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Advanced Studies on Steel Structures
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Advanced Studies on Steel Structures

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

Deadline for manuscript submissions: 10 July 2024 | Viewed by 1856

Special Issue Editors

Dr. Fangxin Hu

E-Mail Website
Guest Editor
Department of Civil Engineering, South China University of Technology, Guangzhou 510640, China
Interests: steel structure; seismic; nonlinear analysis; constitutive model; high-strength steel
Dr. Shujun Hu

E-Mail Website
Guest Editor
Department of Civil Engineering, Nanchang University, Nanchang 330031, China
Interests: steel structure; prefabricated structure; resilience; self-centering structure; shape memory alloy (SMA); eccentrically braced frame (EBF)
Dr. Hai-Ting Li

E-Mail Website
Guest Editor
School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Interests: steel structure; cold-formed steel; stainless steel; structural stability; fire; composite steel–concrete structure; steel bridge
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to invite you to submit a manuscript to this Special Issue of Buildings, “Advanced Studies on Steel Structures”. This Special Issue aims to provide a venue for communicating the most recent results of original experimental, numerical or theoretical research on steel structures in buildings, bridges, tunnels or other engineering facilities. The topics of interest are broad, covering the performance of steel structural materials, components, members, connections or joints, and frames or systems under normal and hazardous conditions (e.g., strong earthquakes, strong winds, fire and their impacts); mechanical modeling and numerical simulation approaches; the structural application of unconventional materials (e.g., high-strength steel, stainless steel, low-yield steel, weathering steel, and fire-resistant steel); and performance-based design approaches. High-quality case studies and critical literature reviews in the area of steel structures are also welcome.

Dr. Fangxin Hu
Dr. Shujun Hu
Dr. Hai-Ting Li
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 monthly 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 structure, frame, and system
  • steel component and member
  • steel connection and joint
  • high-strength and low-yield steels
  • stainless steel
  • weathering steel
  • fire-resistant steel
  • mechanical modeling
  • numerical simulation
  • hazardous conditions, e.g., earthquakes, winds, fire and their impacts

Published Papers (2 papers)

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Research

21 pages, 6564 KiB  
Article
Mechanical Properties and Influence Factors of Ordinary Shear Links
by Shujun Hu, Shangwen Liu, Sizhi Zeng and Tiefeng Shao
Buildings 2024, 14(1), 160; https://doi.org/10.3390/buildings14010160 - 9 Jan 2024
Viewed by 494
Abstract
The current specification requires the same limiting values of inelastic rotation and the overstrength factor for shear links with a length ratio less than 1.6. However, recent studies have shown that the mechanical properties of ordinary shear links with a length ratio ranging [...] Read more.
The current specification requires the same limiting values of inelastic rotation and the overstrength factor for shear links with a length ratio less than 1.6. However, recent studies have shown that the mechanical properties of ordinary shear links with a length ratio ranging from 1.0 to 1.6 are obviously different from those of very short shear links with a length ratio less than 1.0. Additionally, shear links made of different steel materials have differences in mechanical properties. Based on Q345 steel, three ordinary shear links with a length ratio of 1.36 were designed to intensively explore the influence of stiffener configurations and spacing on mechanical properties. Under cyclic loading tests, the failure modes, hysteresis curves, skeleton curves, secant stiffness curves and energy dissipation capacities of shear link specimens were recorded. The results show that the overstrength factor and inelastic rotation of specimens SL-1 and SL-2, which had different stiffener configurations, reached 1.59 and 0.10, while those of specimen SL-3, which had wider stiffener spacing, reached 1.48 and 0.07, which showed that varying the stiffener configuration has no obvious effect, while relaxing stiffener spacing can result in severe buckling of the web. Additionally, its bearing capacity, inelastic rotation, secant stiffness and energy dissipation capacity reduced. Hence, the stiffener spacing should satisfy the requirements of the specification and not be too wide. Based on ABAQUS software, finite element models of ordinary shear links proved to be accurately consistent with test specimens in terms of mechanical properties. On this basis, 114 numerical models of ordinary shear links with different length ratios, stiffener spacings, flange-to-web area ratios, flange strengths, web depth-to-thickness ratios and stiffener thicknesses were designed to study the influence on the overstrength factor. Full article
(This article belongs to the Special Issue Advanced Studies on Steel Structures)
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28 pages, 7984 KiB  
Article
Cyclic Behavior of the Column-Tree Moment Connection with Weakened Plates: A Numerical Approach
by Pablo Matthews and Eduardo Núñez
Buildings 2023, 13(12), 2908; https://doi.org/10.3390/buildings13122908 - 22 Nov 2023
Viewed by 818
Abstract
The use of column-tree connections is common in controlled shop environments due to their cost-effectiveness in achieving ductile welds. Field bolts are also easy to install and inspect. However, there is currently no prequalification available for these connections, their performance is not fully [...] Read more.
The use of column-tree connections is common in controlled shop environments due to their cost-effectiveness in achieving ductile welds. Field bolts are also easy to install and inspect. However, there is currently no prequalification available for these connections, their performance is not fully understood, and the cost of aftermath repairs is still a major concern for owners. In this research, analytical and numerical studies were performed to assess the cyclic behavior considering the effects of the bolted splice location, bolt slippage, and splice plate thickness. Fourteen numerical models using the finite element method in ANSYS software were analyzed to evaluate the nonlinear behavior of moment connection configurations in terms of the strength, stiffness, ductility, energy dissipation, and overall cyclic response. The results showed that appropriately proportioned bolted splice connections can meet the requirements for prequalified moment connections. The models complied with the criteria established in AISC 358 and achieved flexural resistance that was higher than 80% of the beam plastic moment at 4% of the interstory drift ratio. The weakened plates concentrated the inelastic action, which allowed us to prevent the brittle behavior and damage to the column, welding, and other components of the moment connection. Complex geometries or specially fabricated parts were not required, providing a cost-effective way to control seismic-related damage. Also, required repairs are based on the replacement of standard parts, reducing operational detentions in facilities. Finally, the moment connection studied is classified as partially restrained (PR) according to the requirements established in AISC 360. Full article
(This article belongs to the Special Issue Advanced Studies on Steel Structures)
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