The dynamic soil-structure interaction of a shear wall embedded in elastic isotropic and homogeneous soil layers underlain by bedrock,subjected to SH waves,is modeled in the present article.The soil layers consist of ...The dynamic soil-structure interaction of a shear wall embedded in elastic isotropic and homogeneous soil layers underlain by bedrock,subjected to SH waves,is modeled in the present article.The soil layers consist of irregular interfaces and it has been shown that the scattering due to the roughness of the layers has significant effect on the displacement of both the foundation and the shear wall.To demonstrate the phenomena indirect boundary element method(IBEM)has been used on the basis of its validation in previous problems of similar type.The system response is compared with the analytical solution of the same type of model for vertically propagating incident SH waves.It is observed that for the low frequency of wave,displacement is abruptly high,and as a result the combination of shear wall and foundation perceives resonance.The thickness of the soil layer,mass of the shear wall,stiffness of the bedrock and the soil layers all affects the system frequency and displacement.展开更多
The present article investigates the physical phenomena associated with the wave passage effect into a building considering the ground floor as the soft floor with the conformity of the up-to-date scenario of the cons...The present article investigates the physical phenomena associated with the wave passage effect into a building considering the ground floor as the soft floor with the conformity of the up-to-date scenario of the construction of high rise buildings, due to shear excitation of the base. The aim of the study is to analyse the post-earthquake situation of the building in respect to its health. With this vision, the ensuing problem on two-dimensional building models, non-incorporating soil-structure interaction, is being tackled by both analytical and neural network approaches. Computational results from both ends (of the approaches) show that the wave energy does not always propagate from the ground into the building, but for lower frequency range it sails to the building without any disturbances. However, for higher frequency range, the computational results show that the building experiences large “torsional” deformations, as a result the building may collapse. Finally, both the approaches maintain a good agreement among themselves. The present investigation may lead to a long way in contributing to better and more rational, simplified design criteria.展开更多
文摘The dynamic soil-structure interaction of a shear wall embedded in elastic isotropic and homogeneous soil layers underlain by bedrock,subjected to SH waves,is modeled in the present article.The soil layers consist of irregular interfaces and it has been shown that the scattering due to the roughness of the layers has significant effect on the displacement of both the foundation and the shear wall.To demonstrate the phenomena indirect boundary element method(IBEM)has been used on the basis of its validation in previous problems of similar type.The system response is compared with the analytical solution of the same type of model for vertically propagating incident SH waves.It is observed that for the low frequency of wave,displacement is abruptly high,and as a result the combination of shear wall and foundation perceives resonance.The thickness of the soil layer,mass of the shear wall,stiffness of the bedrock and the soil layers all affects the system frequency and displacement.
文摘The present article investigates the physical phenomena associated with the wave passage effect into a building considering the ground floor as the soft floor with the conformity of the up-to-date scenario of the construction of high rise buildings, due to shear excitation of the base. The aim of the study is to analyse the post-earthquake situation of the building in respect to its health. With this vision, the ensuing problem on two-dimensional building models, non-incorporating soil-structure interaction, is being tackled by both analytical and neural network approaches. Computational results from both ends (of the approaches) show that the wave energy does not always propagate from the ground into the building, but for lower frequency range it sails to the building without any disturbances. However, for higher frequency range, the computational results show that the building experiences large “torsional” deformations, as a result the building may collapse. Finally, both the approaches maintain a good agreement among themselves. The present investigation may lead to a long way in contributing to better and more rational, simplified design criteria.
