胶合竹-螺杆植筋锚固性能试验研究

单波; 代上棋; 孔原; 林煜铭; 张命鹏; 黄斌

doi:10.13204/j.gyjzG22010508

胶合竹-螺杆植筋锚固性能试验研究

doi: 10.13204/j.gyjzG22010508

单波^1,2,
代上棋¹,
孔原¹,
林煜铭¹,
张命鹏¹,
黄斌^2,3

1. 湖南大学土木工程学院, 长沙 410082;
2. 海南大学土木建筑工程学院, 海口 570228;
3. 浙江大学(宁海)生物质材料与碳中和建设联合研究中心, 浙江宁波 315600

基金项目:

国家重点研发计划项目(2017YFC0703502)

国家自然科学基金地区基金项目(52068019)。

详细信息

作者简介:
单波,男,1976年出生,博士,教授,博士生导师。电子信箱:supershanb@163.com

计量
- 文章访问数: 69
- HTML全文浏览量: 19
- PDF下载量: 0
- 被引次数: 0
出版历程
- 收稿日期: 2022-01-05
- 网络出版日期: 2022-12-01

Experimental Research on Anchorage Performance of Glued-in Threaded Steel Rod in Glubam

1. College of Civil Engineering, Hunan University, Changsha 410082, China;
2. College of Civil Engineering and Architecture, Hainan University, Haikou 570228, China;
3. Zhejiang University (Ninghai) Joint Research Center for Bio-Based Materials and Carbon Neutral Development, Ningbo 315600, China

摘要

摘要: 聚焦于现代竹结构节点刚度的提升,开展胶合竹-螺杆植筋锚固性能研究,完成了12组胶合竹-螺杆单筋植筋节点的对拉试验,研究参数包括钻孔直径、锚固长度以及锚固长径比。试验观察到四种破坏模式,包括两种剪切破坏、螺杆屈服破坏与胶合竹劈裂破坏。对于直径分别为12 mm和16 mm的螺杆,其屈服破坏的临界锚固长径比可取为12.5和15。分析结果表明:胶合竹-单螺杆植筋连接的黏结强度随钻孔直径的增加而增大,随锚固长径比的增加而减小,选取直径相对较小的螺杆作为筋材,有利于提高传力效率;典型的胶合木-螺杆植筋黏结强度计算模型均不适用于胶合竹-螺杆植筋连接;基于试验结果,提出了胶合竹-单螺杆植筋连接承载力计算方法,计算值与试验结果较为接近。
- 胶合竹 /
- 植筋 /
- 锚固性能 /
- 黏结强度 /
- 锚固长径比
Abstract: This study focused on improving the connection stiffness of modern bamboo structures. Total twelve groups, each including six identical glubam specimens with glued-in single threaded rod, were tested to failure in the pull-pull configuration. It was observed that the specimens exhibited four different failure modes, including two types of the shear failure at different interfaces, the yield failure of threaded rod, and the splitting failure of glubam. In order to control yield failure mode, the lower limit of bond length-diameter ratio could be taken as 12.5 and 15 for thread rods of M12 and M16, respectively. Analysis results showed that the bond strength of glued-in single threaded rod in glubam increased as increasing the drill-hole diameter, while it reduced as increasing the bond length-diameter ratio. Typical existing strength models for glued-in rod in timber were not fit to predict the bond strength of glued-in threaded rod in glubam. Based on test data in this investigation, a strength model was also proposed for the glued-in single threaded rod in glubam, and it showed a good prediction accuracy.
- glubam /
- glued-in rod /
- anchorage performance /
- bond strength /
- anchorage length-diameter ratio

HTML全文

参考文献(38)

