Fatigue Analysis of Beam Column Joint

Whenever a material is exposed to cyclic stresses and strain at extremelystresful concentration loads, it undergoes a process of persistent plastic deformation termed as fatigue. Damage from the fatigue process is gradual and typically irreversible. To determine a structural member’s satisfactory performance level under cyclic loading, a fatigue analysis is conducted. It provides an estimate of the member’s performance in each of the three stages of fatigue failure. It denotes that data on crack start, crack propagation, and ultimately failure likelihood for a particular material will be provided via fatigue study. The connection between the columns and beams is critical in a reinforced concrete moment-resisting frame. It experiences strong forces during violent ground shaking, and its actions greatly affect how the structure reacts. Development length is required to support the beam and minimize the potential that it will emerge from the concrete column. As a result it supports the reinforced beam embedded in concrete column. The joint behavior has been examined for four distinct aspect ratios; 0.625, 0.9, 1.13, and 2.0 under mild, medium, heavy, and extreme loads. The study aims at evaluating the trend with eight samples with respect to different l/d values and aspect ratios. Various software available in the market to study the fatigue behavior under cyclic loads. A finite-element simulation developed in Ansys Workbench is used to analyze the body’s fatigue resistance and produce results for the fatigue resistance’s maximum values. Additionally, the stress concentration was located in it.