"The Shape and Structure of Bridges" Shape and Structure PPT Courseware

Description

"The Shape and Structure of Bridges" Shape and Structure PPT Courseware

A bridge is a special structure built across a river, lake, strait, valley or other obstacle.

Do it

Let us simulate building a "steel cable bridge" and experience the tension of the "steel cable".

Use wooden boards or corrugated cardboard as the "bridge deck", use ropes as the "steel cables", and use the backs of chairs as the "bridge towers" to build a "steel cable bridge". Place the schoolbag on the cardboard and tighten the rope to varying degrees to feel the amount of force.

The two of them pulled the rope at the same time to lift the "bridge".

In what direction are we pushing?

Class summary

Bridges have many different structures, and bridges can be divided into many types, such as arch bridges, straight beam bridges, steel frame beam bridges, steel cable bridges (suspension bridges and cable-stayed bridges), etc.

The shape and structure of the bridge are appropriate to its function. Some bridges combine multiple structures into one.

Feel and appreciate the beauty of the shape and structure of the bridge.

Classroom testing

1. True or False Questions (mark √ if correct, × if incorrect)

1. All bridges have the bridge deck above the arch. ( )

2. The span of a steel cable bridge can be very large. ( )

3. The bridge deck is under the arch and can pull the arch feet to offset the external thrust of the arch. ( )

4. Cable bridges are divided into cable-stayed bridges and suspension bridges. ( )

5. The bridge tower is built very high to reduce the tension of the steel cable. ( )

2. Multiple choice questions

1. The positional relationship between the deck and the arch of an arch bridge can be ( ).

A. The entire bridge deck is on the bridge arches B. The entire bridge deck is under the bridge arches

C. The bridge deck can be on, in the middle or below the bridge arch.

2. The Jiangyin Bridge on the Yangtze River belongs to ( ).

A. Flat bridge B. Cable bridge C. Arch bridge

3. The steel cables of Jiangyin Bridge must withstand ( ) tons of tension.

A. 46,000 B. 64,000 C. 640,000

4.The bridge deck of Zhaozhou Bridge is in ( )

A. Above the arch B. Below the arch C. Middle of the arch

5. People use steel cables to build steel cable bridges, which greatly increases the bridge’s ()

A. Tension B. Span C. Bending resistance

Keywords: Shape and Structure Teaching Courseware, Bridge Shape and Structure Teaching Courseware, Educational Science Edition Sixth Grade Science PPT Courseware Download, Sixth Grade Science Slide Courseware Download, Shape and Structure PPT Courseware Download, Bridge Shape and Structure PPT Courseware Download ,.PPT format;

For more information about the "Shape and Structure of the Bridge" PPT courseware, please click on the "Shape and Structure ppt Bridge of the Shape and Structure ppt" tab.

"Shape and Structure of Bridges" Shape and Structure PPT teaching courseware:

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"Shape and Structure of Bridges" Shape and Structure PPT Download:

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"Shape and Structure of Bridges" Shape and Structure PPT:

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File Info

Update Time: 2024-09-26

This template belongs to science courseware Science Edition for Sixth Grade Science Volume 1 industry PPT template

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