EXPERIMENTAL STUDY ON FRICTION COEFFICIENT OF RETARD-BONDED PRESTRESSING STRAND
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摘要: 通过对直线布筋的12根缓粘结钢绞线和不同转角的15根缓粘结钢绞线的张拉试验研究,测得每根钢绞线的摩擦损失大小,根据钢绞线长度和转角大小,计算出在给定缓粘结剂配方下,缓粘结预应力钢绞线摩阻系数、的大小和离散程度,为缓粘结预应力混凝土结构设计与施工提供了参考。Abstract: Through experimental study of 12 retard-cohesive prestressing strands of straight line and 15 retard-cohesive prestressing strands of different angles,the friction loss of each strand is obtained.The friction coefficient and and the separate degree of the retard-cohesive prestressing strand have been figured out,which provides a reference for design and construction of retard-bonded prestressed concrete structures.
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Key words:
- retard-bonded /
- prestressing /
- friction coefficient /
- experimental study
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曾昭波.缓粘结预应力体系力学性能的试验研究:[学位论文].北京:中冶集团建筑研究总院,2005 [2] 林同炎,伯恩斯.预应力混凝土结构设计.路湛沁,译.北京:中国铁道出版社,1983:68-70 [3] 陶学康.无粘结预应力混凝土设计与施工.北京:地震出版社,1993:34-35 [4] JGJ 92-2004 无粘结预应力混凝土结构技术规程 [5] GB 50010-2002混凝土结构设计规范
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