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Advances in Steel/FRP–Concrete Composite Structures: Analysis, Design and Application

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

Deadline for manuscript submissions: 10 August 2024 | Viewed by 2126

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Special Issue Editors

Dr. Zhuangcheng Fang

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Guest Editor

Earthquake Engineering Research & Test Center, Guangzhou University, Guangzhou 510006, China
Interests: steel–concrete composite structures; ultra-high-performance concrete (UHPC); accelerated bridge construction (ABC); interfacial shear behavior; nonlinear behavior of composite structures

Prof. Dr. Haibo Jiang

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Guest Editor

School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China
Interests: prestressed/precast concrete structures; novel steel–concrete structures; UHPC materials and structures; shear behavior of concrete structures; retrofitting/rehabilitation of concrete structures
Special Issues, Collections and Topics in MDPI journals

Dr. Shaohua He

E-Mail Website
Guest Editor

School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China
Interests: steel–concrete composite bridges based on high-performance materials; rehabilitation of deficient bridges with ultra-high-performance concrete; application of high-performance and energy-efficient materials in bridge engineering

Dr. Shu Fang

E-Mail Website
Guest Editor

Guangdong Key Laboratory of Earthquake Engineering & Applied Technique, Guangzhou University, Guangzhou 510006, China
Interests: steel/FRP–concrete composite structures; civil engineering technology based on high-performance construction materials

Special Issue Information

Dear Colleagues,

Steel/FRP–concrete composite structures have attracted worldwide attention in the past decades, owing to their advantages of easy construction, outstanding structural performance and better environmental benefits. Recently, innovative forms of steel/FRP–concrete composite structures have been extensively investigated to meet the requirements of high-rise buildings, long-span bridges, long tunnels and other complicated structures. We are calling for paper submissions to this Special Issue entitled ‘Advances in Steel/FRP–Concrete Composite Structures: Analysis, Design and Application’ to be published in Buildings. This Special Issue aims to give an overview of the most recent innovations and advances in the field of steel/FRP–concrete composite structures and their applications. Original theoretical research, experimental work, case studies and comprehensive review papers are encouraged to be submitted. Topics relevant to this Special Issue include, but are not limited to, the following:

Innovative steel/FRP–concrete composite structures;
Novel construction technology of composite structures;
Composite structures containing high-performance materials, e.g., ultra-high-performance concrete (UHPC) and engineering cementitious composites (ECC), etc.;
Intelligent analysis of composite structures;
Experimental research on composite structures;
Design methodology of composite structures;
Nonlinear finite element analysis of composite structures.

Dr. Zhuangcheng Fang
Prof. Dr. Haibo Jiang
Dr. Shaohua He
Dr. Shu Fang
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
FRP–concrete composite structures
structural performance analysis
structural health monitoring
construction technology
machine learning
numerical simulation

Published Papers (3 papers)

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Research

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19 pages, 10083 KiB

Open AccessArticle

Optimization of the Mechanical Properties of Bolted Connections between Concrete-Filled Tubular Columns and Steel Beam with Reinforcing Rings

by Zhicheng Pan, Fanjun Ma, Bing Cao, Zongyun Mo, Jing Liu, Ruoli Shi and Zhijian He

Buildings 2024, 14(3), 782; https://doi.org/10.3390/buildings14030782 - 13 Mar 2024

Viewed by 643

Abstract

To study the mechanical performance of bolted connections with different structural forms of reinforced rings, based on the results of monotonic loading tests on two bolted connections between a concrete-filled steel tubular column and a steel beam with an outer reinforcing ring, this article uses ABAQUS v.2020 software to establish a three-dimensional refined finite element analysis model of such connections using appropriate constitutive models for concrete and steel. Subsequently, the effect of the dimensions of the steel beam, reinforcing ring, and cover plate on the load-bearing properties and the failure mechanism of the connections is investigated, and the numerical model is consistent with the verification test results. Then, the numerical simulations comparing bolted exterior reinforced rings under seven different construction measures (i.e., number of bolts, stiffeners) based on a conventional welded exterior reinforced rings with rigid connections (i.e., CGJ) are standardized. The research results indicate that when four rows of bolts are introduced on exterior reinforced rings, the web of steel beam is welded with stiffeners, and the top and bottom reinforced rings are also added with stiffeners; this bolted connection with an external reinforcing ring (i.e., GZ-7) can achieve the rigidity and load-bearing capacity of a fully welded external reinforcing ring rigid connection. At the same time, the reinforcing ring plate is bolted to the flange of the steel beam, and the force transmission path at the connection is changed to avoid the brittle fracture easily caused by the welded flange joints. It is also in line with the development trend of sustainable construction of “assembly” and “disassembly”. Full article

