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Simulation of Non-stationary Correlated Ground Motion and Survey and Analysis on Seismic Damage of Structures in the Wenchuan Earthquake

Author: LiuGuoXing
Tutor: YangQingShan
School: Beijing Jiaotong University
Course: Disaster Prevention and Reduction Engineering and Protective Engineering
Keywords: Ground motion Ground motion Earthquake ground motion simulation VC software development Wenchuan earthquake Dujiangyan Building damage Damage characteristics
CLC: TU352.1
Type: Master's thesis
Year: 2009
Downloads: 143
Quote: 0
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Abstract


The essence of the earthquake disaster, civil engineering disaster caused by the destruction of the main carrier of the earthquake disaster, civil engineering means is the primary means of disaster prevention and mitigation. In order to ensure that the structure has enough ability to withstand an earthquake disasters during use, we must grasp the dynamic response of the structure in certain seismic loads. The development of large-span structure seismic analysis methods require deterministic ground motion input mode simulation of ground motion parameters have certain characteristics and meet the specific site conditions and the spatial correlation of ground motion is necessary. Zhang Jin developed written works for Yang Qing Shan, Tian Yuji earthquake ground motion simulation \Due to the adjustment of the core calculation procedures, in order to make the software is stable, easy to operate, so the development of the \The Wenchuan earthquake suddenly occurred May 12, 2008, causing huge losses. Laws of building damages in order to understand the lessons learned, especially for disaster recovery and reconstruction and norms revised to provide useful recommendations, conducted a survey of the the Dujiangyan building structure analysis, draw some important conclusions. Writing this article from the ground motion characteristics and the development and research of synthetic analog ground vibration problems to be solved in this research field, the significance of the Wenchuan earthquake disaster damage investigation. Chapter II non-stationary characteristics of ground motion from the phase difference spectrum and phase derivative, based on the phase difference spectrum of ground motion and reaction pattern fitting, related to the spatial variability of ground motion, spatial non-stationary earthquake ground motion simulation IV The theoretical basis of aspects nonstationary earthquake ground motion simulation was introduced. The third chapter explains the increase in the Help menu, solve the program run unstable, part of the generation method and adjust the model parameters, improved graphics display functions. Software installation, operation and operation to do a brief description with screenshots. Also gives the typical non-stationary earthquake ground motion generated steps, and the National Stadium, for example, the simulation of earthquake ground motion. Chapter statistical analysis of a large sample of data, post-earthquake building damage expedition work methods and content, and expedition of the site with the election; summarize the evolution of the seismic performance of building structures of different periods and the extent of the damage correlation with the seismic code of different periods, different structural forms of the seismic performance differences, the different layers of the structure and the extent of the damage the relationship, and to analyze the reasons; concluded a wide variety of engineering structural damage characteristics of the earthquake and its The causes of analytical thinking.

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CLC: > Industrial Technology > Building Science > Building structure > Special Structure > Anti - shock structure,disaster prevention structures > Shock, isolation, and explosion-proof structure
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