Reversed In-Plane Cyclic Behavior of Posttensioned Clay Brick Masonry Walls
Publication: Journal of Structural Engineering
Volume 130, Issue 5
Abstract
A series of five large scale clay brick masonry structural walls are subjected to in-plane simulated seismic forces. The walls utilize posttensioning steel to provide flexural strength. The primary objective of the research is to investigate five basic configurations of posttensioning to determine which has the most desirable characteristics for seismic performance. In the study, the variables of interest were (1) bonded versus unbonded posttensioning steel, (2) confined versus unconfined masonry, (3) grouted versus ungrouted masonry, and (4) application of supplemental mild steel for energy dissipation. Following the results of the tests, it was shown that the best performing configuration utilized unbonded posttensioning and confinement. By utilizing unbonded posttensioning, walls have little residual deformation after loading, thus yielding structures that would require very little repair, even after large seismic events. Such behavior comes with the price of reduced energy dissipation, however. Presented in the paper are the results of the tests as well as results of a simple analysis method for prediction of wall capacity.
Get full access to this article
View all available purchase options and get full access to this article.
References
Christopoulos, C., Filiatrault, A., and Uang, C.-M.(2002). “Posttensioned energy dissipating connections for moment-resisting steel frames.” J. Struct. Eng., 128(9), 1111–1120.
International Code Council (2000). International Building Code (IBC-2000).
Jacobsen, L. S.(1930). “Steady forced vibrations as influenced by damping.” ASME Trans., 52(1), 169–181.
Kent, D. C., and Park, R.(1971). “Flexural members with confined concrete.” J. Struct. Div. ASCE, 97(7), 1969–1990.
King, D. J., Priestley, M. J. N., and Park, R. (1986). “Computer programs for concrete column design.” Research Rep. 86/12, Dept. of Civil Engineering, Univ. of Canterbury, New Zealand.
Laursen, P., and Ingham, J. M. (2000a). “Cyclic in-plane structural testing of prestressed concrete masonry walls, volume A: Evaluation of wall structural performance.” School of Engineering Rep. No. 599, Dept. of Civil and Resource Engineering, Univ. of Auckland, New Zealand.
Laursen, P., and Ingham, J. M. (2000b). “Cyclic in-plane structural testing of prestressed concrete masonry walls, volume B: Data resource.” School of Engineering Rep. No. 600, Dept. of Civil and Resource Engineering, Univ. of Auckland, New Zealand.
Lissel, S. L., Sayed-Ahmed, E. Y., and Shrive, N. G. (1999). “Prestressed masonry—The last ten years.” 8th North American Masonry Conf., Austin, Tex.
Masonry Standards Joint Committee. (2002). “Building code requirements for masonry structures (ACI 530-02/ASCE 5-02/TMS 402-02).” American Concrete Institute, Structural Engineering Institute of the American Society of Civil Engineers, The Masonry Society.
Page, A. W., and Huizer, A.(1988). “Racking tests on reinforced and prestressed hollow clay masonry walls.” Masonry Int., 2(3), 538–547.
Priestley, M. J. N., and Elder, D. M.(1983). “Stress-strain curves for unconfined and confined concrete masonry.” ACI J., 80(3), 192–201.
Priestley, M. J. N., Sritharan, S., Conley, J. R., and Pampanin, S.(1999). “Preliminary results and conclusions from the PRESSS five-story precast concrete test building.” PCI J., 44(6), 42–67.
Ricles, J. M., Sause, R., Garlock, M., and Zhao, C.(2001). “Postensioned seismic-resistant connections for steel frames.” J. Struct. Eng., 127(2), 113–121.
Rosenboom, O. A. (2002). “Posttensioned clay brick masonry walls for modular housing in seismic regions.” M.S. thesis, North Carolina State Univ., Raleigh, N.C., http://www.lib.ncsu.edu/theses/available/etd-07092002-151211/
Shultz, A. E., and Scolforo, M. J.(1999). “An overview of prestressed masonry.” Masonry Soc. J., 10(1), 6–21.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 130 • Issue 5 • May 2004
Pages: 787 - 798
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Aug 5, 2002
Accepted: Jun 11, 2003
Published online: Apr 15, 2004
Published in print: May 2004
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.