هندسة المباني

ACCURACY ASSESSMENTS OF DIGITAL ELEVATION MODELS CREATED USING DIFFERENT INTERPOLATION TECHNIQUES

للكاتبين  Fahmy F. Asal*, and Raaed Hassouna* Faculty of Engineering, Menoufia University, Egypt ABSTRACT: Due to increasing availability of digital elevation data and rapid advances in computer technology the utilization of Digital Elevation Models (DEM) in Surveying and Mapping have greatly expanded in the last several years (Lo and Yeung, 2004). Ground surveying measurements either using conventional techniques or using …

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THE ROLE OF THE ADHESIVE POLYMER IN THE BEHAVIOR OF CONCRETE WRAPPED WITH GFRP

للكاتب R.M. ABD El-NABY 1 Sherouk Faculty of Engineering ,Benha University ABSTRACT: Although the Advanced Composite Materials ACM are currently used in the field of civil engineering, their applications are still very limited and specific for different reasons. Definitely, the ACM have superior macro-structural characteristics, but they may not the dominant factor that governs the structural behavior of a composite …

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EVALUATION OF CONCRETE EXPOSED TO FIRE UNDER AXIAL COMPRESSION LOAD USING THE FIRE TEST FACILITY “FTF

للكاتب R.M. Abd El-Naby Shoubra Faculty of Engineering, Benha Branch, ABSTRACT: Statistical studies implemented worldwide deduced that exposing concrete structures to fire is still a challenging problem from the structural and economical points of views. Researchers attributed this to the complex nature of the concrete structure in the field and the inexistence of a reliable test facility that can predict …

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THE BEHAVIOR OF CONCRETE EXPOSED TO FIRE: ANALYTICAL AND EXPERIMENTAL INVESTIGATION

للكاتبين R.M. ABD El-NABY , O. RAMADAN ,A. A. Aleem Shoubra Faculty of Engineering, Benha University. ABSTRACT The prediction and/or evaluation of the fire influence on the behavior of concrete is still implemented based on either microscopic or macroscopic techniques. Definitely none of them as an individual technique can provide the actual behavior or performance of the concrete. It is …

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AN IMPROVED QUADRILATERAL ELEMENT FOR GENERAL PLANE ELASTICITY PROBLEMS

للكاتبين Hamadi Djamel1, Mellas Mekki1 and Belounar Lamine1 1 Department of Civil Engineering , Biskra University Biskra –Algeria- ABSTRACT: The present paper examines an improved quadrilateral strain based element that satisfies both compatibility and equilibrium equations in order to give supplementary amelioration. This element has two degrees of freedom (d.o.f) at each corner node in addition to the central internal …

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CALCULATION OF FUNDAMENTAL PERIOD OF INFILLED REINFORCED MOMENT RESISTING FRAMES

للكاتبين G.B. SHERIF, H.E.EL KHORAIBIE, M.H. KOTB and A.A.SUMMRA Department of Civil Engineering Faculty of Engineering, Al-Azhar University Abstract Ambient vibration measurements of many buildings have been recorded across the world in the past to determine their dynamic properties, in particular, to ascertain the properties of the fundamental modes of vibration. It is also recognized that the experimental data from …

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FLEXURAL BEHAVIOR OF OVER REINFORCED HELICALLY CONFINED CONCRETE BEAMS

للكاتب Abdou Khalaf Mohamed Structural Eng., AL Azhar University, Qena, Egypt ABSTRACT Over reinforced concrete sections are brittle, and fail suddenly without warning, so it is restricted in codes of practice of concrete design. In some cases such as high rise building and bridges, it is useful to use a high percentage of steel reinforcement in concrete sections (over reinforced …

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FE ANALYSIS OF COMPLEX DISCONTINUOUS INFILLED FRAME DUE TO LOSS OF SOIL SUPPORT

للكاتبين Eman A. El-Shamy, Gouda M. Attia, Hosain M. Bondok and Shymaa M.Mukhtar Structural Eng. Dept., Faculty of Eng., Zagazig University ABSTRACT: In civil engineering practice, there is a variety of structures with interface discontinuities where the assumption of rigid interconnection between the contact surfaces is questionable. The infilling wall-frame-soil interaction problem is one of complex discontinuous and jointed structural …

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USING RECYCLED BUILDING IN HOT ASPHALT MIX

للكاتبين Manal Abd Alla Ahmed , Mahmoud El-saied Solyman Zagazig University ABSTRACT As a result of reconstruction of existing buildings and pavements, the amount of demolition materials is increasing every year. At the same time approval of additional facilities for waste disposal or treatment are become more difficult to obtain. Furthermore increasing restrictive environmental regulations have made waste disposal more …

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L1-NORM ESTIMATION FOR CORRELATED OBSERVATIONS

للكاتب Ashraf Aly Elkoushy Surveying and Photogrammetry Civil Engineering Department Faculty of Engineering Suez Canal University– Port Said – Egypt ABSTRACT For correlated observations an L1-norm adjustment can be achieved, if the original observations are transformed into Helmert’s equivalent observations which are no more correlated and posse’s unit weight as can be expected by factorial analysis. The objective function then …

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