Calculation of FRP grating loading capacity

The Calculation of FRP Loading Capacity

 

Some customers may wonder how the bearing capacity of the FRP grating plate is calculated. Let’s talk about it briefly today.

Under normal circumstances, according to the thickness calculation, such as: 25mm – 1 ton, 30mm – 3 tons, 38mm – 6 tons, 50mm – 9 tons; the car wash glass grille plate is standard 38mm. The bearing capacity is about 4 tons (the FRP grating plate bearing capacity can be calculated according to the building material industry standard JC/T1026-2007 to calculate the glass fiber reinforced thermosetting resin carrying type grid).

There are three ways to calculate loading capacity of FRP gratings: concentrated full panel load (point load), line load and uniform load.

Concentrated full panel load (point load) trial is mainly designed for human loading capacity. The trial area is like a man’s footprint (75mmx300mm). The standard installation data is mainly based on a man’s comfortable walking and security. The maximum deflection should be less than 12mm or less than 1% of the span.

Concentrated line load trial is to use an equilateral triangle block and one of its angles will be pressed on the grating to test the deformation under the stress condition. It’s mainly for the directional load, such as the tires or the pultruded gratings whose supporting material is in different directions.

The uniform load trial provides the basic mechanical data for the platform design. Generally, the uniform load of the manned platform is not less than 200kg/sqm; The uniform load of equipment maintenance platform is no less than 500kg/sqm.

Destructive static test value (concentrated full panel load) is generally more than 6 times when the value of deflection is 1%. The maximum load should be less than 1/3 of the destructive static test value.

Nantong Mach’s does the above tests with S6001 pressure instrument which is imported from STS in America. The load test data are all in the condition of the parallel bilateral support of the grating. The mechanical property data will be better than the listed data if it’s the multilateral support.

FRP Mini Mesh Grating
线性负载 CONCENTRATED LOAD
跨距 Span 网孔尺寸         Mesh Size(mm) 厚度 Thickness(mm) 线性负载 Concentrated Load(kg/m) 最大荷载                 Max Load Capacity (kg/m)
      75 150 300 450 600 750  
300mm 38*38 25 <0.25 0.42 1.12 1.71 2.38 2.86 5970
  38*38 30 <0.25 0.28 0.88 1.45 2.27 2.62 9924
  38*38 38 / <0.25 0.52 0.78 1.17 1.54 17120
  40*40 40 / <0.25 0.3 0.52 0.67 0.78 17010
  50*50 50 0.28 0.31 0.41 0.47 0.63 0.72 22526
450mm 38*38 25 0.56 1.15 2.16 3.08 4.16 4.76 3910
  38*38 30 0.28 0.51 1.13 1.53 20.9 2.63 4828
  38*38 38 <0.25 0.47 0.91 1.36 1.86 2.33 12980
  40*40 40 <0.25 0.48 0.92 1.37 1.87 2.35 12680
  50*50 50 0.31 0.42 0.74 0.92 1.22 2.21 17078
600mm 38*38 25 0.87 1.71 3.51 5.2 6.72 / 2924
  38*38 30 0.53 1.29 2.31 3.62 4.82 5.96 4089
  38*38 38 0.36 0.65 1.25 1.35 2.47 3.08 8720
  40*40 40 0.38 0.67 1.28 1.89 2.51 3.38 8498
  50*50 50 0.35 0.58 1.06 1.76 2.16 2.56 11473
750mm 38*38 25 1.36 4.47 9.37 / / / 2287
  38*38 30 1.27 2.61 4.91 7.44 11.06 / 3175
  38*38 38 0.63 1.14 2.17 3.24 4.36 5.45 7270
  19*19/ 30 0.97 1.86 3.12 5.02 6.88 9.36 4820
  38*38                
  19*19/ 38 0.56 1.02 1.94 2.98 3.88 5.02 8827
  38*38                
  40*40 40 0.65 1.18 2.23 3.36 4.24 5.49 6970
  50*50 50 0.46 0.91 1.58 2.36 3.46 4.57 9566
900mm 38*38 25 2.91 5.92 12.12 / / / 1948
  38*38 30 1.79 3.91 7.76 11.51 / / 2641
  38*38 38 0.87 1.81 3.68 5.56 7.42 9.31 5817
  40*40 40 0.91 1.84 3.75 5.69 7.57 9.71 5537
  50*50 50 1.51 1.67 3.37 4.33 5.16 6.13 7780
1220mm 38*38 25 5.72 11.64 / / / / 1431
  38*38 30 3.61 7.91 14.37 / / / 2286
  38*38 38 2.26 4.75 9.68 14.63 / / 3755
  40*40 40 2.35 5.02 9.87 15.01 / / 3455
  50*50 50 1.67 3.41 6.94 8.72 10.52 13.32 5834

均布负载 UNIFORM LOAD

 

