Study on Elasto-Plastic Stability Bearing Capacities for K6 Single-Layer Reticulated Shells under Fire Conditions

Author:

Bai Yin1,Zhai Jian Lei1,Shi Yong Jiu2,Wang Yuan Qing2

Affiliation:

1. Beijing University of Aeronautics and Astronautics

2. Tsinghua University

Abstract

The elastic modulus of steel will decrease in case of high temperature which makes the reticulated shells easier to have the global instability phenomenon. In order to obtain the elasto-plastic stability bearing capacities for K6 single-layer reticulated shells [1], nonlinear finite analysis compete process was conducted by ANAYS software under on the two typical cases which include global non-uniform temperature distribution and localized high temperature. Based on the calculation formula for single-layer reticulated shells at ambient temperature, the calculation formula for elasto-plastic stability bearing capacity for K6 single-layer reticulated shells was obtained.

Publisher

Trans Tech Publications, Ltd.

Reference9 articles.

1. Y.J. Shi, Y. Bai and Y.Q. Wang, Analysis on global mechanics properties of large-space steel structure under fire conditions, X. Bin, X. Yan et al. (Eds), Proceeding of the Tenth International Symposium on Structural Engineering for Young Experts, Science Press, Beijing, 2008, p.1966-(1969).

2. Y. Bai, Y.Q. Wang, Y.J. Shi, Elasto-plastic stability bearing capacity calculation for K8 single-layer reticulated shells under fire conditions, Beijing University of Technology Journal. (03) 381-387.

3. Z.Y. Shen, Y.J. Chen, Grid structures and reticulated shell structures, Tongji University Press, Shanghai, 1997, pp.169-191 (in Chinese).

4. Ministry of Construction. JGJ 61-2003 J258-2003, Technical Specification for Latticed Shells, China Plan Press, Beijing, 2003, pp.25-43 (in Chinese).

5. X. Wang, F. Wang, Influence analysis of joint's stiffness on spatial reticulated shell, Trans Tech Publications, Switzerland, (2011).

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