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Progressive Collapse Resistance of Reinforced Concrete Structures

  • M. Sasani
Chapter

Abstract

Experimental and analytical studies on a two-span fixed-end RC beam, designed satisfying the ACI structural integrity requirements and subjected to increasing vertical displacement at the middle, demonstrate the development of compressive and tensile membrane actions. Progressive collapse resistance of an actual 11-story reinforced concrete structure following a severe initial damage is studied experimentally and analytically. The initial damage was caused by simultaneous explosion (removal) of four first floor neighboring columns and two second floor perimeter deep beam segments. The structure resisted progressive collapse with a maximum permanent vertical displacement at the top of the exploded columns of only about 56 mm (2.2 in.). Beam growth and in turn the development of the beam axial compressive force are modeled and discussed. It is demonstrated that such axial compressive force can significantly affect progressive collapse resistance of the structure. In the actual 6-story structure discussed in this chapter, the development of bidirectional Vierendeel (frame) action is identified as the dominant mechanism in redistribution of loads. This is because of the existence of moment connections and the interaction between beams with columns and infill walls; critical beams deform in double curvature and provide the shear resistance needed to redistribute the loads.

Keywords

Reinforced Concrete Plastic Hinge Reinforced Concrete Beam Progressive Collapse Reinforced Concrete Building 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This chapter is based upon research supported by the National Science Foundation Award No. CMMI-0547503, the US Department of Homeland Security under Award No. 2008-ST-061-ED0001, and the General Services Administration Award No. GS09P06KTM0019. The views and conclusions contained in this document are those of the author and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the supporting organizations. The help provided by Drs. Marlon Bazan and Serkan Sagiroglu in the experimental program as well as analytical studies is acknowledged. The author greatly appreciates the support provided by Mark and Douglas Loizeaux (Controlled Demolition Inc) and James Redyke (Dykon Explosive Demolition Corp.); without their help this research was not possible to be completed.

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Department of Civil and Environmental Engineering, 421 Snell Engineering CenterNortheastern UniversityBostonUSA

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