Hasini Weerasinghe

Mrs. Hasini Weerasinghe

University of Sri Jayewardenepura, Colombo, Western, Sri Lanka

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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31 October 2022 in Buildings
Verified
Journal Article
Open access
PDF file
HWHasini Weerasinghe
Hasini Weerasinghe
CKChaminda Konthesingha
Chaminda Konthesingha
SNS.M.A Nanayakkara
S.M.A Nanayakkara
Keerthan PoologanathanKeerthan Poologanathan
Keerthan Poologanathan
Gatheeshgar PerampalamGatheeshgar Perampalam
Gatheeshgar Perampalam
EKElilarasi Kanthasamy
Elilarasi Kanthasamy
This paper reviews the research advancements and design practices related to the structural web crippling response of lipped Cold-Formed (CF) carbon steel, stainless steel, and aluminium channels with web perforations. The web crippling response differs among each material based on the non-linear stress-strain characteristics and degree of strain hardening. Therefore, the reduction in the web crippling strength of web-perforated CF channel sections made of different materials may not be equivalent. The research activities surrounding the web crippling response of CF channels with and without web openings were reviewed initially. Despite the limited design provisions given in the international specifications for the web crippling design of lipped CF channels with web openings, web crippling studies conducted across the world have developed suitable design equations in the form of reduction factors. Past research studies have substantially captured the web crippling response of carbon steel channels with web openings while that of stainless steel and aluminium are limited, as identified in this paper. Lastly, numerical models were developed for simulating the web crippling behaviour of lipped CF carbon steel, stainless steel, and aluminium channels with web opening and validated with past experimental data, with a view for developing unified design guidelines.