带支撑钢构格栅坝在冲击作用下的应力分析

Stress analysis of steel grille dam with brace under the shock load

就带支撑钢构格栅坝结构模型,利用非线性有限元软件ANSYS/LS-DYNA进行数值模拟。用钢球模拟巨石冲击作用于格栅坝体,分析在冲击荷载作用下结构的应力分布。结果表明:带支撑钢格栅坝能有效减小结构各单元应力,可使支撑作为耗能构件消耗冲击作用能量。该结果为泥石流拦挡工程中带支撑钢构格栅坝的设计提供了参考。

Steel grille dam with brace was simulated using nonlinear finite element software LS-DYNA.Steel balls was used to simulate the stone, impact load is respectively setded in the dana,analysis the stress response of structure under the shock load.Results show that the stress of the structure unit can effectively reduce when brace is decorated in the steel grill dam,the brace can be energy consumption component.The research results provide reference information for the design of steel grille dam in debris flow block engineering.