Building Big Bridges by John Lockyer

Author:John Lockyer
Language: eng
Format: epub
Publisher: Flying Start Books Ltd
Published: 2021-01-25T00:00:00+00:00

7

This beam bridge in Sweden carries vehicles

across the water. It makes the journey much

shorter for the traffic.

8

An arch bridge is built from stone, brick, concrete

or metal. Huge blocks and piers are placed at each

end and sometimes in the middle of the bridge.

After cranes lift the arches onto the blocks, a road

is built between the piers.

9

An arch bridge is strong because all the weight on

the arch is spread along the curve to the ground.

This stone arch bridge in France was built more than

two thousand years ago. There were no cranes to

help with bridge-building then!

arch bridge

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.