List of Articles fatemeh amirian

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  1 - The Intertextual Reading of Lalehzar Context Based on Event-Space Concept for Improving Its Spatial Quality
  Mohammadreza Jasbi fatemeh amirian Bahman Namvarmotlagh
  The Intertextual Reading of Lalehzar Context Based on Event-Space Concept for Improving Its Spatial QualityAbstract: As valuable traditional pieces of the past, historical and cultural contexts are indispensable parts of any society, highlighting the importance of their More

  The Intertextual Reading of Lalehzar Context Based on Event-Space Concept for Improving Its Spatial QualityAbstract: As valuable traditional pieces of the past, historical and cultural contexts are indispensable parts of any society, highlighting the importance of their preservation and restoration. Generally, historic sites carry the bio-codes of generations who left their distinct traces at a point in time. Without a shadow of a doubt, these unique footprints shape the cultural capital of any nation, including memories and mental images of citizens, leading to the basis of their identity. This article aimed to determine the most influential factors in improving the spatial quality of valuable urban context based on the concept of “event-space” through an intertextual reading. The selected area in this study was the Lalehzar context, one of Tehran's oldest historical and cultural streets. Reminiscing with vivid memories from the past citizens, Lalehzar street was a representation of modern life. This is why it consists of a significant number of cinemas, hotels, cafes, boutiques, and markets as modern functional representations, being an appropriate container for various social-cultural events and modern behavior. However, during the last seven decades, this area has lost its identity because of the city development and its negative consequences. Unfortunately, a large part of this historic district has been damaged due to the absence of social and cultural activities and an unfit neighborhood. Many symbolic spaces in Lalehzar have been destroyed or are on the verge of destruction. The place is now mainly used for everyday activities, entirely in contradiction with the physical body of the street in the form of electronics stores, resulting in intensified visual pollution. Given its rich history in Tehran and its exceptional location neighboring Baharestan Square and Toopkhaneh Square, Lalehzar Street has a brilliant capacity to accept new uses befitting its cultural and historical status. In doing so, the spatial quality and its improvement as an area of theoretical study in contemporary architecture were put into consideration, and the research and views of experts like Bentley, Rogers, Bell, and Golkar have been compared and analyzed. Some architects and urban designers believe that current factors are insufficient for the quality improvement of valuable contexts. Considering that the history and backgrounds of buildings are crucial in urban design and quality improvement, the intertextual approach was chosen to reinforce available potential and eliminate disharmonious parts. Intertextuality refers to the various relationships of texts, and intertextual reading allows studying different layers of a text and utilizing hermeneutics, the science of interpretation and change. Meanwhile, what is so important about this area was the events that took place here granted a lively atmosphere, almost equal to its physical representations and history that the built environment historians usually pay attention to. Accordingly, the purpose of this study was to find the hidden dimensions of the effects of event space on spatial quality in Lalehzar through intertextual reading. The main research question was posed as follows: How can we determine the reliable and influential factors in spatial design quality improvement in valuable contexts through intertextual reading? In this qualitative interpretive research, the views of experts in event-space and spatial quality were first studied. To collect the data, in addition to the library resources and documentary research, interviews were conducted with the space users and audiences, whether at the buildings or in their neighborhood. To narrow down the study for accurate results, five landmark event spaces (Grand Hotel, Nasr Theater, Pars Theater, Pars Café, and Alborz Cinema) were selected through purposeful sampling, and they were studied and analyzed over two years. The data were coded via interpretive and content analysis, and eventually, SPSS and MAXQDA were used to analyze the extracting data. The former was used for quantities analysis resulting in a diagram of crucial factors for improving the quality of space based on the theorists’ writings, while the latter was used for creating some graphical coding diagrams for both the conducted research and interviews. The study’s results indicated that space perception, attachment to the natural flow of life (proportion, order, dynamicity), and spatial formation (variety and hierarchy) were the most influential factors in improving the quality of valuable contexts.Keywords: Intertextual Reading; Event-Space; Space quality enhancement; Lalezar; Valuable historical context. Manuscript profile
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  2 - Effective factors in an optimal design of an air purifier façade to equip the existing buildings’ facades in urban spaces with a high pollution factor, (Case study: Pars Hospital in District 6 of Tehran)
  Ehsan Najaf Zadeh fatemeh amirian Amin alah Ahadi
  10.22094/lsj.2023.704904
  This study aims to design an air purifier façade as a secondary skin façade for the five-story Pars Hospital. The main purpose of this study is to equip the existing buildings’ facades in urban areas with a high percentage of air pollution by an air More

