Recent Scientific Developments in Steel Structure

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

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 4176

Special Issue Editors


E-Mail Website
Guest Editor
Research Center of Wind Engineering and Engineering Vibration, Guangzhou University, Guangzhou 510006, China
Interests: bridge engineering; composite structures; finite element modeling; structural stability

E-Mail Website
Guest Editor
College of Urban and Rural Construction, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
Interests: engineering structures; nonlinear mechanics; structural vibration; composite materials and structures
School of Transportation and Civil Engineering & Architecture, Foshan University, Foshan 528051, China
Interests: bridge engineering; finite element modeling; structural dynamic

Special Issue Information

Dear Colleagues,

Steel structures are widely used in construction around the world, from simple portal frames to skyscrapers. Steel has many advantages, including its durability and high strength-to-weight ratio. The behavior of steel structures is a complex phenomenon that has inspired a prodigious amount of research over the years. Steel structures are built in a multitude of shapes and sizes and are required to support many different types of loads. How steel structures respond to these loads has been the subject of much research since the 1800s.

This Special Issue seeks high-quality papers outlining the recent scientific developments in steel structures. Topics of interest include (but are not limited to):

(a) Behavior of steel structures;

(b) Behavior of concrete-filled steel tubular members;

(c) Steel structures under extreme conditions (e.g. earthquakes, strong winds, fires and blasts, etc.);

(d) Performance-based steel structures;

(e) Life-cycle steel structures;

(f) Fatigue of steel structures;

(g) Sustainability in steel structures.

Dr. Yonghui Huang
Dr. Zhicheng Yang
Dr. Zhou Chen
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 structures
  • stability
  • high-strength steel
  • CFST members
  • fatigue

Published Papers (3 papers)

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Research

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22 pages, 6873 KiB  
Article
Out-Plane Buckling of Arches with Variable Cross-Section
by Angfeng Jiang, Deyuan Deng, Wei Dai, Xiuwen You and Hanwen Lu
Buildings 2023, 13(11), 2838; https://doi.org/10.3390/buildings13112838 - 13 Nov 2023
Viewed by 699
Abstract
The variable cross-section arch is widely used in practical engineering because of its beautiful arc and excellent mechanical properties. However, there is still no systematic and comprehensive study on the out-plane buckling of variable cross-section arches. In view of this, this paper is [...] Read more.
The variable cross-section arch is widely used in practical engineering because of its beautiful arc and excellent mechanical properties. However, there is still no systematic and comprehensive study on the out-plane buckling of variable cross-section arches. In view of this, this paper is focused on the elastic analytical research of out-plane buckling of arches with variable cross-sections under a uniformly distributed radial local load. The pre-buckling and out-plane buckling behavior of a variable cross-sectional arch under an external load is quite different from that of an arch with a uniform cross-section. Castigliano’s second theorem is used to establish pre-buckling force method equilibrium equations for variable cross-sectional arches under a uniformly distributed radial local load, and corresponding analytical solutions of normal stress, axial compression, and the bending moments are obtained. Based on the energy method and the Ritz method, analytical solutions of the critical load for the elastic out-plane buckling of arches with variable cross-sections are derived. Comparisons with ANSYS results indicated that the analytical solutions are able to accurately predict the pre-buckling internal forces and critical out-plane buckling load of variable cross-section arches subjected to a uniformly distributed radial local load. It is found that the internal forces and the out-plane buckling load of an arch are significantly affected by the variation of cross-sectional height. As the ratio of the arch’s cross-sectional height increases, the bending moment decreases, and the axial force and critical out-plane buckling load increase. Analytical solutions of pre-buckling internal force and critical out-plane buckling load problems for arches with variable cross-sections have a wider significance since they can provide an effective explicit analytic method for the optimal design of arch structures. Full article
(This article belongs to the Special Issue Recent Scientific Developments in Steel Structure)
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14 pages, 3786 KiB  
Article
Welding Residual Stress Elimination Technique in the Top Chord of Main Truss of Steel Truss Bridge
by Long Piao, Jianfeng Yuan, Niujing Ma, Changqi Yue, Ronghui Wang and Gangbing Zheng
Buildings 2023, 13(5), 1267; https://doi.org/10.3390/buildings13051267 - 12 May 2023
Viewed by 1115
Abstract
The large-amplitude fluctuations of ultrasound in high-energy ultrasonic stress relieving cause the crystal grains or lattices in the high residual stress zone to vibrate or creep alternately. This triggers secondary effects such as ultrasonic softening and dislocation movement. The sound field also produces [...] Read more.
The large-amplitude fluctuations of ultrasound in high-energy ultrasonic stress relieving cause the crystal grains or lattices in the high residual stress zone to vibrate or creep alternately. This triggers secondary effects such as ultrasonic softening and dislocation movement. The sound field also produces periodic shock waves or intermittent shock waves, which form local pressure gradients at the wave front. These pressure gradients cause local heating of the grain boundary, accelerating material softening and promoting slip between grains, ultimately resulting in residual stress elimination. This technique was applied to detect the welding residual stress of the upper chord of the main truss of Sanguantang Bridge by using an ultrasonic stress meter. After the measurement, it was found that the welding residual stress in some areas was too large, and the welding residual stress needed to be eliminated. The welding seam was re-inspected after the residual stress relief operation was completed. The test results showed a maximum reduction rate of 63.91% and an average overall reduction rate ranging from 24.52% to 37.23%. The reduction effect is more significant in areas with higher welding residual stress. Full article
(This article belongs to the Special Issue Recent Scientific Developments in Steel Structure)
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Review

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25 pages, 10132 KiB  
Review
Advances in Shape Memory Alloy-Based Reinforcement in Steel Structures: A Review
by Chenxi Shao and Yonghui Huang
Buildings 2023, 13(11), 2760; https://doi.org/10.3390/buildings13112760 - 1 Nov 2023
Cited by 3 | Viewed by 1785
Abstract
The utilization of shape memory alloys (SMAs) to reinforce steel structures has been proven to be an efficient and reliable method, the structural strengthening needs can be met without the need for tensioning equipment by activating the SMAs to generate restoring stresses. This [...] Read more.
The utilization of shape memory alloys (SMAs) to reinforce steel structures has been proven to be an efficient and reliable method, the structural strengthening needs can be met without the need for tensioning equipment by activating the SMAs to generate restoring stresses. This paper firstly introduces the properties of SMA, and then presents the latest research progress, opportunities and challenges of SMA in the field of steel structural reinforcement, both in terms of basic components and applications. In terms of components, the construction forms and working mechanisms of Fe-SMA strips, SMA/CFRP composite patches and SMA dampers are introduced. On this basis, the application of SMA in steel structures reinforcement is introduced, and its effect is analyzed from three aspects: crack restoration, seismic retrofitting and structural strengthening. Finally, the results of the current research are summarized and the shortcomings are analyzed, hoping to provide a reference for the research of SMA in the field of steel structures reinforcement. Full article
(This article belongs to the Special Issue Recent Scientific Developments in Steel Structure)
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