جستجو در تالارهای گفتگو

EARTHQUAKE EVALUATION OF THE NON STRUCTURAL ELEMENTS IN A THERMAL POWER PLANT F. Nateghi-A., A. Rezaie Tabrizi and M. Khazaei Poul Abstract Non Structural elements such as mechanical, electrical and architectural elements always posses serious damage potentials during earthquakes. Degree of damage imposed by the non structural elements is not usually measured by the physical damages caused, but more so by the amount of the economical and functional disruptions created in a built environment. This phenomenon is enhanced where the functional performance criteria used for the specific site should be of higher standards, meaning for example the “immediate use” criteria. In order to account for this sort of possible interruptions and plan for the worst case scenario during an earthquake in a thermal power plant in Iran, a study was carried out to evaluate the seismic vulnerability status of non structural components of the main control building in this power plant. Level one and two assessment methods, namely; rapid and detailed evaluations were used. Three main documents considered for this evaluation were the MCEER and FEMA-310 and FEMA-356 recommendations. The method used and the results obtained which are classified into four hazard levels namely; very high, high, intermediate and low are to be presented in this paper. Keywords Earthquake, Evaluation, Nonstructural, Power plant, Equipment چکیده اقلام غير سازه‌ای در تأسیسات و سازه‌های نقش بسيار حياتي را در عملكرد آن‌ها ايفا می‌نمایند. با توجه به حساسيت اين اقلام و عملكرد موردنظر آن‌ها در زمان زلزله بخصوص زلزله‌های متوسط و شديد نياز مبرم براي ارزيابي عملكرد هر يك از اين اجزا موردنیاز می‌باشد. در اين پروژه براي تأسیسات حرارتي از روش‌های FEMA جهت ارزيابي عملكرد لرزه‌ای اقلام غير سازه‌ای استفاده شد و بر اساس مطالعات به اين روش‌ها جداول عملكردي هر يك از اقلام موردمطالعه ارزيابي و ارائه شد. جداول شامل چهار گزينه آسیب‌پذیری خيلي بالا، بالا، متوسط و كم می‌باشد كه در تزارهاي مختلف زلزله براي هر يك از اقلام نشان داده‌شده است روش‌های پيشنهادي عمومیت داشته و در خصوص اقلام غير سازه‌ای متفاوت در سازه‌ها و نیروگاه‌های مختلفت قابليت اجرا دارد منبع دانلود 29-1-2.pdf

Revising Iranian Experience in Establishing Pedestrian Zones; Surveying Strengths and Weaknesses of Pedestrian Zones in Tehran Original Article, D25 Fallah Manshadi E., Rouhi A. and Khodaverdi Nelkhasi Om-S. Journal. Civil Eng. Urban. 4(2): 156-163. 2014 ABSTRACT: Though the experience of pedestrian establishing in the world backs to 70 years ago, this is a new approach in Iran. In recent years, establishing pedestrian zone is getting more popular due to paradigm shift in urban governance from motorized to human based development. Pedestrian zones like 17 Shahrivar (Shohada), 15 khordad, Sepah-Salar, Soore-Esrafil, Babe-Homayoon, Naser Khosro, Marvi, Saboonian, Ehsani, Shah-Abdol- Azim, and Baradarane- Mozaffar are the results of such paradagim shift. Present paper tries to evaluate these pedestrian zones in order to determine the strengths and weeknesses of each one. Direct observations and interviews were used as research tools. The results of evaluation and comparative comparison show that from 11 pedestrian zones in Tehran, Sepahsalar, 15 khordad and Shah-Abol-Azim have the best conditions while Baradarane Mozafar and 17 Shahrivar have inappropriate situation. Although pedestrian zones in Tehran are almost in appropriate level from pedestrian facilities point of view like pavement and lightening; some factors such as lack of mixed land use, motorcycles and cars penetrating the pedestrian zones, lack of public toilets and disabled facilities, ignorance of public participation have negative effects on citizen satisfaction. Keywords: Pedestrian Zone, Evaluation, Comparative Comparison, Tehran منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(2)%20156-163,%202014.pdf J. Civil Eng. Urban., 4 (2) 156-163, 2014.pdf