圆钢管混凝土桁架受力性能研究

高胜伟; 陈誉

doi:10.3969/j.issn.2095-476X.2013.01.016

January 2013

Article Contents

GAO Sheng-wei and CHEN Yu. Research on mechanical behavior of circular concrete filled steel tubular truss[J]. Journal of Light Industry, 2013, 28(1): 66-71. doi: 10.3969/j.issn.2095-476X.2013.01.016

Citation: GAO Sheng-wei and CHEN Yu. Research on mechanical behavior of circular concrete filled steel tubular truss[J]. Journal of Light Industry, 2013, 28(1): 66-71. doi: 10.3969/j.issn.2095-476X.2013.01.016 shu

Research on mechanical behavior of circular concrete filled steel tubular truss

GAO Sheng-wei ,
CHEN Yu

College of Civil Engineering, Huaqiao University, Xiamen 361021, China

Received Date: 2012-06-10
Available Online: 2013-01-15

Abstract

To research the mechanical behavior of circular concrete filled steel tubular (CFST) truss, four truss specimens of the different sections such as rectangular truss,inverse-triangular truss,trapezoid truss and triangular truss were tested under static point loading.Results of these tests showed that truss specimens are stressed more in the segment 0-2/6l of the bottom chord,expect specimen TT which is stressed more in the top chord.The difference among these trusses sections has a great influence on the axial force of chord, and each segment bears quite large in-plane bending moment, but it has different influence on the web members.Among these trusses,webs of specimen IT have a more reasonable condition.The influence on web in-plane bending moment is larger and larger as the following order:rectangular section, trapezoid section, inverted triangularsection,furthermore, force condition of bottom chords is more and more complex.To the top chords filled concrete, section "weaken" from rectangular section to trapezoid section, inverted triangular section, and triangular section makes a different influence on in-plane bending moment of each segment.
- circular concrete filled steel tubular (CFST) truss,
- section form,
- mechanical behavior,
- force distribution model
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沈阳化工大学材料科学与工程学院沈阳 110142

Research on mechanical behavior of circular concrete filled steel tubular truss

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通讯作者: 陈斌, bchen63@163.com