FIBER OPTIC SENSOR FOR TESTING OF HIGH STRENGTH CONCRETE IN TRIAXIAL COMPRESSION

机译：用于三轴压缩高强度混凝土测试的光纤传感器

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The dynamic range of the transducers available for measurement of circumferential strains are not large enough to measure the full extent of strains associated with lateral deformations of high strength concrete samples. Moreover, the current chain-type extensometers do not measure the circumferential strains accurately. The measured deformations include linear approximations to circumferential deformations. The work described here pertains to the design and development of a new fiber optic sensor for measurement of circumferential strains in concrete samples.

机译：可用于测量周向应变的换能器的动态范围不够大，无法测量与高强度混凝土样品的横向变形相关的全部应变。而且，当前的链式引伸计不能精确地测量圆周应变。测得的变形包括对圆周变形的线性近似。这里描述的工作涉及用于测量混凝土样品中的周向应变的新型光纤传感器的设计和开发。

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来源
《Strength theory : Application, development amp; prospects for 21st century》|1998年|1-6|共6页
会议地点 Xian(CN)
作者
Farhad ANSARI;
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作者单位

Dept. of Civil Materials Engineering, University of Illinois at Chicago, Chicago, Illinois, 60607-7023, USA;

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会议组织
原文格式 PDF
正文语种 eng
中图分类强度理论;
关键词
high strength concrete; confining pressure; constitutive relationships; circumferential strains; fiber optic sensors; triaxial state of stress; triaxial tests; stress-strain relationship; poisson's ratio;

机译：高强度混凝土围压；本构关系;圆周应变光纤传感器；三轴应力状态三轴试验；应力-应变关系；泊松比;
入库时间 2022-08-26 14:06:24

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专利

1. Circumferential strain measurement of high strength concrete in triaxial compression by fiber optic sensor [J] . Li QB., Ansari F. International Journal of Solids and Structures . 2001,第42a43期

机译：光纤传感器测量高强混凝土三轴压缩时的周向应变
2. Inverse identification of the material parameters of a nonlinear concrete constitutive model based on the triaxial compression strength testing [J] . Petr Král, Petr Hradil, Ji?í Kala Frattura e Integrita Strutturale . 2017,第39期

机译：基于三轴抗压强度试验的非线性混凝土本构模型材料参数的逆辨识
3. Inverse identification of the material parameters of a nonlinear concrete constitutive model based on the triaxial compression strength testing [J] . Petr Král, Petr Hradil, Ji?í Kala Frattura e Integrita Strutturale . 2016,第39期

机译：基于三轴抗压强度试验的非线性混凝土本构模型材料参数的逆辨识
4. FIBER OPTIC SENSOR FOR TESTING OF HIGH STRENGTH CONCRETE IN TRIAXIAL COMPRESSION [C] . International symposium on strength theory : Application, development prospects for 21st century . 1998

机译：用于测试高强度混凝土在三轴压缩中的光纤传感器
5. High-strength concrete beams reinforced with prestressed prisms and instrumented with fiber optic sensors. [D] . Chen, Benxian. 1994

机译：高强度混凝土梁用预应力棱镜加固，并装有光纤传感器。
6. High Strength Concrete Columns under Axial Compression Load: Hybrid Confinement Efficiency of High Strength Transverse Reinforcement and Steel Fibers [O] . Wisena Perceka, Wen-Cheng Liao, Yo-de Wang 2016

机译：轴向压缩载荷下的高强度混凝土柱：高强度横向钢筋与钢纤维的混合约束效率
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. Tables for Determining Isotropic and Anisotropic Shear Strengths from Consolidated Undrained Triaxial Compression Tests. [R] . johnson,stanley j. jeng,yu-shih 1976

机译：从合并不排水三轴压缩试验中确定各向同性和各向异性剪切强度的表。

FIBER OPTIC SENSOR FOR TESTING OF HIGH STRENGTH CONCRETE IN TRIAXIAL COMPRESSION

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