Thadshajini Suntharalingam

• PhD | B.ScEng (Hons) | FHEA | PgCLTHE
• Senior Lecturer in Civil Engineering at University of Roehampton

Additive manufacturing in construction industry has been introduced as an aspiration for a more sustainable built environment and currently evolving with high demand amongst researches. This study is an investigation of the influence of polypropylene (PP) fibre addition on the workability parameters of a new extrudable concrete mixture. As the qual...

Cold‐formed steel beams are often provided with web holes to accommodate service conduits. These web holes result in reduced structural strength. Accurate estimation of the structural strength, including shear strength, is crucial during the design phase. There are a lot of studies available in the literature investigating the shear strength reduct...

Cold-formed steel (CFS) sections are widely used in structural systems and are particularly prone to shear failure in short span applications. Therefore, accurate shear strength estimation is essential for the design. However, while there exists an abundance of research studies investigating the shear behaviour of CFS sections, there is a clear nee...

Modular building systems (MBS) and Origami are two emerging methods used in current construction practice. Origami is directly associated with the principles of the ancient Japanese art of paper folding, characterised by high morphological possibilities and ultimately creates foldable structures with tuneable mechanical properties. However, there i...

The modular construction industry often seeks cost-effective, high-performing, and longer-span members in buildings to ensure efficiency and quality. Accordingly, the idea of built-up sections was brought into gain numerous benefits including higher structural capacity, improved torsional rigidity, and increased stiffness. While limited research st...

This study presents the application of popular machine learning algorithms in prediction of the shear resistance of steel channel sections using experimental and numerical data. Datasets of 108 results of stainless steel lipped channel sections and 238 results of carbon steel LiteSteel sections were gathered to train machine learning models includi...

The large-scale additive manufacturing (AM), well-recognized as 3D concrete printing is developing and therefore gained intensive research attention. However, this technology is requiring appropriate specifications and standard guidelines. Furthermore, the performance of printable concrete in elevated temperature circumstances is still not explored...

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...

The use of 3D printing in modular building connections is a novel and promising technique. However, the performance of 3D printed steel modular building connections has not been investigated adequately to date. Therefore, this paper presents a three-dimensional finite element model (FEM), using the multi-purpose software Abaqus, to study the effect...

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...

Cold-Formed Steel (CFS) sections are evolved through the last two decades compromising various aspects of construction needs. Doubly symmetric Rectangular Hollow Flange Beam (RHFB) is one of the innovative CFS sections, which was introduced to eliminate the drawbacks of conventional open CFS sections such as prone to complex buckling and torsional...

Modular Building System (MBS) offers numerous benefits in terms of productivity, sustainability and safety. Therefore, MBS is considered as a viable option to sort out housing crisis in Britain as well as to drive Britain towards sustainable construction. Development in materials, manufacturing techniques, connection types and structural designs wi...

Three-dimensional-printed concrete (3DPC), which is also termed as digital fabrication of concrete, offers potential development towards a sustainable built environment. This novel technique clearly reveals its development towards construction application with various global achievements, including structures such as bridges, houses, office buildin...

Steel fibre-reinforced self-compacting concrete (SFRSCC) combines the benefits of SCC of high flowability and randomly dispersed steel fibres together in one single concrete. Steel fibres prevent brittle behaviour and improve several mechanical properties of SCC. In this paper, an experimental investigation of the effect of three-dimensional (3D) s...

Light-gauge Steel Frame (LSF) systems, one of the emerging building practices can be susceptible for catastrophic failure in fire accidents and less energy efficient due to the high thermal conductance of Cold Formed (CF) steel elements and resulting thermal bridging effect. Apart from independent investigations and optimization on LSF walls agains...

In recent times, modular construction is considered as one of the most effective construction methods. It is necessary to understand the structural behaviour of modular construction elements for possible improvements. Modular Construction Optimised (MCO) beam is one of the innovative profiles and can be categorised into hollow flange Cold-Formed St...

Cold-Formed Steel (CFS) sections are extensively used in structural engineering applications replacing the conventional hot-rolled sections due to their inherent advantages. Web openings are generally placed in CFS floor joists and bearers to accommodate the building services, which leads the reduction of floor height. The web openings significantl...

The 3-Dimensional (3D) printing technology in the construction sector has seen accelerating growth owing to its potential advantages. For this layer-based construction, a detailed investigation of fire performance is necessary. However, there are limited research studies for 3D Printed Concrete (3DPC) walls exposed to fire. Therefore, this paper in...

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...

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...

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...

Additive manufacturing in construction industry has been introduced as an aspiration for a more sustainable built environment and currently evolving with high demand amongst researches. This study is an investigation of the influence of polypropylene (PP) fibre addition on the workability parameters of a new extrudable concrete mixture. As the qual...

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...

This study investigates the effect of three-dimensional (3D) fibres on the fresh properties of self-compacting concrete (SCC) using three different fibre volume fractions (1%, 2% and 3%). Two different sizes of 3D fibres with perimeters of 115 mm and 220 mm were considered. Fresh properties were determined through slump flow, J-ring, V-funnel and s...

3D Concrete Printing (3DCP) has aa potentiality to produce complex, geometries and can modify the details rapidly using a printer integrated with a pump and nozzle. From the earlier studies on 3DCP, it is distinguished that the rheological behaviour of the material, printing direction, and printing time may have significant effects on the overall s...

The development of Additive Manufacturing (AM) in the construction industry has become an innovative solution for sustainable built environment. Many researches are undertaken globally to elucidate the significance of additive manufacturing to create safer and more flexible future construction industry. There is no doubt that AM and digitalization...