{"title":"Research on Two-Stage Damage Identification of Steel Frame Based on CNN and CMCM","authors":"Neng Wan, Minshui Huang, Hongping Zhu","doi":"10.3724/j.gyjzg23072612","DOIUrl":"https://doi.org/10.3724/j.gyjzg23072612","url":null,"abstract":"","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"31 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140524039","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":"Research on Process-Based Carbon Emissions of Floor Construction of Prefabricated Steel Structures","authors":"Zujian Huang, Hao Zhou, Juan Yu, Borong Lin","doi":"10.3724/j.gyjzg23112905","DOIUrl":"https://doi.org/10.3724/j.gyjzg23112905","url":null,"abstract":"","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"10 5‐6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139640714","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}
Jinlong Ren, Muning Rong, Yunlin Xing, Ming Zheng, Xin Nie, Jiansheng FAN, Yufei Liu
: Micro vibration control is one of the most important goals in the construction of ultraprecise and large-scale scientific facilities. In order to meet the requirements for micro vibration control in High Energy Photo Source (HEPS), Beijing, a 1-meter-thick reinforced concrete slab with a 3-meter-thick concrete layer has been cast. The paper presented a field test of an artificial frequency sweep test from 1 to 100 Hz after the completion of the main structure in HEPS. Based on the analysis of the obtained vibration signals in the time domain and frequency domain, an evaluation of the micro vibration level and the micro vibration control capacity of the slab was conducted. The results indicated that under the vibrator’s excitation from 1 to 100 Hz, the mass concrete slab of experimental hall performed well in micro vibration control.
{"title":"Micro Vibration Test and Analysis in Experiment Hall of Beijing High Energy Photon Source Facility Induced by Artificial Frequency Sweep Excitation","authors":"Jinlong Ren, Muning Rong, Yunlin Xing, Ming Zheng, Xin Nie, Jiansheng FAN, Yufei Liu","doi":"10.3724/j.gyjzg23022008","DOIUrl":"https://doi.org/10.3724/j.gyjzg23022008","url":null,"abstract":": Micro vibration control is one of the most important goals in the construction of ultraprecise and large-scale scientific facilities. In order to meet the requirements for micro vibration control in High Energy Photo Source (HEPS), Beijing, a 1-meter-thick reinforced concrete slab with a 3-meter-thick concrete layer has been cast. The paper presented a field test of an artificial frequency sweep test from 1 to 100 Hz after the completion of the main structure in HEPS. Based on the analysis of the obtained vibration signals in the time domain and frequency domain, an evaluation of the micro vibration level and the micro vibration control capacity of the slab was conducted. The results indicated that under the vibrator’s excitation from 1 to 100 Hz, the mass concrete slab of experimental hall performed well in micro vibration control.","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"13 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139640866","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}
: As the most similar exoplanet in the solar system, Mars is very important in the perspective of strategic value and significance. With the completion of the three missions of “orbiting, landing and patrolling” of Mars at one time, the Martian base construction has become the next important goal to promote our deep space exploration process. Through the investigation of the existing literature on the environment and resource conditions of Mars, comparing them with those on the moon and the Earth, a series of unique problems to be solved in the construction of Mars are put forward. Based on the investigation of technologies suitable for Mars construction, including excavation construction, chemical vapor deposition forming, fused deposition forming, and Martian regolith bonding forming, etc., a new scheme of automatic construction of Martian base based on in-situ resources is proposed, called “China Dome”, which components include an inflatable bag, carbon fiber skeleton, sulfur concrete cladding and hatches. This provides a new way to build a Martian base
{"title":"A Novel Approach for Martian Base Construction Using In-Situ Resources","authors":"Jiacheng Zhao, Yuxuan Luo, Daobo Zhang, Charun Bao, Peng Feng","doi":"10.3724/j.gyjzg23092901","DOIUrl":"https://doi.org/10.3724/j.gyjzg23092901","url":null,"abstract":": As the most similar exoplanet in the solar system, Mars is very important in the perspective of strategic value and significance. With the completion of the three missions of “orbiting, landing and patrolling” of Mars at one time, the Martian base construction has become the next important goal to promote our deep space exploration process. Through the investigation of the existing literature on the environment and resource conditions of Mars, comparing them with those on the moon and the Earth, a series of unique problems to be solved in the construction of Mars are put forward. Based on the investigation of technologies suitable for Mars construction, including excavation construction, chemical vapor deposition forming, fused deposition forming, and Martian regolith bonding forming, etc., a new scheme of automatic construction of Martian base based on in-situ resources is proposed, called “China Dome”, which components include an inflatable bag, carbon fiber skeleton, sulfur concrete cladding and hatches. This provides a new way to build a Martian base","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140518599","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}
: Oil and gas energy is abundant in Arctic region, which has a great exploitation potential. Concrete gravity-based structures have a board future to be installed in the ocean due to its advantages of high degree of integration and exceptional durability. The calculation methods for ice load, wind load, wave load, ocean current load, foundation reaction, and temperature load were provided in the study based on an oil and gas exploration project in the Arctic region. For the load combinations of gravity-based platforms, standards in China Classification Society (CCS), International Organization for Standardization (ISO), Det Norske Veritas (DNV), American Petroleum Institute (API) and European Union (EN) were introduced to select load types. Then the load combination of the project was defined. Besides, the whole-process structural analysis for towage, installation, and on-site service was carried out by finite element method, verifying the reliability of the platform.
