砖砌体墙后嵌钢筋-嵌缝砂浆界面黏结强度规律

doi:10.13229/j.cnki.jdxbgxb.20230282

Abstract

Abstract:

The bond strength at the interface between post-embedded reinforcement and caulking mortar is a crucial factor in determining the seismic strengthening efficacy of unreinforced masonry. To investigate this， 33 brick masonry specimens were constructed and reinforced with plain and deformed steel rebars， as well as cement mortar of various strengths. The bond performance of the strengthened specimens was investigated by means of a self-developed pull-out testing device. By analyzing the bond failure mode， bond slip curve characteristics， and bond strength， the bond behavior influencing by the likely impact of factors such as caulking mortar strength， reinforcement diameter， bond length， and reinforcement type on bond strength was evaluated， and a predicting formula of the ultimate bond strength considering various influencing factors was proposed while the predicted bond strength is also analyzed in an energy perspective. The test results showed that the strength of caulking mortar， bond length， and reinforcement type have significantly impact on the bond strength， while changes in reinforcement diameter have little effect. Specifically， the bond strength of deformed rebars has generally higher effect than that of the plain rebars under the same conditions. The bond strength of reinforcement increases with the strength grade of caulking mortar and decreases as the bond length increases. The rule of thumb for the variation of interfacial bond failure energy with the strength of the embedded mortar is consistent with the test data.The research findings provide important theoretical guidance for the wider use and application of embedded reinforcement.

Key words: brick masonry structure, embedded reinforcement, caulking mortar, pull-out test bord performance, bond strength

CLC Number:

TU362

Ting-bin LIU,Tao HUANG,Zuo-wei WANG,Jia-xiang OU,Yu HAN. Interfacial bond strength between post-embedded reinforcement and caulking mortar in brick masonry wall[J].Journal of Jilin University(Engineering and Technology Edition), 2025, 55(1): 198-210.

