论文部分内容阅读
《建筑抗震设计规范》(GB50011-2001)对多层砖砌体结构抗震设计有原则的规定。工程设计中采用底部剪力法计算地震作用。楼层剪力按侧移刚度分配到各墙片(段)。按侧移刚度相等的原则提出了等效截面面积的概念,一是将墙片(段)的弯曲变形等效化;二是将有洞或有构造柱墙片(段)侧移刚度等效化,使繁琐的侧移刚度计算演变成并联柱或串联柱的等效截面面积计算。同时对抗震承载力验算不等式进行简化,可以编制表格和计算程序,使得砖砌体结构的抗震验算和加固设计简捷、方便。
The Code for Design of Seismic Design of Buildings (GB50011-2001) provides the principles for the seismic design of multi-story brick masonry structures. In the engineering design, the bottom shear method is used to calculate the earthquake action. The floor shear is assigned to each wall piece (section) according to the lateral stiffness. According to the principle of equal lateral displacement stiffness, the concept of equivalent cross-sectional area is proposed. One is to equalize the bending deformation of the wall (segment). The other is to equate the lateral stiffness of the hole with or without the structural column The calculation of the tedious lateral stiffness has evolved into the calculation of the equivalent cross-sectional area of parallel columns or tandem columns. At the same time, the checking inequality of bearing capacity is simplified, and the tables and calculation programs can be prepared, which makes the seismic checking and reinforcement design of brick masonry structure simple and convenient.