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truss bridge project f10

truss bridge project f10 - TRUSS BRIDGE DESIGN PROJECT ENES...

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TRUSS BRIDGE DESIGN PROJECT ENES 102 Fall 2010 The Truss Bridge Design Project to be undertaken this semester is a hands-on project that will consist of the following steps: Each team will design and analyze a truss bridge, to withstand a maximum applied load of P ≤2000 lb. Teams will then purchase materials and build a truss bridge using this configuration. On the specified test date (see below), all teams will bring their truss bridges to the testing area for a design competition. Each bridge will be loaded in 3-point bending until it either breaks or the load reaches 2000 lb, whichever occurs first. The truss bridge that exhibits the highest strength-to-weight ratio will be declared the winner. Competition grades for the other trusses will be assigned accordingly. Every team must turn in a final design report (see details below). The total project grade will be based on both the competition results and the final report. Materials: Each team will need to purchase as much material as necessary to construct their truss bridge. The required building material for all truss structural members is wood (any type). One possibility is general purpose pine, found in the molding section of Home Depot, Lowes, or other building supply stores. Another possibility is balsa. Balsa wood sticks can be purchased online some companies are: www.nationalbalsa.com www.balsasupply.com www.specializedbalsa.com www.balsawoodinc.com Note that delivery times vary, so orders should be placed as soon as possible. You might also be able to find balsa wood sticks at a local hobby shop. Gusset plates, as shown on page 209 of the textbook, are required at every joint for connecting the truss members. Glue, epoxy, nails, screws, or bolts can be used for attaching the truss members to the gusset plates. McMaster-Carr (www.mcmaster.com ) is an online supply store that sells adhesives and tools useful for constructing your trusses. In-stock items shipped via UPS Ground usually arrive the next day. You can also find a wide variety of adhesives and tools at Home Depot or Lowes. You MUST build your truss bridges outside of class, using your own tools and facilities. The Keystone woodshop (JMP 1210) will be available for your use at certain times (to be announced).
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