Effect of Bolt Arrangements on Mechanical Properties of Beam-Column and Beam Joints of Glulam with Slotted-in Steel Plate

CHEN Zhou; ZHANG Shen; LI Ting; XIONG Shishu

doi:10.12326/j.2096-9694.2022233

RESEARCH PAPERS | Views : 0 下载量: 10 CSCD: 0

PDF
Export
Share
Collection
Album

Effect of Bolt Arrangements on Mechanical Properties of Beam-Column and Beam Joints of Glulam with Slotted-in Steel Plate
1.Central-South Architectural Design Institute Co.,Ltd.,Wuhan 430071,Hubei,China
2.School of Civil and Hydraulic Engineering,Huazhong University of Science and Technology,Wuhan 430074,Hubei,China
Vol. 37, Issue 4, Pages: 20-27(2023)
DOI： 10.12326/j.2096-9694.2022233

扫描看全文

陈州,张慎,李霆等.螺栓排列对内填钢板胶合木梁柱和梁式节点力学性能的影响[J].木材科学与技术,2023,37(04):20-27.

CHEN Zhou,ZHANG Shen,LI Ting,et al.Effect of Bolt Arrangements on Mechanical Properties of Beam-Column and Beam Joints of Glulam with Slotted-in Steel Plate[J].Chinese Journal of Wood Science and Technology,2023,37(04):20-27.
陈州,张慎,李霆等.螺栓排列对内填钢板胶合木梁柱和梁式节点力学性能的影响[J].木材科学与技术,2023,37(04):20-27. DOI： 10.12326/j.2096-9694.2022233.

CHEN Zhou,ZHANG Shen,LI Ting,et al.Effect of Bolt Arrangements on Mechanical Properties of Beam-Column and Beam Joints of Glulam with Slotted-in Steel Plate[J].Chinese Journal of Wood Science and Technology,2023,37(04):20-27. DOI： 10.12326/j.2096-9694.2022233.

摘要

为研究螺栓排列方式对内填钢板胶合木节点力学性能的影响，对螺栓齐列、错列的胶合木梁柱节点及梁式节点进行单调加载试验。探讨节点失效模式及破坏机理，获得该类节点的弯矩-转角及荷载-位移曲线，并对节点的刚度、延性、承载能力进行分析。试验结果表明，除加载初期，螺栓与螺孔之间因初始空隙发生接触的低刚度段外，节点受力过程大致可分为弹性工作阶段、带裂缝工作阶段和破坏阶段。螺栓错列可以提高梁柱节点及梁式节点的受弯、抗拉承载力和极限变形：其屈服弯矩和抗拉屈服荷载相较于螺栓齐列梁柱节点及梁式节点，分别提高了35%和7.1%。螺栓错列梁柱节点在塑性阶段变形较小，其延性系数约为螺栓齐列梁柱节点的71%；螺栓错列梁式节点的塑性变形较大，延性较好，抗拉延性系数为螺栓齐列梁式节点的2.79倍。

Abstract

In order to study the effect of bolt arrangements on the mechanical properties of bolted glulam joints with slotted-in steel plates, monotonic loading tests were carried out on beam-column joints and beam joints in square and stagger bolt arrangements. The failure mode and failure mechanism were studied. The stiffness, ductility, and bearing capacity of these joints were analyzed through the bending moment-rotation and load-displacement curves. The test results indicate that in addition to the low stiffness phase when the bolt contacts the screw hole at the initial loading stage, the stress process of bolted glulam joints were divided into elastic, crack, and failure stages. The staggered arrangement of bolts improve the bending and tensile bearing capacity and ultimate deformation of beam-column joints and beam joints: the yield bending moment and tensile yield load increase by about 35% and 7.1% respectively, compared to the beam-column joints and beam joints in square bolt arrangements. For the staggered bolted joints, the deformation of beam-column joints in the plastic stage is small. The ductility coefficient is about 71% of that of the squared bolted beam-column joints. The staggered bolted beam joints have better plastic deformation and ductility. The tensile ductile coefficient is 2.79 times that of squared bolted beam joints.

关键词

胶合木梁柱节点梁式节点钢填板螺栓连接承载能力转动性能破坏模式

Keywords

glulambeam-column jointsbeam jointsslotted-in steel platebolted connectionloading capacityrotational behaviorfailure mode

references

徐天琦, 马瑜蓉, 宋晓滨, 等. 带翼缘钢填板-螺栓连接胶合木梁-柱节点转动性能试验研究[J]. 建筑结构学报, 2017, 38(9): 131-137.

