Patent Application
20230417049
Conventional construction is typically conducted in the field at the building job site. People in various trades (e.g., carpenters, electricians, and plumbers) measure, cut, and install material as though each unit were one-of-a-kind. Furthermore, activities performed by the trades are arranged in a linear sequence. The result is a time-consuming process that increases the risk of waste, installation imperfections, and cost overruns.
Traditional building construction continues to be more and more expensive and more and more complex. Changing codes, changing environments, and new technology have all made the construction of a building more complex than it was 10 or more years ago. In addition, trade labor availability is being reduced significantly. As more and more craftsmen retire, fewer and fewer younger workers may be choosing the construction industry as a career, leaving the construction industry largely lacking in skilled and able men and women to do the growing amount of construction work.
The construction industry is increasingly using modular construction techniques to improve efficiency. Modular construction techniques may include pre-manufacturing complete volumetric units (e.g., a stackable module) or one or more building components, such as wall panels, floor panels, and/or ceiling panels, offsite (e.g., in a factory or manufacturing facility), delivering the pre-manufactured modules or components to a building construction site, and assembling the pre-manufactured modules or components at the building construction site.
While modular construction techniques provide certain advantages over traditional construction techniques, challenges continue to exist in being able meet housing and other building demands in communities. For example, the construction industry, whether using modular construction techniques or traditional construction techniques, needs to be able to address issues such as reducing construction costs and construction waste, reducing time to build, providing building designs that efficiently use space, and other challenges brought on by increasing demands for affordable housing and other building needs.
An embodiment provides a pre-manufactured load bearing wall for a multi-story building. The load bearing wall includes:
Another embodiment provides a multi-story building. The building includes:
Still another embodiment provides method to manufacture a load bearing wall for a multi-story building. The method includes:
In the following detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, similar symbols typically identify similar components, unless context dictates otherwise. The illustrative embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented herein. The aspects of the present disclosure, as generally described herein, and illustrated in the Figures, can be arranged, substituted, combined, separated, and designed in a wide variety of different configurations, all of which are contemplated herein.
This disclosure is drawn, inter alia, to methods, systems, products, devices, and/or apparatuses generally related to pre-manufactured load bearing walls that may be used in multi-story buildings having other pre-manufactured building parts (e.g., floor-ceiling panels, stair and elevator modules, steel transfer structures, corridor panels, etc.), such as a low-rise or mid-rise building. The load bearing walls are structural in that they are able to absorb and/or transfer lateral and/or vertical loads.
Traditionally, buildings are constructed using a steel structural frame that is designed to resist vertical and lateral loads. Thus, the structural frame can be thought of as a skeletal structure of a multi-story building, wherein the structural frame provides structural support for the building by absorbing vertical loads due to the weight of multiple stories and lateral loads such as due to wind or earthquakes, as well as providing the framing for various walls, floors, ceilings, and other components that can be affixed to the structural frame during the course of constructing the building. However, manufacturing and assembling such a traditional and extensive structural frame can be time consuming and costly in terms of labor and material. For instance, an affordable housing crisis or other community needs may dictate that buildings with good structural integrity be built quickly and economically.
Therefore, various embodiments disclosed herein pertain to construction of a building using load bearing walls and other building parts such that the reliance upon a traditional structural frame can be reduced or eliminated, while at the same time enabling the building to meet lateral and vertical loading requirements. The load bearing walls can be pre-manufactured demising walls, end walls, or other vertical walls (including possibly utility walls), at least some of which are constructed and arranged so as to provide the structural support for the building in a manner that is sufficient to enable the building to handle vertical and lateral loads. The other building parts, such as the pre-manufactured floor-ceiling panels and corridor panels and their accompanying components, in combination with the load bearing walls and coupling linkages between them, also enhance the structural integrity for the building (e.g., for handling or transferring loads), improve acoustical performance, and increase fire safety.
The building may be a multi-story low-rise building or a multi-story mid-rise building in some embodiments. Each story of the building can include a single unit or multiple units. For instance, a particular unit may be living space, office space, retail space, storage space, or other human-occupied space or otherwise usable space in the building. In the context of living space, as an example, each story of the building may include multiple units to respectively accommodate multiple tenants.
The use of the pre-manufactured load bearing walls and other pre-manufactured parts enables the building to be constructed with a shorter time to build and at a lower cost (relative to a building that is constructed using a traditional structural frame), and without sacrificing the structural integrity of the building. Moreover, the floor-ceiling panels of the building may be made thinner relative to conventional floor-ceiling panels, thereby enabling the building to have more stories per vertical foot compared to a traditional building, or to have more open space per linear foot when relatively thinner load bearing walls are used. Thus, the building is able to provide more usable space (e.g., living space) as opposed to a traditional building that occupies the same footprint. In other cases, the thinner floor-ceiling panels provide more space between the floor and ceiling of each unit, which may be desirable for some occupants that prefer living spaces with “high ceilings.”
