Bending resistance of high performance concrete elements

机译：高性能混凝土元件的弯曲电阻

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Our previous research was focused on reactive powder concrete (RPC). In this article high performance concrete (HPC) will be analyzed. With high performance concrete both load bearing capacity and esthetics are combined to achieve superior structure. Due to lesser dimensions of walls and columns, space in high rise buildings is better utilized. With the combination of steel with high yield strength and ductility, difficulties with dense longitudinal and shear reinforcement are avoided. In this article current knowledge about the properties, technology and composition of high strength concrete is presented. Important parameters needed for the analysis of load-bearing (ultimate limit state), ductile and serviceable (serviceability limit state) reinforced concrete elements subjected to bending, with or without longitudinal force, are considered. These parameters are: design of compressive stress diagram, ductility, deflection, and crack width restraint. The impact of tensile, compression and shear reinforcement are analyzed. The results are compared with values for normal strength concrete. The use of high strength concrete is recommended.

机译：我们以前的研究集中在反应性粉末混凝土（RPC）上。在本文中，将分析高性能混凝土（HPC）。通过高性能混凝土，负载承载力和美学都是合并的，以实现卓越的结构。由于墙壁和柱的较小尺寸，高层建筑中的空间更好地利用。通过具有高屈服强度和延展性的钢的组合，避免了纵向和剪切钢筋的困难。在本文中，提出了关于高强度混凝土的性能，技术和组成的了解。考虑了分析负载（终极极限状态），延展性和可维修（可维修（可维修（可维修（可维修）（可维修（可维修的（可维修）（可带纵向力）的钢筋混凝土元件所需的重要参数。这些参数是：压缩应力图，延伸性，偏转和裂缝宽度约束的设计。分析了拉伸，压缩和剪切钢筋的影响。将结果与正常强度混凝土的值进行比较。建议使用高强度混凝土。

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《International Conference on High Performance Structures and Materials》|2008年||共8页
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作者
D. Mestrovic; L. Miculinic;
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中图分类 TB3-53;
关键词
High performance concrete; Bending resistance; Ductility;

机译：高性能混凝土;弯曲抗性;延展性;

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1. Experimental Research of the Durability, Crack Resistance of the Normal Sections of Bending Elements Produced of Rubber Concrete with Fiber and their Deformability [J] . Aleksei E. Polikutin, Yuri B. Potapov, Artem V. Levchenko Materials science forum . 2018,第PTa1期

机译：纤维橡胶混凝土弯曲元件正截面的耐久性，抗裂性及其变形性的试验研究
2. Bending behaviour of novel Textile Reinforced Concrete-foamed concrete (TRC-FC) sandwich elements [J] . Portal Natalie Williams, Flansbjer Mathias, Zandi Kamyab, Composite Structures . 2017,第octa期

机译：新型纤维增强混凝土发泡混凝土（TRC-FC）夹层构件的弯曲行为
3. Concrete Sandwich Elements with Fiber Plastic Reinforcement Bending Behavior of GRP-reinforced thin-walled Sandwich Elements [J] . Haffke Marcin Beton- und Stahlbetonbau . 2017,第7期

机译：混凝土三明治元素与纤维塑料加固弯曲行为GRP加固薄壁三明治元素
4. Bending resistance of high performance concrete elements [C] . D. Mestrovic, L. Miculinic International Conference on High Performance Structures and Materials . 2008

机译：高性能混凝土元件的弯曲电阻
5. Finite element modeling of full depth precast concrete bridge deck connections in bending and shear. [D] . James, Patrick H. 2012

机译：全深度预制混凝土桥面板弯曲和剪切连接的有限元建模。
6. New Model for Analytical Predictions on the Bending Capacity of Concrete Elements Reinforced with FRP Bars [O] . Kostiantyn Protchenko, Przemysław Leśniak, Elżbieta Szmigiera, 2021

机译：用FRP条加固混凝土元件弯曲能力的新模型
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. Using Shear Wave Velocity to Monitor the Curing Process of Self-Consolidating Concrete by Bender Element [R] . Zhu, J, Bates, B 2014

机译：用剪切波速检测自粘性混凝土的固化过程

Bending resistance of high performance concrete elements

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