{"title":"渣基地聚合物混凝土外梁柱节点火后性能研究","authors":"B. Roy, Arshad Hussain Choudhury, A. Laskar","doi":"10.1680/jstbu.21.00183","DOIUrl":null,"url":null,"abstract":"Post-fire performance of slag based geopolymer in structures under cyclic loading is yet to be reported and condition of rebar inside such structures remains unexplored till date. In the present work cyclic test was conducted on exterior beam-column joint made with slag based geopolymer after exposing the specimens to natural fire. Further, mechanical properties of reinforcement embedded in fire exposed specimen were also determined and analysed. Cyclic test results indicated that deterioration of geopolymer and rebar alter the failure pattern of fire exposed specimen from desired beam end hinging to joint shear failure. Peak load, stiffness, ductility and energy dissipation reduced significantly in fire exposed specimen compared with unheated control specimen.","PeriodicalId":54570,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Structures and Buildings","volume":null,"pages":null},"PeriodicalIF":1.2000,"publicationDate":"2022-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Post-fire performance of exterior beam-column joint made with slag-based geopolymer concrete\",\"authors\":\"B. Roy, Arshad Hussain Choudhury, A. Laskar\",\"doi\":\"10.1680/jstbu.21.00183\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Post-fire performance of slag based geopolymer in structures under cyclic loading is yet to be reported and condition of rebar inside such structures remains unexplored till date. In the present work cyclic test was conducted on exterior beam-column joint made with slag based geopolymer after exposing the specimens to natural fire. Further, mechanical properties of reinforcement embedded in fire exposed specimen were also determined and analysed. Cyclic test results indicated that deterioration of geopolymer and rebar alter the failure pattern of fire exposed specimen from desired beam end hinging to joint shear failure. Peak load, stiffness, ductility and energy dissipation reduced significantly in fire exposed specimen compared with unheated control specimen.\",\"PeriodicalId\":54570,\"journal\":{\"name\":\"Proceedings of the Institution of Civil Engineers-Structures and Buildings\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.2000,\"publicationDate\":\"2022-02-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the Institution of Civil Engineers-Structures and Buildings\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1680/jstbu.21.00183\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CONSTRUCTION & BUILDING TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the Institution of Civil Engineers-Structures and Buildings","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1680/jstbu.21.00183","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}
Post-fire performance of exterior beam-column joint made with slag-based geopolymer concrete
Post-fire performance of slag based geopolymer in structures under cyclic loading is yet to be reported and condition of rebar inside such structures remains unexplored till date. In the present work cyclic test was conducted on exterior beam-column joint made with slag based geopolymer after exposing the specimens to natural fire. Further, mechanical properties of reinforcement embedded in fire exposed specimen were also determined and analysed. Cyclic test results indicated that deterioration of geopolymer and rebar alter the failure pattern of fire exposed specimen from desired beam end hinging to joint shear failure. Peak load, stiffness, ductility and energy dissipation reduced significantly in fire exposed specimen compared with unheated control specimen.
期刊介绍：
Structures and Buildings publishes peer-reviewed papers on the design and construction of civil engineering structures and the applied research associated with such activities. Topics include the design, strength, durability and behaviour of structural components and systems.
Topics covered: energy conservation, people movement within and around buildings, strength and durability of steel and concrete structural components, and the behaviour of building and bridge components and systems
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