公路桥梁钢筋长度计算

1、字体颜色绿色蓝色粉红色红色其它含义固定值应填项中间结果最终结果表头文字等钢筋相关数据(新规范)公称直径重量计算直径螺纹钢外径(mm)面积受拉钢筋弯钩增长值(cm)构造钢筋弯钩增长值(cm)标准弯折修正值(cm)公称直径R235HRB335HRB400KL400R235螺纹钢筋光圆钢筋螺纹钢筋(mm)(kg/m)(mm)老规范新规范cm290度135度180度90度135度90度135度90度135度90度135度180度90度45度90度45度90度(mm)60.22267.00.28278.36.58.87.38.0680.39589.30.502710.27.36.811.18.711.8

2、9.711.89.710.08.08.08.08100.6171011.311.60.785412.89.18.513.910.914.712.114.712.110.08.08.010.0-0.8-1.310120.8881213.013.91.131015.310.910.216.713.117.714.517.714.510.08.08.010.0-0.5-0.9-0.5-1.512141.211415.516.21.539417.912.711.919.515.220.616.920.616.912.010.010.012.0-0.6-1.1-0.6-1.814161.581617.5

3、18.42.010620.414.613.622.317.423.519.323.519.312.010.010.012.0-0.7-1.2-0.7-2.116182.001820.020.52.544723.016.415.325.019.626.521.826.521.812.010.010.012.0-0.8-1.4-0.8-2.318202.472022.022.73.141625.518.217.027.821.829.424.229.424.212.010.010.015.0-0.9-1.5-0.9-2.620222.982224.025.13.801330.624.032.426

4、.632.426.615.0-0.9-1.7-0.9-2.822253.852527.028.44.908734.827.236.830.236.830.215.0-1.1-1.9-1.1-3.225284.832830.031.66.157538.930.541.233.941.233.920.0-1.2-2.1-1.2-3.628326.313234.535.88.042544.534.847.138.747.138.720.0-1.4-2.4-1.4-4.132367.993639.540.210.178850.139.253.043.553.043.520.0-1.5-2.7-1.5-

5、4.636409.874043.545.112.566455.643.658.848.458.848.422.0-1.7-3.0-1.7-5.2405015.425054.919.640069.654.573.660.522.050钢铰线相关数据箍筋弯钩长度表7.7公称直径重量面积箍筋直径弯钩长(cm)46.8802.68804.52-704.52(mm)(kg/m)cm2(mm)R235HRB3359.3612.70.7756101012.50.730.938131323.415.21.091.3910161615.241.1021.41218201603注：参考公路桥涵设计手册基本资料P8

6、36表4-281注：弯钩的弯曲直径不应小于被箍的受力主筋的直径。对于抗扭的箍筋，两弯钩之间应设30倍箍筋直径长度的绑扎段。1451.672.193.225107.49普通钢筋和预应力直线形钢筋最小混凝土保护层厚度（m m ）普普通通钢钢筋筋和和预预应应力力直直线线形形钢钢筋筋最最小小混混凝凝土土保保护护层层厚厚度度（钢钢筋筋外外缘缘或或管管道道外外缘缘只只混混凝凝土土表表面面的的距距离离）不不应应小小于于钢钢筋筋公公称称直直径径，后后张张法法构构件件预预应应力力直直线线形形钢钢筋筋不不应应小小于于其其管管道道直直径径的的1/21/2，且且应应符符合合下下表表的的规规定定。序号构件类别环境条件1

7、基础、桩基承台（1）基坑地面有垫层或侧面有模板（受力主筋） （2）基坑地面无垫层或侧面无模板（受力主筋）4060507560852墩台身、挡土结构、涵洞、梁、板、拱圈、拱上建筑（受力主筋）3040453人行道构件、栏杆（受力主筋）2025304箍筋2025305缘石、中央分隔带、护栏等行车道构件3040456收缩、温度、分布、防裂等表层钢筋152025注：对于环氧树脂涂层钢筋，可按环境类别取用。钢筋最小锚固长度la(mm)钢筋种类R235HRB335HRB400,KL400混凝土强度等级C20C25C30C40C20C25C30C40C20C25C30C40受压钢筋（直端）40d35d30d2

