Author: Alok MadanPublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 332
Book Description
Behavior of Composite Steel Bridge Girders Subjected to Heat-straightening Repairs
Heat-straightening Repair of Damaged Steel Bridge Girders
Author: Robert J. ConnorPublisher: Transportation Research Board
ISBN: 0309099374
Category : Transportation
Languages : en
Pages : 140
Book Description
TRB¿s National Cooperative Highway Research Program (NCHRP) Report 604: Heat-Straightening Repair of Damaged Steel Bridge Girders: Fatigue and Fracture Performance explores limits, based on fatigue and fracture performance, on the number of damage and repair cycles to which damaged steel bridge girders may be subjected using the heat-straightening procedure.
Heat-straightening Repairs of Damaged Steel Bridges
Author: R. Richard AventPublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 272
Book Description
Synthesis Study: Heat Treatment and Its Effects on Rehabilitating Steel Bridges in Indiana
Author: Matthew LackowskiPublisher: Purdue University Press
ISBN: 9781622601134
Category : Transportation
Languages : en
Pages : 78
Book Description
Significant research has been conducted on the development of: (1) heat straightening repair techniques and their field implementation, (2) guidelines and recommendations for heat straightening repair, (3) empirical procedures for estimating plastic rotations achieved during heat straightening, (4) empirical procedures for predicting residual stresses caused by heat straightening, and (5) the effects of heat straightening on the structural properties of repaired bridges. Currently, there is a need for additional research on: (a) the fatigue performance of heat straightened beams, (b) the effects of single and multiple heat straightening on the fracture toughness and microstructure of steel beams, (c) the development of guidelines for evaluating and replacing steel beams subjected to single or multiple damage-repairs, and (d) investigating the effects of realistic heat straightening with imperfections on the properties and serviceability of steel beam bridges. The literature review of existing heat treatments indicates that heat straightening with maximum temperature limited to 1200 F is relatively similar to the process annealing heat treatment. Heat straightening with maximum temperature limited to 1400oF is similar to the normalizing annealing heat treatment. Both these heat treatments repair plastically deformed microstructure by the phenomenon known as recovery and recrystallization. Normalizing annealing is more efficient and faster than process annealing in repairing the plastically deformed microstructure by recrystallization. Heat treatment and repair of the material microstructure is incidental to the heat straightening repair process. The heat straightened beam can be further heat treated to complete the repair of the material microstructure (recrystallization etc.). The practical and economic feasibility of additional heat treatment using electrically powered and controlled radiant heaters was evaluated and found to be reasonable.
Moment-rotation Behavior of Composite and Non-composite Steel Bridge Girders in Negative Bending
Author: Kara Christine UnterreinerPublisher:
ISBN:
Category : Composite construction
Languages : en
Pages : 318
Book Description
Effect of Girder Damage on the Structural Behavior of Slab-on-girder Bridges
Author: Ahmad E. AloznPublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 116
Book Description
"The objective of this study is to investigate the effect of minor damage in the exterior girder on the behavior of composite steel girder bridges subjected to live load. This is done through numerical studies involving finite element modeling of various bridges with different geometry."--Abstract, p. iii.
Masters Theses in the Pure and Applied Sciences
Author: W. H. ShaferPublisher: Springer Science & Business Media
ISBN: 9780306447112
Category : Education
Languages : en
Pages : 410
Book Description
Volume 37 (thesis year 1992) reports a total of 12,549 thesis titles from 25 Canadian and 153 US universities (theses submitted in previous years but only now reported are indicated by the thesis year shown in parenthesis). The organization, like that of past years, consists of thesis titles arrange
Heat-straightening Effects on the Behavior of Full-scale Simulated Bridge Girders
Author: R. Richard AventPublisher:
ISBN:
Category : Girders
Languages : en
Pages : 128
Book Description
An Analytical Study of the Behavior of Composite Girder Bridges Subjected to Loads Applied Parallel to the Plane of the Slab
Author: Jagannath Kishanchand KhannaPublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 392
Book Description
Overload Behavior of Composite Steel-concrete Highway Girder Bridges
Author: Anton W. WegmullerPublisher:
ISBN:
Category : Girders
Languages : en
Pages : 146
Book Description