Seismic Response Analysis And Practice Of Lattice Shells Under Multi-dimensional Earthquake Excitation

Reticulated shell structures as a three-dimensional space, and three-dimensionalforce characteristics under load, by reasonable force, low cost, light weight and shapediverse structure of the many advantages and is widely used in gymnasium, exhibitionhall waiting room and sports buildings and public buildings. These buildings aremostly staff-intensive and frequent movement of places, in the event of earthquakecaused structural damage, it will be painful consequences of irreparable importance ofseismic analysis of reticulated shells.In this paper, on the basis of research results to a middle school gymnasiumengineering background, using ANSYS structural analysis programs, using theresponse spectrum and time history analysis method to the seismic response analysis,the upper part of the Stadium network shell seismic response of the law.First introduced the seismic analysis of reticulated shells, the largegeneral-purpose finite element analysis software ANSYS, the gymnasium of the upperpart of reticulated shell structures and the overall structure of modal analysis, thesubspace iteration method to calculate the upper latticed shell of the gymnasium andthe overall structure of the natural frequencies and mode shapes in order to study itsdynamic characteristics.Finally, the ANSYS program is on the upper part of the reticulated shell structureand the overall structure analysis of the response spectrum analysis of time. In theresponse spectrum analysis, analysis of structure in the horizontal direction, verticaldirection and under the joint action of the horizontal and vertical dynamic response; areticulated shell structures and the overall structure of the nodes around the shockwave under the upper displacement time history analysis time curve, displacement,and seismic design of structures for the class to provide a reference.