Cantilever method
The Cantilever Method was devised to calculate and analyse shear forces and moments developed in different members, as beams and columns, of a frame or structure due to lateral loads. The lateral loads include wind load and earthquake load which must be taken into consideration while designing the buildings. The assumptions which are assumed in this method are that the point of contraflexure is located at the mid-point of the vertical members as well as horizontal members and that the direct stresses in the columns are proportional to their distances from the centriodal axis.[1] The frame is analysed in step-wise fashion, and the details can then be described by the diagram at the end. The method is quite versatile and can be used to analyse frame of any number of storeys or floors.
The position of the centriodal axis (the center of gravity line for the frame) is determined by using the areas of the end columns and intermediate columns. The method is considered as one of the two approximate methods (other being portal method) for indeterminate structural analysis of frames for lateral loads.[2]
See also
References
- ↑ S. Ramamrutham. Theory of Structures.
- ↑ "Nationa program for technology enhanced learning". Retrieved 15 December 2014.