This invention relates to steel stud building systems, and, more particularly to brackets for connecting vertical steel wall studs to a building structure in a manner to permit relative vertical movement but prevent relative horizontal movement therebetween.
Many industrial and commercial buildings and an increasing number of residential buildings are being constructed with steel stud wall systems for the various benefits obtained, such as reduced environmental concerns, fire safety and reduced susceptibility from warpage, insects, rust and rot.
In the construction of buildings that may be subject to deflection due to wind or seismic forces, it is preferable to allow a degree of freedom of movement to reduce stress and to prevent fracture of connected parts. Ceilings often must rest directly on a structural frame or on load-bearing walls. Curtain walls, meaning walls such as partition walls which are not intended to support vertical loads, are best designed to not support vertical loads due to deflection of the primary load-bearing support structure of the building. Deflection is due to changes in the live loads.
In addition to the occurrence of wind induced or seismic stress loading of a building structure, building component deflection is caused by changes in live or dead loading of the floor below or the ceiling above the curtain wall. However, typical prior construction systems have been designed so that all parts of a building are connected in a rigid and permanent fashion. When such a building structure is stressed, curtain walls tend to be damaged and the degree of damage sustained by other building parts is also increased.
It is therefore an object of this invention to provide an apparatus for connecting a curtain wall to the primary structure so as to allow relative vertical movement therebetween while restricting relative horizontal movement.
Additional objects, advantages and other novel features of the invention will be set forth in part in the description that follows and in part will become apparent to those skilled in the art upon examination of the following or may be learned with the practice of the invention as described and claimed herein.
To achieve the foregoing and other objects, and in accordance with one aspect of the present invention, an improved bracket for connecting a pair of substantially perpendicular building components is provided. The bracket of the present invention advantageously allows relative vertical movement between the perpendicular building components. Preferably, the bracket includes a first connector plate joined at an edge and aligned with a second connector plate in substantially a right angle to form a right-angled juncture.
A number of substantially triangular stiffener channels are disposed in the right-angled juncture each having a substantially U-shaped cross section. Additionally, a number of substantially linear stiffener channels are provided in the first connector plate that preferably each extend from a corresponding triangular stiffener channel.
The second plate includes a number of elongated slots through which the plate may be connected with a shoulder crew or the like to a building component. The slot allows for vertical movement of the building structure without transferring compressive loads to the building component connected to the second plate, such as an exterior curtain wall. The first plate may be connected to structural framing of the building. When the structural framing of the building flexes downward, the bracket of the present invention allows for relative vertical movement thus relieving stresses and eliminating and resisting horizontal forces caused by wind or seismic loads.
Still other objects of the present invention will become apparent to those skilled in this art from the following description and drawings wherein there is described and shown preferred embodiments of the invention. As will be realized, the invention is capable of other different embodiments, and its several details are capable of modification in various, obvious aspects all without departing from the invention. Accordingly, the drawings and descriptions will be regarded as illustrative in nature and not as restrictive.
The accompanying drawings incorporated in and forming a part of the specification illustrate several aspects of the present invention, and together with the description and claims serve to explain the principles of the invention. In the accompanying drawings:
Reference will not be made in detail to the present preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings wherein like numerals indicate corresponding elements throughout the figures.
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Preferably, a shoulder screw 32 is provided to attach the second connector plate 12 to a non-load-bearing stud 100. Preferably, the shoulder screws 32 provide substantially smooth slidable vertical movement relative to the second connector plate 12 and the non-load-bearing stud 100. Advantageously, when the structural framing (i.e., the structural I-beam 104) is subject to loading and deflected downwardly, the bracket of the present invention allows for vertical movement of the building structure without transferring compressive loads to the non-load bearing stud 100 or associated curtain wall. Accordingly, the exterior curtain wall stud may be attached to the supporting structure 104 while resisting horizontal forces and stresses caused by wind and other seismic loading. As a result, horizontal forces are resisted while the bracket 10 simultaneously provides for the vertical deflection of the primary building structure.
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An additional preferred embodiment of the bracket of the present invention is indicated generally by the reference numeral 10d in
The foregoing description of a preferred embodiment of the invention has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. Obvious modifications or variations are possible in light of the above teachings. The embodiments were chosen and described in order to best illustrate the principles of the invention and their practical application to thereby enable one of ordinary skill in the art to best utilize the invention in various embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims attended hereto.
This application is a continuation application of U.S. patent application Ser. No. 09/912,098 to Rahim Allagheband Zadeh, filed Jul. 24, 2001 now U.S. Pat. No. 6,688,069 and entitled Vertical Slide Clip and which claims the benefit of U.S. Provisional Patent Application Ser. No. 60/220,420, filed Jul. 24, 2000.
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Number | Date | Country | |
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20040118075 A1 | Jun 2004 | US |
Number | Date | Country | |
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60220420 | Jul 2000 | US |
Number | Date | Country | |
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Parent | 09912098 | Jul 2001 | US |
Child | 10732753 | US |