Effects of Heavier Truck Loadings and Super-Single Tires on Subgrades [Technical Summary]

Salgado, Rodrigo

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Effects of Heavier Truck Loadings and Super-Single Tires on Subgrades [Technical Summary]

2002-11-01
By Salgado, Rodrigo

File Language:

English

Details

Creators:

Salgado, Rodrigo
Corporate Creators:

Purdue University. Joint Transportation Research Program
Corporate Contributors:

Indiana Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Analysis Concrete Overlays Contact Stress Finite Element Method Flexible Pavements Heavy Duty Trucks Pavement Subgrade Plasticity Pore Water Pressures Soil Plasticity Soils By Properties Subgrade Improvement Super-single Tires Tires
Publication/ Report Number:

FHWA/IN/JTRP-2002/20
Resource Type:

Brief
Geographical Coverage:

United States ; Indiana
Edition:

Technical Summary
Corporate Publisher:

Indiana Department of Transportation
Abstract:

In the last two decades, use of super-single tires has slightly increased, with the aim of improving efficiency and economy. Since the contact stresses generated by super-single tires are higher than those of conventional dual tires, this change has caused concern about possible damage to pavements designed based on the current design methods. The higher the contact stresses on the pavement surface, the larger the subgrade deformation, and the more severe the damage to the subgrade In order to investigate the effects of super-single tire loadings on subgrades for typical Indiana road cross-sections, static and dynamic finite element analyses were performed taking into account the realistic shape of the contact area and the increased vertical contact stress. Subgrade soils were modeled as saturated to consider the most severe conditions possibly occurring during the pavement design life.
Format:

PDF
Funding:

SPR-2402
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:c87e0a0f4f8460f519f629f9519c8c28e674d4723849054fd1785640dbdddfdf0d860aef0a982fac1c06b9c1e726eda80ff43ea373cda63e65cd4852f0f45e6d
Download URL:

https://rosap.ntl.bts.gov/view/dot/91148/dot_91148_DS1.pdf
File Type:

[PDF - 159.98 KB ]

File Language:

English

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