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本文对钢筋砼框架和桁架的承载能力、刚度及延性,特别是在横向循环荷载作用下的钢筋砼桁架的非线性滞回特性和延性进行了试验研究。试验结果表明钢筋砼桁架具有很好的承载能力、刚度、延性以及很好的经济指标。在试验数据的基础上给出了钢筋砼桁架刚度退化的初步模式。
In this paper, the load-bearing capacity, stiffness and ductility of reinforced concrete frames and trusses, especially the nonlinear hysteresis characteristics and ductility of reinforced concrete trusses under lateral cyclic loading are studied experimentally. The test results show that the reinforced concrete truss has good bearing capacity, stiffness, ductility and good economic indicators. Based on the experimental data, a preliminary model of the stiffness degradation of reinforced concrete trusses is given.