Study on seismic disaster risk distribution of buildings in mainland China
Sun Baitao1，2 Zhang Guixin1，2
1. Institute of Engineering Mechanics, China Earthquake Administration， Harbin 150080, China；
2. Key Laboratory of Earthquake Engineering and Engineering Vibration， China Earthquake Administration， Harbin 150080， China
Abstract：Macroscopically mastering the distribution and the situation of seismic capacity of buildings in China is of great importance. It plays an essential role in government-directed construction planning, seismic strengthening of buildings and enhancing the public′s awareness of disaster prevention prior to the occurrence of earthquakes. Besides it can guide the earthquake emergency response, loss assessment, and so on during earthquakes. In this study, a large-scale sampling survey on the seismic capacity of buildings across the mainland China is carried out. On this basis, the correlation of the seismic capacity of buildings in different regions with many factors such as the economy, land use, seismic fortification levels, population density, and level of administrative division is studied. Meanwhile, a comprehensive division and classification method for demonstrating seismic capacity of buildings in mainland China was proposed. By using the prediction method for seismic damages to building groups, seismic vulnerability matrixes of buildings with different structures in various regions were established based on the seismic damage data and the earthquake prediction data. In addition, the seismic disaster risk and loss distribution maps of buildings in mainland China under the earthquake actions with basic intensity were drawn on the basis of the GIS software and the stocks of buildings with different structures in various regions. A whole thought and method for seismic disaster risk and loss evaluation of buildings in different regions were proposed, which could provide references for the further studies on the distribution of the seismic disaster risk loss of lifeline engineering and casualties.
孙柏涛 张桂欣 . 中国大陆建筑物地震灾害风险分布研究[J]. 土木工程学报, 2017, 50(9): 1-7.
Sun Baitao Zhang Guixin. Study on seismic disaster risk distribution of buildings in mainland China. 土木工程学报, 2017, 50(9): 1-7.
