基于裂缝宽度扩展评价钢筋混凝土桥梁承载能力的研究

随着我国桥梁事业的快速发展,对现役桥梁结构状态进行评估显得越来越重要。在荷载试验的基础上,提出根据裂缝宽度扩展情况分析评估钢筋混凝土桥梁承载能力的方法,并用1组钢筋混凝土矩形截面梁的模型试验验证该评估方法。通过试验数据分析与计算,探讨裂缝宽度扩展评价钢筋混凝土桥梁承载能力方法中安全评估等级的取值范围,验证该方法在实际工程中的可行性。

Research on Evaluation for Bearing Capacity of Reinforced Concrete Bridges Based on Extension of Crack Width

With the rapid development of bridge industry in China,the evaluation for structural states of the existing bridges appears more and more important.Based on load test,this paper proposes a method to evaluate the bearing capacity of reinforced concrete bridges according to the extension of crack width,and verifies this evaluation method by means of model test for one group of reinforced concrete rectangular section beams.With the help of analysis and calculation for test data,the paper probes into the value ...