TEC Infrastructure participated in the competition with the project for Užvingis Island Bridge, which is going to create two traffic flows – of pedestrians and cyclists. The terraces in the middle of the bridge will offer views of the Nėris valley – the bridge will become a new area for transport and recreation.
Marija Stanė, the BIM Coordinator of TEC Infrastructure, says that this project is extraordinary: it was important to design harmonised, integrated solutions for the transport communications and bridge structures that would be favourable to the local population, as well as to plan the building technology for the implementation of the solutions. “Using BIM tools, the project solutions were optimised to the maximum extent possible – the optimal locations for the bridge and walkways were selected with the lowest possible impact on the environment,” says M. Stanė.
The architectural and structural solutions of the bridge are adapted to Vingis Park and the surrounding areas, so the new bridge will create more public spaces for Vilnius residents and visitors of the city. During the preparation of the design the strict environmental requirements and the navigation capacity of the Neris River were taken into account: the axis of the bridge in Vingis Park is built in the bend of Čiurlionis Street, away from the existing arroyo, thus preserving the natural landscape of the arroyo.
According to M. Stanė, with the help of the BIM tools the design and information communication processes were organised more efficiently and the likelihood of technical errors was reduced. “BIM tools have made it much easier to update constantly changing design solutions,” shares the BIM Coordinator.
A BIM Implementation Plan (BEP) has been developed for the design solutions, detailing the strategy and processes for achieving the BIM objectives. It is easy to spot inaccuracies in a BIM environment in time; therefore, it was possible to avoid reworks during the implementation of the project. Using CDE (Trimble Connect) the BIM Coordinator sees the clashes in time, communicates the errors to the drafters of the parts of the project, and they are corrected in time.
A 3D digital model of the existing surface was also created using BIM. It can be viewed from all angles to see how the project will look in its current environment. For this purpose, design axes, longitudinal profiles, models of the bridge, the island and the walkways were created. The quantities of the required elements were generated by creating project bills of quantities from the BIM model. Pedestrian and cycle paths as well as tree protection walls were designed taking into account the protected green areas.
TEC Industry presented the project for aircraft painting hangar at Kaunas Airport at the competition. The garage building consists of two large hangar spaces of about 1,700 m2 for painting of “Airbus A320” and “Boeing B737” types of aircraft. Adjacent to these facilities are blocks of technical rooms and a two-storey administrative part.
According to Monika Grimailaitė, the BIM Coordinator of TEC Industry, “MAAS Aviation” is the third largest provider of such services in the world, and this hangar is the first specialised facility of its kind in Lithuania as well as one of the largest in Europe. Some challenges were faced during the project: the special location of the building and the main technological processes in the building posed specific challenges for practically all parts of the project and the construction process.
According to M. Grimailaitė, BIM methodology was used from the design proposal stage. “The Common Data Environment (CDE) used for models of almost all parts of the project and the timely exchange of information between the parts of the project has helped to overcome the challenges of the design and construction process and to complete the tasks of a unique technological process,” shares the BIM Coordinator of TEC.
A common data environment – Trimble Connect – was used to share information between different disciplines throughout the design and construction process. This tool allowed the entire project team to see the most up-to-date versions of the models in one place, making project communication extremely seamless.
The technical supervision and the Contractors had access to the BIM models during the construction, and were able to assign them to the appropriate designers via the common data environment Trimble Connect in case there were any questions on site. “The assignment was linked to a specific element of the BIM model, a location or a photo from the construction site,” says M. Grimailaitė.