Infrastructure Engineering - Research Publications

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Type: Conference Paper × Author: Aye, Lu × Author: Mendis, Priyan × Author: Samarasinghe, Tharindu × Author: Gunawardena, Don ×

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    An optimum construction strategy for multi-story residential prefabricated modular buildings
    Thalpe Guruge, ; Samarasinghe, ; Gunawardena, ; Nguyen, T ; Mendis, P ; Ngo, T ; Aye, L (ZEMCH Network, 2018-01-29)
    Prefabrication is recognised as the way forward in building construction by the industry as it delivers quality yet affordable mass customisable houses faster than traditional on-site construction. The prefabrication of multi-story buildings transforms traditional construction into off-site manufacturing of repetitive components. Currently there are three main structural systems being adopted for modular multi-story buildings; 1) Building with a rigid in-situ central core to which the modules are connected, 2) A podium structure which acts as a base where modules are placed on top of it, 3) Fully modular structure with strategically placed load bearing modules. Current investigations on these systems focus on improving their benefits such as construction time, cost, safety and quality based on one variable at a time. However, there is a lack of studies with a holistic approach to identify the optimum structural system. This paper aims to define an Optimum Modular System Index (OMI) which will be based upon three main indices; Assembly cost penalty Index (ACPI), Onsite handling cost penalty Index (HCPI) and Concrete cost penalty Index (CCPI). Determination of OMI is expected to provide a framework to identify the optimum construction system for multi-story residential prefabricated modular buildings.
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    BIM and modular MEP systems for super-tall and mega-tall buildings
    Samarasinghe, T ; Mendis, P ; Aye, L ; Gunawardena, D ; Karunaratne, R (University of Peradeniya, 2017-12-07)
    Mechanical, Electrical and Plumbing (MEP) work in high-rise construction can be very challenging due to the different crews involved during installation. Conflicts between the crews generally cause delays in project schedule and result in additional cost due to rework. This study will identify the MEP conflicts in high-rise construction through observations made by the author during the time spent in case study projects. This study focuses on the use of Modular MEP systems in high-rise construction to eliminate the current conflicts. Traditional MEP construction process was reviewed to identify changes to the process when using modular MEP systems. Challenges in implementing modular MEP in high- rise construction is discussed and an implementation strategy is proposed. Role of Building Information Modelling (BIM) in modular MEP construction is highlighted in the study and its involvement during different stages of the modularisation process is discussed.