An “H” series truck designates a two-axle truck, while an “HS” series truck is comprised of multiple loaded axles (i.e. a semi-trailer vehicle). See diagrams. The number following the “H” is the …

2024年4月15日 · 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 example, a H15-44 is a 15-ton truck as reported in the 1944 specifications. Trucks that pull trailers are designated as HS, for example HS 20-44 (a 20-ton semi-trailer truck). In general, a …

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 …

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 …

An H loading class designates a two-axle truck with a semitrailer. An HS loading class designates a tractor truck with a semitrailer. The numbers following the letter classification indicate the …

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 …

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, …

2012年4月23日 · 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 …

Purpose: Used to specify the type of truck for standard truck loading in ASD or LFD projects. --> Given in girder system input in Girder System Projects. Given in girder input in Line Girder …