选型指引
钢格板选型
钢格板选型,要根据支撑梁的跨距和所需荷载大小来决定。通常要求在受荷情况下,钢格板变形挠度应小于5mm,以确保安全。
钢格板型号标识
钢格板型号标识
说明:以上型号是国标标识方法,市场上还有一些厂家自行标识方法,我们可帮您转换
钢格板承载扁钢间距常规为30mm、40mm、60mm。其中30mm比较常用,40mm较经济,60mm主要用于采矿工业。实际工作中也会用到其他间距。
您可参考以下参数表进行选型,其中后两张表格为比较常用选型表。
一、扁钢间距30mm 钢格板的安全荷载及其挠度表
型号 | 横杆间距(mm) | 自重(Kg/m2) | 扁钢规格(mm) | 跨距(mm) | ||||||||||||||||
150 | 300 | 450 | 600 | 750 | 900 | 1050 | 1200 | 1500 | 1800 | 2100 | 2400 | 2700 | 3000 | 3300 | 3600 | |||||
G203/30/100 | 100 | 21.5 | 20×3 | U | 402 | 100 | 45 | 25 | 16 | 11 | 8 | 6 | 4 | 3 | 2 | |||||
G205/30/100 | 100 | 33.6 | 20×5 | U | 671 | 167 | 74 | 42 | 27 | 18 | 13 | 10 | 6 | 4 | 3 | |||||
G253/30/100 | 100 | 26.0 | 25×3 | U | 629 | 157 | 70 | 39 | 25 | 17 | 13 | 10 | 6 | 4 | 3 | 2 | ||||
G253/30/50 | 50 | 29.3 | 0.16 | 0.64 | 1.45 | 2.57 | 4.02 | 5.8 | 7.88 | 10.3 | 23.17 | 31.53 | 41.18 | |||||||
G255/30/100 | 100 | 41.1 | 25×5 | U | 1048 | 262 | 115 | 65 | 42 | 29 | 21 | 16 | 10 | 7 | 5 | 4 | ||||
G255/30/50 | 50 | 44.4 | 0.16 | 0.64 | 1.45 | 2.57 | 4.02 | 5.79 | 7.88 | 10.3 | 23.17 | 31.53 | 41.18 | |||||||
G323/30/100 | 100 | 32.3 | 32×3 | U | 1031 | 257 | 114 | 64 | 41 | 28 | 21 | 16 | 10 | 7 | 5 | 4 | 3 | |||
G323/30/50 | 50 | 35.7 | 0.13 | 0.5 | 1.13 | 2.01 | 3.14 | 4.52 | 6.16 | 8.04 | 12.57 | 24.63 | 32.18 | 40.72 | ||||||
G325/30/100 | 100 | 51.7 | 32×5 | U | 1718 | 429 | 190 | 107 | 68 | 47 | 35 | 26 | 17 | 11 | 8 | 6 | 5 | 4 | ||
G325/30/50 | 50 | 55.0 | 0.13 | 0.5 | 1.13 | 2.01 | 3.14 | 4.52 | 6.16 | 8.04 | 12.57 | 24.63 | 32.18 | 40.72 | 40.22 | |||||
G403/30/100 | 100 | 39.6 | 40×3 | U | 1610 | 402 | 179 | 100 | 64 | 44 | 33 | 25 | 16 | 11 | 8 | 6 | 5 | |||
G403/30/50 | 50 | 42.9 | 0.1 | 0.4 | 0.9 | 1.61 | 2.51 | 3.62 | 4.93 | 6.44 | 10.05 | 19.71 | 25.74 | 32.58 | ||||||
G385/30/100 | 100 | 60.8 | 40×5 | U | 2684 | 671 | 298 | 167 | 107 | 74 | 54 | 41 | 26 | 16 | 12 | 9 | 7 | 6 | ||
G385/30/50 | 50 | 64.1 | 0.1 | 0.4 | 0.9 | 1.61 | 2.51 | 3.62 | 4.93 | 6.44 | 10.05 | 27.09 | 34.29 | 42.34 | ||||||
G405/30/100 | 100 | 63.8 | 45×5 | U | 3397 | 849 | 377 | 212 | 135 | 94 | 69 | 52 | 33 | 23 | 23 | 17 | 8 | 6 | ||
G405/30/50 | 50 | 67.1 | 0.09 | 0.34 | 0.8 | 1.43 | 2.23 | 3.22 | 4.38 | 5.72 | 8.94 | 12.87 | 32.58 | 40.22 | ||||||
