摘要
研究了节段预制拼接桥墩的抗震解析计算方法,以三个节段预制拼接桥墩试件拟静力试验为背景,基于相容方程、内力平衡和材料本构模型,推导了节段预制拼接桥墩墩顶水平荷载-位移关系计算过程,并采用MATLAB编制了相应的求解程序进行数值计算。结果表明:采用所建立的解析模型计算结果与拟静力试验结果吻合较好,两者之间最大偏差约为8.2%,所建立的计算模型能够较为准确的表述节段拼接桥墩的抗震性能,为其在实际工程中的应用提供理论基础。
In this paper, the analytical calculation method of the earthquake responses of the segmental precasting pier is studied. Based on the compatibility equation, internal force balance and material constitutive model, the calculation process of horizontal load-displacement relationship on the top of segmental precasting pier is derived, relying on the quasi-static test of three precastng pier specimens, and the corresponding numerical program is programmed by MATLAB. The results show that the established calculation model can accurately describe the seismic performance of the segmental pier, and it provides a theoretical basis for its application in practical engineering.
作者
陈秀云
Chen Xiu-yun(School of Architectural Engineering,Huanghuai University,Zhumadian 463000,China)
出处
《工程抗震与加固改造》
北大核心
2021年第6期82-87,共6页
Earthquake Resistant Engineering and Retrofitting
基金
国家自然科学基金项目(51678480)
住建部科技计划项目(2020-K-127)
河南省科技攻关项目(202102310248)
驻马店市重大科技专项(19005)
河南省青年骨干教师计划(16021222)。
关键词
预制桥墩
抗震性能
解析模型
预应力筋
数值计算
precasting pier
seismic performance
analytic model
pre-stressing tendon
numerical calculation
