A PLASTICITY MODEL FOR HIGH STRENGTH CONCRETE

机译：高强度混凝土的塑性模型

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In this paper, a plasticity-based constitutive model was adopted and calibrated for high-strengthconcrete. The model is based on the Extended Leon Model (ELM) developed by Etse and Willam (1994)and is implemented for high strength concrete. The model was calibrated using biaxial test data for highstrength concrete conducted at Memorial University and triaxial test results conducted at University ofAlberta. The model was coded as a user defined subroutine into the commercially available softwareABAQUS. The results were then compared to the experimental data. Results of the verification indicatedthat the finite element model, generally speaking, is able to capture the stress-strain behaviour for thebiaxial and triaxial test specimens under different stress ratios and confining pressures.

机译：本文采用基于塑性的本构模型并对其进行高强度校准具体的。该模型基于由Etse和Willam（1994）开发的扩展Leon模型（ELM）并用于高强度混凝土。使用双轴测试数据对模型进行校准以得到较高的纪念大学进行的高强度混凝土测试以及美国大学进行的三轴测试结果艾伯塔省。该模型已作为用户定义的子例程编码到市售软件中 ABAQUS。然后将结果与实验数据进行比较。验证结果表明一般而言，有限元模型能够捕获应力应变行为。双轴和三轴试样在不同的应力比和围压下。

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《Canadian Society for Civil Engineering annual conference》|2009年|p.1-9|共9页
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A. Hussein; H. Marzouk;
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1. Damage-Plasticity Model for FRP-Confined Normal-Strength and High-Strength Concrete [J] . Ozbakkaloglu Togay, Gholampour Aliakbar, Lim Jian C. Journal of Composites for Construction . 2016,第6期

机译：FRP约束中强度和高强度混凝土的损伤-塑性模型
2. Modeling cover spalling behavior in high strength reinforced concrete columns using a plasticity-fracture model [J] . Piscesa Bambang, Attard Mario M., Prasetya Dwi, Engineering Structures . 2019,第OCTa1期

机译：使用可塑性-断裂模型对高强度钢筋混凝土柱的覆盖层剥落行为进行建模
3. Modeling cover spalling behavior in high strength reinforced concrete columns using a plasticity-fracture model [J] . Piscesa Bambang, Attard Mario M., Prasetya Dwi, Engineering Structures . 2019,第Octa1期

机译：使用可塑性裂缝模型在高强度钢筋混凝土柱中建模覆盖剥落行为
4. A PLASTICITY MODEL FOR HIGH STRENGTH CONCRETE [C] . A. Hussein, H. Marzouk Canadian Society for Civil Engineering annual conference . 2009

机译：高强度混凝土的可塑性模型
5. The Spread of Plasticity in High-Strength Reinforced Concrete Structural Walls with Boundary Elements. [D] . Egleston, Erik W. 2011

机译：可塑性在具有边界元素的高强度钢筋混凝土结构墙中的传播。
6. Practical Prediction Models of Tensile Strength and Reinforcement-Concrete Bond Strength of Low-Calcium Fly Ash Geopolymer Concrete [O] . Chenchen Luan, Qingyuan Wang, Fuhua Yang, 2021

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7. Mechanical properties of various concrete after high temperature exposure Mechanical property of various types of concrete after high temperature exposure is investigated. Considering compressive strength requirement for a vertical element in high rise building, concrete specimens with various design strengths of 35, 80, 100, and 150 MPa were tested. Particularly, the influence of incorporated steel fiber on fire resistance is of interest in this study. Experimental results show that the fire resistance depends on the design strength and steel fiber content. Normal strength concrete (NSC) of a design strength of 35 MPa or high performance concrete (HPC) of 80-100 MPa does not spall when exposed to 100-400 °C of temperature. However, an explosive spalling occurs at 300 °C when the HPCs contain 1 vol. of steel fiber. Ultra-high performance concrete (UHPC) of a design strength of 150 MPa and 1.5 vol. of steel fiber also shows dramatic spalling at 300 °C. The experimental results found in this study can contribute to a better understanding of the behaviors of HPC and UHPC under fire and the role of steel fiber on the fire resistance. [O] . 2017

机译：研究了高温暴露后各种混凝土高温曝光机械性能各种混凝土的机械性能。考虑到高层建筑中垂直元件的抗压强度要求，测试了35,80,100和150MPa各种设计强度的混凝土试样。特别是，在这项研究中，掺入钢纤维对耐火性的影响。实验结果表明，耐火性取决于设计强度和钢纤维含量。在暴露于100-400°C的温度时，80-100MPa的设计强度为35MPa或高性能混凝土（HPC）的正常强度混凝土（NSC）不会击落。然而，当HPC含有1体积的钢纤维的百分比时，爆炸性剥落发生在300℃。超高性能混凝土（UHPC）的设计强度为150 MPa和1.5 Vol。钢纤维的百分比也显示出300℃的剧烈剥落。本研究中发现的实验结果可以有助于更好地了解在火灾中的HPC和UHPC的行为以及钢纤维对耐火性的作用。
8. Application of a Global Plasticity Model to Determine the Ultimate Strength of a Reinforced Concrete Slab [R] . Hoffmann, A., Millard, A., Nahas, G. 1983

机译：应用全局塑性模型确定钢筋混凝土板的极限强度

A PLASTICITY MODEL FOR HIGH STRENGTH CONCRETE

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