Kutu Kesitli Birleşimlerde Ek Levhası Şeklinin Moment Taşıma Kapasitesine Etkisi

Sanayileşmenin gelişmesiyle ülkemizde çelik yapılar özellikle sanayi yapıları, hafif konut yapıları, pazar yeri, otopark alanı vb. alanlarda yaygın kullanılmaya başlamıştır. Hafif ve kolay bulunabilen kutu kesitlerin kullanımında özellikle birleşim bölgelerinde istenmeyen lokal burkulma problemleri oluşmaktadır. Birleştirilen kutu kesitlerin özellikle boyutlarının farklı olması durumunda dar kesit geniş kesitli yüzeyde lokal burkulmaya neden olmaktadır. Çalışmada literatürde deneysel analizi yapılan kutu kesitli kolon-kiriş birleşiminin sonuçları ABAQUS programı kullanılarak doğrulanmıştır. Doğrulanan sayısal modeller kullanılarak; birleşim bölgesi levhalı, yan sargılı levhalı ve rijitleştirme levhalı detaylar kullanılarak model sayısı artırılmıştır. ABAQUS programı kullanılarak farklı birleşim detayına sahip modeller eğilme momenti altında analiz edilmiş ve sistem davranışı belirlenmeye çalışılmıştır. Yapılan analizlerde en etkili sonucun rijitleştirme levhalı durum olduğu görülmüştür.

Anahtar Kelimeler:

Kutu Kesitli Birleşim; Başlık Levhası, Rijitleştirme Levhası; Lokal Burkulma, Box-Section Joint; Stiffening Plate; Rigidity Plate; Local Buckling

Effect of Joint Plate Shape on Moment Carrying Capacity in Box Section Joints

With the development of industrialization, steel structures in our country, especially industrial structures, light housing structures, bazaar, car parks etc. have been widely used in the fields. In the use of lightweight and easily available box sections, undesirable local buckling problems occur especially in the joint areas. Especially when the dimensions of the joined box sections are different, the narrow section causes local buckling on the large section surface. In the study, the results of the box-section column-beam joint, which were experimentally analyzed in the literature, were verified using the ABAQUS program. Using verified numerical models; the number of models has been increased by using details with joint zone plate, side wrap plate and stiffening plate. By using the ABAQUS program, models with different joint details were analyzed under bending moment and the system behavior was tried to be determined. In the analyses made, it was seen that the most effective result was the case with the stiffening plate.

Keywords:

Box-Section Joint; Stiffening Plate; Rigidity Plate; Local Buckling,

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