شماره ركورد :
974325
عنوان مقاله :
ارزيابي ميزان تاب‌آوري كالبدي شهري در برابر مخاطره زلزله مورد مطالعه: شهر زنجان
عنوان به زبان ديگر :
The evaluation of the urban fabric resiliency against earthquake risk Case Study: Zanjan
پديد آورندگان :
محمدي سرين ديزج، مهدي دانشگاه پيام نور، تهران - گروه جغرافيا , احدنژاد روشني، محسن دانشگاه زنجان - دانشكده علوم انساني - گروه جغرافيا
تعداد صفحه :
12
از صفحه :
103
تا صفحه :
114
كليدواژه :
تاب‌آوري كالبدي , زنجان , مدل توديم , زلزله
چكيده فارسي :
امروزه در دنياي فارغ از ساختارهاي مرزي، سيستم هاي پيچيده و غيرخطي سكونتگاهي شهرها با مخاطرات متعددي روبرو هستند و قابليت پيش‌بيني پاييني دارند كه در اين ميان، زلزله بارزترين آن‌هاست. در منطقه شمال غرب ايران، شهر زنجان در محاصره سه گسل خطرناك زنجان در شمال، سلطانيه در جنوب و گسل بياتلر در غرب قرار دارد. اين مقاله با شناسايي شاخص‌ها و عوامل مؤثر، ميزان تاب‌آوري كالبدي نواحي شهري زنجان را در برابر زلزله مورد ارزيابي قرار مي‌دهد. داده‌هاي به‌كاررفته، براساس معيارهاي مؤثر در ارزيابي تاب‌آوري شامل: كيفيت بنا، مصالح بنا (نوع سازه)، نماي بنا، عمر بنا، دانه‌بندي ساختمان، سطح تراكم ساختمان و سازگاري كاربري، با استفاده از مدل تصميم‌گيري چند معياره توديم، تحليل گرديده‌اند. نتايج حاصل از مطالعه نشان مي‌دهد كه با توجه به معيارهاي ارزيابي تاب‌آوري كالبدي در 25 ناحيه شهري زنجان، غالباً قسمت‌هاي شمالي، شرقي و شمال شرقي از تاب‌آوري بالايي برخوردار هستند. يعني نواحي منطبق بر بافت جديد و نسبتاً جديد شهري با 25103 نفر جمعيت به‌عنوان ارزيابي كاملاً تاب آور و نواحي منطبق بر بافت قديم، فرسوده و غيررسمي در جهات جنوب، جنوب غرب و شمال غرب مانند اسلام‌آباد، ترانس و بي‌سيم، فاطميه، مسجد يري و دباغلار جمعاً با 107267 نفر جمعيت با تاب‌آوري بسيار ضعيف شناخته شدند. اين در حالي است كه مطابق آمارنامه جمعيتي 1392، اين نواحي جزو پرجمعيت‌ترين قسمت‌هاي شهر به شمار مي‌روند. با توجه به بحث فوق و خطوط گسل زلزله كه از دو طرف شهر زنجان عبور مي‌كند بايستي اقدامات استحكامي و امنيتي در سطح بسيار بالايي هم در مسير شريان‌هاي زيرساختي و هم عناصر كالبدي به اجرا درآيد و به‌ويژه در توسعه درون‌زاي شهري بايستي مقاوم‌سازي براساس مقررات ساختماني استاندارد 2800 و ساختار جغرافيايي منطقه انجام پذيرد.
