scholarly journals Performance of New-Type Curved Steel Bridge Railings Subjected to Heavy Truck Collisions

2013 ◽  
Vol 62 (10) ◽  
pp. 607-614 ◽  
Author(s):  
Le THANH ◽  
Yoshito ITOH ◽  
Seiji ITOH ◽  
Osamu TAKADOH
Author(s):  
Bernard Héritier ◽  
François Olard ◽  
Frédéric Loup ◽  
Serge Krafft

This paper presents a rational approach for the performance-based design of bituminous wearing surfacings on orthogonally anisotropic steel bridges. The behavior of bituminous surfacings on steel orthotropic decks under heavy truck traffic and environmental conditions is highly complex. Both the geometry of the structure and the high flexibility of metallic plates make the deformations and stresses severe in steel bridge surfacings. In particular, the repeated loading makes the fatigue strength an important parameter for the design of such bituminous wearing courses. In addition, these specific surfacings must have durability over the expected temperature range, and they must be resistant to thermal cracking at low temperatures and to rutting at high temperatures. The technical studies that were conducted in parallel with the construction of the Millau Viaduct (France)–-the world's highest bridge–-have provided in particular the opportunity for progress in the development of appropriate laboratory testing equipment and of an original polymer-modified surfacing. A comprehensive research program, including both a large laboratory testing campaign and a finite element parametric study, was performed to develop a useful tool for the design of plate surfacings.


2000 ◽  
Vol 1696 (1) ◽  
pp. 152-161
Author(s):  
Sheila Rimal Duwadi ◽  
Michael A. Grubb ◽  
Chai H. Yoo ◽  
Joseph Hartmann

Since 1992, FHWA has had a major concentrated research project in the area of horizontally curved steel bridges, the objective of which is to conduct research to better define the fundamental behavior of such bridges. The project involves theoretical work leading to the development of refined predictor equations and verification of those equations through linear and nonlinear analysis and experimental testing of I-girder components. The overall experimental program involves testing of a series of full-scale bending and shear curved steel I-girder components and subsequently a full-size bridge. The development and refinement of predictor equations are summarized, and the work leading to the first series of experimental tests, which involve testing of full-scale bending components, is described.


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