انسجام‌بخشی کالبدی به محدودۀ مرکزی شهر شیراز* ارائۀ راهکارهای طراحی شهری به منظور افزایش انسجام کالبدی بر اساس نظریه‌ی پیچیدگی
محورهای موضوعی : معماریسید حسین بحرینی 1 , مهران فروغی فر 2
1 - استاد، دانشکده شهرسازی، پردیس هنرهای زیبا، دانشگاه تهران، تهران، ایران.
2 - دانشجوی دکتری شهرسازی، دانشکده شهرسازی، پردیس هنرهای زیبا، دانشگاه تهران، تهران، ایران.
کلید واژه: کلیت, انسجام کالبدی, نظریه سیستم‌های پیچیده, اصول فرم شهر, شیراز,
چکیده مقاله :
انسجام کالبدی کیفیتی است که در کالبد شهرهای معاصر به سختی یافت می‌شود. در پاسخ به این مسأله، هدف این پژوهش دستیابی به راهکارهای طراحی شهری است که با استفاده از آنها بتوان به کالبدی منسجم تر و پاسخگو به نیازهای معاصر شهروندان دست یافت. در این راستا، در قالب یک تحقیق کیفی و با مرور اسناد کتابخانه‌ای و پیمایش میدانی، اصول فرم شهر بر پایۀ نظریه‌ی سیستم‌های پیچیده در بافت تاریخی شهر شیراز مورد سنجش قرار می‌گیرد تا از این طریق امکان به‌کارگیری این اصول به عنوان پایه‌ای نظری برای راهنمای طراحی مورد ارزیابی قرار گیرد. نتایج حاصل نشان می‌دهد که محدودۀ قدیمی شهر شیراز بر اساس اصول فرم شهر در نظریۀ پیچیدگی از انسجام کالبدی برخوردار بوده و بنابراین اصول مذکور قابل تعمیم به این محدودۀ است و می‌توان بر اساس آنها، راهکارهایی را برای افزایش انسجام کالبدی شهرهای معاصر با توجه به شرایط زندگی امروز ارائه کرد.
The old cities of Iran have different qualities that some of them cannot be seen in contemporary cities. Experiencing the invasion of cars and people’s new life style during the last century, old city gradually lost their forms and function. Such changes caused new challenges and demands by which various qualities of old cities have been altered or vanished forever, as urban cohesion and wholeness. Cohesion and wholeness are two related concepts where the former one is a fundamental condition to reach the later one. In this paper, wholeness is defined as an integrated system, consisted of different elements and their relations which can tolerate no changes, since a trivial one may change it into another system. Moreover, cohesion is considered as an important quality of relations between different elements of the whole. Although cohesion can be seen with various scales in different layers of cities, the layer that is emphasized in this paper is the built environment.For the theoretical framework of this paper, we used complexity theory with emphasis on Christopher Alexander and Nikos Salingaros theories about wholeness and coherent urban form. We extracted principals of urban coherence to evaluate the cohesion of central part of Shiraz and to make design guidelines to achieve cohesion. These principles are: coupling, diversity, boundary, forces, organization, hierarchy, interdependence, and decomposition. And also a wide range of valid records, documents, and maps are used which enabled us to illustrate the main structure of this old city, before its destruction in Pahlavi era. Taking into account all of these principles, we focused on these questions: does cohesion exist in the ancient area of this city? Can we find some application of these principals in the old city that could be as a foundation for design guidelines?As our first contribution, we used the principles and evaluated their existence by applying them to an old area of Shiraz city which dates back to the Zand dynasty. Due to our promising results, mentioned principles can be seen in old city. On one hand, the existence of these principles in the old city means that the old area follows the rules of complex system theory so it emphasizes that the old area is a coherent area. On the other hand, it suggests some design principals and patterns that can be considered as a foundation for design guidelines towards coherence and coupling contemporary city. Our second contribution is a design guideline for cohering contemporary cities by connecting two adjacent areas. These guidelines are: complementarity of adjacent areas, increasing the permeability of area in its edges, reducing unlimited views, reducing parcel size of edges, reducing the distance between adjacent areas, increasing the permeability of edge parcels, priority of pedestrian movements, increasing the diversity of functions, increasing the diversity of forms, and increase the homogeneity of parcels in a street. By using these guidelines we can increase the connectivity of two adjacent areas in the first step and increase the cohesion of the whole city in the last step.... Key words: Wholeness, Form Cohesion, Complexity System Theory, Urban Form Principles.
