朱学佳1,曹志翔1,2,曹秀丽1
不同地质条件对输电铁塔塔基纤维增强聚合物筋混凝土粘 结性能的影响
朱学佳1,曹志翔1,2,曹秀丽1
摘 要:通过试验,研究了酸环境、碱环境、盐环境和湿环境四种不同地质条件对纤维增强聚合物筋粘结强度的影响。研究结果表明,酸性环境条件下纤维增强聚合物筋混凝土粘结强度有所降低,而湿环境、碱环境与盐环境下纤维增强聚合物筋混凝土粘结强度有一定程度的提高。输电铁塔混凝土塔基破坏是输电塔线体系破坏的一种形式,局部采用纤维增强聚合物筋代替钢筋有较好的效果。
Abstract: Through the tests, the effects of different geological conditions such as acid, alkali, salt and wet environment on the bond strength of fiber reinforced polymer bars are studied. The research results show that the bonding strength of fiber reinforced polymer bars is a bit decreased under acid environment, however, it is increased under alkali, salt and wet environment. The damage of concrete tower foundation of transmission tower is a kind of damages of transmission tower line system, which can be improved by locally using fiber reinforced polymer bars substituting reinforcements.
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