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Concept
Concept
Tension and compression
in the context of suspension bridge physics
Cables pull upward while towers push down, splitting the deck's immense weight between them.
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Concept
Concept
Aerodynamic flutter
in the context of bridge instability
Breeze passing over a solid roadbed can catch a rhythm and twist the deck until it snaps.
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Book

Galloping Gertie

The 1940 Tacoma Narrows Bridge Collapse and the Aerodynamic Lesson Learned from a Twisted Deck

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Key takeaways
  • The 1940 Tacoma Narrows Bridge Collapse and the Aerodynamic Lesson Learned from a Twisted Deck
How To
How To · FIG. 10

Anchor Heavy Steel Cables Into Solid Rock

Pour the concrete anchors before tension pulls them upward.

SHOW ME HOW
History
ADMIT ONE
History

Build Over Water When Wood Is Not Enough

Early iron spans fell down so modern engineers could learn.

START AT THE BEGINNING
Overview
Overview

Keep Heavy Concrete Decks Hanging In Air

Steel wires pull up while massive towers push down.

THE LAY OF THE LAND
Overview
Overview

Distribute Traffic Weight Across Curved Steel Paths

Every car adds load that travels straight down the towers.

THE LAY OF THE LAND
Editorial
— Editorial —

Watch Smooth Wind Turn Rigid Steel To Rubber

Bridges twist apart when steady air starts pushing sideways.

by THE DESK
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