X-lam slabs are composed of five layers of wood with a total thickness of 200 mm. The layers are glued by a dry process.
Structural elements are assembled in place with concealed joints, screws and bolts.
Stavros Niarchos Foundation commissioned Arch. Renzo Piano to design three new health care facilities for the Greek National Health System. They are two general hospitals, in Komotini and Sparta, and a new university children's hospital in Thessaloniki, designed with wooden structures, glulam columns and beams supporting X-Lam floors.
The initiative of the philanthropic organization SNF, which funds projects in the fields of art, culture, education, health and social welfare, will enable, thanks to a memorandum of understanding signed with the Greek government, the health system to be implemented with three modern facilities built with very high criteria of efficiency, sustainability and innovation.
The new facility will meet the needs of the residents of East Macedonia and Thrace, allowing the decommissioning of the old hospital, among the oldest in the country. The design harmonizes the treatment areas with the natural environment. The ground floor is concrete, the first and second floors are wood, with glulam columns and beams supporting cross-laminated timber (CLT) floors. The photovoltaic canopy shading the roof and facades are made of steel. In addition to the photovoltaic panels, 30 km of geothermal wells have been provided, ensuring the total sustenance of the building for heating and cooling.
The hospital, a few kilometers from the city center, is the first public pediatric facility outside Attica serving northern Greece.
The building has 5 levels. The basement, ground, and first floors are concrete.
The second and third floors are wooden, with glulam columns and beams supporting CLT floors. The photovoltaic canopy, with a shading function, and the facades, are steel. The project is prepared to achieve LEED Gold certification.
The new health care facility is inclusive, and will make quality medicine available to all. Key aspects of the design include the natural element, which is fundamental to patient care and the well-being of the staff who experience the spaces on a daily basis. The hospital is totally surrounded by the vegetation of the Peloponnesian hills.
The structure is characterized by a single volume, arranged parallel to the existing hospital, which has six levels, three of which are underground.
The hospital takes advantage of the roof to generate electricity from renewable sources by installing photovoltaic panels.
All three projects share a people-centered approach and a constant focus on the natural environment in which they are integrated through careful use of renewable energy resources and principles of energy and social sustainability. The use of light and natural ventilation find application both in public spaces and in the inpatient rooms. As in the Asklepeion, the healing temple of ancient Greece, nature plays a therapeutic role in the patient's rehabilitation process. The facilities are totally immersed in nature to foster a peaceful and relaxing environment for patients and their families, but also for doctors, nurses and all staff.
From a technological point of view, three basic concepts have been established: high seismic resistance, durability and sustainability. The use of wood to build above-ground structures ensures compliance with the three principles. Wood is strong, durable and above all lightweight, which is the most important quality for an earthquake-resistant structure.
The building system consists of pillars and double glulam beams, to which walkable decks made of X-lam panels are applied. Seismic stiffness and sound insulation are provided by a concrete hood cast over the floors.
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