Integrated Approaches to Digital-enabled Design for Manufacture and Assembly: A Modularity Perspective and Case Study of Huoshenshan Hospital in Wuhan, China

Countries are trying to expand their healthcare capacity through advanced construction, modular innovation, digital technologies and integrated design approaches such as Design for Manufacture and Assembly (DfMA). Within the context of China, there is a need for stronger implementation of digital technologies and DfMA, as well as a knowledge gap regarding how digital-enabled DfMA is implemented. More critically, an integrated approach is needed in addition to DfMA guidelines and digital-enabled approaches. For this research, a mixed method was used. Questionnaires defined the context of Huoshenshan Hospital, namely the healthcare construction in China. Then, Huoshenshan Hospital provided a case study of the first emergency hospital which addressed the uncertainty of COVID-19. This extreme project, a 1,000-bed hospital built in 10 days, implemented DfMA in healthcare construction and provides an opportunity to examine the use of modularity. A workshop with a design institution provided basic facts and insight into past practice and was followed by interviews with 18 designers, from various design disciplines, who were involved in the project. Finally, multiple archival materials were used as secondary data sources. It was found that complexity hinders building systems integration, while reinforcement relationships between multiple dimensions of modularity (across organisation-process-product-supply chain dimensions) are the underlying mechanism that allows for the reduction of complexity and the integration of building systems. Promoting integrated approaches to DfMA relies on adjusting and coupling multi-dimensional modular reinforcement relationships (namely, relationships of modular alignment, modular complement, and modular incentive). Thus, the building systems integrator can use these three approaches to increase the success of digital-enabled DfMA

DfMA: Towards an integrated strategy for a more productive and sustainable construction industry in Australia

Design for manufacture and assembly (DfMA) is an important part of the future of the construction industry due to the promise of speed of project delivery, quality control, worker safety, and waste minimization onsite via the purposeful design for manufacture and assembly offsite. However, the adoption of DfMA in Australia has been slow. This paper investigates the barriers prohibiting widespread uptake and how digital construction will be a catalyst for improving use on commercial-scale projects. A total of six leading experts were interviewed to elicit their opinions, and seven recent case studies of high-rise modular apartment and hotel buildings constructed by Hickory were cross-referenced as evidence of DfMA capability. The experts suggested that the reasons for slow adoption in Australia were community mindset, government regulations and incentives, planning and building codes, unionization and business politics, finance, and supply chain management. The case studies suggest that compatible building type and transportation distance are also factors. These barriers can be addressed by the clever integration of building information modelling tools with lean construction processes as part of a proposed strategy leading to smarter (more productive) and better (more sustainable) outcomes predicated on growth in digital construction practices. The paper concludes with a proposed framework for change that conceptualizes the ‘ecosystem’ needed to support widespread DfMA in the Australian context, including the paradigm shift from building to manufacturing/assembly, the displacement of workers from onsite to offsite activity, and the expansion of interdisciplinary design and construct collaboration

Product Information Quality : A sustainability challenge in design and construction

The adverse consequences of building product performance pose sustainability problems for the built environment. Effective approaches to these problems require a clear understanding of building product information and its provision by manufacturers. This is an essential need for sustainable growth in industrialized construction, a system characterized by the expanded role of the manufacturing sector. Furthermore, a sustainable transition to digitalization in the construction industry needs digital interfaces capable of providing the information required for sustainable design and construction. The aim of this research is to contribute to an increased understanding of how building product information can support sustainability in the built environment. To this end, two fundamental aspects have been examined: the quality of information on the sustainability performance of building products and the usability of the digital interfaces providing such information. This research relies on critical realism and adopts a qualitative methodology to analyze and explain the mechanisms of creating and providing product information in four sequential case studies. Systems thinking and process tracing method have been applied to analyze the flow of product information in the construction industry, the operative processes that can support sustainability, and the stakeholders involved. In the first three case studies, the operative process is the diffusion of innovative ventilation products with superior indoor environmental performance. The first case study identifies the problems affecting this process. The second and third case studies, respectively, explore how product information and information exchange on building information modeling (BIM) library platforms can support the process. Influenced by the Grenfell Tower fire in London in 2017, the fourth case identifies the product information problems that can contribute to harmful facade fires threatening sustainability in the built environment. The study examines the capabilities for avoiding the identified problems and explores how an operative process of design, manufacturing, and construction of fire-safe facades can be supported. The findings reveal problems concerning the quality of information on the sustainability performance of products and the methods used by manufacturers for presenting such information. These problems have limited the availability and usability of the information in product databases and BIM object libraries. This defective flow of information affects the design process and can lead to unacceptable consequences such as facade fires. In addition, the inefficient methods of supplying product information have impeded the adoption of innovative products with improved sustainability performance. To address these issues, this research proposes the standardization of product information in collaboration with effective legislation and establishes a framework for evaluating the provision of information on the sustainability performance of building products. The theoretical contributions of this work include five tools: (1) a model for applied critical realism towards sustainability, (2) a matrix for the qualitative analysis of BIM object library platforms, (3) a matrix for evaluating the quality of information and digital interfaces, (4) a model of the functions of the standards on product information, and (5) a conceptual model of product information for sustainable design and construction

