Architektura

City Hall Administration Building, District of Bratislava - Dúbravka, SK

Matěj Gomola
VSB - Technical university of Ostrava
Česká Republika

Idea projektu

The subject of the thesis is to design the administrative building of the Municipal District of Bratislava-Dúbravka or more precisely City Hall of Bratislava-Dúbravka.
The building is to be part of a complex of multifunctional buildings – District Court Bratislava IV, post office etc., which would complement and ameliorate the current heterogeneous “Great Center” as it is called. The site is delimited by the streets Saratovská and Trhová in the east-west direction and by the buildings of the House of Culture Dúbravka and of the multifunctional building with the BILLA supermarket in the north-south direction.
The thesis will also deal with public space and its connection to the platforms in front of the above-mentioned cultural centre and BILLA supermarket, as well as the connection to the western part of the centre, where a new urban structure of multifunctional buildings will be designed.

Popis projektu

Characteristics of the territory
The solved area is located in the Slovak city of Bratislava, Dúbravka district. Dúbravka can on the northwest side of the foothills of the Devínská mare. This is about IV. Bratislava city district, which is one of the oldest. Today, the city district consists of the so-called small and large center and the Bory mall shopping center, which is closely adjacent to the holiday district of the city called Devínská Nová Ves. Dúbravka is characterized by your panel construction from the 1970s. Today, the solved area does not have the character of a so-called large center, and in my design a quality public space complemented by other buildings is approaching.
Conceptual plan
Concepts of territorial work with the addition of functional functions within the location and in the context of the location of the place. The whole area is very busy and the main transport artery connecting Centrum-Dúbravka-Devín. The area is determined by three roads and these are Pod Záhradami, Saratovská and Trhova. The whole area is divided into two units of separate Saratovská roads, which is two-lane in the recipients. In your conceptual plan, you are expected to connect these units with an extra-level subway, which visits public spaces in front of the town hall and libraries. In this work I describe the compositional principles of the design of the mass of given objects and public space.

Architectural solution - City Hall
The town hall building consists of thirteen floors above ground and two underground floors. The town hall is conceived from the cylindrical mass of an ellipse, which is divided in half in its center. These halves move away from each other to create dynamism, authenticity and character. A core is embedded between the two halves of the ellipse, which forms the verticality of the entire structure. A cubic mass with the main entrances to the building is connected to the mass of a half ellipse from the north-eastern part. I designed two main entrances to the building. One of the front of the cultural house and the other of the passage space.
At the entrance to the entrance hall, which is connected over two floors, the visitor is forced to look at the dominant white spiral staircase, which creates dominance, elegance and purity. This staircase connects the first underground floor of the restaurant, the entrance hall, the ceremony room and the conference floor. The staircase is also visually open to the space in front of the amphitheater and creates an "artifact" of high cubic mass.
From the entrance hall you enter the seat of the town hall with a reception for administration and further through the stairs to the cafe, which is located on the second floor. The café also creates a business area and combines public relations with town hall and administrative staff. The entrance hall partially connects the third, fourth and fifth floors in the area of ​​the white spiral staircase. On the third floor there is a ceremonial hall, which is multi-purpose and also serves for council meetings.
The administration of the municipal office is located on the top floors and is based on the principle of functional importance. Ie. the top floor houses the mayor, deputy mayor, mayor and secretariat, and the lower floors are the departments of the municipal administration.

The dominant element of the interior are the so-called cabinet partitions. They create a pleasant warm interior and at the same time have a practical function for storing the necessary materials. Above these partitions are designed skylights for the supply of daylight to the corridor area.
I tried to keep the color of the whole building in the greatest possible purity of white color with elements of light oak wood decor with a slight contrast of aluminum gray facade and interior anthracite color of window and door openings.
The facade is designed as all-glass from the Schüco company. The facade is designed as a column-partition with mezzanine anchoring. The entire facade is designed as fix panels without the possibility of opening due to the proposed construction technology. The facade has a light gray anodized finish. Some parts of the flat roofs of the town hall are covered with greenery.
The core mass and the cubic mass are made of a sandwich construction with a white cladding of fiber-cement boards, which characterize the building and express purity and grandeur.

Architectural solution - District Court BA IV.
The district court building consists of two floors above ground and two underground floors. The substance of the district court is conceived in connection with the cubature of the cultural house and observes the horizontal plane with it. The floor plan is a rectangle. The main entrance is located on the southwestern part of the covered front entrance passage. The second entrance is on the northeast side and serves as an entrance for employees.
The building consists on the first floor of the entrance hall, which is also connected over two floors, of the court rooms and a large meeting room. The court administration is located on the second above-ground and first underground floor.
The whole building works with vistas and the supply of daylight to the interior of the corridors. The concept is also based on the supply of daylight to courtrooms through skylights. These skylights have the function of illuminating judges in courtrooms and with this element emphasizing the power to decide and judge. The public enters the courtrooms through a gallery that is open towards the park.
As in the town hall building, so-called cupboards are used in the administrative premises. The central areas of the building are designed for communication and normal operation of offices.
The facade is made as a sandwich with a white facade cladding of fiber-cement boards. An important façade element is the mirror foil on the north-west side. This foil has the function of reflecting the trees of the park in the exterior and also, from a safety point of view, to prevent the public from seeing the administration premises on the first underground floor. All windows and facades in the first underground floor are designed from safety bulletproof glass.
The flat roof is designed for the most part as green with an opening to the park and the amphitheater. On the northeastern part of the flat roof, I designed photovoltaic panels that will not be visible from the ground floor and the square.

Technické informace


Constructional solutions
The supporting structure of the town hall consists of a reinforced concrete skeleton with a reinforced concrete reinforcing core. The building is available on the motherboard. Establishment can be done on a hydrogeological survey, which is focused on the nature of the work of poor performance. After this survey, it would be re-evaluated by the cause. the axial distance of the supporting columns is located. The largest distance of the column at the ellipse is 8.75 m available. The cubic mass is also made of a reinforced concrete skeleton. The district court building is also designed from a reinforced concrete skeleton with a reinforcing core. The whole building is prepared in a waterproofing reinforced concrete tub.
The construction solution of the facades is made of columns and partitions, which are mounted along the floor height and anchored to the ceiling slabs of the facades.
The visible width of the columns and partitions is 60 mm

Technology
The technologies of both buildings are designed on the lowest floor of the 2nd floor. Each building is subdivided and has its own HVAC background. There are designed rooms for air conditioning, security systems, fire systems, waste, transformer stations, HV / LV and rooms with tanks for hot water heating and tanks for domestic water. The water from the square will be drained into the tanks and used back for the purpose of flushing toilets or irrigating the park, which is based on the ceiling slab of the garage. The tanks will have an overflow by draining water into the public sewer.
The glass facade will be equipped with photovoltaic cells in the mezzanine window strips. The building will be energy self-sufficient on sunny days. On the flat roof of the district court, I designed a photovoltaic power plant, which will also support the energy and operation of the entire building.
Heating and air conditioning is solved using DAIKIN heat exchangers, which will be located on the roof of the town hall and the district court. Distribution for cooling and heating will be located in the ceilings of the corridor and will be granted. At the same time, there must be separate distributions for forced ventilation and extraction of harmful gases from the interior of the building.
The facade will be complemented by an integrated CTB shield and will be automated and connected to recuperation sensors.
Both buildings will be connected to the engineering networks from Trhová Street.

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