International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 09 | Sep 2022
p-ISSN: 2395-0072
www.irjet.net
BEHAVIOUR OF REINFORCED CONCRETE BEAM COLUMN JOINT AT ELEVATED TEMPERATURE Utkarsh Agnihotri, Vinayak Mishra*, Sidharth Jain** (M.Tech. Structural Eng.), Civil Engineering Department, Institute of Engineering and Technology, Lucknow, Uttar Pradesh *Assistant Professor, Civil Engineering Department, Institute of Engineering and Technology, Lucknow, Uttar Pradesh **Assistant Professor, Department of Civil Engineering, HBTU, Kanpur, Uttar Pradesh --------------------------------------------------------------------***------------------------------------------------------------------------Abstract FINITE ELEMENT MODELING OF RC BEAM COLUMN JOINT To explore the behaviour of RC BCJ subjected to fire, a FEA was done. The study's goal was to look at fire resistance and fire danger after the fire had been extinguished. The maximum danger time, defined as the period between fire extinguishment and collapse of beam column junction was found. In this investigation the main objective is to check the behaviour of the BCJ when model is subjected to 50%- 70% of design load under elevated temperature in accordance to fire curve (ISO 834). The conclusion made in this work shows that the deformation is increases when design shear is applied in beam.
Finite Element Analysis (FEA) is a numerical approach for solving issues that would otherwise be difficult to solve. The numerical analytical studies were carried out using the commercial programme ANSYS. This software is a strong engineering simulation software package based on the finite element method that can address issues ranging from relatively easy linear analyses to the most difficult non-linear simulations. An ANSYS structural analysis is done in three steps
Introduction The general goals of fire protection are to reduce the hazards to life, society, property, and surrounding property in the event of a fire. Exposure to fire or high temperatures is a severe circumstance that causes changes in material qualities and, as a result, changes in overall behaviour. After the incident of WTC on 11 September 2001 (USA) and TAJ HOTEL on November 2011 an important aim is to prevent building from fire hazards. When a longitudinal member in structure subjected to elevated temperature is tends to elongate and distribution of temperature in adjacent column is studied by previous researchers.
Pre-processing P – Defining the finite element model
Analysis solver – solution of finite element model
Post processing of results.
Over the last two decades, advances in computer-aided engineering have been enormous, resulting in considerable benefits to various engineering organisations. The application of current finite element techniques in the building industry has permitted not only the introduction of unique and efficient building products, but also the creation of accurate design procedures. Here SOLID186 and SOLID187 elements are used to model RC column beam junction.
Normal fire has an impact on RC members by raising the temperature of the concrete mass. The mechanical properties of steel and concrete deteriorate as temperatures rise. They may also cause concrete member surface particles to explode. Concrete, on the other hand, can sustain significant damage when exposed to prolonged fire or extremely high temperatures. The goal of this paper is to check behaviour of RC BCJ under elevated temperature subjected to 40% -70% load of ultimate load.
© 2022, IRJET
|
Impact Factor value: 7.529
|
ISO 9001:2008 Certified Journal
|
Page 79