Progressive Collapse Fragility Models of Rc Framed Buildings Based on Pushdown Analysis

Brunesi, Emanuele; Nascimbene, Roberto; Parisi, Fulvio

doi:10.7712/100016.2155.5285

Cited by 6 publications

(6 citation statements)

References 51 publications

(122 reference statements)

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“…In previous studies [85][86][87][88], considerations were also given for study of entire frame system of a buildings and bridge structures under synergetic effects of combined blastimpact loads resulting partial or total progressive collapse.…”

Section: Response Of Structures Under Blastmentioning

confidence: 99%

Structures under Synergetic Effects of Combined Blast and Impact Loads: A State‐of‐the‐Art Review

Abebe

Mohammed

2022

Advances in Civil Engineering

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When the effect of combined blast induced shock wave and fragment penetration impact load is sufficiently large enough to induce severe damage in structures compared to individual actions of only-blast and only-impact load, this scenario is called synergetic effect of simultaneous actions. The combined nature of those dual actions aggravates damage and collapses of structures. This paper presented the state-of-the-art review on effect of different parameters, dynamic responses, failure types, and damage mitigation techniques for structures prone to combined actions of blast induced shock wave and fragment impact loads based on findings of experimental, numerical, and analytical research works conducted in previous literature.

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Section: Response Of Structures Under Blastmentioning

confidence: 99%

Structures under Synergetic Effects of Combined Blast and Impact Loads: A State‐of‐the‐Art Review

Abebe

Mohammed

2022

Advances in Civil Engineering

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“…The methods proposed in [77,78] were used in order to quantify and compare column removal scenario results from the aspect of the risk of progressive collapse of the structure. Damage limit states (LS) of the structure were determined for the results obtained using the NDA method.…”

Section: Damage Limit Statesmentioning

confidence: 99%

“…(redundancy) [7]. Structures designed in accordance with recommendations for seismically resistant buildings show lower fragility than those that are not designed in accordance with seismic regulations [77]. After a column is removed, a beam with a double span is formed, so that the lower and side reinforcement should be continued, which is necessary in seismically active areas.…”

Section: Conclusion and Recommendationsmentioning

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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“…Non-linear static analysis is helpful in evaluating the resilient and collapse failure limits of the system, even though it cannot account for the dynamic effect due to the sudden missing of columns studied by E.Brunesi, F.Parisi, etal. [7]. "Experimental studies [14], [17], [18]; carried out on RC beam-column sub assemblages have shown the inherent ability to better resist progressive collapse of the specimens with seismic detailing".…”

Section: Introductionmentioning

confidence: 99%

Progressive Collapse Study of Seismically Designed Low Rise Reinforced Concrete Framed Structure

Sheikh¹,

Banday²,

Hussain³

2021

cea

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In this study, linear and non-linear static analysis of low-rise models representing two-bay two-story and three-bay three-story reinforced concrete framed structures designed as per Indian standard codes (IS 450:2000 and IS 1893:2016 for the high seismic region using Envelope loading combination are assessed with and without the Guidelines of U.S. (GSA) General Services Administration. The purpose of this study is to describe the applicability of Finite Element software in assessing the behavior of seismically designed low rise structure before and after losing vertical structural element column with and without considering dynamic increase factor, and the results indicate demand resistance ratios acquired from elastic linear analysis and the hinge formation pattern obtained from non-linear elastic analysis are similar for Envelope loading combination and GSA loading combination, thus the dynamic increase factor of 2 recommended by the U.S. General Services Administration guidelines for static analysis can be underestimated for low-rise reinforced concrete framed models designed seismically as far as progressive collapse resistance is considered, since both types of loading combinations (in which one combination considers only normal design load path method while the other combination considers alternate load path methods) acquire same type of results, thus confirms seismically designed low rise models does possess inherent property towards progressive collapse resistance. This study provides a good example and summary for the construction industry and can be used by design engineers while designing low-rise progressive collapse-resistant structures.

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Progressive Collapse Fragility Models of Rc Framed Buildings Based on Pushdown Analysis

Abstract: Abstract. Partial or total progressive collapse under abnormal loading conditions (e.g. deliberate terrorist attacks, uncontrolled gas releases, and vehicle or aircraft impacts

Cited by 6 publications

References 51 publications

Structures under Synergetic Effects of Combined Blast and Impact Loads: A State‐of‐the‐Art Review

Structures under Synergetic Effects of Combined Blast and Impact Loads: A State‐of‐the‐Art Review

Fragility and robustness analysis of a multistorey RC building

Progressive Collapse Study of Seismically Designed Low Rise Reinforced Concrete Framed Structure

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