Outline Enrichment Bridges Sample Vocabulary b uilt environment everything that is designed and built around us ie houses bridges roads parks hospitals schools churches etc ID: 838527
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1 Outline Salvadori Enrichment : Bridg
Outline Salvadori Enrichment : Bridges Sample Vocabulary b uilt environment – everything that is designed and built around us (i.e. houses, bridges, roads, parks, hospitals, schools, churches, etc.) bridge – a structure built to span physical obstacles such as a body of water, valley, or road, for the purpose of providing passage over the obstacle compressio n - The stress resulting from a pushing force on a structure force - a push or pull exerted on an object; measured in Newtons load - any force that act s upon a structure; weight structure – something built or constructed, such as a dam, bridge, or a building scale - a n indication of the relationship between the distances on a map )or diagram/model) and the corresponding actual distances tension - the pulling force that results in the lengthening of a material truss - a structure comprising one or more triangular units constructed with straight members whose ends are connected at joints referred to as nodes In this 12 - week module, students identify the characteristics that make a bridge unique, investigate the different types of bridges and their functions, and learn about the history of some of the world’s most prominent bridges. Students will also be able to identify the structural parts that make up different types of bridges, and understand the forces that enabl e each bridge to support a load. For their final proj ect, students will work in teams to develop a proposal that addresses a community problem and then construct a scale model of a truss bridge. Students will be able to : 1. explore the different types of bridges and their unique characteristics. 2. conduct scientific experiments to verify hypotheses and draw conclusions. 3. compare and contrast the advantages of different bridge types. 4. manipulate and use basic model making tools such as glue, tape, scissors. 5. work in cooperative groups to translate ideas and concepts from a two dimensional design to a three dimensional model. 6. design and construct a model of a truss bridge using ½” =10’ scale. Objectives Session 1 Introduction to Bridges and t he Built Environment Session 2 Structural Supports for Bridges: Constructing Paper Bridges Session 3 Tension, Compression, and Span Length Se ssion 4 Load Distribution: Why Bridges Stand Up Session 5 Arch Bridges Session 6 Truss Bridges Session 7 Suspension Bridges Session 8 Developing a Site Plan Session 9 Truss Bridge Design Challenge: Brainstorm & Cost Analysis Session 10 Truss Bridge Design Challenge: Construction Session 11 Truss Bride Design Challenge: Prototype Testing Session 12 Truss Bridge Design Challenge: Analysis & Redesign Outline