کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
266514 504366 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A chimney’s seismic assessment by a tuned mass damper
ترجمه فارسی عنوان
یک ارزیابی لرزه ای در یک کیمیا توسط یک کمپرسور تنظیم شده
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی


• By two finite element models the seismic behavior of the chimney is evaluated.
• The optimization of the TMD’s parameters are shown.
• By FEMs the structural improvements are evaluated.
• A structural design of the TMD support system is presented.

The paper concerns a tuned mass dumper (TMD) design to improve the seismic response of an historical chimney located in an important Italian hydraulic plant. The chimney, built at the beginning of XX century, has about 50 m total height and its structure is completely in masonry.To understand the chimney’s dynamic response and evaluate the TMD characteristics (in terms of optimum mass, stiffness and damping values) to improve the seismic response, some numerical analysis are carried out by Finite Elements Models (FEM) represented two configurations, respectively: the “chimney” (Type A) and “chimney with TMD” (Type B). Both of the configurations are investigated by two different kind of FEMs: a FEM-Model 1 characterized by beam elements and a FEM-Model 2 characterized by solid elements.In the FEMs, observing the Italian Buildings Code, the local earthquake has been applied by a spectrum-compatible accelerograms by performing a “time history” analysis. The mechanical characteristics of the masonry (elastic modulus and compressive strength) implemented in the FEMs has been already determined by a set of experimental tests.Finally, optimizing the TMD characteristics, the seismic improvements in terms of base shear, compressive/tensile stresses and top displacements are shown.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 79, 15 November 2014, Pages 290–296
نویسندگان
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