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首页> 外文会议>7th World Conference on Timber Engineering, WCTE 2002 Vol.1, Aug 12-15, 2002, Shah Alam, Malaysia >FE MODELLING OF OSB WEBBED TIMBER I-BEAMS WITH OPENINGS
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FE MODELLING OF OSB WEBBED TIMBER I-BEAMS WITH OPENINGS

机译：带开口的OSB编织木工字梁的有限元建模

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摘要

OSB webbed I-beams are a relatively new application for floor joists in Europe, although they have been extensively used in North America in both roof and floor applications. Openings in the web that allow the passage of electrical wires and ventilation ducks weaken the joist locally and cause different failure patterns dependent upon size, location, shape of the opening and interaction between openings. In this paper, a non-linear finite element model, incorporating orthotropic and non-linear material behaviour, has been developed to simulate the structural performance of OSB webbed timber I-beams with openings. Structural tests of the I-beams with both circular and square openings were undertaken to validate the corresponding numerical models. Buckling of the web was also taken into consideration in the modelling based on observations of the experimental work. The effects of openings on structural behaviour of these beams are discussed and the correlation between experimental behaviour and finite element simulations is presented.
机译：OSB工字形工字梁是欧洲地板托梁的一种较新的应用，尽管它们在北美已在屋顶和地板应用中广泛使用。腹板上允许电线和通风鸭通过的开口会局部削弱托梁，并根据开口的大小，位置，形状和开口之间的相互作用而导致不同的失效模式。在本文中，已经开发了一种非线性有限元模型，该模型结合了正交各向异性和非线性材料特性，来模拟带开口的OSB蹼状工字钢的结构性能。对具有圆形和方形开口的工字梁进行了结构测试，以验证相应的数值模型。基于对实验工作的观察，在建模中还考虑了网的屈曲。讨论了开口对这些梁的结构行为的影响，并给出了实验行为与有限元模拟之间的关系。

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