Area: 2100
"Toca do Urso" is a space that simulates a bear cave and is used to receive visitors. The project creates a pleasant microclimate in areas of extreme heat and poor ventilation, without enclosing the environment and not relying on air conditioning.
The project tries to take advantage of what already exists around, such as the canopy of two large trees that shade the area for most of the day.
The large rotunda is buried in 1At 5 meters, the land removed from the ground is relocated, creating a 3-meter slope around the ** hall, creating a large thermal inertia barrier like a cave.
A circular wing cover with a skylight optimizes natural circulation and captures wind in any direction, such as the wind collector commonly found in Islamic architecture.
All ventilation and air conditioning are operated by a grille on the floor.
These grilles connect these channels and allow air to circulate, naturally lowering the temperature. The sum of these measures helps to reduce the internal temperature by about 15°C from the outside, without the need for air conditioning (air conditioning is present in the design, but is only used in extreme heat situations).
In addition, native trees have been planted around the site to reduce the temperature around the project and reduce hot air bubbles.
The circular format of the "Toca do Urso" hall is made of gabion walls and is very absorbent, guaranteeing thermal comfort inside the hall even in crowded situations, accommodating more than 150 people.
In addition, the angle of the roof helps to reflect the sound and direct it to the outside area - like a folding board - which not only reduces the internal noise, but also evenly distributes the sound of the bands that appear.
This form is semi-buried, surrounded by greenery, and also helps to block out the noise of the highway near the entrance to the factory.
The project is not enclosed, so the garden and sky can always be seen from any point of the space.
The balance between natural and artificial light is achieved through skylights and discs.
High natural daylight and at the same time blocking radiation, helping to reduce internal temperatures.
The environment is open, so the air is renewed by cross-ventilation or convection.
Water mirrors and underground immersion ducts help humidify, filter air, and lower temperatures.
In addition to the bathroom and kitchen areas, the design is spacious and has no walls, which can be used in a variety of ways - infrastructure is provided in the garden for future use or expansion.
In addition to the bioclimatic resources already described, the "toca do urso" stands out for its shape from a structural point of view. Through circulation, it allows the use of a combination of precast concrete slabs (often used for the canalization of corrugations) and gabion walls to support the embankment land, replacing large structures and low-cost evaluation techniques, avoiding waste and valuing labor and local raw materials.
The lightweight roof of PU sandwich tiles allows for a lightweight structure made of glued beams, which helps to reduce the depth of the foundation. These outbuildings were built by reusing containers and even municipal buses that circulated in the area.
The project aims to create an environment that optimizes natural resources (natural ventilation, light panels, air collectors, natural humidification, water collection and reuse, permeable flooring) as well as prevents waste and material reuse.
Some items are reused, such as barrels that serve as air-conditioning ducts in salons, not only because of aesthetics, but also because of the large load capacity of its form, which allows to open a hole in the gabion without disrupting its stability.