Experimental Investigation of Seismic-Induced Hydrodynamic Pressures on a Vertical Wall under Conditions of Wave Resonance
Joint Authors
Ai, Hongzhou
Yao, Lingkan
Zhou, Yiliang
Gao, MingYuan
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-09-06
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The distribution of hydrodynamic pressure acting on the structural face of a dam significantly influences the stability of the dam.
The present study investigates the development of the hydrodynamic pressure acting on the surface of a dam at different heights with respect to time during earthquakes with different dominant frequencies using a shaking table.
The results demonstrate that the variation in the hydrodynamic pressure significantly follows the seismically accelerated wave motion in the absence of resonance.
However, under conditions of resonance, the fluctuations in the hydrodynamic pressure exhibit similarities with a sine wave, and the positive peak values present some hysteresis.
The experimental pressure values in the absence of resonance present parabolic distributions with respect to the water height that are in good agreement with the corresponding hydrodynamic pressures determined by Westergaard’s equation, while conditions of wave resonance produce a uniform distribution of hydrodynamic pressures with greater values and much longer periods of increased hydrodynamic pressure than the case of nonresonance.
In addition, the seismic frequency, fundamental frequency of the reservoir, maximum peak seismic acceleration, and initial water depth are treated as variables.
An empirical equation is derived to predict the maximum hydrodynamic pressure in conjunction with wave resonance conditions.
American Psychological Association (APA)
Zhou, Yiliang& Yao, Lingkan& Gao, MingYuan& Ai, Hongzhou. 2017. Experimental Investigation of Seismic-Induced Hydrodynamic Pressures on a Vertical Wall under Conditions of Wave Resonance. Shock and Vibration،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1204515
Modern Language Association (MLA)
Zhou, Yiliang…[et al.]. Experimental Investigation of Seismic-Induced Hydrodynamic Pressures on a Vertical Wall under Conditions of Wave Resonance. Shock and Vibration No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1204515
American Medical Association (AMA)
Zhou, Yiliang& Yao, Lingkan& Gao, MingYuan& Ai, Hongzhou. Experimental Investigation of Seismic-Induced Hydrodynamic Pressures on a Vertical Wall under Conditions of Wave Resonance. Shock and Vibration. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1204515
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1204515