Recent Research Progress of UHPC in Structural Engineering

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

Deadline for manuscript submissions: closed (30 November 2023) | Viewed by 4133

Special Issue Editors

Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, School of Civil Engineering, Southeast University, Nanjing 211189, China
Interests: ultra-high-performance concrete structures; steel–concrete/steel–UHPC composite structures; application of artificial intelligence in UHPC structures; intelligent construction of UHPC structures
State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China
Interests: application of UHPC in retrofitting structures; bridge maintenance and structural analysis; long-term structural performance of bridges
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Guest Editor
Key Laboratory of High-Speed Railway Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China
Interests: evaluation method and enhance technology of seismic resilience of structures; application of UHPC targeting damage control for structures; development of UHPC-NSC composite components
School of Civil Engineering, Southeast University, Nanjing 211189, China
Interests: long lifespan of UHPC structures; UHPC–NC/steel–UHPC composite structures; development of prestressed UHPC structures

Special Issue Information

Dear Colleagues,

UHPC is a cementitious composite material composed of an optimized gradation of granular constituents, exhibiting exceptional properties of strength and durability, which is an ideal candidate for developing new solutions in reaction to pressing concerns regarding structure deterioration, repair, and replacement. In recent years, UHPC has been used in concrete structures, composite structures, fabricated structures, and local complex stress areas of structures. Additionally, various innovative research achievements have emerged worldwide, primarily including the structural performance of UHPC components, design or calculation methods, innovative structural systems, configuration concepts of UHPC, and the strengthening method using UHPC. These research activities will be beneficial to solve the practical problems in the design and construction of structural engineering. To further promote the application and development of UHPC in structural engineering, the latest research achievements of UHPC structures should be discussed further.

This Special Issue (SI) aims to present recent advancements and innovative ideas or methods by collecting mainly integrated studies on UHPC structures. Studies from experimental testing, analytical approaches, numerical simulations, and emerging algorithms of the performances of UHPC structures are welcomed.

It is our pleasure to invite you to submit a manuscript for this SI. Technical articles and review papers are expected to reflect original research and technological advances on topics that include, but are not strictly limited to, the following fields:

  • Long life-span of UHPC structures;
  • Structural behavior of UHPC and prestressing UHPC structures;
  • Emerging algorithms and analytical approaches in UHPC structures;
  • Durability or long-term performance of UHPC structures;
  • Application of UHPC in strengthening structures;
  • Industrialized and intelligent construction of UHPC structures.

Dr. Jianan Qi
Dr. Jun Yang
Dr. Kailai Deng
Dr. Yuqing Hu
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.

Published Papers (3 papers)

