1、混混凝凝土土强强度度设设计计值值及及弹弹性性模模量量(N/mm2)种类符号混 凝 土 强 度 等 级 及 弹 性 模 量C7.5C10C15C20C25C30轴心抗压fc3.75.07.510.012.515.0弯曲抗压fcm4.15.58.511.013.516.5抗 拉ft0.60.70.91.11.31.5弹性模量Ec145001750022000255002800030000C35C40C45C50C55C6017.519.521.523.525.026.519.021.523.526.027.529.01.71.81.92.12.12.2315003250033500345003552、0036000混混凝凝土土强强度度设设计计值值及及弹弹性性模模量量(N/mm2)混 凝 土 强 度 等 级 及 弹 性 模 量钢钢筋筋截截面面面面积积表表直径不同根数钢筋的计算截面面积(mm2)(mm)12345637.114.121.228.335.342.4412.625.137.750.362.875.4519.639597998118628.35785113141170850.31011512012513021078.515723631439347112113.122633945256567914153.930846261677092416201.14026038041005120613、8254.550976310181272152720314.262894212571571188522380.1760114015211901228125490.9982147319632454294528615.81232184724633079369532804.216082413321740214825361017.920363054407250896107401256.625133770502762837540单根钢筋公称789质量标准(Kg/m)49.556.563.60.05588.0100.5113.10.0991371571770.1541982262540.2223524024、4520.3955506287070.61779290510180.8881078123213851.2081407160818101.5781781203622901.9982199251328272.4662661304134212.9843436392744183.8534310492655424.8345630643472386.3137125814391617.990879610053113109.865不同根数钢筋的计算截面面积(mm2)板板宽宽1 1米米内内各各种种钢钢筋筋间间距距的的钢钢筋筋截截面面面面积积(mm(mm2 2/m)/m)钢筋间距钢 筋 直 径(mm)(mm)665、/888/101010/121212/141410028339350364478595811311335153911025735745758571487110281214139912023632741953765479894211131283125226314402515628767905106812321302173023874956047378701027118414020228035946056168480895411001501882623354295246397548901026160177245314403491599707834962170166231296379462564666、578590618015721827935843653262874285519014920726533941350459570381020014119625132239347956566877022012917822829335743651460770024011816420926832739947155664125011315720125831438345253461614/161616/181818/2020177520112278254528433142161418282071231325852856147916761898212123692618142016081822203622757、25131365154717521957218724171268143616271818203122441183134015181696189520941109125714241590177719631044118313401497167218489861117126514141580174593410581199133914961653887100511391272142215718079141035115712921428740838949106011851309710804911101811371257板板宽宽1 1米米内内各各种种钢钢筋筋间间距距的的钢钢筋筋截截面面面面积积(mm(mm8、2 2/m)/m)ca5df689196e8291d03d2fe84564d840.xls2023/12/20 第 7 页，共 8 页 J-1:J-1:轴力N=700 kN剪力Vx=54 kN弯矩Mx=90 kN-m剪力Vy=30 kN弯矩My=50 kN-m承载力设计值f=250 kPa埋深D=1.8 mft=1.1 N/mm2ac=350 mmbc=350 mmh=600 mm估算：3.93 m2令n=l/b=1.2l=2170 mmb=1809 mm取：l=2400 mmb=2000 mm基底面积A=4.80 m21.92E+09 mm31.60E+09 mm3181.8 kPaf满足29、88.1 kPa1.2f满足75.6 kPa0满足抗冲切验算：b bc+2h0=1470 mml ac+2h0=1470 mmpjmaxA1=216.7 kN 0.6ftA2=336.3 kN满足轴力N作用下：111.1 kN-m85.2 kN-mX向弯矩作用下：27.8 kN-mMII=0 kN-mY向弯矩作用下：MI=0 kN-m14.6 kN-m138.9 kN-m99.8 kN-mfy=210 N/mm2656 mm2/m实配d12125,As=905 mm2/m6blW2x6lbW2yAGNpyyyxxxmaxWhVMWhVMAGNpyyyxxxminWhVMWhVMAGNp)al 2()bb(AN241Mc2cII)()(c2ccxxxIbballalWhVM481M)()(c2ccyyyIIal 2bbbbbWhVM481MIMIIM0yISIhf90MA.)bb2()al(AN241Mc2cID20fN2.1A ca5df689196e8291d03d2fe84564d840.xls2023/12/20 第 8 页，共 8 页393 mm2/m实配d10200,As=393 mm2/m0yIISIIhf90MA.0yISIhf90MA.