Study on Bending Performance of Steel Wire Rope Caulking Reinforced Brick Masonry Structure
In order to improve the bending resistance and overturning resistance of historical brick masonry buildings while retaining the original style,the technology of wire rope caulking and reinforcement of brick masonry is proposed.By using a pressure testing machine to conduct bending tests along the joint section of masonry structures,the surface strain field of the masonry structure was obtained using digital image correlation method(DIC),and the failure mode and load displacement curve of the specimens were analyzed.The stress characteristics and collaborative working mechanism of steel wire rope joint reinforcement brick masonry structures under load were studied,and a numerical model of the bending specimens was established based on the experiments.The results show that the steel wire rope joint reinforcement can establish effective interlayer connections in masonry,constrain brick masonry horizontally and vertically,and maintain the integrity of the masonry.After reinforcement,the bending resistance of the masonry structure was significantly improved,and the bearing capacity was increased by 26%and 46%by embedding 2 mm and 3 mm wire rope,and the deflection corresponding to the peak load was increased by 51%and 77%,respectively,and the brittle failure characteristics were improved.This method can be used for masonry reinforcement and renovation projects that require preservation of appearance in urban renewal.
bent masonrywire rope caulking reinforcementstrain fieldnumerical modeling
万方数据
维普
