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A platform for research: civil engineering, architecture and urbanism
Seismic Performance of Polynomial Friction Pendulum Isolator (PFPI) on Benchmark Cable-Stayed Bridge
The performance of polynomial friction pendulum isolator (PFPI) applied to the benchmark cable-stayed bridge is explored. Seismic performance of the PFPI is evaluated with the basic friction pendulum system (FPS) based on the evaluation criteria stated in the phase I benchmark problem. The surface curvature of the PFPI is varied using a polynomial function to alleviate the drawbacks of FPS whose surface is spherical. The energy-absorbing capacity and the horizontal flexibility during friction are the two important parameters developed in the PFPI system. A parametric study has been done to determine the optimum value of the PFPI key parameters. The numerical outcome designated that the PFPI system is seismically superior to that of the conventional FPS isolated system because of its variable curvature corresponding to the ground motion excitation. It is also noticed that a maximum deck displacement along longitudinal direction has been significantly reduced by PFPI than FPS.
Seismic Performance of Polynomial Friction Pendulum Isolator (PFPI) on Benchmark Cable-Stayed Bridge
The performance of polynomial friction pendulum isolator (PFPI) applied to the benchmark cable-stayed bridge is explored. Seismic performance of the PFPI is evaluated with the basic friction pendulum system (FPS) based on the evaluation criteria stated in the phase I benchmark problem. The surface curvature of the PFPI is varied using a polynomial function to alleviate the drawbacks of FPS whose surface is spherical. The energy-absorbing capacity and the horizontal flexibility during friction are the two important parameters developed in the PFPI system. A parametric study has been done to determine the optimum value of the PFPI key parameters. The numerical outcome designated that the PFPI system is seismically superior to that of the conventional FPS isolated system because of its variable curvature corresponding to the ground motion excitation. It is also noticed that a maximum deck displacement along longitudinal direction has been significantly reduced by PFPI than FPS.
Seismic Performance of Polynomial Friction Pendulum Isolator (PFPI) on Benchmark Cable-Stayed Bridge
Lecture Notes in Civil Engineering
Das, Bibhuti Bhusan (editor) / Barbhuiya, Salim (editor) / Gupta, Rishi (editor) / Saha, Purnachandra (editor) / Sen, Pratik (author) / Saha, Purnachandra (author)
2020-07-03
14 pages
Article/Chapter (Book)
Electronic Resource
English
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