超高性能玻璃砂混凝土-高强钢筋粘结滑移特性及其声发射参数表征

doi:10.13229/j.cnki.jdxbgxb.20230085

吉林大学学报(工学版) ›› 2023, Vol. 53 ›› Issue (6): 1686-1694.doi: 10.13229/j.cnki.jdxbgxb.20230085

• 交通运输工程·土木工程 • 上一篇

超高性能玻璃砂混凝土-高强钢筋粘结滑移特性及其声发射参数表征

毛亚娜^1,²(),刘世忠¹,杏剑³,杨华³,焦峪波³()

^1.兰州交通大学土木工程学院，兰州 730070
^2.甘肃省公路航空旅游投资集团有限公司，兰州 730030
^3.北京工业大学城市与工程安全减灾教育部重点实验室，北京 100124

收稿日期:2023-01-31 出版日期:2023-06-01 发布日期:2023-07-23
通讯作者: 焦峪波 E-mail:361553870@qq.com;jiaoyb@bjut.edu.cn
作者简介:毛亚娜（1986-），男，高级工程师，博士研究生.研究方向：桥梁结构计算方法.E-mail：361553870@qq.com
基金资助:
国家自然科学基金项目(52178266);北京市属高校青年拔尖人才培育计划项目(CIT&TCD201904027)

Bond⁃slip characterization between ultra⁃high performance glass sand concrete and high⁃strength reinforcement based on acoustic emission parameters

Ya-na MAO^1,²(),Shi-zhong LIU¹,Jian XING³,Hua YANG³,Yu-bo JIAO³()

^1.School of Civil Engineering，Lanzhou Jiaotong University，Lanzhou 730070，China
^2.Gansu Province Highway Aviation Tourism Investment Group Co. ，Ltd. ，Lanzhou 730030，China
^3.Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education，Beijing University of Technology，Beijing 100124，China

Received:2023-01-31 Online:2023-06-01 Published:2023-07-23
Contact: Yu-bo JIAO E-mail:361553870@qq.com;jiaoyb@bjut.edu.cn

摘要/Abstract

摘要：

为研究超高性能玻璃砂混凝土（UHPGC）与HRB600高强钢筋的粘结性能，分析了水胶比（0.17、0.19、0.21）、钢纤维体积掺量（1%、2%、3%）和玻璃砂替换率（0%、50%、100%）对UHPGC工作及力学性能的影响规律。通过中心拉拔试验并结合声发射实时监测明确了UHPGC-HRB600高强钢筋粘结性能变化规律。结果表明：掺入玻璃砂能提高UHPGC的抗压强度，其最佳替换度为50%；粘结强度与水胶比和钢纤维掺量呈正相关关系，且随着玻璃砂替换度的增大呈先增长后减小的规律；UHPGC和HRB600粘结滑移破坏形式主要分为劈裂破坏和劈拉破坏两种；声发射参数呈现良好的粘结滑移表征能力。

关键词: 桥梁与隧道工程, 超高性能玻璃砂混凝土, 高强钢筋, 粘结滑移特性, 声发射监测

Abstract:

In order to investigate the bonding performance between ultra-high performance glass sand concrete （UHPGC） and HRB600 high-strength reinforcement， the influences of water-cement ratio （0.17， 0.19， 0.21）， steel fiber volume fraction （1%， 2%， 3%） and glass sand replacement ratio （0%， 50%， 100%） on the working and mechanical properties of UHPGC were analyzed. The variations of bonding performance between UHPGC-HRB600 were clarified based on pull-out test and acoustic emission monitoring. The results reveal that the addition of glass sand can improve the compressive strength of UHPGC， and corresponding optimum replacement ratio is 50%. The bond strength is positively correlated with the water-cement ratio and the amount of steel fiber， while it presents first increase and then decrease with the increase of the replacement ratio of glass sand. The bond-slip failure between UHPGC and HRB600 can be mainly divided into two types： splitting failure and shear pullout failure. The acoustic emission parameters exhibit favorable bond-slip characterization ability.

