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首页> 外文会议>Fifth ACI International Conference on Innovations in Design with Emphasis on Seismic, Wind, and Environmental Loading; Quality Control and Innovations in Materials/Hot-Weather Concreting Dec, 2002 Cancun, Mexico >Three Misunderstandings in Uniaxial Tension Test of Concrete
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Three Misunderstandings in Uniaxial Tension Test of Concrete

机译：混凝土单轴拉伸试验中的三个误区

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摘要

The best way to investigate the tension softening process is by applying a uniaxial tension force directly on a concrete specimen, because it can measure both tensile strength and the tension softening curve from an identical specimen. However, no standard tests have been adopted to provide a direct measurement of the tension softening curves of concrete. There are three misunderstandings in investigating the tension softening process, concerning the effect of secondary flexure, boundary conditions and notches. Because of these, many inadequate test procedures were proposed until recently. In this paper, the misunderstandings are discussed and clarified in detail with theoretical and experimental considerations. A test procedure for the uniaxial tension test of concrete is proposed with successful test results.
机译：研究拉伸软化过程的最佳方法是直接在混凝土试样上施加单轴拉伸力，因为它可以测量同一试样的拉伸强度和拉伸软化曲线。但是，没有采用标准测试来直接测量混凝土的拉伸软化曲线。在研究拉伸软化过程时，存在三个误解，涉及二次弯曲，边界条件和缺口的影响。因此，直到最近才提出了许多不充分的测试程序。本文从理论和实验的角度对误解进行了详细讨论和澄清。提出了混凝土单轴拉伸试验的试验程序，并取得了成功的试验结果。

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