scholarly journals Soil dynamics and earthquake engineering, vol. 1: Structural dynamics and soil structure interaction; vol. 2: Soil dynamics and liquefaction; vol. 3: Engineering seismology and site response, edited by A. S. Cakmak and I. Herrera, Computational Mechanics Publications, Southampton, 1989, No. of pages: 488,326 and 309. Price: Vol. 1 £69, Vol. 2 £49, Vol. 3 £47; Set £155. ISBN: 1-85312-054-5, 1-85312-052-9 and 1-85312-051-0

1990 ◽  
Vol 19 (5) ◽  
pp. 781-781
Author(s):  
G. B. Warburton
Keyword(s):  
Structural Dynamics ◽  
Earthquake Engineering ◽  
Soil Structure ◽  
Computational Mechanics ◽  
Site Response ◽  
Soil Dynamics ◽  
Soil Structure Interaction ◽  
Structure Interaction ◽  
Engineering Seismology

Seismic response of sands in centrifuge tests

2008 ◽  
Vol 45 (4) ◽  
pp. 470-483 ◽  
Author(s):  
Mohammad H.T. Rayhani ◽  
M. Hesham El Naggar
Keyword(s):  
Shear Modulus ◽  
Seismic Response ◽  
Soil Structure ◽  
Site Response ◽  
Damping Ratio ◽  
Soil Structure Interaction ◽  
Response Analysis ◽  
Structure Interaction ◽  
Centrifuge Tests ◽  
Seismic Site Response

Seismic site response of sandy soils and seismic soil–structure interaction are investigated using an electrohydraulic earthquake simulator mounted on a centrifuge container at an 80g field. The results of testing uniform and layered loose to medium-dense sand models subjected to 13 simulated earthquakes on the centrifuge are presented. The variation of shear modulus and damping ratio with shear strain amplitude and confining pressure was evaluated and their effects on site response were assessed. The evaluated shear modulus and damping ratio agreed reasonably with laboratory tests and empirical relationships. Site response analysis using the measured shear wave velocity and estimated modulus reduction and damping ratio as input parameters produced good agreement with the measured site response. The effect of soil–structure interaction for structures situated on dry sand is also investigated. These tests have revealed many important insights with regard to the characteristics of seismic site response and seismic soil–structure behaviour. The tests showed that the seismic response of soil deposits, input motions, and overall behaviour of the structure are affected by soil stratification. The results showed that the seismic kinematic soil–structure interaction is not very significant for structures situated on loose sand.

RECENT ADVANCES IN DYNAMIC INVESTIGATION OF LEANING TOWER OF PISA

2019 ◽  
Vol 1 (Special Issue on First SACEE'19) ◽  
pp. 21-30
Author(s):  
Camillo Nuti ◽  
Gabriele Fiorentino
Keyword(s):  
Middle Ages ◽  
Soil Structure ◽  
Site Response ◽  
Historical Seismicity ◽  
Soil Structure Interaction ◽  
Response Analysis ◽  
Dynamic Identification ◽  
World Heritage Sites ◽  
Structure Interaction ◽  
Heritage Sites

The Leaning Bell Tower of Pisa has been included in the list of the World Heritage Sites by United Nations Educational, Scientific and Cultural Organization since 1987. Over the last twenty years, the Tower has successfully undergone a number of interventions to reduce its inclination. Despite its importance in the Italian cultural heritage, no studies about the dynamic behaviour of this monument had been carried out until the 1990s. Starting from the results obtained by the Committee for the Safeguard of the Tower, a novel investigation campaign about the dynamic parameters characterising the Tower has begun in 2014. This paper aims at discussing the main results obtained until today. After a short history of the construction and of the interventions on the Tower, the following topics are discussed: a review of historical seismicity, dynamic identification, definition of seismic input, site response analysis, and seismic response accounting for soil-structure interaction. The studies made on the Tower highlight the importance of soil-structure interaction in the survival of the Tower due to strong seismic events since the middle ages.

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