Seismic Response Analysis Of Long Reticulated Shell Structure

The earthquake followed complicated ground vibration, so the super-long structure inaseismic analysis only considering unidimensional and single point input cannot meet therequirements. In the process of transmission because of the difference of geologicalconditions and the length of the different structure, the time of seismic wave arrival isdifferent, which need to consider the seismic traveling wave effect.In this paper, based on the above issues, analyzing the long net shell structureconsidering traveling wave effect of the multidimensional multipoint input seismic, weobtain the following results: Based on the large finite element analysis of software Ansysto6kinds of different lengths of single-layer cylindrical reticulated shell, we calculate therelation between the structural fundamental frequency and length as well as the naturalfrequency vibration intensity and the relationship between the natural order.In this paper, through studying the net shell structure internal force and dangerouspole number,it is found that under certain apparent wave velocity, with the increase oflength of reticulated shell structures respectively under the consistent input and multipointinput results obtained obvious difference. According to the structure of the obtained themost unfavorable principles, we get the reticulated shell minimum length that shouldconsider more input seismic analysis. In the study of multidimensional multipoint inputlong net shell structure, the traveling wave effect is one of the most important factors of all.This article analyzes4different apparent wave velocity and examines the traveling waveeffect on super long single-layer cylindrical reticulated shell.