STRENGTHENING OF A REINFORCED CONCRETE BRIDGE WITH PRESTRESSED STEEL WIRE ROPES
DOI:
https://doi.org/10.14311/CEJ.2017.03.0023Keywords:
Steel Wire Ropes, Prestressed, Strengthening, RC Bridges, Field Application, Load TestAbstract
This paper describes prestressed steel wire ropes as a way to strengthen a 20-year-old RC T-beam bridge. High strength, low relaxation steel wire ropes with minor radius, high tensile strain and good corrosion resistance were used in this reinforcement. The construction process for strengthening with prestressed steel wire ropes—including wire rope measuring, extruding anchor heads making, anchorage installing, tensioning steel wire ropes and pouring mortar was described. Ultimate bearing capacity of the bridge after strengthening was discussed based on the concrete structure theory. The flexural strength of RC T-beam bridges strengthened with prestressed steel wire ropes was governed by the failure of concrete crushing. To investigate effectiveness of the strengthening method, fielding-load tests were carried out before and after strengthening. The results of concrete strain and deflection show that the flexural strength and stiffness of the strengthened beam are improved. The crack width measurement also indicates that this technique could increase the durability of the bridge. Thus, this strengthened way with prestressed steel wire rope is feasible and effective.
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Jones R., Swamy R. N., Charif A., 1988. Plate separation and anchorage of reinforced concrete beams strengthened by epoxy-bonded steel plate. Structrue Engineer, vol. 66, no. 5: 85-94
Sabahattin A., Ilker K., Bengi A., Sinan K., 2013. Strengthening and repair of reinforced concrete beams using external steel plates. Journal of Structural Engineering, vol. 139, no. 6: 929-939
Dae G. P., Byung H. O., Jae Y. C., 2003. Static and fatigue behavior of reinforced concrete beams strengthened with steel plates for flexure. Journal of Structural Engineering, vol. 129, no. 4: 527-535
Nabil F. G., Sayed G. A., Soliman A. K., Saleh K. R., 1999. Strengthening Reinforced Concrete Beams Using Fiber Reinforced Polymer (FRP) Laminates. Aci Structural Journal, vol. 188, no. 8: 865-875
Bakis C., 2002. Fiber Reinforced Polymer Composites for Construction—State-of-the-Art Review." Journal of Composites for Construction, vol.6, no. 2: 73-87
Mohammed A. S., Tarek M. K., Walid N.M., 2016. Analysis of RC Continuous Beams Strengthened with FRP Plates: A Finite Element Model. Civil Engineering Journal, vol. 2, no. 11: 576-589
Wojciech L., Ernest K., 2006. Behavior of composite beams prestressed with external tendons: Experimental study. Journal of Constructional Steel Research, vol. 62, no. 12: 1353-1366
Kiang H. T., Farooq M. A. A., Chee K. N., 2001. Behavior of simple-span reinforced concrete beams locally strengthened with external tendons. Aci Structural Journal, vol. 98, no. 2: 174-183
Keun-Hyeok Y., Dae-Bong J., Jae-Il S., Jae-Hoon K., 2012. In-plane seismic performance of unreinforced masonry walls strengthened with unbonded prestressed wire rope units. Engineering Structures, vol. 45: 449–459
Liao Z., Zhang C., Jia T., Wang H., 2017. Experimental investigation on seismic behavior of shear wall retrofitted with pre-stressed steel wire mesh and polymer mortar. Journal of Building Structures, vol. 38, no. 6: 70-77
Guo J., Deng Z.,Lin J., Lu H., 2014. Experimental study on seismic behaviour of RC columns strengthened with prestressed high strength steel wire mesh. Journal of Building Structures, vol. 35, no. 2: 128-136.
Guo J., Deng Z., Lin J., Lu H.,2014. Experimental study on seismic behaviour of RC columns strengthened with prestressed high strength steel wire mesh. Journal of Jilin University, vol. 44, no. 4
Gang W., Zhishen W., Yang W., Jianbiao J., and Yi C., 2012. Flexural strengthening of RC beams using distributed prestressed high strength steel wire rope: theoretical analysis. Structural and. Infrastructure Engineering, vol. 10, no. 2: 160-171
Gang W., Jianbiao J., Wu Z. S., Zhang M., 2010. Experimental study of RC beams strengthened with distributed prestressed high-strength steel wire rope. Magazine of concrete research, vol. 62, no. 4: 253-265
Zhang Y., Xu S., Yao X., 2010. Theoretical Analysis and Experiment on Flexural Strengthening Behaviors of Prestressed High-strength Steel Wire ropes and Polymer Mortar. China Journal of Highway and Transport, vol. 30, no. 6: 239-248
Ministry of Communications of China, 1985. Design Code of Highway Reinforced Concrete and Prestressed Concrete Bridge (JTJ023-85). China Communication Press: Beijing.
Ministry of Communications of China, 2010. Design Code of Concrete Structures (GB50010). China Building Industry Press: Beijing.
Yail J. K., Mark G., Garth J. F., 2008. Repair of Bridge Girder Damaged by Impact Loads with Prestressed CFRP Sheets. Journal of Bridge Engineering, vol. 13, no. 1: 15-23
Hamdy M. E. A., Ahmed M. A., Salah E. F. T., 2012. Behavior of Strengthened Composite Castellated Beams Pre-stressed with External Bars: Experimental Study. Arabian Journal for Science and Engineering, vol. 37, no. 6 : 1521-1534
Junsik E., Andrzej S. N., 2001. Live Load Distribution for Steel Girder Bridges. Journal of bridge Engineering, vol. 6, no. 6: 489-497
Janusz, Holowaty, 2013. Assessment of Numerical Models for Live Load Distribution in a Road Slab Bridge. Computer Technology and Application, vol. 4,: 591-598
Michael S., Jeffrey A. L., 2001. Response of Prestressed Concrete I-Girder Bridges to Live Load. Journal of bridge engineering, vol. 6, no.1: 1-8
Ministry of Communications of China, 2015. General Specification for Highway Bridge and Culvert Design (JTG D60). China Communication Press: Beijing.
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