Dynamic simulation of shaking table tests for a shearwall building having torsion

Download
2012
Nazırzadeh, Saeıdeh
Simulating the non-linear response of reinforced concrete (RC) buildings subjected to a sequence of input earthquake records, is an extremely complex concern in the field of the Earthquake Engineering. Buildings with no symmetry in plan have much more complicated behavior under earthquake effects than symmetric buildings. Torsional irregularity in plan is the main topic of many current researches. In previous decades, considerable amount of numerical and experimental studies have been conducted, but more researches are needed in order to confirm a better understanding of the concept of seismic behavior of these structures. In this study modeling and analyses efforts to simulate the experimental response of a scaled three dimensional reinforced concrete shear wall structure tested on a shaking table, are presented. The model structure is a ¼ scale of a three story reinforced concrete building that has torsion due to plan irregularity and layout of structural walls. In order to simulate response quantities measured for the specimen tested on a shaking table, a series of non-linear time history analyses were performed. This structure subjected to AZALEE shaking table tests in Saclay, France under the project of “SMART 2008” which was led by CEA (Atomic energy agency). The model building was tested under a set of bi-directional synthetic and real ground motions that have varying intensities, peak ground accelerations ranging from 0.1g to 1g. Ground motions were applied sequentially to the specimen, starting with the one having the smallest intensity. Displacements and accelerations measured at different locations on the plan at third story were compared with the numerically computed values in order to check the validity of the Finite Element Model that has been obtained in ANSYS ver.12.1.

Suggestions

Linear modal combination procedure for structural dynamics
Tanışer, Sadun; Sucuoğlu, Haluk; Department of Civil Engineering (2013)
Earthquake engineering practice utilizes different analysis procedures in the estimation of seismic demands on structures. These procedures are mainly divided into two groups as static and dynamic procedures. Dynamic procedures are more accurate than the static procedures since they include the entire history of any response parameter during the ground motion. Nevertheless, there are also approximate but much simpler static analysis procedures that overcome high computational demands and inherent difficulti...
Ground motion simulations based on regional input parameters and their impact on insurance premiums: Bursa case
Ünal, Barış; Askan Gündoğan, Ayşegül; Kestel, Sevtap Ayşe; Department of Earthquake Studies (2015)
Determination of earthquake parameters are required for earthquake resistant design and retrofitting of exsisting structures. There are not many options to obtain earthquake data for regions with no or sparce earthquake recordings. Even though some methods are aplicable to these regions they generate only peak ground motion parameters. For cases that require the full ground motion simulations are necessary. Simulations can also be used for gaining knowledge about source, path and site effects. In this study...
Seismic behavior of semi-precast concrete shear walls
Karimi Zindashti, Golnesa; Binici, Barış; Department of Civil Engineering (2016)
Successful performance of well-designed and constructed precast concrete elements in earthquake resistant structures, has led to widespread use of these kind of elements all around the world. Fast construction, high quality of precast concrete units and high durability are just a few advantages of these elements to be favored over cast-in-situ structures by engineers, and thus to cause seeking the ways to minimize their disadvantages. The main disadvantage of precast concrete elements in construction is the...
Investigation of seismic isolation efficiency for building structures
Özdemir, Seda; Yakut, Ahmet; Ay, Bekir Özer; Department of Earthquake Studies (2016)
The main goal of this study is to assess the efficacy of seismic isolation for building type of structures with different structural systems, namely, dual systems and moment frame systems having also different number of floors. Specific to this study, the main parameters employed for efficacy assessment will be the interstorey drift ratio and floor acceleration since both structural and non-structural damage to be occured in a system are directly related to these two parameters. To assess the variations in inter...
Derivation of site-specific UHS based on simulated ground motions and its parametric effects on building fragility
Azari Sisi, Aida; Askan Gündoğan, Ayşegül; Department of Civil Engineering (2016)
Estimation of seismic demands is essential for the purpose of structural seismic design and analyses. It is significant to obtain reliable ground motion amplitudes to estimate seismic damage on structures in a realistic manner. The ground motion simulation methodologies provide a physical approach to estimate seismic demands in the regions with sparse recording data and scarce networks. This dissertation consists of two main parts: In the first part, site-specific uniform hazard spectrum (UHS) of Erzincan r...
Citation Formats
S. Nazırzadeh, “Dynamic simulation of shaking table tests for a shearwall building having torsion,” M.S. - Master of Science, Middle East Technical University, 2012.