Compressive Column Load Identification in Steel Space Frames Using Second-Order Deflection-Based Methods

Marco Bonopera*, Kuo Chun Chang, Chun Chung Chen, Tzu-Kang Lin, Nerio Tullini

*Corresponding author for this work

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

This paper presents a comparison of two static nondestructive methods used to assess compressive loads in columns of steel space frames. The first method requires knowledge of the flexural rigidity of the column under investigation, whereas the second method requires knowledge of the column's buckling load. In each method, short-term displacements are measured at given cross-sections along the member under examination, which is subjected to an additional transverse load. The two methods were verified in this study through experimental and numerical tests on a column of a small-scale space frame prototype with generic connections and end conditions. Estimations of compressive forces were generally reliable when second-order effects were accurately considered. In conclusion, the two methods can be successfully used to test steel space frames in a laboratory or under real conditions.

Original languageEnglish
Article number1850092
JournalInternational Journal of Structural Stability and Dynamics
Volume18
Issue number7
DOIs
StatePublished - 1 Jul 2018

Keywords

  • Inverse problem
  • load identification
  • nondestructive test
  • space frame

Fingerprint Dive into the research topics of 'Compressive Column Load Identification in Steel Space Frames Using Second-Order Deflection-Based Methods'. Together they form a unique fingerprint.

  • Cite this