Safety formats for non-linear analysis of concrete structures

Hendrik Schlune; Mario Plos; Kent Gylltoft

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Safety formats for non-linear analysis of concrete structures

机译：混凝土结构非线性分析的安全格式

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摘要

For realistic modelling of reinforced concrete structures, non-linear models are often inevitable, which raises the question of an appropriate safety format for non-linear analysis. This paper gives an overview of available safety formats and discusses their advantages and disadvantages. An analysis of available round robin tests and modelling competitions shows that current safety formats do not properly account for the modelling uncertainty of non-linear analysis. Based on this observation a new safety format was proposed which allows one to explicitly account for the modelling uncertainty. To avoid any interaction of the modelled response with the safety format, the mean in situ material parameters should be used in the non-linear analysis and a resistance safety factor is used to assure the intended reliability level. The application of the new safety format to beam sections loaded in bending showed that it offers a reliability level that is in good agreement with the target reliability.

机译：对于钢筋混凝土结构的逼真的建模，常常不可避免地要使用非线性模型，这引起了非线性分析的适当安全格式的问题。本文概述了可用的安全格式，并讨论了它们的优缺点。对可用轮循测试和建模竞赛的分析表明，当前的安全格式不能正确考虑非线性分析的建模不确定性。基于此观察结果，提出了一种新的安全格式，该格式可以明确说明建模不确定性。为了避免建模响应与安全格式之间的任何相互作用，应在非线性分析中使用平均原位材料参数，并使用电阻安全系数来确保预期的可靠性水平。将新的安全格式应用于弯曲加载的梁截面，表明其提供的可靠性水平与目标可靠性非常一致。

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来源
《Magazine of Concrete Research》 |2012年第7期|p.563-574|共12页
作者
Hendrik Schlune; Mario Plos; Kent Gylltoft;
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作者单位

Department of Civil and Environmental Engineering,Chalmers University of Technology, Gothenburg, Sweden;

Department of Civil and Environmental Engineering,Chalmers University of Technology, Gothenburg, Sweden;

Department of Civil and Environmental Engineering, Chalmers University of Technology, Gothenburg, Sweden;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
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机译：钢筋混凝土结构非线性有限元分析的安全格式：讨论，比较和建议
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3. Global safety format for non-linear analysis of reinforced concrete structures [J] . Diego Lorenzo Allaix, Vincenzo llario Carbone, Giuseppe Mancini Structural concrete . 2013,第1期

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5. Time-dependent non-linear analysis of prestressed concrete cable-stayed girders and other concrete structures. [D] . Khalil, Mahmoud S. A. 1979

机译：预应力混凝土斜拉梁和其他混凝土结构的时变非线性分析。
6. Use of Non-Linear Ultrasonic Techniques to Detect Cracks Due to Steel Corrosion in Reinforced Concrete Structures [O] . Miguel Ángel Climent, Marina Miró, Jesús Carbajo, 2019

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7. Non-linear finite element analysis of reinforced concrete panels and infilled frames under monotonic and cyclic loading. Structures under plane stress loading are analysed up to and beyond the peak load. Non-linear material properties including cracking, crushing and the non-linear behaviour at the interface of members are considered. [O] . Naji Jamal Hadi 1989

机译：单调和循环荷载下钢筋混凝土面板和填充框架的非线性有限元分析。分析在平面应力载荷下达到和超过峰值载荷的结构。考虑了非线性材料特性，包括开裂，压碎和构件界面处的非线性行为。

Safety formats for non-linear analysis of concrete structures

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