Representation of Tehran Arg Square Based on Descriptive and Visual Documents

Over time, the Shell of Arg square, has undergone some structural changes. So far the Arg square has not been represented. Representation and  shape analysis of the Shell components of the Square can reveal the characteristics of the square. Understanding the components of the shell can be one of the suitable solutions for the rehabilitation of the elements of this valuable square. The size and shape of the frames, openings and porches have been directly influenced by the formation of the final form of the historical Arg square. The authors have focused on the historical characteristics and the process of forming the adjacent set of square and passages; In this paper, for the first time, the shell representation of the Arg Square will be analyzed. This paper seeks to examine the role of the elements forming the final form of the Arg square shells. In this research, using descriptive-analytical method, comparative analysis and comparison of field wall components is performed. The research data were analyzed by field study and library studies. The results indicate that in shaping the Arg square shells in different periods From the Nasserian period to the early Pahlavi period,of frames, openings and porches with rhythm and their joint combinations are used together.