林业科学 ›› 2013, Vol. 49 ›› Issue (3): 122-128.doi: 10.11707/j.1001-7488.20130317
• 论文 •
李霞镇, 钟永, 任海青
Li Xiazhen, Zhong Yong, Ren Haiqing
摘要： 选取试样尺寸、螺栓直径等因素对重组竹销槽承压强度进行分析,评价NDS/LRFD和Eurocode 5中销槽承压设计公式对重组竹销槽承压强度预测的适用性,分析2个加载方向试样的破坏形态。结果表明:试样尺寸在满足设计最小值的前提下,对销槽承压性能无显著影响,销槽承压强度值在104.40~169.77MPa范围内波动; 2个加载方向的销槽承压强度从数值上看,随螺栓直径的增大呈下降的趋势; NDS/LRFD和Eurocode 5对重组竹销槽承压强度的预测值偏小; 加载方向的不同对试样的破坏形式影响较大。
Abstract: The dowel-bearing property is very important in compression yield strength calculation of bolted connections and is a critical component of wood or bamboo connection design. In this paper, the dowel-bearing strength was studied based on dimension, bolt diameter as test parameters. The application of NDS/LRFD and Eurocode 5 in dowel-bearing strength prediction was assessed. Besides, the damage modes in two loading directions were analyzed. It showed no dimension effect on dowel-bearing strength which ranged between 104.40 MPa and 169.77 MPa in either direction, if the dimension reaches the minimum requirements. The dowel-bearing strength test values showed a decreasing trend with the bolt diameter increasing. NDS/LRF and Eurocode 5 all under predicted the dowel-bearing strength of recombinant bamboo. The damage modes of the two loading direction samples were obviously different.
李霞镇;钟永;任海青. 现代竹结构中重组竹销的槽承压强度[J]. 林业科学, 2013, 49(3): 122-128.
Li Xiazhen;Zhong Yong;Ren Haiqing. Dowel-Bearing Strength of Recombinant Bamboo in Modern Bamboo Structure[J]. Scientia Silvae Sinicae, 2013, 49(3): 122-128.
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