Harçsız yığma duvarlı betonarme çerçevenin nümerik analizi

Öz

Bu çalışmada betonarme çerçeveye harçsız tuğlalı duvar etkisi nümerik analiz yoluyla araştırıldı. Harçsız tuğlalı duvarlar, geleneksel duvarlar kadar çerçeveyi rijitleştirmeden adeta bir sürtünmeli sönümleyici gibi görev yaparak, çerçevenin enerji tüketme kapasitesini arttırmaktadır ve bu konuda mevcut çalışmalar vardır. Bu çalışmada ayrıca duvarın çerçeveye bağlantısının rijit veya esnek olmasının çerçeve davranışına etkisi araştırılmıştır. Rijit birleşim için harç, esnek birleşim için ise poliüretan tabanlı yapıştırıcı kullanılmıştır. ABAQUS programı ile çerçevelere yapılan 20mm (%2.5 yanal öteleme oranı) itme analizlerinde esnek birleşim kullanılmasının kilitli duvarlı çerçevenin taşıdığı yükü arttırdığı, duvar ile çerçeve arasındaki bölgede gerilme yığılmalarını azaltarak duvarın daha az hasar almasını sağladığı görülmüştür. Duvarsız çerçeveye nazaran, harçsız tuğlalı çerçevenin enerji tüketim kapasitesi daha fazla olmuştur.

Anahtar Kelimeler

• ABAQUS
• Harçsız Yığma
• Polymer Pm
• Poliüretan Yapıştırıcı
• Esnek Birleşim

Numerical analysis of reinforced concrete frame with dry stack masonry infill

Abstract

In this study the effect of a wall with dry stack masonry to a RC frame was investigated through numerical analysis. Dry stacked walls increases the energy dissipation of frames by acting as frictional energy dissipation devices, without increasing the stiffness of frame like a traditional wall and many studies exist about this. In this study, also, the effect of the joint between wall and frame was investigated by using flexible and stiff joint. For stiff joint mortar was used, and for flexible joint, a polyurethane based adhesive was used. In the ABAQUS analysis in which the RC frames were pushed 20mm (%2.5 drift ratio), it was concluded that using flexible joint increases the load carried by frame, and decreased the damage in the wall by decreasing the stress concentrations in the region between wall and frame. When compared with the RC frame without walls, the energy dissipation of dry stacked masonry infilled frame is higher.

Keywords

• ABAQUS
• Dry stack masonry
• Polymer pm
• Polyurethane adhesive
• Flexible joint

Kaynakça

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