A Study on Fatigue Behaviour of Beam Column Joint Under Low Earthquake Loading

• Main Author: Wan Zuraimi Bin Wan Hanafi, Wan Zuraimi
• Format: Final Year Project
• Language: English
• Published: Universiti Teknologi Petronas 2009
• Subjects: TA Engineering (General). Civil engineering (General)
• Online Access: http://utpedia.utp.edu.my/623/1/wan_zuraimi_wan_hanafi.pdf; http://utpedia.utp.edu.my/623/

This report is a brief discussion on the preliminary research conducted and basic understanding of the chosen topic, which is A Study on Fatigue Behaviour of Beam Column Joint Under Low Earthquake Loading. For this project, the structural component of beam-column joint in Malaysian standard school buildings are studied for its behaviour under seismic action. A three storey school building in Malaysia is chosen as a case study. The exterior and end joint of the school building is selected and samples of that joint are fabricated. Lab testing were conducted to investigate the properties of beam column joint when a cyclic loading is applied until it failure. The record of a 2007 Sumatra earthquake which had a magnitude of peak ground accelereation of 0.01 5g is obtained from Consortioum of Organizations for Strong-Motion Observation Systems (COSMOS) and used to investigate the time-history response of the school building. A commercial software, STAAD. Pro is used to analyse the response of the school building to the earthquake. Rainflow cycle counting in time domain is then examined by taking the time history of load from STAAD. Pro as the input. Number of cycles is determined from the time history. After the total number of cycles in both time and frequency domain approaches are found, Palmgren-Miner rule also known as linear damage theory, is used to estimate the fatigue life. From the study done, it is observed that the structure undergoing earthquake of 3.7 MMI experience minimal damage. The significance of this research would be important to evaluate the condition of the structure if it is able to withstand the shaking as it was not designed to perform the job.