Title of article :
Dynamic characteristics of a long span seismic isolated bridge
Author/Authors :
Ruben L. Boroschek، نويسنده , , Rubén L. and Moroni، نويسنده , , Marيa O. and Sarrazin، نويسنده , , Mauricio، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
12
From page :
1479
To page :
1490
Abstract :
The central zone of Chile is located in a high seismic risk area with occurrence of magnitude 7 earthquakes every 10 years and magnitude 8 events every 90 years. This paper deals with the mechanical and dynamic characteristics of a 383 m long seismic isolated bridge located in that area. The tests carried out on rubber components, isolators and the bridge structure are presented. Some simple structural models that show good correlation with measured response are also addressed. A strong motion permanent network installed on the bridge allowed the recording of ambient-traffic vibrations as well as seismic motions. Seismic records show the beneficial effect of the isolation in the horizontal direction, but important amplification occurs in the vertical direction for relatively high frequency components.
Keywords :
Response records , Earthquake response , Ambient vibration , structural monitoring , Base isolated bridge
Journal title :
Engineering Structures
Serial Year :
2003
Journal title :
Engineering Structures
Record number :
1639489
Link To Document :
بازگشت