Special Issue "Advanced Studies on Strength and Cracking of Prestressed and Reinforced Concrete Structures"

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

Deadline for manuscript submissions: 10 January 2024 | Viewed by 3715

Special Issue Editors

Mechanics, Sound & Vibration Laboratory, Department of Civil Engineering, College of Engineering, National Taiwan University, Taipei 10617, Taiwan
Interests: behavior of reinforced; prestressed concrete and steel structures; bridge engineering; engineering material; machine learning; method of finite elements; structural health assessment and monitoring
Special Issues, Collections and Topics in MDPI journals
Department of Civil Engineering, National Taiwan University, Taipei 10617, Taiwan
Interests: dynamic structural tests; structural mechanics; earthquake resistance design; passive structural control
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Concrete is one of the most common materials in the field of structural engineering. For this reason, its mechanical behavior and, even more, that of prestressed and reinforced concrete, has been a research topic through several approaches for years. Although the literature is full of manuscripts on this argument, ranging from experiments to numerical studies, a comprehensive and precise description of strength and cracking exhibited by prestressed and reinforced concrete structures is still a challenge. This is due to many complicated and combined phenomena that are involved, such as compression crushing, tensile cracking, strain softening, stiffness degradation, interaction between concrete and reinforcement, environmental and long-term conditions of concrete, strand and reinforcement corrosion, prestressing losses and fatigue loading. Therefore, it is crucial to still accurately investigate the effect of such phenomena on the performance of concrete buildings, bridges and infrastructures.

This Special Issue aims to gather advanced contributions that feature studies on prestressed and reinforced concrete structures, including ordinary, high-strength, lightweight, fiber-reinforced and recycled concretes. It is our pleasure to invite you to submit a work and share this call for papers with your colleagues. High quality manuscripts related to (but not limited to) the following topics of strength and cracking of prestressed and reinforced concrete structures are welcome:

  • Advanced construction technologies;
  • Development of design standards;
  • Laboratory and field investigations;
  • Monitoring techniques of deterioration conditions;
  • Nondestructive testing methods;
  • Linear and nonlinear analyses of geometric and material properties;
  • Advanced discrete and finite element modeling;
  • Serviceability issues under dynamic and static loading;
  • Strengthening and repair interventions.

Dr. Marco Bonopera
Prof. Dr. Kuo-Chun Chang
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

  • concrete
  • cracking
  • durability
  • limit-state behavior
  • mechanical strength
  • nondestructive testing
  • numerical modeling
  • prestressed structure
  • reinforced structure
  • service conditions

Published Papers (3 papers)

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Research

Article
Numerical Assessment on Continuous Reinforced Normal-Strength Concrete and High-Strength Concrete Beams
Buildings 2023, 13(5), 1157; https://doi.org/10.3390/buildings13051157 - 27 Apr 2023
Viewed by 629
Abstract
High-strength concrete (HSC) has been broadly applied to various civil structures for its advantages including high compressive strength and excellent durability and creep resistance. However, the brittleness of HSC raises concern about its use in practice. So far study on continuous reinforced HSC [...] Read more.
High-strength concrete (HSC) has been broadly applied to various civil structures for its advantages including high compressive strength and excellent durability and creep resistance. However, the brittleness of HSC raises concern about its use in practice. So far study on continuous reinforced HSC beams is limited. This work investigates the structural response of reinforced HSC continuous beams, and the results are compared with those of the counterparts made of normal-strength concrete (NSC). By applying a finite element method verified by experimental data, a comprehensive assessment is performed on two-span reinforced NSC and HSC (compressive strengths of 30, 60 and 90 MPa) continuous beams. A wide range of flexural reinforcement ratios are used to cover both under-reinforced and over-reinforced beams. The results show that reinforced HSC beams exhibit better flexural performance in terms of ultimate load, deformation, flexural ductility and moment redistribution, when compared to reinforced NSC beams. Formulae relating flexural ductility and moment redistribution with either neutral axis depth or tensile steel strain are suggested. Full article
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Article
Evaluation of Web Shear Design Procedures for Precast Prestressed Hollow Core Slabs
Buildings 2023, 13(1), 23; https://doi.org/10.3390/buildings13010023 - 22 Dec 2022
Viewed by 1220
Abstract
Precast, prestressed hollow core slabs (HCS) are commonly used by the construction industry for floor and roof systems worldwide. Generally, the web shear strength governs the shear design of such members. This is because the web width resisting shear stresses is relatively small [...] Read more.
Precast, prestressed hollow core slabs (HCS) are commonly used by the construction industry for floor and roof systems worldwide. Generally, the web shear strength governs the shear design of such members. This is because the web width resisting shear stresses is relatively small and the prestressing force at the bottom of the slabs restrains flexural cracking. Although most of the available design codes follow Mohr’s circle of stress for estimating the web shear cracking capacity of HCS, they produce different and scattered predictions. This paper gives more insight into the web shear design provisions of prestressed HCS in five of the available design codes. These codes include ACI 318, Eurocode 2, European standard EN 1168, CSA-A23.3, and AASHTO LRFD design specifications. A set of 229 data points was established from experimental investigations available in the literature on prestressed HCS that failed in the web shear. The dataset was used for evaluating the web shear design methods in the five codes. The results of the analysis indicated that both the simplified method of AASHTO and the ACI 318-19 method produced very conservative predictions. In contrast, the Eurocode 2 method produced unconservative predictions for most of the specimens in the dataset, whereas the ACI 318-05 method gave unconservative predictions for deeper sections. On the other hand, reasonable predictions were obtained by the EN 1168 method while the CSA-A23.3 method provided better predictions. Proposed modifications were presented for improving the predictions of the ACI 318, Eurocode 2, and EN 1168 web shear design methods for prestressed HCS. Full article
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Article
Numerical Assessment on Bonded and Unbonded Prestressed Concrete Beams
Buildings 2022, 12(10), 1658; https://doi.org/10.3390/buildings12101658 - 11 Oct 2022
Cited by 2 | Viewed by 1106
Abstract
The tendon stress in bonded prestressed concrete (BPC) beams is section-dependent while it is member-dependent in unbonded prestressed concrete (UPC) beams, leading to marked difference between these two structural systems. However, little work has addressed the bond effect of steel tendons. This research [...] Read more.
The tendon stress in bonded prestressed concrete (BPC) beams is section-dependent while it is member-dependent in unbonded prestressed concrete (UPC) beams, leading to marked difference between these two structural systems. However, little work has addressed the bond effect of steel tendons. This research presents comparative investigations of BPC and UPC beams with various prestress levels. A numerical model is experimentally validated. Numerical assessments are conducted for simply supported and continuous scenarios, focusing on the effects of bond condition and prestress level. The results show that BPC beams exhibit better crack pattern (i.e., smaller crack width with larger crack zone) than UPC beams. The difference in ultimate loads or deflections between BPC and UPC beams depends heavily on the prestress level (the values of UPC beams are around 64% and 94% of those of BPC beams at prestress levels of 25% and 75%, respectively). Unbonded tendons produce greater moment redistribution in continuous scenarios than bonded tendons. It is also shown that the ACI code cannot well describe the bond impact of steel tendons on moment redistribution in continuous scenarios. A modified ACI equation is proposed, which can predict accurately the moment redistribution in both BPC and UPC beams. Full article
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