Seismic behavior of semi-precast concrete shear walls

Karimi Zindashti, Golnesa
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 difficult detailing of the connection between the structural elements in order to ensure the integrity of the structure. Combination of precast components with other construction materials, particularly cast-in-place concrete (hybrid system) is one of the systems overcoming mentioned problem. In this study double wall (sandwich wall panel), as a hybrid system, which consists of two precast reinforced concrete layers encasing a cast-in-place concrete layer, and its seismic behavior as a shear wall have been studied. Four double walls, consisting two rectangular, one U-shaped, and one T-shaped section walls, were already tested as full scale specimens subjected to cyclic horizontal load in Middle East Technical University (2013). A series of spread-sheets were developed in order to construct the moment-curvature relation of the critical section of the walls. Accordingly, response of each element was calculated and compared with the results derived from the experimental program. After verifying a good agreement between the experimental observations and the analytical model, the performance of walls were evaluated according to ASCE/SEI-41, Eurocode 8, and Turkish Earthquake Code 2007. Afterwards, seismic analysis, design and detailing of a mid-rise double wall-incorporated building were performed and finally, the performance of the building was assessed according to TEC2007.


Dynamic simulation of shaking table tests for a shearwall building having torsion
Nazırzadeh, Saeıdeh; Yakut, Ahmet; Department of Civil Engineering (2012)
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 re...
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...
Energy based seismic assessment and design
Alıcı, Fırat Soner; Sucuoğlu, Haluk; Erberik, Murat Altuğ; Department of Civil Engineering (2019)
The need to improve the reliability of current earthquake resistant design procedures has promoted energy-based concepts that employ seismic input energy and energy dissipation capacity of structures as the main design tools. Energy based approaches provide effective tools at both design and assessment stages for a comprehensive interpretation of the seismic behavior of structural systems during an earthquake excitation. Energy based assessment and design procedure includes two crucial aspects. The first on...
Seismic behavior of vertical reinforced autoclaved aerated concrete (AAC) panel walls
Taghipour, Armin; Canbay, Erdem; Binici, Barış; Department of Civil Engineering (2016)
In this study, the in-plane seismic behavior of autoclaved aerated concrete (AAC) vertical load-bearing wall panels is examined. Because of the complex behavior of AAC shear walls under cyclic lateral loading and axial load, the design provisions are fundamentally important. The main objective of this study is to validate proposed design provisions for AAC structures in Turkey. Six specimens with different properties and geometries were constructed and tested at Structural Mechanics Laboratory of METU. Mech...
Prediction of potential damage due to severe earthquakes
Yücemen, Mehmet Semih; Pay, AC (2004-01-01)
A statistical model is developed to estimate the seismic vulnerability of low- to mid-rise reinforced concrete buildings. The model is based on a novel utilization of the discriminant analysis technique of multivariate statistics. Number of stories above the ground level (N), soft story index (SSI), overhang ratio (OHR), minimum normalized lateral stiffness index (MNLSTFI), minimum normalized lateral strength index (MNLSI) and normalized redundancy score (NRS) are selected as the basic estimation variables....
Citation Formats
G. Karimi Zindashti, “Seismic behavior of semi-precast concrete shear walls,” M.S. - Master of Science, Middle East Technical University, 2016.