Issue |
MATEC Web Conf.
Volume 275, 2019
1st International Conference on Advances in Civil Engineering and Materials (ACEM1) and 1st World Symposium on Sustainable Bio-composite Materials and Structures (SBMS1) (ACEM2018 and SBMS1)
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Article Number | 01020 | |
Number of page(s) | 7 | |
Section | Bio-composite Materials and Structures | |
DOI | https://doi.org/10.1051/matecconf/201927501020 | |
Published online | 13 March 2019 |
Embedment Strength of Cross-Laminated Timber for Smooth Dowel-type Fasteners
1 College of Materials Science and Engineering, Nanjing Forestry University, 159 Longpan Road, Nanjing, Jiangsu 210037, China
2 Integrated Wood Engineering, University of Northern British Columbia, 499 George StPrince George, BC Canada V2L 1R7
3 Wood Science and Technology Centre, University of New Brunswick, 1350 Regent Street, Fredericton, NB E3C 2G6, Canada
* Corresponding author: wangzhiqiang@njfu.edu.cn
Embedment strength is a significant property in the dowel type connection in timber structure, i.e. cross-laminated timber (CLT). The CLT design properties are different from those of sawn timber (ST) and glued-laminated timber (GLT) because of the orthogonal structure, which may particularly have influence on the design of connections. The layup feature, i.e. the thickness ratio of transverse layer (TRTL) was considered as an effective factor on CLT embedment strength in this study, except for other factors, i.e. wood density, smooth dowel diameter, and loading angle. Approximate 660 embedment tests were performed according to ASTM D5764 half-hole test method. A few of existing design models for CLT embedment strength were evaluated using experimental data. It was found that different factors had different effect tendency and each factor had statistically significant impact on CLT embedment strength. The embedment strength and failure modes of CLT were obviously different from those of GLT due to the existence of transverse layer in CLT. The existing design equations should be improved. Based on the test results, a new design equation was proposed which had better prediction.
© The Authors, published by EDP Sciences, 2019
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