Naslov
Repair of Bridges in Seismic Areas for Earthquake Resilient Society

Autori
Čaušević, Mehmed ; Bulić, Mladen

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 1st International Conference CoMS_2017 / Banjad Pečur, Ivana ; Baričević, Ana ; Štirmer, Nina ; Bjegović, Dubravka - Zagreb : Građevinski fakultet Sveučilišta u Zagrebu, 2017, 664-670

ISBN
978-953-8168-04-8

Skup
CONSTRUCTION MATERIALS FOR SUSTAINABLE FUTURE

Mjesto i datum
Zadar, Hrvatska, 19.04.2017. - 21.04.2017

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Resilience, Retrofit, Earthquake loading, Bridges, Vulnerability, Added material

Sažetak
Emergency functionality and rapid recovery of road networks after a strong intensity earthquake that has triggered additional hazards such as post-earthquake fires, landslides, tsunamis, bridge collapses and a series of large aftershocks is a vital requirement for the sustainability of any modern society, which, in the light of recent earthquake events, has not yet been properly addressed. In most national codes and provisions duration of bridges is supposed to be at least 50 years. Design codes must be based on functionality criteria rather than safety. Some bridges which were built before 1970s which are still in use in either Europe or Japan or the U.S. have been designed with little or with no any consideration for seismic demand. Majority of these bridges lack the ductility and strength to resist earthquakes. Meanwhile strong motion earthquakes have revealed all vulnerable places and wrong detailing on almost all bridges built in seismically active regions more than fifty years ago. After the 1971 San Fernando earthquake the U.S. for the first time in the world started seismic retrofit programs for bridges. Japan also started similar programs, especially after the 1995 Kobe earthquake. European Union may not be out of this global problem and must have own retrofit programs for bridges. Thousands of existing bridges built more than fifty years ago in earthquake zones of EU are still in operation waiting to be retrofitting in order to withstand loading of strong intensity earthquakes. In this sense the first part of this paper is devoted to the latest knowledge concerning earthquake loading and methods of seismic analysis of bridges. Some solutions, recommendations and comments for retrofitting of supports and joints of steel and concrete bridges made by authors using new added materials and the latest concepts for structural upgrading will be presented as the main goal to contribute to earthquake resilient society.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA