竹层积材钢夹板螺栓节点的承压性能
作者:
基金项目:

“十二五”国家科技支撑计划项目(2012BAD23B01)


Compression Performance of Bolted Connection withMetal Plates for Laminated Bamboo Board
Author:
  • 摘要
  • | |
  • 访问统计
  • |
  • 参考文献 [23]
  • |
  • 相似文献 [20]
  • | | |
  • 文章评论
    摘要:

    进行了4个测试组共20个竹层积材钢夹板螺栓节点承压试验研究,并采用ABAQUS有限元软件建立了螺栓节点的三维实体非线性有限元模型,分析了竹层积材厚度和螺栓直径对节点刚度、屈服载荷和破坏形式等力学性能的影响.研究表明:非线性有限元计算结果与试验结果吻合良好,能够准确预测节点刚度、屈服载荷和破坏模式;随螺栓直径的增加,螺栓节点的刚度和屈服载荷大致呈线性增加;竹层积材厚度的增加能显著提高节点的极限载荷和延性系数;节点的破坏形式受螺栓直径和竹层积材厚度的共同影响,当节点破坏形态为Ⅰ型时,螺栓和竹层积材这2种材料的强度均能充分发挥且节点延性系数较高,节点力学性能最佳.

    Abstract:

    Four groups of twenty bolted connections with metal plates for laminated bamboo board were tested by compressive load. A 3 D nonlinear finite element(FE) model of bolted connections was developed incorporating ABAQUS FE software. The effect of board thickness and bolt diameter on stiffness, yield strength and failure mode were analyzed. It is shown the nonlinear finite element analysis can be used to predict the stiffness, yield strength and failure models of the bolted connections, for the results obtained by FE analysis agree well with those obtained by the test. Both the stiffness and the yield strength increase linearly with increase of bolt diameter. The ultimate strength and ductility of bolted connection are improved by increasing the thickness of bamboo laminated board. Besides, the failure models of bolted connection are affected by bolt diameter and the thickness of bamboo laminated board. When the failure model is typeⅠ, the strength of bolt and bamboo laminated board can be fully performed, and the ductility and mechanical properties of bolted connection are all in good state.

    参考文献
    [1]刘一星,赵广杰.木质资源材料学[M].北京:中国林业出版社,2004:141 160.
    LIU Yi xing,ZHAO Guang jie.Material science of wooden resource[M].Beijing:China Forestry Publishing House,2004:141 160.(in Chinese)
    [2]TRAYER G W.The bearing strength of wood under bolts[R].Madison:United States Department of Agriculture,1932.
    [3]JOHANSEN K W.Theory of timber connections[J].International Association of Bridge and Structural Engineering,1949(9):249 262.
    [4]SOLTIS L A,WIKLINSON T L.Bolted connection design[R].Madison:United States Department of Agriculture,Forest Service,Forest Products Laboratory,1987.
    [5]樊承谋.木结构螺栓联接的工作原理及计算公式:关于国际木结构设计规范第五稿螺栓联接计算公式的讨论[J].哈尔滨建筑工程学院学报,1982(1):18 36.
    FAN Cheng mou.The bolted connection design of timber structure:Discuss about the bolted connection design for international design of timber structure[J].Journal of Harbin University of Civil Engineering and Architecture,1982(1):18 36.(in Chinese)
    [6]RAMMER D R,WINISTORFER S G.Effect of moisture content on dowel bearing strength[J].Wood and Fiber Science,2001,33(1):126 139.
    [7]徐德良,刘伟庆,周叮,等.胶合木与胶合木螺栓连接力学性能试验研究[J].建筑结构学报,2011,32(7):93 100.
    XU De liang,LIU Wei qing,ZHOU Ding,et al.Experimental study of bolted glued timber to timber joints[J].Journal of Building Structures,2011,32(7):93 100.(in Chinese)
    [8]费本华,张东升,任海青,等.竹结构材连接件的承载能力[J].南京林业大学学报,2008,32(3):68 70.
    FEI Ben hua,ZHANG Dong sheng,REN Hai qing,et al.The bearing capacity of the joint composed by laminated bamboo lumber[J].Journal of Nanjing Forestry University,2008,32(3):68 70.(in Chinese)
    [9]GB 50329—2002木结构试验方法标准[S].
    GB 50329—2002Standard for methods testing of timber structures[S].(in Chinese)
    [10]GB 1928—2009木材物理力学试验方法总则[S].
    GB 1928—2009General requirements for physical and mechanical tests of wood[S].(in Chinese)
    [11]ASTM D5652Standard test methods for bolted connections in wood and wood based products[S].
    [12]NDS—2005National design specification for wood construction[S].
    [13]潘景龙,祝恩淳.木结构设计原理[M].北京:中国建筑工业出版社,2009:70 79.
    PAN Jing long,ZHU En chun.Design principles of timber structures[M].Beijing:China Architecture and Building Press,2009:70 79.(in Chinese)
    [14]MOSES D M,PRION H G.A three dimensional model for bolted connections in wood[J].Canadian Journal of Civil Engineering,2003,30(3):555 567.
    [15]张少实,庄茁,杜善义.复合材料与粘弹性力学[M].北京:机械工业出版社,2007:39 41.
    ZHANG Shao shi,ZHUANG Zhuo,DU Shan yi.Composite material and visco elastic mechanic[M].Beijing:China Machine Press,2007:39 41.(in Chinese)
    引证文献
    网友评论
    网友评论
    分享到微博
    发 布
引用本文

钟永,任海青,张俊珍,李霞镇,徐伟涛.竹层积材钢夹板螺栓节点的承压性能[J].建筑材料学报,2013,(4):642-648

复制
分享
文章指标
  • 点击次数:980
  • 下载次数: 0
  • HTML阅读次数: 0
  • 引用次数: 0
历史
  • 收稿日期:2012-03-14
  • 最后修改日期:2012-05-25
  • 在线发布日期: 2013-09-06
文章二维码