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Hysteretic behavior of partially buckling-restrained steel plate shear walls with coupled restraining steel tubes
Highlights Partially buckling-restrained steel plate shear walls (PBRSPSWs) with coupled restraining steel tubes (CRSTs) is proposed. CRSTs can effectively restrain the out-of-plane buckling deformation of steel plate in PBRSPSWs. Energy dissipation capacity of PBRSPSW can be improved by decreasing height-to-thickness ratio of unstiffened zones. Formula used to calculate the bearing capacity of PBRSPSW is proposed.
Abstract This paper presents a new partially buckling-restrained steel plate shear walls (PBRSPSWs) that used coupled restraining steel tubes (CRSTs) as buckling restraining members. Compared with traditional restraining panels, CRSTs have the advantages of small cross-section, light-weight, and stable buckling restraining effect. Quasi-static tests of four specimens under the cyclic load were carried out to investigate the seismic performance of PBRSPSWs with CRSTs. Test results prove that CRSTs serve well as effective buckling restraining members in PBRSPSWs. Compared to unstiffened steel plate shear walls (USPSWs), the bearing capacity of PBRSPSWs with CRSTs increases by 6% to 21%. The accumulative dissipated energy at 2% story drift of PBRSPSWs with CRSTs increases by 23% to 101%. The ductility factor of PBRSPSWs with CRSTs ranges from 3.9 to 5.9. Furthermore, the finite element (FE) method is applied to simulate the hysteretic behavior of PBRSPSWs. FE analysis demonstrates that both the bearing capacity and energy dissipation capacity of PBRSPSW increase with the decrease of the height-to-thickness ratio of unstiffened zones, then remain unchanged when the height-to-thickness ratio of unstiffened zones is smaller than 30. The maximum gap between the restraining member and the steel plate is suggested to be half of the thickness of the steel plate. Finally, a formula for calculating the bearing capacity of PBRSPSWs is developed and validated by the test results.
Hysteretic behavior of partially buckling-restrained steel plate shear walls with coupled restraining steel tubes
Highlights Partially buckling-restrained steel plate shear walls (PBRSPSWs) with coupled restraining steel tubes (CRSTs) is proposed. CRSTs can effectively restrain the out-of-plane buckling deformation of steel plate in PBRSPSWs. Energy dissipation capacity of PBRSPSW can be improved by decreasing height-to-thickness ratio of unstiffened zones. Formula used to calculate the bearing capacity of PBRSPSW is proposed.
Abstract This paper presents a new partially buckling-restrained steel plate shear walls (PBRSPSWs) that used coupled restraining steel tubes (CRSTs) as buckling restraining members. Compared with traditional restraining panels, CRSTs have the advantages of small cross-section, light-weight, and stable buckling restraining effect. Quasi-static tests of four specimens under the cyclic load were carried out to investigate the seismic performance of PBRSPSWs with CRSTs. Test results prove that CRSTs serve well as effective buckling restraining members in PBRSPSWs. Compared to unstiffened steel plate shear walls (USPSWs), the bearing capacity of PBRSPSWs with CRSTs increases by 6% to 21%. The accumulative dissipated energy at 2% story drift of PBRSPSWs with CRSTs increases by 23% to 101%. The ductility factor of PBRSPSWs with CRSTs ranges from 3.9 to 5.9. Furthermore, the finite element (FE) method is applied to simulate the hysteretic behavior of PBRSPSWs. FE analysis demonstrates that both the bearing capacity and energy dissipation capacity of PBRSPSW increase with the decrease of the height-to-thickness ratio of unstiffened zones, then remain unchanged when the height-to-thickness ratio of unstiffened zones is smaller than 30. The maximum gap between the restraining member and the steel plate is suggested to be half of the thickness of the steel plate. Finally, a formula for calculating the bearing capacity of PBRSPSWs is developed and validated by the test results.
Hysteretic behavior of partially buckling-restrained steel plate shear walls with coupled restraining steel tubes
Hou, Jian (author) / Guo, Lanhui (author) / Zhong, Heng (author) / Gao, Shan (author) / Chen, Jie (author)
Engineering Structures ; 276
2022-11-27
Article (Journal)
Electronic Resource
English
Seismic behavior of novel partially connected buckling-restrained steel plate shear walls
| British Library Online Contents | 2017
Hysteretic Analysis and a Simplified Model of Buckling Restrained Steel Plate Shear Walls
| Springer Verlag | 2020