Pittsburgh’s new convention center, with its distinctive
sweeping roof inspired by the city’s powerful suspension bridges, offers
dramatic vistas onto the Allegheny River and historic downtown. This new civic icon, the largest
LEED-certified building and the first Gold LEED-certified convention center in
the U.S., is a model for environmentally-conscious design. Responding to
climatic and site ecological concerns, the center incorporates high-performance
environmental features such as natural ventilation, natural light, a water
reclamation system, and non-toxic / recycled building materials. A multi-level pedestrian nexus links the dynamic
experience of the city and the expansive panorama of the Allegheny River,
connecting public and functional spaces. The main public concourse is directly
on the riverside, linked by a bridge to a public plaza. The four levels include 330,000 square feet of exhibition
space (250,000 square feet are column-free), 53 meeting rooms, 37 loading
docks, concourse, teleconference and telecommunication capabilities, and open
public terraces. All spaces are multi-purpose and flexible in order to support
varied uses. The slope of the roof encourages natural cross ventilation
of the main space, taking advantage of the convection currents that draw fresh
air from the river. Below, the main exhibition hall opens directly to the
public concourse and river views. On the opposite side, the soaring curve of
the roof projects to frame the city skyline. To achieve the column-free suspension structure, the
architect and engineer designed a custom roof structural system utilizing
suspension bridge technology that provided cost savings due to the reduction of
steel. One of the many technical advancements employed, in addition to the
custom roof, is the highly flexible-glazed 85-foot-tall curtain wall which uses
lateral cable support with insulated glass units that give maximum transparency.