آسیب پذیری بافت های فرسوده بخش مرکزی شهر تهران در برابر زلزله (مورد: منطقه 12)

Authors

مهشید منزوی

محمد سلیمانی

سیمین تولایی

اسماعیل چاووشی

abstract

extended abstract introduction urban vulnerability to environmental disasters in countries with high environmental risks has converted into a severe issue. even though the relevant literature indicates that corresponding studies urban historical deteriorated physical structures started seven decades ago, literatures pertaining vulnerability to earth quake go back to mid 1970s.vulnerability to environmental risks, particularly to earthquake, has become an important issue for urban scientists,engineers and urban managers in countries and regions with perilous natural environment,as is the case for tehran’s earthquake prone location. metropolitan of tehran, the capital city of iran is an economic,communicative, and cultural hub not only in regional level, but also in national and international level. geographically, tehran is a city with an unsafe natural location between two great faults in the north and in the south.these faults particularly threaten the deteriorated and central textures. metodology to help diminishing the vulnerability of this part of the city, in this work vulnerability of deteriorated area of central tehran to earthquake, from the view of urban geography and considering the first level of urban crisis management ,is analyzed. the study deals with vulnerability of urban deteriorated physical structures located in zone 12 to earthquake which is highly vulnerable. separate analysis of seven factors, including population, age of the buildings, structure, surface area of the buildings, compatibility,access to open public areas,and accessibility, along with the dynamism of zone12, are used with the suggested model to discuss the results of different variable combinations. the distributions of these variables in the regional blocks and the vulnerabilities of these blocks have been used in the desired functions to perform the analyses based on the total weight of the variables in the urban zones and blocks of the region. discussion this study suggests that with regard to both “vulnerable created” and” vulnerable subjected” urban physical buildings located in central parts of tehran,distance from open spaces, accessibility to vulnerable sites, age of the buildings and type of the construction materials are among the most important variables.the overall results prove the importance of all of the chosen variables in vulnerability of this specific zone.taking into account the“harmful systems”and“affected systems”in the urban system and the deteriorated texture of central tehran, accessibility to open public areas, access to roads, age of the buildings, and materials used in the structure, have respectively the highest impact on vulnerability to earthquake.also,regional and ultra regional dynamism, considerably affect the deterioration rate and vulnerability to earthquake.those mentioned variables along with areal economic distribution,dependent upon intra-regional economic activities concentrated in zones 12 and 13, leading to a daily flow of population of nearly 800.000 people in zone12,have increased the vulnerabilities of this part against earthquake.resident population distribution in zone12 follows a nonintensive pattern,which leads to a reduction in the role of this specific variable in the regional vulnerability to earthquake.deterioration of the urban texture in zone12, works as a“harmful system”;and based on the theoretical framework used in this work,the dynamism of the activities is a“harmful system”as well.this is resulted from the fact that the dynamism of activities is one of the major factors of deterioration of the textures in zone12. conclusion analysis of the skeletal characteristics of zone12showed that almost all of the skeletal characteristics all over this zone, are considered“harmful factors”when it comes to vulnerability to earthquake.but three variables of buildings’ age,texture pattern, and accessibility have higher significances.with the outcomes and results of this research,and its original idea, and considering the theoretical, and analytical framework used,it can be said that the deteriorated textures of central tehran are in themselves, and also in connection to a set of small and large interconnected systems.at the same time,understanding these textures as“vulnerable systems”is not possible, due to the reason that “vulnerabl systems” always need“harmful systems”to complement them.theoretically,understanding the vulnerabilities of the deteriorated texture of central tehran is possible through a systematic view of“harmful and affected systems”in connection to other close and far textures of tehran,as a“single urban body”.with this viewpoint,the resulting principles of this research can be used in analyzing the other parts of central tehran.therefore,using any of the existing theories without considering this point in the analysis is not useful in understanding the reality of vulnerability of city earthquake.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

آسیب پذیری بافت های فرسوده بخش مرکزی شهر تهران در برابر زلزله (مورد: منطقه ۱۲)

extended abstract introduction urban vulnerability to environmental disasters in countries with high environmental risks has converted into a severe issue. even though the relevant literature indicates that corresponding studies urban historical deteriorated physical structures started seven decades ago, literatures pertaining vulnerability to earth quake go back to mid 1970s.vulnerability to e...