  This study aims to design an air purifier façade as a secondary skin façade for the five-story Pars Hospital. The main purpose of this study is to equip the existing buildings’ facades in urban areas with a high percentage of air pollution by an air purifier skin to increase the lifecycle of facades and improve those buildings’ users’ well-being. To choose the case study, three factors were taken into consideration. First, based on the statistics of the air quality monitoring stations, district 6 of Tehran was selected as one of the most polluted and sensitive areas of the city. This is rooted in its central location in the structure of the city, the concentration of administrative, commercial, educational, and recreational zones, as well as the high volume of daily traffic in it. Then, this research focuses on the medical centers and hospitals located in this area and specifically along Keshavarz Boulevard, which is home to many medical centers and hospitals, and from this point of view, it is one of the sensitive and fragile axes in front of air pollution. Eventually, among the medical centers located on this axis, Pars Hospital was selected as the case study due to its specific visitors, patients with respiratory and lung malfunctions, and their priority need for fresh air. Simulation based on computational fluid dynamics (CFD) is used as the research method. In this process, through several stages of simulation and analysis of different parameters with the use of Energy Plus software and Design Builder user interface (v6.1.0.6), an optimal design is presented for a secondary skin, accompanied by a significant increase in air velocity and a decrease in the concentration of pollutants. At simulation time, attention to the studied climate and considering the principles of passive design, are the most important factors in determining the optimal behavior of the building façade, for this purpose in the simulation process, weather information of Tehran city will be used as a database using Energy Plus software with Design Builder user interface.Findings are:1- The optimal distance of the cavity is 150 cm, if the depth of the cavity is less than 150 cm, the cavity of the double-skin façade will benefit more from the stack effect and lead to more heating of the cavity, and if the depth of the cavity is higher than 150 cm, the cavity of the double-skin façade, will not benefit from the stack effect and the temperature of the cavity will decrease, but according to the simulations if the depth of the cavity is considered to be 150 cm, the temperature and size of the cavity will be suitable for growing air pollution absorbing plants and also, the amount of air circulation is done well. 2- For equal distribution of airflow in the cavity, this space should be separated by the floors. 3- Optimal ventilation mode is outside to inside. In this ventilation mode, the purpose is to provide, clean air for breathing, reduce the concentration of pollutants in the cavity, and remove pollutants and polluted air from Pars Hospital. With the increase of fresh air exchange, the concentration of air particles also decreases. 4- The ratio of the area of the air inlet and outlet openings to that of the wall should be 0.075 so that while increasing the speed of the airflow, the age of air in the cavity will be reduced. 5-The optimal form of the secondary skin is grooved in the direction of the wind. With an optimal design of an air purifier skin, the speed of natural airflow in the cavity can be increased and the concentration of pollutants can be reduced. the curved grooves on the facade cause suction and direct the airflow upwards like an air channel, which causes the airflow to continue and increase its speed on the facade. with an optimal design of an air purifier skin, the speed of natural airflow in the cavity can be increased and the concentration of pollutants can be reduced, Research findings in these 5 modes have the most optimal form and function. It should be noted, that the influence of the variables is dependent on others. and all these variables together follow a specific purpose. Manuscript profile