[1]杨志年,毛震,周云龙,等.火灾后铁尾矿砂混凝土梁抗弯性能试验研究[J].西安建筑科技大学学报(自然科学版),2024,56(02):220-228.[doi:10.15986/j.1006-7930.2024.02.008]
　YANG Zhinian,MAO Zhen,ZHOU Yunlong,et al.Experimental study on flexural performance of iron tailings concrete beams after fire[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2024,56(02):220-228.[doi:10.15986/j.1006-7930.2024.02.008]
点击复制

火灾后铁尾矿砂混凝土梁抗弯性能试验研究()
分享到：

西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
56
期数:
2024年02期
页码:
220-228
栏目:
出版日期:
2024-04-28

文章信息/Info

Title:
Experimental study on flexural performance of iron tailings concrete beams after fire
文章编号:
1006-7930(2024)02-0220-09
作者:
杨志年1; 2; 毛震1; 周云龙1; 3; 雷翔宇1
（1.华北理工大学 建筑工程学院，河北 唐山 063210；2．河北省地震工程与防灾重点实验室 河北 唐山 063210；3．河北省建筑结构绿色建造技术创新中心，河北 唐山 063210）
Author(s):
YANG Zhinian1; 2;  MAO Zhen1;  ZHOU Yunlong1; 3;  LEI Xiangyu1
(1．College of Civil and Architectural Engineering，North China University of Science and Technology，Hebei Tangshan 063210，China; 2．Hebei Key Laboratory of Earthquake Engineering and Disaster Prevention, Hebei Tangshan 063210，China；3．Hebei Technology Innovation Center of Green Construction for Building Structures，Hebei Tangshan 063210，China)
关键词:
铁尾矿砂混凝土; 简支梁; 火灾后; 抗弯性能; 平截面假定
Keywords:
iron tailings sand concrete;  simple supported beam;  after fire;  flexural behavior;  plane section assumption
分类号:
TU37；X932
DOI:
10.15986/j.1006-7930.2024.02.008
文献标志码:
A
摘要:
为研究铁尾矿砂全部替代天然砂对混凝土梁火灾后抗弯性能的影响，对3根受火45 min和3根非受火混凝土梁进行了静载试验.对比了受火过程中梁内混凝土和钢筋温度分布、梁跨中挠度以及火灾后静载试验荷载-挠度曲线、残余抗弯承载力、破坏形态，验证了平截面假定，分析了铁尾矿砂全部替代天然砂和不同铁尾矿砂混凝土强度对钢筋混凝土梁火灾后抗弯性能的影响.结果表明：铁尾矿砂混凝土梁与天然砂混凝土梁受火过程中混凝土和钢筋温度、跨中挠度无明显差异，受火45 min后满足平截面假定；铁尾矿砂混凝土梁的火灾后残余抗弯承载力与天然砂混凝土梁无明显差异，但破坏时跨中挠度显著增加；不同铁尾矿砂混凝土强度（C30、C40）对梁火灾后抗弯承载力影响不大.
Abstract:
In order to study the effect of replacing natural sand with iron tailings sand on the flexural performance of concrete beams after fire, static load tests were carried out on three concrete beams exposed to fire for 45 min and three concrete beamsnon-exposed to fire. The temperature distribution of concrete and reinforcement in the beam during fire, the mid span deflection of the beam, the load deflection curve of standard post fire static load test, the residual bending capacity, and the failure mode were compared.The plane section assumption was verified, and the influences of all iron tailings sand replacing natural sandand thestrength of different iron tailings sand concreteon the bending resistance of reinforced concrete beams after fire were analyzed.The results show that there is no significant difference in the temperature fieldof concrete and steel bars and mid span deflectionbetween iron tailings sand concrete beam and natural sand concrete beam under fire,and both meet the plane section assumption after 45 minutes of fire.The residual flexural capacity of iron tailings sand concrete beams after fire is not significantly different from that of natural sand concrete beams, but the midspan deflection increases significantly during failure.The strength C30 or C40 of concrete with different iron tailings has little effect on the flexural capacity of beams after fire.

参考文献/References:

［1］王建超, 宋洪缘, 马光卓. 火灾后混凝土结构建筑应急加固方案优选研究［J］. 西安建筑科技大学学报(自然科学版), 2022, 54(3):331-337.