full text

آسیب‌پذیری بافت‌های فرسوده بخش مرکزی شهر تهران در برابر زلزله (مورد: منطقه 12)

Extended Abstract Introduction Urban vulnerability to environmental disasters in countries with high environmental risks has converted into a severe issue. Even though the relevant literature indicates that corresponding studies urban historical deteriorated physical structures started seven decades ago, literatures pertaining vulnerability to earth quake go back to mid 1970s.Vulnerability ...

full text

آسیب پذیری بافت های قدیمی بخش مرکزی شهر در برابر مخاطرات محیطی زلزله مورد منطقه 12 شهر تهران

آسیب پذیری شهرها در برابر مخاطرات محیطی در کشورهای دارای محیط طبیعی مخاطره آمیز، به چالشی مهم در برابر علوم شهرشناسی، مدیریت مهندسی شهری تبدیل شده است. با وجود این و به رغم مطالعات و تحقیقاتی که طی حدود هفت دهه گذشته در مورد بافت های تاریخی قدیمی و فرسوده شهری انجام شده است، آسیب پذیری بافت های مذکور در برابر زلزله در مقیاس جهانی از دهه 91 میلادی مورد توجه قرار گرفته و در ایران نیز از اواسط دهه...

15 صفحه اول

تحلیل آسیب پذیری بافت شهری در برابر زلزله (منطقه مورد مطالعه: منطقه دو شهرداری تهران)

علی­رغم توسعة نظام­های اجتماعی- اقتصادی و شهرنشینی، انسان­ها به­طور فزاینده از اثرات زیان­بار بلایای طبیعی رنج می­برند. زلزله یکی از مهم‌ترین مخاطرات طبیعی است که به‌دلیل خرابی ساختمان­ها و زیرساخت­های شهری، خسارات فراوانی را به اموال و دارایی­ها، در نواحی شهری و اطراف آن وارد می‌آورد. از این رو نواحی آسیب­پذیر شهرها، از جمله مناطقی هستند که می‌توان با شناخت، پهنه­بندی و سیاست­گذاری درست، آثار ...

full text

تحلیل و ارزیابی آسیب پذیری بافت فرسوده و ناپایدار شهر بجنورد در برابر زلزله

امروزه در پی تغییرات سریع شهرها، بخشی از بافت­های شهری به علت فرسودگی و ناکارآمدی نتوانسته­اند ارتباطی مناسب با محیط خود و خدمات­دهی به بهره­برداران برقرار کنند. به‌عنوان قلمرو موردپژوهش بافت فرسوده شهر بجنورد به‌این‌علت که  بخش قابل‌توجهی از مشکلات شهر بجنورد در این بافت نمود عینی یافته است و به دلیل گستردگی بیش‌ازحد بافت فرسوده و روند فرسودگی شدید در آن موردپژوهش قرار گرفت. این پژوهش از نظر ر...

full text

ارزیابی آسیب پذیری بافت فرسوده شهر مرودشت در برابر زلزله با استفاده از (AHP) و (GIS)

شهر زیستگاه متراکم انسانی است که به دلیل حضور انسان، نیازمند امنیت و ایمنی در همه ابعاد کالبدی، اجتماعی، اقتصادی، فرهنگی و ... است. موقعیت جغرافیایی شهر مرودشت به گونه‌ای است که هم از نظر توپوگرافی و هم از نظر زمین شناسی درونی زمین، خطر وقوع زلزله این شهر را تهدید می‌نماید. وجود گسل‌های درونی زمین در منطقه مرودشت و اطراف آن، سابقه فعالیت این گسل‌ها، دوره بازگشت زلزله و پهنه‌بندی خطر لزره‌ای در ...

full text

My Resources

Save resource for easier access later


Journal title:
پژوهشهای جغرافیای انسانی

Publisher: مؤسسه جغرافیا

ISSN 2008-6296

volume 42(73، پاییز 1389)

issue 3 2010

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023