Post-tensioned concrete rocking walls might be used to avoid severe seismic damage at the base of
structural walls, decrease residual drift, and lessen post-earthquake repair costs. The prediction of load-induced
damage to the rocking wall resulting from seismic loading can provide an extremely valuable tool to evaluate the
status and safety of structural concrete walls following earthquakes. In this study, the behavior and the damage
state of monolithic, self-centering, rocking walls, as a new type of concrete rocking wall, are investigated. The nonlinear
mechanical behavior of the wall is first modeled numerically, and subsequently the mechanical parameters
from the numerical simulation are used to generate the local damage index. The results from the damage index
model are compared with the full-scale test results, confirming the viability of the numerically based damage index
method for estimating the seismically induced damage in concrete walls. Moreover, the estimated damage can be
utilized as a qualitative and quantitative scale to assess the status of the wall following seismic loading events.
Finally, an equation is proposed to estimate the repair cost based on the predicted damage state for the studied
structural system.
JAFARI Abouzar, DUGNANI Roberto*
. Estimation of Load-Induced Damage and Repair Cost in Post-Tensioned Concrete Rocking Walls[J]. Journal of Shanghai Jiaotong University(Science), 2018
, 23(1)
: 122
-131
.
DOI: 10.1007/s12204-018-1917-x
[1] AJRAB J J, PEKCAN G, MANDER J B. Rockingwall-frame structures with supplemental tendonsystems [J]. Journal of Structural Engineering, 2004,130(6): 895-903.
[2] HOLDEN T, RESTREPO J, MANDER J B. Seismic performance of precast reinforced and prestressedconcrete walls [J]. Journal of Structural Engineering,2003, 129(3): 286-296.
[3] PRIESTLEY M N, TAO J R. Seismic response ofprecast prestressed concrete frames with partiallydebonded tendons [J]. PCI Journal, 1993, 38(1): 58-69.
[4] PRIESTLEY M N, MACRAE G A. Seismic tests ofprecast beam-to-column joint subassemblages with unbondedtendons [J]. PCI Journal, 1996, 41(1): 64-81.
[5] KURAMA Y, SAUSE R, PESSIKI S, et al. Lateralload behavior and seismic design of unbonded posttensionedprecast concrete walls [J]. Structural Journal,1999, 96(4): 622-632.
[6] BOROSCHEK R L, Y′A ?NEZ F V. Experimental verificationof basic analytical assumptions used in theanalysis of structural wall buildings [J]. EngineeringStructures, 2000, 22(6): 657-669.
[7] YOOPRASERTCHAI E, HADIWIJAYA I J,WARNITCHAI P. Seismic performance of precastconcrete rocking walls with buckling restrained braces[J]. Magazine of Concrete Research, 2016, 68(9):462-476.
[8] RESTREPO J I, RAHMAN A. Seismic performanceof self-centering structural walls incorporating energydissipators [J]. Journal of Structural Engineering-Asce,2007, 133(11): 1560-1570.
[9] PEREZ F J, SAUSE R, PESSIKI S. Analytical and experimentallateral load behavior of unbonded posttensionedprecast concrete walls [J]. Journal of StructuralEngineering, 2007, 133(11): 1531-1540.
[10] AALETI S, SRITHARAN S. A simplified analysismethod for characterizing unbonded post-tensionedprecast wall systems [J]. Engineering Structures, 2009,31(12): 2966-2975.
[11] ERKMEN B, SCHULTZ A E. Self-centering behaviorof unbonded, post-tensioned precast concrete shearwalls [J]. Journal of Earthquake Engineering, 2009,13(7): 1047-1064.
[12] HASSANLI R, ELGAWADY M A, MILLS J E. Forcedisplacementbehavior of unbonded post-tensionedconcrete walls [J]. Engineering Structures, 2016, 106:495-505.
[13] PRETI M, MARINI A, METELLI G, et al. Full scaleexperimental investigation on a prestressed rockingstructural wall with unbonded steel dowels as shearkeys [C]// Proceedings of the 13th Conference ANIDISon Earthquake Engineering. Bologna, Italy: [s.n.],2009: 1-4.
[14] PRETI M, GIURIANI E. 2012. Full scale experimentalinvestigation on seismic structural walls[C]//FifteenthWorld Conference on Earthquake Engineering. Lisbon,Portugal: [s.n.], 2012: 1-4.
[15] PRETI M, MEDA A. RC structural wall with unbondedtendons strengthened with high-performancefiber-reinforced concrete [J]. Materials and Structures,2015, 48(1/2): 249-260.
[16] LU X, DANG X, QIAN J, et al. Experimental study ofself-centering shear walls with horizontal bottom slits[J]. Journal of Structural Engineering, 2017, 143(3):04016183.
[17] JAFARI A, GHASEMI M R, BENGAR H A, et al.Seismic performance and damage incurred by monolithicconcrete self-centering rocking walls under theeffect of axial stress ratio [J]. Bulletin of EarthquakeEngineering, 2017(12) :1-28.
[18] LAURSEN P P T. Seismic analysis and design of posttensionedconcrete masonry walls [D]. Auckland, NewZealand: University of Auckland, 2002.
[19] Computers and Structures Inc. PERFORM componentsand elements for PERFORM-3D and PERFORMCOLLAPSE[M]. Berkeley, California, USA:Computers and Structures Inc., 2011.
[20] KAPPOS A J. Analytical prediction of the collapseearthquake for R/C buildings: Suggested methodology[J]. Earthquake Engineering & Structural Dynamics,1991, 20(2): 167-176.
[21] HASSANI B, JAFARI A. An investigation on the seismicperformance of reinforced concrete panel structures[J]. Asian Journal of Civil Engineering (Buildingand Housing), 2012, 13(2): 181-193.
[22] American Society of Civil Engineering (ASCE). Seismicevaluation and retrofit of existing buildings:ASCE/SEI 41-13 [S]. Reston, Virginia, USA: ASCE,2013.
[23] ESFANDIARI A. Shear strength of structural concretemembers using a uniform shear element approach [D].Vancouver, Canada: University of British Columbia,2009.
[24] WALSH K Q, KURAMA Y C. Behavior and design ofunbounded post-tensioning strand/anchorage systemsfor seismic applications[R]. Indiana, USA: Universityof Notre Dame, 2009.
[25] STONE W C, TAYLOR A W. Seismic performance ofcircular bridge columns designed in accordance withAASHTO/CALTRANS standards [R]. Gaithersburg,Maryland, USA: National Institute of Standard andTechnology, 1993.
[26] MARTIN S. WILLIAMS I V, ROBERT G S. Evaluationof seismic damage indices for concrete elementsloaded in combined shear and flexure [J]. ACI StructuralJournal, 94(3): 315-322.
[27] HINDI R A, SEXSMITH R G. A proposed damagemodel for RC bridge columns under cyclic loading [J].Earthquake Spectra, 2001, 17(2): 261-290.
[28] KIM T H, LEE K M, CHUNG Y S, et al. Seismic damageassessment of reinforced concrete bridge columns[J]. Engineering Structures, 2005, 27(4): 576-592.
[29] Plan and Budget Organization of Iran (PBO). Iraniancomprehensive unit price schedule for building [M].Tehran, Iran: PBO, 2016 (in Persian).
