: 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}
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}
: Hospital, as a critical public facility in urban settings, faces the challenges of emergencies that can lead to chaotic evacuation processes, jeopardizing both personnel safety and overall evacuation efficiency. Hospital staff, including doctors, security personnel, and various social roles, play indispensable roles in emergency evacuations. This study conducted two expert questionnaire surveys to investigate the social role identification and performance of hospital staff during routine and emergency situations. The research identified five distinct emergency evacuation roles, offering a clear distinction between the daily behaviors of hospital staff and their evacuation behaviors, while also pinpointing potential influencing factors for these behaviors. Findings revealed that hospital staff would be assumed to play emergency evacuation roles during unforeseen events, with their behavior and performance shaped by a complex interplay of personal characteristics, organizational factors, and environmental considerations. An evacuation role evolution questionnaire was developed and validated, facilitating a comprehensive analysis of phenomena such as role ambiguity, conflicts, and tension that may arise during hospital emergency evacuations
{"title":"Research on Role Identification and Evolution of Hospital Staff in Emergency Evacuation Situations","authors":"Jing Lin, Zhongang Peng, Runhe Zhu, Yan Xue","doi":"10.3724/j.gyjzg23120805","DOIUrl":"https://doi.org/10.3724/j.gyjzg23120805","url":null,"abstract":": Hospital, as a critical public facility in urban settings, faces the challenges of emergencies that can lead to chaotic evacuation processes, jeopardizing both personnel safety and overall evacuation efficiency. Hospital staff, including doctors, security personnel, and various social roles, play indispensable roles in emergency evacuations. This study conducted two expert questionnaire surveys to investigate the social role identification and performance of hospital staff during routine and emergency situations. The research identified five distinct emergency evacuation roles, offering a clear distinction between the daily behaviors of hospital staff and their evacuation behaviors, while also pinpointing potential influencing factors for these behaviors. Findings revealed that hospital staff would be assumed to play emergency evacuation roles during unforeseen events, with their behavior and performance shaped by a complex interplay of personal characteristics, organizational factors, and environmental considerations. An evacuation role evolution questionnaire was developed and validated, facilitating a comprehensive analysis of phenomena such as role ambiguity, conflicts, and tension that may arise during hospital emergency evacuations","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"82 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140463098","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}
: Aiming at the characteristics of large fire load, cramped space, and complex interior decoration of escape rooms, and their safety hazards of rapid fire spread and difficult evacuation after fire, the study was based on the Pyrosim software to investigate the fire spread, smoke flow, visibility changes and temperature changes after fire in the escape room, and to analyze the problems and deficiencies of the existing decoration methods in the case of fire, and to propose improvement measures for the existing decoration methods. The simulation results showed that the design of long and narrow corridors should be avoided in the escape room, and the partition walls of the escape room should be designed with through-roofs in the process of renovation, and the escape room should be equipped with two evacuation paths in order to shorten the escape time to the greatest extent possible. The study of the fire spread characteristics is of great significance to safeguarding the lives of entertainers, and it can also provide a reference for the evacuation of escape room entertainment venues.
