| 钢筋混凝土无铰拱非线性平面有限元分析 |
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| 引用本文： | 郑振飞,陈宝春. 钢筋混凝土无铰拱非线性平面有限元分析[J]. 工程力学, 1988, 0(4) |
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| 作者姓名： | 郑振飞 陈宝春 |
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| 作者单位： | 福州大学土建系，福州大学土建系 |
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| 摘 要： | 本文以有限元分析为基础,提出一个钢筋混凝土无铰拱的非线性计算方法。这个方法,采用平面分离式单元.考虑了材料的非线性性能和裂缝对结构受力的影响,提出了无铰拱破坏的判断条件。本文编写了相应的电算程序NFEHA86.通过电算,能够给出钢筋混凝土无铰拱受力全过程的位移、应力、应变、裂缝情况和破坏荷载。电算结果和实测结果吻合较好。
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NONLINEAR PLANAR FINITE ELEMENT ANALYSIS OF RC HINGELESS ARCHS |
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| Abstract: | Based on the finite element principle, a method for nonlinear analysis of the RC hingeless arches is Presented. With this method, a model simulating discrete planar elements has been used. Nonlinear material properties and the influnce of prograssive cracking on a structure are taken into account. Criteria of failure of such a structure have been investegated. A program NFEHA86 based on this method has made possible the determination of displacements, stresses, strains and cracks of a RC hingeless arch throughout the loading progress. The results obtained by this method agree fairly well with the experimental ones. |
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