跨距 Span 网孔尺寸         Mesh Size(mm) 厚度 Thickness(mm) 均布负载 Uniform Load(kg/m) 最大荷载                 Max Load Capacity (kg/m)
150 350 500 750 1000 1500 2500
300mm 38*38 25 <0.25 <0.25 <0.25 <0.25 0.26 0.53 0.64 31625
38*38 30 <0.25 <0.25 <0.25 <0.25 <0.25 0.42 0.53 33000
38*38 38 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 0.42 41800
40*40 40 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 0.42 39710
50*50 50 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 0.39 53602
450mm 38*38 25 0.3 0.38 0.62 0.94 1.22 1.85 2.75 20759
38*38 30 0.25 0.32 0.52 0.78 1.02 1.54 2.29 21662
38*38 38 0.2 0.25 0.41 0.62 0.81 1.22 1.81 27439
40*40 40 0.2 0.25 0.41 0.62 0.81 1.22 1.81 26067
50*50 50 <0.25 <0.25 0.3 0.45 0.59 0.89 1.32 35186
600mm 38*38 25 0.98 1.24 1.85 2.75 3.35 5.18 8.86 12439
38*38 30 0.82 1.03 1.54 2.29 2.79 4.32 7.38 12980
38*38 38 0.65 0.81 1.22 1.81 2.2 5.64 14.1 16441
40*40 40 0.65 0.81 1.22 1.81 2.2 6.43 / 15619
50*50 50 0.47 0.59 0.89 1.32 1.61 4.69 6.13 21083
750mm 38*38 25 1.28 3.05 4.57 6.86 9.15 / / 7950
38*38 30 1.07 2.54 3.81 5.72 7.62 11.69 / 8296
38*38 38 0.48 2.01 3.01 4.51 6.92 / / 10508
40*40 40 0.84 2.01 3.01 4.51 8.91 / / 9983
50*50 50 0.62 1.46 2.19 3.29 6.5 9.23 / 13475
900mm 38*38 25 2.57 7.13 9.62 / / / / 5518
38*38 30 2.14 4.58 7.11 10.67 / / / 5758
38*38 38 1.69 3.62 5.61 8.42 / / / 7293
40*40 40 1.69 3.62 5.61 8.42 11.18 / / 6929
50*50 50 1.23 2.64 4.09 6.14 8.15 / / 9353
1220mm 38*38 25 7.1 9.9 12.46 / / / / 2827
38*38 30 5.91 8.25 11.78 / / / / 3392
38*38 38 4.67 6.51 9.3 13.95 / / / 4297
40*40 40 1.69 3.62 5.61 8.32 11.18 / / 6929
50*50 50 3.4 4.75 6.78 9.16 12.07 / / 5510

 

 

点负载 POINT LOAD

跨距 Span 网孔尺寸         Mesh Size(mm) 厚度 Thickness(mm) 点负载 Point Load(kg/m)
150 350 500 750 1000 1500 2500 3000
300mm 38*38 25 / 0.44 0.59 1.03 1.37 1.78 2.82 3.49
38*38 30 / 0.37 0.49 0.86 1.14 1.48 2.35 2.91
38*38 38 / 0.29 0.39 0.68 0.9 1.17 1.86 2.29
40*40 40 / 0.26 0.35 0.61 0.81 1.05 1.67 2.06
50*50 50 / 0.37 0.48 0.76 1.08 1.47 2.41 2.89
450mm 38*38 25 0.26 0.66 0.89 1.55 2.06 2.67 4.23 5.23
38*38 30 / 0.55 0.74 1.29 1.72 2.23 3.53 4.36
38*38 38 / 0.43 0.59 1.02 1.36 1.76 2.78 3.44
40*40 40 / 0.43 0.59 1.02 1.36 1.76 2.78 3.44
50*50 50 0.27 0.56 0.73 1.14 1.63 2.2 3.61 4.34
600mm 38*38 25 0.74 1.55 2.02 3.18 4.52 6.12 / /
38*38 30 0.62 1.29 1.68 2.65 3.77 5.1 8.37 /
38*38 38 0.49 1.02 1.33 2.09 2.97 4.03 6.71 /
40*40 40 0.47 0.98 1.25 1.89 2.69 3.78 6.51 /
50*50 50 0.39 0.83 1.08 1.69 2.41 3.26 5.35 6.42
750mm 38*38 25 1.26 2.94 3.78 5.99 8.79 / / /
38*38 30 1.05 2.45 3.15 4.99 7.33 / / /
38*38 38 0.83 1.93 2.49 3.94 5.78 7.84 / /
40*40 40 0.82 1.91 2.35 3.8 5.59 7.56 / /
50*50 50 0.67 1.57 2.01 3.19 4.68 6.33 9.87 /
900mm 38*38 25 1.78 4.32 5.53 8.81 13.06 / / /
38*38 30 1.48 3.6 4.61 7.34 10.88 / / /
38*38 38 1.17 2.84 3.64 5.8 8.59 11.65 / /
40*40 40 1.16 2.81 3.58 5.69 8.35 11.15 / /
50*50 50 0.95 2.3 2.95 4.69 6.96 10.11 / /
1220mm 38*38 25 2.95 7.42 10.38 15.06 / / / /
38*38 30 2.46 6.18 8.65 12.55 / / / /
38*38 38 1.94 4.88 6.83 9.91 14.56 / / /
40*40 40 1.93 4.85 6.68 9.7 14.31 / / /
50*50 50 1.57 3.95 5.53 8.02 10.71 15.53 / /

 

 


How to buy FRP Grating Machine from us?

Firstly, you need to send us all complete information then get a quotation. Information include below:

  • Dimension details of the machine you want to purchase, such as FRP grating mesh size, panel size you want to produce.
  • Mark if you need all auxiliary equipment of the machine.
  • Mark the quantity that you need.
  • Mark you need FOB or C&F price, if need C&F, please provide the destination port name.

Secondly,we send you quotation list according to confirmed details information.

Thirdly, after you accept price, we can sign a sales contract, then you make down payment.

The fourth, we arrange production – delivery goods- customer receive and install.

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