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在地震作用下,短柱常因刚度较大、变形较小而率先受到破坏。近三十年虽已有大量研究,但最近一些大地震的震灾表明,短柱研究的必要性并未过时。本文以德国达姆施塔特工大(THD)所做的12个短柱试验为基础,并归纳了其它研究者的约SO个试验数据,分析了主要参数对短柱极限承载能力的影响,提出了建议的计算模型。本文建议的是弯曲与行架混合模型,考虑了弯和剪以及钢筋的粘结滑移。计算与试验符合良好。
Under the action of earthquakes, short columns are often first destroyed due to their large stiffness and small deformation. Although there have been a lot of studies in recent 30 years, the recent earthquake disasters of some major earthquakes indicate that the necessity of short column research is not out of date. This paper is based on the 12 short column tests made by the University of Darmstadt, Germany (THD), and summarizes the SO data of other researchers. The effect of the main parameters on the ultimate bearing capacity of the short column is analyzed. The proposed calculation model. This paper proposes a bending and frame hybrid model that considers bending and shearing as well as the bond-slip of rebar. The calculation and test are in good agreement.