Bolt-Layout-Influence Study on Tensile Performance of Glulam Timber Bolted Connection with Slotted Steel Plate

被引：0
|
作者：
Liu Y. [1 ]
Guo M. [1 ]
He H. [2 ]
Cao J. [3 ]
机构：
[1] School of Civil Engineering, Zhengzhou University, Zhengzhou
[2] School of Architectural Engineering, Taizhou University, Taizhou
[3] National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing
来源：
Tongji Daxue Xuebao/Journal of Tongji University | 2024年 / 52卷 / 05期
关键词：
bolt layout; experimental study; fitted formula; glulam timber; tensile connection;
D O I：
10.11908/j.issn.0253-374x.24032
中图分类号：
学科分类号：
摘要：
This paper introduces a novel node connection method in wooden structures known as the multi-bolt steel insert plate connection. It categorizes specimens into 12 groups，each containing six specimens，for tensile testing，with four influencing factors，i.e.，bolt number，arrangement，bolt diameter，and base material thickness considered. The parameters obtained include failure modes， initial stiffness， yield load， peak load， and ductility coefficient. The test results reveal that，under the same conditions of consistent wood thickness and bolt diameter，damage occurrence increases with the number of bolts，and the failure mode exhibits a similar pattern. Splitting cracks of different degrees emerge on the left and right sides of the wood，extending from the top to below the last row of bolts. In terms of mechanical properties，an increase in the number of bolts corresponds to higher initial stiffness，yield load，and peak load，accompanied by a decrease in ductility. Ultimately，formulas for the initial stiffness and peak load of multi-bolt steel insert plate connection nodes are derived，utilizing bolt diameter and quantity as independent variables. These formulas align closely with the experimental data，validating their accuracy. © 2024 Science Press. All rights reserved.
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页码：707 / 716
页数：9
相关论文
共 11 条
  • [1] LIU Weiqing, YANG Huifeng, Research progress in modern timber structures, J］Journal of Building Structures, 40, 2, (2019)
  • [2] YASUMURA M., Estimation of yield and ultimate strengths of bolted timber joints by nonlinear analysis and yield theory［J］, Journal of Wood Science, 49, 5, (2003)
  • [3] HAYASHI T, HARADA K，, Et al., Shear tests of timber joints composed of sugi composite glulam beams using newly developed steel connectors［J］, Journal of Wood Science, 48, 6, (2002)
  • [4] WANG Mingqian, SONG Xiaobin, GU Xianglin, Et al., Research on the rotational performance of glued wood beam column bolted steel filled plate joints ［J］, Journal of Building Structures, 35, 9, (2014)
  • [5] QUENNEVILLE P., Brittle failure in the parallel-to-grain direction of multiple shear softwood timber connections with slotted-in steel plates and dowel-type fasteners［J］, Construction and Building Materials, 216, (2019)
  • [6] ZHANG Shengdong, FAN Xinhai, QU Wenjun, Research on the mechanical properties of embedded multiple steel plate pin wood connections, J］Journal of Tongji University（Natural Science）, 40, 8, (2012)
  • [7] Rotational performance of glulam bolted joints： Experimental investigation and analytical approach ［J］, Construction and Building Materials, 213, (2019)
  • [8] HE Minjuan, ZHAO Yi, GAO Chengyong, Et al., The influence of bolt arrangement and self tapping screws on the lateral force resistance performance of wooden beam column joints ［J］, Journal of Tongji University （Natural Science）, 43, 6, (2015)
  • [9] Test methods for bolted connections in wood and wood-based products：ASTM D5652-15 ［S］, (2015)
  • [10] DORN M，, BORST K D，, EBERHARDSTEINER J., Experiments on dowel-type timber connections［J］, Engineering Structures, 47, (2013)
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