Development of cross laminated timber-cold-formed steel composite beam for floor system to sustainable modular building construction

Navaratnam, Satheeskumar; Small, Deighton Widdowfield; Gatheeshgar, Perampalam; Poologanathan, Keerthan; Thamboo, Julian; Higgins, Craig; Mendis, Priyan

doi:10.1016/j.istruc.2021.03.051

Cited by 39 publications

(21 citation statements)

References 35 publications

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“…However, limited research has been carried out in this area [36][37][38][39][40][41][42][43][44]. Satheeskumar et al [45] investigated sustainable benefits of a crosslaminated timber-CFS composite beam, and Gatheeshgar et al [46] studied the role of an optimised CFS beam in modular constructions. A cross-laminated timber-CFS composite beam has enhanced flexural capacity by 20% compared to the individual capacities of both members [45], whereas optimised CFS sections such as Lipped Channel Beam (LCB), folded flange sections and super sigma sections have increased moment capacity by 30%, 60% and 65%, respectively [46].…”

Section: Countrymentioning

confidence: 99%

Sustainable Performance of a Modular Building System Made of Built-Up Cold-Formed Steel Beams

et al. 2021

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Modular Building Systems (MBS) offer numerous benefits in terms of productivity, sustainability and safety. Therefore, MBSs are considered as a viable option to sort out the housing crisis in Britain as well as to drive Britain towards sustainable construction. Development in materials, manufacturing techniques, connection types and structural designs with respect to offsite construction is essential to achieve sustainable goals. Recent advancements in steel manufacturing, including Cold-Formed Steel (CFS), have showed potential benefits in structural performance compared to concrete and timber. Meanwhile, research was conducted to enhance the structural capacities of CFS sections by introducing different cross-sections, composite sections and techniques including optimization. Built-up sections were developed by connecting more than one channel section, and various research studies were conducted to assess their structural performances. However, sustainable performance of built-up sections in modular constructions is still unknown. Hence, this paper intends to develop an MBS using built-up sections for better sustainable performance. Literature review was carried out on the sustainability benefits of MBSs in terms of economic, environmental and social aspects. In addition to that, numerical analysis was performed to investigate the flexural capacity of built-up sections with different screw arrangements to address the sustainable aspects of modular construction by introducing novel sections. The numerical description, results and validations are also stated. Numerical results revealed that flexural capacities of built-up sections are improved up to 156% than those of single sections. Finally, the utilization of built-up sections in modular construction with sustainability enhancement is addressed and illustrated in a conceptual diagram.

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Section: Countrymentioning

confidence: 99%

Sustainable Performance of a Modular Building System Made of Built-Up Cold-Formed Steel Beams

et al. 2021

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“…2b). The exterior walls are prefabricated concrete blocks composed of stucco [39], concrete and steel, and the exterior window is made of 6mm clear glass. In Table 1mentions the length of the layer conforming to each of the structural envelopes of the house.…”

Section: Identificationmentioning

confidence: 99%

Assessing the thermal performance of a conventional architecture in a dry warm climate

Villabona

Terés-Zubiaga

Maldonado

et al. 2021

Heritage and Sustainable Development

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In this article, we present the results of the evaluation of the thermal performance of a conventional home in a dry warm climate, a case study in Bucaramanga, Colombia. This simulation, evaluation, and analysis make it necessary since currently in the case study area there is no thermal assessment of the dwellings, which are old houses built with resistive and mechanical analyses, but without regard to thermal behavior or thermal housing comfort. This evaluation is done by means of software simulation. Thus, a valid simulation identifies the weather data present in a dry warm climate zone and determines the geographical location and behavior in the solar diagram. Likewise, the thermal characterization of the soil and the construction materials of support and envelopes of the architecture is performed, to establish its thermal transmittance, thermal resistance, and thermal capacity. As a result of the research, the thermal behavior of the house is presented by means of the calculations made that determine the thermal behavior of the envelopes, energy load balancing, and housing thermal comfort based on the ASHRAE 55 standard by Fanger's method. Consequently, with the above, the results of the simulation and a detailed analysis of the recorded data are presented in the document.

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“…On the other hand, researchers have showed the benefits of timber-steel composites. Navaratnam et al [67] presented the feasibility of developing cross-laminated timber (CLT) and cold-formed steel (CFS) composite beams for a floor system. The CLT-CFS composite beams increased the ultimate bending performance by 20%, according to the findings.…”

Section: Structural Performancementioning

confidence: 99%

Understanding the Use of Timber in Semi-Arid Regions: Kurdistan Region of Iraq, a Case Study

2021

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The use of timber in the building industry has expanded in many countries over the last 20 years due mainly to its light weight, low adverse impact to the environment, and fair mechanical properties. Despite the development of the construction industry in the Kurdistan Region in Iraq (KRI) in recent years, timber product utilization is still very limited. Therefore, the purpose of this study was to investigate the feasibility of further utilizing timber-based products in the building industry in semi-arid regions using the KRI as a case study. A review of timber product utilization in the region was conducted first and the general properties of timber products were followed. Based on this, a survey focusing on the current situation and suitability of localized grown timber products was carried out to study the feasibility. This article concludes that the use of timber-based products in the KRI presents different barriers, with the availability in the market and technicality of construction with the material being the strongest ones. The article recommends that it is imperative to further research how to promote timber’s utilization in the KRI to be in line with sustainable development.

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Development of cross laminated timber-cold-formed steel composite beam for floor system to sustainable modular building construction

Cited by 39 publications

References 35 publications

Sustainable Performance of a Modular Building System Made of Built-Up Cold-Formed Steel Beams

Sustainable Performance of a Modular Building System Made of Built-Up Cold-Formed Steel Beams

Assessing the thermal performance of a conventional architecture in a dry warm climate

Understanding the Use of Timber in Semi-Arid Regions: Kurdistan Region of Iraq, a Case Study

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