Frequency sensitive dynamic stiffness of the soil base-Reference-Cited by-同舟云学术

Frequency sensitive dynamic stiffness of the soil base

Published:2023-12-25 Issue:6 Volume: Page:82-91
ISSN:2618-9283
Container-title:Earthquake Engineering. Construction Safety
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Author:

Semenov Daniil A.,Shokin Aleksey A.,Churikova Alyona I.

Abstract

This article describes a method for calculating the frequency sensitive dynamic stiffness of the soil base using the finite element method. The main advantage of the method is the ability to take into account the heterogeneity of the properties of the base when calculating dynamic stiffness. Requirements for creating a design model, special boundary conditions, size and type of finite elements, and processing of results are presented. Based on the calculation results, a comparison with standard dynamic stiffnesses was made. It is shown that due to the presence of layering in the base, the standard and numerical dynamic stiffness have significant discrepancies. A solution to the test problem of determining the dynamic stiffness for a rectangular stamp on a layered base is presented. A comparison of the calculation results with a known solution shows the acceptable accuracy and reliability of the solution and confirms the correctness of the proposed calculation method

Publisher

Russian Association for Earthquake Engineering and Protection from Natural and Manmade Hazard - RAEE

Reference12 articles.

1. СП 14.13330.2018 «Строительство в сейсмических районах. Актуализированная редакция СНиП II-7-81*». М.: ФАУ ФЦС, 2014. / SP 14.13330.2018 «Stroitel'stvo v sejsmicheskih rajonah. Aktualizirovannaya redaktsiya SNiP II-7-81*». M.: FAU FCS, 2014. [In Russian]

2. НП-031-01 Нормы проектирования сейсмостойких атомных станций, 2001. / NP-031-01 Normy proektirovaniya sejsmostojkikh atomnykh stantsij, 2001. [In Russian]

3. Seismic Analysis of Safety-Related Nuclear Structures and Commentary. ASCE-4-16 / American Society of Civil Engineers (ASCE), 2017. 229 p.

4. Саргсян А.Е. Динамика и сейсмостойкость сооружений атомных станций: монография / А.Е. Саргсян. – Саров: ФГУП «РФЯЦ-ВНИИЭФ», 2013. 550 с. / Sargsyan A.E. Dinamika i sejsmostojkost' sooruzhenij atomnykh stantsij: monografiya / A.E. Sargsyan. – Sarov: FGUP «RFYAC-VNIIEF», 2013. 550 p. [In Russian]

5. Gazetas G. Analysis of Machine Foundation Vibrations: State of The Art. International Journal of Soil Dynamics and Earthquake Engineering, 1983, 2(1), pp. 2–42. DOI: 10.1016/0261-7277(83)90025-6