A process model to support design and construction

This research is focused on developing a highly detailed understanding of current organisational interactions and information flows leading to a definition of the process model for the environment into which information and communication technology (ICT) applications will be placed. The authors of this paper propose a theoretical process model and the associated detailed information structure which reflects the complexity of information, stakeholder interaction and intellectual property concerns which are currently seen in the construction industry. This is being developed and tested against a field study renovation project. The field study project identifies information flows and interactions between stakeholders such as designers, project managers, clients, contractors, subcontractors and suppliers. The process model which is being established shows very high levels of complexity in dependencies and interdependencies between implicit and explicit information within the project design and construction teams. Without an understanding of these detailed and complex process interactions, proposals for the application of ICT to the construction industry will not reflect the requirements of those for whom they are being developed.

Design and construction of a micropump for drug delivery applications

This paper presents design, construction, and evaluation of a micropump for drug delivery applications. The proposed micropump consists of three components: fluidics, electronics, and software. The fluidics component includes a silicone elastic diaphragm, a microservo, housing and two check valves. The diaphragm is modeled and simulated to establish its geometrical specifications. The housing is built using a rapid prototype machine. The electronics component consists of a microcontroller, a microswitch array, a simple display and a power unit. The software component is written in C and receives inputs from user, controls the microservo speed and displays the programmed speed. A number of experiments are conducted to evaluate the performance and capabilities of the micropump. The experiments focus on measurement of flow rate, dosage and duration of operation. A discussion of the performance and capabilities of the developed micropump is also given.

Height and construction costs of residential buildings in Hong Kong and Shanghai

A widely recognised theme of construction economics suggests that the cost of construction per square metre increases as building height rises. However, after many years, research conducted regarding the height and cost issue have established a classic relationship between those two, well known as a U-shaped curve. This paper describes the study of height-cost relationship of high-rise residential buildings in Shanghai and Hong Kong. Initial findings indicated that the curved relationships of height-cost of residential buildings in Shanghai and Hong Kong exhibit different profiles. The differences suggest that, Hong Kong contractors have more expertise in multi-storey and high-rise construction than contractors in Shanghai. The dissimilarities also imply that different sets of criteria should be applied in the judgement of height affects cost in different locations. Many factors could be contributors, such as the history and experience in constructing residential high-rise buildings, location, linkage and relationships to the neighbourhood provinces, design and construction regulations, and government policy on residential construction.

Technical features of BIM servers for collaboration on building and construction projects

This paper reviews the technical features and requirements of Building Information Modelling (BIM)-servers as collaboration platforms for multi-disciplinary building and construction projects. Multi-disciplinary collaboration is the norm in the Architecture, Engineering, and Construction (AEC) industries, especially in complex projects. The widespread adoption of object-oriented Computer-aided Design (CAD) tools that support BIM capabilities has generated greater interest in model based exchange of information across disciplines and consultants who have traditionally collaborated through the frequent exchange of 2D drawings and documents. BIM-servers are collaboration platforms that are expected to provide the technical capability to support this inter-disciplinary exchange of 3D models in addition to intelligent management of the related drawings, documents and other forms of data. Since BIM-servers are a recent technical development a review of their technical features can help further development. This paper serves this objective by providing a review of the technical features and requirements for using BIM-servers as multi-disciplinary collaboration platforms on building and construction projects. The methodologies include focus group interviews (FIGs) with representatives from the diverse AEC disciplines, a case study on a state-of-the-art BIM-server, and a critical review and analysis of current collaboration platforms that are available to the AEC industries. This paper concludes that greater emphasis should be placed on supporting technical requirements to facilitate technology management and implementation across disciplines. Their implications for user-centric technology development in design and construction industry are also discussed.

A facility for the integration of live and virtual environments in realtime

This paper describes a research facility which has been established to explore the integration of live and virtual environments in real-time. The facility combines digital ontput from both live and electronic sources such as video, animatinos and 3D virtual environments and enables the monitoring and control of the interaction between live actors and the digital enviromnents. This provides a research environment in which the interaction between participants in the design and construction process and 3D virtual buildings can be investigated. This will lead to the enhancement of decision making and planning in the design and construction process.

Procurement of construction facilities: a case study of design management within a design and construct organisation

Presents a case study of design management within an Australian design-construct organization on a large residential apartment project, with the purpose of identifying and analysing issues associated with the organization, responsibilities and stages of development in a typical design-construct project. Discusses the nature of introspection in the Australian construction industry, the shift in procurement methods, the design and build approach, whole life issues, the need for a design manager, and the role of the facilities manager. Profiles the case study organization and its contracts and procurement methods, before focusing on weaknesses in the company, the role of the project design development manager in leading the design team, managing the design consultants, and interacting and advising the developer in relation to design decisions. Suggests from the exercise that: the project manager should remain the overall project leader, manager and interface between design, cost, programme, buildability, construction and user requirements; the design manager should be responsible for issuing all documentation; and the design cost manager should be responsible for verifying that the design developed accords with project budgets, project brief and quality requirements in conjunction with the design manager.

