摘要
研究目的:本文研究荷载分散型锚索张拉过程中差异补偿荷载的确定理论和方法。研究结论:本文提出的荷载分散型锚索张拉时差异补偿荷载的广义确定计算方法,适用于各种荷载分散型锚索,具有较强的实用性;锚索在进行整体张拉之前,从底部较长的锚索单元开始对各单元锚筋依次进行补偿张拉后再一起张拉至设计张拉荷载,可以使各单元锚筋的受力均匀;在考虑各单元锚筋计算变形段摩阻的情况下,锚索张拉后作用于锚固段的锚固力更接近于设计锚固力。
Research purposes： The purposes are to do researches on the theory and method of determining differential compensative load for scatteredload anchor rope in the course of tension. Research conclusions：The method of generally determining differential compensative load for scatteredload anchor rope in the course of tension presented in this paper is suitable for all kinds of scatteredload anchor rope with a perfect applicability. Before the anchor rope is tensioned integrally, the anchor rods of each unit can be stressed evenly by tensioning all anchor rods to design tension loads after compensatively tensioning all anchor ropes of each unit in order from beginning with long anchor rope unit at bottom. The anchorage stress on the anchor zone after the anchor rope is tensioned is close to the design anchorage stress with consideration of the deformation of anchor rod of each unit under condition of friction.
出处
《铁道工程学报》
EI
北大核心
2008年第1期44-47,共4页
Journal of Railway Engineering Society
关键词
荷载分散型锚索
摩阻
差异补偿荷载
scatteredload anchor rope
friction
differential compensative load
