Calculating overhead crane big wheel pressure factors to be considered

How large number of construction plant cost savings presumably each investor concerns, and now, for you to solve how to more accurately calculate the overhead  steel crane  big wheel pressure:
(1) if the maximum lifting load, which should be based on the actual needs of the car position calculation. In general, when the crane lifting the maximum load, often in a car near the middle of the main beam, then the cart wheel pressure is clearly better than the car is in the end when the main beam is much smaller.
(2) If the car runs to the end of the main beam,overhead gantry crane the load should be based on the actual amount of time to calculate. In general, when the car runs to the end of the main beam, it is usually not lifting the maximum load, then the cart wheel pressure is clearly better than lifting the maximum load is much smaller.
(3) If the car is neither lifted nor maximum load is the minimum load, and run in the middle of the main beam and the end portion. Should be based on the curve shown in Figure 1 to determine the actual maximum wheel load.
In summary, in the past on the bridge crane carts wheel pressure calculation method is not perfect, accuracy is poor, resulting in calculated  hoist gantry crane  wheel pressure is too large, plant design is too conservative and caused a lot of waste. Increased safety should be based on the correct algorithm and the use of advanced scientific

Technical means and the right measures to complete (such as increasing the safety factor, increasing the limit and warning measures). This will not only reduce the maximum crane wheel pressure, and can save a lot of ground plant cost.