EFFICIENCY OF MOMENT AMPLIFICATION PROCEDURES FOR THE SECOND-ORDER ANALYSIS OF STEEL FRAMES

Research article

Paschal Chiadighikaobi

DOI:

https://doi.org/10.18454/mca.2018.09.2

Issue: № 1 (9), 2018

Published:

13.01.2018

PDF

Paschal Chiadighikaobi

Peoples Friendship University of Russia (RUDN University)

Abstract

Beam-column is the member subjected to axial compression and bending. Secondary Moment was accounted for in the design and was additional moment induced by axial load. Comparing the results analysis from two computer aided software (SAP2000 and Java). The moment amplification factor Af was inputted in the Java code. Af did not create any change in the result outputs in the Java Code results. There are many different ways to apply amplification factors to first-order analysis results, each with various ranges of applicability. The results shown in this paper are the comparative results of the moment diagrams, axial forces, and shear forces. The type of steel used in the design and analysis is ASTM A992.

Keywords:

efficiency, moment, amplification, second-order, steel.

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References

American Institute of Steel Construction (AISC). Specification for Structural Steel Buildings (AISC 360-10). AISC. ‒ Chicago, IL. ‒ 2010.
American Institute of Steel Construction (AISC). AISC Steel Construction Manual. ‒ 13th ed- 2005.
Lian Duan, Iqbal S. Sohal and Wai-Fah Chen. Engineering Journal / American Institute of Steel Construction: Beam-Column Moment Amplification Factor. ‒ 4th Quarter, 1989.
Al-Mashary, F. and Chen, W. F, "Elastic Second-Order Analysis for Frame Design," Structural Engineering Report CE-STR-89-24 // School of Civil Engineering. Purdue University. 1989.
Goto, Y. and W. F. Chen, "Second-Order Elastic Analysis for Frame Design," ASCE Journal of Structural Engineering // Vol. 113 (No. 7): pp. 1501-19.
Geschwindner-A Practical Look at Frame Analysis, Stability and Leaning Columns. AISC.
Hewitt, C. M. “Stability Analysis It’s Not As Hard As You Think” // Modern Steel Construction. ‒ September. ‒ 2008.
Donald W. White and Jerome F. Hajjar (fourth quarter /1991) Engineering Journal / American Institute of Steel Construction : Application of Second-Order Elastic Analysis in LRFD: Research to Practice. ‒ 1991.
Williams A. Steel Structures Design: ASD_LRFD-McGraw-Hill. ‒ 2011.
Kanchanalai T. "The Design and Behavior of Beam-Columns in Unbraced Steel Frames": AISI Project No.189, Report No. 2. Civil Engineering / Structures Research Lab. ‒ University of Texas at Austin. ‒ 1977.
Chiadighikaobi P.C. Theory and Implementation of Moment Amplification - Method for The Second-order Analysis of Steel Frames. ‒ 2018.
Lawrence G. Griffis, Donald W. White, AISC Design Guide 28 - Stability Design of Steel Buildings-konkuryha.ir. – 2013. ‒ 1:3-6.