8、5d35d30d25d20d40d35d30d25d受拉钢筋直端-40d35d30d25d45d40d35d30d弯钩端35d30d25d20d30d25d25d20d35d30d30d25d注：（1）d为钢筋直径； （2）对于受压束筋和等代直径de28mm的受拉束筋的锚固长度，应以等代直径按表值确定，束筋的各单根钢筋在同一锚固终点截断；对于等代直径de28mm的受拉束筋，束筋内各单根钢筋，应自锚固起点开始，以表内规定的单根钢筋的锚固长度的1.3倍，呈阶梯形逐根延伸后截断，即自锚固起点开始，第一根延伸1.3倍单根钢筋的锚固长度，第二根延伸2.6倍单根钢筋的锚固长度，第三根延伸3.9倍单根钢筋的

9、锚固长度； （3）采用环氧树脂涂层钢筋时，受拉钢筋最小锚固长度应增加25； （4）当混凝土在凝固过程中易受扰动时，锚固长度应增加25。预应力钢筋锚固长度la(mm)预应力钢筋种类混凝土强度等级C40C45C50C55C60C65钢绞线1*2，1*3，fpd=1170MPa115d110d105d100d95d90d1*7，fpd=1260MPa130d125d120d115d110d105d螺旋肋钢丝，fpd=1200MPa95d90d85d83d80d80d刻痕钢丝，fpd=1070MPa125d115d110d105d103d100d注：（1）当采用骤然放松预应力钢筋的施工工艺时，锚固长度

10、应从离构件末端0.25ltr处开始，ltr为预应力钢筋预应力传递长度，按本规范表6.1.7采用； （2）当预应力钢筋的抗拉强度设计值fpd与本表值不同时，其锚固长度应根据表值按强度比例增减。受拉钢筋绑扎接头搭接长度钢筋混凝土强度等级C20C25C25R23535d30d25dHRB33545d40d35dHRB400,KL400-50d45d注：（1）当带肋钢筋直径d大于25mm时，其受拉钢筋的搭接长度应按表值增加5d采用，当带肋钢筋直径小于25mm时，搭接长度可按表值减少5d采用； （2）当混凝土在凝固过程中受力钢筋易受扰动时，其搭接长度应增加5d； （3）在任何情况下，受拉钢筋的搭接长度不

11、应小于300mm，受压钢筋的搭接长度不应小于200mm； （4）环氧树脂涂层钢筋的绑扎接头搭接长度，受拉钢筋按表值的1.5倍采用； （5）受拉区段内，R235钢筋绑扎接头的末端应做成弯钩，HRB335、HRB400、KL400钢筋的末端可不做成弯钩。受拉钢筋端部弯钩长度计算钢筋直径 钢筋等级 弯曲角度弯曲直径弯曲长度 平直段最小长度弯钩总长8190202.28.010.212.810190252.710.012.712.712190303.312.015.312.814190353.814.017.812.716190404.416.020.412.818190454.918.022.912.

12、720190505.520.025.512.812.7681135203.34.07.39.1101135254.15.09.19.1121135304.96.010.99.1141135355.87.012.89.1161135406.68.014.69.1181135457.49.016.49.1201135508.210.018.29.181180204.42.46.88.5101180255.53.08.58.5121180306.63.610.28.5141180357.74.211.98.5161180408.84.813.68.5181180459.95.415.38.52011

13、805011.06.017.08.562135243.53.06.510.882135324.74.08.710.9102135405.95.010.910.9122135487.16.013.110.9142135568.27.015.210.9162135649.48.017.410.91821357210.69.019.610.92021358011.810.021.810.92221358813.011.024.010.925213510014.712.527.210.928213511216.514.030.510.932213512818.816.034.810.936213514

