High-Performance Steel Structures

A special issue of Buildings (ISSN 2075-5309). This special issue belongs to the section "Building Structures".

Deadline for manuscript submissions: closed (31 August 2024) | Viewed by 2851

Special Issue Editors


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Guest Editor
Department of Civil and Structural Engineering, The University of Sheffield, Sheffield, UK
Interests: thin-walled structures; cold-formed steel structures; high-performance steel structures; lightweight cold-formed steel composite structures; rehabilitation of distressed steel structures

E-Mail Website
Guest Editor
Department of Civil and Structural Engineering, University of Sheffield, Sheffield, UK
Interests: steel structures; thin-walled structures; structural optimisation; earthquake engineering; application of AI in structural design

Special Issue Information

Dear Colleagues,

High-performance steel is a game-changer in the construction industry due to its exceptional properties. This class of steel has superior mechanical properties, including higher strength, better corrosion resistance, cold formability, and improved ductility characteristics compared to traditional steel. The higher strength-to-weight ratio of high-performance steel allows for innovative architectural and structural designs that reduce the carbon footprint, transportation, handling, installation duration, and overall costs. In addition, high-performance steel is environmentally friendly and supports the global movement towards construction waste reduction and energy efficiency, which aligns with the UN's sustainable development goals. Recent advancements in research and technology have driven the development of various high-performance steel forms, such as bimetallic steel, lean duplex stainless steel, weathering steel, and steel with a yield strength of over 1000 MPa, which combines several favourable properties. Advanced forming technology also allows for the development of novel and unconventional section profiles, which are gaining attention from all constructional stakeholders. The use of high-performance steel in construction not only enhances the aesthetic appeal of a structure but also provides better durability and sustainability. We invite authors to submit papers for potential inclusion in this Special Issue, entitled “High-Performance Steel Structures", on themes that may include but are not limited to:

  • High-strength steel structures;
  • Stainless steel structures;
  • Cold-formed steel members;
  • The stability of steel beams and columns;
  • Seismic behaviour of steel structures;
  • Cold-formed steel framed systems;
  • Web crippling of thin-walled sections;
  • The strengthening of steel structures;
  • The optimization of steel members;
  • The sustainability of CFS structures;
  • Machine learning in steel research.

Dr. Mohammad Adil Dar
Dr. Seyed Mohammad Mojtabaei
Guest Editors

Manuscript Submission Information

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Keywords

  • cold-formed steel
  • high-strength steel
  • stainless steel
  • steel in modular construction
  • stability of members
  • steel frames
  • seismic behaviour
  • sustainability
  • structural optimisation
  • steel and composite structures

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Published Papers (2 papers)

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Research

19 pages, 4983 KiB  
Article
Efficacy of IS Code Provisions for Design of Eccentrically Loaded Single Angle Compression Members
by Sai Kota Vivek, Mohammad Adil Dar and Subramanian Narayanan
Buildings 2024, 14(9), 2990; https://doi.org/10.3390/buildings14092990 - 20 Sep 2024
Viewed by 881
Abstract
In practical applications, steel single angles are often subjected to eccentric loading when connected to a gusset plate through one leg only, resulting in complex compression behaviour. This behaviour has not been as extensively studied as that of concentrically loaded members. Various international [...] Read more.
In practical applications, steel single angles are often subjected to eccentric loading when connected to a gusset plate through one leg only, resulting in complex compression behaviour. This behaviour has not been as extensively studied as that of concentrically loaded members. Various international codes of practice offer differed approaches for designing these elements. The literature indicates that the Indian Standard Code IS 800–2007 accurately predicts the axial capacity of eccentrically loaded single angle columns. However, a recent amendment to IS 800 in 2024 introduced modified design provisions. This study is the first to explore the implications of these latest design provisions by comparing them with earlier provisions and experimental strengths reported in the literature. Initially, the design strengths as per the previous and latest design provisions for various Indian Standard Angles (ISA) were presented and compared accounting for varying slenderness ratio, plate slenderness ratio (b/t), and different types of end connections and restraints. The findings reveal that the latest design provisions generally result in much higher design strengths compared to the earlier provisions, with a maximum increase of 104.84%. Upon noticing the significant variation, this study is further extended to compare with the reported data available in the literature. The nominal strengths calculated using the latest provisions were often higher than the strengths reported in the literature considered in this study, indicating potential unsafe design. Full article
(This article belongs to the Special Issue High-Performance Steel Structures)
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24 pages, 76126 KiB  
Article
Web-Crippling Capacity of High Performance Cold-Formed Lipped Steel Sections Subjected to Elevated Temperature
by Gunasekaran Jayakumar, Tattukolla Kiran, Anand Nammalvar, Tilak Prasad Sah, Mervin Ealiyas Mathews, M. Anbarasu and A. R. Dar
Buildings 2023, 13(10), 2436; https://doi.org/10.3390/buildings13102436 - 25 Sep 2023
Cited by 2 | Viewed by 1339
Abstract
High-performance steel has emerged as an advanced structural material in the construction practice of industrial buildings, due to its excellent properties. However, fire poses a significant threat to cold-formed steel structures, as they are prone to deform and buckle under the exposure, potentially [...] Read more.
High-performance steel has emerged as an advanced structural material in the construction practice of industrial buildings, due to its excellent properties. However, fire poses a significant threat to cold-formed steel structures, as they are prone to deform and buckle under the exposure, potentially leading to building collapse. This study aimed to evaluate the post-fire web-crippling behaviour of high performance CFS sections for End Two Flange (ETF) and Interior Two Flange (ITF) load cases. Two types of specimens were used: CFS webs without holes and CFS webs with circular holes. All test specimens were heated according to the ISO 834 standard fire curve and were subsequently cooled by air or water. A total of 52 specimens (ambient and post-fire) were tested under ETF and ITF load conditions. The load-deflection behaviour and failure modes were evaluated through experimental and numerical analysis. Finite element modelling was used to compare the load-deflection behaviour and failure modes of CFS members with experimental results. The experimental results indicate that the web load-carrying capacity of the high-performance steel member decreases drastically as the heating duration increases. Furthermore, the ITF load case specimens exhibited a lower strength loss than the ETF load case specimens at elevated temperatures. There was an excellent agreement between the experimental and FEM results in terms of the load-carrying capacity and failure modes of high performance CFS. Full article
(This article belongs to the Special Issue High-Performance Steel Structures)
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