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million today) | floor_area = () | architect = Philip Johnson John Burgee | structural_engineer= Leslie E. Robertson & Associates, R.L.L.P. | main_contractor = Mellon Stuart Construction and Blount Brothers Construction, Joint Venture | developer = Johnson/Burgee Architects | owner = Highwoods Properties | management = Highwoods Properties | references = }} PPG Place is a complex in downtown Pittsburgh, Pennsylvania, consisting of six buildings within three city blocks and five and a half acres. Named for its anchor tenant, PPG Industries, who initiated the project for its headquarters, the buildings are all of matching glass design consisting of 19,750 pieces of glass. The complex centers on One PPG Place, a 40-story office building. Groundbreaking ceremonies occurred on January 28, 1981. The complex buildings opened between 1983 and 1984, and a dedication ceremony took place on April 11, 1984. Total cost of construction was $200 million ($ million today). The buildings were sold by The Hillman Company to Highwoods Properties in 2011. ==Construction== The project was started by PPG Industries (formerly Pittsburgh Plate Glass Company) to serve as the company's headquarters, after being based in Downtown Pittsburgh since 1895.〔(【引用サイトリンク】title=Downtown: PPG Place )〕 The company contracted the project to architect Philip Johnson and his partner John Burgee. Designed in the neogothic style but with modern innovations, the complex had many inspirations, including London's Victoria Tower,〔(【引用サイトリンク】title=One PPG Place )〕 and H.H. Richardson's Allegheny County Courthouse and Charles Klauder's Cathedral of Learning in Pittsburgh. Before the building was constructed, an 8-foot-tall, 600 pound model was pieced together in Tarentum, Pennsylvania by Renato "Reno" Chieruzzi in the basement of his home. Glass for the model was cut at the Ford City PPG works. During demolition and preparation of the site, a team of University of Pittsburgh anthropologists collected over 10,000 artifacts dating to the 18th century in what was the Kings Garden and Kings Orchard about 1,000 feet from the gate to Fort Pitt, as well as many medical instruments denoting facilities in the area. The team also discovered several stone-lined wells and cisterns dating to around 1800 that were subsequently filled with refuse and artifacts in the early 1800s as the early settlement expanded and the wells went dry.〔https://news.google.com/newspapers?id=HblPAAAAIBAJ&sjid=agYEAAAAIBAJ&dq=pittsburgh%20skyscraper&pg=7119%2C6661225〕 The site was the home of the 4 story Guskey's Department Store for much of the 20th century.〔http://pgdigs.tumblr.com/post/70864751769/dec-8-2006-ice-and-glass-at-ppg-place-the〕 The buildings are recognized by their 231 glass spires, with the largest one tall. Also notable are the surfaces of reflective insulating glass, that served to advertise the project's founder. The buildings contain over one million square feet of PPG's Solarban 550 Twindow - 19,750 pieces. The primary building, One PPG Place, is a 40-story tower, with PPG Industries occupying half of the space. The complex also contains a 14-story building, and four 6-story structures. PPG Industries also uses space in one of the other buildings. The lobby of One PPG is a -high entrance that features red glass. The building has 21 elevators, each with walls constructed of clear glass panels enclosing fractured glass. In total, the complex cost $200 million.〔 The design of the building not only made it distinct, but created high energy-efficiency. Heat in the summer is reflected away from the building by the glass, while in winter infrared heat is reflected and contained within the building. The surface walls feature a barrier construction that effectively separates the interior walls from the exterior. The building also collects heat from computer equipment and recycles it throughout the structure.〔 Construction of the building highlighted Pittsburgh's "Renaissance II period", which saw the Pittsburgh economy falter as a result of steel mill closures, while Pittsburgh Plate Glass remained a Fortune 500 company. Office space opened in August 1983, the retail shops opened in November 1984, and the complex was dedicated on April 11, 1984.〔 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「PPG Place」の詳細全文を読む スポンサード リンク
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