尹新生,曹展硕,蔡婧娓
不同约束作用下混凝土构件局部受压的力学性能分析
尹新生,曹展硕,蔡婧娓
摘 要:采用对比分析的方法,分别讨论了素混凝土构件、加入钢筋网片的混凝土和加入预应力钢绞线的混凝土局部受压破坏时裂缝分布情况以及极限承载力。结果表明,钢筋网片试块的用钢量要远高于预应力筋,而且预应力筋试块在形成拉压杆体系后,极限承载力可以大幅度提高。
Abstract: The distributions of cracks in concrete and the ultimate bearing capacity under local compression in plain concrete member, concrete with the mesh reinforcement and concrete with prestressed steel strand are discussed using the comparative analysis method. The results show that steel consumption in the reinforced specimen block is much higher than that in the prestressed reinforcement, and prestressed reinforcement test block in the formation of tension and compression strut system, ultimate bearing capacity can be increased greatly.
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