Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
3.1
3.8
Journals
Buildings
Special Issues
Structural Health Monitoring
share announcement

Structural Health Monitoring

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

Deadline for manuscript submissions: closed (20 March 2023) | Viewed by 20244

Special Issue Editors

Dr. Chunxu Qu

E-Mail Website
Guest Editor
Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China
Interests: structural modal parameter identification; rapid bridge detection and device development; data abnormality diagnosis and processing
Special Issues, Collections and Topics in MDPI journals
Dr. Shibin Lin

E-Mail Website
Guest Editor
School of Civil Engineering, Dalian University of Technology, Dalian 116024, Liaoning Province, China
Interests: nondestructive testing and evaluation; wave theory; structural dynamics and soil dynamics
Dr. Donghui Yang

E-Mail Website
Guest Editor
School of Civil Engineering, Dalian University of Technology, Dalian 116024, Liaoning Province, China
Interests: structural health monitoring and performance evaluation
Special Issues, Collections and Topics in MDPI journals
Dr. Sadegh Shams

E-Mail Website
Guest Editor
Turner-Fairbank Highway Research Center, McLean, VA, USA
Interests: nondestructive evaluation; composite structures; fracture mechanics

Special Issue Information

Dear Colleagues,

Infrastructure, such as bridges, buildings, and dams, suffer extreme load action, which can affect operational performance. To identify this phenomenon as it occurs, structural health monitoring (SHM) has been investigated and applied. The information extraction or performance evaluation from monitoring data is the focus of SHM research. Therefore, the objective of this Special Issue is to bring the most recent research trends and advances in SHM to identify structural change under long term service and evaluate structural performance. Potential topics include, but are not limited to：

  • structural health monitoring;
  • damage identification;
  • modal analysis;
  • Intelligent algorithms for data mining;
  • optimal sensor placement;
  • performance evaluation;
  • field tesing;
  • model updating;
  • other related aspects.

Dr. Chunxu Qu
Dr. Shibin Lin
Dr. Donghui Yang
Dr. Sadegh Shams
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

  • structural health monitoring
  • damage identification
  • modal analysis
  • intelligent algorithms for data mining
  • performance evaluation
  • field testing

Published Papers (10 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

18 pages, 5185 KiB  
Article
Seismic Performance and Optimization Design of a Post-Installed Elevator Shear Wall Structure
by Yuguo Chen, Linmin Shen, Ming Wen, Baokui Chen and Jian Jiang
Buildings 2023, 13(1), 194; https://doi.org/10.3390/buildings13010194 - 11 Jan 2023
Cited by 3 | Viewed by 2167
Abstract
Post-installed elevator projects have grown significantly in recent years in response to the problem of insufficient vertical traffic capacity in existing buildings, but research on the seismic performance of post-installed elevator structures has been relatively limited. This study takes a 26-story-frame shear wall [...] Read more.
Post-installed elevator projects have grown significantly in recent years in response to the problem of insufficient vertical traffic capacity in existing buildings, but research on the seismic performance of post-installed elevator structures has been relatively limited. This study takes a 26-story-frame shear wall structure as an example. The seismic response characteristics of this structure before and after the installation of elevators were analyzed. In order to optimize the design scheme of the post-installed elevator structure, this study further analyzed how factors such as the standard height of the elevator shaft frame, the elevator location, and the way the post-installed elevator is connected to the structure affect the seismic response of the elevator structure. The results show that the post-installed elevators have a small impact on the seismic performance of the existing building and can slightly reduce the seismic response of the structure. In addition, the stiffness of the elevator shaft will be reduced, and its seismic response will be slightly increased as the standard shaft height is increased, but the construction cost can be reduced. The installation location has a greater impact on the seismic response of the post-installed elevator. The seismic response of the post-installed elevator is minimal when it is arranged near the elevator shaft of the existing building. Full article
(This article belongs to the Special Issue Structural Health Monitoring)
►▼ Show Figures

