钢筋弯曲调整值弯曲角度3004506009001350调整值0.35d0.5d0.85d2d2.5d注:弯曲调整值为扣减常用弯钩增加长度:半圆钩:6.25d直钩:3.5d斜钩:4.9d注:直线段通长一律按3d计弯起钢筋斜长调整系数:钢筋长度弯起角度300450600斜长调整系数斜边长度S2.00h1.414h1.135h底边长度L1.732h1.00h0.557h增加长度S-L0.268h0.414h0.578h注:1、一般梁高H<300mm时,α为300;300mmH700mm时,α为450;H>700时,α为600;2、表中h=梁高度-保护层厚度×2-钢筋直径箍筋弯钩长与弯曲调整值的差值:箍筋周长量度方法箍筋直径φ4~φ5φ6φ8φ10~φ8量外包尺寸40mm50mm60mm70mm量内包尺寸80mm10mm120mm150~170mm钢筋每个弯钩增加长度(mm)弯钩直径D(mm)受力钢筋端部弯钩箍筋端部弯钩1800弯钩L=3d.D=2.5dΔL1=6.25d1350弯钩L=5d.D=4dΔL2=7.89d900弯钩L=5d.D=5dΔL5=6.21d1350弯钩L=10d.D=4dΔL6=12.89d1800弯钩L=5d.D=2.5dΔL7=8.25d650505077506.5505150845485063501036610637962129831275957515599148811087180116161001269920613218113142______20125158______22138174______25156197______28175221______32200252______