Comparison of designing simple steel frame & coaxial brace systems by contrast of blast, using two methods of load & resistance coefficients & performance surfaces

Document Type : Original Article

Authors

1 MSc, Complex of logistics and passive defence, Malek-Ashtar University of Technology, Tehran, Iran

2 Associate Professor, Structural Engineering Research Center, International Institute of Engineering Earthquake and Seismology, Tehran, Iran

3 Associate Professor, Lorestan University, Lorestan, Iran

Abstract

Nowadays, because of the increasing terrorist attacks around the urban areas, designing buildings by contrast of resulted loads of blast came into consideration particularly in some sensitive buildings & vital arteries. When a blast occurs, the resulted emissions in environment leads to appearance of several penalties and endangers to the human life. Steel structures generally are designed on the basis of standard seismic and gravity loads, it is necessary to investigate the implantation of these structures under the impact of the loads originated from blast. This article presents numerical studies of two-dimensional structural models with 2 and 5 stories which are including simple steel frame system in addition to CBF. The models were analyzed by nonlinear dynamic analysis method using the instruction UFC 3-340-02 in two adverse levels of blast loads by SAP 2000 software. In this study structural models are designed and analyzed using two designing methods: the basic performance design, and Load and Resistance Factor Design (LRFD). Finally, two set of results are compared in detail.

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Main Subjects

References

[1] Unified Facilities Criteria (UFC 3-340-02); “Structures to Resist the Effects of Accidental Explosions”; US Department of Defense, Washington DC, 5 December 2008.
[2] Accidental Explosions; TM 5-1300; “The Design of Structures to Resist the Effects of US Department of the Army, Navy, and Air Force”; Washington DC, 1990.
[3] J.Y.Richard Liew; “Survivability of steel frame structures subject to blast and fire”; Journal of Constructional Steel Research, (2008),Volume 64, Pages 854-866.
[4] Urgessa, G. S.; Arciszewski, T.; “Blast Response Comparison of Multiple Steel Frame Connections”; Finite. Elem. Anal. Des. 2011, 47, 668-675.
[5] Kapil Khandelwal, Sherif El-Tawil, Fahim Sadek.; “Progressive collapse analysis of seismically designed steel braced frames”; Journal of Constructional Steel Research. (2009).
[6] Luccioni , B.M ., Ambrosini , R.D and Danesi , R.F ,(2004) , Analysis of building collapse under blast load , Engineering structure , Volume 26, Issue 1, January 2004, Pages 63–71.
[7] FEMA427.; “Primer for Design of Commercial Buildings to Mitigate Terrorist Attacks”; Federal Emergency Management Agency, December 2003, Chapter 4, 1-10.
[8] FEMA426.; “Reference Manual to Mitigate Potential Terrorist Attacks against Building”; Federal Emergency Management Agency, December 2003, Chapter 4, 1-20.
[9] Bangash, N. Y. H.; Bangash, T.; “Shock, Impact and Explosion”; Springer-Verlag, Berlin Heidelberg, 2009, 388-393.
[10] ISC.; “Facts for Steel Buildings, Blast and Progressive Collapse”; American Institute of Steel Construction, 2004, 1-13.
[11] Bangash, N. Y. H.; Bangash, T.; “Explosion-Resistant Buildings”; Springer-Verlag, Berlin Heidelberg, 2006, 67-101.
[12] Brode, H. L.; “Numerical Solution of Spherical Blast Waves”; J. Appl. Phys. 1955, 26, 0021-8979.
[13] Newmark, N. M.; Hansen, R. J.; “Design of Blast Resistant Structures”; Shock and Vibration Handbook, Vol. 3, Eds. Harris and Crede. McGraw-Hill, New York, 1961.
[14] Henrych, J.; “The Dynamics of Explosion and its Use”; Elsevier Scientific Pub. Co., Vol. 1, Amsterdam, 1979.
[15] INBC.; “Iranian National Building Code, Part 10, Design and Construction of Steel Structures”; Ministry of Housing and Urban Development, Tehran, 2008 (In Persian).
[16] INBC.; “Iranian National Building Code, Part 6, Design Loads for Buildings”; Ministry of Housing and Urban Development, Tehran, 2006 (In Persian).
[17] FEMA356.; “Prestandard and Commentary for the Seismic Rehabilitation of Buildings”; Federal Emergency Management Agency, November 2000.
[18] “Specification for Structural Steel Buildings”; (ANSI/AISC 360-10).
[19] ASCE 41-13; “Seismic Evaluation and Retrofit Rehabilitation of Existing Buildings”.
Journal of Structural and Construction Engineering
Volume 3, Issue 3 - Serial Number 8
December 2016
Pages 112-127

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History

  • Receive Date: 03 June 2016
  • Revise Date: 28 October 2016
  • Accept Date: 25 November 2016

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