混凝土和钢筋常用数据表格.doc

希腊字母表字母 读音AlphaBetaGammaDelteEpsilonZetaEtaThetaIotaKappaLambdaMu字母 读音NuXiOmicronPiRhoSigmaTauUpsilonfai PhiChiPsiOmega混凝土受压区等效矩形应力图系数C50C55C60C65C70C75C8011.00.990.980.970.960.950.9410.80.790.780.770.760.750.74相对界限受压区高度b和截面最大抵抗矩系数s.max混凝土强度等级C50C60钢筋强度等级330MPa335MPa400MPa500MPa330MPa335MPa400MPa500MPab0.5760.5500.5180.4820.5570.5310.4990.464s.max0.4100.3990.3840.3660.4020.3900.3750.356混凝土强度等级C70C80钢筋强度等级330MPa335MPa400MPa500MPa330MPa335MPa400MPa500MPab0.5370.5120.4810.4470.5180.4930.4630.429s.max0.3930.3810.3650.3470.3840.3710.3560.337混凝土轴心抗压强度标准值和设计值（N/mm2）强度混凝土强度等级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混凝土轴心抗拉强度标准值和设计值（N/mm2）强度混凝土强度等级C15C20C25C30C35C40C45C50C55C60C65C70C75C80ftk1.271.541.782.012.202.392.512.642.742.852.932.993.053.11ft0.911.101.271.431.571.711.801.891.962.042.092.142.182.22混凝土保护层的最小厚度c（mm）环境类别板、墙、壳梁、柱、杆一1520二a2025二b2535三a3040三b4050注：1、混凝土强度等级不大于C25时，表中保护层厚度数值增加5mm；2、钢筋混凝土基础宜设置混凝土垫层，基础中钢筋的混凝土保护层厚度应从垫层顶面算起，且不应小于40mm。普通钢筋强度设计值（N/mm2）牌号抗拉强度设计值fy抗压强度设计值fyHPB300（A）270270HPB335（B）300300HRB335（C）、HRBF335（CF）、RRB335（CR）360360HRB500（D）、HRBF500（DF）435435纵向受力钢筋的最小配筋百分率（%）受力类型最小配筋百分率受压构件全部纵向钢筋强度等级500MPa0.50强度等级400MPa0.55强度等级300MPa、335MPa0.60一侧纵向钢筋0.20受弯构件、偏心受拉、轴心受拉构件一侧的受拉钢筋0.20和45ft/fy中的较大值注：1、受压构件全部纵向钢筋最小配筋百分率，当采用C60以上强度等级的混凝土时，应按表中规定增加0.10；2、板类受弯构件（不包括悬臂板）的受拉钢筋，当采用强度等级400MPa、500MPa的钢筋时，其最小配筋百分率应允许采用0.15和45ft/fy中的较大值；3、偏心受拉构件中的受压钢筋应按受压构件一侧纵向钢筋考虑；4、受压构件的全部纵向钢筋和一侧纵向钢筋的配筋率以及轴心受拉构件和小偏心受拉构件一侧的受拉钢筋的配筋率均应按构件的全截面面积计算；5、受弯构件、大偏心受拉构件一侧受拉钢筋的配筋率应按全截面面积扣除受压翼缘面积(bf-b)hf后的截面面积计算；6、当钢筋沿构件截面周边布置时，“一侧纵向钢筋”系指沿受力方向两个对边中一边布置的纵向钢筋。钢筋的公称直径、公称截面面积及理论重量公称直径/mm不同根数钢筋的计算截面积/mm单根钢筋理论重量/(kg/m)123456789628.357851131421701982262550.2226.533.2661001331661992322652990.260850.31011512012523023524024530.3958.252.81061582112643173704234750.4321078.51572363143934715506287070.61712113.122633945256567879190410170.88814153.93084616157699231077123113851.2116201.1402603804100512061407160818091.5818254.55097631017127215271781203622902.00（2.11）20314.26289421256157018842199251328272.4722380.176011401520190022812661304134212.9825490.998214731964245429453436392744183.85（4.10）28615.8123218472463307936954310492655424.8332804.2160924133217402148265630643472386.31（6.65）361017.9203630544072508961077125814391617.99401256.625133770502762837540879610053113109.87（10.34）50196439285892785698201178413748157121767615.42（16.28）注：1、表中直径d=8.2mm的计算截面面积及理论重量仅适用于有纵肋的热处理钢筋； 2、括号内为预应力螺纹钢筋的数值。钢筋混凝土板每米宽的钢筋面积表（mm2）钢筋间距/mm当钢筋直径/mm为下列数值时的钢筋截面面积/mm34566/888/101010/121212/141414/161670758085909510010194.388.483.278.574.570.6179167157148140132126281262245231218207196404377354333314298283561514491462437414393719671629592559529503920859805758716678644112110479819248728267851369127711981127106410089581616150814141331125711901131190817801669157114841405133521992053192418111710162015392536236722182088197218681775287226812513236522342116201111012012513014064.258.956.554.450.511410510096.689.71781631571511402572362262182023573273143022814574194023873595855375154954607146546286045618717987667376841028942905870808121411121068102795413991283123211841100161414801420136612681828167616081547143615016017018019020047.144.141.539.237.232.383.878.573.969.866.162.813112311510910398.2189177166157149141262246231218207196335314296279256251429403379358339322523491462436413393639599564532504479754707665628595565890834786742702668102696290685581077011831110104498593488813401257118311171058100522024025026028030032032.129.428.327.225.223.622.157.152.450.248.344.941.939.289.381.978.575.570.166.561.41291181131091019488178164157151140131123228209201193180168157292268258248230215201357327315302281262245436399383368342320299514471453435404377353607556534514477445417700641616592550513481807740710682634592554914838834773718670628注：表中钢筋直径中的6/8，8/10等系指两种直径的钢筋间隔放置。混凝土弹性模量（104N/mm2）强度等级C15C20C25C30C