Tehnički vjesnik, Vol. 17 No. 3, 2010.
Pregledni rad
Influence of the vertical component of earthquake on large span RC beams
Damir Varevac
orcid.org/0000-0002-0473-0639
; J. J. Strossmayer University of Osijek, Faculty of Civil Engineering, Crkvena 21, 31000 Osijek, Croatia
Hrvoje Draganić
orcid.org/0000-0001-5060-7781
; J. J. Strossmayer University of Osijek, Faculty of Civil Engineering, Crkvena 21, 31000 Osijek, Croatia
Goran Gazić
; J. J. Strossmayer University of Osijek, Faculty of Civil Engineering, Crkvena 21, 31000 Osijek, Croatia
Sažetak
Most of the previous studies in the field of earthquake engineering have neglected the effects of vertical ground motion and are usually guided by horizontal motion. The EN1998 proposes action analysis of the vertical acceleration for certain types of elements and their length and their distance from the active fault. In this paper simply supported beams with various spans, 10, 15 and 20 m, are calculated for the action of real earthquakes with different intensities. Two typical cross sections were chosen: "T" cross section and rectangular cross section. The linear and nonlinear material models were used, and all the models were calculated using rigid and elastic supports. Through the combinations of these different spans, cross sections, material models and types of the supports, the influence and importance of the vertical component of the ground motion is estimated. Based on the results obtained it was concluded that there is a need for the application of vertical acceleration in the seismic analysis of these elements.
Ključne riječi
bending moment; earthquake; rectangular cross section; "T" cross section; vertical acceleration
Hrčak ID:
59650
URI
Datum izdavanja:
30.9.2010.
Posjeta: 2.276 *