【摘要】 本文叙述了采用长线法测试钢绞线弹性模量,其方法简单易行,数据可靠,并能与试验梁和实梁制造同步进行,克服了短试件测试的许多困难,钢绞线电测应交修正系数由测试统计得到,不必利用电测钢绞线应力一一应变曲线,直接由电测应变乘以修正系数即可得到钢绞线的实际应变和应力及其变化值,使用方便可靠.更多还原

【Abstract】 This Paper Preseats the testing method of modulus of elasticity of prestressing strand using long speciment.This method can be carried out slmultaneously.with making test beam in laboratory or bridge girder in factory and overcome many difficulties using short seciment.The testing result is accurate and reliable The modified coefficient of strand modifying the skew strain to axial strain can be used to easily calalate the axial stress of strand.Mmodified resulls of the testing beam using this coefficient are in agreement with the theorical results.更多还原