圧迫感の計測に関する研究・4 : 許容値の設定並びに日影との対照

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This paper is PART-4 in a series of Experimental Study on Measurement of the Sense of Oppression by a Building. This is the final report, which is mentioned the conclusion of last three reports and the estimation of the permissible value of the sense of oppression caused by a building. The permissible value of the sense of oppression is estimated good for practical design of buildings. As a general result, we propose that the permissible value of the sense of oppression was 8% of configuration factor of the building. In case of over 4% of configuration factor of the building, we should discuss that the building is a influential element of urban environment. And, for reference, we made a comparison between the equal lines of sense of oppression and the equal hour shadow lines. This study is consist of six Experiments, which contents are indicated below. In Experiment I, we tried to find the psychological meaning of the sense of oppression as the subject of this study. The sense of oppression is a kind of unpleasant one caused by volumes of an exterior wall of a building, through vision in an exterior space. And it is also consciousness of being sufferer, namely being "pushed on", "compelled", "overhanged". In Experiment II, we mentioned the availability of the device for the experiment-wide view projection system composed of three screens. In Experiment III, by means of the quantitative treatments of sensation-psychometrical treatments, we mention about the sellection process of the physical value that has the most suitable and explanatory ability for the psychological content of the sense of oppression caused by a building. It was obtained that the sense of oppression is explained by a look of a building shape, namely the solid angle factor of a building. However, it became clear through further analysis that the configuration factor-the value that weights height element-is more suitable and explanatory physical value for the sense of oppression than the solid angle factor of a building. Experiment IV is the trial of the proposal of the equation for estimating the sense of oppression by means of the statistical process. As a result, inspite of the difference among three typical housing areas, the equation for estimating the sense of oppression caused by a building in housing area is indicated as follows; Ψ=30.2c^<0.80> where, Ψ : the sense of oppression caused by a building c : configuration factor of a building. In Experiment V, we discussed the influence of a distance to a building. After consideration of horizontal distance to a building, we could indicate the equation for estimating a sense of oppression. The result showed that the consistency of vision had some influence to a sense of oppression, in other words, the farther the distance from a building is, the stronger the sense of oppression becomes, in the case of the same configuration factor. The sense of oppression obtained from two variables, configuration factor and distance to a building. Ψ=6.63c^<1.002>D^<0.426> where, D : distance to a building. In Experiment VI, we discussed correlation between the colour effect of an exterior wall of a building and the sense of oppression. As a result, it became clear that the colour of an exterior wall of a building had some influence on a sense of oppression, but we didn't have quantitative analysis of the relation.
社団法人日本建築学会の論文
1981-12-30

圧迫感の計測に関する研究・4 : 許容値の設定並びに日影との対照

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