ASSESSMENT OF USING REINFORCED AND PRE-STRESSED MASONRY TO UPGRADE LATERAL LOAD CAPACITY OF BARRAGE PIER | ||||
| The International Conference on Civil and Architecture Engineering | ||||
| Article 32, Volume 9, 9th International Conference on Civil and Architecture Engineering, May 2012, Page 1-13 PDF (1.16 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/iccae.2012.44272 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Yasser El-Hakem; Ahmed Hashad | ||||
| Associate Professor, Construction Research Institute, National Water Research C enter, Egypt. | ||||
| Abstract | ||||
| ABSTRACT Masonry barrages are considered one of the most important water structures in Egypt. They control water levels in the River Nile and its branches and canals. It is very important to keep them working in good condi tion to assure good water management and distribution process. Most of barrages in Egypt have been built many years ago using masonry bricks without steel reinforcement. Due to their importance it is essential to protect these structures from the risk of earthquakes. Also some of these masonry barrages have been belt hundreds years ago and still working till now. The new barrages in Egypt were built using reinforced concrete. The cost of reinforced concrete structures is much higher than masonry structures. The main problem of the masonry structures is their low resistance to lateral load especially in the out of plane direction which causes over stress in the barrage piers during earthquakes. This research was performed to investigate the effect of us ing reinforcement masonry and pre - stressed masonry to increase the seismic load capacity of barrage piers in the out of plane direction. These two techniques could be used in new structures or in existing structures. Three masonry piers were built on a s haking table using ordinary masonry, reinforced masonry, and pre-stressed masonry. These piers were exposed to cyclic loads with different frequencies to model the earthquake. Finite element model was developed for the tested piers. Dynamic analyses were performed using the same input motion of the shaking table. The results of the experimental and the numerical models were compared to adjust the numerical model. Another finite element models were developed for typical masonry barrage using ordinary and re inforced masonry. Time history dynamic analyses were performed to investigate the effect of earthquakes on their responses. Guidelines for the assessment of the use of reinforced and pre -stressed techniques in construction and strengthening of masonry barr ages were suggested. | ||||
| Keywords | ||||
| Reinforced; pre-stressed masonry; barrages; dynamic test; and seismic design | ||||
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