摘要
为保障预应力混凝土连续梁桥施工阶段的结构安全,解决现有施工监控技术的不足,以新建连徐铁路跨沂河西大堤(40+72+40)m预应力混凝土连续梁桥为工程依托,借助BIM技术,开展预应力连续梁桥施工应力监控设计及应用研究;根据施工图纸,建立桥梁与监测设备的BIM模型;通过监测方案的设计与实施,分析BIM技术在仪器安装、线缆排布、监测数据与模型关联、监测数据自动预警等方面的优势。研究结果及工程实践表明:三维BIM模型可直观展示监测仪器布设,辅助决策线缆排布,通过二次开发将应力监测数据与传感器模型关联,可以实现应力监测数据的阈值预警,提升施工监控的效率;监测数据表明桥梁施工期间梁体应力满足设计要求,施工过程安全可靠。
To ensure the safety of pre-stressed continuous girder bridge in the construction stage,and to solve the shortage of construction monitoring,the design and application of the stress monitoring are implemented with the help of BIM technology based on the(40+72+40)m bridge in Lianyungang-Xuzhou High-speed Railway.According to the construction drawings,the BIM models of the bridge and monitoring equipment are established.The advantages of BIM technology in instrument installation,cable routing,correlation of monitoring data with models,and automatic warning of monitoring data are analyzed.The research results and engineering practices show that the 3D BIM model can visually display the layout of the monitoring instrument and assist cable arrangement.Through secondary development,the stress monitoring data are correlated with the sensor model,the threshold warning of the monitoring data is realized and the efficiency of construction monitoring is improved.The monitoring data indicates that the beam stress is in compliance with specifications in the construction stage and the construction process is safe and reliable.
作者
赵亚宁
王浩
郜辉
祝青鑫
王飞球
谢以顺
ZHAO Yaning;WANG Hao;GAO Hui;ZHU Qingxin;WANG Feiqiu;XIE Yishun(Key Laboratory of Concrete and Prestressed Concrete of Ministry of Education,Southeast University,Nanjing 210096,China;Jiangsu Engineering Co.,Ltd.of China Railway 24th Bureau Group,Nanjing 210038,China)
出处
《铁道标准设计》
北大核心
2020年第11期68-73,共6页
Railway Standard Design
基金
江苏省重点研发计划-产业前瞻与共性关键技术(BE2018120)
中国铁路总公司科技研究开发计划重点课题(2017G002-K)
国家万人计划青年拔尖人才(W03070080)。
关键词
高速铁路
铁路桥
连续梁桥
BIM技术
施工监控
应力监测
high-speed railway
railway bridge
continuous girder bridge
BIM technology
construction control
stress monitoring
