T-shape Steel Short Shear Wall Low Week Repeatedly Load Experimental Study

The short shear wall is refers to the wall extremity section and ratio of the width is 5～8 shearing force wall highly.The Special-shaped Column applies in multi-layered or in the high-level housing process,because of the limit of component axial Compression Ratio or the stiffness,we often must raise the tall wall extremity section the altitude,causing ratio of the wall extremity section width and the section high is bigger than 4,forms the Short Shear Wall component.The Short Shear Wall is in fact comes by the Special-shaped Column development,regarding The Short Shear Wall, the present research mainly concentrates in the structure whole computation theoretical side,little is not systematic regarding component's earthquake resistance performance's research,many research to the Special-shaped Column column component is also quite systematic,The Short Shear Wall and the Special-shaped column have the characteristic of section and the reinforcing bars asymmetrical,comparatively,the influence to The Short Shear Wall of this kind of dissymmetry is bigger than the Special-shaped column.The T-shape section is one kind comparison representative of section form in the short Shear Wall.Discovers to the T shape Short Shear Wall experimental study,in along the axis of symmetry direction reciprocation load function, the reinforcing bars to section is asymmetrical,the component has big difference when the flange side is pulled,bearing bearing capacity,the ductility and the destruction form.The flange is pulled when the supporting capacity is often bigger than when the flange bearing the supporting capacity,however the ductility actually by far is smaller than the latter.In order to solve the supporting capacity,the ductility not symmetry and in the web plate bearing time destroyed for the brittle question of T-shape short Shear Wall, this article put forward the concept of Steel Short Shear Wall,namely in web plate nose establishment section dark column.Has revelationed the Steel short shear wall destruction shape repeatedly through the low week load experiment.The test result indicated:the steel short shear wall's supporting capacity and the ductility have the remarkable enhancement,disposes the section,after suitably stagnates the hysteretic Curve close symmetrical,component's overall performance has the distinct improvement.This article prime task includes:1.Proposed the T-shape short shear wall causes the question solution as a result of the dissymmetry,in the web plate nose disposition section,causing its mechanical properties to be as far as possible symmetrical.2.Summarized the mechanical model of the short shear wall structure,has analyzed this kind of structure destruction mechanism,to carry on the system test to the section concretes short extremity shearing force wall to analyze the guidance function,structure mechanical model,has analyzed this kind of structure destruction mechanism,to carry on the system test to the section concretes short extremity shearing force wall to analyze the guidance function.3.Has made the induction summary the topic-based group correlation testing, introduced this experimental goal,the test sample manufacture,the load process in detail and so on a series of questions.4.In the foundation of this test result and the topic-based group have completed experimental,to do the analytical study of the test sample destruction characteristic, the supporting capacity,the ductility and hysteretic Curve.