WANG Jianchao, SONG Hongyuan, MA Guangzhuo. Research on optimum selection of emergency reinforcement scheme for concrete structures after fire［J］. J. of Xi′an Univ. of Arch. & Tech. (Natural Science Edition), 2022, 54(3): 331-337.
［2］KHALIQ W, KHAN H A. High temperature material properties of calcium aluminate cement concrete［J］. Construction and Building Materials, 2015 (94): 475-487.
［3］徐玉野, 吴波, 王荣辉, 等. 高温后钢筋混凝土梁剩余承载性能试验研究［J］.建筑结构学报, 2013,8:20-29.
XU Yuye, WU Bo, WANG Ronghui, et al. Experimental study on residual performance of reinforced concrete beams after fire［J］. Journal of Building Structures, 2013, 8:20-29.
［4］CHOI E G, SHIN Y S, KIM H S. Structural damage evaluation of reinforced concrete beams exposed to high temperatures［J］. Journal of Fire Protection Engineering, 2013, 23 (2): 135-151.
［5］吕晓, 赵瑞丽, 舒赣平, 等. 中空夹层圆钢管超高强混凝土短柱火灾后承载性能试验研究［J］. 西安建筑科技大学学报(自然科学版), 2022,54(4):543-550.
Lü Xiao, ZHAO Ruili, SHU Ganping, et al. Experimental study on post-fire bearing performance of ultrahigh strength concrete filled double-skin circular steel tubular column［J］. J. of Xi′an Univ. of Arch. & Tech. (Natural Science Edition), 2022,54(4):543-550.
［6］许文龙, 周戟, 刘朝峰, 等. 考虑爆裂影响的钢筋混凝土梁火灾温度场数值分析［J］. 中国安全生产科学技术, 2019, 15(9):33-38.
XU Wenlong, ZHOU Ji, LIU Chaofeng, et al. Numerical analysis on temperature field of reinforced concrete beam under fire considering spalling effect［J］. Journal of Safety Science and Technology, 2019, 15(9):33-38.
［7］HASSAN A, KHAIRALLAH F, ELSAYED H, et al. Behaviour of concrete beams reinforced using basalt and steel bars under fire exposure［J］. Engineering Structure, 2021, 238: 112251.
［8］杨志年, 齐建全, 段开达, 等. 钢筋混凝土梁高温下抗剪性能的试验研究［J］. 工业建筑, 2020, 50(10):57-62.
YANG Zhinian, QI Jianquan, DUAN Kaida, et al. Experimental study on shear properties of RC beams under high temperature［J］. Industrial Construction, 2020, 50(10): 57-62.
［9］杨志年, 齐建全, 段开达, 等. 钢筋混凝土梁火灾下抗剪性能的试验研究［J］. 广西大学学报(自然科学版), 2019, 44(6): 1520-1530.
YANG Zhinian, QI Jianquan, DUAN Kaida, et al. Experimental research on shear behavior of reinforced concrete beams in fire［J］. Journal of Guangxi University (Nat. Sci. Ed.), 2019, 44(6): 1520-1530.
［10］杨志年, 陈明远, 王兴国, 等. 高温下钢筋混凝土框架梁抗剪性能研究［J］. 广西大学学报(自然科学版), 2016, 41(4): 1054-1060.
YANG Zhinian, CHEN Mingyuan, WANG Xingguo, et al. Ｒesearch on shear behavior of reinforced concrete frame beams at high temperature［J］. Journal of Guangxi University (Nat. Sci. Ed.), 2016, 41(4): 1054-1060.
［11］PRAKASH A, SWAMINATHEN A, RAMU A, et al. Assessment of strength and durability parameters for concrete with partial replacement of coarse aggregates by iron slag and glass powder as an additive［J］. IOP Conference Series Materials Science and Engineering, 2021, 1126: 012082.
［12］KARTHIKEYAN B, KATHYAYINI R, KUMAR VA, et al. Effect of dumped iron ore tailing waste as fine aggregate with steel and basalt fibre in improving the performance of concrete［J］. Material Today Proceeding. 2021, 46: 7624-7632.
［13］陈虎, 沈卫国, 单来, 等. 国内外铁尾矿排放及综合利用状况探讨［J］. 混凝土, 2012(2): 88-92.
CHEN Hu, SHEN Weiguo, SHAN Lai, et al. Situation of discharge and comprehensive utilization of iron tailings domestic and abroad［J］. Concrete, 2012(2): 88-92.
［14］GANESH P G, HYUN J H, KIM Y Y. Effects of foundry sand as a fine aggregate in concrete production［J］. Construction and Building Materials, 2014 (70):514-521.
［15］蔡基伟, 张少波, 侯桂香, 等. 铁尾矿砂对混凝土工作性和强度的影响［J］.武汉理工大学学报, 2009, 31(7): 104-107.
CAI Jiwei, ZHANG Shaobo, HOU Guixiang, et al. Effects of ferrous mill tailings as aggreagtes on workability and strength of concrete［J］. Journal of Wuhan University of Technology, 2009, 31(7): 104-107.
［16］刘文博, 姚华彦, 王静峰, 等. 铁尾矿资源化综合利用现状［J］. 材料导报, 2020,34(S1): 268-270.
LIU WENBO, YAO HUAYAN, WANG Jingfeng, et al. Current situation of comprehensive utilization of lron tailings［J］. Materials Report, 2020, 34(S1): 268-270.
［17］管品武, 孟会英, 邝周飞. 掺尾矿砂混凝土梁受弯性能试验研究［J］. 新型建筑材料, 2016, 43(1): 18-20,29.
GUAN Pinwu, MENG Huiying, KUANG Zhoufei. Experimental research on the flexural performance of concrete beams with mine tailings sand［J］. New Building Materials, 2016, 43(1): 18-20,29.
［18］张龙生. 铁尾矿砂混凝土简支梁抗弯刚度和裂缝试验研究［D］. 成都:西南交通大学, 2015.
ZHANG Longsheng. Research on bending stiffness and crack of simplysupported beam of iron tailing concrete［D］. Chengdu: Southwest Jiaotong University, 2015.
［19］王光琦. 铁尾矿砂钢筋混凝土梁抗弯性能试验研究［D］. 唐山:华北理工大学, 2015.
WANG Guangqi. Experimental research on flexural behavior of reinforced concrete iron tailings［D］. Tangshan: Northwest University of Science and Technology, 2015.
［20］马卫华, 孟庆娟, 康洪震, 等. 铁尾矿砂混凝土梁受剪性能试验研究［J］. 建筑结构学报, 2021, 42(S1):322-329.
MA Weihua, MENG Qingjuan, KANG Hongzhen, et al. Experimental study on shear performance of iron tailings concrete beams［J］. Journal of Building Structures, 2021, 42(S1):322-329.
［21］李壮. 高温后铁尾矿砂混凝土力学性能试验研究［D］. 广州:华南理工大学, 2020.
LI Zhuang. Experiment study on mechanical properties of concrete with iron tailings after high temperature ［D］. Guangzhou: South China University of Technology, 2020.
［22］CHEN J H, YUAN Y X, ZHU Q, et al.Hightemperature resistance of high-strength concrete with iron tailing sand［J］. Journal of Building Engineering, 2022:63(1):105544.
［23］ZHU Q, Yuan Y X, Chen J H, et al. Research on the high-temperature resistance of recycled aggregate concrete with iron tailing sand［J］.Construction and Building Materials, 2022,327:126889.
［24］ZHOU Y L, YANG Z N, YOU Z G, et al. Experimental study on fire resistance of concrete beams made with iron tailings sand［J］. Buildings, 2022, 12(11):1816.
［25］中华人民共和国住房和城乡建设部.混凝土结构设计规范:GB/T 50010—2010.（2015版）［S］. 北京:中国建筑工业出版社, 2015.
Ministry of Housing and Urban-Rural Developmcnt of People′s Republic of China. Code for design of concrete structures: GB/T 50010—2010. (2015)［S］. Beijing: China Architecture & Building Press, 2015.
［26］中华人民共和国住房和城乡建设部.混凝土结构试验方法标准:GB/T 50152—2012. ［S］. 北京:中国建筑工业出版社, 2012.
Ministry of Housing and Urban-Rural Developmcnt of People′s Republic of China. Standard for test method of concrete structures:GB/T 50152—2012. ［S］. Beijing: China Architecture & Building Press, 2012.

