摘要
碗扣式满堂支架体系因其通用性强、承载力高、安装速度快、运输方便等特点,在桥梁上部结构施工中得到了广泛的应用。以碗扣式满堂支架在某现浇预应力砼连续箱梁桥施工中的应用为研究背景,建立了碗扣式满堂支架结构体系受力仿真模型,与支架结构体系的监控量测数据进行对比分析,研究了现浇箱梁碗扣式满堂支架的工作性能。结果表明:施工过程中,该支架结构体系承受的最大应力和挠度值均小于规范容许值,其工作性能满足要求;midas/FEA有限元仿真分析软件计算结果可靠,建立现浇箱梁实体单元作用于底模上时更符合工程实际,适用于碗扣式满堂支架结构体系的仿真计算。研究结论可为今后同类满堂支架结构体系力学性能分析提供参考。
The cup-lock full support scaffold system has been widely used in the construction of bridge superstructure due to its advantages like strong universality,high bearing capacity,quick installation speed and convenient transportation and so on. With the application of the cup-lock full support scaffold structure system in the continuous box girder bridge construction of a cast-in-place pre-stressed concrete as the research background,the stress simulation model of the cup-lock full support scaffold structure system is established,which is compared and analyzed with the monitoring data of the scaffold system,and the working performances of the cast-in-place box girder cup-lock full support scaffold system are studied. The results show that,during construction process,the maximum stress and deflection value of the framing system are less than the allowable value of the code,and its working performance can meet the requirements. The calculation result of Midas/FEA finite element simulation analysis software is reliable,and the establishment of cast-in-place box girder solid element acting on the bottom die is more in line with the engineering practice and is applicable to the simulation calculation of cup-lock full support scaffold system. The research result can provide reference for mechanical analysis of future similar full support scaffold system.
作者
贺辉
唐焱
He Hui;Tang Yan(Transport Bureau of Changde West Dongting Administration District,Changde 415000 ,Hunan;Municipal and Architecture Engineering Company,Zhongye Changtian International Engineering Co.,Ltd.,Changsha 410205)
出处
《工程建设》
2019年第4期71-75,共5页
Engineering Construction
关键词
桥梁工程
碗扣式满堂支架
现浇箱梁
仿真分析
工作性能
bridge engineering
cup-lock full support scaffold
cast-in-place box girder
simulation analysis
working performance
