Key：Spain | Large building

项目概况:

porta fira, designed by toyo ito and b720 arquitectos is a gateway to the cities of l’hospitalet de llobregat and barcelona from el prat international airport. the project consists of two differentiated towers, the hotel designed by toyo ito while the office designed by b720 arquitectos, which engage in a subtle dialogue. despite the clear contrast between the buildings in terms of form, the relationship they establish is harmonious and complementary. the buildings (each 110 m high) play a highly symbolic role as they pay tribute to the historical venetian towers that stand at the entrance to the exhibition centre located near plaza espana in barcelona. the hotel tower was designed with an organic form and appears to change as one moves around it. given the building’s geometrical complexity, the fa?ade is divided into two skins. the inner skin is a sealed envelope based on a light curtain-wall solution with aluminium and glass panels designed to fully meet all acoustic, thermal and sealing requirements. the exterior fa?ade acts as a second skin that provides texture and accommodates the tower’s variable geometry. the skin is made of independent aluminium tubes whose ends are attached to ball-and-socket joints that allow for the desired torsion. the office tower complements and responds to the perceived twisting and movement of the hotel building. at first glance it appears to be a pure volume with a glass curtain wall set back slightly with respect to the floor slab. however, the red vertical core of the building, situated on the edge of the ground plan, is organic in form and reflects the structure of the hotel tower. the two towers are also linked by a shared atrium. a large base joins the towers and amplifies the impact of their structure.