TY - JOUR
T1 - Coupled form-finding and grid optimization approach for single layer grid shells
AU - Richardson, James Norman
AU - Adriaenssens, Sigrid M.
AU - Filomeno Coelho, Rajan
AU - Bouillard, Philippe
PY - 2013/7/1
Y1 - 2013/7/1
N2 - This paper demonstrates a novel two-phase approach to the preliminary structural design of grid shell structures, with the objective of material minimization and improved structural performance. The two-phase approach consists of: (i) a form-finding technique that uses dynamic relaxation with kinetic damping to determine the global grid shell form, (ii) a genetic algorithm optimization procedure acting on the grid topology and nodal positions (together called the 'grid configuration' in this paper). The methodology is demonstrated on a case study minimizing the mass of three 24 × 24. m grid shells with different boundary conditions. Analysis of the three case studies clearly indicates the benefits of the coupled form-finding and grid configuration optimization approach: material mass reduction of up to 50% is achieved.
AB - This paper demonstrates a novel two-phase approach to the preliminary structural design of grid shell structures, with the objective of material minimization and improved structural performance. The two-phase approach consists of: (i) a form-finding technique that uses dynamic relaxation with kinetic damping to determine the global grid shell form, (ii) a genetic algorithm optimization procedure acting on the grid topology and nodal positions (together called the 'grid configuration' in this paper). The methodology is demonstrated on a case study minimizing the mass of three 24 × 24. m grid shells with different boundary conditions. Analysis of the three case studies clearly indicates the benefits of the coupled form-finding and grid configuration optimization approach: material mass reduction of up to 50% is achieved.
UR - http://www.scopus.com/inward/record.url?scp=84875783311&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84875783311&partnerID=8YFLogxK
U2 - 10.1016/j.engstruct.2013.02.017
DO - 10.1016/j.engstruct.2013.02.017
M3 - Article
AN - SCOPUS:84875783311
SN - 0141-0296
VL - 52
SP - 230
EP - 239
JO - Structural Engineering Review
JF - Structural Engineering Review
ER -