Finite-Element Modeling of Progressive Failure for Floor-to-Floor Assembly in the Precast Cross-Wall Structures

Tohidi, Mosleh; Janby, Alan

doi:10.1061/(asce)st.1943-541x.0002588

Cited by 10 publications

(7 citation statements)

References 22 publications

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“…On the contrary, the load-bearing performance and stiffness of FEM-5 become unstable due to the fracture of the steel beam flanges in the tension zone. These findings underscore the significant role of the connection types in influencing the load-bearing capacity and structural stability, with FEM-6 demonstrating a superior performance in these aspects [24][25][26][27].…”

Section: Comparison Of Fem-5 and Fem-6mentioning

confidence: 71%

Collapse Resistance of Composite Structures with Various Optimized Beam–Column Connection Forms

Wang,

2023

J. Compos. Sci.

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Steel–concrete composite structures are widely used in composite frame structures and super high-rise buildings. However, the lack of relevant building design standards to ensure their structural stability under extreme conditions has led to potential failures in beam–column connections due to excessive loads. These failures can trigger the progressive collapse of high-rise buildings, resulting in severe casualties. In this study, a comparative numerical analysis was conducted to evaluate the collapse resistance of composite structures in the event of a middle-column loss scenario, focusing on six commonly used beam–column connections. The results show that while the six connections exhibit minimal differences under normal operating conditions, they display significant variations when subjected to extreme loads. Furthermore, a design concept is proposed to enhance the collapse capacity of these structures, and its effectiveness is validated via analysis.

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Section: Comparison Of Fem-5 and Fem-6mentioning

confidence: 71%

Collapse Resistance of Composite Structures with Various Optimized Beam–Column Connection Forms

Wang,

2023

J. Compos. Sci.

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“…It should be noted at this point that the columns' linear-elastic behaviour was supported by the lack of damage to these elements during the test. The ABAQUS concrete damage plasticity model [12,[41][42][43][44][45] was used for the concrete in the slabs, including concrete cracking and crushing for tensile and compressive behaviour, respectively. Compression was defined from Eurocode 2 [40] considering the mechanical parameters given in Table 1.…”

Section: Fe Modelmentioning

confidence: 99%

“…These approaches can demonstrate (or not) that the structure has a minimum level of robustness and highlight potential areas for improvement, extracting conclusions to increase the resilience of a structure against accidental actions. Research studies to date have concentrated on both computational simulations (e.g., [3][4][5][6][7][8][9][10][11][12][13][14][15][16]) and experimental analysis (e.g., [17][18][19][20][21][22][23][24][25][26][27][28]), together with studies of real events of progressive collapse [29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

A Parametric Computational Study of RC Building Structures under Corner-Column Removal Situations

et al. 2020

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Building progressive collapse is currently one of the hottest topics in the structural engineering field. Most of the research carried out to date on this topic has been focused on the structural analysis of the failure of one or more columns in a building to determine the Alternative Load Paths (ALPs) the structure can activate. Past research was mainly focused on extreme situations with high loads and large structural deformations and, to a lesser extent, research looked at lower loads used in design accidental situations, which requires a different set of assumptions in the analysis. This paper describes a study aimed at analysing accidental design situations in corner-column removal scenarios in reinforced concrete (RC) building structures and evaluating the available real ALPs in order to establish practical recommendations for design situations that could be taken into account in future design codes. A wide parametric computational analysis was carried out with advanced Finite Element (FE) models which the authors validated by full-scale tests on a purpose-built building structure. The findings allowed us to: (i) establish design recommendations, (ii) demonstrate the importance of Vierendeel action and (iii) recommend Dynamic Amplification Factors (DAFs) for design situations.

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“…The review clearly shows that preventing progressive collapse in precast structures is still a serious challenge. In this paper, to study the adequacy and applicability of the TF method in British Standard, Eurocodes, and DoD 2013 extensive parametric 3D analysis of floor-to-floor systems has been conducted, using the developed method proposed by authors [43]. The results obtained will improve…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, to study the adequacy and applicability of the TF method in British Standard, Eurocodes, and DoD 2013 extensive parametric 3D analysis of floor-to-floor systems has been conducted, using the developed method proposed by authors [43]. The results obtained will improve the understanding of the mechanism of how tie bars will contribute to the resistance of loads, for structures subjected to local damage.…”

Section: Introductionmentioning

confidence: 99%

The Progressive Collapse Behavior of Precast Floor-to-Floor Connections Using Longitudinal and Transverse Ties

Tohidi,

Janbey,

B-Jahromi

2024

The 6th International Conference on Numerical Modelling in Engineering

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This paper involves a fundamental study of a numerical method for progressive collapse resistance design of floor-to-floor joints in precast cross-wall structures. It presents a 3D numerical study of a floor-to-floor system with longitudinal and transverse ties. The model is also used to derive the post-bond behavior and the mechanism of forming catenary action concerning the bond behavior in precast cross-wall structures. The obtained results indicated the adequacy and applicability of the code specifications in British Standard, Euro Codes, and DoD 2013. Discrepancies in the tie-force between the numerical results and codified specifications have suggested an inappropriate use of the current TF method, hence, an improved model based on the numerical results has been proposed to address this concern. To the authors’ best knowledge, this is the first numerical study to investigate the behavior of floor-to-floor joints following the removal of wall support in typical precast cross-wall structures when considering bar fracture and pull-out failure mode..

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Finite-Element Modeling of Progressive Failure for Floor-to-Floor Assembly in the Precast Cross-Wall Structures

Cited by 10 publications

References 22 publications

Collapse Resistance of Composite Structures with Various Optimized Beam–Column Connection Forms

Collapse Resistance of Composite Structures with Various Optimized Beam–Column Connection Forms

A Parametric Computational Study of RC Building Structures under Corner-Column Removal Situations

The Progressive Collapse Behavior of Precast Floor-to-Floor Connections Using Longitudinal and Transverse Ties

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