【摘要】 爆破地震波荷载不同于构造地震波荷载。本文采用ANSYS有限元分析程序,分别对爆破地震波作用下框架结构在考虑基础固结及考虑地基基础协同工作两种情况进行了空间对比时程分析;并针对协同工作体系,研究了其在爆破地震波和构造地震波作用下的动力特性。分析结果表明:基础固结模型的位移响应较之协同工作模型要小得多,但其内力响应却有所增大,局部还存在突变的情形;此外还得出了两种波作用下结构的动力反应存在较大差异。更多还原

【Abstract】 Blasting seismic wave loads are different from constructing seismic wave loads.The spatial time-history contrastive analyses are conducted for the frame structure,which considered by coordinated action model and foundation fixed model under the blasting seismic wave by adopting the FEA program ANSYS,respectively.In addition,the dynamic property for the coordinated action system under the blasting seismic wave and constructing seismic wave is investigated,respectively.The results indicate that the displacement response of the foundation fixed model is much smaller than that of the coordinated action model,however,the former internal force response is much larger than the latter,and the local singularity situation is come into being.Furthermore,the seismic responses induced by two kinds of seismic waves are very distinctive.更多还原