PPT-Bridges & Forces

How Forces Affect Different Types of Bridges Forces on a Beam Bridge Simplest design girder bridge Compression on top of the beam Tension on bottom of beam Middle part not much of either forces. Suspension Bridges. A suspension bridge is a type of bridge which is built by suspending the roadway from cables attached to a master cable which runs above the length of the bridge. . They are strong and lightweight. HUMANS . THROUGH THE . AGES. Daria. . Prikhodko. 627 gr. .. TYPES OF BRIDGES. BEAM BRIDGE. CANTILEVER BRIDGE. ARCH BRIDGE. SUSPENSION BRIDGE. CABLE-STAYED BRIDGE. MOVABLE BRIDGE. DOUBLE-DECKED BRIDGE. We build different bridges for different needs. . Covered Bridge. Covered Bridges. In the 18. th. and 19. th. century many bridges were covered. Covered Bridges. Why do you think these bridges were covered?. What is a bridge?. A bridge is an elevated structure designed to support the movement of objects over a span. Bridges are made of steel and pure awesomeness. Designed by Leonardo da Vinci . Bike Bridge, Norway. The first bridges were nature-made: trees that fell across creeks or rivers.. The first man-made bridges were most likely made from trees lashed, stones, or vines.. HISTORY. Designed amazing arch bridges and viaducts that could withstand nearly anything when other bridges continued to fail. . By: Jenna VonAhnen. First African-american girl to go to all white southern school by herself.. Ruby Bridges at age 6 gets escorted in and out of William Franz elementary school in New Orleans by her mother and U.S. Federal Marshals. As she spends almost the whole year in a classroom alone with Mrs. Henry, the only teacher willing to teach Ruby she gets the education her mother believes she deserves. By Ruby attending an all white school, it hepled with continuing the Civil Rights Act.. Help! The Gingerbread Man has a problem. . He has come to a river and must cross it.. You are part of a team of . civil engineers. . . Engineers must make important decisions about bridges so that people and their cars, buses, and trucks can safely pass over them for many years. . Goals. You will write a program that implements a simple Ethernet bridge. The bridge must forward packets from hosts. Thus, you’ll need to maintain a forwarding table. The network may have loops. Thus, you must implement the spanning tree protocol. Currently, the NBI allows 15 alpha/numeric characters in a structure #.. Historical BIA numbering:. 0 . 0 0 0 . 0. . 0 . 0 0 0 . 0. . . 0 A 1 2 3. . 1 . . 2 . 3 . Suspension Bridges Suspension Bridges Efficient Structure b/c: Suspension Bridges Efficient Structure b/c: Most members in Tension Main Cable in Tension Suspenders in Tension Suspension Bridges Efficient Structure b/c: Help! The Gingerbread Man has a problem. . He has come to a river and must cross it.. You are part of a team of . civil engineers. .. Engineers must make important decisions about bridges so that people and their cars, buses, and trucks can safely pass over them for many years. . . One of the 3 main kinds of bridge is a . beam bridge. . A beam bridge is made by having a long beam lay across a space to connect two places. The beam is a flat piece of wood, metal, or concrete that gives people a way to walk or ride across. Under the beams are tall poles or posts, called piers, that help to hold up the beams. Beam bridges are the most simple kind of. Michael Matthews, CEO - The Sequoia Project, MedVirginia, ConnectVirginia BUILDING BRIDGES: CURRENT AND FUTURE ROLES FOR HIE St. Johns Bridge Portland, OR 205 feet Gephyrophobia (from Greek words “ Definition of . a BRIDGE. A . BRIDGE.  is a . structure.  . built . to . span.  physical . obstacles . such as a . body of . water.  . valley. road . Designs of bridges vary depending . on .