When HRB500 steel bars used as stirrup, the reinforced concrete beam may appear so oversized diagonal crack that it can't satisfy the engineering requirements for applicability and durability.
应用HRB500钢筋作为抗剪箍筋，可能会出现过宽的斜裂缝而不能满足结构的适用性和耐久性的要求。
2
Calculating the continuous beam, frame of single-span and multi-story by deflection method, the stiffness matrix is symmetrical three-diagonal.