چكيده لاتين :
Iran, due to its geographical location and its human and environmental characteristics including those at risk of natural hazards there. In the area northwestern Iran, Zanjan city in three dangerous fault ,Zanjan in the north, fault Soltanieh in south and Byatlar located in West an‎d based on a hazard map for earthquake country, prepared by the International Institute of Earthquake Engineering and Seismology as well as Based on Earthquake Resistant Design of Buildings (Regulations 2800) prepared by the Research Center, Department of Housing and Urban Development and Urban Country, the relative risk of high-grade is zone. A major part of the Physical structures of Zanjan in recent decades regardless of the strength and stability of the regulations, such as Regulations 2800 is applied.On the other hand the lack of required data, including geometric and non-geometric data of the infrastructure and buildings in the city Such as the problems that have not been noted. Accordingly, this study examines the relationship between resilience Zanjan city's Against Earthquake an‎d indicators and factors affecting resilience Physical and infrastructure to identify an‎d will evaluate the resiliency Physical and infrastructure in the city of the study. The results of scientific and experimental studies in the field of natural hazards and the head of the earthquake, in the last few decades shows That the best way to deal with these risks, is be more resilient settlement in different dimensions. Settlements in risk reduction approach, resilient system that can temporarily or permanently absorb risks an‎d with conditions changing rapidly, adapted without losing its function. In this study, the analysis and evaluation; the region and evaluation criteria include Quality building, types of structures building, Old building, facade building, building density, particle size distribution and land use compatibility. With the explanation that in the analysis of the dimensions and physical infrastructure and support multi-criteria decision-making methods (model Todim) and produced for the processing of the above mentioned methods, is used Arc GIS software. This study is applied and in terms of methodology, quantitative comparative and analytical. This study from to goal ,applied and in terms of methodology, quantitative- comparative and analytical. International :::union::: strategy for disaster risk reduction program titled "Strengthening the resilience of nations and communities to disasters" in the Hyogo Framework for 2005 to 2015 plan adopted, The program, in addition to reducing vulnerability of communities in crisis, will tend to increase and improve the resilience of communities. Hyogo Framework for Action (HFA) to motivate more active at the global level in the wake of the International Decade for Disaster Reduction natural framework (2000-1990) and Yokohama Strategy adopted in 1994 and the International Strategy on Disaster Reduction (UNISDR) in 1999, was formed. After the Hyogo Framework period (2015-2005) in order to improve the resilience of nations and communities to disaster, Sendai framework (2030-2015) aimed at the Third World Conference of the United Nations Disaster Risk Reduction in Sendai, Japan in dated March 18, 2015 was adopted. Generally, in this paper, according to the definitions and objectives resilience, resilience include: 1. The destruction and damage that a system can absorb, without being out of equilibrium, 2. The ability of a system to organize and self-renewal in different situations and 3. Create and increasing learning capacity and strengthen the system's ability to cope with the situation. In this study, the analysis and evaluation; district and Evaluation criteria include the quality, type of structure, building, old building, the facade of the building, building density, particle size distribution and consistent user. With the explanation that in the analysis of the dimensions and physical infrastructure and support multi-criteria decision-making methods (Todim,s model) an‎d for processing materials produced by the above mentioned methods, GIS software ARC GIS, is used. Todim,s technique is one of the techniques used to solve multi-criteria decision making problems. The technique using pairwise comparisons among decision criteria, accidental incompatibilities of this comparisons to remove it. In this study, according to seven criteria affecting the physical dimensions and infrastructure (quality building, building structures, old building, the facade of the building, building density, particle size distribution and consistent user) to assess the resilience of the 24 districts in Zanjan, a matrix of 24 * 7 production was. After performing calculations according to the formulas described in steps 1 and 2 of this technique, the performance of each supplier to obtain. Finally, according to the formula Step 3 to obtain the minimum and maximum for each criterion to rank the areas according to the values 0 and 1 action. The highest value obtained from the best available option. This study is applied and in terms of methodology, quantitative comparative and analytical. Our results can be inferred from That regions corresponding to the North and East of Zanjan due to Old low and relatively new texture That neighborhoods Zibashahr, Amirkabir and PayenKoh, Golestan Andishe and Daneshgah alley, Golshahr Kazemieh, poonak, Vahidieh and Ansarieh covered an‎d most have regular access to the local system and network resilience were presented. But the central and southern parts of city, That old and historic neighborhoods such as Hosseinieh and Bazar, Yidde Borogh, Yery mosque and Dbaghlar are included ,Because of Ancient and worn out textur and also Islamabad Neighborhoods, trans and Bisim, Fatmieh as problematic texture, the degree of resilience of poor and very poor were evaluated. Given the discussion above earthquake fault lines that crosses the city from two sides, Strength and high-level security measures should also be implemented in the arteries of infrastructure and structural elements. On the other hand, in the historic old city neighborhoods in the city should strengthen endogenous development based on standard building regulations 2800 and the geographical structure of the region be made available.
سال انتشار :
1395
عنوان نشريه :
تحليل فضايي مخاطرات محيطي
فايل PDF :
3687260
عنوان نشريه :
تحليل فضايي مخاطرات محيطي
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