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Buildings
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Innovation of Seismic Behavior in Structural Engineering
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Innovation of Seismic Behavior in Structural Engineering

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

Deadline for manuscript submissions: 31 January 2025 | Viewed by 1375

Special Issue Editor

Dr. Qiyun Qiao

E-Mail Website
Guest Editor
College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China
Interests: seismic behavior; concrete structure; composite structure; masonry structure; prefabricated structure; structure retrofitting; structure inspection

Special Issue Information

Dear Colleagues,

Seismic behavior has always been a critical topic in the field of structural engineering, posing significant challenges to the reliability and safety of building structures. This Special Issue aims to explore innovations in seismic behavior within the field of structural engineering. We will conduct in-depth research into new structural forms, materials, and technologies to improve the resistance of buildings to earthquakes. We welcome researchers from around the world to submit their latest research findings, including (but not limited to) the following:

  • Innovative Structural Forms: Experimental and numerical studies on various structural forms such as concrete structures, steel structures, composite structures, timber structures, and masonry structures.
  • Innovative Seismic Retrofit Techniques: Innovative approaches for strengthening existing structures to withstand seismic events.
  • Applications of New Materials: Innovative applications of materials like SMC, ECC, FRP, etc., in building structures and components.
  • Sustainability in Seismic Engineering: Balancing seismic performance with economic efficiency to ensure the sustainability and cost-effectiveness of seismic-resistant structures.
  • Seismic Damage Assessment: Evaluation criteria for structural damage assessment following seismic events.
  • Structural Monitoring Techniques: Real-time monitoring and assessment of building structure health.

We look forward to receiving your submissions and collectively advancing the field of structural engineering, contributing to the construction of a safer and more sustainable future.

Dr. Qiyun Qiao
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

  • seismic behavior
  • concrete structure
  • composite structure
  • masonry structure
  • prefabricated structure
  • structure retrofitting
  • structure inspection

Published Papers (2 papers)

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Research

29 pages, 11373 KiB  
Article
The Cyclic Performance and Macro-Simplified Analytical Model of Internal Joints in RC-Assembled Frame Structures Connected by Unbonded Prestressed Strands and Mortise-Tenon Based on Numerical Studies
by Junwei Wang, Wenxue Zhang and Cheng Zhang
Buildings 2024, 14(6), 1629; https://doi.org/10.3390/buildings14061629 - 2 Jun 2024
Viewed by 308
Abstract
This paper introduces a novel type of connection that integrates unbonded prestressed strands (UPS) and mortise-tenon in an assembly frame structure (UPS-MTF). First, the damage process and failure modes of the joints under reciprocating horizontal loads were systematically analyzed using refined numerical models. [...] Read more.
This paper introduces a novel type of connection that integrates unbonded prestressed strands (UPS) and mortise-tenon in an assembly frame structure (UPS-MTF). First, the damage process and failure modes of the joints under reciprocating horizontal loads were systematically analyzed using refined numerical models. The recommended values of the design parameters of the joints were derived from the parametric analysis results. Refined numerical modeling results reveal the diagonal compression strut mechanism within the core region of the joint. The diagonal compression struts model assists in establishing the theoretical calculation formula for the skeleton curve of shear stress–strain in the core region. Second, a genetic algorithm (GA) parameter was identified for the restoring force model of the core region to determine the parameters of the hysteresis rules. Finally, a macro-simplified analytical model of the joint was created based on the restoring force model of the core region, and parameter analysis was conducted to verify the applicability of this macro-simplified analytical model. The research results prove that the damaged form of the joint proposed in this paper originates from the shear and relative slip damage between the components in the core region. The axial compression ratio significantly affects the hysteretic performance of the joints, and the upper and lower limit values were identified for the axial compression ratio of the joints. The area and initial effective stress of the UPS exert a minimal effect on the hysteretic performance of the joint. Based on the method proposed in this paper for determining the restoring force model in the core region of the joints, the hysteresis curves obtained from the macro-simplified analytical model closely match the refined numerical analysis model results. This correspondence verifies the applicability of the macro-simplified analytical model. Full article
(This article belongs to the Special Issue Innovation of Seismic Behavior in Structural Engineering)
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20 pages, 12006 KiB  
Article
Defect Detection in Grouting Sleeve Grouting Material by Piezoelectric Wave Method
by Qiyun Qiao, Xiuyu Wang, Wenchao Liu and Hongchun Yang
Buildings 2024, 14(3), 629; https://doi.org/10.3390/buildings14030629 - 27 Feb 2024
Viewed by 774
Abstract
The construction defects in grouting sleeves can jeopardize the safety of precast reinforced concrete structures. Thus, efficient and accurate defect detection is critical in engineering construction. In this paper, a defect detection method based on piezoelectric wave theory was proposed. Two piezoelectric ceramics [...] Read more.
The construction defects in grouting sleeves can jeopardize the safety of precast reinforced concrete structures. Thus, efficient and accurate defect detection is critical in engineering construction. In this paper, a defect detection method based on piezoelectric wave theory was proposed. Two piezoelectric ceramics were arranged within the grouting sleeve. One piezoelectric ceramic was affixed on the top of the steel bar, while the other was embedded in the grouting material, serving as the driver and sensor, respectively. The compactness defects, air cavity defects, steel anchoring defects, and water–binder ratio defects were set in the grouting sleeves, and the trends in time domain signals and signal evaluation indicators based on the wavelet packet total energy value (WPTEV) of different specimens were investigated. Based on the WPTEV, the evaluation index (EI) was proposed. In addition, the effect of the grouting material’s age on the piezoelectric wave signal was verified. Furthermore, the influence of grouting material defects on signals was simulated in ABAQUS, and the time domain signals and wavelet packet energy of sensor signals for specimens with varying defect dimensions were evaluated. The results showed that: (1) The defects in the grouting materials reduced the stress waves propagated through the grouting materials, resulting in a decrease in attenuation and an increasing trend in the signal; (2) The peak-to-peak values of piezoelectric ceramic sensors and the WPTEV of the signal increased with the degree of defects, and the WPTEV was more pronounced. For specimen M68, the WPTEV was 3.3 times that of the healthy specimen, however, the peak-to-peak value was only 2.3 times that of the healthy specimen; (3) The degree of defects was accurately determined by the defect evaluation index (EI) based on the WPTEV; (4) The signal was significantly attenuated with the increase in the age of the grouting material, especially in the first three days, and finally the signal achieved a stable value; (5) The numerical simulation indicated that the defects in the length and thickness of the air cavity in the grouting material were efficiently detected by the proposed piezoelectric arrangement in this study. Full article
(This article belongs to the Special Issue Innovation of Seismic Behavior in Structural Engineering)
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