Development of a new end treatment for W-beam guardrail /

Bibliographic Details
Main Author:	Qureshy, Asif Bashir
Other Authors:	Beason, W. L. (degree committee member.), Morgan, J. R. (degree committee member.), Haisler, W. E. (degree committee member.), Hirsch, T. J. (degree committee member.)
Format:	Thesis Book
Language:	English
Published:	1992.
Subjects:	Roads > Guard fences > Design. Roads > Guard fences > Safety measures. Major civil engineering. Academic theses
Online Access:	Link to OAKTrust copy

Description
Abstract:	In the research described here, a new end treatment, called the guardrail extruder terminal, was developed for W-beam guardrails. The end treatment primarily consists of a device, called the extruder that, when impacted by a vehicle, causes the W-beam to be flattened and projected in front of the vehicle and behind the guardrail installation. Vehicular energy is dissipated in the process, resulting in a smooth, controlled deceleration of the vehicle. The guardrail extruder terminal has was crash tested and shown to be in compliance with nationally recognized impact performance standards. An analytical model was developed to analyze and validate the behavior of this end treatment. The guardrail extruder terminal offers a great improvement in comparison to existing guardrail end treatments. It is advantageous in terms of cost, impact performance and design.
Item Description:	Typescript (photocopy). Vita. "Major subject: Civil Engineering."
Physical Description:	xi, 183 leaves : illustrations ; 29 cm
Bibliography:	Includes bibliographical references.