Analyzing the fluidity of iwan’s space in traditional houses of Bushehr

The reason to choose this issue is paying attention to the spatial fluidity of Iwan and communicational and functional values of various kinds of Iwan in traditional houses of Boushehr. The traditional architecture provides the material and spiritual spaces in a way that has sincerity, intimacy, balance and peace. Iwan has the conceptual and functional richness and in terms of form it has a great role in raising the spatial value and besides of an open space it leads to create a valuable structure. To achieve the spatial fluidity on Iwan, we must have a special look to basic designing elements (shape, scale, pattern and balance). We should look at the fluidity of spaces as a contiguous whole and a united collection and avoid the one-dimensional and discrete look at space. Fluidity gives the audience a sense of physical movement and moves their eyes not their body. The visual motion means when we stand fixed at a point in space, our eyes have motion and move from one point to another.This raises a question that how the fluidity of space affects on Iwan’s forms of traditional houses of Bushehr which is one of the important factors influencing the form of the building.In this research first of all the concept and meaning of Iwan is defined and then the spatial fluidity and various kinds of spatial fluidity of Iwan and Iwan fluidity of traditional houses of Bushehr has been discussed. The research method of this study is objective, descriptive-visual observation, review of documents, analysis of cases and library studies relied on theoretical concepts.The major findings and conclusions of this study shows that Iwan as a seasonal place for sitting has different orientation in the building and because of its climatic reasons, it is a semi-open space with different functions such as: it acts as a link between the open and closed space, a passage and a link space also it has relation to the nature and causes cohesion of inside and outside and has spatial fluidity