Numerical modeling of the fire–structure behavior of steel beam-to-column connections

Lee, Chen Hung; Chiou, Yaw Jeng; Chung, Hsiao‐Wen; Chen, Chien Jung

doi:10.1016/j.jcsr.2011.02.014

Cited by 16 publications

(4 citation statements)

References 19 publications

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“…In addition, analytical formulas for assessing loadbearing capacity have been developed for beams and columns with thermal gradients [15, 44 -50], for composite elements such as concrete filled hollow steel section or I-column or beam sections with concrete between the flanges [16,51] and also for beam-column connections [89]. On the other hand, an analytical calculation method was developed for structural elements located outside the burning building and subjected to heat coming from external flames passing through windows [15,16,52].…”

Section: (B) Analytical Formulasmentioning

confidence: 99%

International R and D Roadmap for Fire Resistance of Structures Summary of NIST/CIB Workshop

Yang¹,

Bundy²,

Gross³

et al. 2015

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This report summarizes the results of the global meeting to develop the International R&D Roadmap for Fire Resistance of Structures (the Roadmap) held May 21-22, 2014, in Gaithersburg, Maryland. The workshop was sponsored by the National Institute of Standards and Technology (NIST) and the International Council for Research and Innovation in Building and Construction (CIB) and hosted by NIST. The workshop provided a forum to identify and discuss the research and development needs and programs to implement to advance technical solutions in order to improve the fire resistance of structures through greater use of existing technologies, development and deployment of emerging technologies, and development and implementation of standards and codes for performance-based engineering design. In preparation for the workshop, NIST commissioned three white papers-one on concrete structures, one on steel structures, and one on timber structures-written by topic experts in the respective fields.

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Section: (B) Analytical Formulasmentioning

confidence: 99%

International R and D Roadmap for Fire Resistance of Structures Summary of NIST/CIB Workshop

Yang¹,

Bundy²,

Gross³

et al. 2015

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“…The dog-bone beam was first used by Engelhardt [22] to increase the seismic resistance of steel frame. Lee [23] found that that the adoption of the dog-bone beam can also avoid the fracture of the connection region in a fire situation. …”

Section: Geometry Of the Modelmentioning

confidence: 99%

Strategies to increase the robustness of endplate beam–column connections in fire

Wang

2013

Journal of Constructional Steel Research

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“…Moreover, the location of the cut section and the depth of circular cutting will affect the behaviour of a beam in fire. Using numerical analysis, Lee et al [15] found that, unlike ordinary beam-to-column connections, RBS joints subject to fire, mainly failed by local buckling at the top flange and web of the RBS region. However, the effects of the geometrical size of the RBS zone and the beam-end restraints on the fire resistance of RBS joint have not been investigated.…”

Section: Introductionmentioning

confidence: 99%

Behaviour of restrained steel beam with reduced beam section exposed to fire

Guo

Huang

2016

Journal of Constructional Steel Research

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Reduced beam section (RBS) is one of the connection types, which is economical and popular for use in steel moment frames in seismic regions. By cutting some portions of the beam flanges near the column face, the RBS connections are designed to form plastic hinge within the RBS zone so that it could enhance the structural seismic performance. However, the steel beams with RBS connections have to provide robustness when exposed to fire. Although the responses of ordinary steel beams to elevated temperatures have been investigated over the last few decades, there has been very limited research on the behaviour of steel beams, with RBS connections in fire. This study includes a series of numerical analysis, to investigate the high-temperature performance of steel beams with RBS connections, compared to the responses of ordinary steel beams to fire. Various parameters have been considered, including the types of fire curves, the levels of beam-end restraints and the cutting profiles of the RBS connections. Overall, the deformation shape of RBS beams at high temperature is similar to that of ordinary steel beams, whereas the RBS beams could have longer period of fire resistance. The cut section actually provides both rotational and axial ductility/deformability to the connection, enhancing its fire resistance. Moreover, the cutting length, proposed by EC8, is also adequate for fire design. The minimum distance, between the RBS zone and the beam-end, proposed by FEMA-350 has been shown sufficient.

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Numerical modeling of the fire–structure behavior of steel beam-to-column connections

Cited by 16 publications

References 19 publications

International R and D Roadmap for Fire Resistance of Structures Summary of NIST/CIB Workshop

International R and D Roadmap for Fire Resistance of Structures Summary of NIST/CIB Workshop

Strategies to increase the robustness of endplate beam–column connections in fire

Behaviour of restrained steel beam with reduced beam section exposed to fire

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