scholarly journals AMBIENT VIBRATION TEST ON AN EXISTING PRESTRESSED CONCRETE BRIDGE

2021 ◽  
Author(s):  
Alessandra De Angelis ◽  
Giacomo Esposito ◽  
Giuseppe Maddaloni ◽  
Edoardo Cosenza ◽  
Maria Rosaria Pecce
Keyword(s):  
Prestressed Concrete ◽  
Ambient Vibration ◽  
Vibration Test ◽  
Concrete Bridge ◽  
Ambient Vibration Test ◽  
Prestressed Concrete Bridge

Field Tests and Simulation of Lion-Head River Bridge

2005 ◽  
Author(s):  
Yao-Min Fang ◽  
Jun-Ping Pu
Keyword(s):  
Prestressed Concrete ◽  
Seismic Isolation ◽  
Field Tests ◽  
Ambient Vibration ◽  
Vibration Test ◽  
Original Design ◽  
Ambient Vibration Test ◽  
Theoretical Simulation ◽  
Lead Rubber Bearings ◽  
Rubber Bearings

Lion-Head River Bridge is a parallel twin bridge. The East Bridge was designed and constructed as a traditional prestressed concrete box of bridge (Pot Bearings); and the West Bridge used seismic isolation devices (Lead Rubber Bearings). The behaviors of these two bridges are compared with each other through several field tests including the ambient vibration test, the force vibration test induced by shakers, and the free vibration test induced by push and fast release devices. During the period of this construction, the East and West bridges were strongly damaged by Chi-Chi and Chi-I earthquakes and had been retrofitted. The damage changed the natural frequencies of the bridges, which was explored from the ambient vibration test. The models of the two bridges are simulated by finite element method according to the original design and the soil-structure interaction was put into consideration in the models. Simulations were modified based on the results of the every test in the field. The dynamic parameters of the bridges are identified and compared with those from the theoretical simulation. The efficiency of isolated bridge is observed and verified.

Chloride Testing of 27-Vear-Old Prestressed Concrete Bridge Beams

PCI Journal ◽  
1992 ◽  
Vol 37 (5) ◽  
pp. 68-79 ◽  
Author(s):  
Valerie E. Murray ◽  
Gregory C. Frantz
Keyword(s):  
Prestressed Concrete ◽  
Concrete Bridge ◽  
Bridge Beams ◽  
Prestressed Concrete Bridge

Full Depth Precast and Precast, Prestressed Concrete Bridge Deck Panels

PCI Journal ◽  
1995 ◽  
Vol 40 (1) ◽  
pp. 59-80 ◽  
Author(s):  
Mohsen A. lssa ◽  
Ahmad-Talalldriss ◽  
lraj I. Kaspar ◽  
Salah Y. Khayyat
Keyword(s):  
Prestressed Concrete ◽  
Bridge Deck ◽  
Concrete Bridge ◽  
Deck Panels ◽  
Concrete Bridge Deck ◽  
Prestressed Concrete Bridge ◽  
Precast Prestressed Concrete
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