PPT-Suspension Bridges Suspension Bridges

Efficient Structure bc Suspension Bridges Efficient Structure bc Most members in Tension Main Cable in Tension Suspenders in Tension Suspension Bridges Efficient Structure bc Most members in Tension. 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. How Bridges Are Engineered To Withstand Weight, While Being Durable,. And In Some Cases Aesthetically Pleasing. Institute Of Electrical And Electronics Engineers, Phoenix Section. ARIZONA SCIENCE LAB®. Bridges. Bridges . A bridge is a structure built to span physical obstacles such as a body of water, valley, or road, for the purpose of providing passage over the obstacle. (Wikipedia). Bridge – design influences. 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. 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?. By . James Hurley&. Lee Byrne . 4th Class. Seomra 13. What are Bridges?. Why do we Use bridges?. Bridges are built over roads, railway lines, vallies,bays, ravines and rivers . We use bridges to connect one place to the other.. 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?. CONTENTS . INTRODUCTION. FINSTERWALDER’S STRESS RIBBON BRIDGE THEORY. FORM OF A STRESS RIBBON BRIDGE. COMPARISON WITH A SIMPLE SUSPENSION BRIDGE. CONSTRUCTION TECHNIQUES. MODEL . TESTS. ADVANTAGES AND APPLICATIONS. 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. . The Longest Bridges in the World…. The Longest Bridges in the World. Have something in common. Suspension Bridges. Suspension Bridges. Efficient Structure b/c:. Suspension Bridges. Efficient Structure b/c:. 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: . 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. 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 .