钢筋工程量计算悦酝再运源文艺副刊圆园园远援.pptx

计算右计算右图所示单梁图所示单梁钢筋工程量钢筋工程量(钢筋保护钢筋保护层厚度为层厚度为25mm)任任 务务给给 定定 条条 件件（工程量计算规则）（工程量计算规则）根据图纸逐一计算每根钢筋的长度根据图纸逐一计算每根钢筋的长度按不同钢筋种类、规格分别用设计按不同钢筋种类、规格分别用设计长度乘以单位重量以吨计算长度乘以单位重量以吨计算分析任务分析任务钢钢 筋筋 计计 算算 表表编号编号编号编号钢筋形状钢筋形状钢筋形状钢筋形状规格规格规格规格每根每根每根每根长度长度长度长度mm根根根根数数数数总长总长总长总长mmKg/mKg/m重量重量重量重量kgkg2523.8532222.9341220.88860.222合合 计计 、号钢筋长度号钢筋长度=梁长梁长-2-2钢筋保护层钢筋保护层+2+2半圆弯钩增加长度半圆弯钩增加长度 计计 算算 公公 式式半圆弯钩增加长度为半圆弯钩增加长度为6.25d，d为钢筋直径为钢筋直径 号钢筋号钢筋号弯起钢筋长度号弯起钢筋长度=梁长梁长-2-2钢筋保护层钢筋保护层+2+2弯起增加长度弯起增加长度 +2+2下弯长度下弯长度+2+2弯钩长度弯钩长度注意：注意：弯起增加长度（见表）弯起增加长度（见表）弯起弯起角度角度斜段斜段长度长度S S水平水平长度长度L L增加长度增加长度=S-L=S-L30302H2H1.732H1.732H0.268H0.268H45451414H1.414H1H1H0.414H0.414H60601.15H1.15H0.575H0.575H0.575H0.575HH=H=梁高梁高-2-2钢筋保护层钢筋保护层计计 算算 公公 式式号箍筋长度号箍筋长度L=L=（a+ba+b）2-2-经验系数经验系数其中其中a a、b b为梁截面尺寸。为梁截面尺寸。钢筋规格经验系数60.11180.082100.052120.023箍筋根数箍筋根数=（梁长（梁长-2-2钢筋保护层）钢筋保护层）/钢筋间距钢筋间距+1+1计计 算算 公公 式式单梁钢筋长度：单梁钢筋长度：1 1=6-0.0252+6.250.0252=6.26m=6-0.0252+6250.0252=6.26m2 2=6-0.0252+0.452+6.250.222=6-0.0252+0.452+6.250.222+0.414+0.414（0.6-0.02520.6-0.0252）2=7.58m2=7.58m3 3=6-0.0252+6.250.0122=6.10m=6-0.0252+6.250.0122=6.10m4 4=（0.3+0.60.3+0.6）2-0.111=1.689m2-0.111=1.689m =（6-0.0256-0.025）/0.25+1=24.8=25/0.25+1=24.8=25根根计计 算算 结结 果果编号编号编号编号钢筋形状钢筋形状钢筋形状钢筋形状规格规格规格规格每根每根每根每根长度长度长度长度mm根根根根数数数数总长总长总长总长mmKg/mKg/m重量重量重量重量kgkg256.26212.523.85348.24227.58215.162.93444.48126.1212.20.88810.8361.6892542.230.2229.37合合 计计112.92钢钢 筋筋 计计 算算 表表任任 务务 拓拓 展展 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