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SUMMARY:Nonlinear analysis of composite steel-concrete cable-stayed bridge
 s at service and ultimate states
DTSTART:20150320T121500
DTEND:20150320T131500
DTSTAMP:20260506T012321Z
UID:b8f05063d0cbea7f69ef63c9fe8638d3f84c78f74057074fa5066190
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. José Oliveira Pedro\, IST Lisbon University\, Portugal 
 (invited Professor at IIC spring 2015)\nThe nonlinear analysis of composit
 e steel-concrete cable-stayed bridges is presented. The FEModel used for t
 he composite deck\, including the flexible shear connection between the co
 ncrete slab and the steel girders\, are first presented.\nGeometrical and 
 material nonlinear behaviours of both steel and concrete materials are bri
 efly discussed\, as well as\, the cable's sag and time dependent effects d
 ue to load history\, creep\, shrinkage and aging of concrete.\nThese main 
 sources of nonlinearity are evaluated for a 420 m main span composite cabl
 e-stayed bridge\, under service conditions.\nThe failure load and the fail
 ure mechanism are also analysed\, both at the end of construction and at l
 ong term.\nThe influence of the following factors is presented: (1) deck l
 oad pattern\, (2) time dependent effects\, (3) cables' yielding and “cab
 le-out” effect\, (4) existence of intermediate piers at the lateral span
 s\, (5) effective slab width\, and (6) flexibility of the shear connection
 .\nBio : Graduation 1991\, MSc in 1995 and PhD in 2007 from IST Lisbon. Ph
 D Thesis entitled: L’analyse du comportement des ponts haubanés avec de
  tablier mixte acier-béton.\nSince 1991\, junior then senior engineer at 
 GRID design office\, participated in the design of over 50 bridge projects
 \, and also stadiums\, towers\, and other special structures. In parallel\
 , since graduation teacher and researcher at DEC (civil engineering depart
 ment) of IST Lisbon University. Promoted assistant professor in 2007\, spe
 cialist of steel\, steel-concrete bridges and special structures.
LOCATION:GC B3 30 http://plan.epfl.ch/?lang=fr&room=GCB330
STATUS:CONFIRMED
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