诊断性荷载试验方法在装配式梁桥中的应用

发布时间：2018-01-11 08:26

本文关键词：诊断性荷载试验方法在装配式梁桥中的应用　出处：《世界桥梁》2017年02期 　论文类型：期刊论文

【摘要】：为全面评定装配式梁桥的横向性能,以内蒙古某大桥为背景,针对装配式梁桥结构组成特点,提出了一种诊断性荷载试验方法,采用较小的加载效率在横桥向各片主梁上分别进行独立加载,并在实桥中进行试验,与常规荷载试验方法所得数据进行对比分析。结果表明,常规荷载试验方法难以判别不同主梁之间的质量差异以及梁间横向联系强弱的差异;诊断性荷载试验方法灵活,在测试桥梁横向性能方面具备较强的针对性;诊断性荷载试验方法在评价装配式梁桥的横向性能方面更加有效,可以作为传统荷载试验方法的一种补充和验证。
[Abstract]:For the overall performance evaluation of horizontal assembling type girder bridge, a bridge in Inner Mongolia as the background, in view of the assembly type bridge structure characteristics, put forward a kind of diagnostic method of load test, the loading efficiency was smaller in the transverse direction of the bridge girder were all loaded and tested in the real bridge, for compared with the data obtained from the conventional load test method. The results show that the test method of conventional load is difficult to distinguish differences in quality differences between the main beam and beam transverse strength; test method of load diagnosis flexible, strong pertinence in the test of bridge lateral performance; horizontal load performance test methods of diagnosis in the evaluation of assembly type girder bridge is more efficient and can be used as a supplement and validation test method of traditional load.

【作者单位】：中国公路工程咨询集团有限公司;
【分类号】：U446.1
【正文快照】： 1 引言我国公路桥梁荷载试验一般按照《公路桥梁承载能力评定规程》(JTG/T J21-2011)和《公路桥梁荷载试验规程》(JTG/T J21-01-2015)的要求进行实施,2部规范均要求加载荷载接近或达到设计荷载,这种加载方式称为常规荷载试验。常规荷载试验是桥梁结构的承载能力评估最直接

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