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Experimental test of threaded steel rods glued-in hardwood with epoxy

机译：用环氧树脂粘合螺纹钢棒的实验试验

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摘要

This paper summarizes test results of an experimental study on threaded steel rods epoxied into structural hardwood members. Two test campaigns were carried out. In the first one 36 test specimens of Tali sawn timber (Erythropleum ivorense) with threaded steel rods were tested. Tests arose from the need to evaluate the behaviour of this type of joint because of its use in the construction of hollow bars spatial mesh of laminated timber. Three anchorage lengths and two bar diameters were tested. Moreover, two different thicknesses of the glue line, lmm and 3 mm, were investigated. In order to complement the first tests a new experimental study with 180 test specimens was carried out. In the second tests, double-sided pull-out tests of Spanish chestnut timber saw specimens were performed. Small diameter threaded steel rods (8, 10 y 12 mm) quality 8.8 (yield stress 640 MPa) were used. In the paper the most significant results of both test campaigns are summarized, as well as the comparison with the existing design formulae for of this type of union.
机译：本文总结了螺纹钢棒对结构硬木构件的试验结果的测试结果。进行了两个测试活动。在Tali Sawn木材（Erythropleum Ivorense）的第一个36个试验中，测试了螺纹钢杆。从需要评估这种类型的关节的行为，因为它在层压木材空间空间网的施工中使用的需要，因此可以从需求评估这种类型的关节的行为。测试了三个锚固长度和两个条直径。此外，研究了两种不同厚度的胶水线，LMM和3mm。为了补充第一次测试，进行了具有180个测试标本的新实验研究。在第二种测试中，进行了西班牙栗木锯样品的双面拉出试验。使用小直径螺纹钢棒（8,10 y 12 mm）质量8.8（屈服应力640MPa）。在论文中，总结了测试运动的最重要结果，以及与现有设计公式的比较。

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