Pub Date : 1900-01-01DOI: 10.2749/nanjing.2022.1111
Chunlei Zhang, C. Shao, Q. Su, Qian Wang, Changyuan Dai
The old Songpu Bridge was a double-deck railway-highway combined steel truss bridge. In the widening and renovation project of Songpu Bridge, the upper deck, which carries highway traffic, was widened from 12 m to 24.5 m. To achieve an appropriate self-weight and better durability, a kind of orthotropic composite deck was used for the reconstructed upper deck; this deck consists of an 80 mm-thick low-shrinkage high-strength ductile concrete (SSDC) layer and orthotropic steel deck plates. Three types of SSDC materials with different composition and mechanical properties are adopted in regions with different tensile stress levels. The detailed design and key considerations of the composite deck are introduced in this paper. Finite element analysis of the composite deck is carried out, and the models and results are presented.
{"title":"Structural Design and Analysis of Orthotropic Steel-SSDC Composite Deck Used for the Widening of the Songpu Bridge","authors":"Chunlei Zhang, C. Shao, Q. Su, Qian Wang, Changyuan Dai","doi":"10.2749/nanjing.2022.1111","DOIUrl":"https://doi.org/10.2749/nanjing.2022.1111","url":null,"abstract":"The old Songpu Bridge was a double-deck railway-highway combined steel truss bridge. In the widening and renovation project of Songpu Bridge, the upper deck, which carries highway traffic, was widened from 12 m to 24.5 m. To achieve an appropriate self-weight and better durability, a kind of orthotropic composite deck was used for the reconstructed upper deck; this deck consists of an 80 mm-thick low-shrinkage high-strength ductile concrete (SSDC) layer and orthotropic steel deck plates. Three types of SSDC materials with different composition and mechanical properties are adopted in regions with different tensile stress levels. The detailed design and key considerations of the composite deck are introduced in this paper. Finite element analysis of the composite deck is carried out, and the models and results are presented.","PeriodicalId":410450,"journal":{"name":"IABSE Congress, Nanjing 2022: Bridges and Structures: Connection, Integration and Harmonisation","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125457508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.2749/nanjing.2022.0483
Yu Zhang, Haili Jiang, Dong Xu
Benefitting from the development of computing power, box girders can be analysed in a more refined way by discretizing cross-sections into shell elements. However, how to take full advantage of the analysis results in the reinforcement design process remains a problem. To solve this problem, the concept of “corresponding force matrix” is proposed in this paper. The matrix has 6 columns corresponding to the key unit force resultants of a specified location, and 12 rows corresponding to all the possible unfavourable cases. For each row, only one force resultant reaches its maximum (or minimum) under loads while the others take the corresponding values. Then the construction method of the proposed matrix under live loads and load combinations is described, respectively. After that, two reinforcement design methods with the use of the matrix were introduced and compared. Finally, discussions and preliminary conclusions are made.
{"title":"Corresponding Force Matrix: A Bridge Connecting Refined Analysis and Reinforcement Design of Box-section Girders Based on Shells","authors":"Yu Zhang, Haili Jiang, Dong Xu","doi":"10.2749/nanjing.2022.0483","DOIUrl":"https://doi.org/10.2749/nanjing.2022.0483","url":null,"abstract":"Benefitting from the development of computing power, box girders can be analysed in a more refined way by discretizing cross-sections into shell elements. However, how to take full advantage of the analysis results in the reinforcement design process remains a problem. To solve this problem, the concept of “corresponding force matrix” is proposed in this paper. The matrix has 6 columns corresponding to the key unit force resultants of a specified location, and 12 rows corresponding to all the possible unfavourable cases. For each row, only one force resultant reaches its maximum (or minimum) under loads while the others take the corresponding values. Then the construction method of the proposed matrix under live loads and load combinations is described, respectively. After that, two reinforcement design methods with the use of the matrix were introduced and compared. Finally, discussions and preliminary conclusions are made.","PeriodicalId":410450,"journal":{"name":"IABSE Congress, Nanjing 2022: Bridges and Structures: Connection, Integration and Harmonisation","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126736174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.2749/nanjing.2022.0410
Ya-ping Lai, Xiao-hu Chen, Fu-cheng Yan
To achieve a cost-effective, rational, and efficient structural system, two traditional structural systems—a continuous rigid frame (CRF) girder bridge and a deck arch bridge—are combined to form a new bridge type—arch-stiffened girder (ASG) bridge. This bridge type fulfil the innovative and unique requirements for the Chongqing Lijia Jialing river bridge. The ASG bridge combines the simplicity of a girder bridge with the elegance of an arch bridge. In terms of structural behaviours, the ASG bridge utilizes the arch to assist the main girder and forms a self-balancing system, significantly reducing the mid-span and side-span girder lengths, and thus optimizing structural performance through increased vertical stiffness and effective control of long-term deflection. This article discusses the major components of the Chongqing Lijia Jialing river bridge's design, construction, load capacity testing, and effects upon completion.
{"title":"Design and Construction of Chongqing Lijia Jialing River Bridge","authors":"Ya-ping Lai, Xiao-hu Chen, Fu-cheng Yan","doi":"10.2749/nanjing.2022.0410","DOIUrl":"https://doi.org/10.2749/nanjing.2022.0410","url":null,"abstract":"To achieve a cost-effective, rational, and efficient structural system, two traditional structural systems—a continuous rigid frame (CRF) girder bridge and a deck arch bridge—are combined to form a new bridge type—arch-stiffened girder (ASG) bridge. This bridge type fulfil the innovative and unique requirements for the Chongqing Lijia Jialing river bridge. The ASG bridge combines the simplicity of a girder bridge with the elegance of an arch bridge. In terms of structural behaviours, the ASG bridge utilizes the arch to assist the main girder and forms a self-balancing system, significantly reducing the mid-span and side-span girder lengths, and thus optimizing structural performance through increased vertical stiffness and effective control of long-term deflection. This article discusses the major components of the Chongqing Lijia Jialing river bridge's design, construction, load capacity testing, and effects upon completion.","PeriodicalId":410450,"journal":{"name":"IABSE Congress, Nanjing 2022: Bridges and Structures: Connection, Integration and Harmonisation","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126537842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.2749/nanjing.2022.1856
Zhanhang Liu, Lin Chen, Limin Sun
Long-span suspension bridges are vulnerable to vortex-induced vibrations (VIVs), e.g., the Humen Bridge and the Xihoumen Bridge in China. This study focuses on a novel strategy by using damped outriggers to control rotations of bridge deck at the junction points between the girder and a bridge tower or pier. A simplified model of a suspension bridge with damped outriggers is used for damping analysis. Considering practical parameter ranges, the maximal damping ratio provided by one damped outrigger to a specific mode is about 1.0%. Influences of bridge boundary conditions, installation position of damped outriggers, and interaction between multiple damped outriggers are studied. When multiple damped outriggers are installed, the damping effects of multiple modes can be further improved. It is shown that damped outriggers are effective in suppressing multimode vibrations of long-span suspension bridges.
{"title":"Damping of long-span suspension bridges with damped outriggers","authors":"Zhanhang Liu, Lin Chen, Limin Sun","doi":"10.2749/nanjing.2022.1856","DOIUrl":"https://doi.org/10.2749/nanjing.2022.1856","url":null,"abstract":"Long-span suspension bridges are vulnerable to vortex-induced vibrations (VIVs), e.g., the Humen Bridge and the Xihoumen Bridge in China. This study focuses on a novel strategy by using damped outriggers to control rotations of bridge deck at the junction points between the girder and a bridge tower or pier. A simplified model of a suspension bridge with damped outriggers is used for damping analysis. Considering practical parameter ranges, the maximal damping ratio provided by one damped outrigger to a specific mode is about 1.0%. Influences of bridge boundary conditions, installation position of damped outriggers, and interaction between multiple damped outriggers are studied. When multiple damped outriggers are installed, the damping effects of multiple modes can be further improved. It is shown that damped outriggers are effective in suppressing multimode vibrations of long-span suspension bridges.","PeriodicalId":410450,"journal":{"name":"IABSE Congress, Nanjing 2022: Bridges and Structures: Connection, Integration and Harmonisation","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126575490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.2749/nanjing.2022.1171
Xiaoming Lei, Ye Xia, Limin Sun
Civil infrastructure has aided economic development and social progress. Existing reinforced concrete beam bridges undoubtedly suffer the damages due to loads, structural defects, etc. To increase the accuracy of safety assessments, a reliable bridge deterioration model is required. This study presents a technique for validating and updating the regional bridge deterioration model by using monitoring data from a few bridges in the area. This method avoids data-level fusion and instead employs model-level fusion. In model validation, it makes full use of the depth of individual bridge monitoring data as well as the breadth of bridge group inspection data. The suggested method is validated in a case study including regional bridges in Northern China. When the number of monitored individual bridges grows, the validation and correction of the regional bridge deterioration model will be more effective.
{"title":"Validation and Updating of Regional Bridge Deterioration Model Incorporating Structural Health Monitoring","authors":"Xiaoming Lei, Ye Xia, Limin Sun","doi":"10.2749/nanjing.2022.1171","DOIUrl":"https://doi.org/10.2749/nanjing.2022.1171","url":null,"abstract":"Civil infrastructure has aided economic development and social progress. Existing reinforced concrete beam bridges undoubtedly suffer the damages due to loads, structural defects, etc. To increase the accuracy of safety assessments, a reliable bridge deterioration model is required. This study presents a technique for validating and updating the regional bridge deterioration model by using monitoring data from a few bridges in the area. This method avoids data-level fusion and instead employs model-level fusion. In model validation, it makes full use of the depth of individual bridge monitoring data as well as the breadth of bridge group inspection data. The suggested method is validated in a case study including regional bridges in Northern China. When the number of monitored individual bridges grows, the validation and correction of the regional bridge deterioration model will be more effective.","PeriodicalId":410450,"journal":{"name":"IABSE Congress, Nanjing 2022: Bridges and Structures: Connection, Integration and Harmonisation","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116617944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.2749/nanjing.2022.0182
Zhimin Xu
Prestressed concrete continuous rigid frame bridge is one of the main types of long-span bridges due to its mature construction technology and low cost during construction and operation. The corresponding design theory and construction technology were focused on the control and prevention technology of cracking and deflection. Based on an actual bridge inspection, obvious connected effect of separated structures was found that additional deformation and stress increase of the amplitude structure induced by the influence of the central transverse connection (diaphragm, central guardrail consolidation base, etc. ) can not be ignored. Suggestions including raising safety coefficient or adopting refined analysis model are provided.
{"title":"Research on the Connected Effect of Separated Bridges Based on a Large-Span Continuous Rigid Frame Bridge","authors":"Zhimin Xu","doi":"10.2749/nanjing.2022.0182","DOIUrl":"https://doi.org/10.2749/nanjing.2022.0182","url":null,"abstract":"Prestressed concrete continuous rigid frame bridge is one of the main types of long-span bridges due to its mature construction technology and low cost during construction and operation. The corresponding design theory and construction technology were focused on the control and prevention technology of cracking and deflection. Based on an actual bridge inspection, obvious connected effect of separated structures was found that additional deformation and stress increase of the amplitude structure induced by the influence of the central transverse connection (diaphragm, central guardrail consolidation base, etc. ) can not be ignored. Suggestions including raising safety coefficient or adopting refined analysis model are provided.","PeriodicalId":410450,"journal":{"name":"IABSE Congress, Nanjing 2022: Bridges and Structures: Connection, Integration and Harmonisation","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121716836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.2749/nanjing.2022.1969
L. Yu, Hui Chen, Chenhui Zhu, Y. Mao, Chun-sheng Wang
Based on the extended finite element method (XFEM), finite element model of a typical steel bridge deck was established to analyze the fatigue crack propagation of diaphragm cutout detail. It was considered the parameters of welding residual stress, vehicle load and initial crack in the fatigue mechanism analysis. Residual tensile stress in the cutout edge of the diaphragm of two types of cutout was calculated. Cutout with higher residual tensile stress provided the welding residual stress field for calculation of fatigue crack propagation. Under coupling action of vehicle load and welding residual field, the fatigue crack in diaphragm cutout edge was mixed mode crack of Modes I, II, dominated by Mode I.
{"title":"Mixed Mode Fatigue Crack Propagation Mechanism of the Diaphragm Cutout Detail in Steel Bridge Deck","authors":"L. Yu, Hui Chen, Chenhui Zhu, Y. Mao, Chun-sheng Wang","doi":"10.2749/nanjing.2022.1969","DOIUrl":"https://doi.org/10.2749/nanjing.2022.1969","url":null,"abstract":"Based on the extended finite element method (XFEM), finite element model of a typical steel bridge deck was established to analyze the fatigue crack propagation of diaphragm cutout detail. It was considered the parameters of welding residual stress, vehicle load and initial crack in the fatigue mechanism analysis. Residual tensile stress in the cutout edge of the diaphragm of two types of cutout was calculated. Cutout with higher residual tensile stress provided the welding residual stress field for calculation of fatigue crack propagation. Under coupling action of vehicle load and welding residual field, the fatigue crack in diaphragm cutout edge was mixed mode crack of Modes I, II, dominated by Mode I.","PeriodicalId":410450,"journal":{"name":"IABSE Congress, Nanjing 2022: Bridges and Structures: Connection, Integration and Harmonisation","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125163920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.2749/nanjing.2022.1791
Xiaohu Chen, Yu Deng, Weizuo Guo, Xinfa Chen
Research on seismic-isolated bridges concerning potential pounding between adjacent units remains limited to date, especially for long-length girder bridge systems consisting of several long- span girder bridges where the wave passage effect is of great significance. To investigate the effect of seismic isolation bearings on the potential pounding between adjacent girders considering the wave passage effect, a finite element model of a bridge system consisting of two box-girder bridges and one long-span hybrid truss-box girder bridge is developed. The results show that under uniform excitations the seismic isolation bearings can reduce the relative displacement at expansion joints and thus improve the performance against pounding. However, the wave passage effect can increase the deformation demands of the expansion joints and improve the probability of pounding even though seismic isolation bearings are used, especially for the low apparent wave velocities.
{"title":"Effect of Seismic Isolation Bearings on the Potential Pounding between Adjacent Girders for Long-Length Girder Bridge Systems","authors":"Xiaohu Chen, Yu Deng, Weizuo Guo, Xinfa Chen","doi":"10.2749/nanjing.2022.1791","DOIUrl":"https://doi.org/10.2749/nanjing.2022.1791","url":null,"abstract":"Research on seismic-isolated bridges concerning potential pounding between adjacent units remains limited to date, especially for long-length girder bridge systems consisting of several long- span girder bridges where the wave passage effect is of great significance. To investigate the effect of seismic isolation bearings on the potential pounding between adjacent girders considering the wave passage effect, a finite element model of a bridge system consisting of two box-girder bridges and one long-span hybrid truss-box girder bridge is developed. The results show that under uniform excitations the seismic isolation bearings can reduce the relative displacement at expansion joints and thus improve the performance against pounding. However, the wave passage effect can increase the deformation demands of the expansion joints and improve the probability of pounding even though seismic isolation bearings are used, especially for the low apparent wave velocities.","PeriodicalId":410450,"journal":{"name":"IABSE Congress, Nanjing 2022: Bridges and Structures: Connection, Integration and Harmonisation","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125228419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.2749/nanjing.2022.1046
Yangwen Zhang, W. Wulff, A. Bleicher, Laurenz Wernicke, T. Schauer, M. Engelmann
This paper presents a sustainable semi-active distributed-Multiple Tuned Facade Damping (d-MTFD) system that utilizes the existing mass of the Double-Skin Facade's outer skin as damping mass to mitigate structural vibrations caused by wind excitation. Based on this concept, a prototype with one full-scale parallel moveable facade element has been developed, built, and validated. A stepper motor working together with its connected energy harvesting circuit is innovatively applied as an adjustable electrical damper and simultaneously as an energy harvester. Its feasibility has been proven through experiments using Hardware-in-the-Loop (HiL) simulations. An energy harvesting efficiency of 75% was achieved by using a two-stage power converter as the energy harvesting circuit. The self-sufficiency of the semi-active d-MTFD system was achieved.
