钢筋的计算截面面积及公称质量表.doc

钢筋的计算截面面积及公称质量表直径d（mm）不同根数直径的计算截面面积（mm2）单根钢筋公称质量（kg/m）12345678934566.57.112.619.628.333.214.125.139576621.237.75985100 28.350.37911313335.362.89814116642.475.4118170199 49.588.0137198232 56.5100.5157226265 63.6113.1177254299 0.05550.09860.1540.2220.26088.210121450.352.878.5113.1153.9 101106157226308 151158236339462 201211314452616 251264393565770 302317471679924 3523705507921078 4024226289051232 45247570710181385 0.3950.4150.6170.8881.208 1618202225201.1254.5314.2380.1490.9402509628760982 60376394211401473 8041018125715211963 10051272157119012454 12061527188522812945 14071781219926613436 16082036251330413927 18102290282734214418 1.5781.9982.4662.9843.853 28323640615.8804.21017.91256.6 1232160820362513 1847241330543770 2463321740725027 3079402150896283 3695482561077540 4310563071258796 49266434814310053 55427238916111310 4.8346.3137.9909.865 净保护层厚度（mm）： 25 30 35 40梁纵向钢筋单排最大根数 (净保护层厚度：25mm）梁宽 b（mm）钢筋直径（mm）141618202225283236401502/32/322221/211120043/43/43332/3221/2250554/54/543/432/3223006/765/65/654/543/432/33507/876/76/765/64/543/434008/98/97/87/86/76/75/64/54/53/44509/109/108/98/97/97/86/75/64/54/550010/1210/1110/119/108/107/96/86/75/64/555012/1311/1211/1210/119/118/107/96/85/75/660013/1412/1412/1311/1210/129/118/107/86/75/7梁宽 b14161820222528323640注：表内分数值，其分子为梁上部纵筋单排最大根数，分母为梁下部钢筋单排最大根数。梁纵向钢筋单排最大根数 (净保护层厚度：30mm）梁宽 b（mm）钢筋直径（mm）141618202225283236401502222221/21112003/433332/32/3221/225054/54/5443/432/32230065/65/654/54/543/432/33507/86/76/76/75/65/64/543/434008/987/87/86/76/75/64/54/53/44509/109/108/98/97/86/86/75/64/54/550010/1110/119/109/108/97/96/86/75/64/555011/1211/1210/1110/119/108/107/96/85/75/660012/1412/1311/1311/1210/129/118/107/86/75/7梁宽 b14161820222528323640梁纵向钢筋单排最大根数 (净保护层厚度 35mm）梁宽 b（mm）钢筋直径（mm）14161820222528323640150222221/2111120033332/32/32221/22504/54/5443/43/432/3223005/65/6554/54/53/43/432/33507/76/76/765/65/64/543/434008/97/87/876/75/75/64/54/53/44509/108/98/98/97/86/86/75/64/54/550010/1110/119/109/108/97/96/85/75/64/555011/1211/1210/1110/119/108/107/96/85/75/660012/1412/1311/1211/1210/119/118/97/86/75/7梁宽 b14161820222528323640梁纵向钢筋单排最大根数 (净保护层厚度 40mm）梁宽 b（mm）钢筋直径（mm）1416182022252832364015022221/21111120033332/32221/21/22504/54443/4332/3223005/65554/543/4332/33506/76/7665/64/54/53/43/434007/87/87/876/75/65/64/543/44508/108/98/987/86/75/75/64/54/550010/119/109/1098/97/86/85/75/64/555011/1210/1210/1110/119/108/97/86/75/75/660012/1311/1311/1211/1210/118/108/97/86/75/7梁宽 b14161820222528323640净保护层厚度（mm）： 30 35 40 50柱纵向钢筋单排最大根数 (净保护层厚度：30mm）柱宽 b（mm）钢筋直径（mm）1416182022252832364025033333332223004444433333350555444443340065555554444506666655544500777766655555088777766656009888877766650109998887767001010109998877750111110101099888800121111111010109988501312121211111010999001313131212111110109柱宽 b14161820222528323640柱纵向钢筋单排最大根数 (净保护层厚度：35mm）柱宽 