NEURAL NETWORK PREDICTIONS OF STUD WALL SOUND INSULATION

Using the results of acoustic laboratory tests, neural network analysis has been used to predict the sound transmission class (STC) for different types of drywall constructions. The basic parameters – stud frame type and size, mass of wall construction, the inclusion, type and width of any cavity absorption, overall partition width, minimum sheet lining thickness,…

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THE USE OF BAMBOO FOR LIGHTWEIGHT CONSTRUCTION SYSTEM

Building with bamboo looks back to ancient tradition in which plants grew in abundance, such as in south-east Asia. Bamboo offers a considerable number of opportunities which are not yet exploited. There is a long tradition of bamboo structures being employed to solve the most varied of building tasks. This has resulted in a wide…

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PROPOSAL OF A LOW ENERGY HOUSE WITH AIR-CIRCULATION IN BRICK WALLS

This paper reports on test house measurements and simulated prediction for the proposed passive air-circulation system on brick houses. A test house was constructed to validate experimentally the effect of passive device elements. Direct solar gain and Trombe Wall effect are the object in winter in terms of passive heat gain. Earth cool tubes and…

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STUDENT CENTRED RESEARCH INTO BUILDING FABRIC PERFORMANCE

Whilst much anecdotal evidence exists about alleged construction deficiencies with the external fabric of residential buildings built in New Zealand since the introduction of the national Building Code in 1992, there have been few attempts to record systematically and objectively the extent or frequency of such inadequacies. This paper will outline a research proposal instigated…

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PLAYING AROUND WITH ARCHITECTURAL SCIENCE

There have been many recent developments in the field of building performance simulation and analysis. The associated software is becoming increasing sophisticated and, at the same time, somewhat more user-friendly and intuitive. However, the focus is still on the use of these tools at the end of a project, and then mainly for final design…

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THE PROSPECT OF VIRTUAL LABORATORY IN SOLVING PROBLEMS OF LEARNING AND TEACHING ARCHITECTURAL SCIENCE IN INDONESIA

The lack of appropriate architectural science laboratories to support good learning-teaching methods has long been a problem in Indonesia and has been suspected result in the poor building environmental design quality. Anticipating the global free trade era, the methods should be improved if the students are to compete with their counterparts from countries with well-established…

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CUMULATIVE SKY LUMINANCE DISTRIBUTIONS FOR DAYLIGHTING DESIGN

Despite progress in the development of standard skies, there has been limited development on how these new models will be implemented in design. Without this the tolerances associated with modelling could be greater than the expected benefits. Practical daylighting design comes not from the instantaneous application of a standard sky for all possibilities but from…

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A STUDY OF FLOOR PLANNING IN DESIGNATED REFUGE FLOOR IN HIGH-RISE BUILDING

The Hong Kong Fire Code stipulates to provide designated refuge floors for high-rise or ultra high-rise buildings. In order to fulfill its function, the refuge floor should be a temporally safe place for the evacuees during evacuation under fire case. The safety of refuge floor under fire situation may be impaired if the floor is…

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THE UNIVERSITY OF THE SUNSHINE COAST: IMAGE VERSUS SUBSTANCE, A CASE STUDY OF ENVIRONMENTAL SUSTAINBLE DEVELOPEMENT IN PRACTICE

The use of Environmental Sustainable Design (ESD) is becoming a more common approach for education sector building programs through the use of a range of passive design features, strategies and practices in the substance of the buildings. Yet, whilst this is approach is applaudable, it is argued that it is also used for identity purposes,…

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A LOW-ENERGY HOUSE AND A LOW RATING: WHAT IS THE PROBLEM?

The main objective of this paper is to explore the question whether rating the energy performance of a design is the right way to achieve environmentally sustainable development. The actual performance of a built and occupied house is compared to the predicted performance by a rating scheme. The house performance was examined through site visits,…

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A CRITICAL REVIEW OF HOME ENERGY RATING IN AUSTRALIA

The design of houses to suite the Australian environment has been a preoccupation from the first day that Europeans set foot on the shores of Botany Bay. During the mid to late 1970s the issue of energy resource use was added to the design criteria. Efforts in Australia to encourage energy-efficient housing as a public…

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THERMAL EVALUATION OF ACCOMMODATION FOR SENIORS

Housing for seniors forms a significant part of the housing stock owned by the State Housing Commission of Western Australia. The number of dwellings for seniors continues to increase with 39% of the housing units commenced in 1998-99 being for seniors. The design brief for that accommodation includes provisions that the designs should achieve an…

