钢筋的计算截面面积直径不同根数直径的计算截面面积（mm）119.628.333.250.352.878.5113.1153.9201.12.5314380490.9615.8804.21017.91256.62直径（mm）566.588.21012141618202225283230239576610110615722630840250962876098212321608203625133598510015115823633946260376394211401473184724133037704791131332012113144526168041018125715211963246332174072502759814216625223935657701005127215711901243079402150628361181701993023174716799241206152718852281294536982561077071371982323523705507921078140717812199266134331056307125879681572262602422620512321608203625133041392749263481431005391772299453475707101713851809229028273421441852723161113101011121325536843266861021147020012614330940416381.78005.4104.613232.716335.814274396570473910991583215528153563439953216872.68621.211258.814250.617592.415294429875579211781697230930173818471357027363.5923712063152691884916314453531805845125618102462321840725027608278.49852.81286716286201061733348158558133519232616341943275341628345.310468.613671.417304.321362.218353509590595014132036277036204581565668428836.211084.414475.618322.222618.819372538631956100314922149292438214836597072229327.1117001528019340238752021222345165171157121418062601304625587227874211291141631849723412202242526（mm）1962162352833113403323653985035536045285816347821131124413571539169318472011221224132528003031423456377038014181456149095399.950.861586773.873.680428846.29650.41017911196.912214.81256613822.615079.2392412431566594623669773010061056110710561109116215701917272262237524883078323233802242234424509053455599628465986912760279828362981810308.9108001231612932138160841688817692203582137622394251322632770490510679708736797830863120712581308126713201373188419632041271428282941369438484001482650285229610863636617717855816991229503988311781.612272.512763.414779.21539516010.819300.82010520909.224429.6247.5265.430158.43141532671.6566.588.21012141618202225283230（mm）直径钢筋间距70758090100110120125130140150160170175180190200250300间距1234567101112131415钢筋1617181920212223242526每米板宽内的钢筋截面面积表52802622452181961781157151140131123115112109103987965梁纵向钢筋单排最大根数
283236间距70758090100110120125130140150160170175180190200250300间距梁宽b04377353314283257236226217202188177166162157149141113948101214钢 筋 直 径1618204488413927349131422856261825132417224420941963184817951745165315711257104722305068475242243801345631683041292427152534237622362172211220011901152112672570126561390944624091392737763506327230682887280527272584241963163671811221616219928723635670104715082053268133936282141419242513318155987312571710223428275037851131153920112577141028139918282313419694212831676212140262051232160820363876048701184171957359561808110014361818335524710261340169631449170796212571590296287279265251201168462449431339231426266566285955652377906880855810770616513118314971149111710581005804670141414133912721018848(mm)150200250300350400450500550600梁宽b141618钢筋直径（mm）202225233/44/55/66/77/87/98/109/11281/22/3344/55/66/76/87/98/1032122/33/444/55/66/76/87/83612233/44//55/65/76/761588042101804105536167872/32/322243/43/4335//6/765/65/657/876/76/768/98/97/87/86/79/109/108/98/97/910/1210/1110/119/108/1012/1311/1211/1210/119/1113/1412/1412/1311/1210/12141618202225283236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。
3079246320524021321626805090407233935681012141618202225283232
