Advances in Steel–Concrete Composite Structures

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

Deadline for manuscript submissions: 20 October 2024 | Viewed by 2028

Special Issue Editors

School of highway, Chang'an University, Xi'an, China
Interests: steel–concrete composite girder bridges; concrete-filled steel tubular bridges; steel bridges; bridge temperature action; long-life design theory

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Guest Editor
Department of Bridge Engineering, Southwest Jiaotong University, Chengdu 610031, China
Interests: bridge engineering; wind engineering; mixed-wind climate; extreme wind speed; wind classification

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Guest Editor
School of Civil Engineering, Chongqing University, Chongqing, China
Interests: concrete filled steel tubular structure; truss bridge; steel and UHPC composite structure; structural analysis

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Guest Editor
Faculty of Architecture, Civil And Transportation Engineering, Beijing University of Technology, Beijing, China
Interests: steel–concrete composite bridges; steel bridges; structural stability; steel–UHPC composite structures

Special Issue Information

Dear Colleagues,

Steel–concrete composite structures can fully leverage the advantages of steel and concrete materials, featuring outstanding mechanical performance, convenient construction, and excellent economy. The development of new materials, new structures, and new technologies has greatly promoted the application of composite structures in high-rise buildings, small- and medium-span girder bridges, large-span arch bridges, cable-stayed bridges, and suspension bridges. In the face of increasingly complex structural forms and harsh service environments, determining how to coordinate the significant differences between steel and concrete in mechanics, heat transfer, and forming methods is still the key to achieving the excellent performance of composite structures.

This Special Issue, entitled “Advances in Steel-Concrete Composite Structure”, aims to showcase state-of-the-art investigations into steel–concrete composite building and bridge structures worldwide. Theoretical analysis, experimental research, case studies, and comprehensive review papers are invited for publication. Relevant topics to this Special Issue include, but are not limited to, the following subjects:

  • Innovation in new forms of steel–concrete composite structures;
  • Steel–concrete composite bridge decks, girders, arch ribs, piers and pylons;
  • Composite structures with UHPC and other high-performance materials;
  • The construction technology of composite building and bridge structures;
  • Temperature action, wind load and other environmental impacts;
  • The long-term performance of composite structures;
  • The long-life design theory of composite structures;
  • Refined numerical simulation methods.

We look forward to receiving your contributions.

Dr. Jiang Liu
Dr. Mingjin Zhang
Dr. Yinping Ma
Dr. Lipeng Sun
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–concrete composite structures
  • high-performance structures
  • high-performance materials
  • industrial construction
  • long-term performance
  • temperature action
  • wind load
  • environmental impact
  • numerical simulation
  • test methods

Published Papers (3 papers)