[1]	张时聪,王珂,杨芯岩,等.建筑部门碳达峰碳中和排放控制目标研究[J].建筑科学,2021,37(8):189-198.
[2]	肖岩,单波.现代竹结构[M/OL].北京:中国建筑工业出版社,2013.
[3]	肖岩,李智,吴越,等.胶合竹结构的研究与工程应用进展[J].建筑结构,2018,48(10):84-88.
[4]	章卫钢,李延军,方明俊.竹集成材增湿处理技术研究[J].林业科技,2010,35(5):42-45.
[5]	李海涛,魏冬冬,苏靖文,等.竹重组材偏心受压试验研究[J].建筑材料学报,2016,19(3):561-565 ,58.
[6]	十部门关于加快推进竹产业创新发展的意见[EB/OL].[2021-11-11].http://www.gov.cn/zhengce/zhengceku/2021-12/07/content_5658570.htm.
[7]	谢桥军,肖岩.大跨度胶合竹结构屋架受力性能研究[J].建筑结构学报,2016,37(4):47-53.
[8]	XIAO Y, YANG R Z, SHAN B. Production, environmental impact and mechanical properties of glubam[J]. Construction and Building Materials, 2013, 44: 765-773.
[9]	冯立,肖岩,单波,等.胶合竹结构梁柱螺栓连接节点承载力试验研究[J].建筑结构学报,2014,35(4):230-235.
[10]	WANG R, WEI SQ, LI Z, et al. Performance of connection system used in lightweight glubam shear wall[J]. Construction and Building Materials, 2019, 206: 419-431.
[11]	WIDMANN R, STEIGER R, GEHRI E. Pull-out strength of axially loaded steel rods bonded in glulam perpendicular to the grain[J]. Materials and Structures, 2007, 40(8): 827-838.
[12]	汤举,杨会峰,陆伟东,等.胶合木植筋粘结锚固性能试验研究[J].建筑结构,2011,41(增刊2):457-462.
[13]	MOHAMAD W N, SULIMAN N H, KAMARUDIN M K, et al. Pull-out strength of steel rods bonded into mengkulang (tarrietia javanica) glulam at five different angles to the grain[J]. Journal of Tropical Forest Science, 2018, 30(1): 67-74.
[14]	BROUGHTON J G, HUTCHINSON A R. Pull-out behaviour of steel rods bonded into timber[J]. Materials and Structures, 2001, 34(2): 100-109.
[15]	LING Z B, YANG H F, LIU W Q, et al. Pull-out strength and bond behaviour of axially loaded rebar glued-in glulam[J]. Construction and Building Materials, 2014, 65(13): 440-449.
[16]	ROSSIGNON A, ESPION B. Experimental assessment of the pull-out strength of single rods bonded in glulam parallel to the grain[J]. Holz als Roh-und Werkstoff, 2008, 66(6): 419-432.
[17]	CHANS D O, CIMADEVILA J E, GUTIERREZ E M. Withdrawal strength of threaded steel rods glued with epoxy in wood[J]. International Journal of Adhesion & Adhesives, 2013, 44(26): 115-121.
[18]	CHANS D O, CIMADEVILA J E, GUTIERREZ E M. Strength of joints with epoxy-glued threaded steel rods in Tali Timber[J]. Journal of Materials in Civil Engineering, 2011, 23(4): 453-458.
[19]	YAN Y, LIU H, ZHANG X, et al. The effect of depth and diameter of glued-in rods on pull-out connection strength of bamboo glulam[J]. Journal of Wood Science, 2016, 62(1): 109-115.
[20]	AZINOVIC B, SERRANO E, KRAMAR M, et al. Experimental investigation of the axial strength of glued-in rods in cross laminated timber[J]. Materials and Structures, 2018, 51(6): 1431-1143.
[21]	LING Z, XIANG Z, LIU W, et al. Load-slip behaviour of glue laminated timber connections with glued-in steel rod parallel to grain[J]. Construction and Building Materials, 2019, 227: 1-13.
[22]	HE Z W, XIAO Y, ASCE F. Experimental study on axial pull-out behavior of steel rebars glued-in glubam[J]. Journal of Materials in Civil Engineering, 2020, 32(3), 04020021.DOI: 10.1061/(ASCE)MT.1943-5533.0003080.
[23]	凌志彬,杨会峰,刘伟庆,等.胶合木植筋黏结锚固性能试验研究[J].建筑结构学报,2013,34(9):132-141.
[24]	左宏亮,韩晓彬,左煜,等.植筋胶合木杆件拉压性能试验[J].东北林业大学学报,2016,44(6):63-67.
[25]	GARDELLE V, MORLIER P. Geometric parameters which affect the short term resistance of an axially loaded glued-in rod[J]. Materials and Structures, 2007, 40(1): 127-138.
[26]	YEBOAH D, TAYLOR S, MCPOLIN D, et al. Pull-out behaviour of axially loaded basalt fibre reinforced polymer (BFRP) rods bonded perpendicular to the grain of glulam elements[J]. Construction and Building Materials, 2013, 38(5): 962-969.
[27]	European Committee for Standardization CEN.Eurocode 5: design of timber structures: part 2: bridges ENV 1995-2:1997[S]. Brussels, Belgium, 1997.
[28]	严彦,刘焕荣,聂玉静,等.胶合竹植筋深度及直径对抗拔性能的影响[J].安徽农业大学学报,2015,42(2):177-180.
[29]	LUO X Y, REN H Q, YONG Z. Experimental and theoretical study on bonding properties between steel barand bamboo scrimber[J]. Journal of Renewable Materials, 2020, 8(7): 773-787.
[30]	中国木业保护工业协会.装配式竹结构活动房屋技术规程: T/CWPIA 4-2021[S]. 北京:中国建材工业出版社,2021.
[31]	XIAO Y, SHAN B, CHEN G, et al. Development of a new type Glulam-GluBam[C]//International Conference on Modern Bamboo Structures.Changsha: 2007: 41-47.
[32]	中国工程建设标准化协会.工程竹材: T/CECS 10138—2021[S].北京:中国标准出版社, 2021.
[33]	SHAN B, CHEN C Q, DENG J Y, et al. Assessing adhesion and glue-line defects in cold-pressing lamination of glubam[J]. Construction & Building Materials, 2021, 274, 122106. DOI: 10.1016/j.conbuildmat.2020.122106.
[34]	张秀标,江泽慧,孙正军,等.胶合竹顺纹植筋的抗拔性能[J].东北林业大学学报,2015,43(4):96-100 ,107.
[35]	STEIGER R, GEHRI E, WIDMANN R. Pull-out strength of axially loaded steel rods bonded in glulam parallel to the grain[J]. Materials and Structures, 2007, 40(1): 69-78.
[36]	LING Z, YANG H, LIU W, et al. Local bond stress-slip relationships between glue laminated timber and epoxy bonded-in GFRP rod[J]. Construction and Building Materials, 2018, 170: 1-12.
[37]	European Committee for Standardization. Timber structures-joints made with mechanical fasteners-general principles for the deter-mination of strength and deformation characteristics: BS EN 26891-1991[S]. Brussels: European Committee for Standardization,1991.
[38]	Deutsches Institutfür Normung. Deutsches institut für DIN: 1052: 2008-12[S]. Berlin: Bautechnik, 2008.