Passive Adjustment Performance Of Intermediary Space In Buildings

As an increasing proportion of city space is taken away by large public buildings, their gigantic size, high occupant density, centralized space and completely central AC system, all greatly reduce our chance to be close to nature, and their energy consumption lager than in others. The intermediary space is one of passive design strategies, which lives between outside nature environment and inside artificial environment, and it connects two opposite, unrelated or irrelevant phenomenon or objects by intermediate link which has widely existed in many types of large public buildings. However, many evidences indicated that it is insufficient attention on passive adjustment performance of intermediary space in deisgn phase. On one hand, the current research variable is single which is lacking of multi-angle comprehensive evaluation and analysis to determin the effect of passive adjustment method; on the other hand, due to a lack of more practical and long-term testing data to prove or disprove passive strategies’ s effectiveness, it is harder to further optimization in other new design.In the first place, this research follows a way of morphology analysis- function exploration-effect verification to analyze the evolution of theory and practice and the type of architectural space passive adjustment performance in time and space dimensions. Then, based on more than 400 sets of sustainable architecture research questionnaire; up to 200 large public buildings’ data collation; and long-term in-depth research on 30 buildings, this research established multi-criteria approach to evaluate the effect of passive adjustment in intermediary space, which can be classified into three aspects, including building space information, subjective occupancy satisfaction and objective physical environmental comfort. The research steps details are as follow:1) Firstly, the research adopted analytic hierarchy process to classify factors of four-dimensional building space, and set up a passive adjustment effect related building information framework; 2) From the perspective of architecture design, according to semantic differential method in psychology, this research quantitatively disassembled occupant satisfaction level of building space. Making factor dimension with the aid of statistical factor analysis method, the research developed occupant satisfaction subject evaluation factors matrix. Moreover, this research used statistical correlation analysis to work out internal association between occupant satisfaction and building information. 3) From the perspective of building environment, the research developed object physical environment evaluation matrix and physical environment data cloud which based on Bilinear polynomial interpolation algorithm method; 4) A comprehensive judgment model for a Comfort-Satisfaction Matrix was developed to display the regulation capacity of the building’s environmental performance in its intermediary space, and highlight optimized possibilities for passive space and the whole building in the design and renovation phases; 5) By using software development platform, the research developed evaluation tool to access passive adjustment performance of intermediary space, which is called SCTool. Its significance on one hand lies in a useful evaluation tool for all online occupants and architects, and on the other hand, it can be a database platform for research team for future study. Finally, an in-depth fieldwork survey of courtyard spaces and atrium spaces in cold climates was conducted as an example to validate the comprehensive process of evaluation, testing and optimization of passive adjustment performance of intermediary space.Therefore, the research results including three aspects: 1) Studies repeatedly demostrated the dynamic adjustment value and its complexity of intermediary space, and providing many basises for design and retrofit. 2) Set up of a new logical framework to assess building’s passive adjustment performance of intermediary space. 3) Development of readable and visualable software to evaluate passive adjustment performance of intermediary space.