Experimental Study On Shaking Table Test Of A Raw-soil Building Model In Kashi, Xinjiang

The old city in Kashi is one of national historical and cultural cities in China. It is concentrated many raw-soil constructions, which are mainly used for residence. These raw-soil buildings are vulnerable to destruction by earthquake because of low strength and poor structural integrity. In order to improving the seismic capacity of them, some strengthening measures should be carried out. The objective of this project is to propose and evaluate the strengthening measures through shaking table test of a 1/2 scale model of typical prototype building in Kashi. It is significant for protection of people's lives and transition of cultural heritage.Based on field investigation, this paper introduces the actuality of local raw-soil buildings, and selects an experimental model from them. Aimed at shortages in earthquake resistant, various types of strengthening measures are taken to the model. Through shaking table test, this paper analyzes the failure phenomena and mechanisms, then studies the trend of natural vibration frequency and damping ratio, and other dynamic responses of the model, such as acceleration,displacement and dynamic crack. The results demonstrate the effectiveness of the adopted strengthening measures.This paper also does some relevant theoretical research on the base of experiment,, including: the calculation of seismic capacity of model and prototype with and without strengthening measures; the finite element analysis and the results comparison to experiment. Furthermore, this paper analyzes construction cost of the prototype, the result shows that the increased cost with strengthening measures is acceptable to local dwellers.