{"title":"Structural Analysis and Whole-Process Simulation of Ultra-Large ConcreteGravity-Based Structure in Arctic Ocean","authors":"Chongfeng Xie, Ninghui WANG, Peng Feng, Hongwei Lin, Guozhen Ding","doi":"10.3724/j.gyjzg23100822","DOIUrl":"https://doi.org/10.3724/j.gyjzg23100822","url":null,"abstract":": Oil and gas energy is abundant in Arctic region, which has a great exploitation potential. Concrete gravity-based structures have a board future to be installed in the ocean due to its advantages of high degree of integration and exceptional durability. The calculation methods for ice load, wind load, wave load, ocean current load, foundation reaction, and temperature load were provided in the study based on an oil and gas exploration project in the Arctic region. For the load combinations of gravity-based platforms, standards in China Classification Society (CCS), International Organization for Standardization (ISO), Det Norske Veritas (DNV), American Petroleum Institute (API) and European Union (EN) were introduced to select load types. Then the load combination of the project was defined. Besides, the whole-process structural analysis for towage, installation, and on-site service was carried out by finite element method, verifying the reliability of the platform.","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139640753","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 traditional stability design method for scaffolding structures is based on linear calculation results and the theory of effective length coefficients. The traditional method is accurate enough for conventional scaffolding structures, provided that the effective length coefficient of the compressed member can be correctly evaluated. However, a fine design method with higher calculation accuracy should be adopted for the design of ultra-high and large scaffold structures with complex loading conditions. An advanced design method for scaffolding based on direct analysis method was proposed in the paper. Firstly, a large number of geometric measurements and statistical analysis about the initial bending of scaffolding members were carried out, and an accurate data model for initial defect of scaffolding members was established. Secondly, an experimental research was conducted on the typical connection joints of the buckle type scaffold, and the semi-rigid characteristic of the connection with different loading cases were obtained, including bending in beams, compression or tension in beams and braces. Moreover, the research results including initial defect of scaffolding members and semi-rigid properties of scaffolding connection were imported into the nonlinear structure analysis tools NIDA. Finally, a real project with ultra-high and large disk-buckled scaffolding structure was introduced.
{"title":"A Fine Design Method for Disk-Buckled Scaffolding Structure Based on Direct Analysis","authors":"Wang Lijun, Wang Ming, Jinpeng Tan","doi":"10.3724/j.gyjzg23072810","DOIUrl":"https://doi.org/10.3724/j.gyjzg23072810","url":null,"abstract":": The traditional stability design method for scaffolding structures is based on linear calculation results and the theory of effective length coefficients. The traditional method is accurate enough for conventional scaffolding structures, provided that the effective length coefficient of the compressed member can be correctly evaluated. However, a fine design method with higher calculation accuracy should be adopted for the design of ultra-high and large scaffold structures with complex loading conditions. An advanced design method for scaffolding based on direct analysis method was proposed in the paper. Firstly, a large number of geometric measurements and statistical analysis about the initial bending of scaffolding members were carried out, and an accurate data model for initial defect of scaffolding members was established. Secondly, an experimental research was conducted on the typical connection joints of the buckle type scaffold, and the semi-rigid characteristic of the connection with different loading cases were obtained, including bending in beams, compression or tension in beams and braces. Moreover, the research results including initial defect of scaffolding members and semi-rigid properties of scaffolding connection were imported into the nonlinear structure analysis tools NIDA. Finally, a real project with ultra-high and large disk-buckled scaffolding structure was introduced.","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"229 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139640893","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}
Xinhu Liu, Zuanfeng Pan, Haipeng Zhang, Jinghong Tao
: 3D printing construction technology is a new type of digital construction technology that applies 3D printing technology to the construction field. It is an intelligent building manufacturing mode characterized by the deep integration of information integration technology and digital manufacturing technology. This building construction method has a series of advantages such as intelligence, personalization
:3D 打印建筑技术是将 3D 打印技术应用于建筑领域的一种新型数字建筑技术。它是一种以信息集成技术和数字化制造技术深度融合为特征的智能建筑制造模式。这种建筑施工方式具有智能化、个性化等一系列优势
{"title":"Influence of Printing Path and Bonding Surface Characteristics on Bearing Capacity of 3D Printed Concrete Beams","authors":"Xinhu Liu, Zuanfeng Pan, Haipeng Zhang, Jinghong Tao","doi":"10.3724/j.gyjzg21091409","DOIUrl":"https://doi.org/10.3724/j.gyjzg21091409","url":null,"abstract":": 3D printing construction technology is a new type of digital construction technology that applies 3D printing technology to the construction field. It is an intelligent building manufacturing mode characterized by the deep integration of information integration technology and digital manufacturing technology. This building construction method has a series of advantages such as intelligence, personalization","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"19 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140525568","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}
: Because of the significant characteristics of cementitious grouting materials (‘CGM’) include high fluidity, micro expansion, and high strength, it has been widely used in various engineering projects and showing a trend of continuous differentiation in properties. For the development and application of CGM, the development history has been summarized in stages firstly. For the second, the classification of CGM based on its characteristics of properties, application field, and the correlation between each other has been analyzed and summarized systematically. Typical application cases of CGM with different uses were introduced according to its classification by application field. Finally, by combing through the development situation of CGM standardization in China, the future of development and application of CGM is prospected, and several suggestions of research and engineering application were proposed.
