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A platform for research: civil engineering, architecture and urbanism
Coupled form-finding and grid optimization approach for single layer grid shells
Highlights ► A novel approach to the preliminary design of grid shell structures. ► 2-Phase approach: form finding and grid topology and nodal positions optimization. ► Demonstrate on case study minimizing the mass of 3 grid shells.
Abstract 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 24×24m 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.
Coupled form-finding and grid optimization approach for single layer grid shells
Highlights ► A novel approach to the preliminary design of grid shell structures. ► 2-Phase approach: form finding and grid topology and nodal positions optimization. ► Demonstrate on case study minimizing the mass of 3 grid shells.
Abstract 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 24×24m 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.
Coupled form-finding and grid optimization approach for single layer grid shells
Richardson, James Norman (author) / Adriaenssens, Sigrid (author) / Filomeno Coelho, Rajan (author) / Bouillard, Philippe (author)
Engineering Structures ; 52 ; 230-239
2013-02-11
10 pages
Article (Journal)
Electronic Resource
English
Coupled form-finding and grid optimization approach for single layer grid shells
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