Scatter of dynamic response and damage of an arch dam subjected to artificial earthquake accelerograms

Wang, Jinting; Jin, Ai-Yun; Du, Xiuli; Ming-xin, WU

doi:10.1016/j.soildyn.2016.05.003

Cited by 36 publications

(7 citation statements)

References 13 publications

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“…In many cases, the response spectrum, alone, is not enough to perform an accurate structural assessment. Response spectrum analysis does not provide realistic seismic analysis in structures with damage progression, hysteretic deterioration, inelastic response, second‐order effect, and other significant nonlinear behaviors . For these cases, the structural design can be enhanced with the use of accelerograms for the time history analysis.…”

Section: Introductionmentioning

confidence: 99%

An artificial accelerogram generator code written in Matlab

Ferreira

Moutinho

Cunha

et al. 2020

Engineering Reports

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Artificial accelerograms are a very useful tool for designing structures against seismic hazards; in particular, when structures exhibit nonlinear behavior. This paper presents a Matlab code for generating artificial accelerograms to match code‐defined spectra based on the modification of actual earthquake ground motions. In this case, while the code is written to generate Eurocode 8‐compatible accelerograms, it can be easily adapted to any other code in the world. The proposed code determines the earthquake spectra and Fourier Transform using the Fast Fourier Transform algorithm and then modifies the Fourier Transform in order to match the predefined spectra. The code also includes instructions for outlining different actual ground motions, soil, and earthquake type. The code is geared to students and researchers in the field of Structural and Earthquake Engineering. The objective of this work is to provide a Matlab code that can be integrated in other research programs such as seismic structural analysis, structural control software, or other codes.

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Section: Introductionmentioning

confidence: 99%

An artificial accelerogram generator code written in Matlab

Ferreira

Moutinho

Cunha

et al. 2020

Engineering Reports

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“…Ren et al [11] proposed the use of a mixed finite element method for Shuanghe arch dam to simulate crack propagation therein and verify actual measured data with reasonable precision. Wang et al [12,13] developed a comprehensive procedure with which to analyse the seismic nonlinear behaviour of Pacoima and Dagangshan arch dams based on an arch dam-water-foundation rock system. Pan et al [14] described a nonlinear damage system for featuring damage-crack behaviour under earthquake loading using both a massless foundation input model and a viscousspring boundary model.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Stochastic Seismic Response and Index Correlation of an Arch Dam Using Endurance Time Analysis Method

Chen

et al. 2020

Advances in Civil Engineering

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The seismic dynamic response and correlation between various indicators of an arch dam under a series of stochastic earthquake excitation are analysed. Seismic response assessment of a concrete arch dam is conducted through nonlinear endurance time analysis (ETA) of a typical arch dam. The 289 m high Baihetan arch dam in Southwest China (as a case study) is subjected to a set of 10 three-component endurance time acceleration histories (ETAHs) synthesised on the basis of the design site acceleration response spectrum to increasing peak ground acceleration (PGA). The effects of dam-reservoir-foundation interaction, radiation damping of infinite rock foundation, and nonlinearities of dam material and joint contact elements are considered. The indices to failure modes of damage propagation through the dam body and the deformation and joint opening beyond the limit states of the arch dam are identified. Dynamic responses, including deformation, joint opening, and damage distribution, are statistically analysed. The dispersion and correlation of indicators are analysed by employing the coefficient of variation and coefficient of correlation, respectively. The deterministic relationships between contraction joint opening, displacement, and damage volume ratio are obtained by using a multivariate fitting method. The results show that those failure indices have similar exponential trends, and seismic intensity parameters exert a significant influence on seismic response and damage under increasing PGA. The results of correlation and fragility analysis demonstrate that damage volume ratio and the sum of joint opening are consistent, which can provide a strong scientific basis for predicting earthquake damage.

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“…There are several nonlinear models in the literature to estimate the response in terms of concrete dams' displacements which lead to similar results. Some examples of this are listed as follows; the plastic degradation method, which considers the elasto-plastic modulus' decreasing during the hysteretic cycles [1,2]; the nonlinear fracture mechanics which defines the potential crack [3]; the modelling of the joints within the dam which transmit the interaction stresses of the blocks [4]; the endurance time acceleration which is based on pushover analysis [5,6]; or the base sliding evaluation even that it is a simplified analysis accounts the nonlinear behaviour of the dam-water-foundation system [7].…”

Section: Introductionmentioning

confidence: 99%

Artificial accelerograms to estimate damage of dams by using failure criteria

Zacchei

Molina

2018

Scientia Iranica

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in structures. Master's degree in structural engineering from University Roma Tre (UNIROMA3), Italy. Bachelor's degree in civil engineering from UNIROMA3. Five scholarships, with two of them for stays in public Brazilian R&D centers: EP-USP (two years) and University of São Paulo State (UNESP) (seven months). Reviewer of SCOPUS and WoS journals, researcher in the group of Dynamic Experimental Analysis of Structures at EP-USP and member of the Portuguese Society of Seismic Engineering (SPES). Six-year work experience in engineering, especially in the major area of civil projects and structures, hydraulic engineering and road infrastructure. Civil engineer and job leader in national and international companies. Currently, he is a PhD student at UNESP in Structures. Researcher with several scientific papers published in high impact journals and presentations at congresses. AbstractThe aim of this paper is to analyse dam's damage by using two recent methodologies. The first method has been used to define the performance and response curves of concrete gravity dams. The second method defines the seismic input which has been obtained from power spectral density function consistent with the response spectrum. Both methods set themselves as efficient, practical and useful to develop quite complicated analysis as the construction of the stochastic process to define the synthetic earthquake and the estimation of cracks in the dam's body. These methodologies have been explained and revised to improve their use. The fluid behaviour contained by arch-dams is compared with the fluid behaviour in storage tanks by studying the sloshing phenomenon which is usually neglected for dams. For the mathematical modelling, interactive programming language has been used.3

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Scatter of dynamic response and damage of an arch dam subjected to artificial earthquake accelerograms

Cited by 36 publications

References 13 publications

An artificial accelerogram generator code written in Matlab

An artificial accelerogram generator code written in Matlab

Investigation of Stochastic Seismic Response and Index Correlation of an Arch Dam Using Endurance Time Analysis Method

Artificial accelerograms to estimate damage of dams by using failure criteria

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