考虑拱索效应影响的框架梁抗弯承载力

Flexural Capacity Analysis of the Framework with Cable Arch Beam

通过静载试验研究了"索和拱效应"影响的框架梁承载力,重要研究配筋率等因素对其承载力的影响规律。结果表明,拱效应普遍存在于钢筋混凝土框架梁中,并且显著提高梁的跨中极限承载力,为框结构的抗倒塌提供了理论和实验的证明。

Influence of ＂cable and arch effect＂ on flexural strength of frame beams was investigated in this paper through experiment. IMPact of reinforcement ratio on its bearing capacity was analyzed, It was showed that arch effect are widely in the reinforced concrete frame beams, and significantly improve the ultimate bearing capacity of beams across. It provided the theoretical and experimental proofs for box structure collapse.