型钢布设方式对型钢混凝土闸墩工作性能的影响研究

为了确定型钢混凝土闸墩结构内最优的型钢布设形式,利用ANSYS软件对闸墩进行有限元数值计算分析。基于两种不同计算工况下3种不同数量型钢布设方式所得到的有关型钢位移、闸墩裂缝范围、闸墩应力以及型钢应力的计算结果,得出型钢布设根数为3根时各方面工作性能均较优。在此基础上继续研究型钢布设角度和长度对闸墩工作性能的影响,最终得出在3根型钢布设时,型钢之间的夹角为12.5°、型钢长度为一长两短的布设方式最为理想。研究成果可为型钢混凝土闸墩结构的设计提供理论支撑。

Influence of profile steel layout on the performance of steel reinforced concrete piers

In order to determine the optimal layout of profile steel bars in a steel reinforced concrete pier structure, the ANSYS software was used to perform finite element numerical calculation and analysis on the pier. Based on the calculation results of steel bar displacement, pier crack width, pier stress and steel bar stress obtained under two different calculation conditions and three different layout methods, it is concluded that when the number of profile steel bars is three, all aspects of working performance are better. On this basis, the influence of profile steel layout angle and layout size on the working performance of the pier was further studied. Finally, it is found that in the layout pattern of three steel bars, the optimal layout method is to set the angle between the steel bars to 12.5°, and choose two short and one long bars. The research results can provide theoretical support for the design of steel reinforced concrete pier structures.