While working on the bridge‚ I was asking how do congruent structures give strength to bridges in real life? I think congruent structures give strength to the bridge because triangles have their rigid shape and strength. Unlike a square‚ that can shift into a parallelogram when force is applied to one of its sides‚ an equilateral triangle’s sides and angles are fixed. For example‚ triangles have beam which are the rigid shapes that helps the abutments of the bridge. When triangles supports the abutments
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CHAPTER 1 INTRODUCTION 1.1 Introduction A bridge consists of super structure of steel or reinforced concrete member that is supported on one or more points by cables extending from one or more tower is known as cable stayed bridge. The cable-stayed bridge is one of the most modern bridges. It consists of a continuous strong beam (girder) with one or more pillars or towers (pylons) in the middle Cables stretch diagonally between these pylons and the beam‚ these cables forms intermediate supports
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and any additional weights placed on it. This bridge must have a truss design. Step three of our design process we search for ideas. From our research we know that the triangle is the strongest shape in construction and this is why trusses are made up of triangles. Our bridge must be a truss bridge design. So we have done research as a group and individually on the different truss bridge designs. There are many different truss designs that already exist. So we have done internet research into
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The Tacoma Narrows Bridge was the third largest in the world in 1940. Unfortunately that wouldn’t last too long. On November 7th‚ 1940 only four months after being open it collapsed due to violent swaying and flexing. Some of the reasons for its collapse were that it was put in an area of Tacoma that was prone to high winds and the engineer used solid girders instead of open trusses to cut costs. Another issue that engineers later learned about was its lack of aerodynamics. With that said we will
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The trestle bridge is built with lateral and angled bracing‚ and horizontal and vertical reinforcements; to ensure the bridge can bear maximum weight. The base of the bridge is simply constructed with lateral bracing which is connected by horizontal panels that are connected to a horizontal‚ upright‚ panel on either side. Although‚ engineers rarely place lateral bracing on the base‚ it provides for extra stability. Moreover‚ the base also has upright and angled Popsicle sticks connected to the lateral
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What is a truss and how are trusses used in bridge design? Include the importance of triangular shapes in truss design. A truss is a formation produced by triangular components. The triangular units forming the truss are slim and straight in form. The truss bridges consist of a grouping of triangles. Trusses are used in bridge design to form a series of strong supports using triangles‚ and have the forces of tension and compression acting on them. The importance of triangular shapes in truss design
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Advantages Truss bridges have many advantages that make it more useful for everyday use. The truss bridge is very economical to build and uses very few resources. It uses light materials and small loads of timber or whatever it is being made of. It is also one of the stronger bridges that can be built. The trusses on top of the bridge make it very strong because the triangle shape takes away much of the pressure and spreads the pressure to the triangles and takes it away from the road part of the
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Boomilever Project Team “Truss Me” Amanda Resha Ridge Coffman ENGR 2110-01 Engineering Statics November 24‚ 2014 Table of Contents 3 – Report 3 – Introduction 3 – Literary Review 3 – Frist Design 4 – Second Design 4 – Final Design 5 – Conclusion 6 – References 7 – Appendix Introduction: The purpose of the Boomilever Project is to build a cantilevered truss that is light-weight while still able to support 15 kilograms. With this project it serves to reinforce the cumulative concepts
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uncommon; approximately 12% of U.S. bridges are rated structurally deficient. T Steel truss bridges‚ like I-35W‚ were more frequently labeled structurally deficient; approximately 31% of the 465 steel truss bridges in the U.S. were listed as structurally deficient at the time of the collapse. Such bridges consist of straight beams of steel formed into triangular units (Figure 1). In large steel truss bridges‚ the ends of the beams are connected with riveted metal plates called gusset plates
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Have you ever crossed a bridge when driving around your city and thought about how it was constructed or how long did it take to be built or is this bridge really safe and will it ever fall down. Well‚ I certainly have and I know that I don’t want for a bridge to fall down whenever I am driving or walking across one. It was 6:05 pm‚ the rush hour in Minneapolis‚ Minnesota and the unimaginable at the I-35W bridge occurred. On August 1‚ 2007 the 1‚907 foot long bridge collapsed leaving dozens of cars
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