Influence of modeling criteria on the response of steel frame structures to column removal
Keywords:progressive collapse, steel frame, robustness, dynamic increase factor, deformation capacity
Structures for buildings, as well as other engineering structures, must be designed to withstand local damage without compromising the stability and load bearing capacity of the structural system. In case of framed structures, critical scenarios typically involve damage or loss of a column, which case be followed by the spread of the damage to neighboring elements and thus triggering the generalized (or progressive) collapse. The paper presents the results of numerical studies carried out on current building frame typologies, designed to withstand gravity and seismic loads. Accidental situations include different column removal scenarios, and methods of analysis include both static and dynamic analyzes. The ability to redistribute loads and dynamic behavior associated with sudden column removal depend both on the local response (strength, ductility) and on lateral load resisting behavior.
EUROPEAN COMMITTEE FOR STANDARDISATION (CEN), Eurocode 1: Actions on structures – Part 1-7: Accidental actions, Brussels, 2006.
U.S. DEPARTMENT OF DEFENSE, UFC 4-023-03. Design of Buildings to Resist Progressive Collapse, 2016.
DINU, F., DUBINA, D., MARGINEAN, I., Improving the structural robustness of multi-story steel-frame buildings, Struct. Infrastruct. Eng., 11, 8, pp. 1028–1041, 2015.
DINU, F., MARGINEAN, I., DUBINA, D., PETRAN, I., Experimental testing and numerical analysis of 3D steel frame system under column loss, Eng. Struct., 113, pp. 59–70, Apr. 2016.
CHEN, C.H., ZHU, Y.F., YAO, Y., HUANG, Y., LONG, X., An evaluation method to predict progressive collapse resistance of steel frame structures, J. Constr. Steel. Res., 122, pp. 238–250, Jul. 2016.
LIN, S.-C., YANG, B., KANG, S.-B., XU, S.-Q., A new method for progressive collapse analysis of steel frames, J. Constr. Steel. Res., 153, pp. 71–84, Feb. 2019.
EL-TAWIL, S., LI, H., KUNNATH, S., Computational simulation of gravity-induced progressive collapse of steel-frame buildings: Current trends and future research needs, J. Struct. Eng., 140, 8, 2014.
ADAM, J.M., PARISI, F., SAGASETA, J., LU, X., Research and practice on progressive collapse and robustness of building structures in the 21st century, Eng. Struct., 173, pp. 122–149, 2018.
COMPUTERS AND STRUCTURES, INC., Walnut Creek, CA 94596 USA, Structural software for analysis and design | SAP2000.
MDRAP (Ministry of Regional Development and Public Administration of Romania), P100- 1/2013 – Code for the seismic design of buildings. Part I–Design rules for buildings, Monitorul Oficial, Part I, issue 558 (in Romanian), Bucharest, Romania, 2013.
AMERICAN SOCIETY OF CIVIL ENGINEERS (ASCE), ASCE/SEI 41–13 Seismic rehabilitation of existing buildings, Reston, VA, 2014.
DINU, F., MARGINEAN, I., DUBINA, D., Experimental testing and numerical modelling of steel moment-frame connections under column loss, Eng. Struct., 151, pp. 861–878, Nov. 2017.
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