Skip to main content
Speclore

美国宽翼缘工字钢梁

关于美国宽翼缘工字钢梁在材料性能应用方面的参考数据与工程信息。

americanwideflangesteel

概述

美国宽翼缘工字钢梁(W型梁)是依据 ASTM A6 标准化的结构型钢截面。其垂直于腹板的宽翼缘提供了对两个主轴的高抗弯能力,使其成为楼板框架、屋面梁和桥梁构件的最常见选择。

其标注格式为 W [截面高度(英寸)] × [单位长度重量(磅/英尺)] —— 例如,W 24 × 104 名义上深度为 24 英寸,每线性英尺重量为 104 磅力。

hwstxy
American wide flange beam cross-section dimensions

关键公式

弯曲应力

σ=McIx\sigma = \frac{M \cdot c}{I_x}

其中 M 是施加的弯矩,c 是从中性轴到最外纤维的距离(对于 W 型梁大约为 h/2),I_x 是强轴惯性矩。

弹性截面模量

Sx=IxcS_x = \frac{I_x}{c}

截面模量将几何形状合并为一个单一值,使得 σ=M/Sx\sigma = M / S_x

变量

符号说明单位
σ\sigma弯曲应力psi
MM弯矩lbf·in
cc中性轴到最外纤维的距离in
IxI_x强轴惯性矩in⁴
SxS_x强轴弹性截面模量in³

梁特性 — 选定尺寸

常见 W 型梁规格(ASTM A6)的代表性英制特性。

15
选定美国宽翼缘梁特性(ASTM A6,英制单位)
规格
高度 h(in)
宽度 w(in)
腹板厚度 tw(in)
翼缘厚度 tf(in)
面积(in²)
重量(lbf/ft)
Ix(in⁴)
Iy(in⁴)
Sx(in³)
Sy(in³)
W 27 x 17827.814.090.7251.1952.3178699059050283.7
W 27 x 9426.9100.490.74527.794327012424324.8
W 24 x 13124.512.90.6050.9638.5131402034032953
W 24 x 6823.78.970.4150.58520.168183070.415415.7
W 21 x 11121.512.340.550.87532.7111267024824940.2
W 21 x 5020.86.530.380.53514.75098424.994.57.64
W 18 x 7618.211.040.4250.6822.376133015214627.6
W 18 x 3517.760.30.42510.33551015.357.65.12
W 14 x 8214.3110.130.510.85524.18288214812329.3
W 14 x 3413.986.7450.2850.455103434023.348.66.91
W 12 x 7212.2512.040.430.6721.17259719597.432.4
W 12 x 2612.226.490.230.387.72620417.333.45.34
W 10 x 499.98100.340.5614.44927293.454.618.7
W 10 x 1910.244.020.250.3955.61996.34.2918.82.14
W 8 x 408.258.070.360.5611.74014649.135.512.2

来源: engineeringtoolbox.com

计算器 — 根据施加的弯矩计算弯曲应力

弯曲应力检查

W型梁单位转换器

计算荷载

原始资料引导读者查阅梁荷载计算工具,包括两端简支梁、一端固定一端简支梁和两端固定梁。以下计算器保留了在该迁移页面上最常用的功能等效项。

简支梁 - 均布荷载

简支梁 - 中心点荷载

悬臂梁 - 端点载荷

原始文本保留

工程工具箱 - 工程与技术应用设计的资源、工具和基本信息。

W型梁 - 宽翼缘梁 - 是结实、坚固的梁,其宽翼缘垂直于材料腹板布置,赋予其独特形状,并区别于I型梁。根据ASTM A6标准,美国宽翼缘梁的英制单位性能如下所示。要查看包含深度、宽度、腹板和翼缘厚度以及截面面积的完整表格,请将窄屏幕水平旋转。

根据ASTM A6标准的美国宽翼缘梁 - 公制单位。

根据ASTM A6标准的美国宽翼缘梁 - 公制单位

要查看包含深度、宽度、腹板和翼缘厚度以及截面面积的完整表格 - 请旋转屏幕!

美国宽翼缘梁尺寸的标准指定方法是例如W 6 x 25,深度为6英寸,重量为25磅/英尺。相关的I形截面梁系列包括英国通用梁和通用柱、欧洲IPE/HE/HL/HD截面以及美国宽翼缘梁和H型截面。

下面完整的恢复源表保留了原始的英制W型梁形状数据。源表有135个非空行:3个分组标题行加上132个W型梁数据行。下面的DataTable将这些132个梁行作为数据行保留,并将分组标题信息保留在列标签中。公制转换应使用上面的转换器从表格中的英制值进行;检查完整表格时请将窄屏幕水平旋转。

