Imperial College London
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Dr Adam Jan Sadowski

Faculty of Engineering, Department of Civil and Environmental Engineering

Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 3065a.sadowski Website

 
 
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Location

 

318Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Meng:2020:10.1016/j.tws.2019.106486,
author = {Meng, X and Gardner, L and Sadowski, A and Rotter, J},
doi = {10.1016/j.tws.2019.106486},
journal = {Thin Walled Structures},
pages = {1--12},
title = {Elasto-plastic behaviour and design of semi-compact circular hollow sections},
url = {http://dx.doi.org/10.1016/j.tws.2019.106486},
volume = {148},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Previous research has revealed shortcomings in the current Eurocode 3 (EC3) provisions for the design of  semi-compact  (Class  3)  cross-sections.  These  shortcomings  arise  primarily  from  the  lack  of utilisation of partial plastification in bending, leading to a step in the design resistance function at the boundary between Class 2 and 3 cross-sections and an underestimation of the available capacity. This affects the accuracy of resistance predictions in bending and under combined loading, and applies at both  cross-sectional  and  member  level.  To  address  this  issue,  the  use  of  an  elasto-plastic  section modulus, which lies between the plastic and elastic section moduli, has been proposed and employed in the design of semi-compact I- and box sections. The aim of the present study is to develop new cross-section and member buckling design rules incorporating the elasto-plastic section modulus for semi-compact circular hollow sections (CHS), and to assess their accuracy against existing experimental and freshly generated numerical data. Firstly, an experimental database, consisting of previous cross-section and member buckling test results on steel CHS, was established. A comprehensive numerical simulation programme  was  subsequently  carried  out;  in  this  programme,  finite  element  (FE)  models  were developed, validated and used for parametric studies, where over 600 numerical structural performance data  on  semi-compact  CHS  were  generated.  New  sets  of  cross-section  and  member  buckling  design expressions featuring elasto-plastic section properties were then proposed and assessed against the test and numerical data. The proposals were shown to offer improved accuracy and design efficiency over the elastic EC3 methods. The reliability of the proposed elasto-plastic design rules was then confirmed through statistical analyses in accordance with EN 1990, demonstrating their suitability for inclusion into the next revision of EN 1993
AU  - Meng,X
AU  - Gardner,L
AU  - Sadowski,A
AU  - Rotter,J
DO  - 10.1016/j.tws.2019.106486
EP  - 12
PY  - 2020///
SN  - 0263-8231
SP  - 1
TI  - Elasto-plastic behaviour and design of semi-compact circular hollow sections
T2  - Thin Walled Structures
UR  - http://dx.doi.org/10.1016/j.tws.2019.106486
UR  - https://www.sciencedirect.com/science/article/abs/pii/S0263823119310286?via%3Dihub
UR  - http://hdl.handle.net/10044/1/75123
VL  - 148
ER  -
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