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带或不带加劲肋的钢板剪力墙系统主要用于抵抗水平荷载,尤其是地震作用。现有文献对不带加劲肋的钢板剪力墙进行了大量的理论分析和试验研究,并提出了多种适用于超薄钢板剪力墙的分析方法,但对带加劲肋的钢板剪力墙研究较少。对2个带和不带加劲肋的单肢钢板剪力墙和其中的1榀外框架进行试验。结果表明,加劲肋提高了钢板剪力墙的性能,使钢板的能量耗散能力增加26%、剪切刚度增加51.1%,而对钢板的剪切强度影响甚微。此外,利用试验结果验证剪力墙-框架相互作用理论(PFI)的可行性。试验结果表明,该理论能够用于预测带或不带加劲钢板剪力墙剪切时的荷载-位移曲线。
Steel wall shear walls with or without stiffeners are mainly used to resist horizontal loads, especially earthquakes. The existing literatures do a lot of theoretical analysis and experimental research on steel plate shear walls without stiffeners, and put forward a variety of analytical methods suitable for thin steel plate shear walls. However, Less research Two single-wall shear walls with and without stiffeners and one outer frame were tested. The results show that the stiffener improves the performance of the steel plate shear wall, increases the energy dissipation capacity of the steel plate by 26%, increases the shear stiffness by 51.1% and has little effect on the shear strength of the steel plate. In addition, the feasibility of the shear wall-framework interaction theory (PFI) is verified by the test results. The experimental results show that this theory can be used to predict the load-displacement curve of shear walls with or without stiffened steel plates.