In some embodiments, the material composition of an entire module, as well as the wall, ceiling, and floor panels, may include steel. In some embodiments, the material composition may include aluminum. In still other embodiments, the wall, ceiling, and floor panels may be made from a variety of building suitable materials ranging from metals and/or metal alloys, composites, to wood and wood polymer composites (WPC), wood based products (lignin), other organic building materials (bamboo) to organic polymers (plastics), to hybrid materials, earthen materials such as ceramics, glass mat, gypsum, fiber cement, magnesium oxide, or any other suitable materials or combinations thereof. In some embodiments, cement, grout, or other pourable or moldable building materials may also be used. In other embodiments, any combination of suitable building material may be combined by using one building material for some elements of the entire module, as well as the wall, ceiling and floor panels, and other building materials for other elements of the entire module, as well as the wall, ceiling, and floor panels. Selection of any material may be made from a reference of material options (such as those provided for in the International Building Code), or selected based on the knowledge of those of ordinary skill in the art when determining load bearing requirements for the structures to be built. Larger and/or taller structures may have greater physical strength requirements than smaller and/or shorter buildings. Adjustments in building materials to accommodate size of structure, load, and environmental stresses can determine optimal economical choices of building materials used for components in an entire module, as well as the wall, ceiling, and floor panels described herein. Availability of various building materials in different parts of the world may also affect selection of materials for building the system described herein. Adoption of the International Building Code or similar code may also affect choice of materials.
Any reference herein to “metal” includes any construction grade metals or metal alloys as may be suitable (such as steel) for fabrication and/or construction of the entire module, as well as wall, ceiling, and floor panels, and/or other components thereof described herein. Any reference to “wood” includes wood, wood laminated products, wood pressed products, wood polymer composites (WPCs), bamboo or bamboo related products, lignin products and any plant derived product, whether chemically treated, refined, processed or simply harvested from a plant. Any reference herein to “concrete” or “grout” includes any construction grade curable composite that includes cement, water, and a granular aggregate. Granular aggregates may include sand, gravel, polymers, ash and/or other minerals.
The building 100 may be a multi-story building with one or more units (e.g., living, office, or other spaces) in each story. In the example of
The ground floor level L1 may contain living spaces, office spaces, retail spaces, storage spaces, common areas (such as a lobby), etc. or combination thereof. Levels L2-L6 may also contain living spaces, office spaces, retail spaces, storage spaces parking, storage, common areas, etc. or combination thereof. Such spaces may be defined by discrete units, separated from each other and from corridors or common areas by interior demising walls and utility walls (not shown in
Each end of the building 100 includes an end wall 102. One or more panels that make up the end wall 102 may span a single story in height. Any of the sides of the building 100 may include an end wall or a window wall 104 that accommodates a window 106, such as window(s) for unit(s). One or more panels that make up the window wall 104 may span a single story in height. Some parts of the building 100 may include an end wall devoid of windows (e.g., not a window wall), such as an end wall 108, which may be comprised of a panel that spans one story of the building 100.
The unit(s) in each story may be formed using either an entire pre-manufactured module or from one or more pre-manufactured floor-ceiling panels (not shown in
The sides of interior walls that face the interior space (e.g., living space) of the building 100 may be covered by a finish panel, such as wall paneling, for decorative and/or functional purposes. Analogously, the tops and bottoms of floor-ceiling panels that face the interior space (e.g., living space) of the building 100 may also be covered with laminate flooring, finish panels, tile, painted/textured sheathing, etc. for decorative and/or functional purposes. For exterior walls such as end walls and window walls, the sides of these walls facing the outside environment may be covered with waterproofing membranes, tiles, glass, or other material for decorative and/or functional purposes.
According to various implementations, the building 100 is constructed using load bearing walls (such as demising walls, end walls, etc.). In this manner, such walls are able to support vertical loads, and non-shear walls are able to transfer lateral loads and shear walls are able to transfer and resist lateral loads. Because these walls are load bearing components, the building 100 can eliminate or reduce the use of an extensive steel structural frame in at least some of the levels. For instance, a steel structural frame (e.g., made of an array of beams and columns to which each and every floor-ceiling panel and wall are directly attached) may be absent in levels L2-L6. A steel structural frame may be used in level L1 and/or further structural reinforcement may be given to load bearing walls that are used in level L1 alternatively or in addition to a structural frame, so as to provide structural integrity at ground level.
The building 100, having six levels L1-L6, is defined in some jurisdictions as a mid-rise building (e.g., buildings having six to 12 levels). Buildings having five levels and under are defined in some jurisdictions as a low-rise building. The various embodiments of the load bearing walls described herein may be used in low-rise and mid-rise buildings. Such low-rise and mid-rise buildings may have various fire ratings, with a 2-hour fire rating for mid-rise buildings of six stories or more and a 1-hour fire rating for buildings of five stories or less being examples for some of the buildings that use the load bearing walls described herein.
