Naslov
Experimental and numerical investigation of bridge columns with smooth reinforcement and atypical cross section

Autori
Srbić, Mladen ; Mandić Ivanković, Ana ; Vlašić, Anđelko ; Kušter Marić, Marija ; Skokandić, Dominik ; Hrelja Kovačević, Gordana ; Mujkanović, Nijaz

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

Izvornik
Next Generation of Concrete Engineering for Post- Pandemic Europe / Salamak, Marek - Krakov : Nbi media, 2022, 309-324

ISBN
978-83-938649-7-3

Skup
13th Central European Congress on Concrete Engineering (CCC 2022)

Mjesto i datum
Zakopane, Poljska, 13.09.2022. - 14.09.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Experimental investigation ; bridge column ; smooth reinforcement ; atypical cross section

Sažetak
A large part of the Croatian territory is in an extremely seismically active area. This was proven by two strong earthquakes that have occurred in the last two years. In such events, it is very important to provide corridors for safe evacuation of people and transport of aid to the earthquakeaffected areas. In these earthquakes, bridges, as a crucial element of the transportation infrastructure, mostly suffered only minor damage, but sufficient enough to raise questions about their actual earthquake resistance. Most bridges in the last century were built with minimal or no seismic regulations, using smooth reinforcement. Columns, as main structural elements for seismic resistance of bridges, often deviate from the classic rectangular and circular cross-sections for which guidelines exist in the literature and in the codes. In these elements, hidden reserves in bearing capacity can be found when allowing the development of plastic joints and deformations within the plastic region. The rotation of the end section with the rotation of one or two sections at the level of the plastic joint gives the total rotational capacity, which directly affects the stiffness of the formed elements and, consequently, the seismic response of the whole structure. Evaluation of this behavior presents a real challenge in the assessment of the actual seismic resistance of such structures. This paper presents an experimental and numerical analysis of the scaled bridge pier models under horizontal and vertical load. The level of deformations, stresses, displacements and crack distribution of column elements are analyzed, and conclusions are given regarding the basic indicators of seismic resistance.

Izvorni jezik
Engleski

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