{"title":"Moveable Facade Elements for Sustainable High-rise Buildings","authors":"Yangwen Zhang, W. Wulff, A. Bleicher, Laurenz Wernicke, T. Schauer, M. Engelmann","doi":"10.2749/nanjing.2022.1046","DOIUrl":"https://doi.org/10.2749/nanjing.2022.1046","url":null,"abstract":"This paper presents a sustainable semi-active distributed-Multiple Tuned Facade Damping (d-MTFD) system that utilizes the existing mass of the Double-Skin Facade's outer skin as damping mass to mitigate structural vibrations caused by wind excitation. Based on this concept, a prototype with one full-scale parallel moveable facade element has been developed, built, and validated. A stepper motor working together with its connected energy harvesting circuit is innovatively applied as an adjustable electrical damper and simultaneously as an energy harvester. Its feasibility has been proven through experiments using Hardware-in-the-Loop (HiL) simulations. An energy harvesting efficiency of 75% was achieved by using a two-stage power converter as the energy harvesting circuit. The self-sufficiency of the semi-active d-MTFD system was achieved.","PeriodicalId":410450,"journal":{"name":"IABSE Congress, Nanjing 2022: Bridges and Structures: Connection, Integration and Harmonisation","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127668918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.2749/nanjing.2022.1138
Zhiwei Wang, Wenming Zhang, Yufeng Zhang
As the performance of the electronic equipment for bridge SHM system deteriorates, wind data often suffer from long-term data missing, which creates barriers for safety monitoring of the bridge structures. Therefore, we proposed a framework for long-term missing wind data recovery based on a deep neural network (DNN) utilizing a free access database (ECMWF). This framework consisted of one regression task (Task 1) and one temporal super-resolution task (Task 2). In Task 1, the hourly wind data provided by ECMWF were learned to the hourly ones of the SHM system. In Task 2, the low-resolution wind data were upsampled to high-resolution ones (10-min averages). The U-net architecture provided the basis for the DNNs in both tasks. The proposed framework's feasibility was verified through a case study of Sutong Bridge. The proposed methodology provides a new perspective for recovering long-term continuous missing SHM data.
{"title":"Long-term Missing Wind Data Recovery for Bridge Health Monitoring Using Deep Learning","authors":"Zhiwei Wang, Wenming Zhang, Yufeng Zhang","doi":"10.2749/nanjing.2022.1138","DOIUrl":"https://doi.org/10.2749/nanjing.2022.1138","url":null,"abstract":"As the performance of the electronic equipment for bridge SHM system deteriorates, wind data often suffer from long-term data missing, which creates barriers for safety monitoring of the bridge structures. Therefore, we proposed a framework for long-term missing wind data recovery based on a deep neural network (DNN) utilizing a free access database (ECMWF). This framework consisted of one regression task (Task 1) and one temporal super-resolution task (Task 2). In Task 1, the hourly wind data provided by ECMWF were learned to the hourly ones of the SHM system. In Task 2, the low-resolution wind data were upsampled to high-resolution ones (10-min averages). The U-net architecture provided the basis for the DNNs in both tasks. The proposed framework's feasibility was verified through a case study of Sutong Bridge. The proposed methodology provides a new perspective for recovering long-term continuous missing SHM data.","PeriodicalId":410450,"journal":{"name":"IABSE Congress, Nanjing 2022: Bridges and Structures: Connection, Integration and Harmonisation","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127798966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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