三跨中承式鋼箱系桿拱橋力學計算分析與施工控制

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【中圖分類號】：U445 【文獻標志碼】：C 【文章編號】：1008-3197（2025）02-29-05

【DOI編碼】：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

拱橋作為世界上最常用且歷史悠久的一種橋梁結構，以跨越能力強、耐久性好、外形美觀、養(yǎng)護及維修費用小等特點，受到橋梁設計師的青睞＼～3]。（剩余3988字）