INFORMATION CHANGE THE WORLD

International Journal of Image, Graphics and Signal Processing(IJIGSP)

ISSN: 2074-9074 (Print), ISSN: 2074-9082 (Online)

Published By: MECS Press

IJIGSP Vol.2, No.1, Nov. 2010

Simplified Model for Fire Resistance Analysis on Steel Staggered-truss System under Lateral Force

Full Text (PDF, 373KB), PP.1-9


Views:87   Downloads:2

Author(s)

Changkun Chen,Dong Zhang,Guanglin Liu

Index Terms

Steel staggered-truss, fire, lateral force, finite element method

Abstract

In order to investigate the simplified method for the fire resistance analysis on the steel staggered-truss system (SSTS) under the lateral force, a three-dimensional (3-D) model, a plane cooperative (PC) model and a planar model are established by the finite element method respectively. The effect of slabs is considered in the models. The mechanical performances of SSTS at elevated temperature were analyzed and the interaction characteristics between the truss exposed to fire and its adjacent trusses are studied. The results obtained by the above different models were comparatively investigated to explore the applicability of different models for the analysis of SSTS under lateral force and high temperature. The results indicate that the adjacent trusses in SSTS under lateral force could keep good coordination at elevated temperature. When applied to the analysis for SSTS under lateral force at elevated temperature, the 3-D model is the best in accord with actual situation while it is complicated and the computation is time-consuming, and the planar model is simple and convenient while it may cause some considerable deviation, and the PC model could simulate the interactions between adjacent frame truss and the truss under fire effectively in the SSTS, whose result is in the propinquity of 3-D model and has an acceptable accuracy. The PC model without rigidly hinged bars (RHB) on the fire floor is recommended to analyze the fire response behaviors of staggered-steel truss system under lateral force.

Cite This Paper

Changkun Chen,Dong Zhang,Guanglin Liu, "Simplified Model for Fire Resistance Analysis on Steel Staggered-truss System under Lateral Force", IJIGSP, vol.2, no.1, pp.1-9, 2010.

Reference

[1]B. Aine, “Staggered truss system proves economical for hotels,” Modern Steel Construction, vol. 40, pp. 32, September 2000.

[2]L. Matthys p, “Staggered truss system earns an A+”. Modern Steel Construction, vol.40, pp. 28, November 2000

[3]XH Zhou, T Mo, YJ Liu, ZM Yin, LF Lu and QS Zhou, “Experimental study on high-rise staggered truss steel structure,” Journal of Building Structures, vol. 27, pp. 86-92, 2006

[4]XH Zhou, YJ He, L Xu and QS Zhou, “Experimental study and numerical analyses on seismic behaviors of staggeredtruss system under low cyclic loading,” Thin-Walled Structures, vol. 47, pp. 1343–1353, November 2009,

[5]J. Kim, J. H. Lee, Y.M. Kim, “Inelastic behavior of staggered truss systems”, Structural Design of Tall and Special Buildings, vol.16, 2007, pp. 85-105.

[6]http://www.aisc.org/Content/ContentGroups/Documents/Staybridge/Staybridge.htm, 2008.

[7]SK Choi, I Burgess and R Plank, “Performance in fire of long-span composite truss systems,” Engineering Structures, vol.30, pp. 683-694, March 2008.

[8]SK Choi, IW Burgess and RJ Plank, “Behaviour of lightweight composite trusses in fire – a case study,” Steel and Composite Structures, 2007, vol.7, pp.105-18.

[9]J Chang, AH Buchanan, PJ Moss. “Effect of insulation on the fire behaviour of steel floor trusses,” Fire and Materials, 2005, vol. 29, pp.181–94.

[10]NIST NCSTAR 1, “Final report on the collapse of the world trade center towers,” National Institute of Standards and Technology, 2005.

[11]G Flint, AS Usmani, S Lamont, J Torero and Lane B, “Effect of fire on composite long span truss floor systems,” Journal of Constructional Steel Research, vol.62, pp.303-315, 2006.

[12]AISC, “Steel Design Guide 14: Staggered Truss Framing System,” American Institute of Steel Construction: Chicago, 2002.

[13]CK Chen and Y Yang, “Numerical studies on the behaviors of staggered-steel truss system under fire conditions,” Progress in Safety Science and Technology, Changsha, vol. AⅣ, 2006, pp.690-694.

[14]CK Chen, R Xiao and D Zhang, “3-D Finite Element Analysis of the Response Behaviors of Steel Staggered-Truss Framing System at Local Elevated Temperatures,” Progress in Safety Science and Technology, Beijing, vol.7, pp. 769-773, 2008.

[15]Eurocode 3: Design of Steel Structures, Part 1.2: General Rules, Structural Fire Design. British Standards Institution, 2000.

[16]R. P. Gupta, S. C. Goel, “Dynamic analysis of the staggered truss framing system”, Journal of Structure Division, ASCE, vol. 7, 1972, pp. 1475-1492

[17]YC Wang, “Steel and Composite Structures: Behaviour and design for fire safety,” London: Spon Press, 2002.

[18]AH Buchanan, “Structural design for fire safety,” New York: John Wiley&Sons Ltd, 2001.

[19]A Santiago, LS da Silva, PV Real and M Veljkovic, “Numerical study of a steel sub-frame in fire,” Computers and Structures, vol. 86, pp.1619–1632, August 2008.

[20]Y.Z. Yin and Y.C. Wang, “A Numerical study of large deflection behaviour of restrained steel beams at elevated temperatures,” Journal of Constructional Steel Research, vol. 60, pp. 1029-1047, July 2004.