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本文通过试验研究了粘钢板梁的结构性能和不同的加固方案对其破坏形式的影响。试验结果表明,粘钢板不仅能提高梁的承载力,还可提高梁的抗弯刚度.并可改善其抗裂性能。但是由于钢板端部存在着应力集中,粘钢板梁往往会在未达到其抗弯承载力时,就过早地发生剪切粘接破坏。此试验通过对几种不同加固方案的破坏形式进行分析和比较.提出了钢板锚固长度的概念.并给出了最佳的加固方案。
In this paper, the structural properties of the steel plate beam and the effect of different reinforcement schemes on the damage modes are studied experimentally. The test results show that the adhesive steel plate can not only improve the bearing capacity of the beam, but also improve the bending stiffness of the beam. And can improve its crack resistance. However, due to the stress concentration at the end of the steel sheet, the sticking steel sheet beam tends to shear and bond prematurely when it does not reach its bending capacity. This test analyzes and compares the damage patterns of several different reinforcement schemes. Proposed the concept of steel anchorage length. And gives the best reinforcement program.