新型装配式钢混组合梁柱节点受火温度场研究

引用文献:

江焕芝 ,潘杰 ,郭正兴, 宫长义. 新型装配式钢混组合梁柱节点受火温度场研究[J]. 建筑结构,2023,48(11):81-87.

JIANG Huanzhi PAN Jie GUO Zhengxing GONG Changyi. Research on temperature field of a new assembled steel-concrete composite beam-column joint under fire[J]. Building Structure,2023,48(11):81-87.

作者:江焕芝 ,潘杰 ,郭正兴, 宫长义
单位:青岛理工大学土木工程学院 东南大学土木工程学院 中亿丰建设集团股份有限公司
摘要:对一种新型装配式钢混组合梁柱节点开展了足尺火灾试验,对比分析了节点梁和节点柱不同截面不同测点的温度场。同时基于有限元软件ABAQUS进行了梁柱节点受火下温度场的模拟分析,分析结果与试验结果吻合良好,验证了模型的可靠性。研究结果表明,1)新型装配式钢混组合梁柱节点在火灾下的温度场分布呈外高内低的趋势,在受火1h后,试件梁柱截面表层50mm以内的混凝土最高温度基本在400℃左右,而截面中心处温度均在200℃以下,预测梁柱节点的承载能力下降有限;2)梁端钢接头的存在会使梁温度场发生重分布;3)火灾下梁柱节点核心区温度较低,是相对安全的。
关键词:装配式;钢混组合梁柱节点;火灾试验;温度场;有限元模拟;
作者简介:江焕芝,博士,讲师,主要从事装配式建筑结构设计和施工等相关研究,Email:jianghuanzhi@qut.edu.cn。
基金:国家重点研发计划(2016YFC0701703);国家自然科学基金(51678136);青岛理工大学(临沂)博士科研启动基金(20312001);青岛理工大学临沂校区自然科学重点培育科研项目资助(20304116);青岛理工大学临沂校区自然科学基金项目资助(20304123、2030404)。
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参考文献[1] 吴刚,冯德成.装配式混凝土框架节点基本性能研究进展[J].建筑结构学报,2018,39(2):1-16.
[2] 管东芝.梁端底筋锚入式预制梁柱连接节点抗震性能研究[D].南京:东南大学,2017.
[3] 郭正兴,杨森,管东芝,等.预制预应力梁构件和装配式组合框架结构:CN208668765U[P].2019-03-29.
[4] 倪路瑶.新型预制组合框架结构梁柱连接节点相关技术研究[D].南京:东南大学,2019.
[5] 陈锋,毛小勇.预制柱-叠合梁装配整体式框架边节点抗火性能研究[J].苏州科技大学学报(工程技术版),2019,32(4):39-43.
[6] 王仁杰,华建民,黄乐鹏.新型装配式混凝土框架节点抗火性能有限元分析[J].施工技术,2020,49(5):23-28.
[7] 顾为健,毛小勇.装配整体式框架节点抗火性能有限元分析[J].消防科学与技术,2018,37(6):723-728.
[8] 傅传国,王广勇,王玉镯.钢筋混凝土框架节点抗火性能试验研究及理论分析[J].东南大学学报(自然科学版),2010,40(4):822-828.
[9] 王换丽.装配整体式螺栓钢板箍连接框架柱抗火性能研究[D].西安:西安建筑科技大学,2017.
[10] 何涛.预制装配式叠合梁抗火性能研究[D].苏州:苏州科技大学,2017.
[11] 邓利斌,吴方伯,周绪红,等.预制混凝土简支叠合板耐火性能试验研究[J].建筑结构,2015,45(12):65-70.
[12] 李志杰,薛伟辰.预制混凝土无机保温夹心外墙体抗火性能试验研究[J].建筑结构学报,2015,36(1):59-67.
[13] 黄俊旗,戴建国,徐玉野,等.带有纤维增强复材拉结件的地聚物混凝土夹芯保温墙单面受火温度场研究[J].工业建筑,2019,49(9):184-189.
[14] European committee for standardization.Eurocode 4:design of composite and concrete structures,part 1.2:structural fire design:EN l994-1-2[S].Brussels:European Committee for Standardization,2005.
[15] 过镇海,时旭东.钢筋混凝土的高温性能及其计算[M].北京:清华大学出版社,2003.
[16] 陆洲导.钢筋混凝土梁对火灾反应的研究[D].上海:同济大学,1989.
[17] European convention for constructional steelwork (ECCS),technical committee 3-fire safety of steel structures,design manual on the European recommendations for the fire safety of steel structures[M].Brussels,1985.
[18] European committee for standardization.Eurocode 3:design of steel structures,part 1.2:structural fire design:EN l993-1-2[S].Brussels:European Committee for Standardization,2005.
[19] European committee for standardization.Eurocode 1:actions on structures,part 1-2:general actions-actions on structures exposed to fire:EN 1991-1-2[S].Brussels:European Committee for Standardization,2002.
Research on temperature field of a new assembled steel-concrete composite beam-column joint under fire
JIANG Huanzhi PAN Jie GUO Zhengxing GONG Changyi
(College of Civil Engineering,Qingdao University of Technology School of Civil Engineering,Southeast University Zhongyifeng Construction Group Co.,Ltd.)
Abstract: The fire experimental study was carried out on a full-scale new assembeled steel-concrete composite beam-column joint. The temperature field under fire of different sections and different measuring points of joint beam and joint column were compared and analyzed. Finite element analysis was also conducted based on the software ABAQUS to simulate the temperature field of beam-column joint under fire. The analysis results were in good agreement with the test results, which verifies the reliability of the model. The results show that: 1) the temperature field distribution of the new assembled steel-concrete composite beam-column joint under fire was gradually decreasing from the outside to the inside. After one hour of fire, the maximum temperature of the concrete within 50mm of the surface layer of the beam column section reached about 400℃, while the temperature of the concrete at the core of the section was below 200℃, which indicates that the decrease in bearing capacity of the joint was limited; 2) the existence of steel joint at the end of beam would make the temperature field redistribute; 3) the temperature in the core area of beam-column joint under fire was low and relatively safe.
Keywords: assembled; steel-concrete composite beem-column joint; fire test; temperature field; finite element simulation
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