Crane Lateral and Longitudinal Loads

[BSVBD]

Top Running Single Girder Crane

(1) Bridge, (1) End Truck (each end of bridge), (2) 13K Wheel Loads at (1) End Truck, (2) Wheel Loads on (1)/(Each) Runway

Lateral Loads are 20% of wheel loads = 0.2 x 13K = 2.6K Lateral Load

Logitudinal Loads are 10% of wheel loads = 0.1 x 13K = 1.3K Longitudinal Load

Do I apply (1) 2.6K Lateral & (1) 1.3K Longitudinal Load for each Bridge?

** OR **

Do I apply (2) 2.6K Lateral Loads, (1) at each wheel location? And (2) in-line 2.6K Longitudinal Loads for (1) 5.2K Linear Longitudinal Load?

Thank you for your replies!

 

[canwesteng]

Apply the latter. Longitudinal technically only occurs on the driven wheels but the exact location of the 2.6k isn't that important.