Effect of Structural Redundancy on Progressive Collapse Resistance Enhancement in RC Frame Structures

Ameri, Mohammad Reza; Massumi, Ali; Masoomi, Hassan

doi:10.1061/(asce)cf.1943-5509.0001244

Cited by 17 publications

(7 citation statements)

References 31 publications

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“…(2018) have tested a four-story building on typical soil profile of the Ganges basin, India. Ameri et al . (2019) developed numerical model to investigate the effect of progressive collapse on redundancy of reinforced concrete structures.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on structural response of multi-story buildings subjected to differential settlement of its foundations

Chen

Hanna

2023

IJSI

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PurposeThis article aims to address an outstanding problem dealing with the structure of multi-story buildings subjected to differential settlement of the building's foundation.Design/methodology/approachDifferential settlement between foundation units of multi-story structures has been responsible for causing damage to buildings and often catastrophic failure and loss of life. The dynamic changes in the loading conditions of the structure and the changes in the underlying ground due to environmental changes are causing this undesirable differential settlement, which is manifested in the form of additional stresses in beams, columns and distortion of the structure elements. This study presents the results of an experimental investigation on a prototype model of a multi-story building subjected to differential settlement of the building's foundation. The model is a four-floor aluminum structure, instrumented to measure the stresses induced in the structure elements due to the settlement of a center, edge and corner column, respectively, which represent the critical conditions of the structure.FindingsThe experimental results of this study can be used as a guideline for the design of structures.Originality/valueThe current study is the original research developed by the authors.

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Section: Introductionmentioning

confidence: 99%

Experimental investigation on structural response of multi-story buildings subjected to differential settlement of its foundations

Chen

Hanna

2023

IJSI

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“…Over recent decades, with the sudden increase of accidents and terrorist activities, some progressive collapse accidents have occurred, causing serious casualties, property losses, and social impacts [1][2][3][4]. The safety of the structure has drawn paramount attention.…”

Section: Introductionmentioning

confidence: 99%

Applications of Energy-Based Evaluation Method of Element Importance to Grid Structures

Wang

Feng

et al. 2022

Symmetry

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It is necessary to perform the robustness design for the progressive collapse resistance of grid structures. However, there is a lack of a comprehensive index to evaluate the member importance. An evaluation method on element importances is proposed based on the element strain energy and element removal technology. The element importance coefficients can be calculated based on the change of strain energy vectors after the removal of analyzed elements using ANSYS. The influence of the loading pattern, boundary condition, and geometric parameters of square pyramid grid structures are investigated. Moreover, the other three types of spatial grids are introduced to explore the difference in element importance distributions. The considerable difference in element importance coefficient distribution for different grid structures shows that it is essential to establish a general program for rapid model robustness analysis. This principle in this work can be easily integrated into the existing design and analysis platform to make up for this shortcoming.

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“…Most papers dealing with robustness and progressive collapse are concerned with RC frame structures [34,42]. Much fewer papers analyse frame structures stiffened by walls -dual type, i.e.…”

Section: Introduction and Literature Overviewmentioning

confidence: 99%

Fragility and robustness analysis of a multistorey RC building

2021

JCE

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The robustness of a reinforced concrete (RC) five-storey building (frame system stiffened by walls) is analysed in the paper. A high ductility class structure is designed in accordance with structural Eurocodes. The response of the structure to eight different scenarios of the ground floor vertical element loss is analysed. Nonlinear Static Analysis (NSA) and Nonlinear Dynamic Analysis (NDA) methods are used for the robustness analysis. Fragility curves of the building are derived from statistical analysis of these results. The values obtained through NSA and NDA, damage limit states of the system, and fragility curves, are compared. The influence of the position of the removed element on robustness of the structure is also analysed.

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Effect of Structural Redundancy on Progressive Collapse Resistance Enhancement in RC Frame Structures

Cited by 17 publications

References 31 publications

Experimental investigation on structural response of multi-story buildings subjected to differential settlement of its foundations

Experimental investigation on structural response of multi-story buildings subjected to differential settlement of its foundations

Applications of Energy-Based Evaluation Method of Element Importance to Grid Structures

Fragility and robustness analysis of a multistorey RC building

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