# * Beam Arch Suspension Bridges. Beam *Arch Suspension.

## Presentation on theme: "* Beam Arch Suspension Bridges. Beam *Arch Suspension."— Presentation transcript:

* Beam Arch Suspension Bridges

Beam *Arch Suspension

Bridges Beam Arch *Suspension

Forces Managed by Bridges Compression pushes inward or toward the object’s center Tension pulling or stretching force

Beam Bridge

I Beam Construction Building the Empire State Building Valley Fair Wild Thing Video

Wabasha Street Bridge St Paul, Minnesota Spanning the Mississippi Cantilever deck truss Beam Bridge 1890

PRATT CURVED CHORD PRATT BALTIMORE PENNSYLVANIA(PRATT) WARREN W/O VERTICAL SUPPORTS WARREN WITH VERTICAL SUPPORTS QUADRANGULAR WARREN SUBDIVIDED WARREN TYPEs LATTICE WHIPPLE

The Akashi-Kaikyo Bridge in Japan, world's longest span.

Kingston-Rhinecliff Bridge – under deck truss

Elbbrücke 1990 Tangermünde – above deck truss

Arch

Catenary Arch Curve of idealized hanging chain when supported at its ends. Acted on only by its own weigh

Euler proved in 1744 that the catenary is the curve which, when rotated about the x-axis, gives the surface of minimum surface area (the catenoid) for the given bounding circle. http://mathworld.wolfram.com/Catenoid.html

Arch Bridge Semicircular structure Rigid span Curving upward between two points of support Transfers the weight of the bridge and its load partially into a horizontal thrust Horizontal thrust is restrained by the abutments at either side

The Arkadiko Bridge in Greece Built 13th century BC One of the oldest arch bridges in existence

Stone Arch Roman Bridge of Córdoba, Spain. Built in the 1st century BC

Stone arch bridge in Shaharah, Yemen

Central Park NY Pedestrian Bridge

The keystone is the most important stone in an arch bridge, without this stone the arch would collapse. The keystone holds the arch together.

Three-story Roman Pont du Gard Aqueduct

Gothic Arch Main portal Notre Dame, Paris 1.Construct AB. 2.Set compass to AB 3.With compass at point B, construct arc AC. 4.With compass at point A, construct arc BC.

Juscelino Kubitschek Bridge in Brasilia, Brazil Arch Suspension Hybrid Bridge

Ted Talk Suspension Bridge

the force exerted is uniform with respect to horizontal distance the result is a parabola

Primitive suspension bridge over the River Astore

Cable supported bridge

How compelling is the need of humans to be able to move across their world?

Tacoma Narrows Bridge Gallopin’ Gertie

Draw Bridge Double leaf bascule

Draw Bridge Rolling lift bridge

Swing Bridge Moveable

Swing: Government Bridge Lock and Dam #15 Across Mississippi

Rotating Bridge of the "rue Dieu" and Canal St Martin (Paris)