后张法预应力钢绞线伸长量计算与测量控制

Elongation calculation and measurement control of post-tensioned prestressed steel strand

通过对后张法预应力钢绞线伸长量的计算和测量方法的介绍,分析了实际伸长量测量数据处理中存在的两个误差,并对夹片回缩量和应力损失进行了讨论,从而证明后张法预应力技术是一种计算精度高、施工误差较小、应用广泛的预应力筋伸长量计算和测量方法。

Based on the introduction of elongation calculation and measurement methods of post - tensioned prestressed steel strand, analyzed two error of the actual elongation measurement data processing, and discussed the jaw shrank back and stress loss, thus proving method of post - tensioned prestressed technology is a kind of prestressed tendons elongation calculation and measurement methods with high precision, less construction errors, wide application.