Figure 1

31 pages, 14077 KiB  
Article
CCTV Camera Array for the Displacement and Strain Measurement of a Beam Specimen in a Laboratory
by Rujika Tuladhar, Punchet Thammarak and Said Elias
Buildings 2022, 12(11), 1778; https://doi.org/10.3390/buildings12111778 - 24 Oct 2022
Cited by 1 | Viewed by 1305
Abstract
The available conventional sensors, like displacement transducers, used in the Structural Engineering Laboratory are expensive. In addition to that, the need for data acquisition devices also escalates the expense invested in point contact measurement systems. The recent appeal of vision-based measurement and the [...] Read more.
The available conventional sensors, like displacement transducers, used in the Structural Engineering Laboratory are expensive. In addition to that, the need for data acquisition devices also escalates the expense invested in point contact measurement systems. The recent appeal of vision-based measurement and the search for cost-effectiveness has led to an exploration of the established sampling moiré method using cheap closed-circuit television (CCTV) cameras as a viable option. The sampling moiré method is simple and analyzes the displacements from grating images by a phase-shifting method. Several trial experiments were conducted, which demonstrated that the setup is at least as accurate as the traditional measuring system. An experiment was conducted on a steel I-beam for displacement measurement, which displayed satisfactory results. In addition, the setup was also tested for strain measurement, and it has yielded promising results that need fine-tuning. This paper discusses the challenges, findings, and the possibility of incorporating vision-based displacement measurements in laboratory platforms. Full article
(This article belongs to the Special Issue Structural Health Monitoring)
►▼ Show Figures

Figure 1

35 pages, 14277 KiB  
Article
Load versus Strain Relationships of Single and Continuous Span Full-Scale Pre-cast Prestressed Concrete Girders for Monorail Systems
by Suniti Suparp, Athasit Sirisonthi, Nazam Ali, Noha Saad, Krisada Chaiyasarn, Marc Azab, Panuwat Joyklad and Qudeer Hussain
Buildings 2022, 12(8), 1164; https://doi.org/10.3390/buildings12081164 - 04 Aug 2022
Cited by 1 | Viewed by 1224
Abstract
Full-scale testing of multiple span girders is scarce in the literature, often related to the complexity of loading setup and time constraints. The importance of full-scale tests is manifested in the fact that useful information regarding failure mechanisms can be obtained. In addition, [...] Read more.
Full-scale testing of multiple span girders is scarce in the literature, often related to the complexity of loading setup and time constraints. The importance of full-scale tests is manifested in the fact that useful information regarding failure mechanisms can be obtained. In addition, important guidelines can be established for structural designers. Further, results from full-scale tests can help establish constitutive laws for various mechanisms involved in the response of actual structures. The structural performance of individual members can be assessed by monitoring their strains at service and ultimate loads. This study presents a comparison of experimentally monitored strains on longitudinal steel bars, stirrups, and prestressing tendons embedded in single and multi-span full-scale precast pre-tensioned girders. These girders were constructed and detailed to simulate the response of newly proposed straddle-type monorail girders. Single-span girders were tested under monotonic two-point service and ultimate loads, whereas multi-span girders were tested under both two- and four-point service and ultimate load. It was revealed that longitudinal steel and prestressing tendon strains monitored within single-span girders at service and ultimate loads were significantly higher than those recorded at corresponding locations in multi-span girders. Full article
(This article belongs to the Special Issue Structural Health Monitoring)
►▼ Show Figures

