Nilupa Herath

Dr. Nilupa Herath

orcid

Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

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

Representative Publications

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1 January 2017 in International Journal of Applied Mechanics
Verified
Journal Article
Closed access
Bidur KafleBidur Kafle
Bidur Kafle
Lihai ZhangLihai Zhang
Lihai Zhang
Priyan MendisPriyan Mendis
Priyan Mendis
NHNilupa Herath
Nilupa Herath
MMMaizuar Maizuar
Maizuar Maizuar
Russell ThompsonRussell Thompson
Russell Thompson

16 August 2022 in Journal of Quality in Maintenance Engineering
Verified
Journal Article
Closed access
NHNilupa Herath
Nilupa Herath
CDColin Duffield
Colin Duffield
Lihai ZhangLihai Zhang
Lihai Zhang
Purpose: School infrastructure is one of critical factors that significantly contribute to the educational outcomes, and therefore, maintaining the high quality of school infrastructure becomes of critical importance. Due to the ageing of school assets over time in combination with budget constraint and rapid growth of student enrolment, many public schools are currently struggling to maintain the required standard for long term. However, to date, the goal of providing the best maintenance practices to public schools has not been achieved.Design/methodology/approach: The present study focuses on studying the balance between the asset and maintenance management strategies and the funding model through conducting state-of-the-art literature review and qualitative analysis in the context of public schools in Australia and other developed countries around the world. Review of journal articles, different government reports and other available resources were used to collect and analyse the data in this study.Findings: As part of this review, significant under investment in maintenance and asset renewals were identified as main challenges in asset management in public school facilities. Although different maintenance strategies were used in school infrastructure, adequate funding, adequate robust asset management plans (AMPs) and the involvement of private sectors have been identified as the key factors that govern the success in school infrastructure maintenance. It also shows that funding of approximately 2–3% of asset replacement value (ARV) on school infrastructure is required to maintain school facilities for long-term. Further, the procurement methods such as public private partnership including private finance initiatives (PFIs) have shown great improvements in maintenance process in school infrastructure.Originality/value: The study provides a review of different AMPs and funding models in school infrastructure and their efficiencies and shortcoming in detail. Different states and countries use different maintenance models, and challenges associated with each model were also discussed. Further this study also provides some conclusive evidence for better maintenance performance for school buildings.

26 February 2019 in Journal of Composite Materials
Verified
Journal Article
Closed access
Weena LokugeWeena Lokuge
Weena Lokuge
RARajab Abousnina
Rajab Abousnina
NHNilupa Herath
Nilupa Herath
This research paper presents the results of an experimental investigation on the axial compressive behaviour of 24 geopolymer concrete-filled glass fibre-reinforced polymer tubes. The test variables considered are the compressive strength of geopolymer concrete (30 MPa and 35 MPa) and the shape of the cross section (square, circular and rectangular). All the glass fibre-reinforced polymer tubes had the same amount of fibres and similar fibre orientation together with the same aspect ratio. The failure of the square and rectangular columns initiated with the splitting of the corners and resulted in a lower load-carrying capacity compared to the circular columns whose failure was initiated by the crushing of glass fibre-reinforced polymer tube followed by the separation of glass fibre-reinforced polymer tube into strips. It can be concluded that axial load-carrying capacity of square and rectangular sections can be improved by a concrete filler with higher compressive strength. Adopted finite element analysis to simulate the behaviour of the columns is capable of predicting the stress–strain behaviour and the mode of failure.

6 April 2025 in Journal of Building Engineering
Verified
Journal Article
Open access
PDPasadi Litara Devapura
Pasadi Litara Devapura
TAThusitha Ginigaddara Appuhamilage
Thusitha Ginigaddara Appuhamilage
DUDanula Udumulla
Danula Udumulla
PMPriyan Mendis
Priyan Mendis
MBMichael Booy
Michael Booy
NHNilupa Herath
Nilupa Herath

29 October 2020 in Applied Sciences
Verified
Journal Article
Open access
PDF file
Linna GENGLinna GENG
Linna GENG
NHNilupa Herath
Nilupa Herath
Lihai ZhangLihai Zhang
Lihai Zhang
Felix Kin Peng HuiFelix Kin Peng Hui
Felix Kin Peng Hui
CDColin Duffield
Colin Duffield
In the operational phase of public-private partnership (PPP) contracts, undue delay in addressing real needs may lead to poor service outcomes; conversely, commencing variations to a PPP agreement on the whim of end-user runs the risk of reducing the value created by detailed structuring and considerations undertaken in establishing agreement. This difficulty is exasperated as there is generally a lack of understanding by the end-user as to the specifics of service delivery performance requirements contracted. In order to address this question, this study, for the first time, develops a reliability-based decision support framework (RDSF) that incorporates end-user’s perceived service quality (i.e., how satisfied it is with the space, operation and maintenance activities) with those specified in the PPP agreement, and further identifies when the gap between end-user’s expectations and contractual obligations warrants reconsideration. This developed framework is then implemented to test the data gathered from three PPP schools in Australia based on both a current snapshot of performance data, i.e., abatements as gathered through contract documents and end-user’s perception through in-depth interviews, and a projected scenario of the future as well. Reliability analysis used here compares time-dependent risk profiles of current and expected performance and thereby identifies major changes in a PPP contract that would sensibly require reconsideration. The specific results indicate there is no current difficulty between end-user’s perception and the contract. However, the projected long-term scenario demonstrates how the decision framework can identify areas for review and changes if end-users are more dissatisfied with the service being achieved. The RDSF is capable of quantifying current service performance, considering the engagement of the end-user. Thus it enriches theories in the field of performance management system (PMS), and also contributes to knowledge regarding an evidence-based test for justifying possible agreement modifications or additional works in social PPPs operations. In addition, guidance for performance improvement strategies in aspects of the dissatisfied area is also provided. Application of this approach would assist in maintaining the long-term value for money of social infrastructure PPP agreements.

1 December 2021 in Case Studies in Construction Materials
Verified
Journal Article
Open access
Weena LokugeWeena Lokuge
Weena Lokuge
OOOmar Otoom
Omar Otoom
RBRahmin Borzou
Rahmin Borzou
Satheeskumar NavaratnamSatheeskumar Navaratnam
Satheeskumar Navaratnam
NHNilupa Herath
Nilupa Herath
DTDavid Thambiratnam
David Thambiratnam