摘要
本文以节段预制混凝土桥墩模型试验为依托,结合试件所呈现的双向偏心压弯破坏形态,基于平截面假定和混凝土单轴应力-应变关系曲线,建立了其横截面偏心压弯的简化计算模型。采用MATLAB编程工具,对简化模型进行计算求解,对试件横截面的双向偏心压弯全过程进行数值模拟,得出了空心墩横截面的弯矩-曲率全曲线。与试验数据相比,该简化计算方法得出的结果较为可靠。
Based on the segmental precast concrete pier model test, this paper recommended a simplified calculation model for the analysis in eccentric flexure and compression, with the theory of plane section assumption and concrete uniaxial stress strain relationships. This simplified mechanical model can be calculated by MATLAB, and finally got the hollow pier cross-section moment-curvature curve that simulated the process of the specimen biaxial eccentric flexure and compression.Compared to the test data, this simplified calculation method proved reliable.
作者
高聪
GAO Cong(Guangdong Province Academy of Building Research Group Co.,Ltd,Guangzhou 500510)
出处
《建筑监督检测与造价》
2017年第6期45-48,共4页
Supervision Test and Cost of Construction
关键词
偏心受压
双向受弯
节段预制
空心墩
简化模型
eccentric flexure and compression
biaxial bending
segmental precast
hollow pier
simplified model
