IIn order to study the mechanical properties of ultra-high performance concrete in shear wall structure,relying on a construction project in Cangshan District,Fuzhou City,the mechanical properties of ultra-high performance concrete shear wall such as deformation characteristics,ductility characteristics and fatigue characteristics of ultra-high performance concrete shear wall were studied by using experimental analysis method to apply loads to ultra-high performance concrete composite shear wall and ordinary concrete shear wall.The results show that:The load-displacement curve of UHPC shear wall specimens has three stage characteristics:elastic stage,elastoplastic stage and failure stage,and the elastoplastic characteristics are obvious and the energy dissipation capacity is superior,while the failure stage of ordinary concrete specimens is not obvious.The bearing capacity of UHPC composite concrete shear wall specimens is comparable to that of ordinary concrete shear wall specimens,but the positive ductility coefficients,negative ductility coefficients and average ductility coefficients of UHPC composite shear walls are increased by 22.4％,5.8％and 9.7％,respectively.The stiffness degradation process of the two-shear wall specimens is divided into rapid degradation stage and slow stabilization stage,and the fatigue resistance of UHPC is improved compared with that of C25 concrete components,but the improvement effect is not significant.
万方数据
维普
