Bridge

Truss

a framework, typically consisting of rafters, posts, and struts, supporting a roof, bridge, or other structure.

Abutments

the ends of an arch bridge that support the load and connects the bridge to the ground

Keystone

a central stone at the summit of an arch, locking the whole together.

Sydney Harbour Bridge

Arch bridge

Main Span

Length of the roadway suspended btwn the supports of a brisge

Fred Hartman Bridge

Longest cable stayed bridge in Texas

fracture critical

Nation's top safety threat

NTSB

National Transportation Safety Board

Arch Bridge load

Not pushing straight down, instead carried along the curve

Cause of bridge collapse

Odd occurrence (unexpected event), poor maintenance, design defect, manufacturing defect (faulty materials or components), construction accidents, floods, boat crashes, train crashes, fires, and earthquakes

Frankford Avenue Bridge

Oldest surviving bridge in the US

Rainbow Bridge

Over Niagara Falls connects Ontario, Niagara Falls, NY, & Niagara Falls Ontario

Brooklyn Bridge

1883 connects island of manhattan w the borough of brooklyn

Bridges in the US

6,000

I-35 Mississippi River Bridge

8 lane steel truss that failed due to a design error

Tacoma Narrows Bridge

A bridge destroyed on 11/7/1940 caused, in part, by resonance. The wind blowing across the bridge caused vibrations to move through the bridge at its resonant frequency. These waves interfered with each other (constructively) and caused a large build up in energy until the bridge began to twist and then collapse.

Faust street Bridge

Bridge in New Braunfels that connects faust street to porter street. Now a park attraction

Oresund Bridge

Connects Denmark and Sweden, ends overwater and continues underwater.

Single arch bridge over the river meles in izmur, turkey

Dates to 850BC, oldest bridge still in use

Peace Bridge

East end of lake Erie . 1927 named after a century if peace btwn the US and Canada

Strength

Proportional to the bridges main span. Shorter better than longer

Golden Gate Bridge

San Francisco, California

Zavikon Island Bridge

Shortest bridge in the world 32 feet, connect canadian island to American island

Beam Bridge

Simplest type of bridge

Akashi Kaikyo Bridge

Suspension bridge in Japan, longest span in the world, 1991m central span total length of 3911

Beipanjiang Bridge

Tallest bridge in the world, china

Bridge of Life

The renamed Mapo Bridge in attempts to stem the amount of suicides committed on the bridge

Types of Bridges

beam, arch, truss, cantilever, suspension, & cable-stayed