What is HS20 rating?

What does HS-20 traffic rating mean? This is the term used by AASHTO and ACI to describe normal MOVING traffic loading conditions up to 18-wheeler loading. This loading assumes a 16,000 lbs wheel load and therefore a 32,000 lbs axle load.

What is H25 load capacity?

For loads of up to 25 tons / 50,000 lbs. AASHTO H25 or HS-25 Loading is specified for areas that will be subjected to frequent heavy vehicle traffic (such as trucks). The H25 design load is per AASHTO’s M-306-10 load test requirements – proof load testing to 50,000 lbs.

What is h15 loading?

An H-15 loading is represented by a two-axle single unit truck weighing 30,000 pounds (15 tons) with 6,000 pounds on its steering axle and 24,000 pounds on its drive axle.

What is H 40 loading?

AASHTO H40 or HS-40 Loading is specified for areas that will be subjected to extremely heavy truck traffic (such as truck stops, fire stations and mining facilities).

What is h-20/hs-20 loading?

What is H-20/HS-20 Loading? AASHTO’s H-20 and HS-20 are live load ratings applied to the design of bridges or other suspended items (e.g. lids for concrete vaults). Designers use H-20 or HS-20 from AASHTO, or specific axle configurations, to express the extreme load effect created by heavy vehicles such as transports, buses and fire trucks.

What is hs20-44 truck load?

The 1944 edition included the HS20 truck load and started a policy of affixing the year to loadings making HS20-44 the official designation. The additional ‘S’ made an allowance for heavier tractor-trailers that were available at the time. Figure 2 describes the load and load spacing for HS20-44.

What does HS-20 mean on a trench structure?

This image shows the potential heavy duty traffic loading imposed on underground trench structures. What does HS-20 traffic rating mean? This is the term used by AASHTO and ACI to describe normal MOVING traffic loading conditions up to 18-wheeler loading. This loading assumes a 16,000 lbs wheel load and therefore a 32,000 lbs axle load.

What is the difference between HS20 and hl93 wheel load?

The HL93 “design truck” wheel load is the same as the HS20 wheel load. The HL93 “design tandem” wheel load is 12,500 pounds compared with the “Alternate Military Load” of 12,000 pounds. The extra 500-pound wheel load is not a large increase and will only affect those designs that did not have excess capacity.