The grandstands and administrative premises of Alytus stadium

Project name: 
The grandstands and administrative premises of Alytus stadium
Project category: 
Student projects
Project location: 

I am fourth year student of Vilnius Gediminas Technical University in Lithuania, training for a BSc degree. In order to be more original I have chosen to do my final project using Tekla Structures software while cooperating with "Concretus Designers" company. An interesting project is located in southern Lithuania - Alytus city.

Size: 2nd floor above the ground with grandstands.
Height × Width × Length – 11,6 m × 17 m × 106 m
Area of admistrative building- 1135,0 square meter
Area of grandstands – 1060,0 square meter
Weight of steel : 183,98 ton
Volume of concrete : 461,85 cubic meters

Building uses : administrative building for football matches and other sport events
Structure type : Complex structure (cast-in-place concrete, precast concrete, steel,)
Foundation type : Bearing foundation (individual footing)

The type and strength of the structure materials:
Precast concrete : fck =40MPa;
Cast-in-place concrete : fck =25MPa;
Steel grade: S355;
Roof profiled sheets: S250 GD;
Bolt strength class: 8.8;
Reinforcement steel grade: S500.

Sections used:
Hollow sections: CFRHS150x150x8, CFRHS140x140x6, CFRHS100x100x6, CFRHS100x100x5.
Open sections: HEA 400, HEA 200, HEA 160, IPE 330, IPE 300, IPE 220, UPE 200.
Precast elements: PKE 27 (HC slabs), RCL140x390-1040x140 (grandstands beams).
ASDO tie rod system: ASDO 350-S M27_HDG

Experience and thoughts after using Tekla Structures

The main goal of my final work was to suggest an alternative solution for the frame structures of the Alytus stadium’s grandstands and administrative premises in order to change energy efficiency class from B to A and to change precast concrete elements (columns, beams and grandstands’ main beams) to steel. This led me to a complex task of maintaining same architecture in administrative premises and creating, optimizing solutions for the steel frame. Steel structures have been designed with SOFiSTiK software and then controlled manually. Due to unusual connections in the building, some of them were modeled manually, nevertheless, I have used ASDO components for vertical ties and standard Tekla Structures components which helped me to speed up the modeling process.

All precast concrete connections were changed to steel ones, thanks to Tekla tools I had perfect chance to make original steel joints what led to enriched architectural view. Tekla is a great software as it has Tekla BIMsight which helped me discuss my ideas with UAB “Concretus Designers” engineers and solve problems which could occur during the design process. It is easy: you just need to export IFC and load it on Tekla BIMsight and then you have a lot of ways of presenting your project, marking vital parts, changing visualization and writing notes on snapshots. These possibilities helped me. That is my first attempt using BIM software and I can say that it is a huge improvement which saves a lot of hours comparing to my most used AutoCAD software.