Satheeskumar Navaratnam

Satheeskumar Navaratnam
RMIT University | RMIT · School of Engineering

PhD, MSc (Eng), BSc (Eng), MIEAust, CPEng, NER
I am looking for an interesting position and research collaboration

About

64
Publications
32,204
Reads
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860
Citations
Citations since 2016
58 Research Items
850 Citations
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Introduction
As a Civil Structural Engineer/Researcher, I am looking for an interesting position in the area of Civil, Wind and Structural Engineering. I have and had more than eight years’ experience in the UK, Australia, Singapore and Sri Lanka, specializing in the major fields of civil engineering building design and construction.
Additional affiliations
September 2019 - present
RMIT University
Position
  • Lecturer
May 2018 - September 2019
University of Melbourne
Position
  • Research Associate
July 2016 - January 2018
James Cook University
Position
  • Research Associate
Education
April 2013 - July 2016
James Cook University
Field of study
  • Civil and Structural Engineering
October 2009 - September 2010
The University of Sheffield
Field of study
  • Steel Construction Engineering
January 2005 - August 2009
University of Peradeniya
Field of study
  • Civil Engineering

Publications

Publications (64)
Article
Full-text available
The study conducts a comprehensive life cycle assessment (LCA) of precast sandwich panels by integrating operational and embodied phases detailing thermal efficiency and environmental impacts. The analytical regression model is developed for climatic diversity and design variables using the energy rating tool FirstRate5 to compare with a convention...
Article
Full-text available
Timber structural members have been widely adopted and used in construction due to their inherent characteristics. The main objective of this work is to assess the performance of timber beams with GFRP pultruded beam reinforcement subjected to flexure. A finite element model (FEM) using ABAQUS FEM software is developed, aiming to provide a benchmar...
Article
Full-text available
A diagnostic framework is proposed to assess the influence of star rating improvement for residential buildings on life cycle environmental impacts and life cycle costs (LCEI and LCC) using life cycle assessment (LCA) and life cycle costing methods, respectively, on all life cycle phases (i.e., construction, operation, maintenance, and disposal). A...
Article
Full-text available
Effective waste management has become a crucial factor in Australia because, from 1996 to 2015, the population increased by 28%, while Australia’s annual waste increased by 170%. In the period 2018–2019, Australia generated 27 Mt of construction demolition waste (44% of all waste). Although 76% of this waste is recycled, there has been a 61% increa...
Article
The study aims to conduct a comprehensive cost-benefit analysis (CBA) for incremental energy star ratings in Melbourne and Perth by upgrading the thermal performance of the building façade. CBA is performed over 20, 40, and 60 years by considering the refurbishment of an existing building façade or a newly constructed house to ensure the highest en...
Article
Full-text available
A considerable amount of construction and demolition wood waste (CDWW) is generated, mostly landfilled, contributing to severe environmental effects. The management of CDWW is a significant challenge as it is a hazardous contaminated waste. In this context, the circular economy (CE) concept is a solution as it comprises waste minimisation and effic...
Article
Full-text available
The limited knowledge of the behaviour of modular buildings subjected to different loading scenarios and thereby lack of design guidelines hinder the growth of modular construction practices despite its widespread benefits. In order to understand the robustness of modular building systems, a case study was carried out using the numerical analysis m...
Article
Full-text available
Glue in rod (GIR) connections in timber structures are used, as they enable the prefabrication of timber sections and frames. However, uncertainties of achieving perfect GIR connection owing to possible non-uniformity in the glue application and rod alignment hamper widespread usage of GIR connection in timber structures. Although plenty of experim...
Article
Full-text available
The evolution of innovative construction technology and automation has rapidly transformed the construction industry over the last few decades. However, selecting the most efficient and sustainable construction technology for high-rise building construction is a critical factor in completing the project successfully. This requires a multiple-judgme...
Article
Full-text available
Timber is re-emerging as a prominent structural material in construction due to its sustainability and aesthetic features. Timber is increasingly used in composite elements made along with steel and concrete. In the composite elements, timber is subjected to a triaxial confined stress state. However, the characteristics of timber under triaxial str...
Article
Full-text available
Critical infrastructures such as transportation, power, telecommunication, water supply, and hospitals play a vital role in effectively managing post-disaster responses. The resilience of critical infrastructures should be incorporated in the planning and designing phase based on the risk assessment in a particular geographic area. However, the fra...
