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There are many factors to consider in this question and many types of bridge structure.
The structure of a bridge is designed to resist the expected loads that will act on it.
The main loads that usually act on a bridge are:
- gravity (an acceleration downwards towards the centre of the Earth) on the bridge itself,
- gravity on any objects on the bridge,
- wind loads on the bridge ( can be in any direction but depends on exposure)
- earthquake loads
The loads experienced by the bridge in an earthquake can be as strong as or stronger than gravity (9.8ms-2), and act in many directions changing rapidly.
A bridge designed to resist these therefore needs to have a structure that can resist significant forces in many directions, (to picture these forces it may help to imagine a model of the bridge being tossed from hand to hand, twisted and shaken), or it can be isolated from the earthquake forces by allowing the earth to move up down and around while the bridge sits quietly.
If we look at the example of a simple suspension bridge for one person to walk over, made from some steel cables and wire mesh:
- it is light and will not need to resist huge forces (Force= mass.acceleration),
- it has the advantage of the elasticity of the steel,
- it has the disadvantage that if it is not under much tension ( ie. has slack cables), these may be snapped rapidly in different directions in an earthquake, (picture a whip being used) which will put big loads on them.
What else can I help you with?
Which foundation material is most stable during earthquake shaking?
Reinforced concrete is generally considered the most stable foundation material during earthquake shaking. The reinforcement helps to distribute forces and provide flexibility to withstand the dynamic loading caused by earthquakes. Proper design and construction are essential to ensure the stability of the foundation in earthquake-prone areas.
What is the name of the most recent major earthquake in the world?
japans earthquake. it led to the tsunami. so it is the most severe,and most major earthquake.
Which point refers to the epicenter of an earthquake?
The epicenter of an earthquake is the point on the Earth's surface directly above where the earthquake originated, known as the focus. It is the point where the seismic waves are most intense and where the effects of the earthquake are often most severe.
Where did the worlds most severe earthquake occur and when?
In Chile in 1960, a 9.5 on the Richter scale
Which of the following minerals is most resistant to being scratched?
Diamond is the most resistant to being scratched as it is the hardest mineral on the Mohs scale with a rating of 10.
What material is the most earthquake resistant?
Granite
What materials might withstand an earthquake?
Stones for support, hollow cement bricks, reinforced steel frame
Which layer of a rock is most resistant to an earthquake?
The shorter the outcrop, or the lowest it is towards the bottom, the less resistant it is.
Has there ever been any bridge that has survived a earthquake?
Many bridges survive earthquakes. Most earthquakes are small or moderate and do very little damage.
What is special about the design of the harbor bridge?
The design is special because it is a single steel arch. Sydney's harbor bridge is the most famous/well known bridge of this design type.
What kind of bridge is most damaged during an earthquake?
apple custard
What did the San Francisco earthquake do?
It caused a huge fire that burned down the wooden (non fire resistant) buildings. The fire caused most of the damage, not the earthquake.
Why was the London bridge design chosen?
Because it was the most suitable for the job.
What geometric shapes are strongest or most stable in bridge design?
triangle
How does using the design process and building model help you understand the type of bridge will hold the most weight?
to help you its reallyy easy because the bridge are very strong and the bridge looks very good
What is the most revolutionary arch bridge opened in 1994?
The most revolutionary arch bridge opened in 1994 is the Lupu Bridge in Shanghai, China. It is the world's longest steel arch bridge and features an innovative design with a unique shape and structural system that sets it apart from traditional arch bridges.
Is there a water-resistant GPS golf ranger finder?
Most GPS golf ranger finders are normally water-resistant or waterproof and have a design that is fully coated for any temperature climates or elevations on the golf course.
