Nový Magistrát města Brna

Idea projektu

The design of the municipal building is based on the union and merging of all the scattered buildings of the current municipality in Brno into one single building. The centralized building will simplify the flow of equipment for the people and the discussions between the departments. The new city hall will also function as an entrance to the new district and an entrance to the boulevard. The entire street network will be transformed, green spaces, blue-green infrastructure, and new technical infrastructure will be created. A new municipality for 1,900 employees will be built, embodying the principles of openness, accessibility and friendliness and meeting the requirements of economy, ecology and safety. The municipality will contribute to the development of the new district and support the vision of Brno as a modern European city of the 21st century. As there is no newly built office in the whole country and these are only renovations, it can break negative perceptions and stereotypes of officials with its appealing visuals and welcoming shape. The site is linked to the upcoming New South Trnitá project, which will create a new urban district that will offer homes, jobs and entertainment to more than 15,000 people.

Popis projektu

The site in question is connected to the upcoming Nová jižní čtvrť Trnitá project, which will create a new urban district offering homes, jobs, and entertainment to more than 15,000 people. The new district will feature a new main railway station connected to the historic center by a wide boulevard. The boulevard plays an important role in the area in question, as it will be a significant public space with wide sidewalks, bicycle lanes, new tram lines, and plenty of greenery, connected to the city's new street network. The project is expected to improve transportation and revitalize the Svratka River embankment. There are also plans to uncover the Vienna Viaduct. Right next to the area in question, there are plans to demolish the Dornych Shopping Center and build the Nový Dornych complex, which will include apartments, offices, shops, and restaurants. The area in question shares a block with the proposed construction of a new elementary school with a kindergarten and a residential block. The design of the city hall building is based on the unification and merging of all the scattered buildings of the current city hall in Brno into one common building. The centralized building will facilitate the smooth processing of matters for people and the negotiations between departments. The new city hall will also serve as the entrance to the new district and the boulevard. The entire street network, greenery, and blue-green infrastructure will be transformed, and new technical infrastructure will be created. The new city hall building for 1,900 employees will embody the principles of openness, accessibility, and responsiveness and will meet economic, ecological, and safety requirements. The city hall will contribute to the development of the new district and support the vision of Brno as a modern European city of the 21st century. Since there are no newly built offices in the entire Czech Republic and only renovations, its attractive appearance and welcoming shape can break the negative perception and stereotypical view of civil servants. The design of the municipal building is based on the urban conditions of the site. The height level follows the surrounding buildings, the outer edges line the surrounding street lines and form solid straight edges. What distinguishes the proposed building from its surroundings is the accent of the open corner towards the bus stops, which creates a funnel flowing into the square. From the square, it is clear that the towering structure at the beginning of the boulevard gradually slopes down towards the square, towards the people in the public space. At the corners of the boulevard, the building is taller, creating a clear corner landmark, where the most important parts of the city hall are located – the city administration with a view of the iconic Petrov. The descending floors create roof terraces with greenery and wooden terraces designed for city hall events and employees. They create a place for relaxation and for meetings outside the office space. The edges of the inner courtyard are softened, bending and breaking up the solid, towering edges. The mass facing the square is playful and dynamic, just like its forecourt. However, the architecture itself seeks to emphasise the importance of this public institution. The outer façade consists of vertical slats of bent sheet metal protruding from the façade. At the same time, they shade the interior space and have rails on the side for outdoor blinds made of HDPE fabric. The façade thus changes according to the needs of its users. The façade consists of one large glass surface, which aims to bring as much light as possible into the five-wing interior, including the corridors, meeting rooms and common areas. An important element of the design is the triangular structure located in the centre of the square, which divides the space into three different forecourts in front of the residential building with a restaurant on the ground floor, offering outdoor seating in the shade of trees; the forecourt in front of the primary school and nursery school with an integrated playful water feature lining the tree-lined avenue; and finally, the forecourt in front of the town hall itself, to which it leans, its roof offering seating and creating a meeting place for users of the town hall and the surrounding square. The staircase can also be used for public events such as town hall and city council announcements, or for light-hearted programmes such as screenings, concerts and more. The municipal building can be divided into two parts in terms of its operation. The first, public part with an atrium forms a perimeter of counters where the main negotiations between the city and the people take place, constituting the busiest and liveliest part of the building. This is followed by more private staff areas with facilities to ensure the smooth processing of administrative requirements. There are photocopiers, storage rooms and quieter office spaces for work away from the counters. The ground floor of the municipal office is designed as an open space for people to find their way around and provides access to the atrium through several functional areas. At the corners of the building are exhibition halls with city projects and presentations of the city's history. In the centre of the street profile on the boulevard side is a café bistro serving both the public and employees. Public movement in the atrium is facilitated by three spiral staircases with glass lifts in their mirrored section. In addition to the public areas, employees have access to four separate side entrances connected to stairwells with lifts, which connect the building vertically and serve as protected escape routes. Through these, employees have private access to their workplaces on the floors, which are designed as five wings. The perimeter of the building consists of office space, and in the centre there are shared functional units such as meeting rooms, day rooms, cubicles for private conversations, storage spaces and archives. This part houses office operations with moderate public traffic, to which visitors are admitted via waiting areas connected to the atrium, where employees pick them up and then move them to shared meeting rooms or their offices. The second part of the municipal building is functionally separated by an open corner. The southern part of the municipal office building houses more private office spaces with occasional public traffic. The operation is similar to the above-mentioned part of the building, with a small office wing with corner offices for department heads and city officials. The top 11th floor is used by city officials and houses the offices of the mayor of Brno with a meeting room. The ground floor of the southern part responds to its surroundings and houses public spaces. From Fuchsova Street, there is an entrance to a yoga and spinning centre, and on the side facing the square, there is a pastry shop/ice cream parlour responding to the location of the school and water feature. The city hall is a type of building with a changing functional and capacity solution. The offices are therefore adapted for variable division, which offers the creation of separate office cells, offices for 2 or 4 people, or the entire wing can be designed as an open-space office for any number of employees. It depends on the number of employees in a given department. This corresponds to the division of the façade in dimensions of 2.7 m, based on the width of offices for 1 and 2 people, which can then be multiplied or divided in various ways. In the northern part of the building, on the 8th floor, there is a staff canteen with a view of Petrov and the square, providing constant visual contact with the lively city centre. The canteen is connected to a roof terrace, offering contact with greenery and the outdoor environment. All four vertical cores are connected to two underground floors, which are primarily used for parking and also as technical facilities for the municipal office in the form of storage spaces, archives and rooms for the placement of technology and technical equipment, a backup energy storage facility for the building, HVAC machine rooms, a fire water storage tank and a technical room for the photovoltaic power plant.

