• Dr. V.Venkat Ramayya

Structural analysis comprises the set of physical laws and mathematics required to study and predict the behaviour of structures. Structural analysis incorporates the fields of mechanics and dynamics as well as failure theories. From a theoretical perspective, the primary goal of structural analysis is computation of deformations, internal forces and stresses. Analysis involves assessment of various types of loads coming on to the structure and computation of member forces.Various methods of analysis were proposed to determine the internal forces in elements of structures. Approximate methods are quite handy when compared to methods of exact analysis but however the member forces may not be accurate. It is a customary to carry out the lateral load analysis separately and results are superimposed with the results of analysis for gravity loads to arrive at final moments. This work aims to study the performance of Portal Method, which is used to determine member forces for lateral load analysis. The wind loads are estimated using stipulated codes from India. A computer program in C Language was developed to calculate the member forces adhering to Portal method and results of Staad.Pro were used to compare through statistical parameters. It was concluded from the study that the results of Portal method are in close agreement with the Staad. Pro results when the height to width ratio is greater than five.

Exact & Approximate Methods, Portal Method, Lateral Loads, C Programming.

"Analysis of multi-storey building frames for lateral loads using Portal Method –A Critical Review", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 4, page no.650-656, April-2018, Available :http://www.jetir.org/papers/JETIR1804130.pdf

"Analysis of multi-storey building frames for lateral loads using Portal Method –A Critical Review", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 4, page no. pp650-656, April-2018, Available at : http://www.jetir.org/papers/JETIR1804130.pdf