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{Sadowski:2020:10.1061/(ASCE)ST.1943-541X.0002747,
author = {Sadowski, A and Wei, Jun W and Simon, Li SC and Málaga-Chuquitaype, C and Pachakis, D},
doi = {10.1061/(ASCE)ST.1943-541X.0002747},
journal = {ASCE Journal of Structural Engineering},
pages = {1--13},
title = {Critical buckling strains in thick cold-formed circular hollow sections under cyclic loading},
url = {http://dx.doi.org/10.1061/(ASCE)ST.1943-541X.0002747},
volume = {146},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Contrary to the large dataset of test results exploring the monotonic bending response of steel tubes, the corresponding dataset of cyclic bending tests remains very small. Seven compact   and   semi-compact   S355J2H   cold-formed   circular   hollow   sections   with diameter to thickness (D/t) ratios between 20 to 60, representative of piles used in piers and  wharves,  were  brought  to  failure  in  three-point  cyclic  bending  tests.  Digital  Image Correlation was employed to estimate average cross-sectional curvatures, and hence the critical  bending  strains,  during  local  buckling  at the  midspan  plastic  hinges.  These estimates were compared against those from two simplified localised hinge models and differed  by  up  to  a  factor  of  two.  A  parametric  study  was  performed  with  a  validated finite  element  model  to  ascertain  the  suitability  of  proposed  design  equations  at predicting critical strains in piles with D/t from 20 to 60 under cyclic loading. Test and simulation  data  both  show  that  critical  buckling  strains  are  lower  under  cyclic  loading than under monotonic loading. This work can inform the future development of seismic  design standards such as ASCE 61-14.
AU  - Sadowski,A
AU  - Wei,Jun W
AU  - Simon,Li SC
AU  - Málaga-Chuquitaype,C
AU  - Pachakis,D
DO  - 10.1061/(ASCE)ST.1943-541X.0002747
EP  - 13
PY  - 2020///
SN  - 0733-9445
SP  - 1
TI  - Critical buckling strains in thick cold-formed circular hollow sections under cyclic loading
T2  - ASCE Journal of Structural Engineering
UR  - http://dx.doi.org/10.1061/(ASCE)ST.1943-541X.0002747
UR  - https://ascelibrary.org/doi/10.1061/%28ASCE%29ST.1943-541X.0002747
UR  - http://hdl.handle.net/10044/1/78942
VL  - 146
ER  -
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