SEMI-VARIOGRAM FUNCTION FOR THE VERTICAL COMPONENT OF IRANIAN ACCELERATION DATA

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.

ZAFARANI HAMID; GHAFOORI SEYED MOHAMMAD MEHDI; Shafiee Mahsa

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

Journal Paper

Paper Information

Journal: BULLETIN OF EARTHQUAKE SCIENCE AND ENGINEERING Year:2018 | Volume:5 | Issue:1 Page(s): 1-10

Download Full-Text

Persian Verion

View:

754

Download:

Cites:

Information Journal Paper

Title

SEMI-VARIOGRAM FUNCTION FOR THE VERTICAL COMPONENT OF IRANIAN ACCELERATION DATA

Author(s)

ZAFARANI HAMID | GHAFOORI SEYED MOHAMMAD MEHDI | Shafiee Mahsa | Issue Writer Certificate

Keywords

SEMI

VARIOGRAM

SPATIAL CORRELATION

VERTICAL COMPONENT

Abstract

The evaluation of potential human and economic losses arising from earthquakes, which may affect urban infrastructures that are spatially extended over an area, is important for national authorities, local municipalities, and the insurance and reinsurance industries. However, seismic-risk analysis of distributed systems and infrastructures need to apply a different approach with respect to the classical site-specific hazard and risk analysis. Ground motion intensity measures (IMs) and resulting structural responses are correlated in neighborhood sites. The correlation value depends on the distance between the adjacent sites and the natural vibration period of structures. In particular, when a lifeline system is of concern, classical site-specific hazard tools, which consider IMs at different locations independently, may not be accurate enough to assess the seismic risk. In fact, modeling of ground motion as a random field, which consists of assigning a SPATIAL CORRELATION to the IM of interest, is required. It is very common in the seismic design of spatially distributed structures and lifelines to include the correlation of the nearby earthquake records, through empirical SEMI-variogram functions. In this study, the SEMI-variogram of VERTICAL COMPONENTs as a function of inter-site separation distance with respect to the ground motion prediction equations for the Iranian acceleration data (vertical peak ground acceleration (PGA) and vertical pseudo spectral acceleration (PSA)) are presented for the first time using acceleration data from 220 earthquakes. The calculations were carried out for five natural vibration periods in the range of 0 to 3 seconds and using ground motion prediction equations for VERTICAL COMPONENT. The selected ground motion prediction equation is the local model proposed by Soghrat & Ziaeifar (2017). For estimation of empirical SEMI-variogram, two classical and robust estimators, and to fit the data, the exponential and Goda models are used. For the ground motion prediction equation by Soghrat & Zyiaeifar (2017), the values of the range (b) in the exponential model and the values of a and b in the model of Goda (i.e. a continuous function ﬁtted to experimental values in order to deduce SEMIvariogram values for any possible site separation distance, Goda & Hong, 2008) are estimated. It is observed that the correlation trend range generally increases with period.

Cites

No record.

References

No record.

Cite

APA: Copy

ZAFARANI, HAMID, GHAFOORI, SEYED MOHAMMAD MEHDI, & Shafiee, Mahsa. (2018). SEMI-VARIOGRAM FUNCTION FOR THE VERTICAL COMPONENT OF IRANIAN ACCELERATION DATA. BULLETIN OF EARTHQUAKE SCIENCE AND ENGINEERING, 5(1 ), 1-10. SID. https://sid.ir/paper/265867/en

Vancouver: Copy

ZAFARANI HAMID, GHAFOORI SEYED MOHAMMAD MEHDI, Shafiee Mahsa. SEMI-VARIOGRAM FUNCTION FOR THE VERTICAL COMPONENT OF IRANIAN ACCELERATION DATA. BULLETIN OF EARTHQUAKE SCIENCE AND ENGINEERING[Internet]. 2018;5(1 ):1-10. Available from: https://sid.ir/paper/265867/en

IEEE: Copy

HAMID ZAFARANI, SEYED MOHAMMAD MEHDI GHAFOORI, and Mahsa Shafiee, “SEMI-VARIOGRAM FUNCTION FOR THE VERTICAL COMPONENT OF IRANIAN ACCELERATION DATA,” BULLETIN OF EARTHQUAKE SCIENCE AND ENGINEERING, vol. 5, no. 1 , pp. 1–10, 2018, [Online]. Available: https://sid.ir/paper/265867/en

Related Journal Papers