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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Estimation Theory on Initial Prestress of Cables in Mega Steel Frame and Cable Bracing Structure
How to estimate initial cable pretension is one of key problems for mega steel frame and cable bracing structure. In this structure, pre-stressed cables work as components of lateral resistance and elastic supports for mega-beams. Based on these two roles, two principles about determination of initial pretension in them were presented. One is that the residual tension will be near to zero in the most unfavorable condition. The other is that the mega-beam deformation, not showing inverted-arch shape, meets Chinese code requirements in the normal service state. According to these two rules and superposition principle of structural deformation, the relationship between the mega-beam deformation and the cable force under vertical and horizontal loading were established. Further, the detailed calculating formulae and determination method about initial cable pretension were given. They are useful for preliminary design and qualitative analysis of mega steel frame and cable bracing structure.
Estimation Theory on Initial Prestress of Cables in Mega Steel Frame and Cable Bracing Structure
How to estimate initial cable pretension is one of key problems for mega steel frame and cable bracing structure. In this structure, pre-stressed cables work as components of lateral resistance and elastic supports for mega-beams. Based on these two roles, two principles about determination of initial pretension in them were presented. One is that the residual tension will be near to zero in the most unfavorable condition. The other is that the mega-beam deformation, not showing inverted-arch shape, meets Chinese code requirements in the normal service state. According to these two rules and superposition principle of structural deformation, the relationship between the mega-beam deformation and the cable force under vertical and horizontal loading were established. Further, the detailed calculating formulae and determination method about initial cable pretension were given. They are useful for preliminary design and qualitative analysis of mega steel frame and cable bracing structure.
Estimation Theory on Initial Prestress of Cables in Mega Steel Frame and Cable Bracing Structure
Tang, Bai-Jian (Autor:in) / Wang, Fei (Autor:in) / Gu, Sheng (Autor:in)
2013
5 Seiten
Aufsatz (Konferenz)
Englisch
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