Naslov
Simplified Seismic Analysis of RC Structures

Autori
Morić, Dragan ; Hadzima, Marijana

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

Izvornik
Proceedings of the International Symposium "Durability and Maintenance of Concrete Structures", Dubrovnik, Croatia, October 21-23, 2004. / Radić, Jure - Zagreb : Croatian Society of Structural Engineers and Austrian Society for Concrete and Construction Technology, 2004, 155-162

Skup
Durability and Maintenance of Concrete Structures

Mjesto i datum
Dubrovnik, Hrvatska, 21.10.2004. - 23.10.2004

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
RC Structures; Non-linear seismic analysis; SDOF model

Sažetak
Detail descriptions of the regular structures are given by European seismic code. It is a plane symmetrical structure with constant vertical stiffness. This paper is based on following hypothesis: Seismic response analysis of regular structure is quite correct if it is done as simplified non-liner analysis with time history function of ground motion, as input load, and SDOF model with known weight, elastic stiffness, damping, elastic base shear capacity and post-elastic stiffness, representing the structure. Weight of structure is known, elastic stiffness can be defined by non-linear static push analysis and dumping can be assumed depending of type of structure (5% for RC structures). Most important step in described approach is definition of elastic base shear capacity and post-elastic stiffness. Both parameters depend of failure mechanism and potent ional of non-linear deformation absorption capacity. Three cases are described in paper: Regular structure with RC walls tested by Camus working group named as Camus3 experiment (July 2000), Regular RC frame and RC bridge in longitudinal direction. Good conformity of the Camus 3 experiment results with numeric simulation, as well as comparators of results given by space model and SDOF model in the other two cases, shows that such simplified seismic analysis is quite acceptable. Procedure is rather quick and easy with extremely simplified structure modelling.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

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