A project management framework for enhanced productivity performance using building information modelling

Although the Singapore government has mandated submissions of building plans in building information modelling (BIM) format since July 2013, this does not yet seem to lead to enhanced productivity performance. BIM collaboration between designers and downstream contractors appears to remain inadequate. While many studies have been conducted on using BIM for better project outcomes, studies that relate BIM with the identification of non-value adding activities in the project lifecycle and the reduction of the resulting wastes are at infancy stage. This paper aims to propose a project management framework for enhancing the productivity of building projects in Singapore, which forms Phase I of an ongoing research project. A two-pronged approach is presented. Firstly, non-value adding activities in the current project delivery process that uses BIM partially in Singapore are identified by comparing the typical current process with full BIM-based processes; such activities are cut down after process transformation in terms of people, process, and technology. Secondly, time savings derived from reducing the wastes caused by these activities are quantified. The proposed framework was validated by a case study of a local residential project. It was concluded that this framework provides a valuable tool for project teams to enhance productivity performance

DFMA-based design guidelines for high-rise modular buildings

This research aims to develop DfMA-based design guidelines for high-rise modular buildings to facilitate the widespread application and development of innovative OSC technology. This research contributes to linking the DfMA philosophy with the constructability of high-rise modular buildings in terms of manufacturability, transportability and assemblability

Off-site construction in highways projects: management, technical and technology perspectives from the United Kingdom

With a rich off-site construction (OSC) experience accumulated over the last two centuries, the United Kingdom (UK) is looking up to OSC to deliver its critical infrastructure projects in the next decade. Highway projects are good fits for OSC with their project characteristics. However, the extant OSC literature for highways is mostly about OSC elements’ design performance. Also, the OSC literature is predominantly building sector focused. Addressing this gap, the paper presents the findings of a research project, sponsored by the UK’s National Highways, which aims at understanding what needs to be done to improve the current OSC condition for highways projects in the UK from a management, technical and technological perspective. After a detailed literature review, 20 in-depth interviews with subject experts were conducted. The initial findings were validated through five highways projects as cases and then ranked by two focus groups using the Delphi method. Alongside revealing the current OSC condition, 95 suggestions (43 management-related, 23 technical opportunities, and 29 technology-related) were elicited and ranked by their impact potential. Some of the high-potential suggestions are developing a collaborative OSC decision making framework, a product design mindset, improving OSC digital product libraries, creating mobile OSC factories, and a design options repository. The findings revealed that many OSC challenges identified in the general or building sector focused OSC discussions exist also in the highways sector. It is recommended that the identified high and medium impact potential suggestions are prioritized by practitioners and policy makers to improve the current OSC condition

Advances on Mechanics, Design Engineering and Manufacturing III

This open access book gathers contributions presented at the International Joint Conference on Mechanics, Design Engineering and Advanced Manufacturing (JCM 2020), held as a web conference on June 2–4, 2020. It reports on cutting-edge topics in product design and manufacturing, such as industrial methods for integrated product and process design; innovative design; and computer-aided design. Further topics covered include virtual simulation and reverse engineering; additive manufacturing; product manufacturing; engineering methods in medicine and education; representation techniques; and nautical, aeronautics and aerospace design and modeling. The book is organized into four main parts, reflecting the focus and primary themes of the conference. The contributions presented here not only provide researchers, engineers and experts in a range of industrial engineering subfields with extensive information to support their daily work; they are also intended to stimulate new research directions, advanced applications of the methods discussed and future interdisciplinary collaborations