BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:The use of glass envelopes for building stability - Glass panel un
 der shear loading - Danijel Mocibob (formerly EPFL)
DTSTART:20100205T160000Z
DTEND:20100205T170000Z
UID:TALK23038@talks.cam.ac.uk
CONTACT:Katerina Ondrova
DESCRIPTION:The latest trends in contemporary architecture are fully trans
 parent pavilions: a single storey building free of any steel or concrete f
 rame\, where glass panels are used as unique vertical structural elements 
 to support the roof and as wind bracing to stabilize and stiffen the build
 ing. In this application\, individual glass panel is supported on two side
 s (roof and foundation) and subjected to in-plane shear force\, out-of-pla
 ne distributed load and in-plane compression force. While several studies 
 on glass plate behaviour under distributed load and column buckling exist\
 , shear buckling of two sides supported glass panel has not been investiga
 ted yet. The local behaviour of the connection devices and the global beha
 viour of the glass panel under in-plane shear force are studied by means o
 f experimental investigations\, numerical modelling and parametric analyse
 s. \n\nTwo structural concepts are developed: \n- point support concept - 
 the glass panel is attached to the substructure by bolted connections at c
 orners\n- linear support concept - the glass panel is glued to the substru
 cture by two shorter sides.\n\nInvestigation on connection devices was con
 ducted in order to understand the behaviour of different types of glass/su
 bstructure bolted and glued connections and their influence on surrounding
  glass. Tests on full size glass panels were used to estimate their shear 
 buckling behaviour. \n\nAdvanced numerical models of glass panel were impl
 emented using the FE code ANSYS. By elastic buckling analysis the critical
  shear buckling force\, shear buckling coefficient and shear buckling mode
 s were determined. By means of nonlinear buckling analyses the global glas
 s panel behaviour was studied analysing glass panel deformations\, stresse
 s distribution and support reactions. Comparing their results with experim
 ental measurements validated the model. \n\nA parametric study was carried
  out to identify the most important parameters. The influence of the glass
  panel and connection device geometrical/material properties on critical s
 hear force\, global deformation\, stress distribution and support reaction
  were determined. \n\nA simple method for preliminary design of glass pane
 ls subjected to in-plane shear force was proposed for determining the glas
 s panel shear buckling resistance. Finally\, practical recommendations for
  use of glass panels in fully-transparent pavilions as structural elements
  were given.
LOCATION:Engineering Department -LR5
END:VEVENT
END:VCALENDAR