Author: Justin M. Ocel
Publisher:
ISBN:
Category : Lampposts
Languages : en
Pages : 190
Book Description
Traffic signs and signals are often supported by flexible cantilevered structures that are susceptible to wind-induced vibration and fatigue. The latest version of the design specifications published by the American Association of State Transportation Officials (AASHTO) now considers fatigue as a limit state. However, most of the fatigue classifications for welded details were not based on full-scale testing, and are thought to be overly conservative. This research will address the fatigue resistance of two common mast arm-to-pole connections used in the state of Minnesota. The resistance attained experimentally aligned with current predictions using AASHTO procedures, except for in-plane loading of box connection details. As a consequence of specimen design, a variety of tube-totransverse plate connections were also tested using multi-sided tube cross-sections with different tube diameters, tube thicknesses, as well as base plate thicknesses. The standard tube-to-transverse plate connection exhibited Category K2 resistance, two categories lower than the E' specified by AASHTO. This resistance was enhanced to Category E' through impact treatment or Category E by doubling the base plate thickness. Gusset plates could not prevent cracking of the tube at the base plate, but the tips of the gusset plate exhibited Category E resistance.
Fatigue-resistant Design for Overhead Signs, Mast-arm Signal Poles, and Lighting Standards
Author: Justin M. Ocel
Publisher:
ISBN:
Category : Lampposts
Languages : en
Pages : 190
Book Description
Traffic signs and signals are often supported by flexible cantilevered structures that are susceptible to wind-induced vibration and fatigue. The latest version of the design specifications published by the American Association of State Transportation Officials (AASHTO) now considers fatigue as a limit state. However, most of the fatigue classifications for welded details were not based on full-scale testing, and are thought to be overly conservative. This research will address the fatigue resistance of two common mast arm-to-pole connections used in the state of Minnesota. The resistance attained experimentally aligned with current predictions using AASHTO procedures, except for in-plane loading of box connection details. As a consequence of specimen design, a variety of tube-totransverse plate connections were also tested using multi-sided tube cross-sections with different tube diameters, tube thicknesses, as well as base plate thicknesses. The standard tube-to-transverse plate connection exhibited Category K2 resistance, two categories lower than the E' specified by AASHTO. This resistance was enhanced to Category E' through impact treatment or Category E by doubling the base plate thickness. Gusset plates could not prevent cracking of the tube at the base plate, but the tips of the gusset plate exhibited Category E resistance.
Publisher:
ISBN:
Category : Lampposts
Languages : en
Pages : 190
Book Description
Traffic signs and signals are often supported by flexible cantilevered structures that are susceptible to wind-induced vibration and fatigue. The latest version of the design specifications published by the American Association of State Transportation Officials (AASHTO) now considers fatigue as a limit state. However, most of the fatigue classifications for welded details were not based on full-scale testing, and are thought to be overly conservative. This research will address the fatigue resistance of two common mast arm-to-pole connections used in the state of Minnesota. The resistance attained experimentally aligned with current predictions using AASHTO procedures, except for in-plane loading of box connection details. As a consequence of specimen design, a variety of tube-totransverse plate connections were also tested using multi-sided tube cross-sections with different tube diameters, tube thicknesses, as well as base plate thicknesses. The standard tube-to-transverse plate connection exhibited Category K2 resistance, two categories lower than the E' specified by AASHTO. This resistance was enhanced to Category E' through impact treatment or Category E by doubling the base plate thickness. Gusset plates could not prevent cracking of the tube at the base plate, but the tips of the gusset plate exhibited Category E resistance.
Fatigue Risks in the Connections of Sign Support Structures
Author:
Publisher:
ISBN:
Category : Traffic signs and signals
Languages : en
Pages : 212
Book Description
Publisher:
ISBN:
Category : Traffic signs and signals
Languages : en
Pages : 212
Book Description
Fatigue-resistant Design of Cantilevered Signal, Sign, and Light Supports
Author: Robert Joseph Dexter
Publisher: Transportation Research Board
ISBN: 0309067243
Category : Lampposts
Languages : en
Pages : 111
Book Description
Publisher: Transportation Research Board
ISBN: 0309067243
Category : Lampposts
Languages : en
Pages : 111
Book Description
Fatigue-resistant Design of Cantilevered Signal, Sign and Light Supports
Author: Mark R. Kaczinski
Publisher: Transportation Research Board
ISBN: 9780309062749
Category : Technology & Engineering
Languages : en
Pages : 268
Book Description
Publisher: Transportation Research Board
ISBN: 9780309062749
Category : Technology & Engineering
Languages : en
Pages : 268
Book Description
Fatigue-resistant Design of Cantilevered Signal, Sign, and Light Supports
Author: Robert Joseph Dexter
Publisher:
ISBN:
Category : Lampposts
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Lampposts
Languages : en
Pages :
Book Description
Structural Supports for Highway Signs, Luminaires, and Traffic Signals
Author: Fouad Hilmy Fouad
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 124
Book Description
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 124
Book Description
Roadside Design Guide
Author: American Association of State Highway and Transportation Officials. Task Force for Roadside Safety
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 560
Book Description
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 560
Book Description
Guidelines for Design and Operation of Nighttime Traffic Control for Highway Maintenance and Construction
Author: James E. Bryden
Publisher: Transportation Research Board
ISBN: 0309067650
Category : Automobile driving at night
Languages : en
Pages : 131
Book Description
Publisher: Transportation Research Board
ISBN: 0309067650
Category : Automobile driving at night
Languages : en
Pages : 131
Book Description
Signs and Symbols
Author: Adrian Frutiger
Publisher:
ISBN:
Category : Literary Criticism
Languages : en
Pages : 372
Book Description
Discusses the elements of a sign, and looks at pictograms, alphabets, calligraphy, monograms, text type, numerical signs, symbols, and trademarks.
Publisher:
ISBN:
Category : Literary Criticism
Languages : en
Pages : 372
Book Description
Discusses the elements of a sign, and looks at pictograms, alphabets, calligraphy, monograms, text type, numerical signs, symbols, and trademarks.
Cal/OSHA Pocket Guide for the Construction Industry
Author:
Publisher:
ISBN: 9781622701070
Category :
Languages : en
Pages :
Book Description
The Cal/OSHA Pocket Guide for the Construction Industry is a handy guide for workers, employers, supervisors, and safety personnel. This latest 2011 edition is a quick field reference that summarizes selected safety standards from the California Code of Regulations. The major subject headings are alphabetized and cross-referenced within the text, and it has a detailed index. Spiral bound, 8.5 x 5.5"
Publisher:
ISBN: 9781622701070
Category :
Languages : en
Pages :
Book Description
The Cal/OSHA Pocket Guide for the Construction Industry is a handy guide for workers, employers, supervisors, and safety personnel. This latest 2011 edition is a quick field reference that summarizes selected safety standards from the California Code of Regulations. The major subject headings are alphabetized and cross-referenced within the text, and it has a detailed index. Spiral bound, 8.5 x 5.5"