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钢筋每米板宽内的钢筋截面__表钢筋直径钢筋间距6810121416182022间距803536289821414192425133181392747528090___559873125717102234282734914224901002835037851131153920112545___2380110011025745771410281399182823132856345611012023641965494212831676212126183168120130217387604870118415471957241729241301402023595618081100143618182244271514015018833552475410261340169620942534150160177___49170796212571590196323761601701662964626659061183149718482236170180157279436628855111714141745211218019014926541359581010581339165320011902001412513925657701005127215711901200220129229357514700914115714281728220250113201___452616804101812571521250260109193302435592773115714281728260280101180280404550718106013091584280钢筋间距6810121416182022钢筋间距梁纵向钢筋单排最大根数梁宽b钢筋直径(mm)(mm)1416182022252832361502/32/322221/21120043/43/43332/322250554/54/543/432/323006/765/65/654/543/433507/876/76/765/64/543/44008/98/97/87/86/76/75/64/54/54509/109/108/98/97/97/86/75/64/550010/1210/1110/119/108/107/96/86/75/655012/1311/1211/1210/119/118/107/96/85/760013/1412/1412/1311/1210/129/118/107/86/7梁宽b141618202225283236钢筋的计算截面__及公称质量表直径不同根数直径的计算截面__(mm2)公称质量(mm)123456789(kg/m)
628.
357851131421701982262540.
2226.
533.
2661001331661992322652990.
26850.
31011512012523023524024530.
3951078.5157236___
3934715506287070.
61712113.
122633945256567979290510170.
88814153.
93084626167709241078123213851.
20816201.
1402603804100512061407160818091.
57818254.
55097631018127215271781203622901.99820___.
26289421257157118852199251328272.
46622380.1760___
01521190122812661304134212.
98425490.
998214731963245429453436392744183.
85328615.
8123218472463307936954310492655424.834(mm)123456789(kg/m)直径不同根数直径的计算截面__(mm2)公称质量混凝土强度设计值(N/mm2)强度种类混凝土强度等级C15C20C25C30C35C40C45C50C55C60C65C70C75C80fc
7.
29.
611.
914.
316.
719.
121.
123.
125.
327.
529.
731.
833.
835.9ft
0.
911.
101.
271.
431.
571.
711.
801.__
1.
962.
042.
092.
142.
182.22 纵向受力钢筋混凝土保护层最小厚度(mm)环境类别板、墙、壳梁柱≤C20C25~C45≥C50≤C20C25~C45≥C50≤C20C25~C45≥C50一201515302525303030二a—2020—3030—3030b—2520—3530—3530三—3025—4035—4035注基础中纵向受力钢筋的混凝土保护层厚度不应小于40mm,当无垫层时不应小于70mm柱箍筋加密区的箍筋最小配箍特征值λν(ρν=λνfc/fw)抗震等级箍筋形式轴压比≤
0.
30.
40.
50.
60.
70.
80.
91.
01.05一普通箍、复合箍
0.
100.
110.
130.
150.
170.
200.23——螺旋箍、复合或连续复合矩形螺旋箍
0.
080.
090.
110.
130.
150.
180.21——二普通箍、复合箍
0.
080.
090.
110.
130.
150.
170.
190.
220.24螺旋箍、复合或连续复合矩形螺旋箍
0.
060.
070.
090.
110.
130.
150.
170.
200.22三普通箍、复合箍
0.
060.
070.
090.
110.
130.
150.
170.
200.22螺旋箍、复合或连续复合矩形螺旋箍
0.
050.
060.
070.
090.
110.
130.
150.
170.20注
1.普通箍指单个矩形箍和单个圆形箍;复合箍指矩形、多边形、圆形箍或拉筋组成的箍筋;符合螺旋箍指由螺旋箍与矩形、多边形、圆形箍或拉筋组成的箍筋;连续复合矩形螺旋箍指全部螺旋箍为同一根钢筋__而成的钢筋;
2.框支柱宜采用复合螺旋或井字复合箍,其最小配箍特征值应比表内数值增加
0.02,且体积配箍率不应小于
1.5%;
3.剪跨比不大于2的柱宜采用复合螺旋箍或井字复合箍,其体积配箍率不应小于
1.2%,9度时不应小于
1.5%;
4.计算复合螺旋箍的体积配筋率时,其非螺旋箍的箍筋体积应乘以换算系数
0.8 框架柱全部纵向受力钢筋最小配筋百分率(%)类 别抗震等级一二三四中柱和边柱
1.
00.
80.
70.6角柱、框支柱
1.
21.
00.
