Numerical analysis on torsional behavior of rectangular and square CFDST members

Guobing Lu, Meini Su, Xuhong Zhou, Xiaowei Deng, Yongtao Bai, Yuhang Wang

Research output: Contribution to journalArticlepeer-review

91 Downloads (Pure)

Abstract

This paper numerically investigated the behavior of rectangular and square concrete-filled double skin steel tubular (CFDST) members under torsion. The finite element model of rectangular and square CFDST members was established and verified against the test results for the members under cyclic torque. The comparison of the finite element analysis results and experiment results show that the comprehensive finite element model can accurately predict the torsional behavior of rectangular and square concrete-filled double skin steel tubular members. Parametric analyses by using the calibrated finite element model were conducted to investigate the influence of various parameters, such as hollow ratio, concrete strength, yield strength and cross-sectional steel consumption of steel tubes on the torsional behavior of rectangular and square CFDST members. Based on the mechanical analysis and regression analysis methods, the design formula was proposed to predict the torsional capacity of rectangular and square CFDST members. The comparison results show that the proposed formula for predicting the torsional capacity of rectangular and square CFDST members has good accuracy.
Original languageEnglish
Pages (from-to)107294
JournalJournal of Constructional Steel Research
Volume193
Early online date29 Apr 2022
DOIs
Publication statusPublished - 1 Jun 2022

Fingerprint

Dive into the research topics of 'Numerical analysis on torsional behavior of rectangular and square CFDST members'. Together they form a unique fingerprint.

Cite this