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SUMMARY:The effect of geometry and topology on the mechanics of grid shell
 s - Samar Malek
DTSTART:20130301T150000Z
DTEND:20130301T160000Z
UID:TALK43448@talks.cam.ac.uk
CONTACT:Lorna Everett
DESCRIPTION:Abstract:  The use of grid shell structures in architecture an
 d structural engineering has risen in the past decade\, yet fundamental re
 search on the mechanics of such structures is lacking.  A grid shell is a 
 long-span structure comprised of a single-layer lattice of members that fo
 rms a curved surface.  They can be adapted to existing spaces as in the Gr
 eat Court at the British Museum or to create new structures like the Weald
  and Downland Museum.  \nThis talk will present the change in the buckling
  capacity as the following design parameters are varied: the grid topology
 \, spacing\, and the global curvature.  The buckling capacity of two typic
 al grid shells – the spherical cap and the corrugated barrel vault – i
 s evaluated both analytically\, using the concept of the equivalent contin
 uum\, and numerically\, using the finite element method.  Lastly\, design 
 guidelines aimed to maximize a grid shell’s capacity and efficiency and 
 to facilitate the discussion between architect and engineer are proposed. 
  \nBiography: Samar Malek is a structural engineer who completed her Ph.D.
  in Structures and Materials at the Massachusetts Institute of Technology\
 , Department of Civil and Environmental Engineering. She is the 2012 Marsh
 all-Sherfield Fellow which is awarded to one American scientist or enginee
 r by the UK Marshall Commission.  She is currently completing her fellowsh
 ip at the University of Bath\, Department of Architecture and Civil Engine
 ering.\n
LOCATION:Engineering Department - **LR6**
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