Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
In Situ Evaluation of Structures Using Load Testing
In-situ load testing is commonly used to assess the safety or the serviceability of an existing or new structural system or part of its elements for a particular external load condition. The most frequently used load testing procedure includes the in-situ load test method described in Chapter 20 of the ACI 318 - Building Code Requirements for Structural Concrete and the Cyclic Load Test method in ACI 437 and ACI 437.1R. This paper describes the load testing programs used for two field projects to evaluate the load capacity of existing and upgraded structural components. The main objective of this paper is to describe the process for determining the test load level, loading procedure, instrumentation, evaluation criteria and load test outcomes. The first case study is for the evaluation of the sidewalks for a historical steel bridge in which the supporting beams lost up to 70% of the original cross-section due to extensive corrosion. The load test was performed in order to assess whether the sidewalks were able to safely support the pedestrian load. The second case study is for the evaluation of a typical bay in an old reinforced concrete (RC) pan-joist floor system. The floor was being considered to support new telecommunication equipment that required an increase in the capacity of the floor system. Load tests were performed for typical existing members and members upgraded using externally bonded FRP reinforcement as well as bonded RC overlay.
In Situ Evaluation of Structures Using Load Testing
In-situ load testing is commonly used to assess the safety or the serviceability of an existing or new structural system or part of its elements for a particular external load condition. The most frequently used load testing procedure includes the in-situ load test method described in Chapter 20 of the ACI 318 - Building Code Requirements for Structural Concrete and the Cyclic Load Test method in ACI 437 and ACI 437.1R. This paper describes the load testing programs used for two field projects to evaluate the load capacity of existing and upgraded structural components. The main objective of this paper is to describe the process for determining the test load level, loading procedure, instrumentation, evaluation criteria and load test outcomes. The first case study is for the evaluation of the sidewalks for a historical steel bridge in which the supporting beams lost up to 70% of the original cross-section due to extensive corrosion. The load test was performed in order to assess whether the sidewalks were able to safely support the pedestrian load. The second case study is for the evaluation of a typical bay in an old reinforced concrete (RC) pan-joist floor system. The floor was being considered to support new telecommunication equipment that required an increase in the capacity of the floor system. Load tests were performed for typical existing members and members upgraded using externally bonded FRP reinforcement as well as bonded RC overlay.
In Situ Evaluation of Structures Using Load Testing
Galati, Nestore (Autor:in) / Alkhrdaji, Tarek (Autor:in)
Fifth Forensic Engineering Congress ; 2009 ; Washington, D.C., United States
Forensic Engineering 2009 ; 657-667
02.11.2009
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
In Situ Evaluation of Structures Using Load Testing
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Static load testing of building structures
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