Bending performance of glubam beams made with different processes
Bending performance of glubam beams made with different processes
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DOI：
10.1177/1369433218794327
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发表时间：
2018-08
影响因子：
2.6
通讯作者：
Z. Li;G-S Yang;Q. Zhou;B. Shan;Yan Xiao
中科院分区：
文献类型：
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作者：
Z. Li;G-S Yang;Q. Zhou;B. Shan;Yan Xiao
本文介绍了实验测试结果，旨在获得胶合竹（glubam）梁的物理和力学性能。对两种不同预处理的毛竹胶合板梁进行了试验研究。一种是用厚度约为2 mm的薄层竹条制作的胶合板梁试件，另一种是用厚度约为5-6 mm的厚层竹条制作的胶合板梁试件。足尺梁的试验结果表明，胶合板梁的性能与典型的木质胶合板相似，属于弹脆性。竹条的不同配置方式对胶合板梁的抗弯性能有一定的影响，竹条平放试件的平均极限承载力高于竹条立置试件。根据试验结果，提出了胶合板梁抗弯刚度和承载力的计算公式。
This article presents experimental testing results designed to obtain physical and mechanical properties of glued laminated bamboo (glubam) beams. Two types of glubam beams made with different pre-processed plybamboo boards were tested. One type glubam beam specimens were made with thin layer bamboo strips of about 2 mm thick, and the other were manufactured with thick layer bamboo strips of about 5–6 mm. Test results of the full-scale beams show that the behavior of the glubam beams was elasto-brittle, similar to typical wood-based glulam. The different configurations of bamboo strips have certain influence on the flexural performance of glubam beams, and the mean ultimate capacity of the samples with bamboo strips flatwise is higher than that of edgewise. Based on the experimental results reported herein, the strength capacity equations are proposed for calculating the flexural rigidity and strength capacities of the glubam beams.