详情

Bridge Element Deterioration for Midwest States

项目名称：	Bridge Element Deterioration for Midwest States
摘要：	The objective of this pooled fund research is to have multiple Mid-west departments of transportation (DOTs) pool resources and historic Mid-west DOT bridge data related to element level deterioration, operation practices, maintenance activities, and historic design/construction details. This data will provide the basis for research to determine deterioration curves. A select number of deterioration curves will provide needed utility for the time-dependent deterioration of bridge elements to be used in making estimates of future conditions and work actions. This effort will pool data and through the analysis and research processes create results that will improve accuracy of various bridge management and asset management applications that the member DOTs use (BrM, Agile Assets, and other). This study will be sequenced into three tiers based on the priorities of the DOTs. TIER 1 National Bridge Elements (NBE) & National Bridge Inventory: (1) Develop element level deterioration curves for Reinforced Concrete Deck from data that will provide the basis for research to determine the deterioration curves; (2) Develop element level deterioration curves for Reinforced Concrete Slab from data that will provide the basis for research to determine the deterioration curves; (3) Develop deterioration curves for NBI items from data that will provide the basis for research to determine the deterioration curves; (4) Develop element level deterioration curves for Reinforced Concrete Deck after a major preservation activity such as mill and overlay with rigid concrete wearing course; (5) Develop predicted improvement in condition of Reinforced Concrete Deck element after a major preservation activity such as mill and overlay; and (6) In addition to probabilistic deterioration curves, also develop deterministic deterioration curves that better may fit with field observations. TIER 2 Bridge Management Elements (BME): (7) Develop element level deterioration curves for each type of wearing surface (bare concrete, sealed concrete, thin polymer overlay, PPC overlay, ridged concrete overlay, Polymer Modified Asphalt overlay, and asphalt overlay with membrane) from data that will provide the basis for research to determine the deterioration curves; (8) Develop element level deterioration curves for Strip Seal Deck Joints and Modular Deck Joints from data that will provide the basis for research to determine the deterioration curves; (9)Determine defect level deterioration curves that describe defect development and progression (e.g., cracking and delamination); (10) Develop defect level deterioration curves for Paint system (protective steel) effectiveness; (11) Develop defect level deterioration curves for Steel Girder corrosion, and correlate to Paint system effectiveness; specifically, how long from new paint to 75% and 50% effective and end of life; and (12) Develop element level deterioration curves for substructure elements in harsh environments (i.e., pier caps under expansion joints, pier columns in spray zone from snow plows, etc.). TIER 3 (similar Agency Defined Elements (ADE) & Inspection related): (13) From research results, determine what type of inspection information (nondestructive testing) Mid-west DOTs have that translates into information on element level defects (GPR, Thermograph, other); and (14) Use DOT past data and research and analysis results to determine the reliability of Infrared Thermography and Ground Penetrating Radar (GPR) for defect reporting (to describe delamination and deterioration) of concrete bridge decks.
状态：	Programmed
资金：	500000
资助组织：	Illinois Department of Transportation<==>Indiana Department of Transportation<==>Iowa Department of Transportation<==>Kansas Department of Transportation<==>Michigan Department of Transportation<==>Minnesota Department of Transportation<==>Nebraska Department of Transportation<==>North Dakota Department of Transportation<==>Ohio Department of Transportation<==>South Dakota Department of Transportation<==>Wisconsin Department of Transportation<==>Kentucky Transportation Cabinet
项目负责人：	Severson, Ethan
开始时间：	20211012
主题领域：	Bridges and other structures；Construction；Design；Highways；Maintenance and Preservation