Embedment strength of smooth dowel-type fasteners in cross-laminated timber
Embedment strength of smooth dowel-type fasteners in cross-laminated timber
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交叉层压木材中光滑销钉型紧固件的嵌入强度
DOI：
10.1016/j.conbuildmat.2019.117243
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发表时间：
2020-02
影响因子：
7.4
通讯作者：
Xinyi Shi
中科院分区：
文献类型：
--
作者：
Weiqun Dong;Zhiqiang Wang;Jianhui Zhou;Hao Zhang;Yue Yao;Wei Zheng;Meng Gong;Xinyi Shi
嵌入强度是木结构中柱式连接设计的一个基本参数。它被称为系统属性，取决于紧固件和木材材料的特性。交叉层合板(CLT)的正交铺层在连接性能方面区别于实木(ST)和胶合板(GLT)。研究了CLT铺层特性(即横层厚度与总厚度之比，TRTL)以及木材密度、销钉直径和加载角度对光面销钉嵌合强度的影响。根据ASTM D5764中的半孔法，共进行了660次CLT埋入试验。结果表明，由于CLT中横向层的存在，CLT的嵌入强度和破坏模式与GLT不同。四个影响因素对CLT嵌入力的影响趋势不同，且每个因素对CLT嵌入力的影响具有统计学意义。实验数据被用来检验现有的CLT嵌入强度预测模型。研究发现，这四个影响因素对CLT嵌入强度的影响在不同的模型中有所不同。在试验结果的基础上，提出了修正的设计方程，与现有的设计方程吻合较好。
Embedment strength is a fundamental parameter for dowel-type connection design in timber structures. It is known as a system property dependent on the characteristics of both the fastener and the wood material. The orthogonal layup in cross-laminated timber (CLT) differentiates it from solid timber (ST) and glued-laminated timber (GLT) in terms of connection properties. The effects of CLT layup feature (i.e., the thickness ratio of transverse layer to the total thickness, TRTL) as well as wood density, dowel diameter, and loading angle on the embedment strength of smooth dowel-type fasteners were investigated in this study. A total of 660 CLT embedment tests were performed according to the half-hole method in ASTM D5764. The results indicated that the embedment strength and failure modes of CLT were different from those of GLT due to the existence of a transverse layer in CLT. The influence trends of four effective factors on the CLT embedment strength were different, and each factor had a statistically significant impact on the embedment strength of the CLT. The experimental data were used to examine the existing predictive models of CLT embedment strength. It was found that the influences of the four effective factors on CLT embedment strength differed among the models. A modified design equation was proposed based on the test results with a better agreement than the existing design equations.
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DOI：
10.1002/pse.213
发表时间：
2006-04
期刊：
Progress in Structural Engineering and Materials
影响因子：
--
作者：
Tinozivashe Zhou;Z. Guan
通讯作者：
Tinozivashe Zhou;Z. Guan
影响因子：
5.5
作者：
Eero Tuhkanen;J. Mölder;G. Schickhofer
通讯作者：
Eero Tuhkanen;J. Mölder;G. Schickhofer
影响因子：
5.5
作者：
Matteo Izzi;G. Rinaldin;A. Polastri;M. Fragiacomo
通讯作者：
Matteo Izzi;G. Rinaldin;A. Polastri;M. Fragiacomo
影响因子：
5.5
作者：
A. Ringhofer;R. Brandner;H. Blass
通讯作者：
A. Ringhofer;R. Brandner;H. Blass
改进平面剪切试验技术特性对正交胶合木滚剪性能的影响
DOI：
10.4067/s0718-221x2018005031601
发表时间：
2018
期刊：
Maderas. Ciencia y tecnología
影响因子：
--
作者：
Zhiqiang Wang;Jianhui Zhou;Weiqun Dong;Yue Yao;Meng Gong
通讯作者：
Meng Gong