سیویلیکا را در شبکه های اجتماعی دنبال نمایید.

Seismic Assessment of Concrete Dams, Considering Anisotropy Caused by Lift Joints

Publish Year: 1403
Type: Journal paper
Language: English
View: 126

This Paper With 10 Page And PDF Format Ready To Download

Export:

Link to this Paper:

Document National Code:

JR_IJE-37-4_014

Index date: 10 February 2024

Seismic Assessment of Concrete Dams, Considering Anisotropy Caused by Lift Joints abstract

Concrete dams are anisotropic due to lift joints that affect their performance. Lift joints are usually ignored in numerical analyses of concrete dams and the dam body is assumed to be homogeneous and isotropic.  In this study, the seismic behavior of gravity dams was evaluated considering the anisotropy caused by lift joints, and the orthotropic and isotropic state responses were compared. Moreover, in the seismic loading range, a more detailed evaluation was done by applying the real effects of strain rate. Koyna concrete gravity dam was selected for the case study. The results showed that concrete anisotropy leads to larger dynamic displacements and greater damage to the dam body. By considering the orthotropic properties of concrete can lead to more realistic results. The maximum compressive and tensile stresses also increased in the anisotropic model compared to the homogeneous and isotropic model, indicating the usefulness of incorporating the orthotropic behavior of concrete in seismic analysis. In addition, considering the strain rate in the seismic loading range had an insignificant effect on the results. Therefore, considering the large dynamic increase factor in numerical analyses causes the error.

Seismic Assessment of Concrete Dams, Considering Anisotropy Caused by Lift Joints Keywords:

Seismic Assessment of Concrete Dams, Considering Anisotropy Caused by Lift Joints authors

R. Saeed

Department of Civil Engineering, Faculty of Engineering, University of Zanjan, Zanjan, Iran

A. J. Moradloo

Department of Civil Engineering, Faculty of Engineering, University of Zanjan, Zanjan, Iran

مراجع و منابع این Paper:

لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :
Davani Motlagh A, Sadeghian M, Javid A, Asgari M. Optimization ...
Ozturk B. Investigation of effects of ground motions on SDOF ...
Fei L, Gao L. Application of thermodynamics-based rate-dependent constitutive models ...
Kadhim M, Alfatlawi T, Hussein M. Experimental and nonlinear analysis ...
Hanindya K, Makrup L, Paulus R. Deterministic Seismic Hazard Analysis ...
نمایش کامل مراجع