"Building Bridges" Architecture and Shape PPT Courseware 2

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"Building Bridges" Architecture and Shape PPT Courseware 2

Say something based on the content of the picture

1. How many basic types of bridges are there? What are the bridges called?

bridge

1. Flat bridge

Such as: Nanjing Yangtze River Bridge, Donghai Bridge

2. Cable-stayed bridge

Such as: Jiangyin Yangtze River Bridge, Wuhan Second Yangtze River Bridge

3. Arch bridge

Such as: Zhaozhou Bridge

Experimental requirements:

1. When building a beam bridge, use cardboard as the deck and wooden blocks as the piers, and the distance between the piers should be consistent.

2. When building an arch bridge, another piece of cardboard should be made into an arch shape and placed under the flat bridge, with the top of the arch touching the bridge deck.

3. When building a suspension bridge, first tie two ropes of equal length to the chopsticks, and then tie the ropes to the center of the cardboard.

4. The same weight should be selected for the three bridges in order to compare the load-bearing capacity of various bridges.

5. Keep good records.

Experiment summary:

1. Arch bridge: The strongest and most suitable for distributing the weight of the entire bridge deck.

2. Cable-stayed bridge: stronger than flat bridge.

3. Flat bridge: The least stable, its bridge deck has no supporting structure.

Experimental results:

The load-bearing capacity of a bridge is related to its shape.

1. Slab bridges, arch bridges, and cable-stayed bridges are classified according to the type of bridge ( ).

2. The bridge is basically composed of ( ) ( ).

3. The bearing capacity of the bridge is related to the ( ) of the bridge.

4. ( ) has the greatest endurance, ( ) has the middle endurance, and ( ) has the smallest endurance.

Thought questions:

Since arch bridges have the greatest bearing capacity, why are most modern bridges cable-stayed bridges?

Keywords: Architecture and Shape Teaching Courseware, Building Bridges Teaching Courseware, PPT Courseware Download for Fifth Grade Science Volume 1, Fifth Grade Science Slide Courseware Download, Building and Shape PPT Courseware Download, Building Bridges PPT Courseware Download, .PPT format;

For more information about the PPT courseware "Building Bridges Architecture and Shape", please click the "Building Bridges ppt Architecture and Shape ppt" tab.

"Building Bridges" Architecture and Shape PPT Courseware:

"Building Bridges" Architecture and Shape PPT Courseware Classification of bridges according to shape: flat bridge, arch bridge, suspension bridge According to material: wooden bridge, brick bridge, stone bridge, steel bridge, concrete bridge, reinforced concrete bridge According to length: extra large bridge , big bridge, middle bridge, small bridge according to whether the bridge body is alive...

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Update Time: 2024-09-09

This template belongs to science courseware People's Education Press Fifth Grade Science Volume 1 industry PPT template

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