整体式无缝桥梁非线性有限元计算模型研究  

Non-linear finite-element model for analysis of integral and jointless bridges

作　　者：郑秀勤 吴鸣[1] 

机构地区：[1]汕头大学,广东汕头515063

出　　处：《山西建筑》2016年第32期183-185,共3页Shanxi Architecture

摘　　要：以已建整体式无缝桥梁为例,利用大型有限元软件ABAQUS,采用理想线弹性模型,模拟桥梁主体结构,并在考虑地基初始地应力平衡下,建立了整体式无缝桥梁与台后土体及桩周土体相互作用的三维非线性有限元计算模型,分析在自重及温度荷载作用下整体式无缝桥梁的受力情况,通过与实桥的应力实测值和其他不同方法进行对比分析,从而验证所提出计算模型的可行性。Taking a built integral bridge for an example,3D finite-element models of integral bridges and soils were established by using the large-scale finite element analysis software ABAQUS. The bridge structure was simulated by the ideal linear elastic model,and the initial stress balance of the foundation was also considered. In this paper,force performance of integral bridges was analyzed considering the dead load and thermal load. Comparing to the measured stress values from the built bridge,the finite-element model would be verified.

关 键 词：整体式无缝桥梁 有限元模型 温度荷载 受力情况 

分 类 号：U441[建筑科学—桥梁与隧道工程]