Analysis of Beam-Column Joint in a Pre-stressed Concrete Structure using Finite Element Method

Abstract

Pre-stressed concrete is the type of concrete in which internal stresses of a suitable magnitude and distribution are induced so that the stresses resulting from external loads are counteracted to a desired degree. Pre-stressed concrete structures exhibit high strength and durability. These types of structures are very popular in use in bridge deck systems and culverts. However, various elements of pre-stressed concrete member undergo different types of stresses. The weakest element of these being beam column joint. The beam column joint in pre-stressed concrete member undergoes direct compression as well as bending compression and tension. This peculiarity of the beam column joint makes it vulnerable to failure. It was found that many authors studied the analysis of pre-stressed concrete structures using Finite Element Analysis. However, they have not included the beam column joint in their analysis. Hence, this study emphasized on this aspect of analysis of prestressed concrete structures. This paper presents the review of literature on 'Analysis of Beam Column Joint of a Pre-stressed Concrete Structure Using Finite Element Analysis'. It is been also observed from the existing literatures that Finite Element Method (FEM) is widely used for analysis of Pre-stressed Concrete Structures. The FEM is capable of incorporating complex boundary conditions and material non-linearity. The results of FEM are also comparable with that of hand calculations. Also the structure can be finely idealized using FEM which enhances accuracy of analysis. This will economize the structural sizes of Pre-stressed Concrete Element. The literature also indicates that the various researchers have used ANSYS, MIDAS and Stadd-Pro for the analysis of Prestressed Concrete Structures using FEM. This was an important observation and hence the present study aims to use ANSYS for the analysis of Beam Column joint using FEM. The present study aims at reviewing various research efforts undertaken by authors in the past. The study also aims at finding a gap in literature on analysis of beam column joint in a pre-stressed concrete member using Finite Element Analysis.

Finite element method and P-delta analysis of G+10 multistorey frame building structure by using etabs software.

“…The results stated that the changes in the forces due to the presence of rigid diaphragm is effective and results concluded that due to introduction of pretension Ing slab, structure become more stable and stiffer in comparison. It can be said that P-delta analysis results in observing overturning moment and rotational forces using analysis tool Ansys [4].…”