Seismic Response of Shear Distortion Type Buildings

Abstract

A plastic hinge joints method is used to estimate the seismic nonlinear response of shear distortion type struc- tures or large panel buildings. For consideration of interaction of building with the soil there is considered a complex model of soil-interface-building system containing soil in the form of isotropic half-space and building connected to each other in the zone of contact by non-elastically deformable hinge nodes. The large panel building is represented by a spatial system of plane stressed elastic structural members - wall panels and panel slabs coupled in discrete nodes by nonlinear zero length hinged connections. 3D nonlinear dynamic analysis of the soil-interface-building system is carried out by the substructures method using an implicit time integration scheme. There is given an example of a five story panel building with wide spacing 7.2-8.4 m. This study has taken into account the stochastic nature of the ground motion in Tbilisi re- gion. The calculated values of response parameters at different levels of peak ground acceleration indicate that the reliabil- ity of the new generation panel building is satisfactory.