In some embodiments, the load bearing walls and other building parts described herein (in the absence of a structural frame, or with a reduced amount thereof) may be used for buildings that have a greater number of stories than a typical low-rise or mid-rise building. In such embodiments, the load bearing walls and/or other building parts described herein may be implemented with additional and/or modified structural components, so as to account for the increased load associated with the greater number of stories.
To describe a construction sequence to arrive at the partially constructed building 200 in
Next in the construction sequence, pre-manufactured stair and elevator modules 210 and 212 may be built on the foundation 204, and positioned such that the elevator portions of the modules 210 and 212 that will contain the elevator shaft are superimposed over the elevator pit(s) 208. The modules 210 and 212 according to various embodiments may be two stories in height, and there may be one or more of these modules per building, with two modules 210 and 212 shown by way of example in
Each of the modules 210 and 212 may be comprised of vertical columns made of steel, and horizontal beams spanning between the columns and also made of steel. Thus, the columns and the beams form a structural frame, which according to various embodiments is a load bearing structure that is able to withstand vertical and lateral loads. In other embodiments, the columns may be replaced by load bearing wall panels and the beams may remain as load bearing rings.
The modules 210 and 212 of various embodiments are positioned at specific locations of the foundation 204. In the example of
Next in the construction sequence, braced frames are installed on the foundation 204 in relation to the modules 210 and 212. For example, braced frames 214 and 216 are arranged perpendicularly around and in close proximity to the module 210, such that the module 210 is nested by the braced frames 214 and 216. With respect to the module 212, braced frames 218 and 220 are also arranged perpendicularly relative to each other but are spaced away from the module 212 by a greater distance.
The braced frames 214-220 may be arranged on the foundation 204 in any suitable location and orientation, dependent on factors such as the footprint or configuration of the building 200, source of lateral and/or vertical loads, location/orientation for optimal stabilization, etc. Any suitable number of braced frames may be provided at the ground level. The braced frames may further vary in configuration. The example of
According to various embodiments, the modules 210 and 212 are used as erection aids that guide the positioning and orientation of the braced frames 214-220 during construction. For instance, the modules 210 and 212 are installed first, and then the braced frames 214-220 are arranged relative to the location of the modules 210 and 212. The braced frames may be directly welded (or otherwise attached/connected) to the modules, or may be linked to the module(s) over a distance via linking beams or other structural framing. In this manner, the modules 210 and 212 stabilize the braced frames 214-220, and the braced frames 214-220 can operate to also absorb vertical and lateral loads from the building 200 via their linking connections.
The next phase of the construction sequence involves the erection of a steel transfer structure 222 (e.g., a podium structure) at ground level. The steel transfer structure 222 comprises a steel frame that receives and transfers load to the foundation 204 and to the braced frames 214-220. The steel transfer structure 222 may have vertical members 224 (columns) having a height that spans one story, girders 226 that join pairs of columns 224, and beams 228 that perpendicularly join pairs of girders 226. The steel transfer structure 222 may further include vertically oriented “spigots” and/or other protrusions or engagement features to aid in construction, as will be described more fully below.
After completion of the steel transfer structure 222, the next phase of the construction sequence involves the placement/installation of the floor-ceiling panels 202 over consecutive beams 228, and more specifically, hanging the floor-ceiling panels 202 onto the beams 228. A floor deck comprised of floor-ceiling panels 202 thus results after such installation.
Afterwards, the load bearing walls 230 (e.g., demising walls and end walls) are installed by being positioned over the beams 228, and utility walls 232 are then installed by being hung onto the load bearing walls 230. Next, corridor panels 234 (which may be formed similarly in some respects as the floor-ceiling panels 202) are hung from the utility walls 232.
According to the example depicted in
An installation sequence for the floor-ceiling panels may involve installing the floor-ceiling panel 300A, floor-ceiling panel 300C, and floor-ceiling panel 300B in any suitable sequence. After these three floor-ceiling panels are installed, then the installation sequence moves to the next adjacent space between consecutive beams 228 (e.g., to the left direction in
As will be shown and described in further detail below, the angle 302 includes a horizontal section that rests on a top surface of the beam 228A. A vertical section of the angle 302 is attached to a vertical edge of the floor-ceiling panel 300. A similar angle 302 is attached to the other/opposite transverse edge of the floor-ceiling panel 300, and also has a horizontal section that rests on top of a beam 228B adjacent to that edge of the floor-ceiling panel 300. In this manner, the floor-ceiling panel 300 is hung by its transverse edges between two consecutive beams 228.
