00757566

Component

https://doi.org/10.3141/1647-17

http://scholar.google.com...+Ray&publication_year=1998

The performance of many guardrail terminal systems is dependent on the strength of timber guardrail posts and soil conditions. Accurately simulating the breakaway characteristics of guardrail posts mounted in soils is an important issue concerning researchers in the roadside safety community. Finite-element analysis is one method that can be used to evaluate roadside hardware designs, but good simulations are contingent on developing accurate models of the components. A description is provided of the development of a model of a breakaway timber post and soil system used in the breakaway cable terminal (BCT) and the modified eccentric loader terminal (MELT). The model is described and simulation results are compared with data from physical tests of BCT/MELT posts.

This paper appears in Transportation Research Record No. 1647, General Design and Roadside Safety Features.

English

p. 139-146

1998

Transportation Research Record

0309065194

Figures (7) ; References (17) ; Tables (2)

Alternatives analysis; Breakaway supports; Eccentricity; Finite element method; Guardrail terminals; Guardrails; Intermodal terminals; Loaders; Simulation; Soil structure interaction; Soils

Breakaway cable terminals; Experimental data; Modified Eccentric Loader Terminal; Soil conditions

Design; Geotechnology; Highways; Safety and Human Factors; Terminals and Facilities; I85: Safety Devices used in Transport Infrastructure

TRIS, TRB, ATRI

Dec 16 1998 12:00AM

• ANALYSIS OF GAUGING STATION FLOOD FREQUENCY ESTIMATES IN NEBRASKA USING L-MOMENTS AND REGION OF INFLUENCE METHODS
• APPROACH GUARDRAIL TRANSITION FOR CONCRETE SAFETY SHAPE BARRIERS
• DEVELOPMENT AND TESTING OF A PARTIAL EXFILTRATION TRENCH FOR IN SITU TREATMENT OF HIGHWAY DRAINAGE
• DEVELOPMENT OF A 100-KM/H REUSABLE HIGH-MOLECULAR WEIGHT/HIGH-DENSITY POLYETHYLENE TRUCK-MOUNTED ATTENUATOR
• DEVELOPMENT OF A SEQUENTIAL KINKING TERMINAL FOR W-BEAM GUARDRAILS
• DEVELOPMENT OF A THREE-DIMENSIONAL SIMULATION MODEL OF VEHICLE-BRIDGE RAILING CRASH: A COMPUTER-AIDED APPROACH TO BRIDGE RAILING STIFFNESS DESIGN
• FINITE-ELEMENT MODELING AND MODEL VERIFICATION OF STEEL W-BEAM GUARDRAILS SUBJECT TO PENDULUM IMPACT LOADING
• FIXED INSTRUMENTATION FOR MONITORING SCOUR AT BRIDGES
• MODEL OF THE PERFORMANCE OF A ROADWAY SAFETY FENCE AND ITS USE FOR DESIGN
• NCHRP REPORT 350 COMPLIANCE TESTING OF THE BEAM-EATING STEEL TERMINAL SYSTEM
• ONE-DIMENSIONAL AND TWO-DIMENSIONAL ESTIMATES OF ABUTMENT SCOUR PREDICTION VARIABLES
• REGIONALIZATION OF PRECIPITATION CHARACTERISTICS IN MONTANA USING L-MOMENTS
• RIPRAP PERFORMANCE AT BRIDGE PIERS UNDER MOBILE-BED CONDITIONS
• ROADSIDE SAFETY ANALYSIS PROGRAM: A COST-EFFECTIVENESS ANALYSIS PROCEDURE
• SIDE-IMPACT CRASH TEST AND EVALUATION CRITERIA FOR ROADSIDE SAFETY HARDWARE
• USE OF WEATHER SURVEILLANCE RADARS-88 DOPPLER DATA IN HYDROLOGIC MODELING
• VERTICAL CONTRACTION SCOUR AT BRIDGES WITH WATER FLOWING UNDER PRESSURE CONDITIONS