Improving the dynamic behaviour of adjacent buildings by connecting them with fluid viscous dampers
Başlık çevirisi mevcut değil.
- Tez No: 401440
- Danışmanlar: DOÇ. DR. MUHAMMAD N. S. HADI
- Tez Türü: Yüksek Lisans
- Konular: Maden Mühendisliği ve Madencilik, Mühendislik Bilimleri, İnşaat Mühendisliği, Mining Engineering and Mining, Engineering Sciences, Civil Engineering
- Anahtar Kelimeler: Adjacent bui1dings, Fluid viscous damper, Eartbquake excitations, A time-history ana1ysis, Paranıetne study
- Yıl: 2009
- Dil: İngilizce
- Üniversite: University of Wollongong
- Enstitü: Yurtdışı Enstitü
- Ana Bilim Dalı: Mühendislik Bilimleri Ana Bilim Dalı
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 139
Özet
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Özet (Çeviri)
Building structures are often huilt close to each other hecause of lack of availahle land in metropolitan cities. To reduce the response of a structure to earthquake excitation, various types of control system devices have heen proposed for adjacent huildings. One of the methods to mitigate structural seİsmic response is installing supplemental damping devices hetween adjacent huildings. This study proposes to develop a method for analyzing the random seİsmic response of a structural system consisting of two adjacent huildings interconnected hy fluid vİscous damping devices. The reduction of displacement, acceleration and shear force responses of adjacent huildings are proposed in this study, using fluid vİscous dampers for adjacent huildings. The specific ohjectives of this studyare carried out in three parts. Firstly, dynamic equations to formulate the equations of motion for two adjacent huiIdings connected with fluid viscous dampers in both two and multi degree of freedom systems are written hy drawing the free body diagrams for the lumped masses. Secondly, the effectiveness of fluid viscous dampers with two damping coefficients İn consİderation of the three-dimensİonal vibration mitigation analysİs İs investigated when the dampers are connected at all the floors in the adjacent structures suhjected the El Centro 1940, the Kobe 1995, the Northridge 1994 and the Loma Prieta ı 989 ground excitations for NS and EW directions, using both a response spectrum analysis and a time-history analysis. Finally, the optimal placement of the fluid viscous dampers instead of placing them at all the floors in order to minimize the cost of the dampers is studied in this study. The results of this study demonstrate that the fluid damper of parameters derived hased on two damping coefficients İs heneficial to reduce the responses of the adjacent structures under the selected earthquakes. Further, the diagonal location of fluid viscous dampers provides the reduction of displacement, acceleration and shear force responses of adjacent hui1dings in NS and EW directions. The Analysis results of this study show that placing fluid vİscous dampers at selected floors wiIl result in a more efficİent structural system to mitigate earthquake effects.
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