Friction measurement and correction method in quasi-static tests of columns under combined axial and cyclic lateral loading

Zeyuan Wang, Peng Feng, Shi Cheng, Tao Yu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

In quasi-static tests of large-scale structural columns and/or columns under large axial loads, the lateral friction force between the column and the loading system can become a significant problem: they may cause considerable deviation between the measured lateral force and the actual reaction force of the column, especially under large axial compression load. Many researchers have come up with different methods to reduce or eliminate the influence of such friction force. In this article, previous treatments on the lateral friction force in quasi-static tests are first discussed. A shear force measurement device, for accurate measurement of the friction force, is then presented and calibrated. Based on the friction forces measured by the device in real tests, a simple model is proposed to predict the lateral friction force in quasi-static tests. Using the model, the measured lateral force in such tests can be corrected to obtain the actual reaction force of the column when a friction measurement device is absent. The proposed model and the correction method are then validated using results from several previous tests.

Original languageEnglish
Pages (from-to)2672-2686
Number of pages15
JournalAdvances in Structural Engineering
Volume22
Issue number12
DOIs
Publication statusPublished - 1 Sep 2019
Externally publishedYes

Keywords

  • friction correction
  • friction measurement
  • lateral friction
  • quasi-static test
  • structural columns

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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