00941390

Component

http://onlinepubs.trb.org...nepubs/circulars/ec049.pdf

A repaired bridge has to fulfill strength and durability criteria to achieve a specified safe and useful design life with expected levels of maintenance. During structural patch repair, the structural behavior of a concrete member can change during the excavation of old concrete and in subsequent replacement with new material, and this behavioral change needs to be considered before carrying out the repair. Currently, little guidance is available on the redistribution of stresses within a reinforced concrete structure during and after such repair. Also, there are different views among engineers on whether a structure should be propped or left unpropped during patch repair. However, structural properties and loading conditions are not the only factors important for achieving a successful repair operation. It is not only the stresses present during and after repair that affect the short- and long-term behavior of a repaired structure but also other aspects, such as environmental conditions and compatibility of repair material with original concrete. As the effects of these many facets of patch repair on the behavior of a structure are different, it is difficult to make decisions by comparing them directly. Thus, a risk-based methodology is suggested to help in decision making related to the implementation of patch repair. Discussed are the importance of a risk-based approach to structural patch repair implementation and the parameters to be considered in developing such a methodology.

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E-C049,
IBMC03-036
IBMC03-041

English

p. 266-274

2003-4

Transportation Research Circular

9th International Bridge Management Conference

Figures (2) ; References (4)

Decision making; Patching; Patching mortar; Reinforced concrete bridges; Repairing; Risk analysis; Stresses

Environmental conditions

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

TRIS, TRB

Apr 18 2003 12:00AM

• ADDRESSING UNCERTAINTIES IN BRIDGE MANAGEMENT WITH INFLUENCE DIAGRAMS
• ASSESSING THE SAFETY AND SERVICEABILITY OF EXISTING HIGHWAY STRUCTURES
• ASSET NEEDS FROM THE BOTTOM UP
• BRIDGE EXPERT ANALYSIS AND DECISION SUPPORT SYSTEM
• BRIDGE MANAGEMENT SYSTEM FOR CITY OF MOSCOW
• BRIDGE MANAGEMENT THROUGH THE INTERNET WITH DANBROWEB
• BRIDGE TESTING TO ENHANCE BRIDGE MANAGEMENT IN DELAWARE
• CONDITION-BASED BRIDGE ASSET VALUATION
• CUSTOMIZATION OF THE PONTIS BRIDGE MANAGEMENT SYSTEM FOR A TRANSIT AGENCY
• DETERMINATION OF BRIDGE DETERIORATION MATRICES WITH STATE NATIONAL BRIDGE INVENTORY DATA
• ECONOMETRIC MODEL FOR PREDICTING DETERIORATION OF BRIDGE DECK EXPANSION JOINTS
• FLORIDA PROJECT-LEVEL MODELS FOR PONTIS
• FORECASTING LIFETIME SAFETY AND SERVICEABILITY FOR MANAGEMENT OF A NETWORK OF HIGHWAY BRIDGES IN COLORADO
• IMPLEMENTATION OF ONTARIO BRIDGE MANAGEMENT SYSTEM
• INTEGRATION OF AASHTO'S BRIDGEWARE PRODUCTS
• LIFE-CYCLE COST APPROACH TO BRIDGE MANAGEMENT IN THE NETHERLANDS
• LIFE-CYCLE MANAGEMENT OF CONCRETE INFRASTRUCTURES FOR IMPROVED SUSTAINABILITY
• MAINTENANCE STRATEGY TO MINIMIZE BRIDGE LIFE-CYCLE COSTS
• METHODOLOGY FOR PREDICTION OF CONDITION OF CONCRETE BRIDGE DECKS AT NETWORK LEVEL
• MONITORING AND PLANS FOR ACTION FOR BRIDGE SCOUR: INSTRUMENTS AND STATE DEPARTMENTS OF TRANSPORTATION EXPERIENCES
• NEW BRIDGE PERFORMANCE MEASURES FOR PRIORITIZING BRIDGES
• PERFORMANCE-BASED PROGRAMMING OF BRIDGES IN NEW JERSEY
• PHYSICAL MODELING OF SCOUR IN BRIDGE MANAGEMENT
• PONTIS BRIDGE MANAGEMENT SYSTEM: STATE OF THE PRACTICE IN IMPLEMENTATION AND DEVELOPMENT
• PONTIS-BASED HEALTH INDEXES FOR BRIDGE PRIORITY EVALUATION
• PREDICTION OF DETERIORATION: START APPLICATION OF DEICING AGENT TAKEN INTO ACCOUNT
• STATEWIDE IMPLEMENTATION OF A BRIDGE MANAGEMENT SYSTEM AS PART OF INTEGRATED ASSET MANAGEMENT IN KENTUCKY
• SUPPLY AND DEMAND SYSTEM APPROACH TO DEVELOPING BRIDGE MANAGEMENT STRATEGIES: COMPARISON WITH TWO EXISTING APPROACHES
• SYNCHRONIZING AN AGENCY'S BRIDGE INFORMATION BETWEEN MULTIPLE VENDOR SYSTEMS: KANSAS DEPARTMENT OF TRANSPORTATION APPROACH
• SYNTHESIS OF ELEMENT CONDITION DATA FOR AGGREGATE ANALYSES IN BRIDGE MANAGEMENT SYSTEMS
• SYSTEM RELIABILITY MODELING IN BRIDGE MANAGEMENT
• TISBO INFRASTRUCTURE MAINTENANCE MANAGEMENT SYSTEM: INTEGRATING INSPECTION REGISTRATION AND MAINTENANCE MANAGEMENT
• UPDATING TIME-DEPENDENT RELIABILITY OF HIGHWAY BRIDGES WITH PONTIS BRIDGE MANAGEMENT SYSTEM INSPECTION RESULTS
• WEB-BASED BRIDGE MANAGEMENT SYSTEM