| Seismic intensity is an important indicator to measure the level of earthquake's influence strong or week, and is also an important basis for estimating earthquake casualties and economic losses. With the changes in building forms and qualities, intensity scales, which is the standard for division of domestic and international seismic intensity, are continually revised. To hold the similarities and difference between existing seismic intensity scales which are often used at home and abroad, seismic data are used in this paper to study on comparison and analysis of seismic intensity scales. The major work completed are as follows:1. The evolution and current situation of seismic intensity scales both at home and abroad are systematically summarized.2. Based on the provisions descriptions of seismic intensity scales, seismic intensity scales at home and aboard are compared and analyzed respectively form the reaction of person's feelings and objects, damage situation of building structures, damage situation of lifeline, damage situation of ground, and ground motion parameter, etc. And the differences of different seismic intensity scales on the same level are given.3. Seismic intensity scales are compared on practical application by using seismic data of 1865 buildings of Dujiangyan city in Wenchuan earthquake and other seismic survey data.Finally, research works of this thesis are summarized. |
