Experimental analysis on seismic performance of steel reinforced concrete shear wall with different types of steel bracings
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TU398.2

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    Abstract:

    The steel reinforced concrete shear wall is widely used in high-rise buildings for its high strength, high stiffness and excellent stability. In order to study the influence of different steel types on its anti-seismic performance, low cyclic loading test has been carried out, including three experiments on the 1/3 scale of steel reinforced concrete shear walls (the steel as brace is X-type, AC1-type and AC2-type, respectively) and one contrast experiment on a standard reinforced concrete shear wall. According to the failure process and modes, the bearing capacity, crack propagation, stiffness, ductility and energy dissipation of shear wall were significantly influenced. The experimental results show that the steel bracings results in a better performance of the bearing capacity, stiffness, ductility and energy dissipation capacity of the shear wall. The ultimate bearing capacity of shear wall was increased by 71.9%, 64.6% and 49.4% using AC1-type, AC2-type and X-type, respectively. The ductility coefficient was increased by 19.3%, 5.0% and 14.5% accordingly. The stiffness of the steel reinforced concrete shear wall with steel bracings is much better than that of the contrast specimen and the stiffness degradation rate is slower in the middle and later stages of experiment. In addition, the plastic zone of the steel reinforced concrete shear wall with steel bracings increases dramatically, and the hysteretic loop is more full.

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王玉镯,高希虎,许德建,王慧敏,傅传国.不同支撑形式的型钢混凝土剪力墙抗震性能试验研究[J].土木与环境工程学报(中英文),2018,40(5):44~53

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History
  • Received:January 31,2018
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  • Online: August 11,2018
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