Considering The Building Ground-raft Foundation-the Upper Structure Dynamic Interaction Vibration Calculation Method About The Frame Structure On The Mountain

China is between the western Pacific seismic zone and the Mediterranean Sea-Himalayan seismic belt, is a country of many earthquakes, more than four thousand years historical records show that the vast majority of areas in China, which have had a larger magnitude of destructive earthquakes, especially in recent years in southwest China earthquake has happened frequently, the earthquake in our country has brought great economic losses and casualties.China is a mountainous country, mountainous region accounts for about two-thirds of the country’s territory.Due to the lack of the ground, the local economic development and life have been affected,local people build buildings on the hillside,but the slope height have a considerable amplification effect on the seismic action,buildings on the top of mountains will suffer a greater destruction. At present, the research on the stress state of building under the condition of the earthquake on the hillside is very less.In this paper, on the basis of previous research results, using shear wedge method, elastic foundation beam method,mode superposition method, finite element method and numerical integration method to analysis the stress state of the buildings on the mountain and on the ground under the condition of the earthquake,and comparing the analysis conclusion. The conclusion is as follows:(1) The slope height have a considerable amplification effect on the seismic action,buildings on the top of mountains will suffer a greater destruction, the greater the slope, the higher the seismic action.(2) The building on the slope,the maximum bending is in the middle of the pile; the building on the ground,the maximum bending is in the middle of the pile up a bit; in both cases, the characteristic of bending moment distribution is that big bending moment in the middle and small bending moment at both ends.(3) The lumped mass model and plane bending model is reasonable and applicable in the structure stress analysis under the condition of the earthquake; the adoption of the two models greatly simplifies the complexity of the calculation model, reducing the amount of calculation, reduces the calculation difficulty.(4)Elastic foundation beam method,shear wedge method,finite element method,modal superposition method,numerical integration method and a variety of basic assumptions are applicable to the buildings on the slope of various height or composed of various materials under the earthquake.