A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a symmetric force finding method of a prestressed cable rod structure, and belongs to the field of the design of modern space structures. The method comprises the steps that 1, a force equilibrium matrix is set up, and symmetric subspaces corresponding to an external load vector and an internal force vector are set up respectively; 2, a first partition submatrix of the symmetric type equilibrium matrix is calculated; 3, a holohedric self-stress mode is solved; 4, whether the holohedric self-stress mode is an untrivial solution or not is judged, and if the holohedric self-stress mode is a zero solution, a geometric structure is redesigned; 5, an initial prestress combination coefficient is determined; 6, whether the set-up prestressed cable rod structure meets the stability conditions or not is judged, if the structure is stable, a symmetric force finding result is output, the symmetric force finding process is finished, and otherwise, the last step is executed again to seek an initial prestress distribution scheme again.
The invention discloses a symmetric force finding method of a prestressed cable rod structure, and belongs to the field of the design of modern space structures. The method comprises the steps that 1, a force equilibrium matrix is set up, and symmetric subspaces corresponding to an external load vector and an internal force vector are set up respectively; 2, a first partition submatrix of the symmetric type equilibrium matrix is calculated; 3, a holohedric self-stress mode is solved; 4, whether the holohedric self-stress mode is an untrivial solution or not is judged, and if the holohedric self-stress mode is a zero solution, a geometric structure is redesigned; 5, an initial prestress combination coefficient is determined; 6, whether the set-up prestressed cable rod structure meets the stability conditions or not is judged, if the structure is stable, a symmetric force finding result is output, the symmetric force finding process is finished, and otherwise, the last step is executed again to seek an initial prestress distribution scheme again.
Symmetric force finding method of prestressed cable rod structure
2015-12-02
Patent
Electronic Resource
English
IPC:
E04B
Allgemeine Baukonstruktionen
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GENERAL BUILDING CONSTRUCTIONS
Research on the Method for Force Finding of Prestressed Cable Net
| British Library Conference Proceedings | 2012
Arrangement of Cable on Prestressed Cable-Beam Structure System
| Tema Archive | 2012