On representation and construction in a tectonic design studio

The study compares the roles of representation and construction in enhancing students' learning in a tectonic design studio by investigating issues of representational media use in the conception, development and communication of design processes and relating these to real-scale construction as a means of understanding tectonic design.

On representation and construction in a tectonic design studio

This study investigates the roles of representationand construction in enhancing students' learning in a tectonic design studio.  Students of architecture use 3D CAD, physical models and drawings, either alone or in hybrid combinations in the the design, development and communication of their design process.  Each of these media has intrinsic attributes that limit or enhance students' ability to engage in issues of architecture.  This can have a significant influence on students' learning of conceptual and tectonic design, in particularly in their early years of study.  Tectonic design, as an element of the architectural design process that involves the designerly consideration of issues of construction, is an important skill that is integral to architectural practice.  The unique problem based learning environment of the design studio offers opportunities for the development of deep learning approaches to tectonic design, however these are limited by the way students engage in representational media.  This research is based on an ethnographis case study of a cohort of second year architecture students at Deakin University, Geelong, in 2002.

From design for ecologically sustainability to facilities management through building intelligence and knowledge management

Ecological sustainability basically concerns environmental protection and social benefits. An ecologically sustainable development is based upon reduced energy usage, increased efficiency, and upheld social responsibility; and it should be properly evaluated by financial, environmental and social aspects. Council House 2 (CH2) is claimed to change the way of Australia approaches in ecologically sustainable design and construction. This is the ‘Six-Star design and built’ green star facility assessed by the Green Building Council of Australia (GBCA), and the 10-story city council building was completed and opened in 2006, totally A$11.3 million was invested for the sustainability features. CH2 protects the environment, when it compares with the old council house, and is expected to reduce electricity consumption by 85%; reduce gas consumption by 87%; produce only 13% of the emissions; and reduce water mains supply by 72%. In this paper, the author examines its design reports and the researches paper, in the form of knowledge base, to case-study how the sustainability, effectiveness and efficiency of CH2 work. By leveraging the existing CH2 sustainability knowledge, design and building professions can learn and imitate it in further ‘green’ design without ‘re-inventing the wheel’; facilities executives can also use the existing knowledge to identify steps to boost up the facilities’ operating efficiency.

Integrated construction supply chain design and delivery solutions

This study describes the development of a decision framework to support multi-disciplinary information and knowledge management model which focuses on integrated design and delivery solutions for all construction supply chain actors. The framework was developed within the context of two national information technology research projects in Australia. The first study used diffusion theory to explain the barriers and enablers to future adoption of advanced information technology solutions such as building information modelling (BIM). A grounded theory methodology was deployed and a pathways model for innovative information technology diffusion accommodating diverse patterns of adoption and different levels of expertize was developed. The second study built on the findings of the first study but specifically focussed on innovators, early and late adopters of BIM and the development of a decision framework towards advanced collaborative platform solutions. This study summarizes the empirical results of the previous studies. The core of the decision framework is the creation, use and ownership of building information sub-models and integrated models. The decision framework relies on holistic collaborative design management. Design expertise is diffused and can be found in various locations along the construction supply chain within project teams. A wide definition of design is considered from conceptual to developed to detailed design. The recent development to the decision model offers much potential as the early upstream decisions are often made in a creative, collaborative and uncertain environment. However, decision making needs to balance both a reductionist and exploratory creative empowerment approach. Shared team expertise and competency and team mental models are explored as a fundamental requirement to collaborative BIM. New skills in interdisciplinarity are discussed as an implication of future construction industry collaborative platforms.

Modelling direct and indirect water requirements of construction

Water consumed directly by the construction industry is known to be of little importance. However, water consumed in the manufacture of goods and services required by construction may be significant in the context of a building's life cycle water requirements and the national water budget. This paper evaluates the significance of water embodied in the construction of individual buildings. To do this, an input-output-based hybrid embodied water analysis was undertaken on 17 Australian non-residential case studies. It was found that there is a considerable amount of water embodied in construction. The highest value was 20.1 kilolitres (kL)/m2 gross floor area (GFA), representing many times the enclosed volume of the building, and many years worth of operational water. The water required by the main construction process is minimal. However, the water embodied in building materials is considerable. These findings suggest that the selection of elements and materials has a great impact on a building's embodied water. This research allows the construction industry to evaluate design and construction in broad environmental terms to select options that might be cost neutral or possibly cost positive while retaining their environmental integrity. The research suggests policies focused on operational water consumption alone are inadequate.

Parthenon's main design proportion and its meaning

Defines the geometrical proportion that was used to design the Classical Parthenon of Athens. Through the exploration of Pythagorean theories, the symbolism of the numbers 4, 6, and 9, which make up the temple's geometrical proportion, is unraveled in order to reveal the meaning of the temple's design.