The present invention relates to wall structures and more particularly to wall structures that may be fabricated in sections or modules.
It is important in the design of wall structures to provide both lateral strength and lateral rigidity. Lateral strength is required to resist horizontal loads due to, for example, wind and earthquake forces. If the wall structure is properly designed and constructed, components of the wall will transfer these horizontal or shear forces to adjacent elements in the load path such as other wall components, floors or foundations.
Lateral rigidity is required to prevent the floors and roof from excessive side-sway. If the walls are sufficiently rigid, they will prevent floor and roof framing members from moving off their supports. In addition, buildings with sufficient lateral rigidity will suffer less non-structural damage and thereby avoid long-term degradation due to cracking and water infiltration.
It has long been common to brace walls or wall sections in buildings in order to provide some lateral strength and rigidity. Generally, this bracing has been provided through either sheathing secured to the outside of the wall or by straps or braces that extend at a diagonal along the outside of the wall. Such sheathing and diagonal bracing do transfer loads and tend to provide some measure of lateral strength and lateral rigidity in the wall. However, because of the location of the sheathing or the bracing, the loads transferred are transferred eccentrically. This, of course, results in the loads tending to twist the wall structure and its components, and consequently these loads are not directly and concentrically transferred to the foundation or other termination points. In the end, such exterior sheathing and exterior bracing does not efficiently transfer shear loads.
Therefore, there has been and continues to be a need for a wall structure or wall module that is designed to efficiently provide both lateral strength and lateral rigidity through a concentric design.
The present invention relates to a wall structure, wall component or wall module that includes a pair of opposed members and a plurality of spaced apart studs connected between the opposed members. Openings are formed in the respective studs and at least one diagonal brace extends through the openings of the studs and is effectively connected at opposite ends to oppose corner areas of the wall structure.
In one embodiment, the diagonal bracing or support extends generally centrally through the wall structure. That is, the wall structure includes a pair of opposed sides and a generally central area disposed between the two opposed sides. The bracing includes a diagonal member such as a metal rod, shaft or cable that extends through the general central area or through a central plane of the wall structure or wall module. This generally centrally disposed brace or support is operative to carry and transfer loads concentrically from the point of the applied loads to one or more termination points.
In one particular embodiment of the present invention, the wall structure or wall module includes an upper member, a lower member, and a series of spaced apart studs connected between the upper and lower members. Openings are provided in a series of the studs. A diagonal brace extends through the openings within the studs and wherein the openings within the studs are spaced such that the diagonal brace or diagonal support structure can extend between opposed corner areas of the wall structure or wall module. A pair of connectors are connected to opposite ends of the brace or support structure and extend therefrom to where the connectors connect to opposed corner areas of the wall structure.
In another particular embodiment of the present invention, the connectors just discussed are effectively connected at one end to the diagonal brace or support structure and at the other end the connector extends between one of the studs, or an end column, and either the upper or lower member of the wall structure. There the connector is fastened to the wall structure.
Other objects and advantages of the present invention will become apparent and obvious from a study of the following description and the accompanying drawings which are merely illustrative of such invention.
With further reference to the drawings, the wall structure or wall module of the present invention is shown therein and indicated generally by the numeral 10. Wall structure 10 basically comprises an upper member 12 and a lower member 14. Members 12 and 14 may assume various configurations but in one embodiment, upper member 12 and lower member 14 would be of a generally U-shaped channel construction. In the case of the U-shaped channel construction, each member 12 and 14 would include a central or web portion and a pair of upturned, or downturned, as the case may be, flanges.
Secured between the upper member 12 and lower member 14 is a plurality of spaced apart studs 16. The studs are secured to both the upper and lower members 12 and 14. Studs 16 may be secured to the upper and lower members 12 and 14 in any number of ways. For example, fasteners such as screws can be extended through the flanges of the upper and lower members 12 and 14 into the respective studs. In addition, or in the alternative, 90° clips can be used to connect the respective studs to members 12 and 14.
Each stud 16 in the embodiment illustrated is of a channel construction and includes a web and a pair of opposed flanges. Certain studs 16 provided within the wall structure 10 are provided with openings 18 formed in the web portion of the studs. As will be appreciated from subsequent portions of this disclosure, the openings 18 are particularly spaced. For the most part, each of the studs 16 found in the wall structure 10 are of the same basic construction. However, in certain embodiments, the studs positioned on opposite ends of the wall structure 10 may be referred as columns and may be of a slightly different configuration and/or a heavier gauge metal in the case of a metal wall structure. In fact, the ends or columns of the wall module may comprise multiple members.
As seen in
Braces 20 extend through the openings 18 formed in the studs 16. Consequently, the braces 20 extend through a central plane or a central area of the wall structure 10. Expressed in another way, the wall structure 10 includes opposed sides. Disposed between the opposed sides of the wall structure is a central area that basically lies between the opposed sides. The braces or support members 20 extend diagonally through this central area.
The braces or support members 20 can assume various configurations or designs. For example, the braces 20 may be in the form of shafts, rods, cables or other types of connecting or support structures. In the embodiment illustrated in the drawings, each brace 20 is in the form of a rod or shaft and includes a pair of sections 22 joined together by a threaded coupling or threaded sleeve 24. Formed about each end of each brace 20 is a threaded end 26. However, it may be preferred to provide each diagonal brace as a single member with the opposite ends having left and right hand threads. This means that the single member brace can be secured and tightened into two opposite connectors by turning the single member brace in a single direction.
As discussed above, the wall structure 10 includes four corner areas 28. Each brace 20 extends between opposed corner areas and is effectively connected to opposed corner areas. More particularly, a connector, indicated generally by the numeral 30, is connected to each end portion of each brace 20 and is in turn connected to a corner area 28 of the wall structure. Generally, each connector 30 includes a pair of sections, a first section and a second section. The first section of the connector 30 extends from the end portion of a respective brace 20 towards a connecting point in the wall structure. The second section of the connector 30 actually connects to a portion of the wall structure 10. In terms of the embodiment illustrated in
Thus, each connector 30 includes a pair of plates 32 and 34.
The cross members 32a and 34b include an opening that enables an end portion of a respective brace 20 to be extended therethrough. The second or tail section of the connector 30 is designed to be inserted between a stud or end column 16 and one of the members 12 and 14. This is particularly illustrated in
The connector 30 shown herein is fabricated from sheet metal. It will be understood and appreciated by those skilled in the art that the connector 30 could be a single casting or made from a number of castings.
The wall structure 10 shown in
The respective connectors 30 and the braces 20 attached thereto can be securely stationed or fastened within the wall structure by tightening the retainer 52. By tightening the retainer 52, each connector 30 is pulled or urged in an axial direction along the rod or shaft 22 that forms the brace 20. This effectively places the rod or brace 20 in tension.
It is appreciated that the connector 30 such as shown in
The wall structure 10 of the present invention may be constructed of various components and materials. In one embodiment, it is contemplated that the wall structure would be of a basic metal construction.
From the foregoing specification and discussion, it is appreciated that the wall structure or modules 10 of the present invention can be constructed of various heights and widths. Once constructed in the fashion described, the wall structures or modules are inherently rigid and strong. Further, the wall structure or module 10 has the capacity to efficiently transfer shear loads to selected points in the wall structure such as to both upper and lower termination points. Thus, in the case of a shear load applied horizontally from the left, as viewed in
The present invention may, of course, be carried out in other specific ways than those herein set forth without departing from the scope and the essential characteristics of the invention. The present embodiments are therefore to be construed in all aspects as illustrative and not restrictive and all changes coming within the meaning and equivalency range of the appended claims are intended to be embraced therein.
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