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Applied Sciences
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State-of-the-Art in Structural Steel Engineering
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State-of-the-Art in Structural Steel Engineering

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Civil Engineering".

Deadline for manuscript submissions: closed (20 March 2024) | Viewed by 13839

Special Issue Editors

Prof. Dr. Algirdas Juozapaitis

E-Mail Website
Guest Editor
Department of Steel and Composite Structures, Vilnius Gediminas Technical University, Vilnius TECH, LT-10223 Vilnius, Lithuania
Interests: steel structures; steel bridges; stability; nonlinear behaviour
Prof. Dr. Alfonsas Daniūnas

E-Mail Website
Guest Editor
Department of Steel and Composite Structures, Vilnius Gediminas Technical University, Vilnius TECH, LT-10223 Vilnius, Lithuania
Interests: steel structures; numerical methods

Special Issue Information

Dear Colleagues,

Steel structures are undergoing permanent change, especially with new challenges such as green construction, climate change, sustainability, and achieving carbon neutrality. Materials engineering has developed rapidly in recent decades, with the development and successful application of high-strength steels (HSS) and stainless steels (SS). The high strength of steel has encouraged not only the development of new forms of bridges and buildings and their innovative structural elements and cross sections, but also the improvement in the nonlinear analysis and direct design methods of these steel structural systems.

Numerical methods, which aim to model the adequate static and dynamic behavior of structures, have become increasingly important. Thin-walled steel structures are also becoming more widely used. In parallel, a great deal of attention focused on the methods of calculating the joints for these structures, and the influence of these joints on the behavior of the whole structure. New research in these areas is very important, leading to new breakthroughs in the research and design of modern steel structures, important achievements in the development of steel structures in different countries, and the harmonization of design methods and codes.

This Special Issue invites you to publish scientific and review articles on the development and design of steel bridges and structures, presenting this novel research material with a view to further develop the State-of-the-Art in Structural Steel Engineering.  Submissions should focus on the development and application of modern trends in the research on steel structures; advanced analytical, numerical, and experimental methods of analysis; and case studies of simulations of structures with applied novel materials.

Prof. Dr. Algirdas Juozapaitis
Prof. Dr. Alfonsas Daniūnas
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. Applied Sciences 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 2400 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

  • buildings, bridges, and engineering structures
  • large-scale steel structures
  • form finding and optimum design
  • stainless steel and high-strength steel structures
  • advanced analysis and direct methods of design
  • stability of steel structures
  • cold-formed elements and structures
  • prestressed steel structures
  • joints and connections
  • testing, modeling, and design
  • new generation of design codes

Published Papers (5 papers)

