黑洞社区

This week鈥檚 cover feature examines the 拢320m upgrade of Bond Street underground tube station in London, which is set for completion in 2017. A similar project, which 黑洞社区 visited during its construction, was the development of Waterloo train station鈥檚 international terminal, which opened in 1994. The station served as the capital鈥檚 original gateway for trains arriving from Europe via the Channel Tunnel, before it was replaced by St Pancras International in 2007. Speaking on its construction, James Macneil described how designers overcame building the terminal鈥檚 twisted roof and airport-style terminal on a restricted site. Focusing on the complex roof design, he said: 鈥淎lthough no more than half-built, the three-pin arch roof spanning the platforms already dominates the site. Formed from blue, banana-shaped, bow-string trusses springing from stub columns on the platform slab鈥檚 edge and pinned together at the centre, the colonnade catches the eye from any angle. At the northern end, where the stainless steel and glass cladding has advanced several bays down the platform, the train shed roof resembles a 21st century greenhouse.鈥