{"title":"Review on Application of Cementitious Grouting Materials","authors":"Yudong Han, Yue Xie, Qingrui Yue, Wei Li, Bo Peng","doi":"10.3724/j.gyjzg23073008","DOIUrl":"https://doi.org/10.3724/j.gyjzg23073008","url":null,"abstract":": Because of the significant characteristics of cementitious grouting materials (‘CGM’) include high fluidity, micro expansion, and high strength, it has been widely used in various engineering projects and showing a trend of continuous differentiation in properties. For the development and application of CGM, the development history has been summarized in stages firstly. For the second, the classification of CGM based on its characteristics of properties, application field, and the correlation between each other has been analyzed and summarized systematically. Typical application cases of CGM with different uses were introduced according to its classification by application field. Finally, by combing through the development situation of CGM standardization in China, the future of development and application of CGM is prospected, and several suggestions of research and engineering application were proposed.","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"62 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139640863","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}
Chunsen Wang, Ruisong Li, Min Xing, Liangdong Zhuang, Xin Nie, Yan Zou
: With the development of urban rail transit and the deepening of integration of under-and above-ground urban space, the rail transit co-construction project has become a new direction of the public transportation-oriented development mode. Relying on the Dongguan Xiping Station project, a combined structural scheme was designed for the long-span building cover and conversion beam area, which could reduce the height of beams by 28%-33%, the dead weight by 49%-66%, and the cost by 7%-36%. The overall model of the steel reinforced concrete structure and the steel-concrete composite structure were established and the seismic performance analysis of the two structures under different earthquake was carried out by YJK and MIDAS Gen. The composite structure decreased the interlayer displacement angle under rarely occurred earthquake, which suggested that it showed a better seismic resistance while maintaining natural vibration characteristics similar to the steel reinforced concrete structure. It was notable that the bending-torsional coupling effect in the transformation beam area is significant, resulting in the torque reached up to 2 719.4 kN·m; and the stress of the long-span steel structure reached up to 207 MPa.
{"title":"Seismic Performance Analysis of Steel-Concrete Composite Structural System for Rail Transit Co-Construction Projects","authors":"Chunsen Wang, Ruisong Li, Min Xing, Liangdong Zhuang, Xin Nie, Yan Zou","doi":"10.3724/j.gyjzg23082210","DOIUrl":"https://doi.org/10.3724/j.gyjzg23082210","url":null,"abstract":": With the development of urban rail transit and the deepening of integration of under-and above-ground urban space, the rail transit co-construction project has become a new direction of the public transportation-oriented development mode. Relying on the Dongguan Xiping Station project, a combined structural scheme was designed for the long-span building cover and conversion beam area, which could reduce the height of beams by 28%-33%, the dead weight by 49%-66%, and the cost by 7%-36%. The overall model of the steel reinforced concrete structure and the steel-concrete composite structure were established and the seismic performance analysis of the two structures under different earthquake was carried out by YJK and MIDAS Gen. The composite structure decreased the interlayer displacement angle under rarely occurred earthquake, which suggested that it showed a better seismic resistance while maintaining natural vibration characteristics similar to the steel reinforced concrete structure. It was notable that the bending-torsional coupling effect in the transformation beam area is significant, resulting in the torque reached up to 2 719.4 kN·m; and the stress of the long-span steel structure reached up to 207 MPa.","PeriodicalId":516737,"journal":{"name":"Industrial Construction","volume":"124 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140521582","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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