: After disasters, especially earthquakes, the vulnerability of hospitals becomes increasingly evident, and the resilience of hospitals plays a crucial role in disaster prevention, mitigation, adaptation, and recovery in seismic areas. The research on seismic resilience of hospitals is not limited to the structural safety of hospitals, but focus more on the seismic performance of non-structural componentsand medical equipment within hospitals, as well as quantification and rapidly recover of hospital functions after earth-quakes. The paper explored the connotation, theoretical framework, and modeling methods of hospital resilience from engineering dimension. By reviewing the progress of hospital resilience research at home and a-broadd, the connections and distinctions among relevant concepts of hospital resilience were analyzed, and qualitative and quantitative methods for assessing hospital resilience were summarized. Finally, the paper provided an outlook on future directions and research points in light of the limitations of existing research.
{"title":"Research Progress on Seismic Resilience of Hospitals","authors":"Zhi Sun, Shunshun Pei, Changhai Zhai, Peng Yu","doi":"10.3724/j.gyjzg23121431","DOIUrl":"https://doi.org/10.3724/j.gyjzg23121431","url":null,"abstract":": After disasters, especially earthquakes, the vulnerability of hospitals becomes increasingly evident, and the resilience of hospitals plays a crucial role in disaster prevention, mitigation, adaptation, and recovery in seismic areas. The research on seismic resilience of hospitals is not limited to the structural safety of hospitals, but focus more on the seismic performance of non-structural componentsand medical equipment within hospitals, as well as quantification and rapidly recover of hospital functions after earth-quakes. The paper explored the connotation, theoretical framework, and modeling methods of hospital resilience from engineering dimension. By reviewing the progress of hospital resilience research at home and a-broadd, the connections and distinctions among relevant concepts of hospital resilience were analyzed, and qualitative and quantitative methods for assessing hospital resilience were summarized. Finally, the paper provided an outlook on future directions and research points in light of the limitations of existing research.","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"246 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140466434","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}
: The connotation, characteristics, and evaluation methods of the resilience of waterlogging prevention and control management systems were studied. A resilience enhancement strategy for waterlogging prevention and control management systems was proposed from three perspectives of spatial planning, engineering construction, and management mechanism. The overall planning takes urban drainage system as the core, emphasizes the relation with urban flood control, including provisions for emergency capacity and out-lets for excessive rainfall. The urban flood drainage capacity is systematically improved throughout the entire process from source to end point by considering construction standards for system facilities, mutual a-daptability, and waterlogging prevention design. Management systems and intelligent approaches for pre-disaster prevention, resistance during disasters, and recovery after disasters are integrated to enhance the a-daptability, recoverability, and disaster intelligence.
{"title":"Analysis of Strategies for Enhancing the Resilience of Urban Waterlogging Prevention and Control Management Systems","authors":"Yuqing Lei, Yun Zhang, Shouyou Gao","doi":"10.3724/j.gyjzg23122230","DOIUrl":"https://doi.org/10.3724/j.gyjzg23122230","url":null,"abstract":": The connotation, characteristics, and evaluation methods of the resilience of waterlogging prevention and control management systems were studied. A resilience enhancement strategy for waterlogging prevention and control management systems was proposed from three perspectives of spatial planning, engineering construction, and management mechanism. The overall planning takes urban drainage system as the core, emphasizes the relation with urban flood control, including provisions for emergency capacity and out-lets for excessive rainfall. The urban flood drainage capacity is systematically improved throughout the entire process from source to end point by considering construction standards for system facilities, mutual a-daptability, and waterlogging prevention design. Management systems and intelligent approaches for pre-disaster prevention, resistance during disasters, and recovery after disasters are integrated to enhance the a-daptability, recoverability, and disaster intelligence.","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"102 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140466359","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}
: High-density building clusters, with a large population, a number of high-rise buildings, and significant assets, have been noticeable in the context of economic and urbanization progress. These provide focal points as well as new challenges for urban seismic mitigation and disaster prevention. Concurrently, with the progress in seismic engineering research and its practical applications, traditional seismic risks, such as structural collapses, have seen a gradual decline. Nonetheless, novel seismic disasters, such as post-earthquake falling debris and fires, have gained prominence. These are extremely destructive and lack effective mitigation measures. Therefore, the paper focused on four typical novel seismic secondary disasters: post-earthquake falling debris, post-earthquake fires, people trapped in elevators under earthquakes, and site-city interaction effects. The current preliminary research findings on novel seismic secondary disasters were summarized, and an outlook on future research directions was proposed, so as to provide a scholarly reference for the exploration of novel seismic disasters.
{"title":"A Review on Novel Seismic Secondary Disasters in Urban Dense Building Areas","authors":"Xinzheng Lu, Qingrui Yue, Zhen Xu, Yixing Wang, Donglian Gu, Yuan Tian","doi":"10.3724/j.gyjzg23121501","DOIUrl":"https://doi.org/10.3724/j.gyjzg23121501","url":null,"abstract":": High-density building clusters, with a large population, a number of high-rise buildings, and significant assets, have been noticeable in the context of economic and urbanization progress. These provide focal points as well as new challenges for urban seismic mitigation and disaster prevention. Concurrently, with the progress in seismic engineering research and its practical applications, traditional seismic risks, such as structural collapses, have seen a gradual decline. Nonetheless, novel seismic disasters, such as post-earthquake falling debris and fires, have gained prominence. These are extremely destructive and lack effective mitigation measures. Therefore, the paper focused on four typical novel seismic secondary disasters: post-earthquake falling debris, post-earthquake fires, people trapped in elevators under earthquakes, and site-city interaction effects. The current preliminary research findings on novel seismic secondary disasters were summarized, and an outlook on future research directions was proposed, so as to provide a scholarly reference for the exploration of novel seismic disasters.","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"272 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140466514","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}
: The concrete of bridge pile foundations always bear excessive axial loads, and accompanying with its internal failure and crack process, elastic waves will be emitted. In order to quantify the characteristics of the entire instability evolution process of concrete, the temporal and spatial evolution characteristics of acoustic emission in the whole loading process of concrete specimens drilled in situ from bridge pile foundation structures were studied and synchronous monitoring tests of axial compression and acoustic emission were conducted. The relation between the whole process of compressive instability and the acoustic emission ringing counts, energy release, focal locations and other characterization parameters were analyzed. Then, a quantitative description of the correlation between the loading process and acoustic emission characteristics was obtained, and its instability evolution process was analyzed. The results indicated that the stress of concrete specimens under axial compression was consistent with the change law of the acoustic emission ringing counts and energy release with times, and the acoustic emission positioning points mainly located in a macro “positio-ning zone” in the shear stress concentration area, which was consistent with the development and failure of concrete cracks. The loading stage of concrete could be quantitatively judged according to activity of acoustic emission, which could reflected the critical characteristics of concrete instability, and was of great significance to service monitoring of pile foundation concrete.
{"title":"Study on Acoustic Emission Characteristics and Instability Evolution Processes of Concrete Under Axial Compression","authors":"Yahan Yang, Zeming Yu, Cantian Li, Chengfa Zhu, Bingshu Wang, Chunhui Zhang, Zhibing Yu, Ouyang Wei, Xinwei Zhang","doi":"10.3724/j.gyjzg24010402","DOIUrl":"https://doi.org/10.3724/j.gyjzg24010402","url":null,"abstract":": The concrete of bridge pile foundations always bear excessive axial loads, and accompanying with its internal failure and crack process, elastic waves will be emitted. In order to quantify the characteristics of the entire instability evolution process of concrete, the temporal and spatial evolution characteristics of acoustic emission in the whole loading process of concrete specimens drilled in situ from bridge pile foundation structures were studied and synchronous monitoring tests of axial compression and acoustic emission were conducted. The relation between the whole process of compressive instability and the acoustic emission ringing counts, energy release, focal locations and other characterization parameters were analyzed. Then, a quantitative description of the correlation between the loading process and acoustic emission characteristics was obtained, and its instability evolution process was analyzed. The results indicated that the stress of concrete specimens under axial compression was consistent with the change law of the acoustic emission