某曲线连续梁桥顶升高度偏差原因分析及应对措施
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- 英文论文题名：Cause Analysis and Countermeasures of Jacking Height Deviation of a Continuous Beam Bridge
- 论文作者：王海 ; 张能伟 ; 吴二军 ; 苟金成
- 英文论文作者：Wang Hai ; Zhang Nengwei ; Wu Erjun ; Gou Jincheng ; Shanghai Tonggang Architectural Engineering Co. ; Ltd. ; College of Civil and Transportation Engineering ; Hohai university
- 年：2016
- 作者机构：上海同罡建筑工程有限公司;河海大学土木与交通学院;
- 论文关键词：曲线桥 ; 桥梁顶升 ; 高度偏差 ; 原因分析 ; 技术措施
- 英文论文关键词：curved bridge ; bridge jacking ; height deviation ; cause analysis ; technical measures
- 会议召开时间：2016-12-02
- 会议录名称：第十一届建筑物改造与病害处理学术研讨会、第六届工程质量学术会议论文集
- 语种：中文
- 分类号：U445.4
- 学会代码：OGTY
- 会议名称：第十一届建筑物改造与病害处理学术研讨会、第六届工程质量学术会议
- 会议地点：中国海南海口
- 主办单位：中国老教授协会土木建筑专业委员会、中国土木工程学会工程质量分会、北京交通大学土木建筑工程学院
- 学会名称：中国土木工程学会
- 页数：3
- 文件大小：539k
- 原文格式：O
- 会议级别：全国
摘要
曲线桥梁整体顶升工程中,顶升位移的同步控制是关键性技术的难点,实际工程经常出现偏差较大现象,甚至可能发生安全事故。对曲线连续桥梁顶升中外侧位移偏高的2种可能原因进行分析。在有限元内力计算和现场监测基础上给出某三跨曲线连续箱形梁顶升偏差产生的原因,提出通过对其顶升动力与位移监控系统编组调整的曲线桥平衡顶升措施。
Synchronous control of jacking displacement is a key technical difficulty in the integral jacking engineering of curved bridge.Significant deviation usually happened in actual project,and a safety accident may even been brought out.Two possible reasons why the jacking displacement of outer edge of the bridge is higher were discussed.Taking a three span curved continuous box girder as the example,based on the finite element calculation of internal force and the field monitoring,the reason of jacking deviation was given.In order to reduce the jacking deviation,the balance jacking measures by adjusting groups of the lifting jacks and the displacement monitoring points were put forward.
Synchronous control of jacking displacement is a key technical difficulty in the integral jacking engineering of curved bridge.Significant deviation usually happened in actual project,and a safety accident may even been brought out.Two possible reasons why the jacking displacement of outer edge of the bridge is higher were discussed.Taking a three span curved continuous box girder as the example,based on the finite element calculation of internal force and the field monitoring,the reason of jacking deviation was given.In order to reduce the jacking deviation,the balance jacking measures by adjusting groups of the lifting jacks and the displacement monitoring points were put forward.
引文
[1]林耿雄,姜海波.桥梁顶升技术的探讨[J].广东建材,2008(10):65-68.
[2]韩振勇,张振学,张玉明,等.桥梁改造工程中同步顶升技术的应用[J].中国市政工程,2007(1):24-25,96.
[3]蓝戊己,顾远生,束学智,等.大型桥梁整体顶升平移关键技术[C]//第二届全国工程结构抗震加固改造技术交流会论文集.2010.
[4]杜博.合肥在建高架桥坍塌致一人死亡系中铁四局承建.[EB/OL].http://society.people.com.cn/GB/41 158/15232361.html.2016-06-23.
[5]蒋岩峰,蓝戊已.桥梁整体顶升关键技术研究[C]//首届全国既有结构加固改造设计与施工技术交流会论文集.2007.
[6]隋渤海.上跨多股既有铁路钢筋混凝土连续梁桥综合施工技术[J].施工技术,2016,45(11):46-49.
[2]韩振勇,张振学,张玉明,等.桥梁改造工程中同步顶升技术的应用[J].中国市政工程,2007(1):24-25,96.
[3]蓝戊己,顾远生,束学智,等.大型桥梁整体顶升平移关键技术[C]//第二届全国工程结构抗震加固改造技术交流会论文集.2010.
[4]杜博.合肥在建高架桥坍塌致一人死亡系中铁四局承建.[EB/OL].http://society.people.com.cn/GB/41 158/15232361.html.2016-06-23.
[5]蒋岩峰,蓝戊已.桥梁整体顶升关键技术研究[C]//首届全国既有结构加固改造设计与施工技术交流会论文集.2007.
[6]隋渤海.上跨多股既有铁路钢筋混凝土连续梁桥综合施工技术[J].施工技术,2016,45(11):46-49.