Study On Interaction Performance Of Soil Ground-Piled Raft Foundation-Shear Wall Structure

With the rapid development of the skyscraper in recent years, upper structure-the foundation-foundation interaction becomes the hot problem in theoretical research and project practice gradually. Because the heavier of whole structure and foundation's rigidity, the more not obvious like this interactive phenomenon is. So past much research all is aims at analyze this situation which the top is frame structure and foundation soil is soft soil, and the research is very few for upper structure which is pure shearing force wall structureIn past regular structural design, calculate upper structure simplify for bottom for fixed independent structure to prop up flat usually, do not consider the common truth that acts on among the upper structure-the foundation-ground. This design method has greater difference of actual structure's strength and deformation, make the structure designed partial to unsafely or uneconomically.This text is supported by structure in the actual project and basis of summarizing forefathers' research results, utilize the large-scale common finite element analytical software Sap2000 and traditional structure analytical software PKPM to set up reasonable finite element calculate models, make the following work:(1) Narrated the course that two kinds of models are set up in detail and the delimitation of artificial border, the interception of foundation range, the choosing of the unit, also described the situation of the concrete actual project, geological condition at the same time.(2) Have compared PKPM model with the difference, superiority of Sap2000 model.(3) Compared and analyzed the calculation result of consider interaction and not consider interaction, have obtained more satisfactory result.(4) To changing some parameters in the model of consider interaction, observe its influence on fruiting, and have carried on a series of analysis, comparison.