Design in Modular Construction

Lawson, Mark; Ogden, Ray; Goodier, Chris I.

doi:10.1201/b16607

Cited by 226 publications

(221 citation statements)

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“…Components in this contexts would refer to beams, columns and frames. Components assembly employ the usage of hybrid systems that includes components together with timber framing and fully modular sanitary compartments [17]. While, the benefits of the onsite total construction and assembling prefabricated elements are achieved, it still consumes more time than other methods.…”

Section: Components Assembly (1d)mentioning

confidence: 99%

“…Off-site construction adoption by the building industry returns back to early 1990's, when large number of residential buildings have been constructed using this building system worldwide [17][18][19]. Since then, a wide number of research were conducted to develop and evaluate offsite construction and prefabrication methods' impact on the building industry and environment.…”

Section: Introductionmentioning

confidence: 99%

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Conceptual framework for off-site roof stacking construction

Amer

Mustafà

Attia

2019

Journal of Building Engineering

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A B S T R A C TA great deal of interest in off-site construction has been remarkable over the last decade. However, building on the rooftops of existing building has not been given a significant importance as a subject of research, despite its dependence on off-site construction and prefabrication. Thus, this paper develops a novel conceptual framework to support a multidisciplinary decision making for selecting off-site prefabricated constructional system for roof stacking. The multidisciplinary approach includes each of safety, logistics, cost, time, environmental impact, and quality of construction as major criteria in the decision making process. This paper is the outcome of an exhaustive investigation of more than 136 roof stacking projects built during the last 20 years. The development of framework is supported by a feedback validation loop based on semi-structured interviews with experts in the field of roof stacking and off-site construction.

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Section: Components Assembly (1d)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Conceptual framework for off-site roof stacking construction

Amer

Mustafà

Attia

2019

Journal of Building Engineering

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“…Modular building system is a highly prefabricated system . The box‐type 3D modules can be conveniently positioned and interconnected on site.…”

Section: Introductionmentioning

confidence: 99%

Optimal lateral aseismic performance analysis of mega‐substructure system with modularized secondary structures

2017

Structural Design Tall Build

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Summary A major type of mega‐substructure system is yet to fulfill its full potential of vibration control because of the fragility originating from excessive inter‐story drift of its secondary structures during earthquake. We propose an innovative subtype of mega‐substructure system to overcome this fragility and further improve its lateral aseismic performance. This subtype takes advantage of modular construction techniques. The secondary structures, which consist of suspended discrete modules, provide protection to nonstructural members against excessive inter‐story drift. Additionally, springs that provide inter‐story stiffness remain elastic. These effects extend the inter‐story drift limit of secondary structure and make sufficient relative motion possible. We carried out single‐objective and dual‐objective optimizations to derive optimum parameters and capture the potentials of representative models. Mean square responses under power spectral density functions of ground acceleration were set as optimization objectives. It is shown that the proposed systems further suppress the response of primary structure at the expense of additional response of secondary structure, which can be accommodated by the aforementioned protection effect. Mechanisms are revealed in the perspective of transfer function curves. Robustness and time history performances are also verified.

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“…More broadly, modular prefabricated timber construction is of increasing interest internationally for essentially the same reasons [10][11][12]. However, knowledge of the structural mechanics of timber structures and digitally-fabricated structures is still sparse compared to traditional structural materials and systems.…”

Section: Modular Timber Constructionmentioning

confidence: 99%

Digital fabrication strategies for timber thin-walled sections

Alqaryouti¹,

Gattas²,

Shi³

et al. 2016

WIT Transactions on the Built Environment

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A rise in digital fabrication technologies has led to numerous recent advances in the design and manufacture of woodworking joints. Computational generative processes can be used to create a part with integral mechanical attachments for friction-fit, adhesion-less connections between parts. These processes can additionally create machine code for production of such parts on computernumerically controlled (CNC) cutters. This paper investigates such computational processes for digital design and manufacture of timber thin-walled structural sections. Assembly procedures are first presented for rectangular hollow sections and I-sections, with a series of timber prototypes produced to demonstrate their CNC production. An experimental analysis on square hollow sections under uniaxial compressive loading is then conducted. Tight fit digitally-fabricated sections are seen to possess a structural capacity approaching that of the glued sections. Prototypes with different assembly tolerances and grain directions produce a range of novel failure modes and give insight into potential failure paths of digitally-fabricated timber sections.

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Design in Modular Construction

Cited by 226 publications

References 0 publications

Conceptual framework for off-site roof stacking construction

Conceptual framework for off-site roof stacking construction

Optimal lateral aseismic performance analysis of mega‐substructure system with modularized secondary structures

Digital fabrication strategies for timber thin-walled sections

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