14、421.218.039.210.940213516023.620.043.610.950213520029.525.054.510.910.896290242.46.08.414.08290323.18.011.113.910290403.910.013.913.912290484.712.016.713.914290565.514.019.513.916290646.316.022.313.918290727.118.025.113.920290807.920.027.914.022290888.622.030.613.9252901009.825.034.813.92829011211.0

15、28.039.013.93229012812.632.044.613.93629014414.136.050.113.94029016015.740.055.713.95029020019.650.069.613.913.9163135304.23.07.212.083135405.74.09.712.1103135507.15.012.112.1123135608.56.014.512.1143135709.97.016.912.11631358011.38.019.312.11831359012.79.021.712.120313510014.110.024.112.12231351101

16、5.611.026.612.125313512517.712.530.212.128313514019.814.033.812.132313516022.616.038.612.136313518025.418.043.412.140313520028.320.048.312.150313525035.325.060.312.112.096390302.86.08.814.78390403.88.011.814.810390504.710.014.714.712390605.712.017.714.814390706.614.020.614.716390807.516.023.514.7183

17、90908.518.026.514.7203901009.420.029.414.72239011010.422.032.414.72539012511.825.036.814.72839014013.228.041.214.73239016015.132.047.114.73639018017.036.053.014.74039020018.840.058.814.75039025023.650.073.614.714.7181135203.38.011.312.0101135254.110.014.115.0121135304.912.016.917.062135243.56.09.510

18、.082135324.78.012.713.0102135405.910.015.916.0122135487.112.019.120.0螺旋筋长度计算(cm)附注：本表中所列的数值是根据以下的公式来进行计算：l=2*(*D+30*d+8.5*d)+L/s*(*D)2+s2柱径计算长度螺径螺旋筋直径螺距顶部和底部螺旋筋长每延厘米螺旋筋长总长100910.810633.37028.6063493.9701502500133.50.815897.89327.97870842.89312090145.250.815971.72130.4383711.141130100113.50.815774.74

19、223.7923153.9421403180123.50.815837.57325.88583151.873150100133.50.810900.40541.9525095.605160100143.50.810963.23745.0935472.537180100163.50.8101088.90151.3756226.401100153.50.8101026.06948.2345849.46930140.85149.5658.853415.15511.512.0006.56.000式中，8.5d是按新规范计算的弯钩长度，30d是锚固长度。56657.810002310.00000290.

20、50000145.25000字体颜色绿色蓝色粉红色红色其它色含义固定值填写项目中间结果最终结果表头文字等箍筋长度计算编号各边端已知结果中间结果箍筋直径 钢筋直径 中心距离 两筋夹角弯折角度边长总长度(不折减)总长度(折减)箍筋外径钢筋外径两筋中心距切线长弧长长度折减1长边一端1020152.8729090156.1548.6547.210.022.01.601.601.260.34另一端20909022.01.601.601.260.34短边一端201109090113.222.01.601.601.260.34另一端20909022.01.601.601.260.34弯钩一端55.0另一端1

21、长边一端10884909085.8465.2464.410.08.00.900.900.710.19另一端890908.00.900.900.710.19短边一端81409090141.88.00.900.900.710.19另一端890908.00.900.900.710.19弯钩一端55.0另一端字体颜色绿色蓝色粉红色红色其它色含义固定值填写项目中间结果最终结果表头文字等钢筋长度计算备注钢筋编号已知结果中间结果箍筋直径 被箍筋径 中心距离内外箍搭接长度 箍筋内径 总长度箍筋外径 被箍外径 增加长度1m墩柱220208812283.6284.622.022.04.44202097222101

22、.4340.622.022.04.4520208822292.4312.322.022.04.41m台柱222228812483.2285.424.024.04.84222296224100.8340.724.024.04.8522228822492.8315.524.024.04.81.2m墩柱22020108122103.6347.522.022.04.442020119222123.4409.722.022.04.452020108222112.4375.122.022.04.41.2m台柱22222108124103.2348.224.024.04.842222118224122.84

