约束边缘构件箍筋间距计算

1、近似计算箍筋间距（一、二及约束边缘构件配筋构造按平均肢距控制纵筋间距） 墙厚度大于300时中间加一拉条，拉条直径同小箍筋保护层=15保护层=15平均肢距=150fy = 360C25fc= 11.9P v= 0.66%非约束厚度P v大箍直径小箍直径160180200250300350400450500550230.66%88184.1164.2149.4125.2110.6125.7115.1107.1100.995.9250.66%108266.7233.5209.1169.5145.7155.2140.3129.1120.4113.4250.66%1010295.2262.0237.61

2、98.0174.2198.0181.0168.3158.4150.5270.66%128373.5322.2285.0225.3189.8192.0171.5156.3144.4135.0270.66%1210402.0350.7313.5253.8218.3234.9212.4195.6182.6172.1270.66%1212436.8385.6348.4288.6253.1287.4262.4243.6229.1217.5C30保护层=15fy =360C30fc=14.3P v=0.79%非约束厚度P v大箍直径小箍直径:16018020025030035040045050055023

3、0.79%88153.2136.6124.4104.292.0104.695.889.284.079.8250.79%108221.9194.3174.0141.0121.3129.2116.8107.4100.294.4250.79%1010245.7218.0197.7164.8145.0164.8150.6140.1131.8125.2270.79%128310.8268.1237.2187.4157.9159.7142.8130.1120.2112.3270.79%1210334.5291.9260.9211.2181.6195.5176.8162.8151.9143.2270.79%

4、1212363.5320.9289.9240.2210.6239.2218.3202.8190.7181.0:保护层=15fy =360C35fc=16.7P v=0.93%非约束厚度P v大箍直径小箍直径16018020025030035040045050055023r 0.93%88131.2117.0106.589.278.889.682.076.471.968.4250.93%108190.0166.4149.0120.8103.8110.6100.092.085.880.8250.93%1010210.4186.7169.3141.1124.2141.1129.0119.9112.9

5、107.2270.93%128266.1229.6203.1160.5135.2136.8122.2111.4102.996.2270.93%1210286.4249.9223.4180.8155.5167.4151.4139.4130.1122.7270.93%1212311.3274.8248.3205.7180.4204.8187.0173.6163.3155.0保护层=15fy =360C40fc= 19.1P v= 1.06%非约束厚度P v大箍直径小箍直径160180200250300350400450500550231.06%88114.7102.393.178.068.978.

6、371.766.862.959.8251.06%108166.2145.5130.3105.690.896.787.480.475.070.7251.06%1010183.9163.2148.0123.4108.6123.4112.8104.998.793.8271.06%128232.7200.8177.6140.3118.2119.6106.997.490.084.1271.06%1210250.4218.5195.3158.1136.0146.4132.3121.9113.7107.2271.06%1212272.2240.2217.1179.8157.7179.1163.5151.81

7、42.7135.5保护层=15fy =360C45fc=21.1P v=1.17%非约束厚度P v大箍直径小箍直径160180200250300350400450500550231.17%88103.892.684.370.662.470.964.960.456.954.1251.17%108150.4131.7117.995.682.287.579.172.867.964.0251.17%1010166.5147.7134.0111.798.3111.7102.194.989.384.9271.17%128210.6181.7160.8127.0107.0108.396.788.181.57

8、6.1271.17%1210226.7197.8176.8143.1123.1132.5119.8110.3103.097.1271.17%1212246.4217.5196.5162.8142.8162.1148.0137.4129.2122.7:保护层=15fy =360C50fc=23.1P v=1.28%非约束厚度P v大箍直径小箍直径160180200250300350400450500550231.28%8894.884.677.064.557.064.859.355.252.049.4251.28%108137.4120.3107.787.375.180.072.366.562.058.4251.28%1010152.1135.0122.4102.089.8102.093.386.781.677.5271.28%128192.4166.0146.8116.097.898.988.48