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钢筋锚固这些傻傻分不清的字母

Lab:受拉钢筋基本锚固长度

LabE:抗震设计时受拉钢筋基本锚固长度

La:受拉钢筋锚固长度

LaE:受拉钢筋抗震锚固长度

Ll:纵向受拉钢筋搭接长度

LlE:纵向受拉钢筋搭接长度

钢筋基本锚固长度Lab  就是一个最基本的锚固值,和锚固长度长度La 的区别在于两者的条件不一样,锚固长度的条件比基本锚固的条件更多,初始条件时  两者是相等的,当达到某一条件时  锚固长度就会按相应规则乘一个系数,使之更精确

比如三级钢在一级抗震C25砼时的LaE、LabE均为46d,当钢筋直径大于25时,LaE=LabE*1.1=51d

对于什么时候用基本锚固长度,什么时候用锚固长度,本人搜遍整个网络,最有用的解释就一句话,“四级抗震时用基本锚固长度”。欢迎明白的大神进一步详解。

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