An Efficient Algorithm for Multi-dimensional and Multi-point Random Seismic Response Analysis of Spatial Grid Structure based on Computer

Abstract

At present, the power spectrum method in the field of random vibration analysis, that is, to calculate the power spectrum of various responses from the given excitation power spectrum, has developed into a mature method. However, this method has not been widely used in engineering design in the past. The purpose of this paper is to study the efficient algorithm of multi-dimensional and multi-point random seismic response analysis of spatial grid structure. Firstly, the paper introduces the quick assessment of earthquake personnel loss from the aspects of the factors affecting the magnitude of earthquake disaster and the assessment process of earthquake personnel loss. Then, it further discusses the theoretical formula of multi-dimensional virtual excitation method, further extends the "virtual excitation method" to the multi-dimensional multi-point non-stationary random earthquake response analysis of spatial grid structure, gives the peak response estimation method, and discusses the multi-dimensional ground, the random model of vibration and the selection of parameters, the random seismic response of latticed shell structure is analyzed by special computer program. The experimental results show that the non-stationary random seismic response of the latticed shell is slightly smaller than that of the stationary random seismic response, with a ratio of about 0.9. The laws of the steady and non-stationary random vibration response of the latticed shell members are similar. IntroductionWith the continuous development of the times, the continuous improvement of social, economic International Journal of Multimedia Computing 70 and cultural level, and the progress of science and technology, how to effectively use the existing data and data, and apply new methods to improve the ability of the government and the earthquake department to respond quickly to emergencies and resist risks, and provide convenient and quick emergency rescue and related information for the masses is particularly important [1][2][3]. Earthquake disaster pre assessment software is a software system that integrates multiple disciplines, such as computer, geographic information system, global positioning system, monitoring system, earthquake disaster pre assessment system, statistical system, etc., integrates multiple data through network, communication and other channels, and provides earthquake emergency services and earthquake disaster pre assessment [4][5][6]. The earthquake disaster pre assessment software can effectively simulate the geological disaster, building collapse, lifeline engineering damage, casualties, economic loss and other disasters after the earthquake. According to the simulated disaster data, the pre disaster preparation work can be done, so that the disaster prevention and mitigation can be implemented, and provide more effective technical support for the post disaster leadership and organization of earthquake relief work [7][8][9]. Earthquake is a kind of emergency. Earthquake disaster often has the characteristics of stron...