钢筋混凝土梁柱组合体在低周交变加载下的滞回规律模拟分析-结构工程专业论文.docxVIP

重庆大学硕十学位论文 重庆大学硕十学位论文 英文摘要 ABSTRACT The beam end displacement ofbeam-column subassemblage may be looked the superposition of three parts deformation that column deformation,beam deformation， and joint deformation．、)ivhere，joint deformation contain slip of longitudinal reinforcement passing throu出joint and shear deformation ofjoint． Based behavior of joint core under cyclic reversal load，according to actual measurement load—displacement hysteresis loops，slip of longjitudinal reinforcement passing through joint and shear deformation of joint in serial of beam—column subassemblage tests，the typical slip hysteresis model of longitudinal reinforcement passing through joint and typical shear deformation hysteresis model of joint proposed in this paper．Three factors，that beam reinforcement relative diameter, concrete intensity,axial compression ratio are considered in the model of slip of longitudinal reinforcement passing through joint，and the correlation between shear deformation and cycle number are simulated Four factors that concrete intensity,axial compression ratio，shear compression ratio，hoop reinforcement characteristic number are considered in the model ofjoint shear deformation，and the correlation between joint shear deformation and cycle number are also simulated． The beam end displacement due to beam and column deformation may be calculated by existing cantilever program and then converted by geometric relation． Considering the joint core deformation effect，the existing cantilever program was assembled with the slip deformation model of longitudinal reinforcement passing through joint and the shear deformation model of joint to obtain the program for simulation ofhysteretic characteristics ofbeam—column subassemblage． By comparing with test results，the llew program is proved to have the capacity of simulating successfully the joint’S seismic behavio