【摘要】 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。更多还原

【Abstract】 Experimental research and the finite element numerical simulation analysis are used to analyze strengthening reinforced concrete beams by bonding steel in primary and secondary force condition.The results shows that bonding steel on the beams can increase the flexural capacity and rigidity substantially and the bearing capacity of the beams in primary force condition is increased more than that in secondary force condition.As the thickness of adhesive increases,the strain lag of steel becomes very obvious.更多还原