【摘要】 应用有限元法对腹板中心开圆孔钢梁的性能和极限承载力进行了研究,并用其它学者所做的试验加以验证。由有限元计算所得的极限荷载、破坏特征以及荷载变形关系与试验结果比较接近。研究表明,在孔洞周边设置加劲肋对孔进行加强可以显著改善这类梁的承载性能。更多还原

【Abstract】 A finite element model to predict the behavior and ultimate load of steel beams with circular holes in web is presented. The ultimate load values, characteristics of failure and load-deflection relationships show good agreement between the finite element and experimental results obtained by other researchers.The study shows that strengthening the holes with the stiffeners around them can improve the behavior of such beams greatly.更多还原