Progressive Collapse Resistance of RC Frames under a Side Column Removal Scenario: The Mechanism Explained

Abstract

Progressive collapse resistance of RC buildings can be analyzed by considering column loss scenarios. Using finite element analysis and a static test, the progressive collapse process of a RC frame under monotonic vertical displacement of a side column was investigated, simulating a column removal scenario. A single-story 1/3 scale RC frame that comprises two spans and two bays was tested and computed, and downward displacement of a side column was placed until failure. Our study offers insight into the failure modes and progressive collapse behavior of a RC frame. It has been noted that the damage of structural members (beams and slabs) occurs only in the bay where the removal side column is located. Greater catenary action and tensile membrane action are mobilized in the frame beams and slabs, respectively, at large deformations, but they mainly happen in the direction where the frame beams and slabs are laterally restrained. Based on the experimental and computational results, the mechanism of progressive collapse resistance of RC frames at different stages was discussed further. With large deformations, a simplified calculation method for catenary action and tensile membrane action is proposed.

Modelling of Stirrup Confinement Effects in RC Layered Beam Finite Elements Using a 3D Yield Criterion and Transversal Equilibrium Constraints

“…Stirrups exert lateral compressive stresses on concrete as it expands in the transversal directions due to loading, which improves the structural members strength and ductility. In several scenarios the ductility of the reinforced concrete members is of utmost importance, such as in progressive collapse (Menchel et al 2009;Hou and Song 2016;Petrone et al 2016;Rashidian et al 2016) and resistance against blast loading (Lim et al 2016;Codina et al 2016).…”

Theoretical investigations on load‐bearing capacity of RC flat‐plate framed structures subject to middle column loss

“…Typically, an alternate path method is applied by instantaneously removing the potentially damaged member and to assess the progressive collapse resistance of the remaining to ensure alternative load transferring paths to bridge over the missing member. Many experimental studies have been launched to investigate the performance of framed substructures under various column‐removal scenarios. Peng et al conducted six interior slab‐column specimens without structural integrity reinforcement to examine their punching and postpunching behavior.…”

“…The recent events occurring in the United States [5,6] indicate that the civil engineering structures are under increasingly complicated surrounding conditions. Therefore, how to reduce the risk of progressive collapse of structures has gained increasing popularity among researchers and engineers [1][2][3][7][8][9][10][11][12][13][14][15][16][17][18][19] .…”

“…Many experimental studies have been launched to investigate the performance of framed substructures under various column-removal scenarios [1,[10][11][12][13][14][15][16][17] . Peng et al [1] conducted six interior slab-column specimens without structural integrity reinforcement to examine their punching and postpunching behavior.…”

Experimental and Measurement Methods for the Small-Scale Model Testing of Lateral and Torsional Stability

“…The lateral and torsional stability is the main issue for the safety of structures and users from the stages of design to construction in the field of architectural and civil engineering (Kalkan 2014;Hurff and Kahn 2012;Lee 2012a, b;Lee et al 2016;Kim et al 2016;Hou and Song 2016;Petrone et al 2016;Ramin and Fereidoonfar 2015;Srikar et al 2016). Analytical investigations into the lateral and torsional stability have been performed to develop a classical stability theory based on the steel structural members (Horne 1954;Salvadori 1955;Timoshenko 1956;Timoshenko and Gere 1961).…”