Araştırma Çıktıları | Web Of Science

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    RC beam strengthening using precast RC plate bonding technique
    Demir, A; Bagci, M; Tekin, M; Nuhoglu, A
    The behaviour of RC beams strengthened with precast RC plates of rectangular and U cross-section is studied in the paper. An experimental investigation was conducted to assess effectiveness of strengthening with precast plates. The investigation was supported with the 2-D nonlinear finite element analysis (NLFEA). The NLFEA results showed a good level of correlation with test results. The proposed technique is considered to be a good alternative to RC jacketing and the technique is practical, economical and reliable for buildings or bridges with a greater number sisof similar beams.
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    Shaking table study of masonry buildings with reinforced plaster
    Basaran, H; Demir, A; Bagci, M; Ercan, E
    The objective of this study is to determine seismic behaviour of masonry buildings with reinforced plaster mortar, with a particular focus on the modification of structural response due to application of the polypropylene and steel reinforced plaster, as compared to an ordinary type of plaster. The resistance of one-storey single-span masonry buildings subjected to seismic load on the shaking table is investigated in the study. Experimental results revealed natural periods, response acceleration spectrums, and spectrum interactions of masonry buildings. In addition, finite element models of test buildings were established, and their results were compared with those obtained during experimental study.
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    Influence of stirrup spacing in concrete column on its dynamic characteristics
    Basaran, H
    Changes in natural frequencies, modal shapes, and damping ratios of a two story single span reinforced concrete building having different stirrup spacing in columns are analysed in the paper. Two building models measuring 150 x 150 x 135 cm were manufactured for the testing. Dynamic properties of both buildings were experimentally determined using the operational modal analysis. The ABAQUS finite element software was used to numerically determine dynamic properties of the buildings. The effect of stirrup densification in columns on dynamic properties of the building was defined by comparing experimental and numerical analysis results.
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    Analysis of submarine outfalls subjected to wave load
    Gücüyen, E
    Significant improvements have been made in recent years in the field of submarine outfall construction technology. Such an advancement, resulted in structural improvements of submarine outfalls, especially with regard to diffuser pipes, risers, and ports. The paper focuses on the modelling of one part of submarine outfall, namely the diffuser pipes made of various materials, and on the effects of their surroundings (internal and external flows). The fluid structure interaction technique is applied in the analyses. The analyses conducted in the paper show that the highest stress values are obtained in the pipe-riser connections. Highest displacements are observed when wave load is axially applied on the structure.
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    Analysis of guyed steel lattice mast subjected to environmental loads
    Erdem, RT
    Steel lattice masts rank among the most efficient load-bearing structures in the field of high-rise construction. The non-linear analysis of a guyed steel lattice mast is conducted using the SAP 2000 finite-element program for different ice thickness values at 1500 m of altitude. After definition of the geometrical model and cross-section properties, various load combinations are analysed. Finally, the wind speed - ice thickness relationship is obtained, and the maximum wind speed that the structure can withstand is determined for varying ice thicknesses.
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    Impact behaviour of concrete beams
    Erdem, RT; Gucuyen, E; Kantar, E; Bagci, M
    The determination of behaviour of structural members under load has become increasingly prominent with current advances in technology. The effect of impact on solids should not be ignored. The impact behaviour of non-reinforced concrete beams is investigated in this study both experimentally and using the finite element analysis. Members are tested in laboratory, and the ABAQUS software is used in the analysis. Accelerations, velocities, displacements, impact forces, and energy absorption capacities, have been obtained in the scope of these analyses.