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轻钢轻混凝土结构是由轻钢构架和现浇轻混凝土组成的新型结构体系。为了掌握该结构体系的抗震性能,进行了一个轻钢轻混凝土结构三层足尺模型的拟静力试验,并介绍了该试验模型的设计和建造过程,给出了结构的破坏形态、滞回曲线和层间变形等试验结果,分析了延性、刚度退化、等效黏滞阻尼比和基底剪力,掌握了轻钢轻混凝土结构的抗震性能。研究结果表明:轻钢轻混凝土结构试验模型具有足够的承载能力和延性,能够满足抗震设防烈度7度的要求,其具有良好的抗震性能,可以在相应抗震设防区推广应用。
Light steel light concrete structure is a light steel frame and cast-in-place lightweight concrete composed of a new type of structural system. In order to grasp the seismic performance of the structural system, a three-layer pseudo-static test of lightweight steel-concrete light-weight concrete structure is carried out. The design and construction process of the test model are introduced. The failure morphology, Curve and interlaminar deformation. The ductility, stiffness degradation, equivalent viscous damping ratio and the base shear are analyzed. The seismic performance of light-weight and light-weight concrete structures is mastered. The results show that the light steel lightweight concrete structure test model has sufficient bearing capacity and ductility and can meet the requirements of seismic fortification intensity of 7 degrees. It has good seismic performance and can be popularized and applied in the corresponding earthquake-resistant zone.