Truss bridge

A beam bridge or known as a girder bridge, is a bridge structure that consists of horizontal beams spanning supported by pillar at each end of the deck. The weight of the beam including the structure itself, plus any load it carries are supported by the downward force into the pillars. The beam bridge works on the principles of compression and tension, where on top of the bridge bends, it undergoes compression and at the bottom it is subjected to a horizontal tension. Therefore, the bridge must…

section of the I-35W bridge over the Mississippi River in Minneapolis, Minnesota, suddenly collapsed. 145 people were injured, and thirteen died. This case study is based on an investigation of material evidence provided by the NASA Safety Center(NSC), National Aeronautics and Space administration (NASA), National Transportation Safety Board (NTSB), and a full-scale load rating of the bridge superstructure. Proximate (Direct) Cause: Gusset plates finally fractured by the former bridge heavy…

Bridges are used around the world to get over a bay of water. There are several different designs that could be used when building bridges such as arc, beam , cable-stayed, truss and suspension bridges. The Golden Gate Bridge is a very well known example of a suspension bridge. It is located in San Francisco, California. Construction began in 1933, in the midst of the Great Depression, and the bridge gave steady jobs to many people during this hard time. It was finished and opened in 1937,…

Bridges Types Assessment There are five main types of bridges, these include the truss bridge, the arch bridge, the suspension, the beam bridge and the cable-stayed bridge. Each of these categories has various strengths, weaknesses and defining features and these are listed and clarified in the following report. The Truss Bridge Truss bridges are a reliable, economical and easy-to-build variety of bridges as they use a combination of tension and compression to provide a high level of…

History From the earliest of times we created bridges. Hunters needed to cross rivers and a fallen tree may come in handy.Early suspension bridge consisted of intertwined forest tendrils In Roman times they built bridges over ravines like Trajan in AD 105 that crosses the Tagus in Spain the bridge was made of granite with two massive arches 110 feet wide and 210 feet tall relative to the water.Every wedge block weighed 8 tons. Slaves organized these blocks through a system of pulleys powered by…

Discussion: Bridges are affected by both internal and external forces. Internal forces occur within the bridge, through tension, compression, bending, etc. External forces are applied to the outside of the bridge, and can be static or dynamic. The static load of the bridge is the bridge itself, and the weight of its members and components. This is created by the force of gravity pulling on the members of the bridge. The dynamic load moves and changes, such as traffic, people, wind. It is created…

Much Cargo the Bridge can Hold Shivan Giroti Ms. Page Honors Life Science P6 10/2/15 Statement of Purpose The purpose of this experiment is to see how someone can use less materials to make safe bridges that work well. The controls are the material of the bridge, the model of the bridge, the cargo, and the surface. The manipulated variable is the distance between the support structures. Hypothesis If the support structures are each 1/4 away from each other then the bridge will hold…

decided to do a bowstring bridge. A bowstring bridge normally are used to carry road and rail traffic. By bowstring bridges being able to use arches it makes it so that the weight of anything crossing the bridge is actually able to go straight down into the bridge instead of dispersing across the entire bridge. This makes sure that the bridge doesn’t have one spot taking on too much weight on the bridge. Bowstring bridges tend to be become stronger over time because the bridge becomes compact on…

Line: During my observation of Three Cranes, lines that appear to be distinguishable would be the horizontal lines as well as the diagonal lines. The horizontal lines are noticeable since the image appears to be in layers, which involve layers of soil, grass, shade, and light. Furthermore, the image presents diagonal lines through the posture, position, and sight of each crane. The crane whose body is closest to the soil represents a wide diagonal line that appears to be increasing from right…

and water falls between the mountains. The water falls have swinging bridges going across them and not everyone will walk across because of the fear of it breaking or swinging too much. So my idea is to have the children build a regular bridge with a roof that does not swing and sheds shade to those in wheel chairs can enjoy the water falls and bridge as well. In this activity we will use Lincoln logs to build a two layer bridge that stretches across with a covered top. First we will sort the…