Next-Gen

Types Of Bridges

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by dinosport56abac42d4835
Last updated 1 year ago

Discipline:
Science
Subject:
Engineering
Grade:
8

Test Glog

Irfan AjmeriMaria Alice MacielCamryn SperoMarcus Dalton1/31/16Core 3

Types of Bridges and the Loads on Bridges

Arch Bridge

Beam Bridge

Suspension Bridge

Truss Bridge

This is an arch bridgeIt has:1 bridge deck1 keystone2 abundements

This is a beam bridgeIt has:1+ piers/columns1 bridge deck2 abundements

This is a suspension bridgeIt has:2 towers-Cables-Suspenders 2 Abundements1 Bridge deck

This is a truss bridgeIt has:- A lattice system- A bridge deck- 2 abundements

In addition, shear stress may be in a bridge. If a load in inserted on the bridge at the left section of the bridge and the wind is blowing upward at the bridge from the bottom up, then shear force is in the bridge.

The force acting on this bridge is compression. It causes the bridge deck to squeeze that could result in a snap.

The two stresses are: Compression:Acts on the top part of the truss system. It causes those materials to squeeze together. Tension:Acts on the lower part of the truss system. It causes the materials here, ususally steel, to strech apart.

Advantages:-Used for medium distances-Handles a decent amount of stress-More lightweight than beam bridge-Will not tear -Can be used on beam and suspension bridges-Can be fortifiedDisadvantages:-Cannot hold over long distances

The three stresses are compression, tension, and torsion. Tension:The cables of the bridge are affected by the tension force. It causes them to stretch apart and could possibly tear them. Compression:Acts on the towers of the the suspension bridge. It causes the towers to kneel or crack inside due to pressure produced by loads. Torsion:Acts on the bridge deck of a suspension bridge. It is usually caused by high winds, so engineers might utilize truss systems to avoid the danger.

Advantages:-Used for long distances-Can handle a lot of pressureDisadvantage:-Expensive-Vunerable to wind gusts

Advantages:-Handles heavy loads-Able to be any length-Can be used to cross narrrow streets or wide riversDisadvantages:-Accumulates a lot of pressure

Advantages: - Used for short distances- Very strong and hard-Not expensive- Doesn require many materials.Disadvantages:- Unstable at long lengths- Relies on piers' stability (Could slip)

The two stresses are: CompressionAffects the top part of the bridge deckTensionThe tension is located on the colums and the lower part of the bridge deck.

Stresses/ Forces

Materials

Diagrams

Advantages/Disadvantages


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