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对粘钢加固钢筋混凝土梁的一次、二次受力情况进行试验研究及有限元数值仿真模拟分析。结果表明:粘钢加固钢筋混凝土梁能有效提高梁的承载力,一次受力情况下承载力的提高优于二次受力;随着粘贴钢板胶层厚度的增加,钢板的应变滞后明显。
Experimental research and finite element numerical simulation analysis of primary and secondary stress of bonded steel reinforced concrete beams. The results show that the steel beam strengthened by sticking steel can effectively increase the bearing capacity of the beam, and the bearing capacity is better than the secondary force under the condition of a stress. The strain hysteresis of the steel sheet is obvious with the increase of the thickness of the glue layer.