XU T Q, MA Y R, SONG X H, et al. Experimental study on rotational behavior of bolted glulam beam-to-column connections with slotted-in flanged steel plates [J]. Journal of Building Structures, 2017, 38(9):131-137.

张俊珍, 钟永, 赵荣军, 等. 木结构螺栓连接的力学性能研究进展[J]. 木材工业, 2012, 26(4): 39-42, 52.

ZHANG J Z, ZHONG Y, ZHAO R J, et al. Reviews of mechanical properties for timber bolted joints[J]. China Wood Industry, 2012, 26(4): 39-42, 52.

徐德良, 刘伟庆, 杨会峰, 等. 木材-钢填板螺栓连接的承载能力试验研究[J]. 南京工业大学学报(自然科学版), 2009, 31(1): 87-91, 96.

XU D L, LIU W Q, YANG H F, et al. Experimental study on bearing capacity of bolted wood-steel-wood connections in timber structures [J]. Journal of Nanjing University of Technology (Natural Science Edition), 2009, 31(1): 87-91, 96.

王明谦, 顾祥林, 宋晓滨, 等. 胶合木梁柱嵌入钢板-螺栓拼接节点纯弯与弯剪性能试验研究[J]. 建筑结构学报, 2016, 37(4): 64-72.

WANG M Q, GU X B, SONG X B, et al. Experimental study on bolted glued laminated timber connections with slotted-in steel plates under pure bending and combined shear and bending [J]. Journal of Building Structures, 2016, 37(4): 64-72.

HASSANIEH A, VALIPOUR H R, BRADFORD M A. Experimental and analytical behaviour of steel-timber composite connections [J]. Construction and Building Materials, 2016, 118: 63-75.

HASSANIEH A, VALIPOUR H R, BRADFORD M A, et al. Modelling of steel-timber composite connections: Validation of finite element model and parametric study [J]. Engineering Structures, 2017, 138: 35-49.

LAM F, GEHLOFF M, CLOSEN M．Moment-resisting bolted timber connections [J]. Structures and Buildings, 2010, 163(4): 167-174.

GB/T 50708—2012, 胶合木结构技术规范[S].

GB/T 50708—2012, Technical code of glued laminated timber structures[S].

XU B H, Bouchair A, Racher P. Mechanical behavior and modeling of dowelled steel-to-timber moment-resisting connections [J]. Journal of Structural Engineering, 2015, 141(6): 1-11.

何敏娟, 陶铎, 李征, 等. 重组木框架梁柱节点力学性能试验研究[J]. 东南大学学报(自然科学版), 2018, 48(6): 1013-1020.

HE M J, TAO D, LI Z, et al. Experimental investigation of mechanical property of dowel-type post-and-beam connections made of wood scrimber composite [J]. Journal of Southeast University (Natural Science Edition), 2018, 48(6): 1013-1020.

李征, 罗晶何敏娟, 等. 木梁柱螺栓钢填板节点转动性能理论计算方法[J]. 土木工程学报, 2021, 54(3): 98-108, 128.

LI Z, LUO J, HE M J, et al. Analytical investigation into the rotational behavior of glulam bolted connections with slotted-in steel plates under coupled bending moment and shear force [J]. China Civil Engineering Journal, 2021, 54(3): 98-108, 128.

YASUMURA M, KAWAI N. Estimating seismic performance of wood-framed structures[J]. Proceedings of Wcte, 1998(2): 564-571.

刘慧芬, 何敏娟. 自攻螺钉参数设置对胶合木梁柱节点受力性能的影响[J].建筑结构学报, 2015, 36(7): 148-156.

LIU H F, HE M J. Effects of self-tapping screw on performance of glulam beam-to-column connections[J]. Journal of Building Structures, 2015, 36(7): 148-156.

EN 1995-1-1 Eurocode 5: design of timber structures: part 1-1: general common rules and rules for buildings[S]. Brussels, Belgium: CEN, 2004.

Alert me when the article has been cited

提交

Dowel Bearing Strength and Influential Factors of Japanese Larch Glulam

Review on Resin Development for Bonding Wood with High Moisture