NDA@SZTAKI

Seismic fragility assessment of integral precast multi-span bridges in areas of moderate seismicity

Simon, JĂłzsef

Vigh, LĂĄszlĂł Gergely

Springer

2016

TA Engineering (General). Civil engineering (General) / ĂĄltalĂĄnos mĂŠrnĂśki tudomĂĄnyok

TG Bridge engineering / hĂ­dĂŠpĂ­tĂŠs

In lack of seismic provisions in the pre-Eurocode ages, most of the existing Hungarian bridges were not designed for seismic actions, therefore their seismic performance is questionable. The most commonly used structural type in highway construction is the integral precast multi-girder bridge. These bridges are typically constructed as continuous multi-support systems with monolithic joints at each support, thus their behavior may be signicantly different from those applying simply supported beams and conventional bearings. A parametric fragility analysis of a wide range of different layouts is carried out using detailed and advanced non-linear numerical models. The results indicate that the abutment joints are highly vulnerable and piers are also critical for longer bridges. The study implies that without seismic design, integral precast multi-girder bridges are highly susceptible to pier shear failure, the probability of collapse is relatively high. The results also provide a solid basis for retrot planning as well as for development of design concepts of newly built structures in moderate seismic zones.

magyar

Article

PeerReviewed

info:eu-repo/semantics/article

text

http://real.mtak.hu/39996/1/BEE_SJ_VLG_AUTHOR_VERSION.pdf

Simon, JĂłzsef and Vigh, LĂĄszlĂł Gergely (2016) Seismic fragility assessment of integral precast multi-span bridges in areas of moderate seismicity. Bulletin of Earthquake Engineering. pp. 1-26. ISSN 1570-761X

http://real.mtak.hu/39996/

http://dx.doi.org/10.1007/s10518-016-9947-y

DOI 10.1007/s10518-016-9947-y