JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2010, Vol. 40 ›› Issue (4): 96-101.

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Theory analysis and application on temperature load effects of large span CFST arch ribs under construction

SUN Guo-fu1,2, LI Shu-cai2, ZHANG Bo2   

  1. 1.Business Administration School, Shandong University of Finance, Jinan 250014, China;
    2. Geotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, China
  • Received:2010-01-21 Online:2010-08-16 Published:2010-01-21

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Abstract:

To research the law of temperature load effects during the installation of the steel tubular arch ribs of the Zhijing Bridge, a computational analysis and comparative study was done for a variety of working conditions of temperature changes and the measured temperature in site using a space finite element model established by ANSYS parametric design language. This method integrates the perspectives of bukle′s temperature and arch ribs′ nonlinear temperature, and establishes the finite element model according to the principle of equivalent linearization of the nonlinear temperature. The results showed that the nonlinear temperature under sunlight affects the accuracy of the main arch ribs installation, and reveals the changes law  of arch ribs under the sunlight affect, which could provide a reference for the installation of CFST arch ribs.

Key words: concrete-filled steel tube arch bridge, temperature load, sunlight action, finite element, linearization

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