Macro modeling of slab-column connections in progressive collapse with post-punching effect

Mousapoor, Esmaeil; Ghiasi, Vahed; Madandoust, Rahmat

doi:10.1016/j.istruc.2020.06.025

Cited by 5 publications

(2 citation statements)

References 17 publications

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“…They reported that the addition of steel fibers to the concrete mix improved the hysteretic behavior of slab-column connections [21]. Several researchers have studied the progressive collapse and robustness of building structures due to column or joint collapse [22][23][24][25][26]. Setiawan et al (2019) performed numerical analysis on slab-column connections subjected to cyclic loading and captured the characteristics of cyclic degradation observed in experiments with nonlinear finite analysis and suggested a simplified design method for punching shear [27].…”

Section: Literature Reviewmentioning

confidence: 99%

Numerical Simulation on Dynamic Behavior of Slab–Column Connections Subjected to Blast Loads

2021

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Although many studies on the blast-resistant performance of structures have focused mainly on single members such as beams and columns, there is little research on the behavior of joints that are subjected to blast loads. In this study, the structural behavior of a slab–column connection subjected to blast load was investigated using a numerical analysis method. LS-DYNA was used as a finite element analysis program, and in order to improve the accuracy of numerical analysis, mesh size, material model, and simulation method of blast load were determined through preliminary analysis. The effect of different restraints of the joints, depending on the position of the columns in the slab, on the blast resistance performance was investigated. As a result, the highly confined slab-interior column connection showed better behavior than other edge and corner columns. The drop panel installed between the lower column and the slab was effective in improving the blast-resistance performance of the slab–column connection. For a more accurate evaluation of blast resistance performance, it was suggested that various evaluation factors such as ductility ratio, reinforcing stress, and concrete fracture area can be considered along with the support rotation, which is an important evaluation factor suggested by many standards.

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Section: Literature Reviewmentioning

confidence: 99%

Numerical Simulation on Dynamic Behavior of Slab–Column Connections Subjected to Blast Loads

2021

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“…Each study evaluated part of this phenomenon. Many studies have been performed to investigate the contribution of structural members such as beams and columns in the vicinity of the removed column and the effect of different lateral bearing systems against progressive collapse [22][23][24][25][26][27][28][29][30]. In other studies, different types of progressive collapse analysis methods were investigated [31][32][33][34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Retrofitting and Rehabilitation in Steel Moment-resisting Frame with Prestressed Concrete Slab against Progressive Collapse Potential

Shokhoohfar

Kaafi

2022

IJE

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Diaphragms are a fundamental part of the earthquake-resistant system, and in terms of rigidity, it is essential to transmit dynamic loads on a base of the structure. Also, floor openings on the response of buildings against progressive collapse are issues that have received less attention. In this study, floor opening surfaces and their positions on the progressive collapse potential of steel moment-resisting frame (SMRF) buildings were investigated according to the alternate load path method. Moreover, to retrofit and rehabilitate the two-way reinforced concrete (RC) slabs against a progressive collapse, two strategies, prestressed concrete slabs and installing carbon fiber reinforced polymer sheets on the surface of the old concrete slab, were proposed and six-story SMRF buildings were simulated using the finite element method. The maximum axial force around the removal column is 20% greater than the corresponding values on the floor opening is in the corner of the plan and the appropriate performance of the prestressed concrete slab leads to the load distribution in the ceiling diaphragm.

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Strain-Based Grid Beam Model for Predicting Punching Failure of Slab–Column Connections

Erdoğan

2023

Arab J Sci Eng

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Macro modeling of slab-column connections in progressive collapse with post-punching effect

Cited by 5 publications

References 17 publications

Numerical Simulation on Dynamic Behavior of Slab–Column Connections Subjected to Blast Loads

Numerical Simulation on Dynamic Behavior of Slab–Column Connections Subjected to Blast Loads

Retrofitting and Rehabilitation in Steel Moment-resisting Frame with Prestressed Concrete Slab against Progressive Collapse Potential

Strain-Based Grid Beam Model for Predicting Punching Failure of Slab–Column Connections

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