Nonlinear seismic response evaluation of tunnel form building structures

Balkaya, Can; Kalkan, Erol

doi:10.1016/s0045-7949(02)00434-0

Cited by 40 publications

(26 citation statements)

References 11 publications

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“…Therefore, the monolithic structural shape of tunnel form buildings, including only shear walls and slabs as load carrying and transferring members, provides considerable earthquake resistance. This conclusion was also experienced from the results obtained by three-dimensional non-linear seismic performance evaluations of tunnel form buildings by Balkaya and Kalkan [4]. For these structures, shear walls and slabs have almost the same thickness, less than those of standard building slabs.…”

Section: Structural Importance Of Tunnel Form Buildingssupporting

confidence: 58%

Estimation of fundamental periods of shear‐wall dominant building structures

Balkaya

Kalkan

2003

Earthq Engng Struct Dyn

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SUMMARYShear-wall dominant multistorey reinforced concrete structures, constructed by using a special tunnel form technique are commonly built in countries facing a substantial seismic risk, such as Chile, Japan, Italy and Turkey. In spite of their high resistance to earthquake excitations, current seismic code provisions including the Uniform Building Code (International Conference of Building O cials, Whittier, CA, 1997) and the Turkish Seismic Code (Speciÿcation for Structures to be Built in Disaster Areas, Ankara, Turkey, 1998) present limited information for their design criteria. In this study, consistency of equations in those seismic codes related to their dynamic properties are investigated and it is observed that the given empirical equations for prediction of fundamental periods of this speciÿc type of structures yield inaccurate results. For that reason, a total of 80 di erent building conÿgurations were analysed by using three-dimensional ÿnite-element modelling and a set of new empirical equations was proposed. The results of the analyses demonstrate that given formulas including new parameters provide accurate predictions for the broad range of di erent architectural conÿgurations, roof heights and shear-wall distributions, and may be used as an e cient tool for the implicit design of these structures.

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Section: Structural Importance Of Tunnel Form Buildingssupporting

confidence: 58%

Estimation of fundamental periods of shear‐wall dominant building structures

Balkaya

Kalkan

2003

Earthq Engng Struct Dyn

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“…The smeared reinforcement model was treated as an equivalent uniaxial layer of the material at the appropriate depth and smeared out over the element as several orthotropic layers. Transferring the strength and stiffness of the reinforcement directly into the concrete elements, this model is the easiest to implement particularly for the modeling of mesh-reinforcement [12]. Stress-strain behavior of the steel was modeled using a bilinear relationship.…”

Section: D Nonlinear Finite Element Modelingmentioning

confidence: 99%

Failure mechanism of shear-wall dominant multi-story buildings

Yüksel

Kalkan

2008

WIT Transactions on the Built Environment

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The recent trend in the building industry of Turkey as well as in many European countries is towards utilizing the tunnel form (shear-wall dominant) construction system for development of multi-story residential units. The tunnel form buildings diverge from other conventional reinforced concrete (RC) buildings due to the lack of beams and columns in their structural integrity. The vertical load-carrying members of these buildings are the structural-walls only, and the floor system is a flat plate. Besides the constructive advantages, tunnel form buildings provide superior seismic performance compared to conventional RC frame and dual systems as observed during the recent devastating earthquakes in Turkey (1999 M w 7.4 Kocaeli, M w 7.2 Duzce, and 2004 M w 6.5 Bingol). With its proven earthquake performance, the tunnel form system is becoming the primary construction technique in many seismically active regions. In this study, a series of nonlinear analyses were conducted using finite element (FE) models to augment our understanding on their failure mechanism under lateral forces. In order to represent the nonlinear behavior adequately, The FE models were verified with the results of experimental studies performed on three dimensional (3D) scaled tunnel form building specimens. The results of this study indicate that the structural walls of tunnel form buildings may exhibit brittle flexural failure under lateral loading, if they are not properly reinforced. The global tension/compression couple triggers this failure mechanism by creating pure axial tension in the outermost shear-walls.

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“…The initial work and analysis of tunnel form building was conducted by [1]. Followed by [2] who were carried out experiment work using tunnel form building by testing its under quasi-static cyclic lateral loadings.…”

Section: Introductionmentioning

confidence: 99%

Seismic performance on stiffness and hysteresis loop of interior wall-slab joint for tunnel form building designs to British standard

Masrom¹,

Yee²,

Mohamed³

et al. 2018

J. Fundam and Appl Sci.

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Wall-slab is a system suitable for use in the field of high-rise building where the main load resisting system is in the form rigidly connected wall-slab member. This paper presents the performance of a full-scale wall-slab joint in tunnel form system subjected to lateral cyclic loading. The objectives are to determine seismic behavior on the hysteresis loops and stiffness.Interior wall-slab joint was tested up to failure drift of 1.5%. The biggest hysteresis loops were occurred at the closest to the double actuator. The stiffness of wall-slab joint started to decrease from 0.25% drift until 0.5% drift and lost it stiffness after 0.5% drift. Incretion of the percentage of reinforcement bars in the wall-slab and proper detailing at joint is required for seismic loading.

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Nonlinear seismic response evaluation of tunnel form building structures

Cited by 40 publications

References 11 publications

Estimation of fundamental periods of shear‐wall dominant building structures

Estimation of fundamental periods of shear‐wall dominant building structures

Failure mechanism of shear-wall dominant multi-story buildings

Seismic performance on stiffness and hysteresis loop of interior wall-slab joint for tunnel form building designs to British standard

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