Seismic Damage Prediction Method of Reinforced Concrete Frame Structure in Mountain Towns Considering Concrete Age

Abstract

Seismic damage of reinforced concrete frame structure is closely related to factors such as structure plane and elevation size, concrete strength, topography, site condition, fortification intensity and updating code articles. And concrete age has obvious influence on concrete strength. In order to establish a scientific and reasonable seismic damage prediction model of reinforced concrete frame structure in mountain towns, according to the elastic-plastic design response spectrum theory, the factors such as the stiffness mutation of structure plane and elevation, mountain topography, construction quality, concrete age and so on have been focused on, and the parameters such as the structure plane and elevation size, site conditions and seismic fortification intensity have been considered. The prediction formula of structure seismic damage based on ductility rate has been established. The established seismic damage prediction model is verified by using the seismic damage example of Yushu earthquake in China in 2010. The results show that the established prediction model has certain accuracy.