高性能混凝土框架结构滞回全过程分析  

Studies on Hysteresis Full-Range Analysis of Hpc Frames

作　　者：程斌[1] 薛伟辰[1] 

机构地区：[1]同济大学,上海200092

出　　处：《应用力学学报》2004年第2期27-32,共6页Chinese Journal of Applied Mechanics

基　　金：教育部高等学校骨干教师资助项目 ( 1183 )

摘　　要：基于非线性有限元原理 ,编制了高性能混凝土梁基于本构关系的滞回全过程分析程序 ,程序设计中考虑了材料非线性、几何非线性、预应力作用、混凝土裂面效应、轴力二次矩、材料双切线模量场等因素的影响 ,并考虑了高性能混凝土的特点 ,程序计算值与试验结果吻合较好。在此基础上 ,编制了高性能混凝土框架结构基于恢复力模型的滞回全过程分析程序 ,对该程序进行了试验验证 ,计算表明高性能混凝土框架结构具有良好的抗震性能。By using nonlinear FEM, a program, capable of hysteresis full-range analysis of HPC beams, is developed on basis of material constitutional law. Material and geometric nonlinearity, effects of prestressing, local contact effects of cracked concrete sections, loading history, effects of P-Δ, loading and unloading modulus of materials, et al, are considered in this program. And characters of HPC are also taken into account. Analyses show calculations are consistent with test results of HPC beams. In addition, a program based on restoring force model, capable of hysteresis full-range analysis of HPC frames, is also developed in this paper. The program is proved by test results. Calculations of HPC frames with different parameters by using this program show that HPC frames have better seismic performance.

关 键 词：高性能混凝土框架 非线性有限元 滞回全过程分析 本构关系 恢复力模型 

分 类 号：TU375[建筑科学—结构工程]