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Research

14 pages, 2951 KiB  
Article
Experimental Investigation and Numerical Analysis of the Axial Load Capacity of Circular Concrete-Filled Tubular Columns
by Marija M. Lazović Radovanović and Jelena Z. Nikolić
Buildings 2024, 14(5), 1329; https://doi.org/10.3390/buildings14051329 - 8 May 2024
Viewed by 361
Abstract
This paper focuses on the experimental investigation of the axial load capacity of CFT (concrete-filled steel tube) columns under actual construction conditions during building reconstruction. A total of four samples were loaded up to failure. The varied parameters were the column length and [...] Read more.
This paper focuses on the experimental investigation of the axial load capacity of CFT (concrete-filled steel tube) columns under actual construction conditions during building reconstruction. A total of four samples were loaded up to failure. The varied parameters were the column length and absence/presence of the concrete infill within the steel tube. Further, the analysis is extended to developing a numerical model in the finite element-based software ABAQUS version 6.9. This numerical model includes material and geometrical nonlinearities and was validated with the experimental results. The contribution of the concrete core to the column capacity and the concrete core confinement effect are discussed. Finally, the column capacity was calculated according to several design codes: the Eurocode 4 with and without considering the confinement effect, American specifications, Australian standards, the American Institute of Steel Construction, and the Architectural Institute of Japan. The Eurocode 4 considering the confinement effect provides the closest results to those obtained in the tests. Full article
(This article belongs to the Special Issue Advances in Steel–Concrete Composite Structures)
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26 pages, 9492 KiB  
Article
Finite Element Analysis of Axial Compression Behavior of L-Shaped Concrete-Filled Steel Tubular Columns with Different Combinations
by Hexiao Li, Zhong Tao and Dongji Han
Buildings 2024, 14(3), 730; https://doi.org/10.3390/buildings14030730 - 8 Mar 2024
Viewed by 641
Abstract
L-shaped concrete-filled steel tubular (CFST) columns, a kind of structural member appropriate for high-rise buildings, not only avoid the defect of conventional square columns protruding from the wall but also have the green and low-carbon properties of steel structures appropriate for fabricated construction. [...] Read more.
L-shaped concrete-filled steel tubular (CFST) columns, a kind of structural member appropriate for high-rise buildings, not only avoid the defect of conventional square columns protruding from the wall but also have the green and low-carbon properties of steel structures appropriate for fabricated construction. To learn more about their axial compression behavior, refined 3D finite element models were established using the general finite element software ABAQUS. The reliability of the models was subsequently verified based on failure tests and load–displacement relation tests on eight L-shaped specimens. The axial compression mechanism of L-shaped CFST columns was investigated using the verified finite element models. Further systematic parameter analysis was carried out to investigate the influence of parameters such as steel strength, concrete strength, length ratio of long limb to short limb, the angle between the two limbs, and combination methods on the axial compression behavior of L-shaped CFST columns. The results demonstrate that the angle between the two limbs has a significant impact on the stress distribution of concrete and steel pipes. The corner effect increases as the angle between the two limbs decreases. The combination of F-type specimens can better exert the constraint effect of steel pipes on concrete, while the triangular cavity of unequal-limb specimens and specimens with an included angle of 60° cannot effectively trigger the interaction between steel pipes and concrete. The initial stiffness of L-shaped CFST columns increases with an increase in concrete strength and a decrease in limb length ratio, which is not sensitive to changes in steel strength and the included angle. The peak bearing capacity of the specimens increases with increases in steel strength and concrete strength and a decrease in the limb length ratio. Compared to C-type and Z-type specimens, the initial stiffness of F-type specimens is slightly higher, and the peak bearing capacity is significantly increased. Full article
(This article belongs to the Special Issue Advances in Steel–Concrete Composite Structures)
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18 pages, 8128 KiB  
Article
Refined Analysis of Spatial Three-Curved Steel Box Girder Bridge and Temperature Stress Prediction Based on WOA-BPNN
by Wei Hu, Zhongyong Zhang, Junwei Shi, Yulun Chen, Yixuan Li and Qian Feng
Buildings 2024, 14(2), 415; https://doi.org/10.3390/buildings14020415 - 3 Feb 2024
Viewed by 552
Abstract
Bridges often improve the visual appeal of urban landscapes by incorporating curve elements to create iconic forms. However, it is noteworthy that curved bridges have unique mechanical properties under loads compared to straight bridges. This study analyzes a spatial three-curved steel box girder [...] Read more.
Bridges often improve the visual appeal of urban landscapes by incorporating curve elements to create iconic forms. However, it is noteworthy that curved bridges have unique mechanical properties under loads compared to straight bridges. This study analyzes a spatial three-curved steel box girder bridge based on an actual engineering case with a complex configuration. Initially, the finite element software Midas/Civil 2021 is utilized to establish a beam element model and a plate element model to examine the structural responses under dead loads in detail. Then, two different temperature gradient distribution models are employed for the temperature effect analysis. The backpropagation neural network (BPNN) optimized by the WOA algorithm is trained as a surrogate model for finite element models based on the results of temperature stress simulation. The results reveal that the bending–torsion coupling effect in the second span of the spatial three-curved steel box girder bridge is pronounced, with the maximum torque reaching 40% of the bending moment. The uneven distribution of cross-section stress is particularly significant at the vertices, where the shear lag coefficient exceeds 3. Under the action of temperature gradients, the bridge displays a warped stress state; the stress results obtained from the exponential model exhibit a 21% increase compared to BS-5400. Optimization of the weights by the WOA algorithm results in a significant improvement in prediction accuracy, and the convergence speed is improved by 30%. The coefficient of determination (R2) for predicting temperature stress can reach as high as 0.99. Full article
(This article belongs to the Special Issue Advances in Steel–Concrete Composite Structures)
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