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横向裂缝对PC箱梁结构的影响横向裂缝对PC箱梁结构的影响

, PP. 59-63

Keywords: 桥梁工程,PC箱梁,横向裂缝,数值分析

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Abstract:

针对PC箱梁结构正弯矩区段开裂后力学性能复杂、承载力评估困难的问题,利用裂缝参数统计方法,将正弯矩区段的实际横向裂缝转化为统计意义下的平均裂缝,运用数值方法对该统计裂缝进行模拟,通过对比开裂前后的分析结果,以达到评估开裂结构的目的,并对实际开裂的桥梁进行了对比分析。结果表明,开裂后箱梁结构的承载力只为原设计状态的80%。

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