evolution of bridge technology - Structural Engineering Institute

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First of all, What are our bridges made up of? Let us look at the bridges we have today.
In the several thousand years since we started building bridges, we have built only FOUR TYPES OF BRIDGES
Page 1 and 2: ASCE/SEI Workshop, Washington DC, F
Page 3: Evolution: Human beings started bui
Page 8 and 9: Extradosed Bridge is a combination
Page 10 and 11: Franz Dishcinger proposed this comb
Page 12 and 13: All four types of bridges have exis
Page 14 and 15: All four types of bridge have exist
Page 16 and 17: Because we have not invented anythi
Page 18 and 19: Today’s bridges Bigger, stronger,
Page 20 and 21: What affect the evolution of bridge
Page 22 and 23: What affect the evolution of bridge
Page 24 and 25: They did it empirically! Structural
Page 26 and 27: They did it empirically! Structural
Page 28 and 29: Creation of a bridge - A Flow Chart
Page 30 and 31: Two Dominating Materials in the His
Page 32 and 33: ARCH ERA Stone
Page 34 and 35: Arch is the only bridge type that d
Page 36 and 37: The Romans built many spectacular a
Page 38 and 39: The Romans built many spectacular a
Page 40 and 41: Semi-circular vs Segmental 18.5m 7m
Page 42 and 43: The Romans were really masters on s
Page 44 and 45: Contemporary Era From 1850 until no
Page 46 and 47: There was a transition period that
Page 48 and 49: The Chinese started building iron c
Page 50 and 51: A bridge in Tibet
Page 52 and 53: Iron arch bridges was popular for a
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Menai Bridge - the first major susp
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Steel Mass production processes wer
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Steel Mass production processes wer
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The Brooklyn Bridge, New York City
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Then came A tale of three bridges,
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Competition of Span Lengths Span Ye
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Long span suspension bridges became
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Golden Gate 1280m, 1937 Verranzano
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Span Length (m) 2500 2000 1500 1000
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The two giants: Messina 3,300m Gibr
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High Strength Wires also made cable
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Three World Record Spans within 60k
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High Strength Steel also made prest
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Two Significant Prestressed Concret
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SPAN LENGTH (m ) 跨度 350 300 250
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Effect of Materials on Evolution of
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Evolution: 1. What was the most imp
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Aerodynamics Most early suspension
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Aerodynamics Most early suspension
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Engineering is an art, not a scienc
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But Evolution of bridge technology
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COSTS: Planning Right of Way Constr
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As our society progresses, the livi
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As our society progresses, the livi
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Tot al Lengt h ( km) 90000 80000 70
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My last question today: Currently,
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My last question today: Currently,
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Here is a historic record of HAIR.
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Coming back to My last question tod
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