Equilibrium Equation for Spatial Frame Structure Constructed in Stages and Its Applications
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Bibliographic Details
| Author(s): |
Shunquan Qin
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Long Span Bridges and Roofs - Development, Design and Implementation, Kolkata, India, 24-27 September 2013 | ||||
| Published in: | IABSE Symposium Kolkata 2013 | ||||
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| Page(s): | 1-8 | ||||
| Total no. of pages: | 8 | ||||
| Year: | 2013 | ||||
| DOI: | 10.2749/222137813808627497 | ||||
| Abstract: |
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. |
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| Keywords: |
construction control One-time built structure Structure constructed in stages Unstressed state Spatial frame structure
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