Recent Advances 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 September 2023) | Viewed by 10006

Special Issue Editor


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Guest Editor
Department of Civil Engineering, University of the Peloponnese, 1 M. Alexandrou Str., Koukouli, 26334 Patras, Greece
Interests: structural dynamics; earthquake engineering; seismic isolation; structural vibration control; soil–structure interaction; finite element method; boundary element method; computer-aided structural analysis; elastodynamics; elastoplasticity
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Special Issue Information

Dear Colleagues,

I am pleased to invite you for cutting-edge original research articles as well as high-quality review papers for this Special Issue on “Recent Advances in Structural Engineering”.

The objective of this Special Issue is to bring together the most recent research trends and advances in structural engineering to support the needs of professionals and researchers engaged in civil structures under a variety of external actions such as earthquakes, winds, vibrations, extreme loads, and fires.

This Special Issue can serve as a source of high-impact publications for the global community of researchers in the traditional, as well as emerging, subdisciplines of structural engineering.

Contributions to the following topics are welcome (but they need not be limited to this list):

  • Civil Engineering Structures (Buildings, Bridges, Offshore Platforms, etc.)
  • Effects of Dynamic Loads on Structures (Earthquakes, Winds, Vibrations, Blasts, Extreme Loads, etc.)
  • Fire Effects on Structures
  • Reinforced Concrete Structures
  • Steel Structures
  • Composite Structures
  • Masonry Structures
  • High Rise Structures
  • Computational Methods in Structural Analysis (FEM, BEM, etc.)
  • Structural Use of Innovative and Sustainable Construction Materials
  • Structural Dynamics and Earthquake Engineering
  • Seismic Response of Structures
  • Performance-Based Structural Engineering
  • Soil-Structure Interaction (SSI)
  • Seismic Isolation of Structures
  • Structural Vibration Control
  • Special Dampers
  • Assessment, Repair and Strengthening of Structures
  • Structural Health and Seismic Structural Monitoring
  • Smart Materials and Structures
  • Soft Computing Techniques in Structural Engineering

Dr. Denise-Penelope N. Kontoni
Guest Editor

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

  • civil engineering structures (R.C., steel, composite, masonry)
  • structures under loads (earthquakes, winds, fires, blasts, etc.)
  • computational methods in structural analysis (FEM, BEM, etc.)
  • use of innovative and sustainable construction materials
  • soil-structure interaction (SSI)
  • seismic isolation of structures
  • structural vibration control
  • special dampers
  • smart materials and structures
  • soft computing techniques in structural engineering

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Published Papers (4 papers)

