|本期目录/Table of Contents|

[1]陈海彬,周建超,王棒棒.火灾后套筒灌浆料力学性能试验研究*[J].中国安全生产科学技术,2022,18(2):145-151.[doi:10.11731/j.issn.1673-193x.2022.02.022]
 CHEN Haibin,ZHOU Jianchao,WANG Bangbang.Experimental study on mechanical properties of sleeve grouting material after fire[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(2):145-151.[doi:10.11731/j.issn.1673-193x.2022.02.022]
点击复制

火灾后套筒灌浆料力学性能试验研究*
分享到:

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
18
期数:
2022年2期
页码:
145-151
栏目:
职业安全卫生管理与技术
出版日期:
2022-02-28

文章信息/Info

Title:
Experimental study on mechanical properties of sleeve grouting material after fire
文章编号:
1673-193X(2022)-02-0145-07
作者:
陈海彬周建超王棒棒
(华北理工大学 河北省地震工程研究中心,河北 唐山 063021)
Author(s):
CHEN Haibin ZHOU Jianchao WANG Bangbang
(Earthquake Engineering Research Center of Hebei Province,North China University of Science and Technology,Tangshan Hebei 063021,China)
关键词:
套筒灌浆料强度受火时间静置时间冷却方式抗折强度抗压强度
Keywords:
strength of sleeve grouting material fire duration standing time cooling method flexural strength compressive strength
分类号:
X932
DOI:
10.11731/j.issn.1673-193x.2022.02.022
文献标志码:
A
摘要:
为研究火灾对套筒灌浆料力学性能的影响,设计不同受火时间(60,90 min),不同静置时间(1,14 d)以及不同冷却方式(自然冷却、喷水冷却)试验,分析不同工况下的套筒灌浆料的抗折强度和抗压强度。结果表明:随着受火时间的增加,套筒灌浆料的抗折、抗压强度均逐渐降低,自然冷却后抗折强度残余率分别为11.3%、9.1%,抗压强度残余率分别为48.4%、25.8%,抗折强度降幅更大;随着静置时间的增加,套筒灌浆料抗折强度逐渐降低,在自然冷却工况下抗压强度降低,降幅均为5.5%,而在喷水冷却工况下则升高,增幅分别为11.4%和7.3%;受火时间、静置时间以及冷却方式对套筒灌浆料抗折、抗压强度均产生不利影响,其中受火时间影响最大。试验结果可为火灾后装配式混凝土结构灌浆套筒连接节点的鉴定评估与加固设计提供依据。
Abstract:
In order to study the influence of fire on the mechanical properties of sleeve grouting material,the tests with different fire durations (60 min,90 min),different standing time (1 d,14 d) and different cooling methods (natural cooling,water spray cooling) were designed to analyze the flexural strength and compressive strength of sleeve grouting material under different working conditions.The results showed that with the increase of fire duration,both the flexural strength and compressive strength of sleeve grouting material decreased gradually.After the natural cooling,the residual rate of flexural strength was 11.3% and 9.1% respectively,and the residual rate of compressive strength was 48.4% and 25.8% respectively,with a greater decline in flexural strength.With the increase of standing time,the flexural strength of sleeve grouting material decreased gradually,and the compressive strength decreased by 5.5% under the natural cooling condition,while it increased by 11.4% and 7.3% respectively under the water spray cooling condition.All the fire duration,standing time and cooling method had adverse influence on the flexural strength and compressive strength of sleeve grouting material,and the fire duration had the greatest influence.The test results can provide the basis for the appraisal evaluation and reinforcement design on the grouting sleeve joint of prefabricated concrete structure after fire.

参考文献/References:

