Tour First Ghislain FARRADECHE 1159210 Introduction This report will introduce key informations about the Tour First in the central business district 'La Defense'which is in the direct suburb of Paris.I choose this tower because it is the tallest in France and I appreciate the fact Paris choose not to build skyscrapers in the city center.Contrary to Lyon(2nd french city),my home town.I Important figures 231 m high 52 Stories The tower was built in 1974 and was 150m,the renovated in 2011.It is now 231m lasted 4 years.It became the tallest skyscraper in France. Structure The tower is made of a reinforced concrete and the renovated added three wings which represent the three insurances that occupy the building.The core is made of reinforced concrete.Then,the core had to be reinforced to support the ten new stories.The three wings were renovated higher,and slopes were added to the three roofs.It is covered by two layers of hemmh gaz and lift are located in the core. Tour AXA Tour AXA(nouveau) Tour First Ghislain FARRADECHE 1159210 1/3Tour!First Ghislain!FARRADECHE!1159210 1/3 Tour!First Ghislain!FARRADECHE 1159210 Introduction This! report! will!introduce! key!informations! about! the! Tour! First!in! the! central! business!district!'La!Défense'!which!is!in!the!direct!suburb!of!Paris.!I!choose!this!tower! because! it! is! the! tallest! in! France! and! I! appreciate! the! fact! Paris! choose! not! to! build! skyscrapers!in!the!city!center.!Contrary!to!Lyon!(2nd!french!city),!my!home!town.!I Important!figures: 231!m!high 52!Stories The! tower!!was!built!in!1974!and!was!150m,! the!! renovated!!in!2011.! It!is!now!231m! high!and!the!construcution lasted!4!years.!It!became!the!tallest!skyscraper!in!France. 320!million!euros Structure! The! tower! is! made! of! a! reinforced! concrete! ! and! the! renovated! added! three! wings! which!represent!the!three!insurances!that!occupy! the! building.! The! core! is! made! of! reinforced! concrete.! Then,! the! core! had! to! be! reinforced! to! support! the! ten! new! stories.! The! three! wings! were!renovated!higher,!and!slopes!were!added!to! the! three! roofs.! ! It! is! covered! by! two! layers! of! glass!which!create!a!double!skin!on!the!building. The!structure!is!a!concrete!frame.!The!electricity,! gaz!and!lift!are!located!in!the!core