相似文献/References:

[1]杨文星,史庆轩,张成中.高强箍筋高强混凝土梁抗剪试验研究[J].西安建筑科技大学学报(自然科学版),2012,44(02):198.[doi:10.15986/j.1006-7930.2012.02.009]
　YANG Wen-xing,SHI Qing-xuan,ZHANG Cheng-zhong.Experimental study on shear behavior of reinforced concrete beam with high strength stirrup[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2012,44(02):198.[doi:10.15986/j.1006-7930.2012.02.009]
[2]尚 鑫,徐 岳,任更锋.受损简支梁固有频率变化规律研究[J].西安建筑科技大学学报(自然科学版),2013,45(05):640.[doi:10.15986/j.1006-7930.2013.05.006]
　SHANG Xin,XU Yue,REN Geng-feng.Research on natural frequency characteristics of damaged simply supported beam[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2013,45(02):640.[doi:10.15986/j.1006-7930.2013.05.006]
[3]王秋维,张月坤,康洪震,等.变形钢筋与铁尾矿砂混凝土粘结性能试验研究[J].西安建筑科技大学学报(自然科学版),2015,47(06):830.[doi:10.15986/j.1006-7930.2015.06.012]
　WANG Qiuwei,ZHANG Yuekun,KANG Hongzhen,et al.Experimental research on bond behavior between deformed bars and ferrous mill tailing concrete[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2015,47(02):830.[doi:10.15986/j.1006-7930.2015.06.012]

备注/Memo

备注/Memo:
收稿日期:2022-11-08 修回日期:2024-03-19
基金项目:河北省自然科学基金项目（E2021209112）；河北省高等学校科学研究重点项目（ZD2021085）；唐山市科技局应用基础研究项目（21130222C）
第一作者:杨志年（1983—），男，博士，教授，主要从事建筑结构抗火方向的研究．E-mail:yangzhinian1983@163.com
通信作者:周云龙（1989—），男，博士生，副教授，主要从事建筑结构抗火方向的研究．E-mail:ncstzyl@163.com
更新日期/Last Update: 2024-06-24