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References 30

1	谢启芳, 薛建阳, 赵鸿铁. 汶川地震中古建筑的震害调查与启示[J]. 建筑结构学报, 2010, 31():18-23.
	Xie Qi-fang, Xue Jian-yang, Zhao Hong-tie. Seismic damage investigation and analysis of ancient buildings in Wenchuan earthquake[J]. Journal of Building Structures, 2010, 31 (Sup.2): 18-23.
2	陶毅, 钟灵俊, 郑晓龙, 等. FRP束与砌体材料锚固性能试验研究[J]. 西安建筑科技大学学报: 自然科学版, 2015, 47(6): 825-829.
	Tao Yi, Zhong Ling-jun, Zheng Xiao-long, et al. Pullout behavior of FRP anchors in masonry[J]. Journal of Xi'an University of Architecture & Technology (Natural Science Edition), 2015, 47(6): 825-829.
3	景杰婧, 周长东. 内嵌纤维增强复合材料加固砌体结构研究进展[J]. 土木与环境工程学报(中英文), 2023, 45(1): 209-224.
	Jing Jie-jing, Zhou Chang-dong. Research progress on masonry structures strengthened with near surface mounted fibre reinforced polymer[J]. Journal of Civil and Environmental Engineering, 2023, 45(1): 209-224.
4	梅晓磊. 配筋砂浆带加固砖墙有限元模拟研究[D].西安:西安建筑科技大学土木工程学院, 2018.
	Mei Xiao-lei. The finite element analysis of masonry wall strengthened with reinforced mortar band[D]. Xi'an: College of Civil Engineering,Xi'an University of Architecture and Technology, 2018.
5	信任, 姚继涛. 多层砌体结构墙体典型抗震加固技术和方法[J]. 西安建筑科技大学学报: 自然科学版, 2010, 42(2): 251-255.
	Xin Ren, Yao Ji-tao. The seismic strengthening techniques and methods of multi-story masonry structures[J]. Xi'an University of Architecture & Technology (Natural Science Edition), 2010, 42(2): 251-255.
6	Ismail N, Ingham J M. In-situ and laboratory based out-of-plane testing of unreinforced clay brick masonry walls strengthened using near surface mounted twisted steel bars[J]. Construction and Building Materials, 2012, 36: 119-128.
7	Ismail N, Petersen R B, Masia M J, et al. Diagonal shear behaviour of unreinforced masonry wallettes strengthened using twisted steel bars[J]. Construction and Building Materials, 2011, 25(12): 4386-4393.
8	Sandoval C, Serpell R, Araya-Letelier G, et al. Shear behavior of single-and triple-thickness masonry panels strengthened by bed-joint structural repointing[J]. Construction and Building Materials, 2021, 286: No. 122925.
9	Corradi M, Speranzini E, Bisciotti G. Out-of-plane reinforcement of masonry walls using joint-embedded steel cables[J]. Bulletin of Earthquake Engineering, 2020, 18(10): 4755-4782.
10	Borri A, Castori G, Corradi M. Masonry confinement using steel cords[J]. Journal of Materials in Civil Engineering, 2013, 25(12): 1910-1919.
11	Borri A, Castori G, Corradi M. Strengthening of fair face masonry columns with steel hooping[J]. Materials and Structures, 2014, 47(12): 2117-2130.
12	Zhang Guang-tai, Shi Ke-bin, Li Yuan-ji. Experimental study on seismic behavior of brick walls strengthened with embedded bars[J]. Journal of Building Structures, 2013, 34(5): 145-150.
13	Liu Ting-bin, Jia Ru-bo, Pei Xian-ke, et al. Experimental research on seismic performance of damaged brick walls strengthened with embedded horizontal steel bars[J]. Advances in Civil Engineering, 2020(1): No.6520982.
14	刘廷滨. 水平嵌筋加固砖砌体墙粘结机理及抗震性能研究[D]. 兰州:兰州交通大学土木工程学院, 2016.
	Liu Ting-bin. Research on the bond mechanism and seismic behavior of brick masonry walls strengthened with embedded horizontal steel bars[D]. Lanzhou: School of Civil Engineering, Lanzhou Jiaotong University, 2016.
15	He Yi-dong, Guo Zi-xiong, Chen Zhen-ling, et al. Study on seismic behavior of stone wall strengthened by mounting bards in bed joints[J]. Earthquake Resistant Engineering and Retrofitting, 2009, 31(6): 24-27.
16	Yao X, Guo Z X, Basha S H, et al. Innovative seismic strengthening of historic masonry walls using polymer mortar and steel strips[J]. Engineering Structures, 2021, 228:111507.
17	邓明科, 樊鑫淼, 高晓军, 等. ECC面层加固受损砖砌体墙抗震性能试验研究[J].工程力学, 2015, 32(4): 120-129.
	Deng Ming-ke, Fan Xin-miao, Gao Xiao-jun, et al. Experimental investigation on seismic behavior of damaged brick masonry wall strengthened with ECC splint[J]. Engineering Mechanics, 2015, 32(4): 120-129.
18	胡向阳, 何忠茂, 何廷树. 掺加粉煤灰和矿粉对嵌缝加固胶泥性能的试验研究[J]. 混凝土, 2014(8): 153-156.
	Hu Xiang-yang, He Zhong-mao, He Ting-shu. Experimental research on admixture of fly ash and mineral powder on the properties of reinforced cement sealing[J]. Concrete, 2014(8): 153-156.
19	Birger G. Bond strength of injection anchors as supplementary reinforcement[C]∥The 13th International Brick and Block Masonry Conference, Amsterdam, Netherlands, 2004: 1-10.
20	周彬, 吕西林, 任晓崧. 既有砌体结构墙体植筋拉拔性能的理论分析与试验研究[J]. 建筑结构学报, 2012, 33(11): 132-141.
	Zhou Bin, Xi-lin Lyu, Ren Xiao-song. Theoretical analysis and experimental research of pull-out behavior of bonded steel bar embedded in brick wall of existing masonry structure[J]. Journal of Building Structures, 2012, 33(11): 132-141.
21	Matteo M, Gentilini C, Cristina G, et al. Bond of steel bars to masonry mortar joints Test results and analytical modelling[J]. Key Engineering Materials, 2017, 747: 319-325.
22	Li X, Wu Z, Zheng J, et al. Rate-dependent bond performance of plain bars in concrete under biaxial transverse tensions[J]. Engineering Structures, 2020, 216: No.110740.
23	Ma Y, Guo Z, Wang L, et al. Experimental investigation of corrosion effect on bond behavior between reinforcing bar and concrete[J]. Construction and Building Materials, 2017, 152: 240-249.
24	孙杨, 乔国富. 锈蚀钢筋与混凝土黏结性能研究综述[J].材料导报,2020,34(3): 122-131.
	Sun Yang, Qiao Guo-fu. Research on the bond properties between corroded reinforcing steel bar and concrete: a review[J]. Materials Reports, 2020, 34(3): 122-131.
25	Lin H, Zhao Y, Feng P. State-of-the-art review on the bond properties of corroded reinforcing steel bar[J]. Construction and Building Materials, 2019, 213:216-233.
26	Feng H, Shang H, Yang J, et al. Study on the bond behavior between steel bar with different derusting methods and concrete[J]. Journal of Building Engineering, 2022, 49: No.103962.
27	Wang L, Shen N, Zhang M, et al. Bond performance of Steel-CFRP bar reinforced coral concrete beams[J]. Construction and Building Materials, 2020, 245: No.118456.
28	吴丽丽, 王慧, 杨畅涵, 等.GFRP筋与自密实混凝土黏结性能的试验研究[J].复合材料学报, 2021, 38(10): 3484-3494.
	Wu Li-li, Wang Hui, Yang Chang-han, et al. Experimental study on bond properties between GFRP bars and self compacting concrete[J]. Acta Materiae Compositae Sinica, 2021, 38(10): 3484-3494.
29	郑山锁, 杨建军, 郑跃, 等. 锈蚀钢筋混凝土黏结滑移性能综述[J]. 材料导报, 2020, 34(): 1221-1226.
	Zheng Shan-suo, Yang Jian-jun, Zheng Yue, et al. Review of research on bond-slip of corroded reinforced concrete[J]. Materials Reports, 2020, 34(Sup.2): 1221-1226.
30	陈俊, 张白, 杨鸥, 等. 黏结长度对锈蚀钢筋与混凝土间黏结性能的影响[J]. 材料导报, 2019, 33(22): 3744-3751.
	Chen Jun, Zhang Bai, Yang Ou, et al. Impact of anchorage length on bond performance between corroded reinforcing steel bars and concrete[J]. Materials Reports, 2019, 33(22): 3744-3751.

