Apr 15, 2024 · There are four standard classes of highway vehicle loadings included in the Standard Specifications: H15, H20, HS15, and HS20. The AASHTO Geometric Guide states …

For two-axial trucks AASHTO designates these vehicles as H series trucks. For example, a H15-44 is a 15-ton truck as reported in the 1944 specifications. Trucks that pull trailers are …

TrueNorth Steel has provided this basic guide to AASHTO (American Association of State Highway and Transportation Oficials) Bridge Live Loads to assist with understanding the …

The fork lift wheel loads and load distribution patterns depicted above, generally, and only partially, represent the broad range of rubber-tired lift trucks available. For those applications …

Truck loads for the HS system consist of loadings HS 15-44 and HS 20-44. These loads represent a two-axle tractor truck with a one-axle semitrailer and are designated by the letters HS, …

the continuous work led to the first design live loads based on 10- and 15-ton trucks, followed in 1924 by a 20-ton truck. These trucks are known as H10, H15 and H20 trucks respectively, the …

Apr 23, 2012 · The AASHTO specifications present information related to two sizes of H-type vehicles: the standard 20-ton (18-metric ton (MT)) (i.e., H20 (M18) truck, as in figure 82) or a …

H and HS design trucks are used for the basis of loading for AASHTO Standard Specifications for Highway Bridges and AASHTO LRFD Bridge Design Specifications. AASHTO standard …

Oct 3, 2010 · I believe the continuous span condition is the correct one. One truck should be placed over the support and the other could be placed less than 50 feet away. The rationale …

They are called “”notional”” loads as they represent “”Hypothetical”” trucks. Thus the “”H”” for the basic two-axle truck, and “”HS”” for semi-trucks. They based on a statistical analysis of real …