Posttensioned Hybrid Coupled Walls under Lateral Loads
Publication: Journal of Structural Engineering
Volume 130, Issue 2
Abstract
This paper describes an analytical investigation of a new type of hybrid coupled wall system for seismic regions. Coupling of concrete walls is achieved by posttensioning steel beams to the walls using unbonded posttensioning tendons. Different from conventional hybrid coupled walls, the coupling beams of the new system are not embedded into the walls. The effect of structural design parameters such as the amount of posttensioning, beam properties, and wall properties on the behavior of multistory coupled walls under lateral loads, including the amount of coupling, energy dissipation, and displacement capacity is investigated. Systems with precast concrete walls as well as monolithic cast-in-place reinforced concrete walls are considered. The behavior of posttensioned coupled wall systems is compared with the behavior of systems with embedded steel coupling beams and systems without coupling. Design tools to estimate the nonlinear lateral load-displacement behavior of the walls are developed by quantifying selected limit states for the walls. The results indicate that posttensioned hybrid coupled walls with initial stiffness similar to walls with embedded steel coupling beams can be designed to provide stable levels of resistance under lateral loads over large nonlinear cyclic deformations. The degree of coupling between the walls can be controlled by changing the amount of posttensioning in the beams, as well as other beam and wall properties.
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References
Cheok, G., and Lew, H.(1993). “Model precast concrete beam-to-column connections subjected to cyclic loading.” PCI J., 38(4), 80–92.
Christopoulos, C., Filiatrault, A., Folz, B., and Uang, C.-M.(2002). “Posttensioned energy dissipating connections for moment-resisting steel frames.” J. Struct. Eng., 128(9), 1111–1120.
El-Sheikh, M., Sause, R., Pessiki, S., and Lu, L.(1999). “Seismic behavior and design of unbonded post-tensioned precast concrete frames.” PCI J., 44(3), 54–71.
El-Tawil, S., and Kuenzli, C.(2002). “Pushover of hybrid coupled walls. II: Analysis and behavior.” J. Struct. Eng., 128(10), 1282–1289.
El-Tawil, S., Kuenzli, C., and Hassan, M.(2002). “Pushover of hybrid coupled walls. I: Design and modeling.” J. Struct. Eng., 128(10), 1272–1281.
Harries, K.(2001). “Ductility and deformability of coupling beams in reinforced concrete coupled walls.” Earthquake Spectra, 17(3), 457–478.
Harries, K., Gong, B., and Shahrooz, B.(2000). “Behavior and design of reinforced concrete, steel, and steel-concrete coupling beams.” Earthquake Spectra, 16(4), 775–799.
Harries, K., Mitchell, D., Cook, W., and Redwood, R.(1993). “Seismic response of steel beams coupling concrete walls.” J. Struct. Eng., 119(12), 3611–3629.
Kurama, Y.(2000). “Seismic design of unbonded post-tensioned precast walls with supplemental viscous damping.” ACI Struct. J., 97(4), 648–658.
Kurama, Y.(2002). “Hybrid post-tensioned precast concrete walls for use in seismic regions.” PCI J., 47(5), 36–59.
Kurama, Y., Sause, R., Pessiki, S., and Lu, L. W.(1999). “Lateral load behavior and seismic design of unbonded post-tensioned precast concrete walls.” ACI Struct. J., 96(4), 622–632.
Kurama, Y., Sause, R., Pessiki, S., and Lu, L. W.(2002). “Seismic response evaluation of unbonded post-tensioned precast walls.” ACI Struct. J., 99(5), 641–651.
Mander, J., Priestley, M., and Park, R.(1988). “Theoretical stress-strain model for confined concrete.” J. Struct. Eng., 114(8), 1804–1826.
Paulay, P., and Priestley, M. (1992). Seismic design of reinforced concrete and masonry buildings, Wiley, New York.
Prakash, V., Powell, G., and Campbell, S. (1993). “DRAIN-2DX base program description and user guide; Version 1.10.” Rep. No. UCB/SEMM-93/17, Dept. of Civil Engineering, Univ. of California, Berkeley, Calif.
Priestley, M., Sritharan, S., Conley, J., and Pampanin, S.(1999). “Preliminary results and conclusions from the PRESSS five-story precast concrete test building.” PCI J., 44(6), 42–67.
Rahman, A., and Restrepo, J. (2001). “Earthquake resistant precast concrete buildings: Seismic performance of cantilever walls prestressed using unbonded tendons.” Rep. No. 2000-5, Dept. of Civil Engineering, Univ. of Canterbury, Christchurch, New Zealand.
Ricles, J., Sause, R., Garlock, M., and Zhao, C.(2001). “Posttensioned seismic-resistant connections for steel frames.” J. Struct. Eng., 127(2), 113–121.
Ricles, J., Sause, R., Peng, S., and Lu, L.(2002). “Experimental evaluation of earthquake resistant posttensioned steel connections.” J. Struct. Eng., 128(7), 850–859.
Shahrooz, B., Remmetter, M., and Qin, F.(1993). “Seismic design and performance of composite coupled walls.” J. Struct. Eng., 119(11), 3291–3309.
Shen, Q., and Kurama, Y.(2002). “Nonlinear behavior of post-tensioned hybrid coupled wall subassemblages.” J. Struct. Eng., 128(10), 1290–1300.
Shen, Q., Kurama, Y., and Weldon, B. (2004). “Seismic analysis, behavior, and design of unbonded post tensioned hybrid coupled walls.” Structural Engineering Research Rep. No. NDSE-04-01, Dept. of Civil Engineering and Geological Sciences, Univ. of Notre Dame, Notre Dame, Ind.
Thomsen, J. (1995). “Displacement based design of reinforced concrete structural walls: An experimental investigation of walls with rectangular and T-shaped cross-sections.” PhD dissertation, Clarkson Univ., Potsdam, N.Y.
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Information
Published In
Journal of Structural Engineering
Volume 130 • Issue 2 • February 2004
Pages: 297 - 309
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Sep 17, 2002
Accepted: Feb 6, 2003
Published online: Jan 16, 2004
Published in print: Feb 2004
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