(This article belongs to the Special Issue Advances in Steel/FRP–Concrete Composite Structures: Analysis, Design and Application)

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13 pages, 4182 KiB

Open AccessArticle

Experimental Investigation on the Axial Loading Performance of Grooving-Damaged Square Hollow Concrete-Filled Steel Tube Columns

by Jing Liu, Zimao Pan, Zhicheng Pan, Shaohua He and Wenzhuo Yu

Buildings 2024, 14(1), 87; https://doi.org/10.3390/buildings14010087 - 28 Dec 2023

Viewed by 582

Abstract

Under the influence of material defects, structural grooving, environmental corrosion, and other factors in engineering, concrete-filled steel tubes incur local defects on their external surfaces that affect their structural integrity and service life. This work conducts axial compression tests on 10 grooving-damaged square hollow concrete-filled steel tube (SHCFST) columns to investigate the effect of grooving damage on their axial compressive ultimate bearing capacity and the effect of steel tubes on concrete confinement. It explores the effects of three parameters, namely, the length of grooves, presence of slots in internal and external steel tubes, and orientation of grooves, on structural static performance. This study analyzes the loading, failure mechanisms, and axial compressive ultimate bearing capacity of grooving-damaged SHCFST columns. Results indicate that grooving weakens the steel tube’s confinement effect on the concrete core, reducing the axial compressive ultimate bearing capacity of specimens. On the basis of this experimental research, a method for calculating the axial compressive ultimate bearing capacity and axial compressive stiffness of grooving-damaged SHCFST columns is proposed. The calculation results closely align with experimental outcomes, providing valuable insights for related scientific research and engineering applications. Full article

(This article belongs to the Special Issue Advances in Steel/FRP–Concrete Composite Structures: Analysis, Design and Application)

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Other

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22 pages, 12054 KiB

Open AccessEssay

Study on Axial Compression Performance of Corroded Reinforced Concrete Columns Strengthened by Concrete Canvas and Carbon Fiber Reinforced Plastic under Secondary Corrosion

by Fengge Li, Chen Chen and Zehui Xiang

Buildings 2024, 14(3), 803; https://doi.org/10.3390/buildings14030803 - 15 Mar 2024

Viewed by 554

Abstract

To investigate the effects of concrete canvas (CC) and carbon fiber reinforced plastic (CFRP) reinforcement on the mechanical properties of corroded reinforced concrete columns (compressive strength, flexure strength, strength of extension, and so on), 42 columns in four groups were designed and axial compression experiments were carried out. For the corroded reinforced concrete columns reinforced with CC and CFRP, the effects of initial corrosion rate (5%, 10%), secondary corrosion time (15 d, 30 d), number of CC layers (0, 1), and number of CFRP layers (1, 2, 3) on the failure morphology, load carrying capacity, and ductility of concrete columns were analyzed. The test results show that the properties of the single layer CC confined specimens are improved to a certain extent, and the ductility properties are enhanced. The properties of the CC–CFRP composite constrained specimens are greatly improved, the plastic deformation ability is enhanced, and the typical ductile damage characteristics are shown. The corrosion inhibition of CC for specimens with a theoretical corrosion rate lower than 20% showed an increasing trend, and the corrosion inhibition rate ranged from 23.0% to 31.2%. CC and CFRP restrain the concrete jointly, hindering the expansion inside the concrete, and the peak strain of the joint restraint specimen itself changes greatly, while the overall peak strain of the corrosion specimen is very small under the action of the joint steel bar. Finally, according to the existing peak stress–strain model and the experimental data in this paper, a peak stress–strain model suitable for corroded reinforced concrete columns is established. The established calculation model has a high accuracy, which provides a certain theoretical basis for subsequent research. Full article

(This article belongs to the Special Issue Advances in Steel/FRP–Concrete Composite Structures: Analysis, Design and Application)

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