The weight of the stuff on the structure is called the live load. Things that move in or on a structure, like people and cars, are examples of live load. A live load causes compression on the bridge deck. If you apply too much weight, the beam will fail because it can't support the heavy weight of the live load above it. To strengthen it, thicker beams are used. Then, it is less likely to bend. Thick beams are used in structures that experience live and dynamic loads.
a live load bridge is a truck or a weight that after the bridge is made then you put the weight on the bridge and see if it holds!
Trucks, etc.
A dead load is the weight of the bridge or vehicle or building excluding the people or objects in it(An example is: If you were standing on a bridge all alone you would be the live load and the bridge itself would be the dead load)
A dead load is the weight of the bridge or vehicle or building excluding the people or objects in it(An example is: If you were standing on a bridge all alone you would be the live load and the bridge itself would be the dead load)
The dead load is the weight of the bridge itself. The live load is things like traffic, wind, rain, etc. The dynamic load are things like earthquakes, big gusts of wind, and other things.
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.
The dead load on the Tower Bridge refers to the permanent static weight of the bridge's structure, including its materials, such as steel, concrete, and masonry. This load is crucial for engineers to calculate as it affects the overall stability and design of the bridge. The dead load also includes any fixed components, such as walkways and decorative elements. Accurate assessment of the dead load ensures that the bridge can safely support additional live loads, such as traffic and pedestrians.
The Sidney Lanier Bridge, which spans the Altamaha River in Georgia, has specific design criteria for its loads. The dead load typically includes the weight of the bridge itself, including its structure and materials, while the live load accounts for the weight of vehicles and pedestrians using the bridge. The design specifications typically adhere to standards set by the American Association of State Highway and Transportation Officials (AASHTO), which may specify a live load of 80 to 100 pounds per square foot for vehicular traffic. For precise figures, consulting engineering documents or bridge design reports would provide the exact load specifications.
In engineering terms, dead load refers to the unchanging weight of a structure itself, plus any other load that may permanently be a part of the structure. On a bridge, for example, the main dead load would be the weight of bridge, and there would also be the weight of the abutments and perhaps a tollbooth.
What are the basis of a bridge load limit?
The load of a bridge is the amount of weight that can be distributed throughout the bridge without collapsing. Engineers take into effect, wind, rain, and earthquakes when calculating the load.
The load that a bridge must support includes its own weight (dead load), the weight of vehicles and pedestrians using it (live load), environmental factors such as wind and snow (dynamic load), and any potential seismic forces in earthquake-prone areas. Additionally, the load may vary depending on the bridge's design, materials used, and specific location. Engineers calculate these loads to ensure the bridge can withstand various conditions throughout its lifespan. Proper load assessment is crucial for safety and structural integrity.