G505/30/100 | 100 | 78.9 | 50×5 | U | 4149 | 1048 | 465 | 261 | 167 | 115 | 85 | 65 | 41 | 28 | 21 | 16 | 12 | 10 | 8 | 7 |
G505/30/50 | 50 | 82.2 | 0.08 | 0.32 | 0.72 | 1.29 | 2.01 | 2.9 | 3.94 | 5.15 | 8.04 | 15.77 | 20.59 | 32.18 | 38.93 | 46.33 | ||||
G655/30/100 | 100 | 101.6 | 65×5 | U | 7088 | 1771 | 787 | 442 | 283 | 196 | 144 | 110 | 70 | 48 | 35 | 27 | 21 | 17 | 14 | 9 |
G655/30/50 | 50 | 104.9 | 0.06 | 0.25 | 0.56 | 0.99 | 1.55 | 2.23 | 3.03 | 3.96 | 6.19 | 12.13 | 15.84 | 20.05 | 29.95 | 35.64 |
注:红字左边为4Kpa均布荷载之下,挠度≤5mm的相应跨距,这是行人步履相对舒服的挠度。
相应齿型钢格板的换算系数
承载扁钢 | 20×3 | 20×5 | 25×3 | 25×4.5 | 25×5 | 32×3 | 32×4.5 | 32×5 | 35×4.5 | 35×5 | 38×5 | 40×3 | 40×5 | 45×5 | 50×5 | 65×5 |
载荷 | 不推荐 | 0.79 | 0.79 | 0.79 | 0.83 | 0.83 | 0.83 | 0.85 | 0.85 | 0.86 | .87 | 0.87 | 0.88 | 0.89 | 0.92 | |
挠度 | 1.12 | 1.12 | 1.12 | 1.09 | 1.09 | 1.09 | 1.08 | 1.08 | 1.07 | 1.07 | 1.07 | 1.07 | 1.06 | 1.04 |
荷载表说明
◆ U=外加安全均布面荷载,单位:Kpa
◆ D=变形挠度,单位:mm
◆ 钢格板的理算自重是按原板计算的
◆ 荷载是按许用挠曲应力171.6Mpa(0.66Fy)计算的
二、扁钢间距40mm 钢格板的安全荷载及其挠度表
型号 | 横杆 | 理算 | 扁钢 | 跨距 | ||||||||||||||||
150 | 300 | 450 | 600 | 750 | 900 | 1050 | 1200 | 1500 | 1800 | 2100 | 2400 | 2700 | 3000 | 3300 | 3600 | |||||
G203/40/100 | 100 | 17.4 | 20×3 | U | 305 | 76 | 34 | 19 | 12 | 8 | 6 | 5 | 3 | 2 | 1 | |||||
G253/40/100 | 100 | 21.0 | 20×5 | U | 508 | 127 | 56 | 32 | 20 | 14 | 10 | 8 | 5 | 3 | 2 | |||||
G255/40/100 | 100 | 32.7 | 25×3 | U | 476 | 119 | 53 | 30 | 19 | 13 | 10 | 7 | 5 | 3 | 2 | 2 | ||||
G323/40/100 | 100 | 25.9 | 25×5 | U | 794 | 198 | 88 | 49 | 31 | 22 | 16 | 12 | 8 | 5 | 4 | 3 | ||||
G325/40/100 | 100 | 40.9 | 32×3 | U | 781 | 195 | 87 | 49 | 31 | 21 | 16 | 12 | 8 | 5 | 4 | 3 | 2 | |||
G403/40/100 | 100 | 31.5 | 32×5 | U | 1301 | 325 | 144 | 81 | 52 | 36 | 26 | 20 | 13 | 9 | 6 | 5 | 4 | |||
G385/40/100 | 100 | 48.0 | 40×5 | U | 1220 | 305 | 135 | 76 | 49 | 34 | 25 | 19 | 12 | 8 | 6 | 4 | 3 | 3 | ||
G405/40/100 | 100 | 50.4 | 40×5 | U | 2033 | 508 | 226 | 127 | 81 | 56 | 41 | 31 | 20 | 14 | 10 | 8 | 6 | 5 | ||
G505/40/100 | 100 | 62.1 | 50×5 | U | 3177 | 794 | 353 | 198 | 127 | 88 | 64 | 49 | 31 | 22 | 16 | 12 | 9 | 7 | 6 | 5 |
