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一、前言钢纤维砼的应用越来越广泛,但对其性能的研究还不是很深入、全面,尤其是对于轴向拉伸性能,仅有R.H.Evans、J.Kas-perkicwicz、S.P.Shah和小林一辅等人分别采用不同的试验方法得出了应力应变曲线的全过程,但他们并没有给出曲线的数学方程,也没有系统地研究曲线特征值的规律。国内也只有清华大学、大连理工大学和水利水电科学研究院等单位对轴拉性能作过研究。我们根据现有的试验机所允许的吨位(25吨)和净空条件,参考有关经验设计制
I. INTRODUCTION The application of steel fiber ray is more and more extensive, but the research on its performance is not very thorough and comprehensive, especially for the axial tensile performance, only RHEvans, J.Kas-perkicwicz, SPShah and Kobayashi. Auxiliary et al. used different test methods to obtain the whole process of the stress-strain curve. However, they did not give the mathematical equations of the curves, nor did they systematically study the law of the eigenvalues of the curves. In China, only Tsinghua University, Dalian University of Technology, and the Institute of Water Resources and Hydropower Research have conducted research on axial pull performance. Based on the tonnage (25 tons) and headroom conditions allowed by the existing testing machines, we refer to the relevant experience design system.