Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The inspection of installations of rebar and other embedded components in bridge deck construction is a tedioustask for field inspectors, requiring considerable field time for measurement and verification against code require-ment. The verification of rebar and dowel locations after placement of concrete is another difficult but importanttask. Ground Penetrating Radar (GPR) is often used to verify the locations of dowels and rebar after the con-struction of bridge deck is completed. Although GPR is an effective method for this purpose, the discovery ofquality problems, if there is any, associated with rebar installations is often too late to secure timely and costefficient repair. There is a need for proactive quality control and assurance methods that can assist field inspec-tors to quickly inspect and monitor code compliance of installations of rebar and other embedded componentsbefore and during the placement of concrete. In this project, the utility of 3D laser scanning for quality controlof bridge deck construction is investigated. We demonstrated the common workow for field scan collection anddata analysis for verifying bridge deck construction quality. We focused on a set of parameters that need to bemonitored during bridge deck construction. The research results suggested that with careful planning and welldesigned workow, 3D laser scanning is an effective method for controlling the quality of bridge deck construction,and state DOTs should consider incorporating 3D scanning as a proactive quality control methods.
The inspection of installations of rebar and other embedded components in bridge deck construction is a tedioustask for field inspectors, requiring considerable field time for measurement and verification against code require-ment. The verification of rebar and dowel locations after placement of concrete is another difficult but importanttask. Ground Penetrating Radar (GPR) is often used to verify the locations of dowels and rebar after the con-struction of bridge deck is completed. Although GPR is an effective method for this purpose, the discovery ofquality problems, if there is any, associated with rebar installations is often too late to secure timely and costefficient repair. There is a need for proactive quality control and assurance methods that can assist field inspec-tors to quickly inspect and monitor code compliance of installations of rebar and other embedded componentsbefore and during the placement of concrete. In this project, the utility of 3D laser scanning for quality controlof bridge deck construction is investigated. We demonstrated the common workow for field scan collection anddata analysis for verifying bridge deck construction quality. We focused on a set of parameters that need to bemonitored during bridge deck construction. The research results suggested that with careful planning and welldesigned workow, 3D laser scanning is an effective method for controlling the quality of bridge deck construction,and state DOTs should consider incorporating 3D scanning as a proactive quality control methods.
3D Laser Scanning for Quality Control and Assurance in Bridge Deck Construction
2014
37 pages
Report
Keine Angabe
Englisch
Highway Engineering , Construction Management & Techniques , Construction Materials, Components, & Equipment , Structural Analyses , Civil Engineering , Information Systems , Optics & Lasers , Bridges (Structures) , Health monitoring , 3D (Three Dimensional) , Scanning , Construction , Inspection , Management planning and control , Algorithms , Performance evaluation , Bridge maintenance , Rehabilitation , Tables (Data) , Vibrations , Implementation , Structural health monitoring (SHM) , 3d laser scanning
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