Dynamic Stability Behaviour of Lattice Domes with Substructures. Issue 1 (March 2014)

• Record Type: Journal Article
• Authors: Sun, Jianheng; Li, Hongmei; Nooshin, Hoshyar; Parke, Gerard A.R.
• Is Part Of: International journal of space structures. Volume 29:Issue 1(2014)
• Page Start: 1
• Page End: 7
• Publication Date: 2014-03
• Subjects: Single-layer lattice domes -- Dynamic stability behaviour -- Dynamic buckling -- Substructure -- Stiffness factor of substructure -- Rise to span ratio; Space frame structures -- Periodicals; Space (Architecture) -- Periodicals; Space (Architecture); Space frame structures; Periodicals; 624.177
• DOI: 10.1260/0266-3511.29.1.1
• Languages: English
• ISSNs: 0956-0599

Abstract

Dynamic behaviour is one of the main controlling factors for the design of large single-layer lattice dome structures. Considering a single-layer lattice dome and its supporting frame as an integral whole, this paper investigates the dynamic stability behaviour of the dome under seismic loads. In the analysis, the initial geometric imperfections, together with geometric and material nonlinearities, are considered. A factor expressing the degree of stiffness of the supporting frame is also used in the analysis. The effects of supporting frames of different stiffness and different rise to span ratios of the domes are also investigated. The results of the investigation show that the stiffness of the substructure can play a very important role in the dynamic stability behaviour of the dome.