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Earthquake-resistant Design Of Indeterminate Reinforced-concrete Slender column Elements

机译：不确定钢筋混凝土细长柱单元的抗震设计

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摘要

The work extends the range of application of previous work, which had been concerned with the earthquake-resistant design of reinforced concrete short column elements (elements with a shear span-to-depth ratio smaller than 2), by means of an experimental investigation into the behaviour of slender column elements (elements with a shear span-to-depth ratio larger than 2). As for the previous study, the present investigation of slender column elements is based on the use of indeterminate specimens (which represent more realistically elements in a building than their determinate counterparts) designed by using two different methods: the truss analogy method, as applied by current codes of practice, and the compressive-force path method. The results obtained indicated that the unexpected, premature brittle mode of failure observed in short column elements in the region of the point of inflection also characterises slender column elements when designed to current code provisions. In contrast, those elements designed to the compressive-force path method are found to satisfy the performance requirements of current codes for both strength and ductility.
机译：这项工作扩展了先前工作的应用范围，该工作涉及对钢筋混凝土短柱单元（剪切跨度与深度之比小于2的元素）的抗震设计，并通过实验研究细长柱单元（剪切跨度与深度之比大于2的元素）的行为。与之前的研究一样，目前对细长柱单元的研究基于以下不确定性标本的使用（这些不确定性标本比确定的对应物更能代表建筑物中的实际元素）是通过两种不同的方法设计的：桁架类比法当前的操作规范，以及压缩力路径法。获得的结果表明，在按照现行法规进行设计时，在拐点区域的短圆柱单元中观察到的意外的，过早的脆性破坏模式也表征了细长的圆柱单元。相反，发现设计用于压缩力路径方法的那些元素可以满足当前规范对强度和延展性的性能要求。

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