Study On Shear Behavior Of Wall In Wall Frame Wall

Wall-format shaft hole wall structure system is a kind of new structure system to resistearthquake, which is recently developed in our country. Previously，most of the multi-storeyand amall high-rise building in our country take the structure of shear wall constitute ofreinforced concrete. However, there are many problems which are difficult to solve. Forexample, its large structural stiffness, its large dead weight and its serious earthquake reaction.In addition, parts of the wall prone to brittle failure, especially the wall between the windowin the outer wall, due to the different stiffness and Shear compression ratio of the wall. Thestructure effect of the hole in the wall is complex. It’s neither plate structure, nor trussstructure, so its stress distribution is not uniform. Wall-format shaft hole wall structure systemcan not only overcome some shortcomings such as the convex of column in the framestructure and the general shear wall with a small hole and its large dead weight, but also it is akind of the ductile bending-shear failure structure. So for multilayer and small high-risebuilding, it is recommended to use wall-format shaft hole wall structure system, thus reducingthe earthquake action, to avoid brittle failure and save material.As an important component in the Wall-format shaft hole wall structure system,wall-format shaft shear wall plays a key role on the shear capacity of the whole system.Wall-format shaft shear wall refers to cut across ratio greater than2and the shear walldepth-thick ratio is2~5. Because of its small depth-thick ratio, the mechanical performanceand cross-sectional design in compliance with the shear wall relevant provisions shouldaccord to frame column design. And because the design code of the wall-format shaft shearwall structure is not perfect, its shear bearing capacity and non-deformability is not only forthe need of engineering design, but also for the perfection of the rules to provide certainreference. Therefore, the studying of wall-format shaft shear wall has important practicalvalue and theoretical significance.This paper mainly studies the shear bearing capacity and non-deformability of thedepth-thick ratio, axial compression ratio, concrete intensive grade, stirrup ratio, also providessome suggestions for engineering design. In this paper, the specific contain of research asbelow: (1). First we introduced the wall-format shaft hole wall application and development ofthe structural system and its advantages and disadvantages, the constitutive relation andparameters of yield criteria of concrete, the influencing factors of shear bearing capacity andductility coefficient, also a brief introduction to the finite element analysis of reinforcedconcrete structures.(2). In the case of concrete intensive grade, axial compression ratio and stirrup ratio,changing the size of the depth-thick ratio to find the relation between the size of thedepth-thick ratio obtains and its shear bearing capacity.(3). In the case of concrete intensive grade, depth-thick ratio and stirrup ratio, changingthe size of the axial compression ratio to find the relation between the size of the axialcompression and its shear bearing capacity.(4). In the case of depth-thick ratio, axial compression ratio and stirrup ratio, changingthe size of concrete intensive grade to find the relation between the size of concrete intensivegrade and its shear bearing capacity.(5). In the case of concrete intensive grade, axial compression ratio and depth-thick ratio,changing the size of the stirrup ratio to find the relation between the size of the stirrup ratioand its shear bearing capacity.