With such an arrangement, the floor-ceiling panels 300 each provide a diaphragm that absorbs lateral and/or vertical load(s) and then transfers the load(s), via the angle 302, to the beams 228 of the steel transfer structure 222 and/or to other supporting structure linked to the angles 302. The steel transfer structure 222 then transfers the load(s) via one or more load paths to the foundation 204 and/or to the braced frames (e.g., the braced frames 214-220) via connecting links.
According to some embodiments, the floor-ceiling panels 300 are supported between beams 228 along their transverse sides and are unsupported (e.g., by the girders 226) along their longitudinal sides. Load bearing walls are positioned along and over the transverse sides/edges of the floor-ceiling panels 300. As depicted in
Both of the walls 308 and 310 are load bearing walls. The end wall 308 is also a shear wall (but may not be a shear wall in some situations), and the demising wall 310 may or may not be a shear wall. In general, various structural configurations may be used to enable a wall to be a shear wall so as to resist in-plane shear and overturning. For example, stronger stud configurations or wall material may be used, as well as more dense screw patterns for attaching metal sheets to the walls and augmentation of vertical connections between panels at end studs (tubular members).
In the example of
A similar procedure may be used to install the demising wall 310, by fitting openings (at lower ends of vertical tubular members 314 located at the vertical proximal and distal edges of the demising wall 310) over and around the spigots 306. A result of this installation is shown in
After the floor-ceiling panels, walls, and corridor panels are finished being installed on the second floor level L2, then the construction sequence described with respect to
In
Holes 402 may be formed (e.g., offsite at the factory) in the angles 302 of the floor-ceiling panel 400. During installation, such holes 402 may be superimposed over holes 410 formed at the upper surfaces of the walls 308/310, so as to facilitate the alignment and positioning of the floor-ceiling panel 400 with some precision. For instance, temporary pegs or screws may be inserted into the holes 402 and 410 during installation to align and hold the floor-ceiling panel 400 in place, while the angle 302 is screwed, bolted, or welded to a top plate on the top surfaces of the walls 308 and 310.
Moreover, further spigots 306 may be installed on top of the walls 308 and 310, for alignment and securing of the upper end wall and demising wall that will be installed next on top of the respective lower end wall 308 and demising wall 310. The angle 302 may have cutouts 404 to accommodate fasteners (e.g., bolts) for a mounting base of spigots 306 and/or to accommodate other parts or fasteners.
The interior of each wall includes vertical parallel metal studs 510 along the entire length of the walls. The studs may be spaced at 18″ on center (e.g., their centers are 18 inches apart), 16″ on center, or some other spacing. Traditional studs are spaced at 24 inches on center, and so the reduced spacing distance between the studs 510 enables more studs to be present per linear foot of the length of the wall, thereby providing the wall with increased capability to support a vertical load.
According to some embodiments, each individual stud 510 may be formed from one or more vertically arranged C-channels having example dimensions of about 2 inches by 6 inches nominally, or 3⅝ inches by 1⅝ inches, with a 12 gauge, 14 gauge, or 16 gauge thickness (or other thinner or thicker gauge). One or more horizontally arranged C-channels may provide an upper track 512 (first track) attached/affixed to the upper ends of the studs 510, and a lower track 514 (second track) attached/affixed to the lower ends of the studs 510. The tracks 512/514 may be 14 gauge or other gauge/thickness of steel.
Each of the walls 310/500 may include a metal layer 516 on both sides of each wall 310/500, such as sheet of metal made of 20 gauge steel or other steel gauge/thickness. The metal layer 516 covers the internal structure and other parts of the walls (such as the studs 510, utilities, insulation, etc. in the interior of the walls, not shown in
A horizontal metal plate 520 may be affixed on top of the upper track 512, and may run along the entire length of the upper edge of the lower wall 310 or along a portion thereof. The metal plate 520 may be steel, for example, that is about 7 inches wide and ¼ inches thick. The metal plate 520 may be affixed (offsite at a factory) to the upper track 512 via screws or bolts or other fasteners, by welding to the upper track 512 and/or to the metal layer 516, or by some other attachment method.
The lower portion of each wall 310/500 has an affixed horizontal member 522 (e.g., welded to the lower track 514 and/or to the metal layer 516, bolted or screwed to the lower track 514, etc., which may be performed offsite at a factory). The horizontal member 522 may run along an entire length of the lower track 514 (e.g., runs along the full length between the proximal and distal ends of the wall 500), or may run intermittently in sections along the lower track 514, such as depicted in the example of
According to various implementations, the horizontal member 522 may be made from 14 gauge steel, or ¼ inch steel, or some other steel gauge or thickness. The horizontal member 522 may be 12 inches wide or other dimension. It is understood that the foregoing various dimensions (as well as for various other components described throughout this disclosure), such as thicknesses, gauges, lengths, widths, heights, etc. are for illustrative purposes, and that such dimensions may vary from one implementation to another depending on factors such as material availability, cost considerations, structural performance requirements (including loading and weight requirements), design variations, etc.
