COMPARISON OF COUPLED AND DECOUPLED MODAL APPROACHES IN SEISMIC ANALYSIS OF CONCRETE GRAVITY DAMS IN TIME DOMAIN

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

SAMII ALI; LOTFI VAHID

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR) Year:2010 | Volume:42 | Issue:2 Page(s): 37-47

Download Full-Text

Persian Verion

View:

912

Download:

Cites:

Information Journal Paper

Title

COMPARISON OF COUPLED AND DECOUPLED MODAL APPROACHES IN SEISMIC ANALYSIS OF CONCRETE GRAVITY DAMS IN TIME DOMAIN

Author(s)

SAMII ALI | LOTFI VAHID | Issue Writer Certificate

Keywords

CONCRETE GRAVITY DAMQ3

DECOUPLED MODAL APPROACHQ3

COUPLED MODESQ3

DYNAMIC ANALYSISQ2

Abstract

In spite of the fact that different methods are available for DYNAMIC ANALYSIS of concrete dams, researchers are still studying other more efficient alternatives. Modal approach can highly improve the efficiency of analysis, since the response of dam must be generally calculated for several earthquake ground motion records. In this paper, two different methods have been considered for DYNAMIC ANALYSIS of CONCRETE GRAVITY DAMs including dam-reservoir interaction (with pressure degrees of freedom for fluid domain). The coupled modal approach utilizes the COUPLED MODES of the system for the analysis, and the DECOUPLED MODAL APPROACH employs the decoupled modes of system for this purpose. Calculation of the COUPLED MODES involves some complications, due to its corresponding unsymmetrical eigen-problem induced. However, dynamic equation of motion can be solved very efficiently by using this method. In decoupled approach, the symmetry in the assumed corresponding eigen-problem results in faster calculation of modes. The equation of motion can also be solved with reasonable speed in this method.In the last part of this paper, analysis of a typical dam-reservoir system is performed by both methods mentioned above. Both of these approaches have shown to be very efficient and have their own advantages at point of view of the calculation cost and memory allocations.

Cites

No record.

References

No record.

Cite

APA: Copy

SAMII, ALI, & LOTFI, VAHID. (2010). COMPARISON OF COUPLED AND DECOUPLED MODAL APPROACHES IN SEISMIC ANALYSIS OF CONCRETE GRAVITY DAMS IN TIME DOMAIN. AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR), 42(2), 37-47. SID. https://sid.ir/paper/165518/en

Vancouver: Copy

SAMII ALI, LOTFI VAHID. COMPARISON OF COUPLED AND DECOUPLED MODAL APPROACHES IN SEISMIC ANALYSIS OF CONCRETE GRAVITY DAMS IN TIME DOMAIN. AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR)[Internet]. 2010;42(2):37-47. Available from: https://sid.ir/paper/165518/en

IEEE: Copy

ALI SAMII, and VAHID LOTFI, “COMPARISON OF COUPLED AND DECOUPLED MODAL APPROACHES IN SEISMIC ANALYSIS OF CONCRETE GRAVITY DAMS IN TIME DOMAIN,” AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR), vol. 42, no. 2, pp. 37–47, 2010, [Online]. Available: https://sid.ir/paper/165518/en

Related Journal Papers