ringing counts and energy release with times, and the acoustic emission positioning points mainly located in a macro “positio-ning zone” in the shear stress concentration area, which was consistent with the development and failure of concrete cracks. The loading stage of concrete could be quantitatively judged according to activity of acoustic emission, which could reflected the critical characteristics of concrete instability, and was of great significance to service monitoring of pile foundation concrete.","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"80 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140466338","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}
{"title":"Industrial Superstructure Safety Risk Assessment Based on the Theoretical Framework of “Risk Source-Risk Exposure-Mitigation Force”","authors":"Wenhong Huang, Yingju Zhang, Chang Su, Wangbo HE","doi":"10.3724/j.gyjzg23121004","DOIUrl":"https://doi.org/10.3724/j.gyjzg23121004","url":null,"abstract":"","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"16 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140468187","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}
: The complexity of major transportation infrastructure projects makes them prone to various conflicts of interest during the construction process, and various risk factors interact with each other, which can easily lead to social stability problems. In the paper, social stability risks were divided into internal risks and external risks, social stability risk indicators were selected based on the five dimensions of government, public, ecology, economy and society, the risk coupling relations of each dimension was analyzed, a coupling model of social stability risks of major transportation infrastructure construction projects based on sys-tem dynamics was established
{"title":"Scenario Simulation of Social Stability Risks of a Tunnel Project in Qingdao Based on System Dynamics Model","authors":"Zhiguo Shao, Changqin Ai, Mengdi Li","doi":"10.3724/j.gyjzg23120803","DOIUrl":"https://doi.org/10.3724/j.gyjzg23120803","url":null,"abstract":": The complexity of major transportation infrastructure projects makes them prone to various conflicts of interest during the construction process, and various risk factors interact with each other, which can easily lead to social stability problems. In the paper, social stability risks were divided into internal risks and external risks, social stability risk indicators were selected based on the five dimensions of government, public, ecology, economy and society, the risk coupling relations of each dimension was analyzed, a coupling model of social stability risks of major transportation infrastructure construction projects based on sys-tem dynamics was established","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"291 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140470274","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}
: To ensure the construction safety of high-formwork support structures, a set of construction intelligent real-time monitoring method based on computer vision and finite element technology was proposed. A refined finite element model was established according to the real situation of the rods arrangement of the high-formwork support structure, and the buckling analysis was carried out under a variety of working conditions, so as to obtain the vertical displacement of the key joints during the buckling damage of the high-formwork support structure, and to obtain the alarm threshold value of the intelligent real-time monitoring of the construction. The intelligent real-time monitoring algorithm based on computer vision was developed to monitor the displacement changes of the high-formwork support structure in the construction process in real time, and the algorithm will automatically alarm and guide the elimination of dangers and the protection of construction safety when unsafe displacement occurs. After the construction, according to the theoretical calculation re-sults and the actual measurement results, the finite element model was corrected parametrically, and the corrected finite element model was subjected to buckling damage analysis, and the sizes of the corrected buck-ling vertical displacement and the alarm threshold were compared to illustrate the reasonableness of the alarm threshold. The successful completion of a high-formwork support structure project for a multi-use building verified the effectiveness of the new construction monitoring method proposed in the paper.