A floor-ceiling panel 400A and an adjacent floor-ceiling panel 400B (collectively 400) are hung onto a load bearing demising wall (e.g., the demising wall 310 of
The angle 302 (e.g., an L-shaped member such as a hot-rolled metal angle or other type of load carrying/bearing angle) is positioned over and rests on the plate 520 serving as a head plate at the top of the wall 310. The angle 302 (first angle) includes, in addition to the horizontal section (flange) 502, a vertical section (flange) 504.
The floor-ceiling panel 400 further includes a shear angle 506 (which may also be a cold formed metal angle of 14 gauge, for example) that runs along each of the transverse upper edges/corners of the floor-ceiling panel 400. The shear angle 506 (a second angle) has a horizontal section 508 and a vertical section 528. The horizontal section 508 of the shear angle 506 lies on top of and may be attached to an upper surface of the floor-ceiling panel 400. The angle 302 may be ¼ inch steel, with vertical and horizontal sections of lengths between 2-6 inches, for example. The shear angle 506 may be the same dimensions as the angle 302, or may be made of relatively thinner (or thicker) steel with horizontal/vertical sections that are shorter (or longer) relative to the angle 302.
During offsite manufacturing, the vertical section 528 of the shear angle 506 is welded to the vertical section 504 of the angle 302 (such as via a continuous weld or a stitch weld) at the upper edge of the vertical section 528. The vertical section 504 of the angle 302 is then welded (such as via a continuous weld or a stitch weld), during the off-site manufacturing, to an end member 524 (such as a track in the form of a C-channel) attached to the ends of longitudinally running parallel metal joists 526 of the floor-ceiling panel 400.
Welding or otherwise attaching the vertical section 504 of the angle 302 to the floor-ceiling panel 400 enables the angle 302, after being hung to the wall 310 during the construction sequence, to support the vertical load of the floor-ceiling panel 400. The horizontal section 508 of the shear angle 506 in combination with the angle 302 also provides a load path to enable lateral load to be transferred from the diaphragm, formed by the floor-ceiling panel 400, to the plate 500 and then to load path(s) or connecting links to the braced frames, etc.
This arrangement of the shear angle 506 and the angle 302 thus forms a T-shaped element that each run transversely along the entire length of the upper corner edges of the floor-ceiling panel 400. While the examples are described herein of the shear angle 506 and the angle 302 (both made of metal such as steel) being separate pieces that are attached to each other, some embodiments may use a single integrated piece of metal that is T-shaped.
During the construction sequence and after the floor-ceiling panels 400 are hung from the wall 310, the wall 500 is lowered aligned/positioned into place (e.g., using the spigots 306 as previously explained above), and then the horizontal member 522 is affixed to the each of the horizontal sections 508 of the shear angles 506 of the floor-ceiling panels 400, thereby permanently mounting the upper load bearing wall 500 over the lower load bearing wall 310. The horizontal section 508 thus forms a landing/fastening location for the horizontal member 522. The horizontal member 522 may be affixed to the shear angle 506 such as by screwing, by stitch or continuous welding the horizontal member 522 to the horizontal section 508, or by bolting or other attachment technique.
Affixing the load bearing upper wall 500 to the floor-ceiling panels 400 in this manner enables lateral load to transfer from the upper wall 500 to the horizontal member 522, and then to the shear angle 506 and/or the angle 302. The lateral load can then transfer across the diaphragm formed by the floor-ceiling panel 400 (e.g., via the sheets of steel in the floor-ceiling panel 400) and then to linking connections with further load bearing walls (e.g., via other angles 502/506 and plates 500), other floor-ceiling panels, corridor panels, and through various other linking elements and other possible load paths, and then to resisting elements such as the braced frames, designated shear walls, etc. For example, in the case that the depicted walls are shear walls, lateral forces may follow the path 500 to 522 to 506/302 to 520, and down to wall 310, thereby transmitting collected lateral force from the diaphragm down the shear wall to the steel transfer structure at ground level and into the foundation. These lateral forces may include forces from non-shear bearing walls that are transmitted into the diaphragm by the same connection detail (as described).
The studs 510 are shown, with the metal layers 516 respectively attached to both sides of the studs 510. Other parts of (or attachments) to the wall 310, such as the layers 518 and a facia 602, are also shown in
According to various embodiments, the load bearing wall (e.g., the demising wall 310 or the end wall 308) includes a vertically running tubular member 312 (also shown in
In other implementations, two or more C-channels, I-beams, box beams, or other type of elongated vertical support member may be bundled together to provide the structural support analogous to that provided by the HSS tube shown in
The tubular member 312 is attached, offsite at a factory, to an outer stud 604. This attachment may be done by welding together the tubular member 312 and the outer stud 604, or via the use of fasteners such as bolts/nuts or screws.
