Title of article :
Ranking Passive Seismic Control Systems by Their Effectiveness in Reducing Responses of High-Rise Buildings with Concrete Shear Walls Using Multiple-Criteria Decision Making
Author/Authors :
Barkhordari, M.S Department of Civil and Environmental Engineering - Amirkabir University of Technology, Tehran, Iran , Tehranizadeh, M Department of Civil and Environmental Engineering - Amirkabir University of Technology, Tehran, Iran
Abstract :
In recent decades, the dual systems of steel moment-resisting frames and RC shear walls have found extensive application as lateral load-resisting systems for high-rise structures in seismically active areas. This paper investigated the effectiveness of tuned mass damper (TMD), viscous damper, friction damper, and the lead-core rubber bearing in controlling the damage and seismic response of high-rise structures with concrete shear walls. Five buildings (10, 15, 20, 25, and 30-story) with passive seismic control systems were analyzed in OpenSees using 50 seismic records. The structural responses (acceleration, drift, displacement, velocity, and base shear) were adopted as the criteria. The criteria were nondimensionalized by defining a measure to establish a relationship between the inputs (ground motions) and outputs (structural responses). At the end, Multi Criterion Decision Making (MCDM) method was employed to rank the passive seismic control systems and select the best one. The results showed application of the multiple-criteria decision-making methods in selecting a seismic upgrading strategy and earthquake engineering.
Farsi abstract :
در اين مقاله توانايي ميراگر جرمي تنظيم شونده، ميراگر ويسكوز، ميراگر اصطكاكي و جداگر هسته سربي در كاهش خرابي و پاسخهاي سازه هاي بلند داراي ديوار برشي بتني مورد بررسي قرار گرفته است. پنج ساختمان با تعداد طبقات 10 ، 15 ، 25، 20 و 30 طبقه به همراه سيستم هاي كنترل لرزهاي غير فعال تحت اثر 50 ركورد زلزله با استفاده از نرم افزار OpenSees تحليل شده اند. پاسخ هاي سازه (شتاب، دريفت، جابه جايي، سرعت و برش پايه) به عنوان معيار در نظر گرفته شده است. براي ايجاد ارتباط بين ورودي (زلزله) و خروجي (پاسخ هاي سازه) با تعريف كردن يك شاخص، مقدار كمي بي بعد براي هر معيار محاسبه شده است. در نهايت با استفاده از روش تصميم گيري چند معياره، گزينه هاي موجود براي مقاوم سازي و كنترل پاسخ سازه ها رتبه بندي شده اند.
Keywords :
Concrete Shear Walls , Multiple-Criteria Decision-Making Method , Opensees , Passive Control Systems , Tall Buildings
Journal title :
International Journal of Engineering