摘要
本文在试验的基础上对水平配筋浮石混凝土砌块砌体的抗震性能进行了研究,得到了配筋砌体的延性、耗能比、阻尼、刚度和抗剪强度等一些抗震性能指标,论述了配筋率、高宽比和竖向压应力对配筋砌体抗震性能的影响,给出了配筋砌体抗剪强度和刚度计算公式,确定了配筋砌体的三折线型骨架曲线,同时还给定了配筋砌体的刚度退化表达式,从而为配筋砌块砌体房屋的时程分析提供了科学数据,本文还对配筋砌体的抗震设计进行了探讨,初步讨论了配置水平钢筋浮石混凝土砌块砌体的配筋率问题。
In this paper, the seismic behavior of horizontal reinforced pumice concrete block masonry is studied based on the experiment. The seismic behavior index of reinforced masonry such as ductility, consumed energy ratio, damp, rigidity and shearing strength are obtained. We expound the effect of the steel ratio, high-width ratio and vertical compression stress on seismic behaviors of reinforced masonry. The calculating formulas of sheafing strength and rigidity of reinforced masonry are given in this paper. Three-line frame work curve of reinforced masonry is defined. The formala of rigidity degeneration of reiforced masonry is also give. Scientific data are provided for duration analysis of brick-masonry buildings. We also discuss the seismic design of the reinforced masonry and the steel ratio of horizontal reiforced pumice concrete block masonry.