23、09.824.024.04.852222108224112.8378.424.024.04.81.3m墩柱22020118122113.6378.922.022.04.442020130222134.4444.222.022.04.452020118222122.4406.522.022.04.41.2m墩桩3222210012595.2324.124.024.04.86222294.46222599.3337.024.024.04.81.5m墩桩32222130125125.2418.324.024.04.862222124.462225129.3431.224.024.04.81.2m台桩

24、3252510012594.6322.227.027.05.46252594.40822599.8338.527.027.05.41.5m台桩32525130125124.6416.427.027.05.462525119.848225125.2418.327.027.05.41.2m肋台桩3252510012594.6322.227.027.05.462525124.002225129.4431.527.027.05.41.5m肋台桩32525130125124.6416.427.027.05.462525154.003225159.4525.827.027.05.4字体颜色绿色蓝色粉红色红

25、色其它色含义固定值填写项目中间结果最终结果表头文字等钢筋长度计算钢筋编号端已知结果中间结果钢筋直径 被箍钢筋 中心距离 两筋夹角 弯钩角度边长总长度钢筋外径 被箍外径 增加长度 弯钩长承台1一端22225609090564.8583.424.024.02.49.3另一端22909024.02.49.32一端22222109090214.8233.424.024.02.49.3另一端22909024.02.49.33一端12122109090212.6222.813.313.31.35.1另一端12909013.31.35.14一端12221409090143.8154.013.324.01.9

26、5.1另一端22909024.01.95.15一端12225609090563.8574.013.324.01.95.1另一端22909024.01.95.16一端22221087.572490901092.41111.024.024.02.49.3另一端22909024.02.49.37一端12229709090973.8984.013.324.01.95.1另一端22909024.01.95.19一端16221409090144.2157.617.524.02.16.7另一端22909024.02.16.71一端25201350901355.01355.027.022.02.5另一端209

27、022.02.51一端121030459033.243.413.310.01.65.1另一端10459010.01.65.1钢筋折减计算1端已知结果中间结果钢筋直径被箍直径两筋夹角 弯折角度长度折减箍筋外径钢筋外径 两筋中心距切线长弧长长度折减一端222290901.0024.024.02.402.401.880.5另一端22909024.02.402.401.880.5一端252590901.2027.027.02.702.702.120.6另一端25909027.02.702.702.120.6钢筋折减计算已知结果中间结果钢筋等级 钢筋直径弯折角度长度折减 钢筋外径弯心外径两筋中心距切线长

28、弧长232451.334.51207.562.1025.7224.3930m盖梁编号直径长度根数共长单位重共重总重长度变化值变化率分级长度级差备注(mm)(cm)(m)(kg/m)(kg)(kg)130120.0923100.92353741244.9#REF!9&161532436.71.57857.9586&1230844123.40.888109.6212628894115.6102.77103263921277.90.617788.51349726456147.891.28344196674.2416.082732876.447.110125810.06.2C30 砼(

29、m3):39.2桥面铺装编号直径长度根数共长单位重共重总重(mm)(cm)(m)(kg/m)(kg)(kg)11025921483836.20.6172366.94741229601303848.02374.2 沥青砼(m3):46.0FYT-1防水层(m2):778.8C40防水砼(m3):77.9桥面连续编号直径长度根数共长单位重共重总重(mm)(cm)(m)(kg/m)(kg)(kg)1&20200300600.02.4661479.6 1480210298410298.40.617184.1184沥青玻璃丝布(m2):180.04X4X3000浸油木条(m3):0.05编号直径

30、长度根数共长单位重共重总重(mm)(cm)(m)(kg/m)(kg)(kg)1&25142412170.93.853658.5200721338680.3309.431218673.1281.743501242.0161.85128812154.6595.710&161951427.31.57843.1436&12126210126.20.888112.1 112710311170528.70.617326.2505832885278.8172.09130810.46.4C30 混凝土(m3):明盖板涵板顶铺装材料数量表中心桩号孔数孔径涵长Bmkn跨径L编号直径长度根数