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15 pages, 5886 KiB  
Article
Built-Up Fiber-Reinforced Polymers (FRP) Profiles with Improved Shear Performance for FRP–Concrete Hybrid Section
by Qifeng Zhang, Zuohong Xu and Yuqing Hu
Buildings 2023, 13(9), 2298; https://doi.org/10.3390/buildings13092298 - 09 Sep 2023
Cited by 1 | Viewed by 743
Abstract
Fiber-reinforced polymer (FRP)–concrete hybrid sections, composed of FRP profiles and a concrete slab, have gathered attention in construction due to their lightweight, easy installation, and high durability. However, the low shear strength and brittle behavior of commercially available pultruded FRP profiles often leads [...] Read more.
Fiber-reinforced polymer (FRP)–concrete hybrid sections, composed of FRP profiles and a concrete slab, have gathered attention in construction due to their lightweight, easy installation, and high durability. However, the low shear strength and brittle behavior of commercially available pultruded FRP profiles often leads to brittle shear failure at low load levels. To enhance the shear strength and ductility, this study proposes a novel H-shaped FRP profile that is built from two U-shaped pultruded FRP profiles and a hand lay-up sandwiched core of multi-directional fibers. Direct shear tests showed that the built-up FRP profiles failed in pseudo-ductile mode while the U-shaped pultruded FRP profiles failed in brittle mode. Built-up FRP had 1.5 times the capacity and 2.8 times the ultimate redundancy compared to pultruded FRP. Additionally, flexural tests of FRP–concrete hybrid beams revealed that the webs of the built-up FRP profiles failed in a higher shear capacity with smeared cracks. Full article
(This article belongs to the Special Issue Recent Research Progress of UHPC in Structural Engineering)
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17 pages, 7091 KiB  
Article
Seismic Vulnerability Analysis of Long-Span Prestressed Concrete Composite Box Girder Bridge with Corrugated Steel Webs under Construction
by Rubao Wang, Zhangliang Hu, Zhiming Hao, Liang Chen, Guigang Shi, Ruini Hou and Rui Zuo
Buildings 2023, 13(7), 1598; https://doi.org/10.3390/buildings13071598 - 24 Jun 2023
Cited by 2 | Viewed by 989
Abstract
In order to address the difficulty in determining the seismic damage probability of continuous girder bridges under construction, the seismic vulnerability analysis method of the construction state is proposed in this study. Firstly, taking a long-span prestressed concrete composite box girder bridge with [...] Read more.
In order to address the difficulty in determining the seismic damage probability of continuous girder bridges under construction, the seismic vulnerability analysis method of the construction state is proposed in this study. Firstly, taking a long-span prestressed concrete composite box girder bridge with corrugated steel webs (OSW) as an example, the finite element models (FEMs) of dynamic calculation in different phases of cantilever construction are simulated by OpenSEES. Secondly, by selecting reasonable seismic waves and seismic intensity measures, the non-linear time-history analysis is carried out, followed by the demand parameters and damage indexes suitable for the construction state proposed. Finally, the probabilistic seismic demand model (PSDA) of the continuous box girder bridge during the construction stage is constructed by using the “cloud method”, and the seismic vulnerability curves of the piers and temporary bearings are established to evaluate the seismic performance during the construction stage. The results indicate that the damage probability of piers and temporary bearings increases with the progress of construction. The initial formation of the cantilever structure and the sudden change in the size of the construction segmental girder correspond to a high probability of damage, and seismic protection measures should be strengthened during this construction state. Moreover, significantly higher damage probability of the components under construction compared to the completed bridge after it is built. Full article
(This article belongs to the Special Issue Recent Research Progress of UHPC in Structural Engineering)
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21 pages, 8062 KiB  
Article
Axial Compressive Performance of Steel-Reinforced UHPC-Filled Square Stainless-Steel Tube
by Zhan Cheng, Junhua Li, Chuangchuang Wu, Tianyi Zhang and Guofeng Du
Buildings 2023, 13(1), 56; https://doi.org/10.3390/buildings13010056 - 26 Dec 2022
Cited by 2 | Viewed by 1833
Abstract
To study the axial compression performance of a steel-reinforced ultra-high-performance concrete-filled square stainless-steel tube (SR-UHPCFSSST), eight specimens were designed with different length-to-diameter ratios and skeleton contents, and axial compression tests and numerical simulations were performed. Damage pattern, ultimate load capacity, and load–displacement curve [...] Read more.
To study the axial compression performance of a steel-reinforced ultra-high-performance concrete-filled square stainless-steel tube (SR-UHPCFSSST), eight specimens were designed with different length-to-diameter ratios and skeleton contents, and axial compression tests and numerical simulations were performed. Damage pattern, ultimate load capacity, and load–displacement curve data of the specimens were obtained. Finite element analysis was performed using ABAQUS software for parameter expansion. The damage mechanisms of the specimens and the influences of various parameters, such as the length-to-diameter ratio, skeleton content, diameter-to-thickness ratio, and concrete strength, on the damage processes and ultimate bearing capacities of the specimens were studied. The results showed that among the components of the test piece under the same axial load, the stress of the built-in steel skeleton was the first to approach its yield stress, and the steel pipe was the first to produce a bulging deformation. The ultimate bearing capacities of the specimens increased with the increase in the skeleton content and concrete strength and decreased with the increase in the length-to-diameter and diameter-to-thickness ratios. Based on the test and numerical simulation results, this paper puts forward a calculation formula of the axial compression bearing capacity of a square-stainless-steel-tube ultra-high-performance-concrete middle-length column with a steel skeleton, which provides a reference for engineering design and for compiling relevant codes. Full article
(This article belongs to the Special Issue Recent Research Progress of UHPC in Structural Engineering)
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