![]() ![]() Build model bridges and explain the difference between rigid and non-rigid materials used in bridge construction.ĭefine a simple design problem reflecting a need or a want that includes specified criteria for success and constraints on materials, time, or cost.Ĭlick to view other curriculum aligned to this Performance Expectation.Identify the structural elements of bridges.Identify materials used for bridges construction and explain the properties of these materials.Explain the need for bridges in our communities.Students also use mechatronic tools, specifically an ultrasonic sensor, to measure vertical displacement under the center of a bridge span when loaded, mimicking the instrumentation and testing performed in real-world civil engineering projects.Īfter this activity, students should be able to: Two different construction materials are used and compared. In this activity, students work as civil engineers to design, construct and test their bridge prototypes. The most common materials utilized in bridge construction include steel, concrete, wood and bricks. Material selection is another aspect of the design process. Civil engineers take into account the stresses and deformations in all the structural elements of the bridge during the design process. Each bridge type has its own structural design depending on service loads, expected traffic, weather, geographical position and seismic activity. ![]() A range of bridge designs exist, and the choice of which type of bridge to construct depends on space, bridge span, availability and cost of materials, and the budget. Copyright © 2012 Eduardo Suescun, Polytechnic Institute of NYU (left) Harvey Henkelmann, Wikimedia Commons (right)Ĭivil engineers design and construct bridges to meet transportation needs related to traffic, commuting time and over-passing. ![]()
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