春觉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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ilosone
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