Fire (Post-fire) Behaviour of Concrete or Steel Material and Structural Members

A special issue of Fire (ISSN 2571-6255). This special issue belongs to the section "Fire Risk Assessment and Safety Management in Buildings and Urban Spaces".

Deadline for manuscript submissions: closed (15 July 2023) | Viewed by 1718

Special Issue Editors

College of Water Resources and Architectural Engineering, Northwest A&F University, No. 23, Wei Hui Rd., Xianyang 712100, China
Interests: engineering materials; cementitious composite; fiber-reinforced cementitious composite; UHPC; rheology; high-temperature properties; geopolymer; nanomaterials; microstructure; multiscale
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Guest Editor
School of Environment and Civil Engineering, Jiangnan University, Wuxi, China
Interests: cementitious composites; concrete
State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, China
Interests: reinforced concrete; fire test

Special Issue Information

Dear Colleagues,

Concrete materials and structures are the most important components of current buildings, such as beams, columns, slabs, and other structural members, which are widely used in urban multi-story buildings, high-rise buildings, and super high-rise buildings. However, in the event of a fire, due to the effects of high temperature, flue gas movement and hot air convection in combustion, RC structural elements are often seriously damaged, which affects the overall safety of the structure. Scholars have carried out a lot of research on the fire resistance of concrete or steel material and structural elements, but most studies focus on ordinary concrete material itself or a single member. Therefore, it is still a challenge to accurately and comprehensively describe the fire behavior of concrete materials and structures under actual working conditions.

This Special Issue aims to collect information on the fire or post-fire behavior of RC structural elements, including new concrete materials, steel, prestressed concrete, cast-in-place concrete structures, prefabricated concrete structures, etc. In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) tests, numerical methods, and analytical models to study the mechanical behavior and failure patterns of concrete material and structural members under high temperatures or after fire.

Dr. Li Li
Dr. Cong Zhang
Dr. Mehran Khan
Dr. Yong Wang
Guest Editors

Manuscript Submission Information

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Keywords

  • concrete or steel materials
  • RC structures
  • fire spread
  • fire resistance
  • fire test
  • post-fire
  • numerical simulation
  • theoretical analysis

Published Papers (1 paper)

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Research

15 pages, 8099 KiB  
Article
Experimental Study on the Properties of Mixed-Fiber Concrete Shield Tunnel Segments Subjected to High Temperatures
by Yajun Zhang, Yao Wang and Zhaoqing Ren
Fire 2023, 6(1), 17; https://doi.org/10.3390/fire6010017 - 06 Jan 2023
Cited by 3 | Viewed by 1223
Abstract
In order to study the mechanical and damage behavior of concrete shield tunnel segments under a high temperature, two self-compacting concrete and three mixed-fiber (steel and polypropylene fiber) self-compacting concrete test blocks were designed. The influence of several key factors, including fire duration, [...] Read more.
In order to study the mechanical and damage behavior of concrete shield tunnel segments under a high temperature, two self-compacting concrete and three mixed-fiber (steel and polypropylene fiber) self-compacting concrete test blocks were designed. The influence of several key factors, including fire duration, pre-loading, and concrete type, on the fire behavior of concrete shield tunnel segments were studied. The results show that the type of fiber and pre-loading have an important influence on crack development in concrete shield tunnel segments. Compared with undoped segments, cracks in segments with steel fibers and polypropylene fibers appeared later, and the average crack spacing decreased. The pre-loading has an important effect on the vertical deformation before and after the temperature rise. As the load level increases, so does the deformation after the temperature rise. The influence of the initial load level should be considered when designing the fire resistance of the segment. Full article
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