A Study on Improving the Vibration Performance of the Smart Moment Frame (Produced by PACO Company in USA) using the Proposed Brace under Modal Analyses in the Frequency

Mahdavi, Masoud; Babaafjaei, Abbas; Hosseini, SeyyedReza

doi:10.22034/asm.2024.14754.1022

A Study on Improving the Vibration Performance of the Smart Moment Frame (Produced by PACO Company in USA) using the Proposed Brace under Modal Analyses in the Frequency

Document Type : Original Article

Authors

Masoud Mahdavi ¹

Abbas Babaafjaei ²

SeyyedReza Hosseini ²

¹ PhD Student, K. N. Toosi University of Technology, Tehran , Iran

² MSc Student, K. N. Toosi University of Technology, Tehran , Iran

10.22034/asm.2024.14754.1022

Abstract

Reducing the vibration of the steel structure is one of the most important issues in evaluating its dynamic performance. There are various methods to reduce the vibration of the structure such as structural bracing systems. Modern concentrically braced systems
are among the latest methods used to reduce structure vibration. In the present paper, with the finite element method and ABAQUS software, the steel frame is improved with rhombus and Super X braces. The smart steel frames are manufactured by PACO
Engineering Company in the USA. The smart braced frames are investigated using modal analyses in the frequency domain. The results show that the rhombus bracing system improves the vibration performance in the PACO smart frames with the Super X
bracing system. The proposed rhombus bracing system in the smart moment frame reduces von Mises stress by 8.04%, displacement by 30.02%, natural frequency by 10.64%, and eigenvalue by 10.95% compared to the smart moment frame equipped
with a Super X bracing system. The results of the present paper are suggested to PACO Company in the USA and engineers in Iran as a means to improve the vibration of the steel moment frame.

Keywords

Vibration Performance

Smart Moment Frame

Modal analysis

PACO Engineering Company

rhombus Brace