Research on the key technology of TIED-arch bridge Incremental Launching Method Construction
Keywords:Tied-arch bridge, Incremental launching method, Construction monitoring, Temporary pier, Launching nose
Steel tied arch bridge has been widely used in modern bridge construction due to its beautiful shape, high material utilization rate and overall structural stiffness. However, there are few cases in which the tied-arch bridge is constructed by incremental launching . Based on the steel tied arch bridge project, this paper uses finite element software to establish the finite element simulation analysis of the construction process, and monitors the construction process of the bridge. The test results show that it is in the most unfavorable state when the cantilever at the end of the bridge reaches the maximum. At this time, the stress at the 117 m position of the beam reaches the maximum, the stress at the top edge is 33.7 MPa, and the stress at the bottom edge is -58.2 MPa. The stress in other sections did not exceed 30 MPa, and the beam was under uniform stress. When the foot of the internal arch passes through the temporary pier, the supporting force of the pier is maximum, which is about 6000 kN. The reasonable range of α is between 0.55 and 0.65, which is the ratio between the length Ln of launching nose and the maximum span L of incremental launching .
Jung K H , Kim K S , Sim C W , et al. Verification of Incremental Launching Construction Safety for the Ilsun Bridge, the World's Longest and Widest Prestressed Concrete Box Girder with Corrugated Steel Web Section[J]. Journal of Bridge Engineering, 2011, 16(3):453-460.
Marzouk M , El-Dein H Z , El-Said M . Application of computer simulation to construction of incremental launching bridges[J]. Statyba, 2007, 13(1):27-36.
Sampaio A Z , Martins O P . The application of virtual reality technology in the construction of bridge: The cantilever and incremental launching methods[J]. Automation in Construction, 2014, 37(jan.):58-67.
Yong-Hong C . Incremental Launching Construction of Steel Box Girder of Self-Anchored Suspension Bridge of Pingsheng Bridge[J]. Bridge Construction, 2006.
Xu, Ming K . Incremental Launching Construction Method for Steel Truss Suspension Bridge[J]. Advanced Materials Research, 2011, 204-210:842-845.
Wang W , Zheng H , Zeng X . Optimum Design of Launching Nose during Incremental Launching Construction of Same-Span Continuous Bridge[J]. World Academy of Science, Engineering & Technology, 2011(72):861.
Lin, J, P, et al. Evaluation of Long Multi-Span Steel U-Shaped Girder During Incremental Launching Construction[J]. Journal of Testing and Evaluation: A Multidisciplinary Forum for Applied Sciences and Engineering, 2015, 43(2).
Jiang T Y , Tian Z C , Xu J H . Key Technologies of Whole Incremental Launching Construction Control for Inclined Continuous Box Girder with Steep Longitudinal Gradient[J]. Applied Mechanics & Materials, 2012, 204-208:2034-2039.
Dai J , Di J , Qin F J , et al. Finite Element Analysis on Incremental Launching Construction for Steel Box Girder[J]. Advanced Materials Research, 2013, 671-674(1):974-979.
Roeder C W , Macrae G , Crocker P . Dynamic Response and Fatigue of Steel Tied-Arch Bridge[J]. Journal of Bridge Engineering, 2000, 5(1):14-21.
Cheng K M , Ketchum R A , Drouillard R . Nanning Butterfly Tied Arch Bridge Over the Yong River in China[J]. Structural engineering international, 2010, 20(3):P.308-311.
Kim, Woo, Jong, et al. Gyopo Bridge: A Double-Tied Arch Bridge in Poseung-Pyeongtaek Railroad[J]. Structural Engineering International, 2012.
Duan Y F , Li Y , Xiang Y Q . Strain-temperature correlation analysis of a tied arch bridge using monitoring data[C]// 2011 International Conference on Multimedia Technology. IEEE, 2011.
Bai J C . Construction Control Technique for Special-Shaped Tied-Arch Bridge with Anti-Symmetric Reinforced Concrete Arch Ribs[J]. Bridge Construction, 2018, 48(3):116-120.
Bangwu Y , Feng Y , Xiangrong G , et al. Influence of temperature deformation on vehicle-bridge dynamic response of long-span steel box-girder tied-arch bridge[J]. Journal of Railway Science and Engineering, 2013.
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