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Equilibrium Equation for Spatial Frame Structure Constructed in Stages and Its Applications

 Equilibrium Equation for Spatial Frame Structure Constructed in Stages and Its Applications
Auteur(s):
Présenté pendant IABSE Symposium: Long Span Bridges and Roofs - Development, Design and Implementation, Kolkata, India, 24-27 September 2013, publié dans , pp. 1-8
DOI: 10.2749/222137813808627497
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For a spatial frame structure constructed in stages, the unstressed state of an element is defined as its initial geometric shape with zero internal stress. Using energy method, a new equilibrium e...
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Détails bibliographiques

Auteur(s):
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Symposium: Long Span Bridges and Roofs - Development, Design and Implementation, Kolkata, India, 24-27 September 2013
Publié dans:
Page(s): 1-8 Nombre total de pages (du PDF): 8
Page(s): 1-8
Nombre total de pages (du PDF): 8
Année: 2013
DOI: 10.2749/222137813808627497
Abstrait:

For a spatial frame structure constructed in stages, the unstressed state of an element is defined as its initial geometric shape with zero internal stress. Using energy method, a new equilibrium equation for spatial frame structure constructed in stages is established. In this paper, a simple spatial truss is used as an example to illustrate the application of this new equilibrium equation.

Calculation demonstrates that the final member forces and structural displacements can be uniquely determined for a structure constructed in stages with any given structure type, loading and boundary conditions and without knowing the actual construction processes and methods, as long as the unstressed state of all structure modules or components remain unchanged. And the final internal forces and structural displacements are irrelevant to construction processes.