钢筋混凝土矩形梁裂缝扩展机理研究

Analysis of crack propagation mechanism of reinforced concrete rectangular beams

钢筋混凝土矩形梁在上部荷载的作用下,下部受拉区因挠度过大易出现裂缝。基于Midas FEA细部分析软件,分析了矩形梁的受力状态、裂缝扩展顺序及带裂缝工作时的应力—应变关系,为设计人员在设计和计算钢筋混凝土矩形梁时提供一定的参考。

Under the action of the upper load,the lower tensile zone of the reinforced concrete rectangular beam is easy to crack because of the large deflection. Based on Midas FEA detailed analysis software,analysis the stress,crack extension sequence and the stress-strain relationshipwith cracks of rectangular beam. Provide a reference for the design staff in the design and calculation of reinforced concrete rectangular beams provide a reference.