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Modular Facilities—Meeting the Need for Flexibility
Published in James Agalloco, Phil DeSantis, Anthony Grilli, Anthony Pavell, Handbook of Validation in Pharmaceutical Processes, 2021
Maik Jornitz, Sidney Backstrom
Modular construction off-site is generally considered to be building an entire facility at a manufacturing location module by module, then erecting a structure entirely of those modules and connecting the modules, also at the manufacturing location. These modular facilities can contain 60 to 150 modules or containers, which are typically welded together at the final location. The facility is then tested for functionality and disassembled, whereupon the individual modules are shipped and re-erected at the ultimate production site. Figures 3.2, 3.3, and 3.4 provide an example of this process. At a high level, the advantage to this approach is being able to build facilities where little to no infrastructure exists. Also, being able to receive a full turnkey solution from one provider can be attractive to prospective facility owners. However, assembling the 60 to 150 units means additional construction time needs and for a certain time period and a larger headcount to assemble and weld. Once the facility is built, it will stay where it is, and it serves the application it was designed for, which makes the option inflexible.
Prefabrication in construction: A preliminary study in India and Portugal
Published in Paulo Jorge da Silva Bartolo, Fernando Moreira da Silva, Shaden Jaradat, Helena Bartolo, Industry 4.0 – Shaping The Future of The Digital World, 2020
S. Vijayakumar, F. Craveiro, V. Lopes, H. Bártolo
Dakwale et al. (2011) sustains that there is a growing demand for new construction methods, faster delivery times, lighter structural components, and lower life-cycle costs. Modular construction, based on the production of standardized structural components in a factory environment subsequently assembled onsite, include an innovative set of systems, which can be used separately or in hybrid systems depending on project complexity and scale. Prefabrication, including either completely modular buildings or individual prefabricated components, can increase productivity and efficiency with a high-quality level. However, these prefabrication techniques require a high level of knowledge and experience, coupled with a high quality of onsite application.
Modular Wind Energy Systems
Published in Yatish T. Shah, Modular Systems for Energy and Fuel Recovery and Conversion, 2019
Multipole, permanent-magnet, synchronous machines have been proposed by Spooner and Williamson [113] as direct-coupled generators for large grid-connected wind turbines. A manufacturer would need to prepare a wide range of detailed designs and stock a large quantity of parts and materials to cover the range of likely sizes and ratings needed. Modular construction greatly reduces this overhead and brings additional benefits through ease of assembly and repair. The paper illustrates how such a machine can be integrated into a variable-speed system. A modular rotor design using buried ferrite magnets with split pole pieces is described in this study. The magnets can be built up economically from standard 150/spl times/100/spl times/25 mm blocks. A modular stator core and stator winding are described along with a modular supporting structure, and it is shown that this construction leads naturally to a modular approach to the first stage of power conversion for a variable-speed system. The derivation of machine parameters and supporting laboratory studies are reported.
Implementing modular integrated construction in high-rise high-density cities: perspectives in Hong Kong
Published in Building Research & Information, 2023
Modular construction has been promoted in many jurisdictions under different terms such as modular integrated construction (MiC) in Hong Kong (Pan et al., 2019), prefabricated prefinished volumetric construction (PPVC) in Singapore (Hwang et al., 2018) and modern methods of construction (MMC) in the UK (RICS, 2018). In general, modular construction refers to an innovative construction method whereby three-dimensional (3D) volumetric units that form part of the completed building or structure are produced in an off-site factory, and then transported to the site for on-site assembly (Gibb, 1999; Pan et al., 2019; Thai et al., 2020). Modular construction advances traditional construction methods to allow simultaneous construction and manufacturing by using the Design for Manufacture and Assembly (DfMA) theory and advanced manufacturing and logistics technologies (Bao et al. 2022; Yang et al., 2021). Traditional site-based works are mostly transferred to factories where modules are prefabricated integrating structural, architectural and building services works (Gibb, 1999; Pan et al., 2019).
Progressive collapse and robustness of modular high-rise buildings
Published in Structure and Infrastructure Engineering, 2022
Huu-Tai Thai, Quang Vu Ho, Wenqian Li, Tuan Ngo
Although modular construction is not a new concept, it is becoming more popular due to recent advances in construction materials, computational modelling methods and construction technologies. Modular construction can allow for up to 95% of a building to be prefabricated in a controlled factory environment. This offers faster and safer manufacturing with better quality control, and reduces environmental impacts compared to traditional onsite construction (Lawson, Ogden, & Bergin, 2012; Lawson & Richards, 2010). The application of modular construction has been increasing in recent years especially in the US, the UK, Australia and Singapore, where housing shortages and labour costs are significant concerns. However, its practical application for high-rise buildings is still very limited with less than 1% of modular buildings (Pan, Yang, & Yang, 2018). This is due to the fact that the construction industry is not confident in implementing such technology due to the lack of design guidelines (Ferdous, Bai, Ngo, Manalo, & Mendis, 2019; Lacey, Chen, Hao, & Bi, 2018), as well as insufficient understanding of the stability and robustness of modular buildings.
Extending the current model view definition standards to support multi-storey modular building projects
Published in Architectural Engineering and Design Management, 2018
Modular construction is known for its economic advantages, sustainability, and high construction quality of the modules because of controlled factory construction environment (Goulding, Pour Rahimian, Arif, & Sharp, 2015). Initially, application areas of modular buildings were limited to single- or two-storey dwellings and low-rise multi-storey buildings based on wood-frame construction. During the past decade, the use of alternative construction materials such as light-gauge steel for the structural load bearing elements in the modules and integration of the modular system with site-built supporting structures such as shear walls made application of this technology to mid-rise and high-rise buildings more feasible (Lawson & Ogden, 2008; Lawson & Richards, 2010). An example of high-rise modular projects in the United States is the 32-storey Atlantic Yard B2 Building. The building holds 363 market-rate and affordable-rate rental units and 4000 square feet of retail space (Nonko, 2013).