The Interaction Analysis Of The Middle-high Multi-ribbed Composite Wall-shear Wall Structures And Pile-raft Foundation And Soil

Composite structure of multi-ribbed composite walls and shear walls is a new kind of resistant structural.This kind of structure has many advantages of multi-ribbed slab structure,moreover, its resistant system and seismic performances are improved by substituting some multi-ribbed composite walls for R.C shear walls.Some works are achieved in the theoretical study and engineering application. Some works are still being paid close attention in the interaction of structure and pile-raft foundation and soil.Based on the previous study, differences of the interaction are analyzed in the dissertation. And the analyses of interaction in mixed structure and foundation are achieved.The main studied is as follows:1. The method of D-P model is used in this paper to analyze the interaction of structure and pile-raft foundation.Couples superstructure and raft on elastic-plastic ground through substructure technique,the interaction of superstructure and pile-raft and ground are analyzed with ANSYS.Then the mechanics characteristic of multi-ribbed composite walls and shear walls and foundation soil is summarized.The distribution of pile-raft stress and the foundation settlement laws are also observed.2. Analyses are given in the interaction of multi-ribbed composite walls-shear walls structure and R.C shear walls structure.Some conclusion are achieved that multi-ribbed composite walls-shear walls structure is better to the R.C shear walls structure.3. From analyzing the effect of raft concrete strength,raft thickness,pile length,pile diameter on pile-raft foundation,differences of stress in structure,pile-raft and load ratio between pile and soil are achieved.4. With considering the interaction or not,the design method of multi-ribbed composite walls and shear walls is improved and some advices are given in the paper.