摘要
通过对整体式钢筋混凝土简支斜交板桥的模型试验和计算机模拟分析 ,对其在集中荷载下的破坏形态和极限承载能力作了探讨。分析表明 ,整体式简支斜板的跨中边缘和钝角附近常处于受力不利状态 ,破坏也从此开始 ;计入钢筋混凝土材料的弹塑性性质后 ,斜板桥的极限承载力明显高于线弹性分析结果。
According to the model test study and simulating analysis by computer,the response of the R.C.integral skewed slab bridges under the concentrated loads up to failure are presented.Analysis indicates that the cracks of the simply supported skewed slab bridge are always operated at the midspan near the edge,the area at the midspan near the edge and the obtuse angle region is severe in bending moment and torsional moment,the failure of the slab begins at these regions.The ultimate strength of the skewed R.C. slab bridge considering the material nonlinearities is higher than one that calculated by linear analysis.
出处
《西安公路交通大学学报》
CSCD
北大核心
2001年第4期46-49,共4页
Journal of Xi'an Highway University