恢复的原始源表

以下表格从原始源页面恢复,以保留完整的参考数据。

W型梁 - 美国宽翼缘梁 - 静态参数

132
W-Beams - American Wide Flange Beams - Static Parameters
Ix (in4)
Iy (in4)
Sx (in3)
Sy (in3)
翼缘厚度 tf(in)
截面面积 (in2)
重量 (lbf/ft)
静态参数
静态参数
静态参数
静态参数
W 27 x 17827.814.090.7251.1952.3178699055550278.8
W 27 x 16127.614.020.661.0847.4161628049745570.9
W 27 x 14627.4140.6050.97542.9146563044341163.5
W 27 x 11427.310.070.570.9333.5114409015929931.5
W 27×10227.110.020.5150.8330102362013926727.8
W 27 x 9426.9100.490.74527.794327012424324.8
W 27 x 8426.79.960.460.6424.884285010621321.2
W 24 x 16225130.7051.2247.7162517044341468.4
W 24 x 14624.712.90.651.0943146458039137160.5
W 24 x 13124.512.90.6050.9638.5131402034032953
W 24 x 11724.312.80.550.8534.4117354029729146.5
W 24×10424.112.750.50.7530.6104310025925840.7
W 24 x 9424.19.070.5150.87527.794270010922224
W 24 x 8424.19.020.470.7724.784237094.419620.9
W 24 x 7623.990.440.6822.476210082.517618.4
W 24 x 6823.78.970.4150.58520.168183070.415415.7
W 24 x 6223.77.040.430.5918.262155034.51319.8
W 24 x 5523.67.010.3950.50516.255135029.11148.3
W 21 x 14722.112.510.721.1543.2147363037632960.1
W 21 x 13221.812.440.651.03538.8132322033329553.5
W 21 x 12221.712.390.60.9635.9122296030527349.2
W 21 x 11121.512.340.550.87532.7111267027424944.5
W 21×10121.412.290.50.829.8101242024822740.3
W 21 x 9321.68.420.580.9327.393207092.919222.1
W 21 x 8321.48.360.5150.83524.383183081.417119.5
宽 21 x 7321.28.30.4550.7421.573160070.615117
宽 21 x 6821.18.270.430.6852068148064.714015.7
宽 21 x 62218.240.40.61518.362133057.512713.9
宽 21 x 5721.16.560.4050.6516.757117030.61119.4
宽 21 x 5020.86.530.380.53514.75098424.994.57.6
宽 21 x 4420.76.50.350.45134484320.781.66.4
宽 18 x 1191911.270.6551.0635.1119219025323144.9
宽 18×10618.711.20.590.9431.1106191022020439.4
宽 18 x 9718.611.150.5350.8728.597175020118836.1
宽 18 x 8618.411.090.480.7725.386153017516631.6
宽 18 x 7618.211.040.4250.6822.376133015214627.6
宽 18 x 7118.57.640.4950.8120.871117060.312715.8
宽 18 x 6518.47.590.450.7519.165107054.811714.4
宽 18 x 6018.27.560.4150.69517.66098450.110813.3
宽 18 x 5518.17.530.390.6316.25589044.998.311.9
宽 18 x 50187.50.3550.5714.75080040.188.910.7
宽 18 x 4618.16.060.360.60513.54671222.578.87.4
宽 18 x 4017.96.020.3150.52511.84061219.168.46.4
宽 18 x 3517.760.30.42510.33551015.357.65.1
宽 16×10016.9710.4250.5850.98529.4100149018617535.7
宽 16 x 8916.7510.3650.5250.87526.289130016315531.4
宽 16 x 7716.5210.2950.4550.7622.677110013813426.9
宽 16 x 6716.3310.2350.3950.66519.76795411911723.2
宽 16 x 5716.437.120.430.71516.85775843.192.212.1
宽 16 x 5016.267.070.380.6314.75065937.28110.5
宽 16 x 4516.137.0350.3450.56513.34558632.872.79.3
宽 16 x 4016.016.9950.3050.50511.84051828.964.78.3
宽 16 x 3615.866.9850.2950.4310.63644824.556.57
宽 16 x 3115.885.5250.2750.449.123137512.447.24.5
宽 16 x 2615.695.50.250.3457.68263019.638.43.5
宽 14 x 13214.6614.7250.6451.0338.8132153054820974.5
宽 14 x 12014.4814.670.590.9435.3120138049519067.5
宽 14×10914.3214.6050.5250.8632109124044717361.2
宽 14 x 9914.1614.5650.4850.7829.199111040215755.2
宽 14 x 9014.0214.520.440.7126.59099936214349.9
宽 14 x 8214.3110.130.510.85524.18288214812329.3
宽 14 x 7414.1710.070.450.78521.87479613411226.6
宽 14 x 6814.0410.0350.4150.72206872312110324.2
宽 14 x 6113.899.9950.3750.64517.96164010792.221.5
宽 14 x 5313.928.060.370.6615.65354157.777.814.3
宽 14 x 4813.798.030.340.59514.14848551.470.312.8
宽 14 x 4313.667.9950.3050.5312.64342845.262.711.3
