Types of Support,Beam

                                                               Types of supports:

1) Simple supports

2) Roller supports

3) Hinged or pinned supports

4) Fixed supports

1) Simple supports:

 

Simple supports are those supports, which exert reactions perpendicular to the plane of support. It restricts the translation of body in one direction only, but not rotation.

2) Roller supports:

 

       Roller supports are the supports consisting of rollers which exert reactions perpendicular to the               plane of the support. They restrict translation along one direction and no rotation.

3) Hinged or Pinned supports:

 

Hinge d supports are the supports which exert reactions in any direction but for our convenient point of view it is resolved in to two components. Therefore hinged supports restrict translation in both directions. But rotation is possible.

4) Fixed supports:

Fixed supports are those supports which restricts both translation and rotation of the body. Fixed supports develop an internal moment known as restraint moment to prevent the rotation of the body.

1) Simply supported Beam:

 It is a beam which consists of simple supports. Such a beam can resist forces 

      normal to the axis of the beam. 

2) 

     

2) Continuous Beam:

  It is a beam which consists of three or more supports.

 

      3) Cantilever beam:

       It is a beam whose one end is fixed and the other end is free.

4)      4) Overhanging Beam:

        It is a beam whose one end is exceeded beyond the support.