{"title":"A Safety Monitoring Method for High-Formwork Support Structures Based on Computer Vision Recognition","authors":"Changzheng Chi, Bo Pang, Jiangtao REN, Yin Lu, Xianzhe Li, Mingfeng Huang","doi":"10.3724/j.gyjzg23121903","DOIUrl":"https://doi.org/10.3724/j.gyjzg23121903","url":null,"abstract":": To ensure the construction safety of high-formwork support structures, a set of construction intelligent real-time monitoring method based on computer vision and finite element technology was proposed. A refined finite element model was established according to the real situation of the rods arrangement of the high-formwork support structure, and the buckling analysis was carried out under a variety of working conditions, so as to obtain the vertical displacement of the key joints during the buckling damage of the high-formwork support structure, and to obtain the alarm threshold value of the intelligent real-time monitoring of the construction. The intelligent real-time monitoring algorithm based on computer vision was developed to monitor the displacement changes of the high-formwork support structure in the construction process in real time, and the algorithm will automatically alarm and guide the elimination of dangers and the protection of construction safety when unsafe displacement occurs. After the construction, according to the theoretical calculation re-sults and the actual measurement results, the finite element model was corrected parametrically, and the corrected finite element model was subjected to buckling damage analysis, and the sizes of the corrected buck-ling vertical displacement and the alarm threshold were compared to illustrate the reasonableness of the alarm threshold. The successful completion of a high-formwork support structure project for a multi-use building verified the effectiveness of the new construction monitoring method proposed in the paper.","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"209 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140462870","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}
Wenbo Qin, Cheng Zhou, Jian Chen, Fan Wang, Wenli Liu
: With the rapid development of metro networks in major cities in China, the challenges and bottlenecks faced by the operation and maintenance management of metro bridge and tunnel structures have become increasingly significant. In order to improve the structural safety of metro bridges and tunnels in operation, a digital twin-based platform framework for metro bridge and tunnel structure service was proposed. First, the application requirements of digital twins in the operation and maintenance of metro bridge and tunnel structures were analyzed. Then, the digital twin model structure, operation mechanism and platform architecture design were proposed based on those requirements. Finally, the functional application of digital twins for operations and maintenances of metro bridges and tunnels were elaborated, which would provide a new technical support program for operation and maintenance management of urban rail transportation facilities and structures.
{"title":"Digital Twin-Based Platform Framework for Metro Bridge and Tunnel Structure Service","authors":"Wenbo Qin, Cheng Zhou, Jian Chen, Fan Wang, Wenli Liu","doi":"10.3724/j.gyjzg24010401","DOIUrl":"https://doi.org/10.3724/j.gyjzg24010401","url":null,"abstract":": With the rapid development of metro networks in major cities in China, the challenges and bottlenecks faced by the operation and maintenance management of metro bridge and tunnel structures have become increasingly significant. In order to improve the structural safety of metro bridges and tunnels in operation, a digital twin-based platform framework for metro bridge and tunnel structure service was proposed. First, the application requirements of digital twins in the operation and maintenance of metro bridge and tunnel structures were analyzed. Then, the digital twin model structure, operation mechanism and platform architecture design were proposed based on those requirements. Finally, the functional application of digital twins for operations and maintenances of metro bridges and tunnels were elaborated, which would provide a new technical support program for operation and maintenance management of urban rail transportation facilities and structures.","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"215 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140463090","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}
Jun Song, Huiquan Miao, Zilan Zhong, Yanqiong Ding, Mi Zhao, Xiuli DU
: In view of the existing various seismic hazard analysis methods, the seismic hazard analysis method based on historical seismic intensity data and the probabilistic seismic hazard analysis method to analyze the seismic hazards of the main urban area in Beijing was taken, and the peak ground acceleration with a probability of exceeding 10% in 50 years was obtained. The results showed that the peak ground acceleration of the main urban area in Beijing was of obvious spatial variability, which was gradually increasing from the west of the city to the east; the results obtained from those two methods were reliable and the differences were slight. The methods had their own characteristics, the former had fewer assumptions including site effects and was moderately difficult to calculate
{"title":"Comparisons of Seismic Hazard Analysis Methods for Engineering Sites","authors":"Jun Song, Huiquan Miao, Zilan Zhong, Yanqiong Ding, Mi Zhao, Xiuli DU","doi":"10.3724/j.gyjzg23120204","DOIUrl":"https://doi.org/10.3724/j.gyjzg23120204","url":null,"abstract":": In view of the existing various seismic hazard analysis methods, the seismic hazard analysis method based on historical seismic intensity data and the probabilistic seismic hazard analysis method to analyze the seismic hazards of the main urban area in Beijing was taken, and the peak ground acceleration with a probability of exceeding 10% in 50 years was obtained. The results showed that the peak ground acceleration of the main urban area in Beijing was of obvious spatial variability, which was gradually increasing from the west of the city to the east; the results obtained from those two methods were reliable and the differences were slight. The methods had their own characteristics, the former had fewer assumptions including site effects and was moderately difficult to calculate","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"480 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140466040","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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