| Due to the limited construction area for residential use, a large number of buildings need to build on the slope of foundation in the modern city construction in our country. The investigation of slope to interaction of superstructure and foundation with rock slope subgrade is an important practical subject. In conventional design, the superstructure as the bottom of the column in the form of fixed constraint, and analyze the independent, does not consider the interaction among the superstructure, foundation and slope foundation, there is a big discrepancy between the actual on force and deformation, such easy to cause the designed not safe or not economic. This paper summarizes some research methods and results on the interaction among the superstructure, foundation and slope foundation of domestic and aboard. This paper combines theoretical analysis with numerical simulation, further explore the dynamic interaction of rock slope foundation and superstructure and foundation are carried out, the main work and conclusions are as follows:①Paper mainly studied the frame shear wall structure, strip foundation with the combination of the mechanism of rock slope and the finite element theory of each part. Then mainly analyzes the basic model of slope and slope unit simulation and finite element principle and dynamic model of rock slope is expounded.② The paper studied the finite element model of the frame shear wall structure dynamic analysis method, mainly from the upper frame shear wall structure dynamic analysis model which is established and the assumption, the natural vibration characteristics, orthogonal condition and seismic response solution. Spring element was introduced in the dynamic analysis of rock slope is used to simulate the viscoelastic boundary.③ In the Static conditions through the upper frame shear wall structure under different rock mass, strip foundation, and the combination of rock slope foundation by foundation settlement analysis contrast, get some numerical simulation results. The higher the strength of rock mass foundation settlement, the more uniform, the smaller the differential settlement. The higher the strength of rock mass, The smaller of foundation deformation. By finite element numerical simulation of the upper layers of the building difference comparison analysis of the vertical displacement, get some instructive conclusions of practical project. The more general upper layer, The bigger of foundation stress, the greater the basis of inequality and settlement with the increase of the layer number and aggravate.④ In the Dynamic situations through the rigid constraints of the upper frame shear wall with frame shear wall, strip foundation and upper rock slope under the joint action of the difference between the comparison and analysis of lateral displacement of the top two, shows that the deficiency of traditional design method Through calculating natural vibration period, determine the interlayer displacement and the angle of structure, ready for the rest of the time history analysis.⑤ With the different slope rock mass, slope distance and architectural layers of the upper frame shear structure- strip foundation- rock slope foundation has carried on the combination of dynamic analysis, obtained the conclusion of some reference for relevant engineering practice: Among them, the cases of different rock dynamic interaction analysis showed that the higher the strength of rock mass, the corresponding upper structure at the top point of the lateral and the direction of the slope on the point of applying seismic action to significantly reduce the displacement. Under the condition of different slope distance, the upper structure as close to the slope, the seismic action in the greater the displacement and stress of the slope. Different layers of construction conditions, the influence of seismic action mainly lies in the horizontal direction of slope displacement and stress. The more architectural layers, the more the earthquake effect caused by the greater the horizontal displacement and stress of slope, it is crucial to the slope stability. |
