Advanced Research on Steel Joints and Structures: Mechanical Behavior, Performance Analysis, and Stability Design

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

Deadline for manuscript submissions: 30 November 2025 | Viewed by 444

Special Issue Editors

School of Civil Engineering, Wuhan University, Wuhan 430072, China
Interests: bridge engineering; composite structure; cold-formed steel; thin-walled structures; finite element analysis
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Guest Editor
College of Civil Engineering and Architecture, Shandong University of Science and Technology, Qingdao 266590, China
Interests: concrete structure; building materials; concrete structure repair; structural analysis

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Guest Editor
School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
Interests: steel structure; composite structure; building structure; structural analysis
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Guest Editor
School of Civil Engineering, Nanjing Technology University, Nanjing 211816, China
Interests: steel structure; composite structure; bridge engineering; structural analysis
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Guest Editor
School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China
Interests: stainless steel; steel and composite bridges; bridge engineering; structural analysis

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Guest Editor
School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China
Interests: vibration absorbing effect; corrugated steel webs; semi-active control; seismic response; composite girder

Special Issue Information

Dear Colleagues,

The field of structural engineering is continually evolving, with a significant focus on the mechanical behavior, performance analysis, and stability design of steel joints and structures. As steel continues to be a predominant material in construction due to its strength, design flexibility, and economic efficiency, there is a growing need for advanced research to enhance our understanding of its applications in various structural systems. This Special Issue, titled "Advanced Research on Steel Joints and Structures: Mechanical Behavior, Performance Analysis, and Stability Design", aims to bring together the latest findings and innovative approaches in this critical area of research.

Topics of interest include, but are not limited to, the following research areas:

  • Mechanical behavior of steel joints under various loading conditions: Performance analysis of steel structures under extreme events (e.g., earthquakes, fires, and impacts).
  • Stability design considerations for steel frames and connections: Innovative design concepts and methodologies for steel structures.
  • Experimental and numerical investigations on the behavior of steel members and connections.
  • High-strength steel applications and their implications on structural performance: The use of advanced materials in conjunction with steel to enhance structural performance.
  • 3D printing technologies in the fabrication of steel structures and their impact on design and construction..
  • Machine learning and artificial intelligence applications in the design and optimization of steel structures

Dr. Man Zhou
Dr. Jitao Zhong
Dr. Xiaolong Su
Dr. Wenqin Deng
Dr. Bing Wang
Dr. Shangmin Zheng
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Buildings is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • steel joints
  • structural performance
  • stability design
  • mechanical behavior
  • steel structures
  • high-strength steel
  • seismic resistance
  • numerical simulation
  • structural optimization
  • advanced materials in steel construction

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Published Papers (1 paper)

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Research

27 pages, 5220 KB  
Article
Post-Fire Performance of Bolted Steel T-Joints with Varying Coating Thicknesses: Experimental and Finite Element Analysis
by Zeynep Yaman, Mahyar Maali, Elif Ağcakoca, Mohammad Saber Sadid, Abdulkadir Cüneyt Aydin and Hüsna Ekşi
Buildings 2025, 15(18), 3257; https://doi.org/10.3390/buildings15183257 - 9 Sep 2025
Viewed by 264
Abstract
This study investigates the structural performance of bolted T-joints in steel elements exposed to elevated temperatures, with a focus on the influence of fire-resistant coatings. A total of 36 T-joint specimens were tested under four different temperature levels (300 °C, 450 °C, 600 [...] Read more.
This study investigates the structural performance of bolted T-joints in steel elements exposed to elevated temperatures, with a focus on the influence of fire-resistant coatings. A total of 36 T-joint specimens were tested under four different temperature levels (300 °C, 450 °C, 600 °C, and 900 °C), incorporating three IPE section sizes and three fire-resistant paint thicknesses (200 µm, 400 µm, and 600 µm). The experimental program aimed to evaluate the combined effects of temperature, cross-sectional geometry, and coating thickness on the axial load-bearing capacity and deformation characteristics of T-joints. To examine the influence of web geometry, T-sections were designed in accordance with Eurocode 3, and the flange-to-web thickness ratios (tf/tw) were varied between 1.52 and 1.58. Results showed that applying 200 µm and 400 µm coatings at 300 °C and 450 °C improved the axial load capacity by approximately 10% and 20%, respectively, compared to uncoated specimens. However, effective fire protection at higher temperatures (600 °C and 900 °C) required a minimum coating thickness exceeding 400 µm. Finite Element Models developed using ABAQUS (2017) were designed to predict post-fire load–displacement behavior, stiffness degradation, and failure modes. Predictions were validated against experimental results, with deviations ranging from 0.97% to 9.73% for maximum load and 1.18% to 42.13% for energy dissipation, confirming the model’s reliability in simulating the thermo-mechanical response of steel joints under fire exposure. Full article
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