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Effect of moisture content variation on short term dowel-bearing strength

机译:水分含量变化对短期木榫强度的影响

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Instantaneous (a few minutes) and short term (a few days) embedment test results are presented in this paper. Douglas fir specimens with 6d width, 7d long and 2d or 4d thick with d 8, 14 and 20 mm were used for instantaneous tests. Natural drying condition provide moisture a continuous evolution of moisture content values between 13 and 36%. Dowel bearing strength, failure type and envelop curve are presented. Short term test with seasoned and unseasoned specimens tested in dry and wet service condition are realized with a five days long preloading at 40% of the estimated maximal strength. Dowel bearing strength, envelop curve and creep displacement are presented.
机译:本文介绍了瞬时(几分钟)和短期(几天)的嵌入测试结果。宽度为6d,长度为7d,厚度为2d或厚度为4d,直径为8、14和20 mm的花旗松样品用于瞬时测试。自然干燥条件为水分提供了水分含量在13%到36%之间的连续变化。给出了定位销的强度,破坏类型和包络曲线。通过在干燥和潮湿条件下测试的经验丰富和未经验化的样本进行短期测试,可以在估计最大强度的40%的情况下进行为期五天的预加载。给出了定位销的强度,包络曲线和蠕变位移。

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