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序号	钢筋类型	钢筋直径/mm	嵌缝砂浆强度/MPa	黏结长度/mm	试件数
1	光圆钢筋	8	5	370	3
2	光圆钢筋	8	10	370	3
3	光圆钢筋	8	15	370	3
4	光圆钢筋	8	20	370	3
5	光圆钢筋	8	15	240	3
6	光圆钢筋	6	10	370	3
7	变形钢筋	8	5	370	3
8	变形钢筋	8	10	370	3
9	变形钢筋	8	15	370	3
10	变形钢筋	8	20	370	3
11	变形钢筋	8	15	240	3

砂浆类型	砌筑砂浆		嵌缝砂浆
设计抗压强度等级/MPa	M 5		M 5	M 10	M 15	M 20
测试抗压强度/MPa	6.5		6.8	11.9	15.8	19.6

指标	直径/mm	屈服强度/MPa	伸长率/%	弹性模量/GPa	抗拉强度/MPa
HPB300	6	374.8	36	200	549.5
HPB300	8	361.7	32	200	540.2
HRB335	8	402.3	16	200	592.4

试件编号		P_u/kN	τ_u			S_u			破坏模式
试件编号		P_u/kN	E_u/MPa	AVG/MPa	?	E_p/mm	AVG/mm	?	破坏模式
P8-370-M5	1	10.80	1.08	1.02	0.05	0.60	0.57	0.04	拔出
	2	9.00	0.97			0.55			拔出
	3	10.40	1.02			0.55			拔出
P8-370-M10	1	13.50	1.45	1.36	0.06	0.99	0.74	0.31	拔出
	2	12.00	1.29			0.71			拔出
	3	12.50	1.35			0.53			拔出
P8-370-M15	1	14.50	1.56	1.61	0.54	1.01	1.20	0.15	拔出
	2	15.90	1.71			1.23			拔出
	3	14.50	1.56			1.35			拔出
P8-370-M20	1	17.00	1.80	1.87	0.10	2.24	2.32	0.07	拔出
	2	16.20	1.74			2.22			拔出
	3	19.30	2.08			2.50			拔出
P8-240-M15	1	11.50	1.91	1.96	0.05	0.83	0.73	0.14	拔出
	2	11.50	1.91			0.63			拔出
	3	12.50	2.07			0.73			拔出
P6-370-M10	1	9.40	1.34	1.35	0.03	0.93	0.74	0.25	拔出
	2	9.70	1.39			0.74			拔出
	3	9.10	1.31			0.55			拔出
R8-370-M5	1	16.60	1.79	1.74	0.33	2.87	2.69	0.08	破裂
	2	15.60	1.68			2.77			劈裂
	3	16.40	1.77			2.44			劈裂
R8-370-M10	1	19.00	2.04	2.08	0.03	3.61	3.31	0.09	劈裂
	2	19.00	2.04			2.99			劈裂
	3	20.00	2.15			3.34			劈裂
R8-370-M15	1	21.50	2.31	2.33	0.08	4.78	5.14	0.07	劈裂
	2	20.00	2.15			5.18			劈裂
	3	23.50	2.53			5.46			劈裂
R8-370-M20	1	22.60	2.43	2.59	0.06	3.61	2.96	0.22	劈裂
	2	24.40	2.63			2.99			劈裂
	3	25.30	2.72			2.28			劈裂
R8-240-M15	1	15.00	2.49	2.60	0.20	1.15	1.33	0.19	劈裂
	2	19.00	3.15			1.22			劈裂
	3	13.00	2.16			1.61			劈裂

Interfacial bond strength between post-embedded reinforcement and caulking mortar in brick masonry wall

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