1、【精品文檔】如有侵權，請聯系網站刪除，僅供學習與交流混凝土和鋼筋常用數據表格.精品文檔.希臘字母表字母 讀音AlphaBetaGammaDelteEpsilonZetaEtaThetaIotaKappaLambdaMu字母 讀音NuXiOmicronPiRhoSigmaTauUpsilonfai PhiChiPsiOmega混凝土受壓區等效矩形應力圖系數C50C55C60C65C70C75C8011.00.990.980.970.960.950.9410.80.790.780.770.760.750.74相對界限受壓區高度b和截面最大抵抗矩系數s.max混凝土強度等級C50C60鋼筋強度等級3

2、30MPa335MPa400MPa500MPa330MPa335MPa400MPa500MPab0.5760.5500.5180.4820.5570.5310.4990.464s.max0.4100.3990.3840.3660.4020.3900.3750.356混凝土強度等級C70C80鋼筋強度等級330MPa335MPa400MPa500MPa330MPa335MPa400MPa500MPab0.5370.5120.4810.4470.5180.4930.4630.429s.max0.3930.3810.3650.3470.3840.3710.3560.337混凝土軸心抗壓強度標準值和設

3、計值（N/mm2）強度混凝土強度等級C15C20C25C30C35C40C45C50C55C60C65C70C75C80fck10.013.416.720.123.426.829.632.435.538.541.544.547.450.2fc7.29.611.914.316.719.121.123.125.327.529.731.833.835.9混凝土軸心抗拉強度標準值和設計值（N/mm2）強度混凝土強度等級C15C20C25C30C35C40C45C50C55C60C65C70C75C80ftk1.271.541.782.012.202.392.512.642.742.852.932.99

4、3.053.11ft0.911.101.271.431.571.711.801.891.962.042.092.142.182.22混凝土保護層的最小厚度c（mm）環境類別板、墻、殼梁、柱、桿一1520二a2025二b2535三a3040三b4050注：1、混凝土強度等級不大于C25時，表中保護層厚度數值增加5mm；2、鋼筋混凝土基礎宜設置混凝土墊層，基礎中鋼筋的混凝土保護層厚度應從墊層頂面算起，且不應小于40mm。普通鋼筋強度設計值（N/mm2）牌號抗拉強度設計值fy抗壓強度設計值fy'HPB300（A）270270HPB335（B）300300HRB335（C）、HRBF335（C

5、F）、RRB335（CR）360360HRB500（D）、HRBF500（DF）435435縱向受力鋼筋的最小配筋百分率（%）受力類型最小配筋百分率受壓構件全部縱向鋼筋強度等級500MPa0.50強度等級400MPa0.55強度等級300MPa、335MPa0.60一側縱向鋼筋0.20受彎構件、偏心受拉、軸心受拉構件一側的受拉鋼筋0.20和45ft/fy中的較大值注：1、受壓構件全部縱向鋼筋最小配筋百分率，當采用C60以上強度等級的混凝土時，應按表中規定增加0.10；2、板類受彎構件（不包括懸臂板）的受拉鋼筋，當采用強度等級400MPa、500MPa的鋼筋時，其最小配筋百分率應允許采用0.15

6、和45ft/fy中的較大值；3、偏心受拉構件中的受壓鋼筋應按受壓構件一側縱向鋼筋考慮；4、受壓構件的全部縱向鋼筋和一側縱向鋼筋的配筋率以及軸心受拉構件和小偏心受拉構件一側的受拉鋼筋的配筋率均應按構件的全截面面積計算；5、受彎構件、大偏心受拉構件一側受拉鋼筋的配筋率應按全截面面積扣除受壓翼緣面積(bf'-b)hf'后的截面面積計算；6、當鋼筋沿構件截面周邊布置時，“一側縱向鋼筋”系指沿受力方向兩個對邊中一邊布置的縱向鋼筋。鋼筋的公稱直徑、公稱截面面積及理論重量公稱直徑/mm不同根數鋼筋的計算截面積/mm²單根鋼筋理論重量/(kg/m)123456789628.35785

7、1131421701982262550.2226.533.2661001331661992322652990.260850.31011512012523023524024530.3958.252.81061582112643173704234750.4321078.51572363143934715506287070.61712113.122633945256567879190410170.88814153.93084616157699231077123113851.2116201.1402603804100512061407160818091.5818254.5509763101712721

8、5271781203622902.00（2.11）20314.26289421256157018842199251328272.4722380.176011401520190022812661304134212.9825490.998214731964245429453436392744183.85（4.10）28615.8123218472463307936954310492655424.8332804.2160924133217402148265630643472386.31（6.65）361017.9203630544072508961077125814391617.99401256.6

9、25133770502762837540879610053113109.87（10.34）50196439285892785698201178413748157121767615.42（16.28）注：1、表中直徑d=8.2mm的計算截面面積及理論重量僅適用于有縱肋的熱處理鋼筋； 2、括號內為預應力螺紋鋼筋的數值。鋼筋混凝土板每米寬的鋼筋面積表（mm2）鋼筋間距/mm當鋼筋直徑/mm為下列數值時的鋼筋截面面積/mm²34566/888/101010/121212/141414/161670758085909510010194.388.483.278.574.570.617916715

10、714814013212628126224523121820719640437735433331429828356151449146243741439371967162959255952950392085980575871667864411211047981924872826785136912771198112710641008958161615081414133112571190113119081780166915711484140513352199205319241811171016201539253623672218208819721868177528722681251323652234

11、2116201111012012513014064.258.956.554.450.511410510096.689.71781631571511402572362262182023573273143022814574194023873595855375154954607146546286045618717987667376841028942905870808121411121068102795413991283123211841100161414801420136612681828167616081547143615016017018019020047.144.141.539.237.232

12、.383.878.573.969.866.162.813112311510910398.2189177166157149141262246231218207196335314296279256251429403379358339322523491462436413393639599564532504479754707665628595565890834786742702668102696290685581077011831110104498593488813401257118311171058100522024025026028030032032.129.428.327.225.223.622

13、.157.152.450.248.344.941.939.289.381.978.575.570.166.561.41291181131091019488178164157151140131123228209201193180168157292268258248230215201357327315302281262245436399383368342320299514471453435404377353607556534514477445417700641616592550513481807740710682634592554914838834773718670628注：表中鋼筋直徑中的6/8，8/10等系指兩種直徑的鋼筋間隔放置?；炷翉椥阅Ａ浚?#215;104N/mm2）強度等級C15C20C25C30C35