user277418
Structural
- Jul 11, 2017
- 86
Hi
It is common practice to analyse/design continuous slabs separately from building model in FEM. It is clear and easy when gravity load-bearing system (columns and walls) is the same on all stories or changes relatively uniform along height of building. But what if location of bearing elements differ each couple of stories. For example 3 stories the same pattern of columns and walls. Next 3 stories some columns from above become supported by walls/deep beams and vice versa. Then the pattern changes again after 2 stories etc. Have met such buildings quite often. For correct analysis of continuous slabs stiffness of supports matters. Therefore, sometimes, it leads to a necessity to design/analysis almost every slab in the building even they look the same.
How do you deal with that? Are there any simplification methods/rules of thumb for such cases?
How such software like SAFE deals with it?
Best regards
It is common practice to analyse/design continuous slabs separately from building model in FEM. It is clear and easy when gravity load-bearing system (columns and walls) is the same on all stories or changes relatively uniform along height of building. But what if location of bearing elements differ each couple of stories. For example 3 stories the same pattern of columns and walls. Next 3 stories some columns from above become supported by walls/deep beams and vice versa. Then the pattern changes again after 2 stories etc. Have met such buildings quite often. For correct analysis of continuous slabs stiffness of supports matters. Therefore, sometimes, it leads to a necessity to design/analysis almost every slab in the building even they look the same.
How do you deal with that? Are there any simplification methods/rules of thumb for such cases?
How such software like SAFE deals with it?
Best regards