Simply supported beams

simple supported beams with shear force and bending moments diagrams, different types of loading conditions, everyday scenarios of simply supported beams, advantages and disadvantages of simple supported beams

1. Simply Supported Beams Done by:- Crystal Mahabir, Vickash Boodram , Hanson Ramdath , Krista London, Adrian Whiteman, Anthony Abdool

2. What are beams? Beams are generally horizontal structural members which transfer loads horizontally along their length to the supports. Beams are used for resisting vertical loads, shear forces and bending moments.

3. Beams are classified into four main types: Simply Supported Beams Fixed Beams Cantilever Beams Continuously Supported Beams

4. Simply Supported Beams A beam is a structure element whose primary functions is to resist loads . Beams are classified by their manner of support. A simply supported beam is supported in both ends. Simply Supported Beams undergo Shearing and Bending

5. Shear Force Shear force with respect to a beam, is the force in the beam acting perpendicular to is longitudinal x-axis. Shear force can be calculated and illustrated on a shear force diagram.

6. Bending Moments The bending moment acting at a point on a beam is the resultant turning moment due to all the forces acting to one side of the point. Two types of bending moments; Sagging bending moments (Positive) and Hogging bending moments (Negative). Bending moments in the beam can be calculated and illustrated on a bending moment diagram.

7. Various loading Conditions Loads are forces which causes stresses, deformation and displacements when applied to a structure. There are several various loading conditions for simply supported beams.

8. Uniformly Distributed loading case.

9. Centre Loading Case

10. Intermediate Loading Case.

11. Two Equidistant Loading Case

12. Example of Simply Supported Beams in a Everyday Scenario . The most common example of simply supported beams are; bridge girders, post and lintel structure.

13. Advantages It is quick and simple to analyse a simple supported beam Simply supported beams are quick and simple to install A simply supported beam has no ability to transfer moments at its supports. Simply supported beams require no complicated connection to the supporting member Simply supported beams transfer fewer loads into a central supporting member than a continuous beam.

14. Disadvantages A disadvantage of simply supported beams is the reduce ability to resist bending loads when compared to fixed end beams. The maximum positive moments in simple supported beams are always higher than the maximum positive moment in fixed end beams. As a result, the size of the simple supported beam require typically is larger than if a fixed end beam was used.