Athens Olympic stadium Case Study Example | Topics and Well Written Essays - 1250 words

capital of Greece Olympic bowlful - Case Study ExampleThe immense size of the project and its particular expert complexity were the causes for long delays the take a shit was finally completed in time and the new captivating field was officially reopened on July 30, 2004 (O.A.K.A. 2005).The Athens Olympic stadium hood in the form of a persona bowstring tied arch of 80 m high is considered one of the most ingenious modern architectural and engineering projects. This impressive construction of poise and glass is today one of the citys landmarks. Along with its spectacular and pioneering architectural design, the suspended arched roof construction and erection has been a challenge to engineers and an excellent example of desegregation of construction engineering and hydraulic expertise (Siriani & Di Silverio 2006).The roof structure is in two halves, each comprising a top arch of a diameter of 3.25 m and a lower crookedness tube of a diameter of 3.6 m extending for 304 m over t he stadium. The wall thicknesses of the tubes are up to 95 mm. All cardinal tubes merge at their ends and are based on four support steel shoes (19 m x 4 m x 4 m) made from 100 mm thick steel plates. The tubes support wire cable systems that hold polycarbonate panels of a weigh of 17,000 ton in total. 220 girders cantilever out of the torsion tube supporting the panels, thus forming the roof deck. Finally, the panels are covered by a special cultivation to reflect 60% of the sunlight. Apart from providing shadow, protecting athletes and spectators against the hot Greek summer sun, the roof served as a carrier for telecommunications and security systems during the Games (Siriani & Di Silverio 2006). The layout of Calatravas roof can be seen in figure 1.Fig.1. The Athens Olympic stadium layout and dimensions of the roof (redrawn from Siriani & Di Silverio 2006).The roof construction project was contracted to the Italian Costruzioni Cimolai Armando Spa of Pordenone. In detail, the s tages of the building passage were segment apologue and pre-assembly, segment shipping to construction site, on-site assembly and erection of the two halves of the roof at a distance from the sports arena and finally assembly pulling (sliding) into position. With the exception of the sliding yard that was sub-contracted, all remaining stages were undertaken by Cimolai (Siriani & Di Silverio 2006). A number of difficulties arose during the renovations works that were mainly linked to the immense graphic symbol of the project and the shortage of available time these issues required technically advanced, ingenious solutions. All steel fabrication works took place at Cimolais site in Italy, using a 6000 ton press, one of the largest in Europe. The support shoes and pre-assembled tube segments of up to 15 m in length equipped with cable anchorages, diaphragms and girder connections were constructed there and were subsequently shipped by sea to Athens. Shipping has been a gigantic ope ration due to the unreasonable size of the segments of the roof (Siriani & Di Silverio 2006).A second particularity of the project was that roof assembly and erection could not take place at its final position, so as to allow other renovation work in the stadium to proceed during the assembly process. Thus each of the arch structures was put together one by one on each side of the concrete stadium, at 70 m far from either side. pileus