摘要
本文以我国现存的大量的钢筋混凝土组合梁桥为研究对象,结合国内外研究资料,进行了组合T梁的室内试验。分析了其受力机理,提出了该类梁在开裂后,卸载并再次加载时的组合面粘结-滑移曲线的计算方法,编制了分析组合结构的RCCT程序。该程序能较好地反映此类梁开裂后的非线性受力状态,其计算结果与试验结果符合良好。应用本文方法可以分析和研究现存公路钢筋混凝土组合梁桥的实际承载能力。
In view of the pressing need of evaluating a great number of existing RC composite T-girder highway bridges in China, the authors, in the light of researched papers available at home and abroad, carried out laboratory tests of 3 large scale models of typical RC composite T-girders with deck slab. In this paper, the structural mechanism of the girder is analysed and a method of calculating the bond-slid curve at the girder-deck slab joint undermoving and reloading of the composite structure is proposed and a program (RCCT) by nonlinear finite element method is obtained. The fact thattheoritical and experimental data accord well makes it possible to evaluate the girder bridges better by this method.
出处
《公路交通科技》
CAS
CSCD
北大核心
1991年第4期19-26,共8页
Journal of Highway and Transportation Research and Development
关键词
组合T梁
非线性
钢筋混凝土
桥
composite T-girders connection non-linear analysis moving wheel loading
