|
|
 |
|
|
High-rise Based on Substructure Technique
The following example shows a 17-floor high-rise, which was calculated as an entire system for a dynamic analysis. For this reason the floor slabs were discretized relatively roughly. A much finer division for a statistical analysis would have been possible without an appreciable increase in the calculation time, as the number of global nodes would not have increased. The substructural division was done by assigning each floor slab or vertical element of a floor to one substructure. The numbering is illustrated in the figure.
Information Log
The following information log from the substructurization shows that, except for substructure 25, the information can be condensed into small work units. The data for the entire system clearly shows the advantage of substructuring. The required memory for the calculation of a load case is 130 MB in this application.
MAKEUP OF THE ENTIRE SYSTEM
| Nodes: |
6597 |
| Elements: |
7019 |
| Max. bandwidth: |
2184 |
| Number of unknowns: |
39,582 |
| Stiffness matrix: |
429.5 MB |
MAKEUP OF THE SUBSTRUCTURES
Sub-
structure |
local
nodes |
global
nodes |
Ele-
ments |
Band-
width |
Stiffness
matrix |
| 10 |
115 |
50 |
146 |
84 |
1.7 MB |
| 15 |
198 |
100 |
243 |
150 |
3.7 MB |
| 20 |
115 |
50 |
146 |
84 |
1.7 MB |
| 25 |
561 |
100 |
617 |
300 |
13.0 MB |
| 30 |
115 |
50 |
146 |
84 |
1.7 MB |
| 35 |
198 |
100 |
243 |
150 |
4.0 MB |
| 40 |
115 |
50 |
146 |
84 |
1.7 MB |
| 45 |
198 |
100 |
243 |
150 |
3.7 MB |
| 50 |
115 |
50 |
146 |
84 |
1.7 MB |
| 55 |
198 |
100 |
243 |
150 |
3.7 MB |
| 60 |
115 |
50 |
146 |
84 |
1.7 MB |
| 65 |
198 |
100 |
243 |
150 |
3.7 MB |
| 70 |
115 |
50 |
146 |
84 |
1.7 MB |
| 75 |
198 |
100 |
243 |
150 |
3.7 MB |
| 80 |
115 |
50 |
146 |
84 |
1.7 MB |
| 85 |
198 |
100 |
243 |
150 |
3.7 MB |
| 90 |
115 |
50 |
146 |
84 |
1.7 MB |
| 95 |
198 |
100 |
243 |
150 |
3.7 MB |
| 100 |
115 |
50 |
146 |
84 |
1.7 MB |
| 105 |
198 |
100 |
243 |
150 |
3.7 MB |
| 110 |
115 |
50 |
146 |
84 |
1.7 MB |
| 115 |
198 |
100 |
243 |
150 |
3.7 MB |
| 120 |
115 |
50 |
146 |
84 |
1.7 MB |
| 125 |
198 |
100 |
243 |
150 |
3.7 MB |
| 130 |
115 |
50 |
146 |
84 |
1.7 MB |
| 135 |
198 |
100 |
243 |
150 |
3.7 MB |
| 140 |
115 |
50 |
146 |
84 |
1.7 MB |
| 145 |
198 |
100 |
243 |
150 |
3.7 MB |
| 150 |
115 |
50 |
146 |
84 |
1.7 MB |
| 155 |
198 |
100 |
243 |
150 |
3.7 MB |
| 160 |
115 |
50 |
146 |
84 |
1.7 MB |
| 165 |
198 |
82 |
234 |
150 |
3.5 MB |
| 170 |
73 |
41 |
98 |
60 |
936.4 KB |
| 175 |
198 |
82 |
234 |
150 |
3.5 MB |
| 180 |
73 |
41 |
98 |
60 |
936.4 KB |
|
