Comparison of the Overlapping Lattice and the Finite Element Approaches for the Prediction of the Collapse State of Concrete Gravity Dams

Date

2017-10-13

Author

Soysal Albostan, Berat Feyza
Arıcı, Yalın
Binici, Barış
Tuncay, Kağan

Metadata

Show full item record

Item Usage Stats

319
views

0
downloads

Estimating the collapse limit state of concrete gravity dams within the framework of performance based design is challenging due to the uncertainty in modelling the response of these systems and the strong dependence of the behavior on the ground motion. In this context, the purpose of the study is to investigate the prediction capability of numerical tools in determining the collapse state of concrete gravity dams. The first tool used to this end is the classical finite element method with the smeared cracking approach. The second is the overlapping lattice model (OLM) employing pin connected bar elements extending over a predefined horizon to discretize the continuum similar to the concept used in peridynamics. Particularly suited to simulating the discrete cracking occurring in plain concrete structures, OLM has the potential to avoid the classical problems in predicting cracking on FE analyses such as the extensive spreading of the damage region. The comparison of the analysis tools were conducted using incremental dynamic analyses (IDA) for two representative dam monoliths. The results from the FE analyses and the OLM approach were markedly different, with the former displaying smeared damage on a considerable area of the dam body while in the latter, discrete, localized cracking going through the whole body was observed for the strong shaking scenarios. In contrast to the FE, the OLM approach was able to simulate the separation of the dam body through a number of discrete cracks forming from the U/S to D/S side.

Subject Keywords

Seismic analysis, Dam, Cracking, Lattice

URI

https://hdl.handle.net/11511/76256

Conference Name

4th International Conference on Earthquake Engineering and Seismology, (11-13 Ekim 2017)

Collections

Department of Civil Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Overlapping Lattice Simulation of Concrete Gravity Dam Collapse Simulations SOYSAL, BERAT FEYZA; Aydın, Beyazıt Bestami; Tuncay, Kağan; Arıcı, Yalın; Binici, Barış (2017-09-01) Estimating the collapse limit state of concrete gravity dams within the framework of performance based design is challenging due to the uncertainty in modelling the response of these systems and the strong dependence of the behavior on the ground motion. The purpose of the study is to investigate the seismic expected damage levels by using the overlapping lattice modeling (OLM) approach with incremental dynamic analysis (IDA) for two representative dam monoliths. OLM employs pin connected bar elements exten...
Comparison of the overlapping lattice and thefinite element approaches for the prediction of the collapse state of concrete gravity dams Soysal, Berat Feyza; Arıcı, Yalın; Binici, Barış; Tuncay, Kağan (null; 2017-10-11) Estimating the collapse limit state of concrete gravity dams within the framework of performance based design is challenging due to the uncertainty in modelling the response of these systems and the strong dependence of the behavior on the ground motion. In this context, the purpose of the study is to investigate the prediction capability of numerical tools in determining the collapse state of concrete gravity dams. The first tool used to this end is the classical finite element method with the smeared crac...
Simulation of damage propagation on massiveconcrete structures, the overlapping lattice model v.s.The finite element approach Soysal, Berat Feyza; Arıcı, Yalın; Binici, Barış; Tuncay, Kağan (2017-10-11) The increase in the computational power enables the performance based assessment of very large structures like concrete gravity dams. These assessments are usually carried out with the traditional finite element tools. The continuum based formulation of these analyses in the absence of costly re-meshing operations cast doubt on the performance assessment of such massive plain concrete structures given the primary output assessed for these analyses should be the crack propagation and opening on the dam body....
Analysis Methods for the Investigation of the Seismic Response of Concrete Dams Aldemir, Alper; Yilmazturk, Sema Melek; Yucel, Ali Riza; Binici, Barış; Arıcı, Yalın; Akman, Altug (2015-01-01) The consideratiOn of the dam-foundation-reservoir interaction is extremely important for estimating the seismic response of concrete gravity dams. Moreover, nonlinear analysis may be required for determining the possible risk associated with dams. In order to address these issues, DSI recently published the "Guidelines for Seismic Design of Concrete Dams". Authors who have contributed to the preparation of this document provide a perspective on the seismic safety/design of concrete dams and structural analy...
Evaluation and selection of ground motion intensity measures for nonlinear seismic demand and fragility analysis of MDOF systems Kadaş, Koray; Yakut, Ahmet; Department of Civil Engineering (2021-5-21) In performance-based seismic design methodology, intensity measures are thought to be key parameters of ground motion records that relate the seismic hazard levels with the structural response or damage. Therefore, it is important to identify efficient intensity measures that are capable of reducing the variability in seismic demand predictions. There exist several simple-to-advanced scalar and vector ground motion intensity measures; however, the literature is limited in the number of comparative studies i...

Citation Formats

B. F. Soysal Albostan, Y. Arıcı, B. Binici, and K. Tuncay, “Comparison of the Overlapping Lattice and the Finite Element Approaches for the Prediction of the Collapse State of Concrete Gravity Dams,” presented at the 4th International Conference on Earthquake Engineering and Seismology, (11-13 Ekim 2017), Eskişehir, Türkiye, 2017, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/76256.