Innovative Seismic Retrofitting of Bridge: A Perspective Study

Introduction As evidenced by recent earthquakes, many existing bridge structural designs are not affected by earthquakes. The consequences of serious damage to the bridge structure include the potential loss of life and property, which can cause significant economic and social impacts, and disruption of the transport system. Since bridges are susceptible to damage, it is highly desirable to implement appropriate seismic restoration techniques before future earthquakes occur.

The bridge began refurbishing in 1996 and was analyzed by the bridge engineering company Buckland & Taylor as part of the Caltrans Phase II earthquake remodeling program. Detailed assessment of the seismic resistance of the bridge finds solutions that can solve several problems such as serious load factor, very limited physical path, maintenance of existing historic building appearance, and California We are faced with the challenge. State requirement At least one bridge always stays open. The key to design is to post tension the entire deck vertically from one end to the other.

The bridge between Golden Gate Bride, Richmond - San Rafael Bridge, Bay Bridge, San Mateo - Hayward Bridge, Dumbarton Bridge - was recently remodeled to maintain strong seismic activity. The Metropolitan Transportation Committee (MTC) announced a detailed report on the plan at the end of 2016. BART Transbay Tube has also undergone earthquake rebuilding. These decisions by municipal agencies are excellent measures to protect infrastructure across national borders due to future seismic activity and corrosive damage caused by sea level rise, but the intersection of bridges, the coastal roads on the ground and the ground The railway is still flooded and climate related risk of liquefaction damage

Mark R. Capron conducted an earthquake evaluation by pushing over a bridge of length 2,164 meters near the New Madrid earthquake zone in the southeastern state of Missouri. His research includes an existing structure, an improved substructure of the column jacket, a cap beam correction, and an isolation mount. Studies have shown that the existing structure occupies 30% to 40% of the displacement required for the 500-year design level and is significantly lower than 1000 and 2500 years. Cross performance