Theoretical investigation of the compression limits of sealing structures in complex load transferring between subsea connector components

Zhang, Kang; Huang, Hui; Duan, Menglan; Hong, Yi; Estefen, Segen F.

doi:10.1016/j.jngse.2017.03.034

“…Since there are so many labour intensive steps workers often take shortcuts to which have consequences later in the buildings life. For example pushing the backing rod too far in may result in adhesion failure as the layer of caulking/sealing must not be too thick as not to be able to accommodate for the tolerances required when the building/panels move be it due to thermal expansion or for dynamic reasons [9]. The adhesion fails and separation occurs as the caulking/sealant is not in the narrow hourglass figure and hence the increase pulling force acting against the adhesion.…”

Section: Conventional Solutionmentioning

confidence: 99%

Manufacturing, Modeling, Implementation and Evaluation of a Weatherproof Seal for Prefabricated Construction

Orlowski

¹

,

Shanaka

²

,

Mendis

³

2018

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Prefabricated forms of construction have led to the rapid onsite assembly of buildings however there are still on-site tasks and processes which can be reevaluated and redone specifically in keeping with the principles of prefabrication instead being adapted to fit its purpose. One such process is that of waterproofing between prefabricated panels and modules which come from the factory fully complete façade and all. Conventional means of waterproofing can be used however it results in more work done on site, potential delays and generally requires access from the external face of the building. This paper presents the Modelling, Implementation and Evaluation of purpose developed weatherproof seals specific for Prefabricated Construction. An overview is provided of the entire development process and specific focus is given to the modeling using finite element analysis (FEA) computer simulations, manufacturing and testing which then resulted in the implementation in a prefabricated panelised building which is used as a case study and the means of further evaluation. These strategies have enabled an efficient and robust prefabricated waterproofing solution specific for this form of construction to be understood and implemented. The resulting case study has successfully verified the time and cost savings when compared to conventional techniques whilst still providing a durable and effective weatherproof seal for prefabricated panelised and modular systems.

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“…Using sealant as the primary means of weatherproofing without further protection such as a drained joint is fundamentally not a rigorous solution especially considering that the joint can only be inspected from the outside. The time where the use of sealant that can be best relied upon in this manner is when used between glass to glass joint's where both sides can be easily inspected and the design requires openness [11].…”

Section: Conventional Solutionmentioning

confidence: 99%

“…Poor workmanship along with sealant distress are amongst the leading reasons for why a building will leak [11]. Therefore there is a need to develop new seals which do not rely as heavily on workmanship and are able to be completed offsite are required for prefabricated forms of construction.…”

Section: Conventional Solutionmentioning

confidence: 99%

Design and Development of Weatherproof Seals for Prefabricated Construction: A Methodological Approach

Orlowski¹,

Shanaka²,

Mendis³

2018

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Satisfactory weatherproofing of buildings is vital to maximise their design life and performance which requires the careful design of external sealing technologies. Systems commonly available have served well in conventional construction however with many prefabricated systems emerging in the building industry new and novel means of weatherproofing between panels and modules need to be developed purpose specific to this application. This paper presents a holistic and fundamental methodological approach to Design and Development of waterproof seals and has been applied specific for prefabricated panelised and modular systems. Two purpose specific weatherproof seals are finally presented. Flow charts of the overview of the suggested methodological approach and the processes within which include DfMA that have been incorporated into understanding and developing seals for this practical application. These strategies have enabled a resourceful and holistic set of processes that can be adapted and used for similar forms of product research in new and developing areas of construction such as prefabrication. The design and development process is thoroughly investigated and has resulted in an exploration of the technical challenges and potential solutions which take into consideration factors from installation limitations to building tolerances.

show abstract

“…Since there are so many labour intensive steps workers often take shortcuts to which have consequences later in the buildings life. For example pushing the backing rod too far in may result in adhesion failure as the layer of caulking/sealing must not be too thick as not to be able to accommodate for the tolerances required when the building/panels move be it due to thermal expansion or for dynamic reasons [7]. The adhesion fails and separation occurs as the caulking/sealant is not in the narrow hourglass figure and hence the increase pulling force acting against the adhesion.…”

Section: Conventional Solutionmentioning

confidence: 99%

Design and Development of Weatherproof Seals for Prefabricated Construction: A Methodological Approach

Orlowski¹,

Shanaka²,

Mendis³

2018

Preprint

View full text Add to dashboard Cite

Satisfactory weatherproofing of buildings is vital to maximise their design life and performance which requires the careful design of external sealing technologies. Systems commonly available have served well in conventional construction however with many prefabricated systems emerging in the building industry new and novel means of weatherproofing between panels and modules need to be developed purpose specific to this application. This paper presents a holistic and fundamental methodological approach to Design and Development of waterproof seals and has been applied specific for prefabricated panelised and modular systems. Two purpose specific weatherproof seals are finally presented. Flow charts of the overview of the suggested methodological approach and the processes within which include DfMA that have been incorporated into understanding and developing seals for this practical application. These strategies have enabled a resourceful and holistic set of processes that can be adapted and used for similar forms of product research in new and developing areas of construction such as prefabrication. The design and development process is thoroughly investigated and has resulted in an exploration of the technical challenges and potential solutions which take into consideration factors from installation limitations to building tolerances.

show abstract

Theoretical investigation of the compression limits of sealing structures in complex load transferring between subsea connector components

Cited by 32 publications

References 13 publications

Manufacturing, Modeling, Implementation and Evaluation of a Weatherproof Seal for Prefabricated Construction

Manufacturing, Modeling, Implementation and Evaluation of a Weatherproof Seal for Prefabricated Construction

Design and Development of Weatherproof Seals for Prefabricated Construction: A Methodological Approach

Design and Development of Weatherproof Seals for Prefabricated Construction: A Methodological Approach

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