b（mm）钢筋直径（mm）141618202225283236402503333332222300444433333335055444444334005555554444450666655554450077766665555508877776665600988887776665099998887767001010109998877750111110101099888800121111111010109988501212121111111010999001313121212111110109柱宽 b14161820222528323640柱纵向钢筋单排最大根数 (净保护层厚度 40mm）柱宽 b（mm）钢筋直径（mm）1416182022252832364025033333222223004433333333350544444433340055555444444506666555544500776666655555087777666656008888777666650999888777670010109998887775011101010109988880012111111101099888501212121111101010999001313121212111110109柱宽 b14161820222528323640柱纵向钢筋单排最大根数 (净保护层厚度 50mm）柱宽 b（mm）钢筋直径（mm）141618202225283236402503322222222300333333332235044444433334005555444443450665555544450076666655555507777666655600888777766665099888877667001099998877775010101010998887800111111101010998885012121111111010998900131212121111101099柱宽 b14161820222528323640附加箍筋承受集中荷载承载力表F (kN)钢筋级别箍 筋箍 筋 个 数肢数直径(mm)每侧 1 个(共 2 个)每侧 2 个(共 4 个)每侧 3 个(共 6 个)每侧 4 个(共 8 个)HPB235 (级)双肢623.847.571.395.0842.284.4126.7168.91066.0131.9197.9263.91295.0 190.0285.0380.014129.3258.6387.9517.2四肢647.595.0142.5190.0884.4168.9253.3337.810131.9263.9395.8527.812190.0380.0570.0760.014258.6517.2775.81034.5钢筋级别箍 筋箍 筋 个 数肢数直径(mm)每侧 1 个(共 2 个)每侧 2 个(共 4 个)每侧 3 个(共 6 个)每侧 4 个(共 8 个)HRB335 (级)双肢633.967.9101.8135.7860.3120.6181.0241.31094.2188.5282.7377.012135.7271.4407.2542.914184.7369.5554.2738.9四肢667.9135.7203.6271.48120.6241.3361.9482.510188.5377.0565.5754.012271.4542.9814.31085.714369.5738.91108.41477.8附加吊筋承受集中荷载承载力表F （kN）钢筋级别钢筋直径(mm)弯 起 角 度45601 根2 根3 根4 根1 根2 根3 根4 根HPB235 (级)1233.667.2100.8134.441.182.3123.4164.51445.791.4137.2182.956.0112.0168.0224.01659.7119.4179.1238.873.1146.3219.4292.51875.6151.1226.7302.392.6185.1277.7370.22093.3186.6279.9373.2114.3228.5342.8457.122112.9225.8338.7451.6138.3276.5414.8553.125145.8291.6437.3583.1178.5357.1535.6714.2钢筋级别钢筋直径(mm)弯 起 角 度45601 根2 根3 根4 根1 根2 根3 根4 根HRB335 (级)1248.096.0143.9191.958.8117.5176.3235.11465.3130.6195.9261.280.0160.0240.0320.01685.3170.6255.9341.2104.5208.9313.4417.918108.0215.9323.9431.8132.2264.5396.7528.920133.3266.6399.9533.1163.2326.5489.7653.022161.3322.6483.8645.1197.5395.0592.6790.125208.3416.5624.8833.0255.1510.1765.21020.3窗体顶端窗体底端6.1.1 本章适用的现浇钢筋混凝土房屋的结构类型和最大高度应符合表 6.1.1 的要求。平面和竖向均不规则的结构或建造于类场地的结构，适用的最大高度应适当降低。 注：本章的“抗震墙”即国家标准混凝土结构设计规范GB50010 中的剪力墙。表6.1.1 现浇钢筋混凝土房屋适用的最大高度（m） 结 构 类 型烈 度6 度 7 度 8 度 9 度 框 架60554525框架抗震 震 分框支抗震墙12010080不应采用框架核心 中 柱抗震墙403530不应采用注：1 房屋高度指室外地面到主要屋面板板顶的高度（不包括局部突出屋顶部分）； 2 框架核心简结构指周边稀柱框架与核心筒组成的结构； 3 部分框支抗震墙结构指首层或底部两层框支抗震墙结构； 4 乙类建筑可按本地区抗震设防烈度确定适用的最大高度； 5 超过表内高度的房屋，应进行专门研究和论证，采取有效的加强措施。6.1.2 钢筋混凝土房屋应根据烈度、结构类型和房屋高度采用不同的抗震等级，并应符合相应的计算和构造措施要求。丙类建筑的抗震等级应按表 6.1.2 确定。表6.1.2 现浇钢筋混凝土房屋的抗震等级 结 构 类 型烈 度6789框架结构高 度 （m)30303030303025框 架四三三二二一一剧场、体育馆等大跨度公共建筑三二一一框架抗震墙结构高 度 （m)60606060606050框 架四三三二二一一抗震墙三二一一一抗震墙结 构高 度 （m)80808080808060抗震墙四三三二二一一部分框支抗震墙结构抗震墙三二二一/框支层框架二二一一筒体结构