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）44.55681012141618202225701802272804047181122161621992872363544885430701275168212262377670104715082053268133934189506865458015719924535362898214141924251331813927475261369014017721831455987312571710223428273491422454541001261591962835037851131153920112545314238014909110114145178257457714102813991828231328563456446212010513316423641965494212831676212126183168409112510112715722640262890512321608203625133041392713097122151217387604870118415471957241729243776140901141402023595618081100143618182244271535061508410613118833552475410261340169620942534327216079991231773144917079621257159019632376306817074941151662964626659061183149718482236288717572911121622874496468801149145417952172280518070881091572794366288551117141417452112272719066841031492654135958101058133916532001258420063809814125139256577010051272157119012454250506479113201314452616804101812571521196330042536594168262377513670848104712671636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）1不同根数直径的计算截面面积（mm2）单根钢筋 公称质量（kg/m）12345678937.114.121.228.335.342.449.556.563.60.0555412.625.137.750.362.875.488.0100.5113.10.0986519.6395979981181371571770.154628.357851131411701982262540.2226.533.2661001331661992322652990.26080.5031.011.512.012.513.023.524.024.520.3958.252.81061582112643173704224750.4151078.51572363143934715506287070.61712113.122633945256567979290510180.88814153.93084626167709241078123213851.20816201.140260380410.0512061407160818101.57818254.55097631018127215271781203622901.99820314.26289421257157118852199251328272.46622380.176011401521190122812661304134212.98425490.998214731963245429453436392744183.85328615.8123218472463307936954310492655424.83432804.2160824133217402148255630643472386.313361017.9203630544072508961077125814391617.990401256.625133770502762837540879610053113109.865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精选范本