แสดงบทความที่มีป้ายกำกับ Bridge แสดงบทความทั้งหมด
แสดงบทความที่มีป้ายกำกับ Bridge แสดงบทความทั้งหมด

วันจันทร์ที่ 12 มีนาคม พ.ศ. 2555

The Biggest Bridge of Greece! - (The Rio-Antirrio Bridge)

The 2880 m (9449 ft) long bridge dramatically improves access to and from the Peloponnese, which could previously be reached only by ferry or via the isthmus of Corinth at its extreme east end. Its width is 28 m (92 ft) — it has two vehicle lanes per direction, an emergency lane and a pedestrian walkway. Its five-span four-pylon cable-stayed portion of length 2252 m (7388 ft) is the world's second longest cable-stayed deck; only the deck of the Millau Viaduct is longer at 2460 m (8071 ft). However, as the latter is also supported by bearings at the pylons apart from cable stays, the Rio-Antirrio bridge deck might be considered the longest cable-stayed "suspended" deck. This bridge is widely considered to be an engineering masterpiece owing to several solutions applied to span the difficult site. These difficulties include deep water, insecure materials for foundations, seismic activity, the probability of tsunamis, and the expansion of the Gulf of Corinth due to plate tectonics. The bridge was planned in the mid-1990s and was built by a French-Greek consortium led by the French group Vinci, and which includes the Greek companies Hellenic Technodomiki-TEV, J&P-Avax, Athena, Proodeftiki and Pantechniki. The consortium operates the bridge under concession under its Γ.Ε.Φ.Υ.Ρ.Α. or ΓαλλοΕλληνικός Φορέας Υπερθαλάσσιας ζεύξης Ρίου- Αντιρίου (GEFYRA, Greek for "bridge", French-Greek Carrier of Oversea Connection of Rio-Antirrio) subsidiary. The lead architect was Berdj Mikaelian ...

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วันพุธที่ 25 มกราคม พ.ศ. 2555

Discovery Channel - APE Quad Kong and San Francisco Bay Bridge

A Discovery Channel Episode called Frontiers of Construction did a special on piledriving. APE had two projects they touched on in this episode, one being the San Francisco Bay Bridge, the other being the Quad Kong setup for the Great Pile Wall on the Yangtze River in China.

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