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Research

19 pages, 4269 KiB  
Article
Flexural Performance of Cracked Reinforced Concrete Beams Strengthened with Prestressed CFRP Sheets under Repeated Loads
by Huijuan Wang, Changyong Li, Sihao Song, Yao Wang, Qingxin Meng and Fenglan Li
Buildings 2023, 13(8), 2115; https://doi.org/10.3390/buildings13082115 - 21 Aug 2023
Cited by 4 | Viewed by 1703
Abstract
Because researchers are aiming to restore the deformation and minimize the crack width of existing concrete structures, the strengthening technology of prestressed carbon-fiber-reinforced plastic (CFRP) is currently the focus of many studies and applications. In terms of the strengthening of a prestressed CFRP [...] Read more.
Because researchers are aiming to restore the deformation and minimize the crack width of existing concrete structures, the strengthening technology of prestressed carbon-fiber-reinforced plastic (CFRP) is currently the focus of many studies and applications. In terms of the strengthening of a prestressed CFRP sheet on the flexural performance of cracked reinforced concrete beams under repeated loads, a four-point bending test of 12 beams was conducted considering the prestress degree reflected by the amount and the prestress force of the CFRP sheet. The longitudinal strengthened CFRP sheet was bonded on the bottom surface of the test beam and fixed by U-jacket CFRP sheets at the ends after tensioning. The strains of concrete, longitudinal tensile steel bars and CFRP sheets were measured at the pure bending segment of test beams, while the cracks, midspan deflection and failure pattern were recorded. The results show that the normal strain on the mid-span section of the strengthened beams by the prestress CFRP sheets was fitted for the assumption of plane section, the cracks and mid-span deflection decreased with the prestress degree of the CFRP sheets to provide better serviceability for the strengthened beams, the load capacity could be increased by 41.0–88.8% at the yield of longitudinal tensile steel bars and increased by 41.9–74.8% at the ultimate state and the ductility at the failure state was sharply reduced by 54.9–186%. The peeling off of broken CFRP sheets played a role in controlling the failure pattern of the strengthened beams under repeated loads. Finally, methods for predicting the bending performance of reinforced concrete beams strengthened by prestressed CFRP sheets were proposed. This study enriches the knowledge about damaged reinforced concrete beams that were strengthened with prestressed CFRP sheets. Full article
(This article belongs to the Special Issue Recent Advances in Structural Engineering)
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17 pages, 5451 KiB  
Article
Experimental and Numerical Flexural–Torsional Performance of Thin-Walled Open-Ended Steel Vertical Pile Foundations Subjected to Lateral Loads
by José Antonio Pérez, Antonio Manuel Reyes-Rodríguez, Estíbaliz Sánchez-González and José D. Ríos
Buildings 2023, 13(7), 1738; https://doi.org/10.3390/buildings13071738 - 10 Jul 2023
Cited by 2 | Viewed by 1548
Abstract
This research investigates the effects of torsional moments on the mechanical behavior of thin-walled open-ended vertical pile foundations subjected to lateral wind loads. The aim of this research is to determine and quantify the errors using traditional design methods and provide more effective [...] Read more.
This research investigates the effects of torsional moments on the mechanical behavior of thin-walled open-ended vertical pile foundations subjected to lateral wind loads. The aim of this research is to determine and quantify the errors using traditional design methods and provide more effective alternatives. The warping and torsion effect generated over the piles due to the resultant lateral load impact outside the shear center is analyzed in field tests. Complementarily, a two-dimensional finite element model based on the simple bending stress–strain state, as well as a three-dimensional finite element model considering torsional effects, were implemented and their results analyzed. Finally, a comparative analysis between the in-field lateral loading tests and the finite element model approaches was established by comparing load–displacement curves and using a non-linear Wrinkle model of the soil. Additionally, correlations between the experimental and finite element model errors for the cross-sections pile with a different torsional constant and torsional susceptibility index are shown. From the results, it has been ascertained that the slender thin-walled open-ended pile foundations are particularly sensitive to small load deviations from their center of gravity; this leads to the fact that the slenderer the load and the greater its eccentricity, the more it affects the torsion and warping of the pile. Calculation methodologies usually consider a simple in-plane bending behavior, which leads to errors between 44 and 58% in comparison with the experimental results obtained. Full article
(This article belongs to the Special Issue Recent Advances in Structural Engineering)
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17 pages, 4790 KiB  
Article
Numerical Study on Static and Dynamic Load Response of Temporary Support System for Group Tunnels Excavation
by Yu Zeng, Bo Huang, Yu Zou and Yao Bai
Buildings 2022, 12(10), 1719; https://doi.org/10.3390/buildings12101719 - 18 Oct 2022
Cited by 2 | Viewed by 1627
Abstract
In this study, the static response of the preliminary pilot tunnels excavation to the ground, and the dynamic response of the group cavern system under seismic excitation under the use of the construction of a metro station based on the Pile-Beam-Arch approach are [...] Read more.
In this study, the static response of the preliminary pilot tunnels excavation to the ground, and the dynamic response of the group cavern system under seismic excitation under the use of the construction of a metro station based on the Pile-Beam-Arch approach are investigated through numerical calculation. The results suggest that the excavation sequences of “top first and then bottom” and “middle first and then both sides” can generate the minimum ground settlement. When the pilot tunnels were excavated, the horizontal PGA (peak ground acceleration) amplification coefficient tends to increase with significant nonlinear characteristics under the excitation of EI Centro wave with a horizontal acceleration of 0.15 g, and the horizontal PGA amplification coefficient reaches the maximum at the ground surface. The effect of horizontal acceleration around the upper pilot tunnels increases. Under the static load, the maximum principal stress of the lining structure after the completion of the pilot tunnels is largely concentrated at the foot of the arch of the pilot tunnel, and the maximum principal stress value is 1.124 MPa. The maximum principal stress is primarily concentrated at the foot of the arch and the foot of the upper and lower guide tunnel under seismic excitation, and the maximum principal stress value is 1.424 MPa. This study reveals that a reasonable excavation sequence can be employed when the pilot tunnels are being excavated to control the settlement. Furthermore, the support of the arch and footing of the pilot tunnels should be enhanced during the seismic design. Full article
(This article belongs to the Special Issue Recent Advances in Structural Engineering)
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17 pages, 15516 KiB  
Article
Compressive Capacity Prediction of Stirrup-Confined Concrete Columns Using Neuro-Fuzzy System
by Hosein Naderpour, Mahdi Akbari, Masoomeh Mirrashid and Denise-Penelope N. Kontoni
Buildings 2022, 12(9), 1386; https://doi.org/10.3390/buildings12091386 - 5 Sep 2022
Cited by 8 | Viewed by 1790
Abstract
The compressive capacity of the column is one of the key parameters in the design. The importance of such structural members and their performance under load conditions are very effective in the overall behavior of the structure, and its failure can lead to [...] Read more.
The compressive capacity of the column is one of the key parameters in the design. The importance of such structural members and their performance under load conditions are very effective in the overall behavior of the structure, and its failure can lead to the collapse of the entire structure. Therefore, determining the capacity of columns is considered an important issue in structural problems. Thus, this article presents an applicable computational framework to predict the compression capacity of stirrups-confined concrete. A machine learning model based on neuro-fuzzy systems was considered to formulate the proposed model. For this purpose, some experimental datasets were gathered from the literature to tune the unknown parameters of the model and evaluate its accuracy. The target, the ratio of the ultimate axial capacity to bearing area, was predicted with consideration of the column properties, including the compressive strength of concrete, stirrups section area, dimension of the stirrups, and the column section. The results showed that the proposed framework could be used as an applicable technique to determine the compressive capacity of the stirrups-confined concrete columns. Full article
(This article belongs to the Special Issue Recent Advances in Structural Engineering)
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