İki Boyutlu Çelik Çerçevelerin Sismik Yükler Altında Zemin Yapı Etkileşimli Analizi

Year 2018, Volume: 3 Issue: 3, 142 - 148, 31.12.2018

Cemile Özşam Mustafa Özakça

Abstract

Bu
araştırmada, zemin yapısı etkileşimli ve etkileşimsiz, 2 boyutlu çok katlı
çelik çerçeveler için doğrusal ve doğrusal olmayan zaman adım analizi
yapılmıştır. Çerçeveler 3 kattan 20 katına kadar farklı yüksekliklere sahiptir.
Zemin ve tekil temel sistemi doğrusal yaylar ve sönümleyici ile modellemek için
alt yapı analiz metodu kullanılmıştır. Ayrıca tepki-spektrum analizi
yapılmıştır. Düzce deprem ivme kaydı seçilerek spesifik tepki spektrumuna
ölçeklendirildi PGA 0.35 ve Euro code 8'e göre zemin tipi B (katı) seçildi.
Temel periyot ve zemin kesmesi, zemin-yapı etkileşimi dahil edilerek ve
edilmeyerek araştırılmış ve sonuçlar karşılaştırılmıştır.

Keywords

Çelik çerçeve, zemin yapı etkileşimi, tepki sepktrum analizi, zaman adım analizi, sismik yük, temel periyot

Soil Structure Interaction Analysis of Two Dimensional Steel Frames under Seismic Loads

Abstract

In this research work, a linear and nonlinear time history analysis for
2D multi-story steel frames on gravel soil with and without soil structure
interactions have been done. Frames have different height start from 3 stories
and up to 20 stories. A substructure method is used to model soil and shallow
(footing) foundation system by linear springs and dashpots. The response
spectrum analysis has also been done. Düzce earthquake accelerograms records
are selected and scaled to specific response spectrum with PGA 0.35 and soil
type B according to Eurocode 8 is considered. Fundamental period and base
shears have been investigated with and without soil-structure interactions; the
results have been presented and compared.

Keywords

Steel frames, soil structure interaction, response spectrum analysis, time history analysis

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