G655/40/100 | 100 | 79.8 | 65×5 | U | 5370 | 1342 | 596 | 335 | 214 | 149 | 109 | 83 | 53 | 37 | 27 | 20 | 16 | 13 | 10 | 9 |
注:红字左边为4Kpa均布荷载之下,挠度≤5mm的相应跨距,这是行人步履相对舒服的挠度。
相应齿型钢格板的换算系数
承载扁钢 | 20×3 | 20×5 | 25×3 | 25×4.5 | 25×5 | 32×3 | 32×4.5 | 32×5 | 35×4.5 | 35×5 | 38×5 | 40×3 | 40×5 | 45×5 | 50×5 | 65×5 |
载荷 | 不推荐 | 0.79 | 0.79 | 0.79 | 0.83 | 0.83 | 0.83 | 0.85 | 0.85 | 0.86 | .87 | 0.87 | 0.88 | 0.89 | 0.92 | |
挠度 | 1.12 | 1.12 | 1.12 | 1.09 | 1.09 | 1.09 | 1.08 | 1.08 | 1.07 | 1.07 | 1.07 | 1.07 | 1.06 | 1.04 |
三、扁钢间距60mm 钢格板的安全荷载及其挠度表
型号 | 横杆间距(mm) | 理算自重(Kg/m2) | 扁钢规格(mm) | 跨距 | ||||||||||||||||
150 | 300 | 450 | 600 | 750 | 900 | 1050 | 1200 | 1500 | 1800 | 2100 | 2400 | 2700 | 3000 | 3300 | 3600 | |||||
G205/60/50 | 50 | 23.4 | 20×5 | U | 325 | 81 | 36 | 20 | 13 | 9 | 6 | 5 | 3 | 2 | 1 | |||||
G253/60/50 | 50 | 19.2 | 25×3 | U | 305 | 76 | 34 | 19 | 12 | 8 | 6 | 5 | 3 | 2 | 1 | 1 | ||||
G255/60/50 | 50 | 27.6 | 25×5 | U | 508 | 127 | 56 | 32 | 20 | 14 | 10 | 8 | 5 | 3 | 2 | 2 | ||||
G323/60/50 | 50 | 22.8 | 32×3 | U | 500 | 125 | 55 | 31 | 20 | 14 | 10 | 8 | 5 | 3 | 2 | 2 | 1 | |||
G325/60/50 | 50 | 33.5 | 32×5 | U | 833 | 208 | 92 | 52 | 33 | 23 | 17 | 13 | 8 | 6 | 4 | 3 | 2 | |||
G403/60/50 | 50 | 26.8 | 40×3 | U | 781 | 195 | 87 | 49 | 31 | 21 | 16 | 12 | 8 | 5 | 4 | 3 | 2 | 2 | ||
G405/60/50 | 50 | 40.2 | 40×5 | U | 1301 | 325 | 144 | 81 | 52 | 36 | 26 | 20 | 13 | 9 | 6 | 5 | 4 | 3 | ||
G455/60/50 | 50 | 44.4 | 45×5 | U | 1647 | 411 | 183 | 103 | 66 | 45 | 33 | 25 | 16 | 11 | 8 | 6 | 5 | 4 | 3 | |
G505/60/50 | 50 | 48.6 | 50×5 | U | 2033 | 508 | 226 | 127 | 81 | 56 | 41 | 31 | 20 | 14 | 10 | 8 | 6 | 5 | 4 | |
G655/60/50 | 50 | 61.2 | 65×5 | U | 3437 | 859 | 381 | 214 | 137 | 95 | 70 | 53 | 34 | 23 | 17 | 13 | 10 | 8 | 7 | 5 |
注:红字左边为4Kpa均布荷载之下,挠度≤5mm的相应跨距,这是行人步履相对舒服的挠度。
相应齿型钢格板的换算系数
承载扁钢 | 20×3 | 20×5 | 25×3 | 25×4.5 | 25×5 | 32×3 | 32×4.5 | 32×5 | 35×4.5 | 35×5 | 38×5 | 40×3 | 40×5 | 45×5 | 50×5 | 65×5 |
载荷 | 不推荐 | 0.79 | 0.79 | 0.79 | 0.83 | 0.83 | 0.83 | 0.85 | 0.85 | 0.86 | .87 | 0.87 | 0.88 | 0.89 | 0.92 | |
挠度 | 1.12 | 1.12 | 1.12 | 1.09 | 1.09 | 1.09 | 1.08 | 1.08 | 1.07 | 1.07 | 1.07 | 1.07 | 1.06 | 1.04 |
较常用选型表