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Recommandé
DESIGN, MODELING, ANALYSIS, CONSTRUCTION FOLLOW UP
Odotechniki ltd underground works
Odotechniki ltd underground works
Odotechniki Ltd Consulting Engineers
Presentation for Transportation Research Board, Annual Meeting 2013 Presented in the session "Topics in Concrete Bridges"
Assessment of the Shear Capacity of Existing Reinforced Concrete Solid Slab B...
Assessment of the Shear Capacity of Existing Reinforced Concrete Solid Slab B...
Eva Lantsoght
Needs Study of County and Township Roads and Bridges
Needs Study of County and Township Roads and Bridges
UGPTI
Mary McCahon, TranSystems/Abba Lichtenstein Associates
History Still Matters, or It Should for Effective Management of Post-WWII Bri...
History Still Matters, or It Should for Effective Management of Post-WWII Bri...
preservationcombination
Design of Bridges
Odotechniki bridges
Odotechniki bridges
Odotechniki Ltd Consulting Engineers
Presentation made by Claudia Zelaschi @ University of Porto during the OpenSees Days Portugal 2014 workshop
Numerical Simulation of the Seismic Behaviour of RC Bridge Populations for De...
Numerical Simulation of the Seismic Behaviour of RC Bridge Populations for De...
openseesdays
As the bridge stock in The Netherlands and Europe is ageing, various methods to analyze existing bridges are being studied. Load testing of bridges is an option to study the capacity when crucial information about the structure is lacking. This information could be related to the material (for example, the effect of ASR on the capacity) as well as to the structural system (for example, the effect of restraints at the supports or transverse redistribution capacity). When it is decided to load test a bridge, the question arises which maximum load should be attained during the experiment to approve the capacity of the bridge, and which criteria, based on the measurements during the test, would indicate that the test needs to be aborted before reaching the maximum desired load (the “stop criteria”). A number of reinforced concrete slab bridges have been load tested over the course of the past few years. These load tests were pilot cases, in which the bridges were heavily equipped with sensors, to study the bridges’ behavior at critical positions for bending moment and shear. The test results were then extensively analyzed, and compared to the stop criteria available in the currently used codes and guidelines. As a result of the analysis and experiments, recommendations are given for proof loading of bridges. These recommendations are important, since they will form the basis of a guideline for proof loading of existing concrete bridges that is under development in The Netherlands.
Load testing of reinforced concrete bridges in the Netherlands
Load testing of reinforced concrete bridges in the Netherlands
Eva Lantsoght
Abstract The paper presents the comparison of the effect of different standard loadings on a set of reinforced concrete bridge decks using the finite-element method. The parameters investigated include the aspect ratio (span/width) and type of loading. The investigations are conducted on two lane slab bridge decks of span 5m to 9.5m and two lane T beam bridge decks of span 7.5m to 20m. A total of 36 bridge models were analyzed. The variation of different critical structural response parameters such as deflection, longitudinal bending moment, transverse moment, shear force and torsional moments are evaluated for IRC loading (IRC Class A and 70R loadings), AASHTO loading (HL93) and Euro standard loading (LM1). The results shows that the maximum difference in deflection and longitudinal bending moment for the two IRC standard loading ranges from 5 to 15%. While the difference between corresponding values for the AASHTO loading in the range of 5 to 17%. The maximum axle load of euro standard loading is found to be 2.2 times higher than IRC class A loading maximum axle load hence the values of structural response parameters are increased by 1.7 to 1.8 times. Therefore there is a need for adopting simplified and more realistic standard loads in the future. Keywords: Bridges, Concrete deck slabs; Finite element method; T-beam bridge decks; Aspect ratio; Live load, IRC code, AASHTO code and Euro code.
Analysis of rc bridge decks for selected national a nd internationalstandard ...
