The Science Behind the New Mississippi River Bridge, Part 3 скачать в хорошем качестве

The Science Behind the New Mississippi River Bridge, Part 3

For the past two plus years, designers, engineers and construction workers have been building approach and exit ramps, foundation piers, two cable-stayed towers, cabling for the towers, and the road deck surface for a new bridge across the Mississippi River at St. Louis, Missouri. Newly christened the Stan Musial Veterans Memorial Bridge, it is now open to traffic. Thousands of cars each day are able to use it to travel east and west across the Mississippi River. In this program, we focus on the bridge’s cable-stayed design and the process for building the deck and road surfaces. What it is like to design and build a structure to span the most traveled river in America? Why was a cable-stayed design chosen? How do the towers, cables, and deck structure work together to handle the seismic and physical forces at work on the bridge? How is the bridge deck and road surface put in place? How is the bridge connected to the roads used for access and egress? Learn the answers to these questions and more as you hear from engineers, designers and constructors who are building this new bridge over the Mississippi River in St. Louis. Viewers will see images and view videos of the construction process as well as interact with the professionals who worked every day to build the bridge. This program builds on our Part 1 program that focused on the foundation work for the bridge. An archive of that program can be found at http://www.hectv.org/video/3709/the-s....