TB-Lecture24-What-is-a-shear-wall

TB-Lecture24-What-is-a-shear-wall - EGN-5439 The Design of...

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EGN EGN -5439 The Design of Tall Buildings 5439 The Design of Tall Buildings Lecture #24 Lecture #24 What is a shear wall ? L. Prieto-Portar - 2008
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Many parts of the US use cheap wooden frame structures for single family residences. Some of the wall are stiffened by using shear walls.
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Consider the simple analogy of a typical residential interior stud wall. The wall is 12’ long by 8’ high sitting on a concrete slab.
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A stud wall is built from 2”x 4” wooden or steel studs placed every 16” on center, with 2”x 4” pieces at the top and the bottom.
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The studs are secured with “toe-nailing” 10d nails @ 30º.
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Consider now the application of a large horizontal load to the stud wall coming from wind or seismic loads. 1000 lbs
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The shear wall will “rack” and some nails are pulled out. 1000 lbs The dotted lines represents the original structure
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1000 lbs
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TB-Lecture24-What-is-a-shear-wall - EGN-5439 The Design of...

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