ارزیابی تاب آوری کالبدی شهر جهرم در برابر زلزله با هدف شناسایی بافت های فرسوده

محورهای موضوعی : فصلنامه علمی و پژوهشی پژوهش و برنامه ریزی شهری

احسان اله قناعتیان جبذری ¹ , احمدعلی خرم بخت ² , محمد ابراهیم عفیفی ³

1 - دانشجوی دکتری جغرافیا و برنامه‌ریزی شهری، واحد لارستان، دانشگاه آزاد اسلامی، لارستان، ایران.
2 - استادیار گروه جغرافیا، واحد لارستان، دانشگاه آزاد اسلامی، لارستان، ایران.
3 - استادیار گروه جغرافیا، واحد لارستان، دانشگاه آزاد اسلامی، لارستان، ایران.

تاریخ دریافت : 1399/11/02 تاریخ پذیرش : 1400/06/14 تاریخ انتشار : 1402/02/01

کلید واژه: جهرم, ایمنی, تاب‌آوری, بافت مسکونی, hot spot,

چکیده مقاله :

سکونت گاه های انسانی همواره آسیب های جبران ناپذیری ناشی از وقوع مخاطرات طبیعی به خصوص زلزله می پذیرند در این باره در راستای کاهش اثرات زلزله به عنوان قلب مخرب بافت های فرسوده شهری، توجه به رویکرد تاب آوری به عنوان الگویی جهت کاهش آسیب و افزایش راندمان افراد و ساختمان های موجود در سطح این بازه از بافت ها ارائه می گردد. در این پژوهش به دنبال ارزیابی تاب آوری کالبدی شهر جهرم در برابر خطر زلزله با هدف شناسایی بافت های فرسوده در این شهر هستیم که با رویکردی توصیفی - تحلیلی ، مبتنی بر مطالعات کتابخانه ای و بررسی های میدانی ، سعی دارد تا آسیب های ناشی از وقوع این فرآیند را بررسی و تحلیل نماید. در این بین برای بررسی وضعیت تاب آوری شهر جهرم با هدف شناسایی بافت های فرسوده از روش (Hot Spot ) از ابزار cluster & outlier analysis از مجموعه ابزار‌های موجود در Spatial Statistics Tools مربوط به نرم افزار ArcGIS استفاده شده است. نتایج این پژوهش نشان می‌دهدکه: 200696 متر مربع یعنی 19/77 درصد از مساحت کل بافت با سطوح ایمنی 0/01 و در اولویت کاملا ناایمن است قرار دارند همچنین نتایج مدیریت بهینه بافت مسکونی در برابر خطر زمین لرزه به این صورت است که 200696 متر مربع یعنی 19/77درصد از مساحت کل بافت با سطوح ایمنی 0/01 و در اولویت کاملا ناایمن است قرار دارند که بیشترین سهم از ساختمان ها را به خود اختصاص داده است.
واژگان کلیدی: تاب آوری، ایمنی، بافت مسکونی، جهرم، hot spot

چکیده انگلیسی:

man during his life has always been threatened by hostile nature of nature which may be the most destructive one .earthquake is one of the features of our planet that has sacrificed thousands of lives in the world by itself worldwide Today, due to rapid changes in cities, part of the residential fabric due to inefficiency have not been able to establish a proper relationship with their environment and provide services to users. Because not paying attention to these tissues causes the decline of the city and its heterogeneous development and the creation of new cities on the outskirts of the old city. As a case in point, the residential fabric of Jahrom was investigated due to the excessive extent of the worn fabric and the insecurity of the fabric against the earthquake risk. The present research is based on library studies and field studies in terms of development-applied purpose and in terms of the type of descriptive-analytical study method. To achieve the objectives of the research, the characteristics of the building skeleton, material type, number of floors, age, granulation, permeability, number of units and building quality were extracted. To check the safety status of worn tissue by hot spot method, cluster & outlier analysis tool, a set of tools available in Spatial Statistics Tools related to ArcGIS software has been used. The results of this study show that: 200696 square meters, ie 19.77% of the total area of the fabric with safety levels of 0.01 and is in a completely unsafe priority. Also, the results of optimal management of residential fabric against earthquake risk This is to be reconstructed for 19.77% of the total area of the tissue.

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