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特厚煤层综放开采覆岩运移规律的相似材料试验研究
  • 期刊名称:大连大学学报
  • 时间:2010.12.12
  • 页码:61-
  • 分类:U448.221[建筑科学—桥梁与隧道工程;交通运输工程—道路与铁道工程]
  • 作者机构:[1]大连大学辽宁省复杂结构体系灾害预测与防治重点实验室,辽宁大连116622, [2]重庆交通大学土木建筑学院,重庆400074
  • 相关基金:国家杰出青年科学基金(51009015,51008047); 辽宁省教育厅科学研究一般项目(L2012442)
  • 相关项目:复杂环境下暗挖地铁隧道诱发地层变形机理及其对邻近在役管线的影响
中文摘要:

随着各种灾害的日趋增加,现役桥梁遭到不同程度的破坏。为详细掌握桥梁病害状况,准确判断桥梁技术状况及实际承载能力,需要对现役桥梁进行静载实验。以山西某双曲拱桥为依托,对该双曲拱桥进行静载试验分析,通过计算及实验结果评价桥梁的使用性能。结果显示为:0#桥台的竖向位移及横向位移在各工况作用下均为0 mm,主梁挠度测点的校验系数在各工况都小于1,校验系数满足规范要求;桥梁结构虽然存在一定的损伤,但是其结构状态良好,满足基本运营要求。

英文摘要:

With the increasing frequency of disasters,many bridges were recently destroyed more or less. It is essential to carry out the static load test to estimate the bridge diseases situation in detail. Taking the double arch bridge in Shanxi province as an example,calculation and analysis of onsite loading test were carried out. The results showed that the vertical displacement and horizontal displacement under various conditions about the 0#abutment was 0 mm. The calibration coefficient about the site of the girder deflection was less than 1 in every condition considered. This results also demonstrated that the calibration coefficient meet standard requirements. The experimental conclusion is that the bridge structure was safe although there were some damages and it can meet the requirements of basic traffic.

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