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IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century


IASS Symposium 2016

SESSION: Conceptual Design

Research on static properties and stability of super-large span Kiewitt type mega-latticed structure

< Table of Contents for Conceptual Design
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Conceptual Design
  • Pages: 7
  • Title: Research on static properties and stability of super-large span Kiewitt type mega-latticed structure
  • Author(s): Qingwen Zhang, Feng Fan
  • Keywords: super-large span, Kiewitt type mega-latticed structure, automatic configuration, static behaviors, stability performance
Abstract
This paper does some researches on whether several common rigid space structures are suitable for super-large span structure. Static behaviors of double-layer reticulated shell structure, local triple-layer reticulated shell structure, Ribbed type mega-latticed structure and Kiewitt type mega-latticed structure are compared and the results show that Kiewitt type mega-latticed structure is the most economic type in terms of steel consumption with the same span and load. According to the structural configuration of the structure analyzed through CAD 3D modeling, the geometrical connections of the main structure are studied in detail and the structural form parameters are put forward. The static behaviors, optimum of rod sections and stability analysis of Kiewitt type mega-latticed structure are studied based on the program firstly developed which can create the new structure automatically according to APDL parametric language. Finally the stabilities of the structure are studied by both linear and nonlinear methods and the load-displacement path is got through the Arc-length Method.

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