底层柔性框架结构抗震优化设计  

Seismic Optimization Design of Bottom Flexible Frame Structures

作　　者：黄昆[1] 

机构地区：[1]湖州职业技术学院,浙江湖州313000

出　　处：《工程建设与设计》2015年第12期49-51,共3页Construction & Design for Engineering

基　　金：浙江省教育厅科研项目资助(Y201432019)

摘　　要：底层柔性框架结构是一种抗震性能较差的结构形式,在地震作用下结构的底层变形较大,容易导致结构严重破坏。为了避免出现底部薄弱层,在进行结构设计时应根据建筑功能要求选择合理的结构方案。采取增加构件截面尺寸、增设腰梁、设置翼柱等方案均能减小层间刚度比,但应根据具体情况来选用。在有条件的情况下,设置底层翼柱的抗震效果和经济性较好,值得推广使用。The bottom flexible frame structure is a kind of structural form with poor seismic performance,and the bottom deformation of the structure is larger, which can lead to serious structural damage. In order to avoid the weak layer in the bottom of the structure, the designer should choose reasonable structure scheme according to the function of the building before the structure design. Increasing the section size of the member, adding the waist beam and setting the flanking column can reduce the stiffness ratio of the layer. Designers should be based on the specific circumstances to choose the most reasonable design scheme. The scheme of setting the bottom flanking column can produce better seismic effect and economy,which is worth promoting in possible cases.

关 键 词：底层柔性框架 抗震优化设计 翼柱 

分 类 号：TU973.31[建筑科学—结构工程]