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首页> 外文期刊>Proceedings of the Institution of Civil Engineers >Seismic behaviour of Taiwanese timber complex brackets subjected to out-of-plane loading
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Seismic behaviour of Taiwanese timber complex brackets subjected to out-of-plane loading

机译：台湾木材复杂括号的地震行为进行外平面负荷

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摘要

The Taiwanese Dieh-Dou-type complex brackets used in traditional timber buildings are commonly believed to sustain both in-plane and out-of-plane loadings of the main frame during seismic events. From past statistical investigation, single-tier, double-tier and triple-tier asymmetric bracket designs were chosen as test subjects. A series of quasi-static cyclic tests was applied to full-scale specimens to evaluate their seismic behaviour when subjected to out-of-plane loading. The test specimens generally exhibited significantly higher resistance when all horizontal members sustained compression. The Gong members functioned like braces and subsequently led to enhanced resistance. However, when the global structure was subjected to tension, the joints of Gong, purlin support and purlin members were more likely to be pulled out. The counter-resistance force observed from the tension side resembled that of rigid-body rotation. The triple-tier specimen sustained more serious damage than the other two types, where the middle Dou member was more prone to split due to stress concentration. The proposed bi-linear semi-rigid spring models were in good agreement with the test results, so the general assumptions made were valid.
机译：传统木材建筑中使用的台湾型Dieh-Dou型复杂支架通常被认为在地震事件期间维持主框架的平面内和平面外载荷。从过去的统计调查中，选择单层，双层和三层不对称支架设计作为测试对象。将一系列准静态循环试验应用于全尺寸标本，以在受到平面外负载时评估它们的地震行为。当所有水平构件持续压缩时，试样通常在耐压时显着更高。锣构件像括号一样运行，随后导致增强电阻。然而，当全局结构受到张力时，更容易被拉出龚，酱载体和胶林构件的关节。从张力侧观察到的反电阻类似于刚体旋转的反阻力。三层试样比其他两种类型持续严重损坏，其中中窦构件因应力集中而易于分裂。建议的双线性半刚性弹簧模型与测试结果吻合良好，因此所取得的一般假设有效。

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