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When a bridge twists due to wind or uneven loads what are the forces act on the bridge materials?
When a bridge twists due to wind or uneven loads, it experiences torsional forces that create shear stress in the materials. These forces can lead to bending moments, resulting in flexural stress across the bridge's structural members. Additionally, the uneven distribution of loads can induce axial forces, which can either compress or tension the materials, further impacting the bridge's stability and integrity. Overall, these forces must be carefully analyzed in the design to ensure the bridge can withstand such conditions.
Name and describe three types of loads that must be considered in bridge construction?
In bridge construction dead load, live load, and dynamic load must be considered. Dead load is the weight of the bridge itself. Live load is the moving weight on the bridge. Dynamic load comes from outside forces like wind and vibrations.
How does an arch bridge transfer loads from the bridge to the ground?
Thats what iwant to know!
Which bridge design is most earthquake resistant?
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 forces act upon arch bridges?
Tension and compression are the two forces that act upon a bridge.
What is the point where two adjacent units of the bridge are joined together known sa?
The point where two adjacent units of a bridge are joined together is known as a joint or a connection. It serves to transfer loads and forces between the individual components of the bridge to ensure structural integrity and stability.
What is the typical span for a bridge designed to accommodate heavy traffic loads?
The typical span for a bridge designed to accommodate heavy traffic loads is between 100 to 200 feet.
What loads and forces is designed for the London bridge to withstand?
The London Bridge is designed to withstand various loads and forces, including live loads from vehicles and pedestrians, dead loads from its own weight, and environmental loads such as wind, seismic activity, and thermal expansion. The bridge's structure must also accommodate dynamic forces from traffic and potential impacts from boats. Additionally, considerations for water flow and potential flooding are integral to its design for safety and durability.
How can bridges with stand heavy winds and rain?
Short answer: they are designed to do so. Bridge engineers calculate the forces incurred by the traffic on a bridge and the weight of the bridge itself: these act in the vertical direction, more or less. But we also calculate an assumed load from wind acting horizontally against the sides of a bridge. This is estimated to be so many pounds per square foot of bridge structure and vehicles on the bridge. What is called secondary support members are designed to accept these loads and conduct them to the bridge ends. On some bridges, you can see a series of "X" shaped members under the bridge deck. These are the secondary supports that keep the bridge from moving sideways under wind and traffic loads. Other bridges may not have these members, but the structure is designed to carry the load in another manner.
What are examples of dynamic loads?
A Person walking on a bridge, wind, cars on a bridge. Basically anything that doesn't stay on that structure forever.
How can a bridge be designed to withstand certain loads and destructive forces?
its built well durh
What is difference between maxwell bridge and hay bridge?
A Maxwell Bridge , also known as the Maxwell-Wien Bridge, is an AC bridge circuit used for measuring an unknown inductance by balancing the loads of its four arms, one of which contains the unknown inductance. A Hay Bridge is an AC bridge circuit used for measuring an unknown inductance by balancing the loads of its four arms, one of which contains the unknown inductance. One of the arms of a Hay Bridge has a capacitor of known characteristics, which is the principal component used for determining the unknown inductance value.