Figure 1

16 pages, 8210 KiB  
Article
Image-Based Crack Detection Method for FPSO Module Support
by Xin Su, Ziguang Jia, Guangda Ma, Chunxu Qu, Tongtong Dai and Liang Ren
Buildings 2022, 12(8), 1147; https://doi.org/10.3390/buildings12081147 - 01 Aug 2022
Cited by 4 | Viewed by 1457
Abstract
Floating Production Storage and Offloading (FPSO) is essential offshore equipment for developing offshore oil and gas. Due to the complex sea conditions, FPSOs will be subjected to long-term alternate loads under some circumstances. Thus, it is inevitable that small cracks occur in the [...] Read more.
Floating Production Storage and Offloading (FPSO) is essential offshore equipment for developing offshore oil and gas. Due to the complex sea conditions, FPSOs will be subjected to long-term alternate loads under some circumstances. Thus, it is inevitable that small cracks occur in the upper part of the module pier. Those cracks may influence the structure’s safety evaluation. Therefore, this paper proposes a method for the FPSO module to support crack identification based on the PSPNet model. The main idea is to introduce an attention mechanism into the model with Mobilenetv2 as the backbone of the PSPNet, which can fuse multiple feature maps and increase context information. The detail feature loss caused by multiple convolutions and compressions in the original model was solved by applying the proposed method. Moreover, the attention mechanism is introduced to enhance the extraction of adequate information and suppress invalid information. The mPA value and MIoU value of the improved model increased by 2.4% and 1.8%, respectively, through verification on FPSO datasets. Full article
(This article belongs to the Special Issue Structural Health Monitoring)
►▼ Show Figures

Figure 1

25 pages, 7159 KiB  
Article
Research on Seismic Performance of Frame Structure with Beam Staircases
by Ming Wen, Hongxiang Tian, Weiwei Wang, Baokui Chen and Huayao Fu
Buildings 2022, 12(8), 1106; https://doi.org/10.3390/buildings12081106 - 27 Jul 2022
Cited by 1 | Viewed by 1790
Abstract
Beam staircases are widely used in frame structures. In structural design, stair flights are often ignored in the model establishment, and their loads are only added to the stair beams. However, under a seismic load, the flight of stairs will increase the staircase’s [...] Read more.
Beam staircases are widely used in frame structures. In structural design, stair flights are often ignored in the model establishment, and their loads are only added to the stair beams. However, under a seismic load, the flight of stairs will increase the staircase’s stiffness and affect the seismic response characteristics of the stairs and even of the structure. According to the engineering example, the finite element numerical models of the pure frame structure without staircases, the frame structure with fixed connection beam staircases, and the frame structure with sliding connection beam staircases were established. Modal analysis, response spectrum analysis, and elastic time-history analysis were carried out. By comparing the maximum story displacement, story displacement angle, natural period, story shear force, and the internal force of components of each model, the influences of beam staircases and their bearing connection mode on the seismic performance of the building were analyzed. In addition, by examining the frame model with sliding connection beam stairs, the influences of different staircase positions on the seismic performance of the building were studied. Finally, the advantages and disadvantages of different design schemes were compared, and the effects of the modeling method, support type, and layout position of the beam staircases on the seismic performance of the frame structure were summarized. The conclusions are that the story drift angle of the sliding connection structure is larger than that of the fixed connection structure, and the internal force of the frame columns of the former is smaller than that of the latter. Moreover, the positions of the staircase will affect the horizontal displacement of the structure. Full article
(This article belongs to the Special Issue Structural Health Monitoring)
►▼ Show Figures

