01333122

Component

https://doi.org/10.3141/2262-12

http://scholar.google.com...king&publication_year=2011

Nail-laminated timber deck bridges represent an economical and convenient solution for rural low-volume roads, but a need exists to develop effective railing systems for this type of roadway structure. This paper describes the development of two bridge railings that are specifically designed for transverse nail-laminated timber deck bridges and that meet the requirements for Test Level 1 (TL-1) of the "Manual for Assessing Safety Hardware" (MASH) and TL-2 of NCHRP Report 350. The design for each of the railing systems was based on retrofit modifications applied to existing bridge railings that were previously successfully tested: one for a longitudinal glue-laminated timber deck and the other for a transverse glue-laminated timber deck. For both railing systems, component testing was performed to investigate the behavior of the proposed design and the potential advantage of various solutions. A full-scale crash test assessed the safety performance of the TL-1 curb-type railing under the new MASH criteria, while dynamic component tests were deemed sufficient for the assessment of the steel railing under TL-2 conditions for NCHRP Report 350.

01363271

11-2936

English

pp 119-130

2011

Transportation Research Record: Journal of the Transportation Research Board

9780309223003

Print

Figures; Photos; References (9)

Bridge decks; Bridge design; Bridge railings; Crash tests; Laminated wood; Low volume roads; Wooden bridges

AASHTO Manual for Assessing Safety Hardware; NCHRP Report 350

Bridges and other structures; Design; Highways; Safety and Human Factors; I24: Design of Bridges and Retaining Walls; I85: Safety Devices used in Transport Infrastructure

PRP, TRIS, TRB

Feb 17 2011 6:20PM

• Analysis of Operational Interactions Between Freeway Managed Lanes and Parallel, General Purpose Lanes
• Assessing Performance of Bioretention Boxes in Hot and Semiarid Regions: Highway Application Pilot Study
• Bridge Rail and Approach Railing for Low-Volume Roads in Iowa
• Context-Sensitive Solutions Versus Practical Solutions: What Are the Differences?
• Development of a Low-Cost, Energy-Absorbing Bridge Rail
• Effect of Barrier Type on Injury Severity in Motorcycle-to-Barrier Collisions in North Carolina, Texas, and New Jersey
• Estimating Joint Flow Probabilities at Stream Confluences Using Copulas
• Evaluation of Passing Process on Two-Lane Rural Highways in Spain with New Methodology Based on Video Data
• Guidelines for Spacing Between Freeway Ramps
• Hydrographs and Estimates of Scour Depth Excess for Pier Scour Prediction: Use for Ungauged Streams with Scour Rate in Cohesive Soils Method
• Hydrologic Uncertainty in Prediction of Bridge Scour
• Methodology for Checking Shortcomings in Three-Dimensional Alignment
• New Insights on Evaluations of Design Consistency for Two-Lane Highways
• New Three-Dimensional Highway Design Methodology for Sight Distance Measurement
• Nonblocked Midwest Guardrail System for Wire-Faced Walls of Mechanically Stabilized Earth
• Old Road, New Directions: Plan for Adeline Street in Berkeley, California
• Provision of Sight Distance Around Concrete Barriers and Structures on Freeways and Interchanges
• Public Perception and Sustainable Management Strategies for Roadside Vegetation
• Reduced-Conflict Intersection
• Removal, by Vegetated Biofilter, of Medium and Low Concentrations of Pollutants from Simulated Highway Runoff
• Short-Radius Guardrail System for NCHRP Report 350 Test Level 2 Conditions
• Strategies to Address Utility Challenges in Project Development