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剪力墙分布筋体积配箍率计算用表
2025-09-22 23:17:58 责编:小OO
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利用表格计算剪力墙分布筋体积配箍率的方法

剪力墙分布筋体积配箍率的计算公式如:

            

、可从下表中查到。

例:300厚剪力墙,水平分布筋φ12@200,拉筋φ8@400双向,求分布筋的体积配箍率。

解:查表:                 

        

表1a     剪力墙约束边缘构件配箍特征值时的最小体积配箍率(%)

混凝土强度等级(fc)

C20

(9.6)

C25

(11.9)

C30

(14.3)

C35

(16.7)

C40

(19.1)

C45

(21.1)

C50

(23.1)

C55

(25.3)

C60

(27.5)

C65

(29.7)

C70

(31.8)

C75

(33.8)

C80

(35.9)

210.0.911.131.361.591.822.012.202.412.622.833.033.223.42
300.0.0.790.951.111.271.411.541.691.831.982.122.252.39
360.0.530.660.790.931.061.171.281.411.531.651.771.881.99
表1b     剪力墙约束边缘构件配箍特征值时的最小体积配箍率(%)

混凝土强度等级
C20C25C30C35C40C45C50C55C60C65C70C75C80
210.0.460.570.680.800.911.001.101.201.311.411.511.611.71
300.0.320.400.480.560.0.700.770.840.920.991.061.131.20
360.0.270.330.400.460.530.590.0.700.760.830.880.941.00
表2   剪力墙拉筋体积配箍率(%)

钢筋直径及间距制表公式:

墙厚

h

6

@100X100

8

@100X100

10

@100X100

12

@100X100

14

@100X100

16

@100X100

2000.300.530.831.201.2.14
2500.300.530.821.181.612.11
3000.290.520.821.171.602.09
3500.290.520.811.171.592.08
4000.290.520.811.161.582.07
4500.290.510.801.161.582.06
5000.290.510.801.161.572.05
表3   剪力墙对称配置的分布筋体积配箍率(%)

墙厚

h

钢筋直径及间距
8@100

8@125

8@150

8@200

10@100

10@125

10@150

10@200

12@100

12@125

12@150

12@200

14@100

14@125

14@150

14@200

16@100

16@125

16@150

16@200

2000.6280.5030.4190.3140.9820.7850.6550.4911.4141.1310.9420.7071.9241.5391.2830.9622.5132.0111.6761.257
2500.4790.3830.3190.2390.7480.5980.4990.3741.0770.8620.7180.5391.4661.1730.9770.7331.9151.5321.2770.957
3000.3870.3090.2580.1930.6040.4830.4030.3020.8700.6960.5800.4351.1840.9470.70.5921.5471.2371.0310.773
3500.3240.2590.2160.1620.5070.4050.3380.2530.7300.5840.4860.3650.9930.7950.6620.4971.2971.0380.8650.9
4000.2790.2230.1860.1400.4360.3490.2910.2180.6280.5030.4190.3140.8550.6840.5700.4281.1170.40.7450.559
4500.2450.1960.1630.1230.3830.3060.2550.1920.5520.4410.3680.2760.7510.6010.5010.3750.9810.7850.6540.490
5000.2190.1750.1460.1090.3410.2730.2280.1710.4920.3930.3280.2460.6690.5350.4460.3350.8740.6990.5830.437
制表公式:,为钢筋间距。

表4   剪力墙对称配置分布筋配筋率(%)

