预应力钢绞线在大直径管桩中的应用研究
China Concrete and Cement Products(2019)
Abstract
在现有大直接管桩桩型基础上,采用新型钢绞线和增大单股钢绞线直径的方法制作了5根大直径管桩,分别进行了抗疲劳性能、抗弯性能、预应力损失和握裹力试验研究.结果表明,所制作的5根管桩的预应力张拉值、预应力传递长度、开裂弯矩、破坏弯矩均满足相关规范要求.
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