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Force Performance of Cover-plate Diagonal Stiffening Steel Plate Shear Wall(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2019年02期
Page:
48-55
Research Field:
Publishing date:

Info

Title:
Force Performance of Cover-plate Diagonal Stiffening Steel Plate Shear Wall
Author(s):
ZHENG Hong;  ZHANG Min;  WANG Jia-zheng;  WANG Wei
(School of Civil Engineering, Chang'an University, Xi'an 710061, Shaanxi, China)
Keywords:
cover-plate diagonal stiffening steel plate shear wall;  initial stiffness;  hysteretic curve;  skeleton curve;  buckling load
PACS:
TU398.2
DOI:
-
Abstract:
A new anti lateral force system — cover-plate diagonal stiffening steel plate shear wall was proposed. The finite element software ANSYS15.0 was used to simulate the monotonic loading, cyclic loading and buckling load of the diagonal stiffened steel plate wall(DSW), the single side cover-plate stiffening steel plate shear wall(CSW-1), the double cover-plate stiffening steel plate shear wall(CSW-2)structure. The load-displacement curves, hysteretic curves, skeleton curves, buckling coefficients, buckling loads were obtained, and the force performances of cover-plate stiffening steel plate shear wall structures were compared and analysed. The results indicate that under the monotonic loading, the existence of strengthened cover-plate increases the bearing capacity and initial stiffness of the diagonal stiffening steel plate wall, and CSW-2 is better than CSW-1. Under the cyclic loading, the hysteretic curves of CSW are fuller, the stiffness degradation is slower and the ductility is better, and the reinforcing effect of CSW-2 is better than that of CSW-1. The out-of-plane constraint effect of the diagonal stiffener on the inner steel plate is obvious, and the out-of-plane constraint effect of the cover-plate on the stiffener is also obvious. The elastic buckling load can be increased with a small amount of steel. Considering the influence of stiffener and cover-plate on the elastic buckling load, the suggested value of stiffness ratio of stiffener plate is 30 and the similarity ratio of cover plate is 0.5.

References:

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Last Update: 2019-03-27