Article
The construction industry has played a huge role in sustaining the economy of Australia during the ongoing Covid-19 pandemic. However, construction activities tend to be limited due to the restrictions on travel, transport, and workforce availability which in turn affects the lack of materials and workforce for construction. On the other hand, the...
Article
Full-text available
Concrete-infilled hollow flange cold-formed steel (CF-HFCFS) beams have gained attention in the construction practices owing to many benefits in terms of their structural performances and applicability. The concrete infill ensures better structural performance by restraining the buckling instabilities of thin-walled cold-formed steel elements. Howe...
Article
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Working from home (WFH) has been imposed due to the COVID-19 pandemic. The adoption of WFH impacts energy use in the residential, commercial, and transportation sectors. Consequently, this affects the greenhouse gas emission (GHGE) and the associated energy costs to workers and employers. This study estimates the effects of WFH on the GHGE and ener...
Article
Engineered timber elements are gaining wide acceptance in construction with the increased practice of mass timber structures. The design of moment resistance connection is a contentious issue amongst practitioners and researchers. However, studies available on the performance of timber frame moment resisting connections made of various engineered t...
Article
Full-text available
The COVID-19 pandemic forced the accessibility, social gathering, lifestyle, and working environment to be changed to reduce the infection. Coronavirus spreads between people in several different ways. Small liquid particles (aerosols, respiratory droplets) from an infected person are transmitted through air and surfaces that are in contact with hu...
Article
Full-text available
Flexural behaviour and design of hollow flange cold-formed steel 1 beam filled with lightweight normal and lightweight high strength 2 concrete 3 Mohamed Sifan Abstract 26 A comprehensive investigation of the flexural behaviour of concrete-infilled hollow flange cold 27 formed steel (CF-HFCFS) beams with lightweight normal and lightweight high stre...
Article
A comprehensive investigation of the flexural behaviour of concrete-infilled hollow flange cold formed steel (CF-HFCFS) beams with lightweight normal and lightweight high strength concrete is presented in this paper. These are new generation of complex members, and their enhanced structural capacity is governed by inter-related parameters including...
Article
This experimental study investigated the compressive behavior of lightweight concrete after exposure to elevated temperatures. In total, 240 samples from 30 different mixtures were prepared and tested to evaluate the compressive strength, elastic modulus, strain at peak stress, and stress–strain relationships of lightweight aggregate concrete (LWAC...
Article
Full-text available
Prefabrication has shown to be an effective way of construction in the modern day context. Although, much progress has been made in developing reinforced concrete (RC), timber and steel prefabricated elements/structures, prefabrication of masonry walling systems have received limited attention in the past. Conventional masonry construction is labou...
Article
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Timber usage in the Australian construction industry has significantly increased due to its strength, aesthetic properties and extended allowances recently introduced in building codes. However, issues with acoustic performance of lightweight timber buildings were reported due to their inherit product variability and varying construction methods. T...
Article
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Cold-formed stainless-steel (CFSS) sections are increasingly popular for architectural and structural applications, especially in the corrosive environment due to its resistance to corrosion and other various benefits. The combination of stainless-steel material properties and the lightweight section properties makes the CFSS section the right choi...
Article
Full-text available
Rehabilitation using Glass Fibre Reinforced Polymer (GFRP) wrapping system is an innovative technique for rehabilitation of deteriorated timber structures exposed to severe environmental conditions. This paper investigates the effectiveness of rehabilitation using GFRP wrapping system for deteriorated timber piles due to splitting. An experimental...
Article
The rice processing industry generates a significant amount of rice husk ash (RHA) waste, which is considered as cost-efficient and environmentally friendly pozzolanic material. This study used RHA as a replacement for filler material/fine aggregate in the mortar. The mechanical, thermal, and environmental performance of mortar comprising RHA waste...
Article
Full-text available
Cold-formed steel (CFS) and cross-laminated timber (CLT) structural components are widely employed in low- to mid-rise and modular building constructions. These two materials have individually shown to be lightweight, and possess relatively higher strength characteristics. Owing to these benefits, composite CLT-CFS sections can be used as structura...
Article
The use of modular construction shows continuous growth leading to cost-effective and fast construction methods. Modular Construction Optimised (MCO) beams are employed in steel-framed modular units owing to their enhanced structural performance. MCO beams fall under the hollow flange beam family and can be produced using roll forming techniques, w...
