摘要
本文利用弹塑性时程分析的方法对大跨度预应力框架结构进行弹塑性的振动分析,通过分析得到文中动力弹塑性最终计算结果可看出各指标都小于规范中相应的限值。该大跨预应力框架结构在罕遇地震作用下,结构的非预应力梁发生塑性变形,预应力梁基本完好,符合"强柱弱梁"的设计要求,且水平位移较大,具备一定的延性。
Based on elastic-plastic time history analysis method for large span prestressed concrete frame structure,the vibration of the elastic-plastic analysis is obtained by analyzing the calculation results showed the dynamic elastic-plastic ultimate indicators are less than the corresponding limit in the specification. The long-span prestressed concrete frame structure under severe earthquake,the structure of prestressed beam occurred plastic deformation,the prestressed beam basic intact,conform to the requirements of the ＂ strong column weak beam＂ design,and the horizontal displacement is bigger,have a certain ductility.
作者
蒋志成
李晨
Jiang Zhicheng;Li Chen(School of Civil Engineering,Anhui Jianzhu University,Hefei,Anhui,23000)
出处
《江西建材》
2018年第10期28-29,共2页
Jiangxi Building Materials
关键词
大跨度预应力框架
弹塑性时程分析
延性
Large - span prestressed concrete structure
Dynamic elastic - plastic time - history analyses
Ductility
