RESPONCE OF R.C BEAMS UNDER EXTERNAL ECCENTRIC COMPRESSION FORCE | ||
| The International Conference on Civil and Architecture Engineering | ||
| Article 11, Volume 6, 6th International Conference on Civil and Architecture Engineering, May 2006, Pages 153-168 PDF (396.86 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/iccae.2006.45738 | ||
| Author | ||
| Ramadan Abd al-Aziz Askar | ||
| Assoc. Professor., Department of structure Engineering, Zagazig University, Zagazig P.O. Box 44519 Egypt., Mobile Tel. 0123573384. | ||
| Abstract | ||
| Some methods and techniques for strengthening of R. C. beams were used in the present years. These methods aimed to increase the ultimate strength capacity, decrease the elastic deformations, increase the structure safety, and serviceability. The aim of this present study is to investigate the response of R. C. beams strengthened using external eccentric compression force. In this investigation ten beams were studied, one reference and another nine beams were divided into three groups (1, 2, and 3). Each group contains three beams. The main investigated parameters are the magnitude and different eccentric ratios of external forces. The magnitude was taken constant in each group, which equals to (2.0, 2.5 and 3.0) tons for groups (1, 2, and, 3) respectively. While the eccentricity equals to (.025, 0.05, and, 0.075) meters for each beam in each group respectively. Deflection under load, mid-span, longitudinal tensile, compressive deformations about mid span, and initial cracking loads were recorded for each beam during loading up to till failure. The ultimate loads were recorded as well as modes of failure. Comparison between the tested and calculated results were considered and discussed to achieve the best recommendations. The tested results indicated the efficiency of these technique of the strengthened investigated in this research, suitability, cheaper, quickly and the simplicity for applications. | ||
| Keywords | ||
| strengthening; Eccentricity; and External Compression force; R. C. Beams | ||
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