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1、每米板宽内的钢筋截面面积表当钢筋直径（mm）为下列数值时的钢筋截面面积（mm?）810121416B3718G070EE8EI5900311220047382EI73ZB51616C508IM14I257mi312199(2053面24皿10(1539287212168112513(22340011CD38457SH93D20B7359B5714(5540285041561(3241028SH2(905BI70BD8CZ541399皿83(11232(1)18411100而261828(D676I608m547D436IB4O23)D41314(2D612B72I79(365(251491S6
2、2期9SB6回13092707(5651046028095065962E8060S55E110(Z701257mi83U149I117lID580D05152O1CD683140624521377616S13804070810121416钢筋的计算截面面积及公称质量表不同根数直径的计算截面面积（mm2）4567)E5HDO28.3ED.3O9mL3B335.3G2.89BIMim5642.4C35.418I70(ID949.5S8.0dB7(ID82B2BB93622.011211(3140520162.5106413930650703.O2(31170I715I79S1243.5237055
3、0792皿78140CD473804(ID18lI1257(IB21(ID6310.050127201571CIDOl(24541206HB270B8512281129451407C7810199126610436)541377024630217SD72ED27307900215D89028336950825010705404310630CZ1125B1796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）141618202225283236401502/32/322221/211120043/43/43332/3221/2250554/54/543/432/32
4、23006/765/65/654/543/432/33507/876/76/765/64/543/434008/98/97/87/86/76/75/64/54/53/44509/109/108/98/97/97/86/75/64/54/550010/1210/1110/119/108/107/96/86/75/64/555012/1311/1211/1210/119/118/107/96/85/75/660013/1412/1412/1311/1210/129/118/107/86/75/7梁宽b14161820222528323640梁纵向钢筋单排最大根数（净保护层厚度：30mm）梁宽b(m
5、m)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
