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Instead of pushing straight down, the load of an arch bridge is carried outward along the curve of the arch to the supports at each end. The weight is transferred to the supports at either end.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoBeam bridges support weight or load on them by compressing to the area of the load pushing on the beams and the beams creating a reaction force that pushes back up on the load.
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How does point loading affect beam sizing versus uniform loading with point load in center of beam?
The moment of a beam is twice that for central load vs uniform load for a simple support beam; hence it needs twice the section modulus for sizing; for fixed ends the moment is 50% higher for central load vs uniform load
What is the support reaction at prop for a propped cantilever beam subjected to uniformly distributed load?
conclusion reaction and moment for propped cantilever beam
What is advantage of beam in building?
to help support the building. also to build up the building bigger or taller depending on the size of the beam.
What are loads on a beam?
It all depends on the dimensions of the steel beam
What size I-beam is required for a basement beam that needs to span 25 feet and will support 2x10 floor joists spanning 12 feet?
These calculations are not difficult, but you must know the load (including the floor weight) that will be carried. And the deflections that the appropriate building regulations allow.
What is an arch bridge bridge?
Arches are among the oldest forms of structural support. Unlike beam bridges, arch bridges are curved. The arch carries the weight outward along the curve to the supports on each end of the bridge, called abutments. The abutments carry the load and stop the bottom of the bridge from spreading out.
What happens when a load is applied to the beam?
when the load is applied in the beam then deflection takes place. the nature of the deflection depends on the support provided on it
How does point loading affect beam sizing versus uniform loading with point load in center of beam?
The moment of a beam is twice that for central load vs uniform load for a simple support beam; hence it needs twice the section modulus for sizing; for fixed ends the moment is 50% higher for central load vs uniform load
The names of three forces that affect all bridges?
the weight, the load, and the weather
How do you remove a load bearing wall?
Support the load whatever it is, roof, second floor, generally by putting a temporary beam under the joist inside of the existing wall, tear the wall out and put in a beam to carry the load. How big the beam needs to be depends on what the load is and how long the span is. Support the beam on each end and remove the temporary beam. These are the general steps, each project is going to be slightly different and has to be figured on it's own.
What is the support reaction at prop for a propped cantilever beam subjected to uniformly distributed load?
conclusion reaction and moment for propped cantilever beam
What is advantage of beam in building?
to help support the building. also to build up the building bigger or taller depending on the size of the beam.
What are loads on a beam?
It all depends on the dimensions of the steel beam
What is the live of load of a bridge?
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.
What size I-beam is required for a basement beam that needs to span 25 feet and will support 2x10 floor joists spanning 12 feet?
These calculations are not difficult, but you must know the load (including the floor weight) that will be carried. And the deflections that the appropriate building regulations allow.
What is a needle beam and what is it used for?
used to support the load above an opening cut into an existing masonry wall
What is a beam bridge?
A beam or "girder" bridge is the simplest and most inexpensive kind of bridge. According to Craig Finley of Finley/McNary Engineering, "they're basically the vanillas of the bridge world." In its most basic form, a beam bridge consists of a horizontal beam that is supported at each end by piers. The weight of the beam pushes straight down on the piers. The beam itself must be strong so that it doesn't bend under its own weight and the added weight of crossing traffic. When a load pushes down on the beam, the beam's top edge is pushed together (compression) while the bottom edge is stretched (tension). The farther apart its supports, the weaker a beam bridge gets. As a result, beam bridges rarely span more than 250 feet. This doesn't mean beam bridges aren't used to cross great distances-it only means that they must be daisy-chained together, creating what's known in the bridge world as a "continuous span."