Figure 1

16 pages, 6008 KiB  
Article
Identification of Wind Loads on Structures Based on Modal Kalman Filter with Unknown Inputs
by Pingnan Zhao, Lijun Liu and Ying Lei
Buildings 2022, 12(7), 1003; https://doi.org/10.3390/buildings12071003 - 13 Jul 2022
Viewed by 1799
Abstract
Wind loads on structures are difficult to directly measure, so it is practical to identify structural wind loads based on the measurements of structural responses. However, this inversed problem is challenging compared with conventional load identification as wind loads are time-space coupled and [...] Read more.
Wind loads on structures are difficult to directly measure, so it is practical to identify structural wind loads based on the measurements of structural responses. However, this inversed problem is challenging compared with conventional load identification as wind loads are time-space coupled and spatially distributed dynamic loads on structures. An improved method is proposed for identifying wind loads on structures using only partial measurements of structural acceleration responses in this paper. First, the wind loads on a structure are decomposed by proper orthogonal decomposition as a series of time-space decoupled sub-distributed dynamic loads with independent basic spatial distribution functions and time history functions. Herein, structural modes are adopted as the basic spatial distribution functions and structural modes of discretized and continuous structural systems are investigated. Then, a history function of the decomposed wind load is identified in the modal domain based on modal Kalman filter with unknown inputs, which is proposed by the authors. Finally, the distributed wind loads are reconstructed for discrete or continuous structural systems. The feasibility of the proposed algorithm is verified by two numerical examples of identification of wind loads on a discrete shear frame and a wind turbine tower, respectively. Full article
(This article belongs to the Special Issue Structural Health Monitoring)
►▼ Show Figures

Figure 1

16 pages, 6315 KiB  
Article
Seismic Performance and Optimization of a Novel Partial Seismic Isolation System for Frame Structures
by Baokui Chen, Yuxin Qiu, Jingang Xiong, Yaru Liu and Yanqing Xu
Buildings 2022, 12(7), 876; https://doi.org/10.3390/buildings12070876 - 22 Jun 2022
Cited by 1 | Viewed by 1795
Abstract
To improve the safety performance of important rooms, such as operating rooms and disaster command centers, during an earthquake, a novel partial seismic isolation system suitable for new and existing frame structures is proposed, and the seismic and optimization analysis is carried out. [...] Read more.
To improve the safety performance of important rooms, such as operating rooms and disaster command centers, during an earthquake, a novel partial seismic isolation system suitable for new and existing frame structures is proposed, and the seismic and optimization analysis is carried out. Using the finite element numerical simulation method, the models of the ordinary frame structure and the partial isolated system structures were established. Considering the seismic response of the isolation room, the design safety of the partial isolation room, and the seismic impact on the overall structure, this study analyzed the damping effect of the partial isolation system. We changed the type of isolation bearing, the location of the isolation room, and the load to further optimize the calculation of the seismic isolation structure. The results show that the new partial isolation system could significantly reduce the seismic response of the isolated room under the action of a magnitude-8 rare earthquake. The damping rate of the relative acceleration and relative displacement between the top and bottom of the columns of the isolated room could reach 90%. It was found that the partial seismic isolation system proposed in this paper was applicable to reinforced concrete frame structures and could significantly reduce the seismic response of the isolated rooms without affecting the seismic performance of the main building. This partial seismic isolation system is easy to construct, applicable to both existing and new structures, and provides a new and effective seismic mitigation measure to improve the seismic performance of locally important rooms in the structure. Full article
(This article belongs to the Special Issue Structural Health Monitoring)
►▼ Show Figures

Figure 1

18 pages, 4267 KiB  
Article
Method for Ranking Pulse-like Ground Motions According to Damage Potential for Reinforced Concrete Frame Structures
by Qinghui Lai, Jinjun Hu, Longjun Xu, Lili Xie and Shibin Lin
Buildings 2022, 12(6), 754; https://doi.org/10.3390/buildings12060754 - 01 Jun 2022
Cited by 2 | Viewed by 1488
Abstract
To rank the pulse-like ground motions based on the damage potential to different structures, the internal relationship between the damage potential of pulse-like ground motions and engineering demand parameters (EDPs) is analyzed in this paper. First, a total of 240 pulse-like [...] Read more.
To rank the pulse-like ground motions based on the damage potential to different structures, the internal relationship between the damage potential of pulse-like ground motions and engineering demand parameters (EDPs) is analyzed in this paper. First, a total of 240 pulse-like ground motions from the NGA-West2 database and 16 intensity measures (IMs) are selected. Moreover, four reinforced concrete frame structures with significantly different natural vibration periods are established for dynamic analysis. Second, the efficiency and sufficiency of the IMs of ground motion are analyzed, and the IMs that can be used to efficiently and sufficiently evaluate the EDPs are obtained. Then, based on the calculation results, the principal component analysis (PCA) method is employed to obtain a comprehensive IM for characterizing the damage potential of pulse-like ground motions for specific building structures and EDPs. Finally, the pulse-like ground motions are ranked based on the selected IM and the comprehensive IM for four structures and three EDPs. The results imply that the proposed method can be used to efficiently and sufficiently characterize the damage potential of pulse-like ground motions for building structures. Full article
(This article belongs to the Special Issue Structural Health Monitoring)
►▼ Show Figures

