图集16G1011 受拉钢筋锚固长度.pdf

受拉钢筋锚固长度l

a

混凝土强度等级

钢筋种类C20C25C30C35C40C45C50C55

≤≤＞≤＞≤＞≤＞≤＞≤＞≤＞

d25d25d25d25d25d25d25d25d25d25d25d25d25d25d25

HPB30039d34d—30d—28d—25d—24d—23d—22d—

HRB335、HRBF33538d33d—29d—27d—25d—23d—22d21d—

HRB400、HRBF400

—40d44d35d39d32d35d29d32d28d31d27d30d26d29d

RRB400

HRB500、HRBF500—48d53d43d47d39d43d36d40d34d37d32d35d31d34d

受拉钢筋抗震锚固长度l

aE

混凝土强度等级

钢筋种类及抗震等

C20C25C30C35C40C45C50C55

级

≤≤＞≤＞≤＞≤＞≤＞≤＞≤＞

d25d25d25d25d25d25d25d25d25d25d25d25d25d25d25

一、二级45d39d—35d—32d—29d—28d—26d—25d—

HPB300

三级41d36d—32d—29d—26d—25d—24d—23d—

HRB335

一、二级44d38d—33d—32d—29d—26d—25d—24d—

HRBF33

5三级40d35d—30d—28d—