锚拉杆张拉力和摩阻力的现场实验研究与分析

The Experimental Research and Analysis of the Friction Forces of Earth Acting on the Anchor Bar and Tension

对锚拉桥台锚拉杆进行了２０小时的现场试验，获得了大量实验数据，对张拉后锚拉杆的张拉力与长度、时间、温度和焊接接头的关系以及土对锚拉杆的摩阻力变化及分布规律作了分析与研究。研究结果对指导该类构筑物的设计与施工有着重要的理论与工程实用价值。

Friction forces of earth acting on the anchor bar of bridge dais have been measured as long as 20 hours on the spot. Many experimental data have been obtained in this testing. The variation regularity of the tension with length, time, temperature and weld joints after tensing, as well as the changes and distribution of the friction forces of earth have been researched and analyzed. The results of this research and testing have important theoretical and practical values for directing to the design and construction of similar structures.