Results 181 to 190 of about 10,814 (222)

Section Idealization of Corrugated Thermoplastic Pipe in AASHTO Design

Transportation Research Record: Journal of the Transportation Research Board, 2018
The AASHTO Load and Resistance Factor Bridge Design Specifications (AASHTO LRFD) thermoplastic pipe design method requires corrugated pipe local buckling resistance to be determined based on corrugation effective area. The effective area may be determined through calculations or physical tests on sections of pipe.
Brent J. Bass, Jesse L. Beaver
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FORTRAN Code for 1986 AASHTO Guide Equations

Journal of Transportation Engineering, 1990
Function subprograms are provided for the solution of the AASHTO equations for both flexible and rigid pavement design using the well known Newton-Raphson root finding numerical solution technique. The code was written for the Microsoft® version 4.1 FORTRAN optimizing compiler for microcomputers.
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AASHTO Rigid Pavement Design Equation Study

Journal of Transportation Engineering, 1991
In 1986, a revised rigid pavement design equation was introduced by the American Association of State Highway and Transportation Officials.
Jeth A. Fogg, Ronald L. Baus, Richard P. Ray   +2 more
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ESNEK ÜSTYAPILARIN TASARIMLARINDA AASHTO-72 VE AASHTO-86C YÖNTEMLERİNİN ANALİTİK VE EKONOMİK KARŞILAŞTIRILMASI

2007
The effects of the constructional design (thickness of layers and types) and loading conditions (axle loading and repetition number) on pavement, and also the change of the pavement performance under repeated loading are considered in AASHTO-72 design method. As for AASHTO-86 design method, the effects of the drainage conditions on pavement, the change
KÖK, Baha Vural, KULOĞLU, Necati
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Optimization of AASHTO DNPS86 Pavement Design Program

Journal of Transportation Engineering, 1991
A nonlinear optimization program is developed to accept the AASHTO DNPS86 pavement design computer program as a subroutine. This enables the obtaining of the least cost design for flexible and rigid pavements without manual interation. Examples illustrate using the 3 design variables for rigid pavements (reliability, subbase thickness, and performance ...
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AASHTO Geotechnical Design Specification Development in the USA

2013
A complete, formal geotechnical design code of practice addressing all aspects of geotechnical engineering really does not exist in the USA at the national level. However, a geotechnical design code has been developed at the national level in response to the needs of the structural engineers as part of the American Association of Highway and ...
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Critique of CANDE/AASHTO Soil Groups

Pipelines 2021, 2021
Amster Howard, Mark Gemperline
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AASHTO-LRFD Live Load Distribution Specifications

Journal of Bridge Engineering, 2000
The live load distribution factors contained in the AASHTO-LRFD Bridge Design Specification present a major change to the AASHTO-LFD specifications that have been in effect for more than 50 years. This change has generated some interest in the bridge engineering community and has raised some questions.
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Evaluation of Design Procedure and Performance of Continuously Reinforced Concrete Pavement According to AASHTO Design Methods

Materials, 2022
Pengfei Liu, Markus Oeser, Ruxin Jing
exaly  

A Resolution of the AASHTO Highway Subcommittee on Bridges and Structures

2009
At its 2009 Annual Meeting, The American Association of State Highway and Transportation Officials’ (AASHTO’s) Subcommittee on Bridges and Structures passed a resolution endorsing national technical institute certification programs. Technical institutes, according to the resolution, “develop consensus standards for their industries; sponsor relevant ...
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