摘要
钢筋混凝土T梁是我国中小跨径公路桥梁的主要形式之一。由于修建时的历史条件和几十年的运营,尤其是近年来大吨位运输车辆的增多和交通量的增加,这些桥梁存在着挠度过大、开裂、锈蚀等问题,为了评价其安全程度、服务水平和可以利用的承载能力,本文采用三维固体元中六面体八结点单元对此类梁进行了全过程的受力分析,并与试验数据进行了对比,结果表明,非线性分析与实测数据符合良好。
As the most common type of highway bridge structure in China, the reinforced concrete T-girders mostly deformed excessively, cracked and corroded after decades'service. When the traffic grew increasingly, in order to evaluate the bridge's loading capacity reasonably, 3-D Finite Element of non-liearity is adopted. In this paper, to analyze the history of stress-strain from elastic to ultimate state, the experiment results are compared with the theoritical values showing good consistence of them.
出处
《公路交通科技》
CAS
CSCD
北大核心
1991年第4期13-18,共6页
Journal of Highway and Transportation Research and Development
关键词
钢筋混凝土
桥梁
T梁
非线性
reinforced concrete T-girders non-linearity finite element method