Analysis of rc bridge decks for selected national a nd internationalstandard ...
eSAT Journals
Recommandé
DESIGN, MODELING, ANALYSIS, CONSTRUCTION FOLLOW UP
Odotechniki ltd underground works
Odotechniki ltd underground works
Odotechniki Ltd Consulting Engineers
Presentation for Transportation Research Board, Annual Meeting 2013 Presented in the session "Topics in Concrete Bridges"
Assessment of the Shear Capacity of Existing Reinforced Concrete Solid Slab B...
Assessment of the Shear Capacity of Existing Reinforced Concrete Solid Slab B...
Eva Lantsoght
Needs Study of County and Township Roads and Bridges
Needs Study of County and Township Roads and Bridges
UGPTI
Mary McCahon, TranSystems/Abba Lichtenstein Associates
History Still Matters, or It Should for Effective Management of Post-WWII Bri...
History Still Matters, or It Should for Effective Management of Post-WWII Bri...
preservationcombination
Design of Bridges
Odotechniki bridges
Odotechniki bridges
Odotechniki Ltd Consulting Engineers
Presentation made by Claudia Zelaschi @ University of Porto during the OpenSees Days Portugal 2014 workshop
Numerical Simulation of the Seismic Behaviour of RC Bridge Populations for De...
Numerical Simulation of the Seismic Behaviour of RC Bridge Populations for De...
openseesdays
As the bridge stock in The Netherlands and Europe is ageing, various methods to analyze existing bridges are being studied. Load testing of bridges is an option to study the capacity when crucial information about the structure is lacking. This information could be related to the material (for example, the effect of ASR on the capacity) as well as to the structural system (for example, the effect of restraints at the supports or transverse redistribution capacity). When it is decided to load test a bridge, the question arises which maximum load should be attained during the experiment to approve the capacity of the bridge, and which criteria, based on the measurements during the test, would indicate that the test needs to be aborted before reaching the maximum desired load (the “stop criteria”). A number of reinforced concrete slab bridges have been load tested over the course of the past few years. These load tests were pilot cases, in which the bridges were heavily equipped with sensors, to study the bridges’ behavior at critical positions for bending moment and shear. The test results were then extensively analyzed, and compared to the stop criteria available in the currently used codes and guidelines. As a result of the analysis and experiments, recommendations are given for proof loading of bridges. These recommendations are important, since they will form the basis of a guideline for proof loading of existing concrete bridges that is under development in The Netherlands.
Load testing of reinforced concrete bridges in the Netherlands
Load testing of reinforced concrete bridges in the Netherlands
Eva Lantsoght
Abstract The paper presents the comparison of the effect of different standard loadings on a set of reinforced concrete bridge decks using the finite-element method. The parameters investigated include the aspect ratio (span/width) and type of loading. The investigations are conducted on two lane slab bridge decks of span 5m to 9.5m and two lane T beam bridge decks of span 7.5m to 20m. A total of 36 bridge models were analyzed. The variation of different critical structural response parameters such as deflection, longitudinal bending moment, transverse moment, shear force and torsional moments are evaluated for IRC loading (IRC Class A and 70R loadings), AASHTO loading (HL93) and Euro standard loading (LM1). The results shows that the maximum difference in deflection and longitudinal bending moment for the two IRC standard loading ranges from 5 to 15%. While the difference between corresponding values for the AASHTO loading in the range of 5 to 17%. The maximum axle load of euro standard loading is found to be 2.2 times higher than IRC class A loading maximum axle load hence the values of structural response parameters are increased by 1.7 to 1.8 times. Therefore there is a need for adopting simplified and more realistic standard loads in the future. Keywords: Bridges, Concrete deck slabs; Finite element method; T-beam bridge decks; Aspect ratio; Live load, IRC code, AASHTO code and Euro code.
Analysis of rc bridge decks for selected national a nd internationalstandard ...
Analysis of rc bridge decks for selected national a nd internationalstandard ...
eSAT Journals
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Amir Ghatefar
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Amir Ghatefar PhD
EIT | Project (research) Simulation GFRP & Steel RC bridges subjected to fatigue load (ATENA) System: Composite system with steel girders Project Location: Canada
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