Progressive Collapse-Resisting Capacity of Steel Moment Frames considering Panel Zone Deformation

Abstract

Panel zone deformation is known to be a major parameter affecting the nonlinear behaviour of moment resisting steel frames subjected to earthquake loads, especially in weak column-strong beam conditions. In this study, the reinforcing effect of the panel zone on the progressive collapse and the capacity of moment resisting steel frames was investigated with the aid of nonlinear dynamic analysis. Both gravity load-resisting system structures with weak panel zones and lateral load-resisting system structures with strong panel zones were studied. The analysis results show that the panel zone deformation is highly dependent on the location of removed columns. The panel zone deformation turns out to be very significant when a column adjacent to an exterior panel zone is removed. On the other hand, the panel zone effect is not significant if a column adjacent to an interior panel zone is removed. As the number of stories increases, the effect of a weak panel zone on the overall behaviour decreases regardless of the panel zone strength and the location of any column removed.

Keywords

steel moment resisting frames panel zone progressive collapse nonlinear dynamic analysis

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References

ACI 318 (2002). Building Code Requirements for Structural Concrete (ACI 318–02) and Commentary (ACI 318R-02), American Concrete Institute, Farmington Hills, Michigan.

AISC (2000). Load Resistance Factor Design Specification for Structural Steel Buildings, American Institute of Steel Construction, Chicago, IL.

ASCE 7–05 (2005). Minimum Design Loads for Buildings and Other Structures, American Society of Civil Engineers, Reston, VA.

DoD (2005). Unified Facilities Criteria (UFC) – Design of Buildings to Resist Progressive Collapse, Department of Defense, Washington, D. C.

Eurocode 1 (2002). Actions on Structures, European committee for standardization, Brussels, Belgium.

Gupta

and Krawinkler

(1999). Seismic Demands for Performance Evaluation of Steel Moment Resisting Frame Structures (SAC Task 5.4.3), John A. Blume Earthquake Engineering Research Center Report No. 132, Department Of Civil Engineering, Stanford University, Stanford, CA.

GSA (2003). Progressive Collapse Analysis and Design Guidelines for New Federal Office Buildings and Major Modernization Projects, The U.S. General Services Administration, Washington, D. C.

ICC (2006). International Building Code, International Code Council, Falls Church, VA.

KBC (2005). Korean Building Code, Architectural Institute of Korea, Seoul, Korea.

10.

Khandelwal

and El-Tawil

(2007). “Collapse behavior of steel special moment resisting frame connections”, Journal of Structural Engineering, ASCE, in press.

11.

Khandelwal

El-Tawil

and Sadek

(2008). “Progressive collapse analysis of seismically designed steel braced frames”, Journal of Constructional Steel Research, in press.

12.

Kim

and An

(2008). “Evaluation of progressive collapse potential of steel moment frames considering catenary action”, The Structural Design of Tall and Special Buildings, in press.

13.

Kim

and Kim

(2007). “Analytical investigation of collapse resistance in steel moment frames”, Proceedings of the First International Workshop on Performance, Protection & Strengthening of Structures under Extreme Loading, Whistler, Canada.

14.

Kim

and Kim

(2008a). “Assessment of progressive collapse-resisting capacity of steel moment frames”, Journal of Constructional Steel Research, in press.

15.

Kim

and Kim

(2008b). “Investigation of progressive collapse-resisting capability of steel moment frames using push-down analysis”, Journal of Performance of Constructed Facilities, ASCE, in press.

16.

Mazzoni

McKenna

Scott

M.H.

and Fenves

G.L.

, eds, (2006). Open System for Earthquake Engineering Simulation, User Command-Language Manual, Pacific Earthquake Engineering Research Center, Berkeley, CA.

17.

Marjanishvili

S.M.

and Agnew

(2006). “Comparison of various procedures for progressive collapse analysis”, Journal of Performance of Constructed Facilities, ASCE, Vol. 20, No. 4, pp. 365–374.

18.

NBC (1996). National Building Code of Canada-1995, National Research Council of Canada, Ottawa, Canada.

19.

Powell

(2005). “Progressive collapse: Case study using nonlinear analysis”, Proceedings of the 2005 Structures Congress and the 2005 Forensic Engineering Symposium, New York, NY.