The theory and practical use show that multi-strands wire rope have more advantages than the single-strandwire rope on nor-rotation property, but have still more defects.
The calculation formula of torsion moment of multi-strands wire rope as loaded are deducted by internal force analysis of single-strandwire rope and multi-strands wire rope while working.
对普通单层股钢丝绳和多股钢丝绳工作时内部受力进行分析,推导出多股钢丝绳加载时扭转力矩的计算公式。
3
P For coiled prestressing tendons, after uncoiling a length of wire or strand the maximum bow height shall comply with en 10138 unless given in an appropriate European Technical Approval.