Checking and Strengthening Scaffolding of the Home Block for Hanging Cradle Construction of Qinhe Bridge

Abstract:

In order to ensure the safety of the scaffolding of the home block for hanging cradle construction, this paper makes use of probabilistic limit state method, and carries out the checking computation. According to the actual drawings of the Qinhe bridge and the actual load case, the analytical model is established through the finite element analysis software MIDAS/CIVIL. The results show that the slant tube may be flexural buckling, and the stress of side standing tube is over the design strength of material, so that there is potential danger of the scaffolding. After the horizontal tubes were installed along the boundary of scaffolding, the stresses of all tubes are less than the design strength of corresponding material.

• Periodical: Applied Mechanics and Materials (Volumes 438-439)
• Pages: 926-929
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.438-439.926
• Online since: October 2013
• Authors: Ji Hao Chen, Yu Jia Gao, Sen Liu, Yong Peng Sun
• Keywords: Bridge Engineering, Checking, Prestressed Concrete Box Girder, Scaffolding of Home Block, Strength

References

[1] JGJ166-2008, Technical Code for Safety of Cuplock Steel Tubular Scaffolding in Construction, China Building Industry Press, Beijing, (2009).

[2] H. Zhang, F. Xu, D. Zhang, et al, ANSYS-based analysis on whole stable load-bearing capacity of steel tubular scaffold with couplers, Architecture Technology, Vol. 40 6 (2009) 555-557.