Technické informace

The structural system consists of prefabricated assembled ceiling panels (Cree wood-composite panels), made from a combination of wooden beams and reinforced concrete slabs attached to them. The wooden beams are placed on the sides of the panel, and a double glued beam method is used in the centre. Vertical forces are transferred through double wooden columns measuring 240/240 around the perimeter of the façade via a reinforced concrete beam connected to the prefabricated ceiling slab. The internal load-bearing structure consists of reinforced concrete monolithic cores and reinforced concrete prefabricated beams that reinforce the structure in both directions. The more complex connections of the corner parts of the building will be carried out by a specialist in construction. If necessary, the corner connections will be made from a reinforced concrete skeleton, to which a hybrid structure will then be connected. The cantilevered part above the open corner will be statically supported by a system of reinforced concrete trusses hidden behind the façade. The deflection forces will be transferred to the solid part of the city hall and reinforced by protruding reinforced concrete ceiling slabs. The structure has a fire resistance of 120 minutes. It is a certified product of an Austrian company that focuses on sustainable construction and the use of the optimal amount of wood so that the overall structure makes sense from a structural, economic and environmental point of view. This style of skeleton construction allows for a narrower, more subtle use of elements. The floor construction is no more than 800 mm thick, which is almost half the thickness of a fully wooden construction. Thanks to this factor, it is possible to utilise greater headroom and add to the feeling of generous space in offices and shared meeting and relaxation rooms. The structure supports modular storage and allows additional spaces to be added or removed as needed. In the case of the city hall, the advantage is the modular variation, which answers the question of whether it is necessary to build such a large and comprehensive city hall in the age of digitalisation. In the future, it will therefore be possible to configure the city hall to suit its needs. The underground floors are structurally designed with monolithic reinforced concrete walls and a system of columns and beams with an axial spacing of 8.1 x 8.1 m. The foundation structure consists of a foundation slab made of hydraulic concrete supported by deep piles with a diameter of 1000 and 800 mm. The roof structure above the lowered parts is designed as an extensive green walkable roof with a composition placed on a wooden concrete ceiling structure supplemented with thermal insulation and waterproofing layers. Other roof structures are designed without public access, only for operational use with the placement of photovoltaic panels and ventilation systems. The thermal insulation with waterproofing layers is placed on wood-concrete ceiling panels, and the outer HI is loaded with protective river gravel, supplemented by concrete tile walkways. In terms of materials, the building is based on concepts that reflect the function of the municipal office and its conceptual design of maximum openness and friendliness, a representative character that should be combined with reliability, helpfulness, public service, sustainability and modularity. These concepts are reflected in the use of natural materials such as wood, stone, glass, and greenery in the form of green walls and outdoor terrace gardens. The materials are intended to provide both employees and the public with a pleasant environment for work and meetings.