Bridges. (2008). Truss Bridge. Retrieved May 23‚ 2012‚ from http://www.acrowusa.com/index.php?page=truss-bridge Avery‚ TJ Axile Compression Picture [Image] (n.d.) Retrieved May 23‚ 2012‚ from http://www.texbrick.com/articles/trusses.pdf Axile Tension Picture [Image] (n.d.) Retrieved May 23‚ 2012‚ from http://www.texbrick.com/articles/trusses.pdf Boon‚ G. (2008). 5 Steps to Building a Model Bridge [EBL version]. Retrieved from www.garrettsbridges.com Boon‚ G Boon‚ G. (2005). Truss Design. Retrieved
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Pratt Truss Bridge The purpose of this experiment is to study several bridges and build a bridge similar to the one that gave the students the uppermost muse. The students had to research facts about Truss Bridges‚ including its beginnings during the late 1700’s. Early Truss Bridge builders were first to spread its name throughout the United States‚ but the name of Truss Bridges soon cultivated across the world. There were numerous reasons as to why the design of Truss Bridges grew so broad. Firstly
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figured out the best way to built it we would test it ourselves. The Pratt truss was first developed in 1844 under patent of Thomas and Caleb Pratt. Since the 1840s through the early twentieth century‚ the Pratt has diagonals in tension‚ verticals in compression‚ except for the hip verticals immediately adjacent to the inclined end posts of the bridge. Pratt trusses were initially built as a combination wood and iron truss‚ but were soon constructed in iron only. The Pratt type successfully survived
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1.Name at least 6 different types of bridge trusses: Pratt‚ Parker‚ K-Truss‚ Warren‚ Howe‚ Camelback http://www.msnbc.com/rachel-maddow-show/common-types-truss-bridges 2. Name and describe the 3 most common types of bridge truss types: Warren: The Warren Truss uses equilateral triangles to spread out the loads. The triangles reduce the forces to only compression and tension. Pratt: A Pratt truss includes vertical members and diagonals that slope down to the center. The inner diagonals are under
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the bridges loading capacity was 14.4kg‚ with an initial mas of 0.840kg. This gave a weight to strength ratio of 17.1 putting the group at 4th/8th position in class. From this it was learned the bridge held 14.4kg which is 140N therefore one Truss held 70N. These calculations helped us understand how our bridge coped with the forces and helped us answer the question of what caused our bridge to fail and where our bridge failed? Contents Abstract iii Contents 4 Introduction 5 Background
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Procedure for Fabrication & Assembly of Tower Structure Components A. Fabrication Procedure: 1. Prepare leveled horizontal bed before starting any activity. 2. Prepare marking of items as per approved cutting plan & check the marking before gas cutting. 3. All the items have to be cut by automatic gas cutting process as far as possible. 4. The items which need to be joined by welding to be prepared as per following process a. Cut the items as per suitable length.
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Alayna Patterson Graves 3B 2/4/2013 Bridge improvements Building a bridge was trial and error. This is not something you can do over night. When building the bridge I have to focus on the structure‚ details and actually putting it together right. The structure of my frame I made with the thicker wood‚ but it should have been placed different. Looking at the data from testing other bridges‚ the bridges who double bonded their wood at the bottom last a lot longer that the one piece of
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Building a Popsicle-Stick Bridge The goal: to build the strongest possible bridge to take a matchbox car‚ using wooden popsicle sticks. Constraints: The bridge must span a 55cm gap No more than 100 popsicle sticks may be used The sticks may not be cut Only white glue may be used Construction paper may be used for the deck only The test load is applied to a 4cm-wide section at the top of the arch. The test jig looks like this: (Well-built bridges can
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This report will include research on six common types of trusses along with reasons for choosing a particular type of truss. Introduction A team of six members were given a task of building a pasta bridge each with divided roles. Rolls and jobs were delegated by myself the team leader and are as follows: *Colin Nguyen was given the task of producing a full sized drawing of the truss design as well as taking part in the construction and designing of the pasta bridge. *Jason Lay was given the task
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8th ASCE Specialty Conference on Probabilistic Mechanics and Structural Reliability PMC2000-308 RELIABILITY ANALYSIS OF PRESTRESSED CONCRETE BRIDGE GIRDERS: COMPARISON OF EUROCODE‚ SPANISH NORMA IAP AND AASHTO LRFD A. S. Nowak‚ F. ASCE University of Michigan‚ Ann Arbor‚ MI 48109-2125 Nowak@umich.edu Chan-Hee Park YonseiUniversity‚ Seoul‚ Korea chpark@yonsei.ac.kr J.R. Casas University of Catalonia‚ Barcelona‚ Spain casas@etseccpb.upc.es Abstract The objective of this paper is to
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