258
X4
Category 4: Special Projects
Introduction to the project
This small composite structure of steel and concrete is
part of a larger concept that includes two tennis courts
set amid a beautiful landscape full of trees and plants.
The tennis courts were designed according to
international rules and specifications.
The building will accommodate a small café and the
locker room for the tennis players. It was designed with
the provision for a roof garden in the future.
Description of the project
The main structure was designed with steel members
and concrete slabs.
The composite beam module was used in order to
design the secondary beams to reduce the weight of
these members.
Approach
The distances between the columns of each frame
were about 5.80 m. The distances between the frames
were set at 3.90 m. The dimensions of the building were
10.25 m x 5.80 m and the height was approximately
3.50 m. We used HEA260 for the columns, IPE300 for
the main beams, IPE220 and IPE100 for the secondary
beams and an SHS cross-section for the roof bracing.
To simulate the diaphragm of the slab, HEA1000 for the
roof bracing was used, without weight and mass, using
property modifiers.
The use of Scia Engineer in this project
We designed the 3D model, using the Line Grid option.
The next step was to make all the load cases, load
groups and load combinations.
Load groups:
1. G : permanent
2. S : snow
3. W : wind
4. E : seismic
5. Q : variable
6. T : temperature
Load cases:
1. LC1 : self-weight
2. LC2 : permanent
3. LC3 : variable
4. LC4 : snow
5. LC5 : seismic X
6. LC6 : seismic Y
7. LC7 : thermal +
8. LC8 : thermal -
9. LC9 - LC24 : 3D Wind Load Cases
Load combinations:
1. EN-ULS
2. EN-SLS
3. EN-seismic X
4. EN-seismic Y
For the wind loads we used the 3D wind option to
calculate with accuracy all the zones according to
EN1991-1-4.
For the permanent and the snow loads we used line
forces on beams.
We used thermal loads (+/-20 degrees) for columns and
the round beams. These members will be outside the
building.
The seismic design followed EN1998.
After the linear and the modal analysis, we conducted
section and unity checks for all the members. We also
proceeded to a serviceability check for the main beams.
Software: Scia Engineer
Sports Club with Two Tennis Courts - Crete, Greece