Article
The energy used to maintain the thermal comfort of buildings significantly contributes to the GHG emissions and global warming. In this study, a sustainable and cost-effective rice husk ash (RHA)-based mortar for wall plastering has been developed to provide better thermal insulation, reduce the operational energy and enhance the thermal comfort. C...
Article
Full-text available
The effects of elevated temperature on the compressive strength and stress-strain behaviour of biochar-based mortar were investigated in this research. A total of 39 cylindrical (100 × 200 mm) specimens were prepared with four mortar mixtures by replacing 0%, 5%, 10% and 20% of cement weight with biochar. The specimens were cured for 28 days and ex...
Article
Full-text available
3D Printed Concrete (3DPC) technology is currently evolving with high demand amongst researches and the integration of modular building system (MBS) with this technology would provide a sustainable solution to modern construction challenges. The use of lightweight concrete in such innovative construction methods offers lightweight structures with b...
Article
Many bridges built during the colonial times in Australia have timber girders as load transferring elements and they are still in service with increased traffic loads and consistent deterioration. Most of the timber girders in those bridges are notched at the ends for better seating arrangement. Therefore, it is necessary to quantify the strength c...
Article
Full-text available
50 days free access: https://authors.elsevier.com/a/1cMa18MoIGqTj- The application of additively manufactured, 3D printed concrete in the construction industry has been gaining attention in recent years. 3D concrete printing (3DCP) has potentials for mass customisation and off-site and rapid manufacturing of complex structural and architectural c...
Article
Full-text available
The ongoing COVID-19 disease significantly affects not only human health, it also affects the wealth of country’ economy and everyday routine of human life. To control the spread of the virus, face mask is used as primary personal protective equipment (PPE). Thus, the production and usage of face masks significantly increase as the COVID-19 pandemi...
Article
Full-text available
Purpose Fire safety of a building is becoming a prominent consideration due to the recent fire accidents and the consequences in terms of loss of life and property damage. ISO 834 standard fire test regulation and simulation cannot be applied to assess the fire performance of 3D printed concrete (3DPC) walls as the real fire time-temperature curves...
Article
Full-text available
Cold-Formed (CF) structural members have recently drawn significant attention in light gauge steel construction. The employment of the different materials, for example CF carbon steel, stainless steel and aluminium, are becoming more common. These structural members are often subjected to concentrated loading conditions, which ultimately leads to f...
Article
Full-text available
Timber infilled steel tubular (TIST) columns can be a promising alternative to the concrete infilled steel tubular (CIST) columns, particularly for the lightly loaded prefabricated structures, as timber is lighter and more sustainable material than the conventional concrete. However, limited research studies were dedicated to investigate the struct...
Article
Full-text available
The suitability of untreated rice husk ash (URHA) as a supplementary to the ordinary Portland cement (OPC) and fine aggregates (FA) in high strength self-compacting concrete (SCC) was investigated in terms of mechanical properties as well as environmental impact assessments (EIA). In total, nine SCC mixes were prepared and investigated with various...
Article
Full-text available
Strengthening of masonry walls using Fibre Reinforced Polymers (FRP) sheets have shown to improve the lateral (in-plane and out-of-plane) resistance and deformation characteristics. While the improvements in shear and flexural resistances of FRP strengthened masonry are well understood, their simultaneous influence on the compression resistance of...
Article
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The concept of sustainability and the utilization of renewable bio-based sources have gained prominent attention in the construction industry. Material selection in construction plays a significant role in the design and manufacturing process of sustainable building construction. Several studies are being carried out worldwide to investigate the po...
Article
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Structural evaluation of masonry against dynamic seismic actions invariably requires appropriate cyclic compression constitutive models. However, not many research studies have been dedicated to date to investigate the cyclic compression behaviour of masonry. Therefore, series of experimental investigation followed by analytical model verification...
Article
Roof to wall connections (RWCs) play a major role in wind load sharing and load transfer of timber-framed houses. The lack of coherence in the load sharing and load transfer can cause premature failure of timber-framed houses. Thus, it is essential to provide RWCs with adequate strength and stiffness, to ensure the dynamic roof wind loads are adequ...
Article
Windstorm damage surveys highlight that the discontinuity in load resistance and transfer of connections in timber-framed housing can lead to total failure of the roof structure. Field surveys of timber-framed houses under construction in Australia also indicated that, for a typical roof configuration, at least three of its six or more roof trusses...
