A wall either wholly or partially made from a shear-resisting assembly that has a shear transfer device, or plate, disposed between the bottom strut and the underlying foundation. The shear transfer device joins the two anchor bolts, eliminating intermediate foundation bolts by transferring lateral
A wall either wholly or partially made from a shear-resisting assembly that has a shear transfer device, or plate, disposed between the bottom strut and the underlying foundation. The shear transfer device joins the two anchor bolts, eliminating intermediate foundation bolts by transferring lateral shear loads to the anchor bolts in combination with the bottom strut.
대표청구항▼
I claim: 1. A wall designed to resist lateral forces imposed on a building incorporating said wall, said building having an underlying structural component supporting said wall and a generally horizontal structural member, through which lateral shear forces are transmitted, surmounting said wall, s
I claim: 1. A wall designed to resist lateral forces imposed on a building incorporating said wall, said building having an underlying structural component supporting said wall and a generally horizontal structural member, through which lateral shear forces are transmitted, surmounting said wall, said wall comprising: a. a shear-resisting assembly connected to said generally horizontal structural member and also connected to said underlying structural component and disposed between said generally horizontal structural member and said underlying structural component, said shear-resisting assembly including: i. a shear-resisting element; ii. a top strut disposed substantially parallel to said generally horizontal structural member; iii. a bottom strut, having a bottom face, a first end and a second end and a distance between said first and second ends, said distance constituting a selected length of said bottom strut, disposed lengthwise substantially parallel to said underlying structural component; iv. a first chord connected to said top strut and said shear-resisting element; v. a second chord connected to said top strut and said shear-resisting element; vi. means for connecting said shear-resisting element to a plurality of said top strut, said bottom strut, said first chord and said second chord, a plurality of said top and bottom struts and said first and second chords forming a supporting frame for said shear-resisting element; vii. a shear transfer device, including: 1. a first substantially planar end portion having a first anchor opening, said first end portion being proximate said first end of said bottom strut; 2. a first substantially planar inner portion joined to said first end portion and in substantially the same plane, said first inner portion being disposed between said bottom strut and said underlying structural component, said first inner portion interfacing with said bottom face of said bottom strut and being fastened to said bottom face of said bottom strut with mechanical fasteners that do not connect said shear-resisting assembly to said underlying structural member; 3. a second substantially planar end portion having a first anchor opening, said second end portion being proximate said second end of said bottom strut; and 4. a second substantially planar inner portion joined to said second end portion and in substantially the same plane, said second inner portion being disposed between said bottom strut and said underlying structural component, said second inner portion interfacing with said bottom face of said bottom strut and being fastened to said bottom face of said bottom strut with mechanical fasteners that do not connect said shear-resisting assembly to said underlying structural member; b. a first anchor bolt passing through said first anchor opening in said shear transfer device and connecting said shear-resisting assembly to said underlying structural component of said building; and c. a second anchor bolt passing through said second anchor opening in said shear transfer device and connecting said shear-resisting assembly to said underlying structural component of said building, wherein no additional anchor bolt is positioned between said first anchor bolt and said second anchor bolt. 2. The wall of claim 1 wherein: a. said shear transfer device is a shear transfer plate wherein said first inner portion and said second inner portion join between said first end portion and said second end portion to form a middle portion. 3. The wall of claim 2 wherein: a. said shear transfer plate is a single-piece, unitary member. 4. The wall of claim 3 wherein: a. said shear transfer plate interfaces with said bottom face of said bottom strut along the greater portion of the length of said bottom face of said bottom strut. 5. The wall of claim 4 wherein: a. said shear transfer plate is fastened to said bottom face of said bottom strut along the greater portion of the length of said bottom face of said bottom strut. 6. The wall of claim 5 wherein: a. said mechanical fasteners penetrate said bottom face of said bottom strut but do not pass through said bottom strut. 7. The wall of claim 6 wherein: a. said mechanical fasteners are integral nail prongs formed from the material of said shear transfer plate. 