Key words: bridge and tunnel engineering, ultra-high performance glass sand concrete, high-strength reinforcement, bond-slip performance, acoustic emission monitoring

中图分类号:

U444

毛亚娜,刘世忠,杏剑,杨华,焦峪波. 超高性能玻璃砂混凝土-高强钢筋粘结滑移特性及其声发射参数表征[J]. 吉林大学学报(工学版), 2023, 53(6): 1686-1694.

Ya-na MAO,Shi-zhong LIU,Jian XING,Hua YANG,Yu-bo JIAO. Bond⁃slip characterization between ultra⁃high performance glass sand concrete and high⁃strength reinforcement based on acoustic emission parameters[J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(6): 1686-1694.

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参考文献 12

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化学组成	石英砂	玻璃砂	硅灰	石英粉	水泥
SiO₂	99.43	71.10	98.86	99.20	22.80
Fe₂O₃	0.0255	0.51	0.14	0.01	4.43
Al₂O₃	0.18	2.15	0.12	0.10	4.01
CaO	0.11	11.10	0.57	0.21	65.32
MgO	0.01	1.30	0.20	0.17	2.07
Na₂O	-	14.07	0.35	0.11	0.07
K₂O	0.03	0.28	0.21	0.81	0.56

物理特性	石英砂	玻璃砂
堆积密度/（kg·m^-3）	1536.31	1579.62
平均粒径/μm	300	300
最大粒径/μm	600	600
压碎值/%	3.29	5.28

组号	材料组成
组号	水泥	硅灰	石英砂	玻璃砂	石英粉	钢纤维	水	减水剂
1	850	195.5	467.5	467.5	331.5	148.75	161.5	42.5
2	850	195.5	935	0	331.5	223.55	161.5	42.5
3	850	195.5	467.5	467.5	331.5	148.75	161.5	42.5
4	850	195.5	0	0	331.5	148.75	178.5	42.5
5	850	195.5	935	0	331.5	148.75	178.5	42.5
6	850	195.5	467.5	467.5	331.5	223.55	178.5	42.5
7	850	195.5	467.5	467.5	331.5	223.55	144.5	42.5
8	850	195.5	935	0	331.5	74.8	161.5	42.5
9	850	195.5	467.5	467.5	331.5	74.8	178.5	42.5
10	850	195.5	935	0	331.5	148.75	144.5	42.5
11	850	195.5	467.5	467.5	331.5	148.75	161.5	42.5
12	850	195.5	467.5	467.5	331.5	148.75	161.5	42.5
13	850	195.5	467.5	467.5	331.5	148.75	161.5	42.5
14	850	195.5	467.5	467.5	331.5	74.8	144.5	42.5
15	850	195.5	0	935	331.5	74.8	161.5	42.5
16	850	195.5	0	935	331.5	223.55	161.5	42.5
17	850	195.5	0	935	331.5	148.75	144.5	42.5

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超高性能玻璃砂混凝土-高强钢筋粘结滑移特性及其声发射参数表征

Bond⁃slip characterization between ultra⁃high performance glass sand concrete and high⁃strength reinforcement based on acoustic emission parameters

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组别	水胶比	钢纤维掺量/%	替换率/%	滑移量/mm	破坏模式
1	0.17	2	0	8	劈拉破坏
2	0.17	3	50	12.2	劈拉破坏
3	0.17	1	50	6.4	劈拉破坏
4	0.17	2	100	7.2	劈拉破坏
5	0.19	1	100	0.55	劈裂破坏
6	0.19	3	0	13.4	劈拉破坏
7	0.19	3	100	8.8	劈拉破坏
8	0.19	1	0	0.22	劈裂破坏
9	0.21	2	0	0.39	劈裂破坏
10	0.21	2	100	0.442	劈裂破坏
11	0.21	1	50	0.15	劈裂破坏
12	0.21	3	50	3.6	劈拉破坏
13	0.19	2	50	6.3	劈拉破坏