اردلان، نادر؛ و بختیار، لاله. (1390). حس وحدت: سنت تصوف در معماری ایرانی.(ونداد جلیلی، مترجم). تهران: علم معمار رویال. (نشر اثر اصلی 1973).
الکساندر، کریستوفر. (1387). زبان الگو: شهرها. (رضا کربلایی‌نوری، مترجم). تهران: مرکز مطالعاتی و تحقیقاتی شهرسازی و معماری. (نشر اثر اصلی 1977).
توسلی، محمود؛ و بنیادی، ناصر. (1386). طراحی فضای شهری. تهران: مرکز مطالعات و تحقیقات معماری و شهرسازی ایران.
توسلی، محمود. (1388). طراحی شهری هنر نو کردن ساختار شهر همراه با چهار نمونه موردی. تهران: محمود توسلی.
تولایی، نوین. (1381). شکل شهر منسجم. صفه، 35، 5-19.
تولایی، نوین. (1386). شکل شهر منسجم. تهران: انتشارات امیرکبیر.
رضاخانی، ژیلا. (1392). درآمدی بر مفهوم مفصل در معماری بر اساس روش‌هایدگری ریشه‌شناسی واژه. مطالعات معماری ایران، 5، 101-114.
Alexander, C. (1965). The city is not a tree.Architectural Form, 172 (April/May).
Alexander,C. (2002). The nature of order: the phenomenon of life. California: The center for urban structure.
Allen, P. (1997). Cities and Regions as Self-organizing Systems: Models of Complexity. Amsterdam: under license of Gordon and breach science publishers.
Batty, M., & Longley, P. (1994). Fractal cities: a geometry of form and function. London: Academic Press.
Batty, M. (1997). Cellular Automata and urban form: A primer. Journal of the American planning association, 63 (2), 266-274.
Batty, M.(2007). Cities and complexity: Understanding Cities with Cellular Automata, Agent-Based Models and Fractals. USA: MIT University press group.
Batty, M. (2010). Urban modeling: Algorithms, calibrations, predictions. Cambridge: Cambridge university press.
Ben Hamouche, M. (2009). Can chaos theory explain complexity in urban fabric? Applications in traditional Muslim settlements.Nexus network journal, 11 (2), 217-242.
Bohm, D. (1980). Wholeness and the implicate order. London: Routledge.
Jacobs, J. (1961). The death and life of great American cities. New York: Vintage books.
Johnson, N. (2009). Chapter 1: Two`s company, tree is complexity, simply complexity, a clear guide to complexity theory. Oxford: One world publication.
Kellerg, S. H. (1993). In the wake of the chaos unpredictable order in dynamical systems. Chicago: University of Chicago press.
Kostof, S. (1999). The city shaped, Urban Patterns and Meanings through History. (Second edition). New York: Thames & Hudson.
Koffka k. (1936). Principles of Gestalt psychology. New York: Harcourt, Brace and company.
Kohler, W. (1947). Gestalt psychology: An Introduction to New Concepts in Modern Psychology. New York: Liveright.
Marshall, S. (2009). Cities design and revolution. London: Routledge.
McAdams, M. A. (2008). Complexity theory and urban planning. Urbana: urban affairs and public policy, 9, 1-16.
Peterman, B. (1932). The gestalt theory and the problem of configuration. London: Kegan Paul, Trench, Trubner & CO., LTD.
Rescher, N., & Oppenheim, P. (1955). Logical analysis of gestalt concepts. The British journal for the philosophy of science, 6 (22), 89-106.
Salingaros, N. (1998). Theory of urban web. Journal of urban design, 3(1), 53-71.
Salingaros, N. (2000). Complexity and urban coherence. Journal of urban design, 5(3), 291-316.
Salingaros, N. (2001). Fractals in the new architecture, Archimagazine, Retrieved January 2016 from: http://www.archimagazine.com/afrattae.htm.
- Salingaros, N. (2006). A theory of architecture. Solingen: Umbau-Verlag.
Salingaros, N. (2012).Urbanism as Computation In J. Portugali (Ed.), Complexity Theories of Cities Have Come of Age. Israel: Springer.
Salingaros, N. (2013) Unified architectural theory. Portland: Sustasis Foundation.
Zhang, T. (2006). Planning theory as an institutional innovation: Divers approaches and nonlinear trajectory of the evolution of planning theory. City planning review, 30 (8), 9-18.
Wertheimer, M. (1924). Gestalt theory. Berlin: Kant society.
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