Theoretical Analysis And The Dam's Dynamic Response Under The Function Of Temperature, The Seismic Load

China is rich in Hdropower resources, the theoretical potential of about 667 million KW,according to the latest survey results may be developing a capacity of 529 million KW,ranked first in the world, less than 20 percent of the development level. China's hydropowerresources of the 80 percent of the western region, especially the southwest. But dam area by a strong regional geological structure, the western hydropower development difficult avoidanceof high seismic zone. Earthquake and the seismic response of high arch dam structure is very complicated. So far, both at home and abroad to build strong earthquake in the high arch dam little experience in the engineering practice, without strong earthquake with the test case.Once suffered damage while the accident, the secondary consequences will be very serious disaster. The seismic safety of the high dam must be treated with caution, in the face of the lack of precedent in the new problems and challenges, it is urgent to establish seismic dam innovative ideas.The article expounds the massive concrete temperature field and stress field of the finite element simulation calculation theory and method, Combined with the theory and method, Using finite element software, Using the death of arch dam construction unit realize the dynamic process of casting layer, simulate the stable temperature field during the coupling thermal stress, through the sequence of temperature stress analysis corresponding。The calculation results of arch dam construction stage, the dam temperature by cement hydration heat immortality of heat, with short term rapid growth, the age of concrete temperature gradually spread to internal and external, at last to a steady temperature field。The results show that the temperature stress caused by temperature load stress of arch dam has certain effect, but is still in control scope.At the same time, this paper also through the research dynamic analysis and theoretical analysis, the seismic arch dam, to establish the model of modal analysis, By calculation results that empty library than full frequency of library。Using finite element method, the method of key research on temperature load under seismic load and dynamic response of the arch, Calculation results show that the arch dam temperature load under seismic load, the dynamic calculation results than only when the temperature of the static load calculation results, and in the power of the arch dam, when calculating compressive stress area and static calculations of compressive zone when no direct relation, and may appear.