90.8注采用HRB400级热轧钢筋时应允许减少
0.1,混凝土强度等级高于C60时应增加
0.1框架梁纵向受拉钢筋的最小配筋白分率(%)抗震等级梁中位置支座跨中一级
0.4和80ft/fy中的较大值
0.3和65ft/fy中的较大值二级
0.3和65ft/fy中的较大值
0.25和55ft/fy中的较大值
三、四级
0.25和55ft/fy中的较大值
0.2和45ft/fy中的较大值混凝土板每m最小配筋率配筋__Ⅰ级钢(最小配箍率取
0.45ft/fc与
0.2%取较大值)板厚C20(
0.236%)C25(
0.272%)C30(
0.306%)C35(
0.336%)801__2182452691002362723063361202833263674031303073543984371503544084595041804254__551605混凝土板每m最小配筋率配筋__Ⅱ级钢板厚C20(
0.2%)C25(
0.2%)C30(
0.215%)C35(
0.236%)801601601721__100200200215236120240240258283130260260280307150300300323354180360360387425混凝土板每m最小配筋率配筋__Ⅲ级钢板厚C20(
0.2%)C25(
0.2%)C30(
0.2%)C35(
0.2%)80160160160160100200200200200120240240240240130260260260260150300300300300180360360360360框架柱每侧纵向受力钢筋最大根数 柱宽钢筋直径 35040045050055060065070075080018455678 2045567789101022445667899102544566789910 纵向受拉钢筋的最小锚固长度钢筋类型混凝土强度等级C20C25C30C35≥C40HPB235(Ⅰ级钢筋)31d27d24d22d20dHRB335(Ⅱ级钢筋)39d34d30d27d25dHRB400(Ⅲ级钢筋)46d40d36d33d30d 框架柱、框架梁加密区箍筋间距及直径抗震等级框架柱箍筋(mm)框架梁箍筋(mm)最大间距最小直径最大间距最小直径一6d或100φ10hb/
4、6d、100mmφ10二8d或100φ8(φ10hb/
4、8d、100mmφ8三8d或150(柱根100)φ8hb/
4、8d、150mmφ8四8d或150(柱根100)φ6(柱根φ8)hb/
4、8d、150mmφ6每米箍筋实配__箍筋折算为I级钢的__箍筋折算为I级钢的__2φ8—
2005.034φ8—
10020.12φ10—
2007.854φ10—
10031.42φ8—
1506.74φ12—
10077.552φ10—
15010.466φ8—200154φ8—
2007.856φ10—
20023.54φ10—
20015.76φ8—
10030.14φ12—
20038.776φ10—
10040.7每根附加吊筋承受集中荷载能力吊筋直径1012141618202225Ⅱ级钢筋45o
49.
667.
588.
2111.
6137.
7166.
6215.260o
60.
782.
6108.
0136.
7168.
7204.
1263.6Ⅲ级钢筋45o
57.
678.
3102.
4129.
6159.
9193.
4249.960o
70.
495.
9125.
4158.
7195.
9237.
0306.1受弯构件正截面抗弯计算用表ξα0γ0ξα0γ
00.
010.
0100.
9950.
330.
2760.
8350.
020.
0200.
9900.
340.
2820.
8300.
030.
0300.
9850.
350.2__
0.
8250.
040.
0390.
9800.
360.
2950.
8200.
050.
0490.
9750.
370.
3020.
8150.
060.
0580.
9700.
380.
3080.
8100.
070.
0680.
9650.
390.___
0.
8050.
080.
0770.
9600.
400.
3200.
8000.
090.
0860.
9550.
410.
3260.
7950.
100.
0950.
9500.
420.
3320.
7900.
110.
1040.
9450.
430.
3380.
7850.
120.
1130.
9400.
440.
3430.
7800.
130.
1220.
9350.
450.
3490.
7750.
140.
1300.
9300.
460.
3540.
7700.
150.
1390.
9250.
470.
3600.
7650.
160.
1470.
9200.
480.
3650.760ξα0γ0ξα0γ
00.
170.
1560.
9150.
490.
3700.
7550.
180.
1640.
9100.
500.
3750.
7500.
190.
1720.
9050.
510.
3800.
7450.
200.
1800.
9000.
520.
3850.
7400.
210.
1880.__
50.
530.
3900.
7350.
220.
1960.__
00.
540.
3940.
7300.
230.
2040.
885.
5440.
3960.
7280.
240.
2110.
8800.
550.
3990.
7250.
250.
2190.
875.
5560.
4010.
7220.
260.
2260.
8700.
560.
4030.
7200.
270.
2340.
8650.
570.
4080.
7150.
280.
2410.
8600.
580.
4120.
7100.
290.
2480.
8550.
590.
4160.
7050.
300.
2550.
8500.
600.
4200.
7000.
310.
2620.
8450.
610.
4240.
6950.
320.
2690.
840.
6140.
4260.693α0=ξ*1-
0.5*ξγ0=1-
0.5*ξHRB400级钢筋满足最小锚固的截面尺寸按规范要求的最小锚固长度C20C25C30C35≥C40二级三级二级三级一二级三级一二级三级一二级三级钢筋≤2553d49d46d42d41d37d37d34d34d31d2558d53d51d46d45d41d41d38d38d34d满足最小水平锚固长度的截面尺寸(墙)钢筋直径C20C25C30C35≥C40二级三级二级三级一二级三级一二级三级一二级三级12280250240220220200200180180160143503002802502502402502202202001640035035030028028028024024022018400400350350320300350280280250204504504003503503503503003002802250045045040040035040035035030025550550500450450450400400400350287006506005505505005004504504003075065065060060055055050050045032800700700650600600550550550500满足最小水平锚固长度的截面尺寸(柱)钢筋直径C20C25C30C35≥C40二级三级二级三级一二级三级一二级三级一二级三级12300300300300300300300300300300143503503003003003003003003003001640035035030030030030030030030018450400400350350300300300300300205004504004004003503503503503002250050045040040040040035035035025600550500450450450400400400350287006506505505505005005005004503075070065060060055055050050045032800750700650650600600550550500。