EVER SEEN A RIVER OVER A RIVER?

lilitan008

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If you are not a Physics person, read on and learn a fact of physics.   公仔箱論壇8 v! ]: d- C5 X! U
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Even after you see it, it is still hard to believe!( S: V6 p" n1 @2 l% b( g
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Magdeburg Water Bridge in Germany  What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
- x# z9 i; ~/ PThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. tvb now,tvbnow,bttvb& D! [( W' l. t. |' `
It is located in the city of Magdeburg, near Berlin.
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. [& c1 Z6 q+ QThe photo was taken on the day of inauguration.5.39.217.76; e" Z3 r# E% L, [( H" y
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.* _3 {+ A! j2 j, V
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Question:
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) F8 Q0 u9 r' a7 F. v4 R' O5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
4 S% z2 Q/ K) e6 z& i8 H公仔箱論壇Or just the weight of the water?
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( L# S5 Y! V9 d5.39.217.76Answer:TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。- `$ H, N, \& L5 X: r3 @

! L0 R3 \& o' FIt only needs to be designed to withstand the weight of  the water!
; e& Z# P  p: Q$ s3 \4 L公仔箱論壇Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。; W0 r; @; l7 Z3 G( {# W/ M
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7 u3 ~9 M4 ?$ V6 ^5.39.217.76The Incredible Magdeburg Water Bridge in Germany
$ ~& N; G4 Y" X, h3 i2 TThe Magdeburg Water Bridge is a navigable aqueduct in Germany that connects the Elbe-Havel Canal to the Mittelland Canal and allows ships to cross over the Elbe River. At 918 meters, it is the longest navigable aqueduct in the world.
9 L; Y  t$ E" rThe Elbe-Havel and Mittelland canals had previously met near Magdeburg but on opposite sides of the Elbe Ships moving between the two had to make a 12-kilometer detour, descending from the Mittelland Canal through the Rothensee boat lift into the Elbe, then sailing downstream on the river, before entering the Elbe-Havel Canal through Niegripp lock. Low water levels in the Elbe often prevented fully laden canal barges from making this crossing, requiring time-consuming off-loading of cargo. 公仔箱論壇$ G, b, {$ U; b5 Y" g
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Construction of the water link was started as early as in the 1930s but due to the World War 2 and subsequent division of Germany the work remained suspended till 1997. The aqueduct was finally completed and opened to the public in 2003. " L5 Y, h: n5 J3 f  z  L
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TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。7 e! n# N5 n0 ?& a7 E, ]$ I

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busyfun

這宏偉壯觀、傲視寰宇的工程傑作早在 1919 年工程師們即已提出3 c; Q4 l9 N8 _5 M, }
連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇, ^- ^& Q% N% z7 ^& R
也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。公仔箱論壇$ x+ x4 I6 D; ?9 S2 c  l0 i
隨後的冷戰時期，德國分裂，該專案被東德政府無限期地擱置下來。公仔箱論壇# U% h# N8 a: h! E& o6 o
德國重新統一後，隨著道路交通重大工程規劃的編制，水橋再次成為一個優先專案。
" h! m/ d( S& S8 v5 D) s4 j/ h7 U於1997年開始建造，經過 6 年，耗資 5 億歐元，2.4 萬噸鋼材和 6.8 萬
7 s3 T  h1 m& Itvb now,tvbnow,bttvb立方公尺混凝土，完成了巨大的水橋，連接柏林的內陸港與萊茵河沿岸港口。
! a2 M# t: I: k3 y# w( }; ~2003 年正式通航，水橋全長 918 公尺。 而 2003 年之前，在米德蘭運河和
0 U% B8 z# [% l" |9 Y" g* l: cTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。易北河-哈威爾運河之間運行的船舶不得不繞道 12 公里通過。

swyip21

多谢您的分享！

Mimisan

first time heard & saw it, thanks for sharing, thanks tvboxnow!!