Seismic Performance Evaluation of Novel Cold-Formed Steel Framed Shear Walls Sheathed with Corrugated Steel Sheets Page: 19
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out in the vertical chord track-to-bottom track connection. Maximum drift in the cyclic test reached
4.79%, bearing walls were able to carry gravity load without collapse during the test. The failures
of the bearing wall specimen in cyclic test are shown in Figure 4.9.
- A _
(a) Screw pull-out (b) Chord framing member lift up
Figure 4.9 - Failures of the Bearing Wall Specimen in Cyclic Test
For the first shear wall specimen in the cyclic tests. One side of the vertical chord tracks
buckled above the hold-downs at the cycle of 35 and another side of vertical chord tracks buckled
above the hold-downs at the cycle of 38. For the second shear walls specimen, minor local buckling
was observed on the vertical chord tracks. For both tests, screws broke and screws pull-out were
observed on the middle and bottom sheets. Screws pull-out in the overlap between middle sheet
and bottom sheets were also observed. The failures of the shear wall specimen in cyclic test are
shown in Figure 4.10.
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Lan, Xing. Seismic Performance Evaluation of Novel Cold-Formed Steel Framed Shear Walls Sheathed with Corrugated Steel Sheets, thesis, August 2017; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc1011859/m1/27/: accessed May 20, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; .