Automatic code compliance with multi-dimensional data fitting in a BIM context

BIM-based tools can contribute to addressing some of the challenges faced by structural engineering practitioners. A BIM-based framework for the development of components that deliver Automatic Code Compliance (ACC) is presented. The structural design problems that such components solve are categorised as simple, where ACC can be implemented directly, or complex, where more advanced approaches are needed. The mathematical process of Multi-Dimensional Data Fitting (MDDF) is introduced in order for the latter, enabling the compression of complex engineering calculations to a single equation that can be easily implemented into a BIM software engineering package. Proof-of-concept examples are given for both cases: offsite manufactured structural joists are utilised as a non-recursive example, implementing the results obtained in the manufacturer's literature; the axial capacity of metal fasteners in axially loaded timber-to-timber connections are utilised as an example of recursive problems. The MDDF analysis and the implementation in a BIM package of those problems are presented. Finally, the concept is generalised for non-structural aspects at a framework level, and the challenges, implications, and prospects of ACC in a BIM context are discussed

Structural design with Accoya wood

The benefits from acetylation of wood to enhance resistance against fungal decay and dimensional stability have been known for many years. Since 2007 Accsys Technologies has been commercially producing Accoya wood that is based on acetylation of Radiata pine. Accoya has shown its potential for many applications, even for structural use. However, due to limited engineering data each project had to be evaluated on a case-by-case basis. Based on research at various universities and institutes, Accsys Technologies has in combination with TimberSolve and ARUP, developed a handbook to assist designers and structural engineers produce reliable, durable and consistent designs utilising Accoya wood in structural applications

Briefing: Structural insulated panels in modern construction

Structural insulated panels (SIPs) are typically formedfrom a thick layer of polystyrene foam sandwichedbetween two layers of oriented strand board. They haveimproved insulation qualities due to reduced cold bridgingeffects and satisfy all other building regulations. They arealso durable if a stringent manufacturing procedure isused. SIPs are a sustainable and cost-effective alternativeto traditional timber-frame construction

Crane erection of timber-trussed rafter roofs

Traditional methods of timber frame construction arelabour-intensive and time-consuming. This paper details astudy of the crane-erect method of construction whichutilises on-site preparatory work and off-site fabrication.The paper also examines the project planning alterationsand implications which are required for crane-erect construction to be successful and the feasibility of crane erect with regard to improved time, cost and safety