CreedRD
Structural
- Jun 11, 2024
- 2
Hello All. Its my first time posting in this forum so i apologise if this subject has been talked about before.
When we have very short structures, 1 storey, masonry wall structure with concrete slab (very rigid structure), the periods of the modes are often way lower than 0.20s.
When this happens structural softwares wont show any displacements or ver very low displacement when performing a seismic modal analysis.
Is there any literatura that talks specifically about this kind of structure? Sometimes this rigid structures modal analysis result in 15 even 20 modes to achieve 90% of modal mass participation deforming only small parts of the walls in each mode. Have any of you seen this in any of your analysis? (Sorry for the writing...english is not my main language)
When we have very short structures, 1 storey, masonry wall structure with concrete slab (very rigid structure), the periods of the modes are often way lower than 0.20s.
When this happens structural softwares wont show any displacements or ver very low displacement when performing a seismic modal analysis.
Is there any literatura that talks specifically about this kind of structure? Sometimes this rigid structures modal analysis result in 15 even 20 modes to achieve 90% of modal mass participation deforming only small parts of the walls in each mode. Have any of you seen this in any of your analysis? (Sorry for the writing...english is not my main language)