Figure 1

12 pages, 34456 KiB  
Article
Failure Analysis of Transmission Tower in Full-Scale Tests
by Xiuyun Gao, Rong Yi, Lingquan Zhang, Xiao Jiang and Jiaxiang Li
Buildings 2022, 12(4), 389; https://doi.org/10.3390/buildings12040389 - 22 Mar 2022
Cited by 4 | Viewed by 3573
Abstract
With the rapid development of Ultra-High Voltage (UHV) transmission lines, it is necessary to study the performance of UHV transmission towers. First, we performed full-scale tests on a transmission tower under seven loading patterns. Then, the test results were compared with the calculation [...] Read more.
With the rapid development of Ultra-High Voltage (UHV) transmission lines, it is necessary to study the performance of UHV transmission towers. First, we performed full-scale tests on a transmission tower under seven loading patterns. Then, the test results were compared with the calculation results of the Chinese tower design software Transmission Tower Analysis Program (TTA), and the failure location of the tower and the stress characteristics of the key parts were studied. Finally, we discuss the influence of bolt slippage and a new joint on the tower performance, and propose some design proposals for the current Chinese code, based on the test results. The results show that a bolt slip will significantly increase the displacement of the transmission tower, but the residual displacement can correct it. The new joint design has good mechanical performance. The bracing member at the bottom of the tower leg is located at the connection of the tower leg and the foundation, and there is a significant sudden change in stiffness, which we recommend designing according to 4% of the axial force of the main members. Full article
(This article belongs to the Special Issue Structural Health Monitoring)
►▼ Show Figures

Figure 1

24 pages, 8969 KiB  
Article
Serious Damage Localization of Continuous Girder Bridge by Support Reaction Influence Lines
by Qifeng Cheng, Xuzhi Ruan, Yize Wang and Zhiwei Chen
Buildings 2022, 12(2), 182; https://doi.org/10.3390/buildings12020182 - 05 Feb 2022
Cited by 4 | Viewed by 1851
Abstract
A novel damage detection approach is proposed in this study for a continuous girder bridge in which support reaction influence lines (ILs) are adopted. First, the relationship between the local damage of a continuous girder bridge and a damage index, based on support [...] Read more.
A novel damage detection approach is proposed in this study for a continuous girder bridge in which support reaction influence lines (ILs) are adopted. First, the relationship between the local damage of a continuous girder bridge and a damage index, based on support reaction ILs, is established through analytical derivation. Subsequently, the sensitivity of a support reaction IL-based damage index is analyzed using Dempster-Shafer (D-S) evidence theory, and it shows that the support reaction IL-based damage index is more noise-resistant if more support reaction ILs from a variety of locations are used. Three case studies (a simple numerical study of a two-span continuous beam, a laboratory experimental study of a two-span aluminum beam, and a complicated numerical study of a continuous girder bridge in Xiamen) have been conducted to validate the effectiveness of the proposed method in different damage scenarios, including single damage and multiple damages. Satisfactory damage identification results can be obtained even in high-level measurement noise conditions, showing that the proposed approach offers a promising field detection technique for identifying local structural damages in continuous girder bridges. Full article
(This article belongs to the Special Issue Structural Health Monitoring)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-10
Back to TopTop