The tubular member 312 includes a cap 700 that is sized and shaped to cover the top opening of the tubular member 312. The cap 700 may be the same thickness as the walls of the tubular member 312 (e.g., ¼ inches thick), or may be thinner or thicker.
A vertical slot 702 may be formed at the upper end of the tubular member 312, which is sized and shaped to accommodate a protrusion 704. The protrusion 704 may be oriented in a vertical direction, so as to be orthogonal/perpendicular to the cap 700 that is oriented in a horizontal direction. The protrusion 704 may pass through the slot 702, so as to have a length that extends at least up to the outer surface of the tubular member 312. In the example of
According to various embodiments, the protrusion 704 in combination with the cap 700 operate as a stiffener device for the upper end of the tubular member 312, such as for resisting seismic overturning loads when the wall is a shear wall. In implementations wherein the extended flag-like structure of the protrusion 704 is present, holes 706 may be provided in the protrusion 706 for coupling (e.g., via bolts) to other structural elements, such as a structural link across a corridor, framing for a balcony, or other structure, for purposes of connection and providing a load path for shear or vertical loads.
In some embodiments, the protrusion 704 and the cap 700 may be formed from a single piece of metal that is vertically inserted into the opening of the tubular member 312. In other embodiments, the protrusion 704 and the cap 700 may be separate pieces of metal that are joined together (e.g., by welding off site at a factory) and then vertically inserted into the opening of the tubular member 312. Once inserted into place, the plate 520 is then installed (e.g., by welding or fasteners) over both the upper track 512 and the cap 700.
In some embodiments, the cap 700 and/or the protrusion 704 may be welded to outer surfaces of the tubular member 312, prior to attachment of the plate 520, so as to hold the cap 700 and protrusion 700 in place. In other embodiments the cap 700 (with the protrusion 704 attached thereto) may be loose-fitted over the opening of the tubular member 312 and into the slot 704, and then held in place when the overlying plate 520 is fixedly attached to the upper surface of the wall 310.
Still further, an underside of the cap 700 may be provided with a captive fastener (such as a captive nut 708) to receive a bolt (not shown in
Respective spigots 306A and 306B (collectively 306) are shaped and sized to fit inside tubular members 312/314 (shown in
The attachment section 804 of the spigot 306 further includes at least one alignment hole 808 to align with a respective hole in the tubular member 312/314 of a wall that will be installed over the spigot 306 and over the previously erected lower wall below, plus a plurality of holes 810 to receive bolts for securing that upper wall to the spigot 306. Where the wall is a non-shear demising wall or other type of non-shear wall that may not experience significant shear forces (such as another demising wall positioned above the demising wall 802), the spigot 306B may be provided with a relatively smaller number of holes 810 to receive bolts that secure that upper wall to the spigot 306B. Where the wall is an end wall or other type of wall that may experience significant shear forces (such as another end wall positioned above the end wall 800), the spigot 306A may be provided with a relatively higher number of holes 812 to receive bolts that secure that upper wall to the spigot 306A. The higher number of holes correspond to a higher number of bolts to provide rigidity/strength to ensure that the wall does not twist or overturn when subjected to load, including shear forces. For the holes 810 and 812, the spigots 306 may be provided with captive nuts 814, since the nut-side of the holes may be inaccessible after the tubular members 312/314 of the upper walls are lowered over the spigots 306.
In the implementation of
As shown in
In the implementation of
For example,
Moreover,
According to various embodiments, the utility wall 232 includes an angle 1306 that runs along both of its vertical edges. The angle 1306 includes or is formed with the plurality of tabs 1304 that fits into the slots 1302 of the wall 1300.
The tabs 1304 may have any suitable shape. For example, the tabs 1304 may have a tapered shape so as to be more easily inserted into the slots 1302. The tabs 1304 may also have a hook-shaped configuration in some implementations, so as to provide more secure placement. In still other implementations, the tabs 1304 may be located on the wall 1300, and the slots 1302 may be located on the utility wall 232.
Further attachment mechanisms may be used to hold the utility wall 232 in place. For instance, the tubular member 312 may be provided with a plurality of holes 1308, some of which may be alignment holes and some of which may be holes to receive fasteners (such as screws or bolts) that are inserted into corresponding holes 1310 formed in the angle 1306 of the utility wall 232, thereby further securely attaching the utility wall 232 to the wall 1300.
