About This Chapter
Elements of Bridges - Chapter Summary
Our instructors outline the elements of bridges in this interesting chapter. You'll review the different structures found in bridges, as well as their purpose and design. These professionally created lessons are followed by short quizzes you can use to make sure you're ready to move on to new topics. You're welcome to move at your own pace as you work through the chapter, going back to review the lessons as many times as needed. If you have questions along the way, our instructors are available to help. Once you complete this chapter, you should be ready to:
- Give an example of a bridge abutment
- Identify some famous covered bridges
- Explain the architectural purpose of a covered bridge
- Detail the design of a drawbridge
- Discuss the design of a trestle bridge
1. Bridge Abutment: Design, Types & Examples
A bridge's abutment is a support structure used to distribute weight and connect it to an embankment. This lesson introduces the component parts, the four primary types, and six additional classifications used to further define the abutments.
2. Covered Bridges: History & Famous Bridges
Why do some bridges have roofs? Have you ever been on a covered bridge? In this lesson, explore the history of covered bridges and learn about some famous examples.
3. Drawbridges: Definition, Design & Types
Have you ever had to wait for a drawbridge to lower for you to drive across it? Did you know what kind of bridge it was? In this lesson, explore different kinds of drawbridges.
4. What is a Trestle Bridge?
Trestle bridges are used throughout the world for automobile and railroad crossings. In this lesson, we will learn about the characteristics of a trestle bridge and several examples around the globe.
5. Why are Covered Bridges Covered?
There's more to a covered bridge than the name simply implies. In this lesson, we'll consider the structural and practical reason for covering bridges and see how this defines their usage.
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