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Overview and purpose
This test problem demonstrates the formulation of staged-construction analysis, as applied using various modeling procedures. Time-dependent behavior is considered, new joints are placed within deformed and undeformed locations, and a description of how users may interpret output is included.
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A sketch of the construction sequence and associated loading is presented in Figure 1:
Figure 1 - Column model and sequence
A high resolution image of Figure 1 is presented in the attached PDF .
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Analysis generates the deflection results which follow:
Figure 2 - Deflection summary
Figure 3 - Graph of final joint deflections
A full resolution image of Figure 2 is attached in the Excel spreadsheet .
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- Staged construction consists of the following stages:
- To create the ghost structure, the entire structure is first added.
- Frame property modifiers equal to 0.0001 are applied to the entire structure to make it very flexible.
- Stories are added one-by-one in subsequent stages by first assigning unit property modifiers to the story that is being erected. This effectively assigns the actual stiffness and activates the member before load is then applied.
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- Staged construction in buildings test problem
Attachments
- SAP2000 V12V18.0.2 1 model (zipped SDB file)
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