| One-way spanning slab item |
Tekla Structural Designer 1-way decomposes panel loads applied to the slab directly on to those supporting members/two-way spanning slab edges before performing 3D analysis.
The rotation angle of the slab item determines the decomposition direction. Note: Any openings in 1 way slabs are ignored and thus have no impact on load decomposition.
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| Roof panel |
Tekla Structural Designer 1-way decomposes panel loads directly on to supporting members/two-way spanning slab edges before performing 3D analysis.
The rotation angle of the roof panel determines the decomposition direction.
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| Two-way spanning slab item |
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At those levels where the Mesh 2-way Slabs in 3D Analysis option is selected, load decomposition is not required.
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At other levels, any loads applied to two-way slabs are automatically 2-way decomposed back to supporting members during the 3D pre-analysis stage, immediately prior to the 3D analysis stage.
Note: Where openings have been defined, any portion of a panel load that lies within the opening will not be decomposed.
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| Roof panel overlapping a one-way spanning slab item |
Tekla Structural Designer 1-way decomposes panel loads applied to the slab directly on to supporting members/two-way spanning slab edges before performing 3D analysis.
The rotation angle of the slab item (and not the roof panel) determines the decomposition direction.
Note: Any openings in 1 way slabs are ignored and thus have no impact on load decomposition.
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| Roof panel overlapping a two-way spanning slab item |
- If there are no openings in the slab, decomposition is as per Two-way spanning slab item type described above.
- Where openings exist, any panel load applied inside the opening is first one-way decomposed in the direction defined by the rotation angle of the roof panel on to the two-way slab at the edge of the opening. It is then further decomposed back to supporting members as per Two-way spanning slab item type described above.
Note: This does not apply when the panel load is an area load that has been applied to the slab item (as opposed to the roof panel), or a level load, or a slab load. In each of these instances the load will automatically be boxed out around the opening.
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