Strength deformation behaviour of circular concrete filled steel tubes subjected to pure bending

2009 ◽  
Vol 65 (8-9) ◽  
pp. 1836-1845 ◽  
Author(s):  
Manojkumar V. Chitawadagi ◽  
Mattur C. Narasimhan
Author(s):  
B. J. Vartdal ◽  
S. T. S. Al-Hassani ◽  
S. J. Burley

The response to pure bending of tubes with rectangular cut-outs is considered. Experiments on 1000-mm long, 100-mm diameter, and 2.55-mm wall thickness DIN 2391 ST NBK supported steel tubes are described. Such a thickness-to-diameter ratio is typical of structural columns, rather than shell structures. Tubes containing cut-outs with an axial dimension of up to 30 mm and a circumferential size of up to 180° were tested. It was found that plastic hinge mechanisms dominated the response when the cut-out was on the compressive side, whereas fracture behaviour dominated the response when the cut-out was on the tensile side. Finite element and semi-empirical analyses were carried out to predict the global load-deformation behaviour of the tubes. All analyses gave reasonable predictions of the experimental results for the majority of the cut-out parameters investigated. The aim of this study is to investigate the feasibility of using cut-outs to initiate and control the toppling of offshore jacket structures.


2019 ◽  
Vol 158 ◽  
pp. 460-474 ◽  
Author(s):  
Yasoja K.R. Gunawardena ◽  
Farhad Aslani ◽  
Brian Uy ◽  
Won-Hee Kang ◽  
Stephen Hicks

2011 ◽  
Vol 374-377 ◽  
pp. 2239-2244
Author(s):  
Fa Xing Ding ◽  
Ya Ting Luo ◽  
Xiao Yong Ying ◽  
Zhao Hui Lu

Based on appropriate numerical constitutive model of lightweight aggregate concrete filled steel tubes (LCFST), layered method was adopted to predict the complete moment-curvature curves of LCFST composite section subjected to pure bending. A FORTRAN program for the moment-curvature curves was developed. Applying the layered method, the influences of the significant parameters, such as steel ratio, yield strength of steel and strength of lightweight aggregate concrete on the moment-curvature curves of the composite section subjected to pure bending were discussed. The practical composite flexural stiffness, ultimate moment and practical moment- curvature relationship of LCFST composite section were presented. The predicted results of both layered method and practical moment-curvature relationships of LCFST composite section are in good agreement with the test results from reference. Compared with the layered method, practical calculate method could remove the step of composite section layered and improve the calculation speed while achieving similar results.


2021 ◽  
Vol 182 ◽  
pp. 106653
Author(s):  
Da-wei Zhang ◽  
Yu Zeng ◽  
Ju Chen ◽  
Fuyuan Gong ◽  
Cheng-bin Liu

2000 ◽  
Vol 126 (11) ◽  
pp. 1295-1303 ◽  
Author(s):  
Martin D. O'Shea ◽  
Russell Q. Bridge

ce/papers ◽  
2021 ◽  
Vol 4 (2-4) ◽  
pp. 723-730
Author(s):  
Milad Soltanalipour ◽  
Miquel Ferrer ◽  
Albert Albareda ◽  
Frederic Marimon ◽  
Miquel Casafont ◽  
...  

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