A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Vibration Testing of Joist Supported Footbridges
This paper presents a portion of extensive experimental and analytical studies on two joist supported laboratory footbridges to determine the effect of bottom chord extensions on their static and dynamic properties. Finite element computer models were created to simulate and compare the results of stiffness and vibrations tests for different bottom chord extension configurations. The philosophy was to test the footbridges and update the finite element model, trying to minimize the discrepancies between the test results and the FE model for better response prediction. The stiffness test results indicate that bottom chord extensions help reduce deflections; placing them before the concrete placement is observed to be a better solution than reinstalling them to a joist supported system with a cured concrete slab. The vibration test results indicate that bottom chord extensions increase the natural frequencies, but they do not necessarily decrease the peak acceleration levels.
Vibration Testing of Joist Supported Footbridges
This paper presents a portion of extensive experimental and analytical studies on two joist supported laboratory footbridges to determine the effect of bottom chord extensions on their static and dynamic properties. Finite element computer models were created to simulate and compare the results of stiffness and vibrations tests for different bottom chord extension configurations. The philosophy was to test the footbridges and update the finite element model, trying to minimize the discrepancies between the test results and the FE model for better response prediction. The stiffness test results indicate that bottom chord extensions help reduce deflections; placing them before the concrete placement is observed to be a better solution than reinstalling them to a joist supported system with a cured concrete slab. The vibration test results indicate that bottom chord extensions increase the natural frequencies, but they do not necessarily decrease the peak acceleration levels.
Vibration Testing of Joist Supported Footbridges
Avci, Onur (author) / Setareh, Mehdi (author) / Murray, Thomas M. (author)
Structures Congress 2010 ; 2010 ; Orlando, Florida, United States
Structures Congress 2010 ; 878-889
2010-05-18
Conference paper
Electronic Resource
English
Vibration Testing of Joist Supported Footbridges
| British Library Conference Proceedings | 2010
Retrofitting Steel Joist Supported Footbridges for Improved Vibration Response
| British Library Conference Proceedings | 2012