[1]赵媛媛,蒋首超.灌浆套管节点技术研究概况[J].工业建筑,2009,39(S1):514-517.ZHAO Yuanyuan,JIANG Shouchao.General situation of grouting casing joint technology [J].Industrial Architecture,2009,39 (S1):514-517.
[2]曾伟.装配式建筑用高性能套筒灌浆料研究[D].沈阳:沈阳建筑大学,2016.
[3]夏春蕾,杨思忠,李世元.装配式建筑套筒灌浆料研究进展[J].市政技术,2018,36(3):198-201.XIA Chunlei,YANG Sizhong,LI Shiyuan.Research progress of sleeve grouting materials for assembly building [J].Municipal Technology,2018,36(3):198-201.
[4]李桂燕,刘凤东,王冬梅,等.装配式建筑用套筒灌浆材料的研究及应用现状[J].天津建设科技,2019,29(S1):83-85.LI Guiyan,LIU Fengdong,WANG Dongmei,et al.Research and application status of sleeve grouting materials for prefabricated buildings [J].Tianjin Construction Technology,2019,29 (S1):83-85.
[5]张永强.装配式建筑套筒灌浆质量问题研究进展[J].江苏建筑,2018(S1):80-81.ZHANG Yongqiang.Research progress on sleeve grouting quality of prefabricated buildings [J].Jiangsu Construction,2018(S1):80-81.
[6]LI Q T,LIU L J,HUANG Z H,et al.Degradation of the elastic modulus of cement-based grouting material with early ages after fire[J].Construction and Building Materials,2018,187:510-518.
[7]LI Q T,LIU L J,HUANG Z H,et al.Residual compressive strength of cement-based grouting material with early ages after fire[J].Construction and Building Materials,2017,138:316-325.
[8]袁广林,何旭,李庆涛,等.高温后水泥基灌浆料低周重复荷载作用下的受力性能[J].中国矿业大学学报,2014,43(2):203-207.Yuan Guanglin,HE Xu,Li Qingtao,et al.Mechanical performance of cement-based grout under low cycle repeated load after high temperature[J].Journal of China University of Mining and Technology,2014,43 (2):203-207.
[9]郭亚红,徐国强,张薇,等.高温喷水冷却后水泥基灌浆料力学性能研究[J].华北理工大学学报(自然科学版),2021,43(2):67-71.GUO Yahong,XU Guoqiang,ZHANG Wei,et al.Study on mechanical properties of cement based grouting materials after high temperature water spraying cooling [J].Journal of north China University of Technology (Natural science edition),2021,43(2):67-71.
[10]SUN C Z,ZHANG Q,ZHAO T F,et al.Experimental study on the stress-temperature curve of the super high early strength grouting material at elevated temperature[J].Applied Mechanics and Materials,2014,3489:1521-1525.
[11]SHI M S,WANG F,LUO J.Compressive strength of polymer grouting material at different temperatures[J].Journal of Wuhan University of Technology-mater.Sci.Ed.,2010,25(6):962-965.
[12]邓曦.钢筋半套筒灌浆连接在高温下及高温后的力学性能研究[D].长沙:湖南大学,2018.
[13]金庆波,孙彬,张晋峰,等.钢筋连接用套筒灌浆料耐火性能试验研究[J].建筑结构,2020,50(22):62-66.JIN Qingbo,SUN Bin,ZHANG Jinfeng,et al.Experimental study on fire resistance of sleeve grouting material for steel bar connection [J].Building Structure,2020,50(22):62-66.
[14]叶显,吴文选,周壮,等.玄武岩纤维对高强灌浆料耐高温性能的影响[J].粉煤灰综合利用,2020,34(1):71-73,84.YE Xian,WU Wenxuan,ZHOU Zhuang,et al.Effect of basalt fiber on high temperature resistance of high strength grouting material [J].Comprehensive Utilization of Fly Ash,2020,34(1):71-73,84.
[15]陈敬,金庆波,赵海红,等.高温环境下套筒灌浆料性能试验研究[J].江西建材,2019(9):20-22.CHEN Jing,JIN Qingbo,ZHAO Haihong,et al.Experimental study on properties of sleeve grouting material under high temperature [J].Jiangxi Building Materials,2019(9):20-22.
[16]袁广林,李青,李庆涛,等.高性能水泥基灌浆料高温后抗压强度退化规律[J].建筑材料学报,2014,17(3):470-474.YUAN Guanglin,LI Qing,LI Qingtao,et al.Degradation law of compressive strength of high performance cement based grouting materials after high temperature [J].Journal of Building Materials,2014,17(3):470-474.
[17]王志丹,王团结.碳纤维混凝土的耐火性能试验测试与分析[J].中国安全生产科学技术,2020,16(11):77-81.WANG Zhidan,WANG Tuanjie.Experimental test and Analysis on fire resistance of carbon fiber reinforced concrete [J] Journal of Safety Science and Technology,2020,16(11):77-81.
[18]住房和城乡建设部工程质量标准化技术委员会.钢筋连接用套筒灌浆:JG/T 408—2019 [S].北京:中国建筑工业出版社,2019.
[19]全国水泥标准化技术委员会.水泥胶砂强度检验方法(ISO)法:GB/T 17671—1999 [S].北京:中国标准出版社,1999.

相似文献/References:

备注/Memo

备注/Memo:
收稿日期: 2021-05-25
* 基金项目: 国家自然科学基金项目(51478162,51608196);河北省自然基金项目(E2014209099,E2020209086)
作者简介: 陈海彬,博士,教授,主要研究方向为建筑结构抗火、工程抗震以及混凝土无损检测。
更新日期/Last Update: 2022-03-18