混凝土和鋼筋常用數(shù)據(jù)表格

1、希臘字母表字母 讀音AlphaBetaGammaDelteEpsilonZetaEtaThetaIotaKappaLambdaMu字母 NuXiOmicronPiRhoSigmaTaufaiChiPsiOmega讀音UpsilonPhi混凝土受壓區(qū)等效矩形應(yīng)力圖系數(shù) C50C55C60C65C70C75C801.00.990.980.970.960.950.940.80.790.780.770.760.750.74相對(duì)界限受壓區(qū)高度和截面最大抵抗矩系數(shù)混凝土強(qiáng)度等級(jí) C50C60鋼筋強(qiáng)度等級(jí)330MPa335MPa400MPa500MPa330MPa335MPa400MPa500MPa0.57

2、60.5500.5180.4820.5570.5310.4990.4640.4100.3990.3840.3660.4020.3900.3750.356混凝土強(qiáng)度等級(jí)C70C80鋼筋強(qiáng)度等級(jí)330MPa335MPa400MPa500MPa330MPa335MPa400MPa500MPa0.5370.5120.4810.4470.5180.4930.4630.4290.3930.3810.3650.3470.3840.3710.3560.337混凝土軸心抗壓強(qiáng)度標(biāo)準(zhǔn)值和設(shè)計(jì)值（）強(qiáng)度混凝土強(qiáng)度等級(jí)C20C25C30C35C40C45C50C55C60C65C70C75C80C1510.013.4

3、16.720.123.426.829.632.435.538.541.544.547.450.27.29.611.914.316.719.121.123.125.327.529.731.833.835.9混凝土軸心抗拉強(qiáng)度標(biāo)準(zhǔn)值和設(shè)計(jì)值（）強(qiáng)度混凝土強(qiáng)度等級(jí)C20C25C30C35C40C45C50C55C60C65C70C75C80C151.271.541.782.012.202.392.512.642.742.852.932.993.053.110.911.101.271.431.571.711.801.891.962.042.092.142.182.22混凝土保護(hù)層的最小厚度c（ mm）

4、環(huán)境類(lèi)別板、墻、殼梁、柱、桿一1520二 a2025二 b2535三 a3040三 b4050注： 1、混凝土強(qiáng)度等級(jí)不大于C25時(shí)，表中保護(hù)層厚度數(shù)值增加5mm；2、鋼筋混凝土基礎(chǔ)宜設(shè)置混凝土墊層，基礎(chǔ)中鋼筋的混凝土保護(hù)層厚度應(yīng)從墊層頂面算起，且不應(yīng)小于40mm。普通鋼筋強(qiáng)度設(shè)計(jì)值（）牌號(hào)抗拉強(qiáng)度設(shè)計(jì)值抗壓強(qiáng)度設(shè)計(jì)值HPB300（ A）270270HPB335（ B）300300HRB335（ C）、 HRBF335（ CF ）、 RRB335（ CR）360360HRB500（D）、 HRBF500（ DF）435435縱向受力鋼筋的最小配筋百分率（%）受力類(lèi)型最小配筋百分率強(qiáng)度等級(jí) 50

5、0MPa0.50全部縱向鋼筋強(qiáng)度等級(jí) 400MPa0.55受壓構(gòu)件強(qiáng)度等級(jí) 300MPa、 335MPa0.60一側(cè)縱向鋼筋0.20受彎構(gòu)件、偏心受拉、軸心受拉構(gòu)件一側(cè)的受拉鋼筋注： 1、受壓構(gòu)件全部縱向鋼筋最小配筋百分率，當(dāng)采用C60以上強(qiáng)度等級(jí)的混凝土?xí)r，應(yīng)按表中規(guī)定增加0.10 ；2、板類(lèi)受彎構(gòu)件（不包括懸臂板）的受拉鋼筋，當(dāng)采用強(qiáng)度等級(jí)400MPa、500MPa的鋼筋時(shí)，其最小配筋百分率應(yīng)允許采用0.15 和中的較大值；3、偏心受拉構(gòu)件中的受壓鋼筋應(yīng)按受壓構(gòu)件一側(cè)縱向鋼筋考慮；4、受壓構(gòu)件的全部縱向鋼筋和一側(cè)縱向鋼筋的配筋率以及軸心受拉構(gòu)件和小偏心受拉構(gòu)件一側(cè)的受拉鋼筋的配筋率均應(yīng)按構(gòu)

6、件的全截面面積計(jì)算；5、受彎構(gòu)件、大偏心受拉構(gòu)件一側(cè)受拉鋼筋的配筋率應(yīng)按全截面面積扣除受壓翼緣面積后的截面面積計(jì)算；6、當(dāng)鋼筋沿構(gòu)件截面周邊布置時(shí)， “一側(cè)縱向鋼筋”系指沿受力方向兩個(gè)對(duì)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不同根數(shù)鋼筋的計(jì)算截面積/mm2單根鋼筋理論/mm123456789重量 /(kg/m)628.357851131421701982262550.2226.533.2661001331661992322652990.260850.31011512012523023524024530.3958.252.810615821126431737042

7、34750.4321078.51572363143934715506287070.61712113.122633945256567879190410170.88814153.93084616157699231077123113851.2116201.1402603804100512061407160818091.5818254.55097631017127215271781203622902.00 （2.11）20314.26289421256157018842199251328272.4722380.176011401520190022812661304134212.9825490.9982

8、14731964245429453436392744183.85 （4.10）28615.8123218472463307936954310492655424.8332804.2160924133217402148265630643472386.31 （6.65）361017.9203630544072508961077125814391617.99401256.625133770502762837540879610053113109.87 （ 10.34）50196439285892785698201178413748157121767615.42 （ 16.28）注： 1、表中直徑 d=8

9、.2mm的計(jì)算截面面積及理論重量?jī)H適用于有縱肋的熱處理鋼筋；2 、括號(hào)內(nèi)為預(yù)應(yīng)力螺紋鋼筋的數(shù)值。鋼筋混凝土板每米寬的鋼筋面積表（）鋼筋當(dāng)鋼筋直徑 /mm 為下列數(shù)值時(shí)的鋼筋截面面積/mm2間距34566/888/101010/121212/141414/1616/mm7010117928140456171992011211369161619082199253628727594.316726237751467185910471277150817802053236726818088.41572453544916298059811198141416691924221825138583.2148231

10、3334625927589241127133115711811208823659078.51402183144375597168721064125714841710197222349574.513220729841452967882610081190140516201868211610070.61261962833935036447859581131133515391775201111064.21141782573574575857148711028121413991614182812058.9105163236327419537654798942111212831480167612556.5

11、100157226314402515628766905106812321420160813054.496.6151218302387495604737870102711841366154714050.589.714020228135946056168480895411001268143615047.183.813118926233542952363975489010261183134016044.178.51231772463144034915997078349621110125717041.573.91151662312963794625646657869061044118318039.26

12、9.8109157218279358436532628742855985111719037.266.1103149207256339413504595702810934105820032.362.898.2141196251322393479565668770888100522032.157.189.312917822829235743651460770080791424029.452.481.911816420926832739947155664174083825028.350.278.511315720125831538345353461671083426027.248.375.510915119324830236843551459268277328025.244.970.110114018023028134240447755063471830023.641.966.59413116821526232037744551359267032022.139.261.488123157201245299353417481554628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ǎ?qiáng)度等級(jí)C15C20C25C30C35C40C45C50C55C60C65C70C75C802.202