Further Study of Average Damage Ratio and Seismic Capacity Comparing of Non-Engineered Building in Seismogenic Zone Provinces in China

China is one of the countries with the most serious earthquake disaster in the world. Buildings damaged and collapsed caused by earthquakes are the main reason of the economic loss and casualties. Most of non-engineered buildings are self-built houses, which occupy a considerable proportion in damaged buildings during earthquakes. It is significant to statistic and to analyze these house damage data in former earthquakes for the seismic capacity evaluation of the non-engineered buildings. The main types of non-engineered buildings are wood house, earth and wood house, brick and wood house, and brick masonry house. It is the seismogenic zone provinces for Xinjiang, Qinghai, Gansu and Yunnan in China. Based on the four type houses in the four provincial regions. The article focused on the 105 reports of earthquake disaster selected from 1990 and 2013. And then the article demonstrated that the average damage ratio of different house types in these four provincial regions. Through the comparing of the average damage ratio of the same house types in the four regions, it is clearly to understanding the seismic capacity of these types of non-engineered buildings in the different regions.