航站楼钢网架屋盖整体顶升法施工模拟与监测关键技术  

KEY TECHNOLOGIES FOR CONSTRUCTION SIMULATION AND MONITORING OF THE INTEGRAL JACKING METHOD FOR STEEL GRID ROOF OF TERMINAL

作　　者：黄鑫 HUANG Xin(China Railway Nineteenth Bureau Group Second Engineering Co.,Ltd.,111000,Liaoyang,Liaoning,China)

机构地区：[1]中铁十九局集团第二工程有限公司,辽宁辽阳111000

出　　处：《建筑技术》2024年第4期499-503,共5页Architecture Technology

摘　　要：结合南充高坪机场施工改扩建项目工程,通过BIM技术与有限元分析结合的方法进行施工模拟,并通过施工监测确保施工过程中无安全风险事故发生。经过有限元施工模拟分析,结果表明:将原设计方案直接应用于施工会导致杆件受力超限、位移过大等问题,而将部分杆件进行加固处理后,模拟得出结果为安全。此外,还借由振弦式应力计、高支模系统等进行安全风险监测,对施工过程中液压顶升架、反力支架的状态进行监控,若出现异常情况则及时进行控制。这一综合方法保证了网架杆件在施工过程中的受力合理性,有效避免了失稳倒塌事故的发生。In the renovation and expansion project of Nanchong Gaoping Airport,construction simulation was performed through a combination of the BIM technology and finite element analysis.In addition,construction monitoring was carried out to avoid safety hazards in the construction process.Results of finite element analysis of construction simulation showed:the direct application of the original design scheme in construction will cause excessive stress and displacement of bars,and reinforcement of some bars will lead to safe results of simulation.In addition,safety risk monitoring was conducted with the vibrating wire stress gauge and high formwork support system,and the hydraulic jacking frame and reaction support was monitored in the construction process.In case of any abnormality,control measures were taken in a timely manner.This comprehensive method ensures the rationality of stress of grid bars in the construction process,and effectively avoids accidents arising from instability and collapse.

关 键 词：钢网架屋盖 整体顶升 施工模拟 BIM 力学性能分析 

分 类 号：TU758.1[建筑科学—建筑技术科学]