{"title":"Research on Fire Spread Characteristics of Escape Room Entertainment Venues with Spatial Complexity","authors":"Jingwei Fu, Lisai Diao, Yinghua Zhang, Cheng Ma, Yukun Gao","doi":"10.3724/j.gyjzg23121007","DOIUrl":"https://doi.org/10.3724/j.gyjzg23121007","url":null,"abstract":": Aiming at the characteristics of large fire load, cramped space, and complex interior decoration of escape rooms, and their safety hazards of rapid fire spread and difficult evacuation after fire, the study was based on the Pyrosim software to investigate the fire spread, smoke flow, visibility changes and temperature changes after fire in the escape room, and to analyze the problems and deficiencies of the existing decoration methods in the case of fire, and to propose improvement measures for the existing decoration methods. The simulation results showed that the design of long and narrow corridors should be avoided in the escape room, and the partition walls of the escape room should be designed with through-roofs in the process of renovation, and the escape room should be equipped with two evacuation paths in order to shorten the escape time to the greatest extent possible. The study of the fire spread characteristics is of great significance to safeguarding the lives of entertainers, and it can also provide a reference for the evacuation of escape room entertainment venues.","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"1216 41","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140466947","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 wind-resistant design of building structures in the typhoon affected area in the codes is carried out by analogy with the non-cyclonic wind field, however, many measured results show that there is a large difference between the typhoon wind profile and the profile of the non-cyclonic wind field, and the influencing factors and changing rules of the typhoon wind profile are still not clear at present. To clearly understand the profile characteristics of typhoons, many measured profile data of several typhoons were used for the analysis. The measured data were categorized by three factors, namely, the underlying surface categories, the typhoon structural partitions,and the wind speed, and the wind profile data of each category were comparatively analyzed, and the study showed that: the low-level jet phenomena in typhoon wind profiles was related to the underlying surface categories, the typhoon structural partitions, and the wind speed, the low-level jets were more likely to occur at exposure category A, B, larger wind speed, and in the back eyewall region in typhoon; there was a certain relationship between the gradient wind height of the typhoon wind profile and the type of underlying surface and average wind speed. The gradient wind height of exposure category A and B showed an increasing trend from the center of the typhoon outward, while the gradient wind height underground of exposure category C showed a decreasing and then increasing trend from the center of the typhoon outward.
:规范中对台风影响区建筑结构的抗风设计是类比非周期性风场进行的，但许多实测结果表明，台风风廓线与非周期性风场的风廓线存在较大差异，目前台风风廓线的影响因素和变化规律仍不明确。为了清楚地了解台风的风廓线特征，本文采用了多个台风的实测风廓线数据进行分析。将实测数据按底面类别、台风结构分区和风速三个因素进行分类，并对各类风廓线数据进行对比分析，研究结果表明： 1：台风风廓线中的低空喷流现象与底面类别、台风结构分区和风速有关，低空喷流更容易出现在暴露类别为A、B、风速较大和台风后眼墙区域；台风风廓线的梯度风高与底面类别和平均风速之间存在一定的关系。A 类和 B 类地下暴露的梯度风高从台风中心向外呈上升趋势，而 C 类地下暴露的梯度风高从台风中心向外呈先下降后上升趋势。
{"title":"Research on Wind Speed Profile Characteristics of Typhoon Boundary Layer Based on Measured Data","authors":"Xigui Huang, Shengchang Luo, Lixiao Li","doi":"10.3724/j.gyjzg23121101","DOIUrl":"https://doi.org/10.3724/j.gyjzg23121101","url":null,"abstract":": The wind-resistant design of building structures in the typhoon affected area in the codes is carried out by analogy with the non-cyclonic wind field, however, many measured results show that there is a large difference between the typhoon wind profile and the profile of the non-cyclonic wind field, and the influencing factors and changing rules of the typhoon wind profile are still not clear at present. To clearly understand the profile characteristics of typhoons, many measured profile data of several typhoons were used for the analysis. The measured data were categorized by three factors, namely, the underlying surface categories, the typhoon structural partitions,and the wind speed, and the wind profile data of each category were comparatively analyzed, and the study showed that: the low-level jet phenomena in typhoon wind profiles was related to the underlying surface categories, the typhoon structural partitions, and the wind speed, the low-level jets were more likely to occur at exposure category A, B, larger wind speed, and in the back eyewall region in typhoon; there was a certain relationship between the gradient wind height of the typhoon wind profile and the type of underlying surface and average wind speed. The gradient wind height of exposure category A and B showed an increasing trend from the center of the typhoon outward, while the gradient wind height underground of exposure category C showed a decreasing and then increasing trend from the center of the typhoon outward.","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"23 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140464028","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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