为了为工程提供非线性的地面反应分析的适当使用,练习,有一个分布式的集体系统的三维的土壤列和一个时间领域数字分析在 OpenSees 模拟站台上被实现。三维的土壤列的标准网孔被建议对指定最大的频率满意。因为土壤性质是显著地不同的,分层的土壤列根据 shear 速度与一个不同粘滞的抑制矩阵被划分成多重心土。使用另外的一个维或三维的非线性的地震地面分析程序的联合证实非线性的地震地面运动反应分析的适用性是必要的在软土壤或为强烈地震的过程。三维的土壤列的精确性有限元素方法被动态离心机模型在地震的不同山峰加速下面测试验证。作为结果,非线性的地震地面运动反应分析过程在这研究被改进。三维的地震地面反应分析的精确性和效率能被使适应设计实践的要求。
To provide appropriate uses of nonlinear ground response analysis for engineering practice, a three-dimensional soil column with a distributed mass system and a time domain numerical analysis were implemented on the Open Sees simulation platform. The standard mesh of a three-dimensional soil column was suggested to be satisfied with the specified maximum frequency. The layered soil column was divided into multiple sub-soils with a different viscous damping matrix according to the shear velocities as the soil properties were significantly different. It was necessary to use a combination of other one-dimensional or three-dimensional nonlinear seismic ground analysis programs to confirm the applicability of nonlinear seismic ground motion response analysis procedures in soft soil or for strong earthquakes. The accuracy of the three-dimensional soil column finite element method was verified by dynamic centrifuge model testing under different peak accelerations of the earthquake. As a result, nonlinear seismic ground motion response analysis procedures were improved in this study. The accuracy and efficiency of the three-dimensional seismic ground response analysis can be adapted to the requirements of engineering practice.