宽 14 x 3814.16.770.310.51511.23838526.754.67.9
宽 14 x 3413.986.7450.2850.455103434023.348.66.9
宽 14 x 3013.846.730.270.3858.853029119.6425.8
宽 14 x 2613.915.0250.2550.427.69262458.935.33.5
宽 14 x 2213.7450.230.3356.49221997292.8
宽 12 x 13613.4112.40.791.2539.9136124039818664.2
宽 12 x 12013.1212.320.711.10535.3120107034516356
宽 12×10612.8912.220.610.9931.210693330114549.3
宽 12 x 9612.7112.160.550.928.29683327013144.4
宽 12 x 8712.5312.1250.5150.8125.68774024111839.7
宽 12 x 7912.3812.080.470.73523.27966221610735.8
宽 12 x 7212.2512.040.430.6721.17259719597.432.4
宽 12 x 6512.12120.390.60519.16553317487.929.1
宽 12 x 5812.1910.010.360.6417584751077821.4
宽 12 x 5312.069.9950.3450.57515.65342595.870.619.2
宽 12 x 5012.198.080.370.6414.75039456.364.713.9
宽 12 x 4512.068.0450.3350.57513.2453505058.112.4
宽 12 x 4011.948.0050.2950.51511.84031044.151.911
W 12 x 3512.56.560.30.5210.33528524.545.67.5
W 12 x 3012.346.520.260.448.83023820.338.66.2
W 12 x 2612.226.490.230.387.72620417.333.45.3
W 12 x 2212.314.030.260.4256.5221564.725.42.3
W 12 x 1912.164.0050.2350.355.6191303.821.31.9
W 12 x 1611.993.990.220.2654.7161032.817.11.4
W 12 x 1411.913.970.20.2254.21488.62.414.91.2
W 10 x 11211.3610.4150.7551.2532.911271623612645.3
W 10×10011.110.340.681.11229.410062320711240
W 10 x 8810.8410.2650.6050.9925.98853417998.534.8
W 10 x 7710.610.190.530.8722.67745515485.930.1
W 10 x 6810.410.130.470.77206839413475.726.4
W 10 x 6010.2210.080.420.6817.66034111666.723
W 10 x 5410.0910.030.370.61515.8543031036020.6
W 10 x 499.98100.340.5614.44927293.454.618.7
W 10 x 4510.18.020.350.6213.34524853.449.113.3
W 10 x 399.927.9850.3150.5311.5392094542.111.3
W 10 x 339.737.960.290.4359.713317036.6359.2
W 10 x 3010.475.810.30.518.843017016.732.45.8
W 10 x 2610.335.770.260.447.62614414.127.94.9
W 10 x 2210.175.750.240.366.52211811.423.24
W 10 x 1910.244.020.250.3955.61996.34.318.82.1
W 10 x 1710.114.010.240.3351781.93.616.21.8
W 10 x 159.9940.230.274.41568.92.913.81.5
W 10 x 129.873.960.190.213.51253.82.210.91.1
W 8 x 6798.280.570.93519.76727288.660.421.4
W 8 x 588.758.220.510.8117.15822875.15218.3
W 8 x 488.58.110.40.68514.14818460.943.315
W 8 x 408.258.070.360.5611.74014649.135.512.2
W 8 x 358.128.020.310.49510.33512742.631.210.6
W 8 x 3187.9950.2850.4359.13111037.127.59.3
W 8 x 288.066.5350.2850.4658.3289821.724.36.6
W 8 x 247.936.4950.2450.47.12482.818.320.95.6
W 8 x 218.285.270.250.46.22175.39.818.23.7
W 8 x 188.145.250.230.335.31861.9815.23
W 8 x 158.114.0150.2450.3154.415483.411.81.7
W 8 x 137.9940.230.2553.81339.62.79.91.4
W 8×107.893.940.170.2052.91030.82.17.81.1
W 6 x 256.386.080.320.4557.32553.417.116.75.6
W 6 x 206.26.020.260.3655.92041.413.313.44.4
W 6 x 166.284.030.260.4054.71632.14.410.22.2
W 6 x 155.995.990.230.264.41529.19.39.73.1
W 6 x 126.0340.230.283.61222.137.31.5
W 6 x 95.93.940.170.2152.7916.42.25.61.1
W 5 x 195.155.030.270.435.51926.29.110.23.6
W 5 x 165.0150.240.364.71621.37.58.53
W 4 x 134.164.060.280.3453.81311.33.95.51.9

来源: engineeringtoolbox.com

工程笔记

  • ASTM A6 公差覆盖深度、翼缘宽度、腹板平直度和弯曲度。对于关键应用,始终验证工厂证书。
  • 紧凑与非紧凑翼缘:受压翼缘的局部屈曲行为取决于 b/t 比率(翼缘宽厚比)。查阅 AISC 360 表 B4.1b 以对每个截面进行分类。
  • 侧向扭转屈曲在无支撑长度超过 LpL_p 时降低可用弯矩承载力。表格中的 Sx 仅适用于具有足够支撑的塑性或紧凑范围。
  • 深度与重量权衡:在标称深度组中,较重的型号具有更厚的翼缘和腹板,在增加重量的同时提高了 Ix 和腹板抗剪能力。
  • 连接:宽翼缘为螺栓连接剪切板和弯矩端板细节提供了充足的表面。仍必须根据 AISC 检查最小边缘距离与翼缘宽度。
  • 公制等效值可从 ASTM A6 获取相同形状系列;标称深度被转换并四舍五入到最接近的毫米。

参考文献