||Tatjana ISAKOVIĆ // 1.01 Izvirni znanstveni članek
||SAIIDI, Mehdi, RANDALL, Matthew, MARAGAKIS, Emmanuel,
ISAKOVIĆ, Tatjana. Seismic restrainer design methods for simply supported
bridges. Journal of bridge engineering, 2001, vol. 6, no. 5, str.
307-315, graf. prikazi.
||Existing restrainer design methods recommended
by the American Association of the American Association of State Highway and
Transportation Officials (AASHTO) and the California Department of
Transportation (Caltrans) to prevent unseating in simply supported bridges
subjected to strong earthquakes were evaluated. Three new methods with different
levels of complexity were developed: W/2, modified Caltrans, and the equivalent
linear static design for restrainers. The adequacy of different design methods
was assessed using a nonlinear response history analysis computer program.
Effects of different earthquakes, substructure stiffness, bearing strength, seat
width, and skew angle were studied. It was found that in bridges with reinforced
concrete pier caps the inherently wide supports help prevent unseating, and
simple methods such the AASHTO and W/2 method are satisfactory. In bridges with
steel pier caps that provide narrow bearings the modified Caltrans method is
recommended. The relatively involved equivalent linear static design for
restrainers method is a more rational design procedure and leads to considerably
fewer restrainers than others [COBISS.SI-ID 1392737]
||1.01 Izvirni znanstveni članek
||1392737 Polni zapis iz sistema COBISS
Vpisal 2009/06/10 11:57