A second leg of the z-plate 1600 projects outwardly from the face of the wall 308, so as to form a ledge-like support structure. The ledge-like support structure of the z-plate 1600 may be used to support an angle of a corridor panel (a floor-ceiling panel running along a hallway/corridor), in a manner somewhat analogous to the plate 520 of the wall 310 in
The first sheet 1702 and the second sheet 1704 are attached (along a perimeter of the wall 1700) to the underlying upper and lower tracks and to the tubular members of the wall 1700, via a first set of screws 1710. The screws 1710 may be relatively closely spaced, for example 2 inches on center, so as to provide structural strength and rigidity to the diaphragm formed by the first sheet 1702 and the second sheet 1704.
A second set of screws 1712 may be used to attach the first sheet 1702 and the second sheet 1704 to the vertically running parallel studs 510 of the wall 1700. The second set of screws 1712 may be spaced apart at a relatively longer spacing, such as 6 inches or 12 inches on center.
The first sheet 1702 and the second sheet 1704 may be attached to the metal strip 1706 using a third set of screws 1714 that run horizontally above and below the seam 1708. The spacing between the third set of screws may be, for example, 2 inches on center. Furthermore, the metal strip 1706 provides a landing location for screws 1716, at the seam 1708, so as to enable the metal strip 1706 to be attached to the studs 510 of the wall 1700.
According to various embodiments, the first sheet 1702 and the second sheet 1704 (as well as the metal strip 1706) are fastened by these various screws only to the studs 510 and upper and lower tracks, and affixed to the tubular members via welds adjacent to studs. Then, any other layer that overlies the first sheet 1702 and the second sheet 1704, such as gypsum boards or other exterior layers, are fastened (via screws) only to the first sheet 1702 and the second sheet 1704, and not to the studs 510, tracks, and tubular members. This discontinuity provides improved acoustical performance (e.g., sound proofing).
Moreover, the first sheet 1702 and the second sheet 1704 also improve the fire rating and acoustical separation between occupiable space of the building, and provide an air barrier between interior and exterior climates. Pre-installed electrical and/or plumbing utilities can comprise parts of the load bearing wall 1700 and other load bearing walls described herein, and may overlie the first sheet 1702 and the second sheet 1704.
The first sheet 1702 and the second sheet 1704 may be 20 gauge in thickness, for example. The metal strip 1706 may be flat stock that is 4 inches wide and 18 gauge in thickness, for example.
According to various embodiments, the gauges/dimensions/configuration of the studs and tubular members, of all load bearing walls in the building 100, may be generally uniform from one wall to another wall, whether a shear wall versus a demising wall that is not a shear wall and/or whether an upper story wall versus a lower story wall. The stability/capability of shear walls to withstand lateral forces may be provided at least in part by the more robust configuration of the spigots 306 used to support the shear walls. For example and as shown and described above, shear walls may be attached to spigots 306 with stronger brace configurations and a higher number of attachment (bolt) connections to tubular members of shear walls, as compared to non-shear walls that have less robust configurations for and fewer attachment connections to their respective spigots.
Furthermore, screw patterns for the metal layer 516 may vary (e.g., relatively closer versus relatively further spacing between screws) between shear walls and non-shear walls. For example, shear walls may use relatively closer screw spacing compared to non-shear walls. Progressively wider screw spacing may also be used for walls, going from lower stories to upper stories of the building.
In other embodiments, the shapes, dimensions, and configurations of studs and support members at their ends (which may not necessarily be tubular in shape in some embodiments) may vary between shear and non-shear walls, and/or may vary between floor levels. For instance, thicker stud gauges and/or more robust configurations of support members at the ends of the walls may be present for shear walls as compared to non-shear walls. Thinner and/or otherwise relatively less stronger configurations also may be present when going from a lower floor level to an upper floor level.
Such an arrangements described above may be due to the walls on upper floors having to bear less (lighter) loads than walls on lower floors, and so stud arrangements/thicknesses that can withstand smaller vertical loads may be used for upper levels of a building. Moreover, the less robust stud arrangement(s) can be used at the upper levels since there may be less shearing forces at the upper floor levels relative to lower floor levels.
The present disclosure is not to be limited in terms of the particular embodiments described in this application, which are intended as illustrations of various aspects. Many modifications and embodiments can be made without departing from its spirit and scope. Functionally equivalent methods and apparatuses within the scope of the disclosure, in addition to those enumerated herein, are possible from the foregoing descriptions. Such modifications and embodiments are intended to fall within the scope of the appended claims. The present disclosure is to be limited only by the terms of the appended claims, along with the full scope of equivalents to which such claims are entitled. This disclosure is not limited to particular methods, which can, of course, vary. The terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting.
With respect to the use of substantially any plural and/or singular terms herein, the terms can be translated from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. The various singular/plural permutations may be expressly set forth herein for sake of clarity.
In general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims) are generally intended as “open” terms (e.g., the term “including” should be interpreted as “including but not limited to,” the term “having” should be interpreted as “having at least,” the term “includes” should be interpreted as “includes but is not limited to,” etc.).
If a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation, no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases “at least one” and “one or more” to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles “a” or “an” limits any particular claim containing such introduced claim recitation to embodiments containing only one such recitation, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a” and/or “an” should be interpreted to mean “at least one” or “one or more”); the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, such recitation should be interpreted to mean at least the recited number (e.g., the bare recitation of “two recitations,” without other modifiers, means at least two recitations, or two or more recitations).
Furthermore, in those instances where a convention analogous to “at least one of A, B, and C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). In those instances where a convention analogous to “at least one of A, B, or C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). Virtually any disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B.”
In addition, where features or aspects of the disclosure are described in terms of Markush groups, the disclosure is also thereby described in terms of any individual member or subgroup of members of the Markush group.
For any and all purposes, such as in terms of providing a written description, all ranges disclosed herein also encompass any and all possible subranges and combinations of subranges thereof. Any listed range can be easily recognized as sufficiently describing and enabling the same range being broken down into at least equal halves, thirds, quarters, fifths, tenths, etc. As a non-limiting example, each range discussed herein can be readily broken down into a lower third, middle third and upper third, etc. All language such as “up to,” “at least,” “greater than,” “less than,” and the like include the number recited and refer to ranges which can be subsequently broken down into subranges as discussed above. Finally, a range includes each individual member. Thus, for example, a group having 1-3 items refers to groups having 1, 2, or 3 items. Similarly, a group having 1-5 items refers to groups having 1, 2, 3, 4, or 5 items, and so forth.
The herein described subject matter sometimes illustrates different components contained within, or connected with, different other components. Such depicted architectures are merely embodiments, and in fact many other architectures can be implemented which achieve the same functionality. In a conceptual sense, any arrangement of components to achieve the same functionality is effectively “associated” such that the desired functionality is achieved. Hence, any two components herein combined to achieve a particular functionality can be seen as “associated with” each other such that the desired functionality is achieved, irrespective of architectures or intermedial components. Likewise, any two components so associated can also be viewed as being “operably connected”, or “operably coupled”, to each other to achieve the desired functionality, and any two components capable of being so associated can also be viewed as being “operably couplable”, to each other to achieve the desired functionality. Specific embodiments of operably couplable include but are not limited to physically mateable and/or physically interacting components.
While various aspects and embodiments have been disclosed herein, other aspects and embodiments are possible. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting.
The present application is a non-provisional application that claims priority under 35 U.S.C. § 119(e) and/or under PCT Article 8 to U.S. Provisional Patent Application No. 63/104,239, filed on Oct. 22, 2020, and entitled “LOAD BEARING WALLS FOR A BUILDING” and to U.S. Provisional Patent Application No. 63/178,515, filed on Apr. 22, 2020, and entitled “LOW-MID RISE BUILDING HAVING LOAD BEARING WALLS, UTILITY WALLS, AND A CORRIDOR SYSTEM, AND OTHER ACCOMPANYING STRUCTURE, AND METHOD TO CONSTRUCT THE BUILDING.” U.S. Provisional Patent Application Nos. 63/104,239 and 63/178,515 are incorporated herein by reference in its entirety. The present application is related in subject matter to each of the following co-pending applications, each of which shares a common filing date of Oct. 21, 2021, entitled “MULTI-STORY BUILDING HAVING LOAD BEARING WALLS AND METHOD TO CONSTRUCT THE BUILDING” (docket no. SLP-US-927287-03-US-PCT), “MULTI-STORY BUILDING HAVING PODIUM LEVEL STEEL TRANSFER STRUCTURE” (docket no. SLP-US-927288-03-US-PCT), “PRE-MANUFACTURED FLOOR-CEILING PANEL FOR A MULTI-STORY BUILDING HAVING LOAD BEARING WALLS” (docket no. SLP-US-927289-03-US-PCT), “PRE-MANUFACTURED UTILITY WALL FOR A MULTI-STORY BUILDING HAVING LOAD BEARING WALLS” (docket no. SLP-US-927291-03-US-PCT), “PRE-MANUFACTURED FLOOR-CEILING CORRIDOR PANEL FOR. A MULTI-STORY BUILDING HAVING LOAD BEARING WALLS” (docket no. SLP-US-927292-03-US-PCT), “MULTI-STORY BUILDING HAVING PREFABRICATED STAIR AND ELEVATOR MODULES” (docket no, SLP-US-927293-03-US-PCT), and “PRE-MANUFACTURED FLOOR-CEILING DRAG ANCHOR FOR A MULTI-STORY BUILDING HAVING LOAD BEARING WALLS” (docket no. SLP-US-927294-03-US-PCT), all of which are hereby incorporated by reference herein, in their respective entireties.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/US2021/056077 | 10/21/2021 | WO |
| Number | Date | Country | |
|---|---|---|---|
| 63178515 | Apr 2021 | US | |
| 63104239 | Oct 2020 | US |
