Numerical modeling of single-storey precast frame's pinned connections with a special damper
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Dosyalar
Tarih
2013
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
National Technical University of Athens
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Single-storey precast frames with pinned beam-column connections are widely used in Turkey. This type of precast structures had suffered extensive damages during the recent major earthquakes (Ceyhan (1998), Kocaeli (1999), Duzce (1999)). The damages had been generally concentrated on the pinned connections as failure of dowels or at the column bases as large plastic deformations. A special lead extrusion damper (LED) has been developed in an ongoing PhD study in Istanbul Technical University. The damper is going to be installed into the pinned connection regions of the single storey precast frames. Nearly half scaled specimens representing existing features of precast frames are planned to be tested on the shake table. Prior the experimental work, an extensive blind prediction study has been carried out through the nonlinear dynamic time history analyses of the numerical models which are representing the specimens with and without damper. The numerical models are generated with Seismostruct. The comparison of the structural behaviors between the bare frame and the frame with LED has been discussed. Although the relative drifts of the precast frame has been significantly reduced, the observed base shear demand moderately increased by the installation of the LED.
Açıklama
4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2013 -- 12 June 2013 through 14 June 2013 -- Kos Island -- 104617
Anahtar Kelimeler
Lead extrusion damper, Numerical modeling, Pinned beam-column connections, Single storey precast frames, Civil engineering, Computational methods, Concrete beams and girders, Engineering geology, Extrusion, Structural dynamics, Beam - column connection, Istanbul Technical University, Large plastic deformation, Lead extrusion dampers, Nonlinear dynamic time-history analysis, Pre-cast, Precast structure, Structural behaviors, Numerical models
Kaynak
ECCOMAS Thematic Conference - COMPDYN 2013: 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Proceedings - An IACM Special Interest Conference
