00820972

Component

https://doi.org/10.3141/1770-09

http://scholar.google.com...ULLY&publication_year=2001

Management of the aging bridge infrastructure is demanding an increased understanding of all aspects of the performance of existing bridges. Loading models are an important consideration in the risk assessment of a structure. Quantifying the actual in-service dynamic response of a structure can make a significant difference in terms of keeping a bridge in service. Code-recommended allowances for dynamic effects range between 20% and 40% for major elements. Higher values are sometimes recommended for local effects. It is well understood that parameters including the unevenness of the road profile, the potential of frequency matching between heavy vehicles and the bridge, vehicle speed, and heavy-vehicle load levels all contribute to the dynamic response of a bridge to a single-vehicle event. Multiple vehicles increase the complexity even further. Recent new editions of bridge codes around the world tend to have diversified the methods and allowances for dynamic effects. These methods are compared, and then they are compared with a database of experimental responses measured in a range of structures in Australia and New Zealand during recent years. The results clearly illustrate the importance of each of the above parameters and that very large dynamic responses can be achieved, particularly in short-span structures.

This paper appears in Transportation Research Record No. 1770, Design of Structures 2001.

English

p. 58-66

2001

Transportation Research Record

0309072328

Figures (12) ; References (19) ; Tables (1)

Bridges; Dynamic loads; Load tests; Risk assessment; Specifications

Australia; New Zealand

Bridges and other structures; Design; Highways; Safety and Human Factors; I24: Design of Bridges and Retaining Walls

TRIS, TRB, ATRI

Dec 6 2001 12:00AM

• BRIDGE SAFETY MONITORING USING COUPLED CURRENT DEVICE IMAGES
• COMPARATIVE STUDY OF AASHTO LOAD AND RESISTANCE FACTOR DESIGN DISTRIBUTION FACTORS FOR SLAB-GIRDER BRIDGES
• CONCRETE BRIDGE DECKS REINFORCED WITH FIBER-REINFORCED POLYMER BARS (WITH DISCUSSION AND CLOSURE)
• DEBRIS FLOW SIMULATION FOR HIGHWAY CROSS CULVERTS
• DESIGN OF PROFILE WALL THERMOPLASTIC PIPE FOR LOCAL BUCKLING (WITH DISCUSSION AND CLOSURE)
• DESIGN OF ROUTE 895 BRIDGE OVER JAMES RIVER IN VIRGINIA
• DIAGNOSTIC AND IN-SERVICE TESTING OF TRANSIT RAILWAY BRIDGE
• EFFECT OF BEARING STIFFNESS AND SKEW ANGLE ON PERFORMANCE OF PRECAST CONCRETE BRIDGE
• EFFECTIVE USE OF PUBLIC INVOLVEMENT TO ACHIEVE AESTHETIC QUALITY IN BRIDGE DESIGN
• ESCAPE ADITS FOR TUNNEL SAFETY
• EXPERIMENTAL AND NUMERICAL EVALUATION OF BRACED-CHAIN EYEBAR BRIDGE
• EXPERIMENTAL CHARACTERIZATION OF METALLIC DAMPERS FOR SEISMIC RETROFIT OF HIGHWAY BRIDGES
• FATIGUE ASSESSMENT OF TRAFFIC SIGNAL MAST ARMS BASED ON FIELD TEST DATA UNDER NATURAL WIND GUSTS
• FIELD INVESTIGATION OF HIGH-PERFORMANCE CONCRETE BRIDGE DECKS IN SOUTH CAROLINA
• FIELD STUDIES OF STRENGTHENED TIMBER RAILROAD BRIDGE
• HEALTH MONITORING OF IRONTON-RUSSELL BRIDGE FOR RATING PURPOSES
• LONG-TERM DURABILITY OF STRUCTURAL COMPOSITE LUMBER IN BRIDGE APPLICATIONS
• PERFORMANCE IN LIEU OF PRESCRIPTION IN BRIDGE DESIGN: CHANGI AIRPORT MEZZANINE BRIDGE, SINGAPORE
• PERFORMANCE OF FIVE-SPAN STEEL BRIDGE WITH FIBER-REINFORCED POLYMER COMPOSITE DECK PANELS
• PERFORMANCE OF GLASS FIBER-REINFORCED POLYMER DECK ON STEEL GIRDER BRIDGE
• PUBLIC PARTICIPATION AND BRIDGE TYPE SELECTION
• REPAIR AND STRENGTHENING OF CONCRETE STRUCTURES THROUGH APPLICATION OF CORRECTIVE POSTTENSIONING FORCES WITH SHAPE MEMORY ALLOYS
• RETROFITTING TO CORRECT UPLIFT OF CURVED GIRDER BRIDGE THROUGH FIELD TESTING AND ANALYSIS
• SOIL PRESSURE MEASURED AT VARIOUS FILL HEIGHTS ABOVE DEEPLY BURIED THERMOPLASTIC PIPE
• SUPERSTRUCTURE FLEXIBILITY AND DISINTEGRATION OF REINFORCED CONCRETE DECK SLABS: AN LRFD PERSPECTIVE
• TIME-DEPENDENT DEFLECTION OF THERMOPLASTIC PIPES UNDER DEEP BURIAL
• ULTRASONIC INSPECTION OF GLUED LAMINATED TIMBER FABRICATED WITH DEFECTS
• UPDATE ON ANALYTICAL AND EXPERIMENTAL RESEARCH ON BRIDGE RESTRAINERS
• VIRTUAL REALITY IMAGES TO AID PUBLIC INVOLVEMENT IN APPEARANCE OF ROADS AND BRIDGES