斜拉桥菱形挂篮监测系统研究
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摘要
针对国内挂篮施工安全形势严峻的现状,以江西某斜拉桥为工程背景,研究了吊桥式菱形挂篮监控系统的设计及监测实施过程,重点分析了监测系统的现场布置原则及监测结果。分析表明挂篮监测系统能够实时测量挂篮监测点温度、拉伸量、应力、倾斜度和风速变化,监测数据超过安全阀值时会发出预警提示。实践表明本监测系统能够保障挂篮安全施工,提高施工效率。
In view of the grim situation of the construction safety of rhombus hanging basket,this paper studies the design and process monitoring of monitoring system of a cable-stayed bridge located in Jiangxi Province,and analyzes the site layout principles and monitoring results of the monitoring system. The analysis shows that the hanging basket monitoring system can measure the temperature,tensile force,stress,inclination and wind speed of the hanging basket monitoring point in real time. When the monitoring data exceed the safety threshold,it will issue an early warning. The practice shows that the monitoring system can guarantee the safety of the hanging basket and improve construction efficiency.
In view of the grim situation of the construction safety of rhombus hanging basket,this paper studies the design and process monitoring of monitoring system of a cable-stayed bridge located in Jiangxi Province,and analyzes the site layout principles and monitoring results of the monitoring system. The analysis shows that the hanging basket monitoring system can measure the temperature,tensile force,stress,inclination and wind speed of the hanging basket monitoring point in real time. When the monitoring data exceed the safety threshold,it will issue an early warning. The practice shows that the monitoring system can guarantee the safety of the hanging basket and improve construction efficiency.
引文
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[8]周向阳,况中华,范志远.伊朗德黑兰特大桥施工中的挂篮荷载试验与分析[J].建筑施工,2017,39(03):416-418.
[9]滕峰斌.挂篮法悬臂现浇连续梁桥的监测与监控[J].城市道桥与防洪,2016(03):103-107.
[10]曹恒钊.采用挂篮悬浇施工桥梁超宽波形钢腹板组合梁[J].建筑施工,2017,39(07):1077-1078.
[2]刘翠云,董传洲.国外预应力混凝土连续梁桥发展和施工技术[J].世界桥梁,2011(06):1-4.
[3]贺玲凤,周希平,何锦明.菱形挂篮系统的荷载试验[J].建筑科学,2005(04):16-18.
[4]姜宝仁.某特大桥不等跨连续梁施工技术研究[D].杭州:浙江工业大学,2016.
[5]刘晓明.多跨长大刚构连续梁桥悬灌施工监控研究与实践[D].石家庄:石家庄铁道大学,2017.
[6]陈浩.基于BIM的斜拉桥施工控制与仿真分析[D].北京:北京交通大学,2017.
[7]刘浩磊.斜拉桥牵索式前支点挂篮有限元分析监测技术[J].上海建设科技,2018(05):1-3.
[8]周向阳,况中华,范志远.伊朗德黑兰特大桥施工中的挂篮荷载试验与分析[J].建筑施工,2017,39(03):416-418.
[9]滕峰斌.挂篮法悬臂现浇连续梁桥的监测与监控[J].城市道桥与防洪,2016(03):103-107.
[10]曹恒钊.采用挂篮悬浇施工桥梁超宽波形钢腹板组合梁[J].建筑施工,2017,39(07):1077-1078.