钢筋和预应力混凝土柱截面分析的自动算法

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2022-05-01 DOI:10.2478/jaes-2022-0010
B. Kovács, Traian-Nicu Toader
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引用次数: 0

摘要

摘要本文旨在描述一种用于钢筋混凝土和/或预应力混凝土截面分析的自动计算算法。截面分析包括生成两条特征曲线:弯矩-曲率(M-1/r)和轴向力-弯矩(N-M),使用的数学方程简要描述了算法的计算方法和实现。为了验证计算算法,将结果与实验室实验测试的结果进行了比较,并与基于有限元法的商业计算软件进行的数值模拟进行了比较。该算法是用MATLAB编程语言编写的。与实验结果相比,用所开发的算法获得的结果显示出保守的结果。此外,与基于纤维的横截面非线性分析相比,使用粘结钢筋束的预应力混凝土柱的抗弯矩估计值至少为10%。
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An Automated Algorithm for the Sectional Analysis of Reinforced and Prestressed Concrete Columns
Abstract This article aims to describe an automatic calculation algorithm developed for the analysis of reinforced concrete and / or prestressed concrete cross sections. The sectional analysis consists in the generation of two characteristic curves: the bending moment - curvature (M-1/r) and the axial force - bending moment (N-M), the calculation approach and the implementation of the algorithm being briefly described by the mathematical equations used. To verify the calculation algorithm, the results were compared with those obtained from experimental tests in the laboratory but also with numerical simulations using commercial computational software based on the finite element method (FEM). The algorithm was written in the MATLAB programming language. The results obtained with the developed algorithm show conservative results when compared to the experimental ones. Moreover, the bending moment resistance for prestressed concrete columns using bonded tendons is better estimated with at least 10% when compared with the one obtained with a fiber based cross section nonlinear analyses.
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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