Dynamic progressive collapse of steel moment frames under different fire scenarios

Zhu, Yan Fei; Chen, Chang Hong; Huang, Ying; Huang, Zhao Hui; Yao, Yao; Keer, Leon M.

doi:10.1016/j.jcsr.2020.106256

Cited by 8 publications

(3 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, for steel frame during fire, several studies have analysed the elastoplastic behaviour during a fire (Wang and Moore, 1995;Rubert and Shcaumann, 1986), the analytical result simulating the Cardington test result by Gillie et al (2001), and the behaviours of multiple storied steel frames by Flint et al (2007), Rackauskaite et al (2019), and Lange et al (2012), respectively, high-strength steel frame (Shakil et al, 2018), braced frames (Sun et al, 2012), and steel frames under travelling fires (Rackauskaite et al, 2017). Dynamic analyses of the steel frame focus on progressive collapse (Jiang and Li, 2017;Zhu et al, 2020), and beam connection (Liu et al, 2015). Accordingly, analyses considering the creep effect of steel material, which is a typical material permanent for deformation at elevated temperatures, have been conducted (Wang and Zhang, 2017;Hantouche et al, 2018), respectively.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Proposal of steel stress-strain relationships and simple analytical models of beams considering strain-rate effects at elevated temperatures

Ozaki

Umemura

2022

JSFE

View full text Add to dashboard Cite

PurposeIn this study, engineering stress-strain relationships considering an effect of strain rate on steel materials at elevated temperatures were formulated and a simplified analytical model using a two-dimensional beam element to analytically examine the effect of strain rate on the load-bearing capacity and collapse temperature was proposed.Design/methodology/approachThe stress-strain relationships taking into account temperature, strain, and strain rate were established based on the past coupon test results with strain rate as the test parameter. Furthermore, an elasto-plastic analysis using a two-dimensional beam element, which considered the effect on strain rate, was conducted for both transient- and steady-state conditions.FindingsThe analytical results agreed relatively well with the test results, which used small steel beam specimens with a rectangular cross-section under various heating rates (transient-state condition) and deformation rates (steady-state condition). It was found that the bending strength and collapse temperature obtained from the parametric analyses agreed relatively well with those evaluated using the effective strength obtained from the coupon tests with strain equal to 0.01 or 0.02 under the fast strain rates.Originality/valueThe effect of stress degradation, including the stress-strain relationships at elevated temperature, was mitigated by considering the effect of strain rate on the analytical model. This is an important point to consider when considering the effect of strain rate on steel structural analysis at elevated temperatures to maintain analytical stability unaccompanied by the stress degradation.

show abstract

Section: Introductionmentioning

confidence: 99%

“…, 2017). Dynamic analyses of the steel frame focus on progressive collapse (Jiang and Li, 2017; Zhu et al. , 2020), and beam connection (Liu et al.…”

Section: Introductionmentioning

confidence: 99%

Proposal of steel stress-strain relationships and simple analytical models of beams considering strain-rate effects at elevated temperatures

Ozaki

Umemura

2022

JSFE

View full text Add to dashboard Cite

show abstract

“…Dynamic analysis was used for this purpose. A method was proposed to consider the heat caused by a fire in the progressive collapse process [50]. The progressive collapse behavior of steel frames with different beam-column connections was investigated.…”

Section: Introductionmentioning

confidence: 99%

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

Shokhoohfar

Kaafi

2022

IJE

View full text Add to dashboard Cite

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.

show abstract

Construction of steel members

Mazloom

2024

Construction of Earthquake-Resistant Concrete and Steel Structures

View full text Add to dashboard Cite

Dynamic progressive collapse of steel moment frames under different fire scenarios

Cited by 8 publications

References 32 publications

Proposal of steel stress-strain relationships and simple analytical models of beams considering strain-rate effects at elevated temperatures

Proposal of steel stress-strain relationships and simple analytical models of beams considering strain-rate effects at elevated temperatures

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

Construction of steel members

Contact Info

Product

Resources

About