8. The wall of claim 7 wherein: a. said bottom strut is made of wood. 9. The wall of claim 8 wherein: a. said first and second anchor openings are obround, each having a first rounded end, a second rounded end, an outer side and an inner side. 10. The wall of claim 9 wherein said shear transfer plate has a first end, a second end, a first side and a second side. 11. The wall of claim 10 wherein: a. said first and second anchor openings are oriented so that said first rounded ends face one of said first and second sides of said shear transfer plate and said second rounded ends face another of said first and second sides of said shear transfer plate. 12. The wall of claim 11 wherein: a. said first and second anchor openings are dimensioned so that said outer sides are in contact with the first and second anchor bolts received by said first and second anchor openings. 13. The wall of claim 12 wherein: a. said first and second anchor openings are dimensioned so that said inner sides are not in contact with the first and second anchor bolts received by said first and second anchor openings. 14. The wall of claim 13 wherein: a. said first and second chords of said wall rest on holdowns that are supported by said underlying structural member. 15. The wall of claim 14 wherein: a. said shear-resisting element is at least one panel. 16. The wall of claim 15 wherein: a. said panel is made of wood. 17. The wall of claim 16 wherein: a. said underlying structural component is cementitious. 18. The wall of claim 17 wherein: a. said underlying structural component is a concrete foundation. 19. The wall of claim 18 wherein: a. said shear transfer plate is made of sheet metal. 20. The wall of claim 19 wherein: a. said shear-resisting assembly is a modular, prefabricated structure. 21. The wall of claim 20 wherein: a. said shear-resisting assembly responds to racking shear loads by permitting said shear transfer plate to separate slightly from said bottom strut at said first end portion when it is in tension, such that said nail prongs tend to withdraw from said bottom face of said bottom strut adjacent said first end portion, while said second end portion is squeezed between said bottom strut and said underlying structural component when it is in compression, and as said racking shear loads reverse said shear transfer plate separates slightly from said bottom strut at said second end portion, such that said nail prongs tend to withdraw from said bottom face of said bottom strut adjacent said second end portion, while said first end portion is squeezed between said bottom strut and said underlying structural component, and said nail prongs adjacent said first end portion return to be re-embedded in said bottom strut. 22. The wall of claim 20 wherein: a. said wall further includes framing with a mudsill on top of said underlying structural component, a plurality of vertical studs standing on said mudsill and connected thereto, said generally horizontal structural member is a top plate supported by and connected to said plurality of vertical studs, said mudsill, studs and top plate are sheathed, and said shear-resisting assembly occupies a space between two of said studs. 23. The wall of claim 2 wherein: a. said first and second chords of said wall bypass said bottom strut such that said bottom strut is shorter than said shear transfer plate. 24. The wall of claim 2 wherein: a. said first and second chords of said wall rest on said bottom strut, which is supported by said underlying structural component. 25. The wall of claim 2 wherein: a. said first and second chords have inner sides that face each other and outer sides that face away from each other, said first anchor bolt is attached to said first chord with a first holdown connector mounted on said outer side of said first chord, and said second anchor bolt is attached to said second chord with a second holdown connector mounted on said outer side of said second chord. 26. The wall of claim 2 wherein: a. said underlying structural component is cementitious. 27. A method of installing the wall of claim 26 wherein: a. said first and second anchor bolts are embedded in said underlying structural component; b. said shear-resisting assembly is placed over said first and second anchor bolts, so that said first anchor bolt passes through said first anchor opening in said first end portion of said shear transfer plate and said second anchor bolt passes through said second anchor opening in said second end portion of said shear transfer plate, and said shear transfer plate rests on said underlying structural component; c. said first and second anchor bolts are attached to said shear-resisting assembly; d. said top strut of said shear-resisting assembly is attached to said generally horizontal structural member. 28. The method of claim 27 wherein: a. said underlying structural component is a concrete foundation. 29. The method of claim 28 wherein: a. said underlying structural component is a concrete foundation and shear-resisting assembly is placed over said first and second anchor bolts after said concrete foundation has set. 30. The wall of claim 2 wherein: a. said wall further includes framing with wall posts that stand on said underlying structural component, and between said wall posts a mudsill rests on top of said underlying structural component, a plurality of vertical studs surmounted by a top plate stand on said mudsill and are connected thereto, said generally horizontal structural member is a beam supported by and connected to said wall posts, said mudsill, studs and top plate are sheathed, and said shear-resisting assembly occupies a space between two of said studs. 31. The wall of claim 2 wherein: a. said sheet metal is heavy gauge steel.
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