钢筋锚固长度规范表
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2023年2月25日发(作者：护旗手).
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受拉钢筋抗震锚固长度一览表
本工程为二级抗震结构，非特殊环境，常用受拉钢筋锚固长度如下：
钢筋种类砼等级钢筋直径锚固长度钢筋种类砼等级钢筋直径锚固长度
HRB400C40
12mm400.2mm
HRB400C35
12mm441.6mm
14mm466.9mm14mm515.2mm
16mm533.6mm16mm588.8mm
18mm600.3mm18mm662.4mm
20mm667mm20mm736mm
22mm
733.7mm
22mm
809.6mm
25mm
833.75mm
25mm
920mm
HRB400C30
12mm483mm
HRB400C25
12mm552mm
14mm563.5mm14mm644mm
16mm644mm16mm736mm
18mm724.5mm18mm828mm
20mm805mm20mm920mm
22mm
885.5mm
22mm
1012mm
25mm
1006.25mm
25mm
1150mm
HPB300C40
12mm345mm
HPB300C35
12mm386.4mm
14mm402.5mm14mm450.8mm
16mm460mm16mm515.2mm
18mm517.5mm18mm579.6mm
20mm575mm20mm644mm
22mm
632.5mm
22mm
708.4mm
25mm
718.75mm
25mm
805mm
HPB300C30
12mm414mm
HPB300C25
12mm469.2mm
14mm483mm14mm547.4mm
16mm552mm16mm625.6mm
18mm621mm18mm703.8mm
20mm690mm20mm782mm
22mm
759mm
22mm
860.2mm
25mm
862.5mm
25mm
977.5mm
注：
1、计算式：LaE=ζaE×ζa×lab(LaE=ζaE×La，La=ζa×lab)
2、其中ζa为受拉钢筋锚固长度修正系数，ζaE为抗震锚固长度修正系数。
3、以上数据仅供参考。