Spanning the multilevel boundaries of construction organisations: Towards the delivery of BIM-compliant projects

Purpose The purpose of this paper is to study the interdependent boundary-spanning activities that characterise the level of permeability of knowledge, information flow and learning among construction supply chains involved in the delivery of building information modelling (BIM)-compliant construction projects. Construction projects are mobilised through a number of interdependent processes and multi-functional activities by different practitioners with myriad specialised skills. Many of the difficulties that manifest in construction projects can be attributed to the fragmented work activities and inter-disciplinary nature of project teams. This is nevertheless becoming ever more pertinent with the rise of technology deployment in construction organisations. Design/methodology/approach The study combined experts’ sampling interviews and a case study research method to help offer better insights into the kind of emerging multilevel boundary practices as influenced by the rapidly evolving construction technological solutions. The experts’ sampling helped inform better understanding by unravelling the key changes in contemporary boundary configurations and related boundary-spanning practices within technology-mediated construction project settings. The case study also helped to establish the manifestation of best practices for managing multilevel boundaries in BIM-enabled construction project organisations. Findings The study has revealed that different generic organisational BIM strategies as developed in specialised boundaries are reconfigured as appropriate at the project level to produce project-specific BIM execution plan (BXP). The outcome of project BXP is dependent on the project organisational teams that cooperate in creating new solutions and on conceding space for negotiations and compromises which conflicting interests at the project level can find to be both desirable and feasible. The implementation effort is therefore contingent on mutual translation in which different actors with different insights instigate their practice through negotiation and persuasion which eventually are reinforced by contractual agreements and obligations. Originality/value The paper has presented a novel and well-timed empirical insight into BIM-enabled project delivery and best practices that span multilevel boundaries of construction organisations

The outlook of building information modeling for sustainable development

As human needs evolve, information technologies and natural environments require a wider perspective of sustainable development, especially when examining the built environment that impacts the central of social-ecological systems. The objectives of the paper are (a) to review the status and development of building information modeling (BIM) in regards to the sustainable development in the built environment, and (b) to develop a future outlook framework that promotes BIM in sustainable development. Seven areas of sustainability were classified to analyze forty-four BIM guidelines and standards. This review examines the use of BIM in sustainable development, focusing primarily on certain areas of sustainability, such as project development, design, and construction. The developed framework describes the need for collaboration with the multiple disciplines for the future adoption and use of BIM for the sustainable development. It also considers the integration between “BIM and green assessment criteria”; and “BIM and renewable energy” to address the shortcomings of the standards and guidelines

Premolis semirufa (Walker, 1856) Envenomation, Disease Affecting Rubber Tappers of the Amazon: Searching for Caterpillar-Bristles Toxic Components

Pararama, the popular name of the larval form of the moth Premolis semirufa inhabits rubber plantations in the Amazon region and the accidental contact of the skin with the caterpillar's bristles or cocoons results in immediate and intense heat, pain, edema, and itching. In many cases a chronic inflammatory reaction with immobilization of the joints occurs. The current study has evaluated the biological and immunochemical characteristics of the Pararama caterpillar bristles extract. Electrophoretic analysis showed the presence of several components, including a very intense 82 kDa band. This latter component was endowed with intense gelatinolytic activity, as observed in zymography assays. Further analysis revealed that the extract also contained hyaluronidase activity but is devoid of phospholipase A2 activity. In vivo assays, using mice, showed that the extract was not lethal, but caused significant edema and induced intense infiltration of inflammatory cells to the envenomation site. The extract also induced high specific antibody titers, but no autoantibodies were detected. The data obtained, so far, demonstrate the existence of a mixture of different enzymes in the bristles of Premolis semirufa caterpillar, which can act together in the generation and development of the clinical manifestations of the Pararama envenomation

BIM based collaborative and interactive design process using computer game engine for general end-users

Background The emerging Building Information Modelling (BIM) in the Architectural, Engineering and Construction (AEC) / Facility Management (FM) industry promotes life cycle process and collaborative way of working. Currently, many efforts have been contributed for professional integrated design / construction / maintenance process, there are very few practical methods that can enable a professional designer to effectively interact and collaborate with end-users/clients on a functional level. Method This paper tries to address the issue via the utilisation of computer game software combined with Building Information Modelling (BIM). Game-engine technology is used due to its intuitive controls, immersive 3D technology and network capabilities that allow for multiple simultaneous users. BIM has been specified due to the growing trend in industry for the adoption of the design method and the 3D nature of the models, which suit a game engine's capabilities. Results The prototype system created in this paper is based around a designer creating a structure using BIM and this being transferred into the game engine automatically through a two-way data transferring channel. This model is then used in the game engine across a number of network connected client ends to allow end-users to change/add elements to the design, and those changes will be synchronized back to the original design conducted by the professional designer. The system has been tested for its robustness and functionality against the development requirements, and the results showed promising potential to support more collaborative and interactive design process. Conclusion It was concluded that this process of involving the end-user could be very useful in certain circumstances to better elaborate the end user's requirement to design team in real time and in an efficient way