墙厚

h

钢筋直径及间距
8@100

8@125

8@150

8@200

10@100

10@125

10@150

10@200

12@100

12@125

12@150

12@200

14@100

14@125

14@150

14@200

16@100

16@125

16@150

16@200

2000.5030.4020.3350.2510.7850.6280.5240.3931.1310.9050.7540.5651.5391.2321.0260.7702.0111.6081.3401.005
2500.4020.3220.2680.2010.6280.5030.4190.3140.9050.7240.6030.4521.2320.9850.8210.6161.6081.2871.0720.804
3000.3350.2680.2230.1680.5240.4190.3490.2620.7540.6030.5030.3771.0260.8210.6840.5131.3401.0720.40.670
3500.2870.2300.1910.1440.4490.3590.2990.2240.60.5170.4310.3230.8800.7040.5860.4401.1490.9190.7660.574
4000.2510.2010.1680.1260.3930.3140.2620.1960.5650.4520.3770.2830.7700.6160.5130.3851.0050.8040.6700.503
4500.2230.1790.1490.1120.3490.2790.2330.1750.5030.4020.3350.2510.6840.5470.4560.3420.40.7150.5960.447
5000.2010.1610.1340.1010.3140.2510.2090.1570.4520.3620.3020.2260.6160.4930.4110.3080.8040.30.5360.402
制表公式:,为钢筋间距。

.

表5      板钢筋配筋率(%)

墙厚

h

钢筋直径及间距
6@1006@1256@1506@2008@1008@1258@1508@20010@10010@12510@15010@20012@10012@12512@15012@20014@10014@12514@15014@20016@10016@12516@15016@200
600.4710.3770.3140.2360.8380.6700.5590.4191.3091.0470.8730.6551.8851.5081.2570.9422.5662.0531.7101.2833.3512.6812.2341.676
800.3530.2830.2360.1770.6280.5030.4190.3140.9820.7850.6550.4911.4141.1310.9420.7071.9241.5391.2830.9622.5132.0111.6761.257
1000.2830.2260.1880.1410.5030.4020.3350.2510.7850.6280.5240.3931.1310.9050.7540.5651.5391.2321.0260.7702.0111.6081.3401.005
1200.2360.1880.1570.1180.4190.3350.2790.2090.6550.5240.4360.3270.9420.7540.6280.4711.2831.0260.8550.11.6761.3401.1170.838
1400.2020.1620.1350.1010.3590.2870.2390.1800.5610.4490.3740.2800.8080.60.5390.4041.1000.8800.7330.5501.4361.1490.9570.718
1600.1770.1410.1180.0880.3140.2510.2090.1570.4910.3930.3270.2450.7070.5650.4710.3530.9620.7700.10.4811.2571.0050.8380.628
1800.1570.1260.1050.0790.2790.2230.1860.1400.4360.3490.2910.2180.6280.5030.4190.3140.8550.6840.5700.4281.1170.40.7450.559
2000.1410.1130.0940.0710.2510.2010.1680.1260.3930.3140.2620.1960.5650.4520.3770.2830.7700.6160.5130.3851.0050.8040.6700.503
2500.1130.0900.0750.0570.2010.1610.1340.1010.3140.2510.2090.1570.4520.3620.3020.2260.6160.4930.4110.3080.8040.30.5360.402
3000.0940.0750.0630.0470.1680.1340.1120.0840.2620.2090.1750.1310.3770.3020.2510.1880.5130.4110.3420.2570.6700.5360.4470.335
3500.0810.0650.0540.0400.1440.1150.0960.0720.2240.1800.1500.1120.3230.2590.2150.1620.4400.3520.2930.2200.5740.4600.3830.287
4000.0710.0570.0470.0350.1260.1010.0840.0630.1960.1570.1310.0980.2830.2260.1880.1410.3850.3080.2570.1920.5030.4020.3350.251
4500.0630.0500.0420.0310.1120.00.0740.0560.1750.1400.1160.0870.2510.2010.1680.1260.3420.2740.2280.1710.4470.3570.2980.223
5000.0570.0450.0380.0280.1010.0800.0670.0500.1570.1260.1050.0790.2260.1810.1510.1130.3080.2460.2050.1540.4020.3220.2680.201
制表公式:,为钢筋间距。

表6      受弯构件、偏心受拉构件、轴心受拉构件一侧的受拉钢筋的最小配筋百分率(0.2和45ft/fy中的较大值)(%)

砼强度等级C15C20C25C30C35C40C45C50C55C60C65C70C75C80

HPB235( )

0.200.240.270.310.340.370.390.410.420.440.450.460.470.48
HRB335( )

0.14

0.20

0.17

0.20

0.19

0.20

0.210.240.260.270.280.290.310.310.320.330.33
HRB400( )

0.11

0.20

0.14

0.20

0.16

0.20

0.18

0.20

0.200.210.220.240.250.250.260.270.270.28

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