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VISITOR FACILITIES IN VICTORIAN NATIONAL PARKS: AN INVESTIGATION OF USER PERCEPTION AND DESIGN GUIDELINES

National Parks in Victoria are managed for the conservation of natural ecosystems and public recreation. Part of this management includes the provision of facilities for visitor convenience and comfort. Victorian guidelines for the design of facilities state that buildings should be ‘harmonious’ with the environment, however these guidelines lack definition and do not show an…

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LOW-IMPACT DESIGN OF TOURIST RESORTS IN QUEENSLAND’S COASTAL TROPICS

In this paper, a ‘design–material package’ for low-impact tourist resorts in a hot and humid type of climate is discussed. Design practices, concerning site planning, massing and functional layout, and envelope design, are examined in terms of their adequacy in the given conditions. Both architectural design and material solutions are set against theoretical principles. The…

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AN ANALYSIS OF CONTEMPORARY AUSTRALIAN LIGHTWEIGHT HOUSES

Some “lightweight” Australian houses from the period 1985-1999 are examined according to four categories: • Relation to climate (orientation, sun/shade, ventilation and heating) • Relation to lifestyle (spatial organisation, imagery and indoor/outdoor connections • “Environmental responsibility” (energy and material use and waste disposal) • Construction and structural system (heavyweight (concrete, brick, etc) and lightweight (steel…

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A LOOK-UP TABLE FOR ET*

New Effective Temperature designated ET* an index for indicating the combined effects of air temperature and humidity on human thermal response was developed by Gagge et al in 1971. This index is the ASHRAE preferred index for use in warm humid climates. One reason it is not widely used is the complexity of calculation. Computation…

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PASSIVE DESIGN REVISITED – AN EVALUATION OF TWO OFFICE BUILDINGS IN THE HOT-HUMID TROPICS

This paper evaluates passive design strategies against occupant feedback and behaviour in two air-conditioned office buildings situated in the hot-humid climate of Singapore and Malaysia. Indoor conditions are monitored; occupants are surveyed and observed. Of the passive principles available, two are present in both buildings: daylighting as a strategy for indoor illumination and solar load…

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ENERGY ASSESSMENT OF INSTITUTIONAL BUILDINGS

The degree to which new non-residential buildings are designed to have a minimum impact on the environment varies considerably although public and institutional buildings are more likely to comply as a result of perceived community obligations. Environmental performance criteria and benchmark levels are not well defined and information is required to assist designers and facility…

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NICE BUILDING: PITY IT’S NOT VERY COMFORTABLE

Development of mechanical vapour compression refrigeration in the 20th century and of a steady state theory of human comfort in the 1970s offered the promise of an ideal indoor climate for everyone. The idea of sealed, mechanically ventilated, cooled and heated buildings was promoted heavily by the air conditioning industry and was adopted with enthusiasm…

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CONSTRUCTING A SYSTEMIC APPROACH TO THE DESIGN SCIENCES: EXTENDING THE LOGIC OF ENVIRONMENTAL TECHNOLOGIES INTO STUDIO PRACTICE THROUGH IT

To significantly impact the development of spatial/ formal building design judgment it has become important to extend the logic of the environmental technologies into design studio as a means of enhancing student synthetic skills. This paper reports on an ongoing, funded research project that is concerned with the educational application of Information Technology (IT) into…

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THE ARCHITECT FOR THE FUTURE AND TEACHING ARCHITECTURAL SCIENCE

The current unsatisfactory situation in architecture calls for changes to the role which architectural professionals perform in relation to the built environment. The profession is being fragmented as a number of ‘new’ professions appear in design studios and at building sites, making building (design—construction) processes increasingly incoherent, lacking in direction and ultimately unsustainable. In this…

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ANATOMY AND ANTHROPOMORPHISM: ARCHITECTURE AND THE ORIGINS OF SCIENCE

Since the writings of Vitruvius in the first century AD, the use of the human body as a metaphorical and symbolic referent has provided what is perhaps the most prolific trope for architectural theory. The image of ‘Vitruvian Man,’ with limbs outstretched to touch the circle drawn from its navel, took on particular significance during…

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ACCENTUATING THE POSITIVE — SMART MATERIALS, INTELLIGENT BUILDINGS AND THE IMPLICATIONS FOR ARCHITECTURAL SCIENCE

he advent of new technologies, such as smart glass and the control systems of intelligent buildings, provides an opportunity to enhance the quality of interior environments and enrich the environmental experience of the people who occupy them. These technologies could equally easily become locked into serving an existing and more basic objective such as reducing…

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