三跨中承式钢箱系杆拱桥力学计算分析与施工控制

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【中图分类号】：U445 【文献标志码】：C 【文章编号】：1008-3197（2025）02-29-05

【DOI编码】：10.3969/j.issn.1008-3197.2025.02.007

Measurement Control for Construction of Three-span Center-bearing Steel Box Tie Arch Bridge

WANGXin1，ZHAO Xu1，LIUPengxi1，YANChuan2

（1.China ConstructionSithEngnineeringDivisionCo.Ltd.，ianjin3O71，China；2.CentralResearchInstituteofBuildingand Construction Co.Ltd.，Beijing 100082，China）

【Abstract】 ∵ Taking a three-span medium-bearing steel box-tie arch bridge with a span arrangement of 30 m+130 m+30 m as an example，the stress state and key technology of construction control of the three-span medium-bearing steel box-tiearch bridge isanalyzedand researched from various perspectives，such as the establishmentof thefinite element model，structural analysisof thekeyparts，calculation of the structural prearchedness，and line control，etc.The measurement methods of the corresponding parameters are put forward，and the construction of the bridge is monitored and analyzed with comparison with theon-site measurement data.The whole process control method was used to monitor the construction of the bridge，and compared and analyzed with the on-site measured data，and the results showed that the force state and line shape of the bridge during construction and after completion of the bridge were the sameas the control target.

【Key words】：construction measurement；tie-arch bridge ；center-supported steel box arch bridg

拱桥作为世界上最常用且历史悠久的一种桥梁结构，以跨越能力强、耐久性好、外形美观、养护及维修费用小等特点，受到桥梁设计师的青睐＼～3]。（剩余3988字）