Experimental study on flexural behavior of micro circular steel pipe with grouting

2018 International Conference on Civil, Architecture and Disaster Prevention

土木建筑工程

Tang, Xianyuan^1^2 ; Huang, Lang^2 ; Liang, Jingyuan^2

School of Architecture and Transportation, Guilin University of Electronic Technology, Guilin, Guangxi

541004, China^1

Department of Civil Engineering of Guangxi University of Technology, Liuzhou, Guangxi

54506, China^2

关键词: Bending resistance;    Calculation results;    Circular steel tubes;    Deformation Characteristics;    Design calculations;    Grouting materials;    Ultimate bearing capacity;    Ultimate bending capacities;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/218/1/012038/pdf
DOI  :  10.1088/1755-1315/218/1/012038

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

In order to study the bending resistance of grouted micro circular steel tube, pure bending tests on 9 grouted steel tubes were carried out with different grouting materials and three kinds of diameter steel tube. Through the analysis of deflection, surface strain and internal steel bar strain during the test, the deformation characteristics and load-strain relationship of members under load are studied. The ultimate bending capacity and bending stiffness test results are compared with the calculated values of different codes. The results show that the ultimate bearing capacity calculated by different codes is quite different from the test results, and the calculated values of Fujian Provincial Standard DBJ13-51-2010 are in good agreement with the test results and are safe. The bending stiffness at the initial stage calculated by different codes and the bending stiffness at the service stage are also quite different from the test results. The calculation results of AIJ (2002) are in good agreement with the test results and can be used for design calculation after revision.