Experimental Study In Performance Of Resisting Shear For Block Masonry Shear Wall

The block masonry shear wall which combination with Structural column and stem of concrete core columns is a new type of load-bearing walls of body structure which is promoting to use now. The new masonry structure is mainly used to solve its own problem of inadequate shear capacity. Along with the gradual implementation of the policy of prohibiting the use of clay brick, concrete masonry has been vigorously promoting and applications. However, due to China's major large cities are at the earthquake-prone zone, it is the main obstacle to development the concrete masonry structures to large cities that its lack of seismic performance of masonry structures. The Block Masonry Shear Wall which combination with Structural column and stem of concrete core columns could effectively solve the problem of insufficient shear strength, and forceful promoted the promotion and development of masonry structures.In order to research the block masonry shear wall which combination with structural column and stem of concrete core columns, this text acquire the key data on the shear performance of rigidity after in the low cyclic loading tests carried out under static study with six walls. And through the wall between the different parameters in compared and analysis and discussion on height to width aspect ratio, horizontal steel bars, wall openings and other factors on the shear performance of reinforced masonry structures.If walls has horizontal-einforcement, the wall which height to width aspect ratio is 1.4 bearing capacity of resisting shear raise percent 30.95 to the wall which height to width aspect ratio is 2.0; and if walls hasn't horizontal-einforcement, the wall which height to width aspect ratio is 1.4 bearing capacity of resisting shear raise percent 26.4 to the wall which height to width aspect ratio is 2.0. If walls'height to width aspect ratio is 1.4, the wall which has horizontal-einforcement bearing capacity of resisting shear raise percent 18.5 to the wall which hasn't horizontal-einforcement; If walls'height to width aspect ratio is 2.0, the wall which has horizontal-einforcement bearing capacity of resisting shear raise percent 14.6 to the wall which hasn't horizontal-einforcement. If the wall has a hole, the wall which has horizontal-einforcement bearing capacity of resisting shear raise percent 14.6 to the wall which hasn't horizontal-einforcement. Test and analysis showed that: The Block Masonry Shear Wall which combination with Structural column and stem of concrete core columns can greatly improve the defects of resisting shear of masonry structures.This article proposed the method of calculate the structural columns - reinforced concrete core columns based on the calculation of reinforced concrete block masonry and design of the status of the theory. And this text offered the reference for promotion and development of masonry structures.