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New Hoover Dam Bridge Between Nevada and Arizona.

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Presentation on theme: "New Hoover Dam Bridge Between Nevada and Arizona."— Presentation transcript:

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2 New Hoover Dam Bridge Between Nevada and Arizona

3 Picture Title Hoover Dam Click

4 Picture Title Hoover Dam California Nevada Click

5 Picture Title Hoover Dam Hoover Dam Bridge Click

6 Picture Title Hoover Dam Bridge Hoover Dam Click Nevada Arizona State line Time zone line

7 New method to build a reinforced concrete bridge without the conventional temporary shoring

8 The suspension cables for temporary support

9 suspension cable

10 Reusable metal sliding formwork High line cable conveyor

11 Suspension cables temporary support System

12 The concrete Arch designed for carrying the temporary and permanent load

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15 Conventional scaffold system, too expensive ! !

16 Reinforced concrete twin Arch connected by steel struts Steel strut

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21 Steel Box Girders and concrete roadway deck

22 Colorado River

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30 Lower twin arch was completed

31 Cut off the suspension cables, when concrete up to its strength

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33 Reusable metal sliding formwork for reinforced concrete columns

34 The upper deck columns, build on the top of the lower twin arch

35 Steel Box Girders

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37 Pre-stressed concrete and steel box composite Girders

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39 Hoover Dam Bridge over Colorado River

40 Hoover Dam Bypass Bridge Opened Oct. 19, 2010

41 The center line of Colorado River and Hoover Dam Bridge was State Line of Nevada and Arizona, and also a Time Zone divided line of Pacific and Mountain Time, If drive from west to the east, when you pass the bridge, you will enter Arizona and gain one extra hour. Click

42 Name of the Bridge In the beginning called : Hoover Dam Bypass Bridge now the official name was : Mike OCallaghan – Tillman Killey Memorial Bridge Mike O'Callaghan – Joined the Marines at sixteen, 1952 he lost part of his left leg in the battle of Korean War, 1971 to 1979 was Governor of Nevada, later he was the Executive Editor at the Las Vegas Sun newspaper, he died on March 5, Tillman Killey – Arizona famous NFL football player, he gave up his well paid job and joined the army, he died by a friendly fire in Afghanistan on April 22, Click

43 Hoover Dam Bridge technical information Designer : T. Y. Lin International ( ) 1988 finished the investigation and environmental report. The design work start in July 2001 & finish two years later. Bridge length : 1900 ft ( 580 m ). Arch span : 1060 ft ( 320 m ). Bridge width : Four lane highway. Bridge height : 840 ft ( 263 m ), 2 nd height of U.S. Bridge away from Hoover Dam : 1600 ft ( 550 m). Construction began on Feb and completion on Oct Construction cost : 114 million. This is the first Concrete-and-steel composite arch bridge built in United State. Pedestrian access is provided over the bridge for tourists. Click

44 Hoover Dam technical information Hoover Dam was built after 1930 Great Depression, it was a project to increased job for American worker. Type : Concrete gravity - arch dam Top width : 45 ft ( 14 m), Base width : 660 ft ( 200 m) Dam height : 726 ft ( 230 m), and 1245 ft (380 m) long Construction begin at 1931 and finish at 1936 Total cost : 49 million Reservoir : 28,537,000 Acre ft (35,200 Kilo cubic meter) Power annual generation : 4.2 Billion kwh Worker : Hired 5500 construction workers, Chinese labor was forbidden by construction contract. Hoover Dam was a tour spot, every year more than million of peoples visit there. Click

45 (T. Y. Lin) : Nov. 14, 1912 – Nov. 15, 2003,1931,, 1933 University of California, Berkeley.,, UC Berkeley, T.Y. Lin International,.. (Pre-stressed and Post-tensioning Concrete),,,. 1970,,. 1972, National medal of Science. 1996, Click

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