Article
Engineering wood products have significant potential as a sustainable alternative for concrete and steel in construction. Cross Laminated Timber (CLT) can add value to conventional timber products due to its high strength-to-weight ratio, simple installation, aesthetic features and environmental benefits. Recent changes in the national construction...
Article
Fibre reinforced composites (FRCs) have been increasingly used in the prefabricated building (PB) industry owing to its high strength-to-weight ratio, ease of application and flexibility in manufacturing. FRCs can be used in PBs for both structural and non-structural applications. The major hindrance for composite elements in PB is their fire perfo...
Article
The localised crack induced by external load on an individual cross laminated timber (CLT) structural element will generate stress concentrations, which leads to the failure of a structural member. A better understanding of the structural performance of CLT in terms of its strength and failure modes under transverse loading needs to be developed to...
Article
Full-text available
Volumetric prefabricated building construction is growing in most developed countries; for example, in Sweden the market share of prefabricated building systems in the housing industry was more than 80%. However, in Australia only approximately 3-4% of new building constructions are prefabricated buildings in a year. A major hindrance to the growth...
Conference Paper
Full-text available
Residential house structures in Australia are timber-framed construction and their roof connections are the most vulnerable components to windstorms. The failure or partial failure of inter-component connections within the roofing system, creates a change in the load path and load transfer from roof to wall. A series of finite element models were d...
Conference Paper
Full-text available
Nailed steel triple grip fasteners are one of the most common methods of tying down roof trusses and rafters to the top plate in timber-framed roof construction. It is normally assumed in design that this type of connection acts as a pinned joint between the roof structure and the top plate. Assuming this individual triple grip connection tests wer...
Article
This paper presents a three-dimensional (3D) finite-element model (FEM) of part of a contemporary timber-framed house for assessing the load sharing and contribution of lining elements to load sharing. Assembled with intercomponent connections (i.e., battento-cladding connections, batten-to-truss connections, and roof-to-wall connections), the mode...
Article
Full-text available
Extensive damage to houses during severe tropical cyclones in the 1970s in Australia highlighted the need for research-based structural engineering principles to be applied in design and construction of houses. Houses have structural redundancies and complex load paths, so the analysis of even simple houses was complicated. In order to evaluate the...
Article
The structural response and performance of connections are particularly important to assess the vulnerability of timber-framed structures to windstorms. Finite element (FE) analysis using ABAQUS (6.12-3) software is used in this study to determine the structural response and uplift capacities of typical roof to wall connections. Results (i.e. force...
Article
Full-scale tests were carried out on a part of representative brick veneer contemporary house to assess the loading effects on roof to wall connections and load sharing. Tests were carried out at each stage of construction: bare frame followed by the installation of roof battens and cladding, wall lining, ceiling, etc. These construction stages wer...
Thesis
Windstorms are one of the major causes of severe damage to houses and other infrastructure. Damage investigations indicate that the roof is the most vulnerable part of a timber-framed house, and that failures take place at inter component connections; hence there is a need to study the load sharing and structural response of these timber-framed hou...
Article
The roof-to-wall connection in a house is designed to transfer the uplift and lateral loads during strong winds by providing a continuous load path from the roof to the foundation. The uplift capacity and failure mode of the connection depends on the number and type of fasteners (nails), timber species, type of framing anchor, and constructions def...
Article
Full-text available
A nonlinear three dimensional (3D) finite element model of part of a contemporary timber-framed house for assessing the load sharing and contribution of lining elements to load sharing is presented in this paper. Assembled with inter-component connections (i.e. batten to cladding, batten to truss and roof to wall connections), the model consists of...
Conference Paper
Full-text available
Contemporary houses in many parts of Australia are brick veneer structures with metal or tile clad roofs that are built by trained builders using skilled labourers working to engineering design specifications. However, windstorms can cause significant damage to houses hence; there is a need to study the load sharing and response of these structural...
Conference Paper
Full-text available
Load sharing and structural response of contemporary representative houses to loading are investigated using numerical model analysis and full scale test in this study. The structural system of the contemporary representative house is obtained from a field survey by Cyclone Testing Station, James Cook University. In Australia, Contemporary houses a...
Conference Paper
Full-text available
Windstorms are one of the major causes of severe damage to houses and other infrastructure. An assessment of previous studies on damage to timber framed houses shows that the roof is the most vulnerable part of a house, and that failures take place at inter component connections (i.e. cladding to batten, batten to truss connection and truss or raft...