每米板宽内的钢筋截面面积表钢筋间距（mm）当钢筋直径（mm）为下列数值时的钢筋截面面积（mm2）44.55681012141618202225707580901001801681571401262272121991771592802622452181964043773533142837186706285595031122104798287378516161508141412571131219920531924171015392872268125132234201136353393318128272545448841893927349131425430506847524224380170126545613654544909110120125130140150114105101979084145133127122114106178164157151140131257236226217202188457419402387359335714654628604561524102894290587080875413991283123211841100102618281676160815471436134023132121203619571818169628562618251324172244209434563168304129242715253444624091392737763506327216017017518019020079747270666399949188848012311511210910398177166162157149141314296287279265251491462449436413392707665646628595565962906880855810770125711831149111710581005159014971454141413391272196318481795174516531571237622362172211220011901306828872805272725842454250300504264537965113942011683142624523776165138046701018848125710471521126719631636钢筋间距44.55681012141618202225钢筋的计算截面面积及公称质量表直径d（mm）不同根数直径的计算截面面积（mm2）单根钢筋公称质量（kg/m）12345678934566.57.112.619.628.333.214.125.139576621.237.7598510028.350.37911313335.362.89814116642.475.411817019949.588.013719823256.5100.515722626563.6113.11772542990.05550.09860.1540.2220.26088.210121450.352.878.5113.1153.910110615722630815115823633946220121131445261625126439356577030231747167992435237055079210784024226289051232452475707101813850.3950.4150.6170.8881.2081618202225201.1254.5314.2380.1490.940250962876098260376394211401473804101812571521196310051272157119012454120615271885228129451407178121992661343616082036251330413927181022902827342144181.5781.9982.4662.9843.85328323640615.8804.21017.91256.612321608203625131847241330543770246332174072502730794021508962833695482561077540431056307125879649266434814310053554272389161113104.8346.3137.9909.865梁纵向钢筋单排最大根数(净保护层厚度：25mm）梁宽b（mm）钢筋直径（mm）141618202225283236401502/32/322221/211120043/43/43332/3221/2250554/54/543/432/3223006/765/65/654/543/432/33507/876/76/765/64/543/434008/98/97/87/86/76/75/64/54/53/44509/109/108/98/97/97/86/75/64/54/550010/1210/1110/119/108/107/96/86/75/64/555012/1311/1211/1210/119/118/107/96/85/75/660013/1412/1412/1311/1210/129/118/107/86/75/7梁宽b14161820222528323640梁纵向钢筋单排最大根数(净保护层厚度：30mm）梁宽b（mm）钢筋直径（mm）141618202225283236401502222221/21112003/433332/32/3221/225054/54/5443/432/32230065/65/654/54/543/432/33507/86/76/76/75/65/64/543/434008/987/87/86/76/75/64/54/53/44509/109/108/98/97/86/86/75/64/54/550010/1110/119/109/108/97/96/86/75/64/555011/1211/1210/1110/119/108/107/96/85/75/660012/1412/1311/1311/1210/129/118/107/86/75/7梁宽b14161820222528323640