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Research

26 pages, 4248 KiB  
Article
Overview of FEM-Based Resistance Models for Local Buckling of Welded Steel Box Section Columns
by Irvin Quillupangui, Balázs Somodi and Balázs Kövesdi
Appl. Sci. 2024, 14(5), 2029; https://doi.org/10.3390/app14052029 - 29 Feb 2024
Viewed by 481
Abstract
The local buckling behavior of welded square box section columns subjected to pure compression is investigated. Local buckling represents a crucial failure mode in thin-walled structures, exerting a significant impact on their overall stability and load bearing capacity. The primary objective of this [...] Read more.
The local buckling behavior of welded square box section columns subjected to pure compression is investigated. Local buckling represents a crucial failure mode in thin-walled structures, exerting a significant impact on their overall stability and load bearing capacity. The primary objective of this research is to perform an extensive literature review considering the theoretical background of buckling phenomena and encompassing key findings and methodologies reported in previous studies. Additionally, the development and validation of a novel numerical model is presented, capable of accurately predicting the ultimate buckling capacity. Two different calculation methods are applied in the present study: (i) a numerical model using equivalent geometric imperfections to cover the residual stresses and out-of-straightness of plates, (ii) realistic geometric imperfections combined with an assumed residual stress pattern which has an experimental-based background. The objective of the numerical investigation is to investigate the accuracy of the numerical model by using different residual stress and imperfection patterns taken from the international literature. Many test results are collected from the international literature, to which the computational results are compared, and the effect of the residual stresses and geometric imperfections are analyzed. Based on the numerical analysis, the accuracy of the imperfection models is assessed and the imperfection model leading to the most accurate resistance is determined. The calculated buckling capacities are also compared to analytical design approaches, in which accuracy is also analyzed and evaluated. The current investigation proved the buckling curve developed by Schillo gives the most accurate results to the numerically calculated buckling resistance. Full article
(This article belongs to the Special Issue State-of-the-Art in Structural Steel Engineering)
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20 pages, 5397 KiB  
Article
Selection Criterion of Reanalysis Methods for Plane Truss Optimization
by Xianzhong Zhao, Tao Zhang and Weifang Xiao
Appl. Sci. 2023, 13(12), 6953; https://doi.org/10.3390/app13126953 - 08 Jun 2023
Viewed by 790
Abstract
Structural reanalysis methods have been proposed to improve the efficiency of structural analysis. However, the methods are typically only applicable to their specific type of structural modification. Since the optimization process often involves multiple types of modifications, it is necessary to establish a [...] Read more.
Structural reanalysis methods have been proposed to improve the efficiency of structural analysis. However, the methods are typically only applicable to their specific type of structural modification. Since the optimization process often involves multiple types of modifications, it is necessary to establish a criterion for selecting the most suitable reanalysis method for each type of modification, aiming to accelerate the optimization process. In this study, the effects of different types of structural modifications are first analyzed. A qualitative correspondence is established between different types of structural modifications and the mainstream of the reanalysis methods. Secondly, the most suitable reanalysis method for different types of structural modifications is quantitatively analyzed from the aspects of selecting efficiency indicators and clarifying accuracy requirements. Finally, in conjunction with the Structural Topology and Shape Annealing (STSA) algorithm, a criterion for selecting reanalysis methods, which are applicable to the optimization process of plane trusses, is established. To verify the validity of the selection criterion, two types of numerical examples are conducted. The results show that the proposed criterion can effectively improve the efficiency of structural computations. Full article
(This article belongs to the Special Issue State-of-the-Art in Structural Steel Engineering)
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14 pages, 3902 KiB  
Article
Ring Stiffened Cylindrical Shell Structures: State-of-the-Art Review
by Hartmut Pasternak, Zheng Li, Algirdas Juozapaitis and Alfonsas Daniūnas
Appl. Sci. 2022, 12(22), 11665; https://doi.org/10.3390/app122211665 - 17 Nov 2022
Cited by 5 | Viewed by 2828
Abstract
The cylindrical shell is a widely used structure in engineering practice, and its main form of failure is instability due to buckling. As a classical problem in the field of mechanics, the stability of cylindrical shells has been studied extensively. However, the large [...] Read more.
The cylindrical shell is a widely used structure in engineering practice, and its main form of failure is instability due to buckling. As a classical problem in the field of mechanics, the stability of cylindrical shells has been studied extensively. However, the large difference between the theoretically predicted results of the critical buckling load and the experimental results for the cylindrical shells subjected to uniform axial pressure has contributed to the continuous development of the shell stability theory. This paper briefly reviews the development of the shell stability theory, then presents an overview of the current status and trends of stability research on the stiffened cylindrical shell widely used in cylindrical shell structures in real engineering, and finally presents the difficulties and directions of future stability research on cylindrical shell structures in engineering applications. Full article
(This article belongs to the Special Issue State-of-the-Art in Structural Steel Engineering)
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9 pages, 1377 KiB  
Communication
Improved Interaction Formula for the Plastic Resistance of I- and H-Sections under a Combination of Bending Moments My,Ed, Mz,Ed, and Bimoment BEd
by Antonio Agüero, Ivan Baláž and Yvona Koleková
Appl. Sci. 2022, 12(15), 7888; https://doi.org/10.3390/app12157888 - 06 Aug 2022
Cited by 1 | Viewed by 1239
Abstract
The resistances of HVH sections (H—horizontal upper flange, V—vertical web, H—horizontal bottom flange) were investigated by the authors in the frame of the large parametrical studies focused on the complete HVH-section categories: channels, Z-sections, I-sections, and H-sections. The three different variants of the [...] Read more.
The resistances of HVH sections (H—horizontal upper flange, V—vertical web, H—horizontal bottom flange) were investigated by the authors in the frame of the large parametrical studies focused on the complete HVH-section categories: channels, Z-sections, I-sections, and H-sections. The three different variants of the approximate formulae for the calculation of the elastic and plastic resistances of I-shaped sections loaded by several internal forces were previously published by the authors. In this paper, the improved approximate formulae are presented for the plastic resistance of I- and H-sections loaded by bending moments My,Ed, Mz,Ed, and bimoment BEd. It is shown in the graphical form that the proposed approximate formulae give almost identical values of relative plastic resistances of I-shaped sections to the exact solution, in which Pattern Search Algorithm, offered by MATLAB, is used. It is proven that the proposed approximate formulae are better then previous authors’ formulae, which are themselves better than the older Greek proposal and the newer German proposals. The approximate formulae may be used in the CEN Technical Specification (TS) or in Non Contradictory Complementary Information (NCCI) for supporting safe and economical design according to metal (steel and aluminum) Eurocodes. Full article
(This article belongs to the Special Issue State-of-the-Art in Structural Steel Engineering)
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19 pages, 11540 KiB  
Article
Load-Carrying Capacity of Bailey Bridge in Civil Applications
by Jozef Prokop, Jaroslav Odrobiňák, Matúš Farbák and Vladimír Novotný
Appl. Sci. 2022, 12(8), 3788; https://doi.org/10.3390/app12083788 - 08 Apr 2022
Cited by 5 | Viewed by 7412
Abstract
The paper presents an extensive study aimed to determine the applicability of the demountable Bailey bridge (BB) system on construction sites or in other temporary conditions while meeting the regulations for the design and assessment of steel bridges. The analysis is focused on [...] Read more.
The paper presents an extensive study aimed to determine the applicability of the demountable Bailey bridge (BB) system on construction sites or in other temporary conditions while meeting the regulations for the design and assessment of steel bridges. The analysis is focused on whether and to what extent the BB system with spans between 12 and 36 m is usable for on-site freight transport with conventional lorries with a total weight of up to 22–28 tons. At the same time, the BB system within these spans should be utilized for construction vehicles with a total weight of up to 32–40 tons. To calculate the load-carrying capacity, spatial numerical models were analysed using FEM and procedures of actual design codes were utilized. In the case of the main girders, analysis is focused on the out-of-plane stability of their compressed chords. Recommendations for the use of this bridge system in different arrangements of the main girder and bridge deck are then summarized and discussed. Full article
(This article belongs to the Special Issue State-of-the-Art in Structural Steel Engineering)
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