Table 8.4.2.2
AITC Deflection Limits for Uses Where
Increased Floor Stiffness is Desired
Used with Permission
Use ClassificationApplied Load Only
Applied Load + Dead LoadaFloor Beams- Commercial, Office & Institutional- Floor Joists, spans to 26 ftb - LL < 60 psfL/480L/360 - 60 psf < LL < 80 psfL/480L/360 - LL > 80 psfL/420L/300- Girders, spans to 36 ftb - LL < 60 psfL/480L/360 - 60 psf < LL < 80 psfL/420L/300 - LL > 80 psfL/360L/240aThe AITC includes a modifier on DL depending on whether or not the timber is seasoned.
bFor girder spans greater than 36 ft and joist spans greater than 26 ft, special design considerations may be required such as more restrictive deflection limits and vibration considerations that include the total mass of the floor.
The span length, L, in the limit equations above is taken as the distance between center of supports. For cantilever beams, a value equal to twice the actual cantilever length is generally used for the L in determining the deflection limits
1.50 meter from the support is the max. safe length cantilever beam
A cantilever beam is often used for making balconies in residential architecture. A cantilever beam is a beam that is supported only one of its ends while the open end can support a certain weight.
A Cantilever bridge is built from iron, structural steel and prestressed and reinforced concrete. These materials make the trusses, box girders, vertical columns and the canitlever itself.
cantilever beam,contineous beam,fixed beam,simply supported beam
A cantilever bridge could be said to be a variation on the basic beam bridge. The roadway of the bridge is held in place by cantilevers, which are long structures, or arms, projecting out into the water, but which are anchored on only one end. A diving board is a good example of a cantilever: although anchored on only one end, it can support a lot of weight. In a cantilever bridge, there are the outer beams, the cantilevers, and the central beam. The outer beams are attached firmly to shore, while the cantilevers are then attached to these outer beams. The cantilevers projecting out from the outer beams, or supporting piers on the opposite shores, are then joined by a central beam. The Forth Railway Bridge in Scotland and the Quebec Bridge in Canada are both famous examples of cantilever bridges.
1.50 meter from the support is the max. safe length cantilever beam
A cantilever deck is a deck that is suspended by joists that stick out of the structure. The distance the deck sticks out of the structure is one-third the total length of the cantilever beams that enter the structure. Usually these beams are bolted to (or sistered) to the second story floor joists or the roof trusses. Onto these beams are attached the floorboards that make the surface of the deck. And onto those the railings are attached. Hope that helps :-)
The basic principle of a cantilever bridge is that the bridge is supported entirely at one end, the rest being held in place by steel pillars or beams.
A cantilever beam is often used for making balconies in residential architecture. A cantilever beam is a beam that is supported only one of its ends while the open end can support a certain weight.
A Cantilever bridge is built from iron, structural steel and prestressed and reinforced concrete. These materials make the trusses, box girders, vertical columns and the canitlever itself.
cantilever beam,contineous beam,fixed beam,simply supported beam
A cantilever bridge could be said to be a variation on the basic beam bridge. The roadway of the bridge is held in place by cantilevers, which are long structures, or arms, projecting out into the water, but which are anchored on only one end. A diving board is a good example of a cantilever: although anchored on only one end, it can support a lot of weight. In a cantilever bridge, there are the outer beams, the cantilevers, and the central beam. The outer beams are attached firmly to shore, while the cantilevers are then attached to these outer beams. The cantilevers projecting out from the outer beams, or supporting piers on the opposite shores, are then joined by a central beam. The Forth Railway Bridge in Scotland and the Quebec Bridge in Canada are both famous examples of cantilever bridges.
no
Stress occur everywhere in the beam. Maximum occur at mid span and at support of simply supported beams and cantilever beams respectively - M. Velsamy, Mobile 9884585625
you can generally use 180 degree hooks, to provide enough anchorage in slabs with no edge beams. use the Ldh formula (12.5.2) of ACI 318-11
You can find these diagrams online. A simple image search can help to bring them up and you can choose the one that best meets your needs.
The Niagara Cantilever Bridge or Michigan Central Railway Cantilever Bridge