31、共长单位重共重总重 C30防水砼(孔m)(m)(cm)(mm)(cm)(m)(kg/m)(kg)(kg)(m3)174567101225011024267162.10.617100.02354.182167913218.3134.7改建暗盖板涵台身钢筋参数表单侧暗涵台身钢筋数量表序号桩号接长LHabcd编号直径长度根数共长单位重共重总重C20砼(cm)(cm)(cm)(cm)(mm)(cm)(m)(kg/m)(kg)(kg)(m3)11752311021712.51163112062.21.57898.2982.022101802443.20.61726.731355126.64.1改建明盖板

32、涵台身钢筋参数表序号桩号左接长L右接长L H1H2H3H4abcdn1n2s1s2(cm)(cm)(cm)(cm)(cm) (cm)(cm)(cm)(cm)(cm)(cm)1583350115 135 1301385552528161320左侧坡右侧坡涵底坡单侧明涵台身钢筋数量表1.50%1.50%-1.00%编号直径长度根数共长单位重共重总重C20砼(mm)(cm)(m)(kg/m)(kg)(kg)(m3)60左侧11620360121.81.578192.2192.23.57683105881270.60.61743.660.14588211.87.37552714.99.2右侧21621

33、73678.11.578123.2123.22.395103551242.60.61726.336.8635527.14.4855189.96.1新建盖板涵台身钢筋2.10338参数表序号桩号涵长LHH1H2abdfmns左侧坡右侧坡涵底坡(cm)(cm)(cm)(cm)(cm)(cm) (cm)(cm)(cm)18509486 89.83243620202101.50%1.50%-0.50%单侧明涵台身钢筋数量表序号 桩号编号直径长度根数共长单位重共重总重C20砼(mm)(cm)(m)(kg/m)(kg)(kg)(m3)101161704474.81.578118.02323.8621724

34、272.2113.9310855868.40.61742.2614855217.110.65552413.28.1新建盖板涵台身钢筋g2.10338参数表序号桩号涵长LHH1H2abdfmns左侧坡右侧坡涵底坡(cm)(cm)(cm)(cm)(cm)(cm) (cm)(cm)(cm)11700194177 186817792084101.50%1.50%-0.50%单侧明涵台身钢筋数量表序号 桩号编号直径长度根数共长单位重共重总重C20砼22(mm)(cm)(m)(kg/m)(kg)(kg)(m3)31011626686228.81.578361.072715.95227086232.2366

35、.4310170520341.00.617210.425541705234.121.05556938.023.4盖板涵台帽钢筋参数表单侧台帽钢筋数量表序号桩号涵长Lc板厚dnk编号直径长度根数共长单位重共重总重C20砼(cm)(cm)(cm)(cm)(mm)(cm)(m)(kg/m)(kg)(kg)(m3)12508.5161201102551845.90.61728.3530.67背墙厚台帽宽台帽高21281316.610.2(cm)(cm)(cm)31781323.114.3356035明涵4225942.42.9847.27改建盖板涵基础钢筋序号桩号an左侧坡右侧坡涵底坡参数表单侧基础钢

36、筋数量表序号桩号接长Lmm1abn编号直径长度根数共长单位重共重总重C20砼(cm)(mm)(cm)(m)(kg/m)(kg)(kg)(m3)135074025121103552278.10.61748.2165.27.8基础宽B基础高边箍122236830110.468.1(cm)(cm)中箍20235281579.248.937060新建盖板涵基础钢筋参数表单侧基础钢筋数量表序号桩号涵长LBmabnm编号直径长度根数共长单位重共重总重C20砼(cm)(mm)(cm)(m)(kg/m)(kg)(kg)(m3)158312562716.511058832188.20.617116.1357.412.9基础宽B基础高Bm1边箍157243860262.8162.1(cm)(cm)中箍152342830128.479.23706030明涵盖板钢筋跨径斜度板宽编号直径长度根数共长单位重共重总重砼(m)度(m)(mm)(cm)(m)(kg/m)(kg)(kg)(m3)1.5011161561320.31.57832.032.0预制C2521215257.60.8886.76