Numerical Investigation of the Sliding Response of Flexible Structures Founded on a Deformable Granular Layer

Anastasios Tsiavos; Nicholas Alexander; Anastasios Sextos

Numerical Investigation of the Sliding Response of Flexible Structures Founded on a Deformable Granular Layer

Anastasios Tsiavos, Nicholas Alexander, Anastasios Sextos

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

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Abstract

This study focuses on the numerical investigation of the sliding response of flexible structures, simulating school buildings located in Nepal. A deformable granular layer is proposed for the seismic isolation of these structures, aiming at the reduction of their seismic damage. The displacement and acceleration response of the isolated structure is investigated for a wide range of analytical pulse ground motion excitations and one recorded ground motion excitation. The seismic behaviour of the deformable granular layer is compared to the behaviour of a rigid-plastic sliding layer of the same strength. The increased energy dissipation of the deformable sliding layer that emerges from its oscillation before sliding can lead to a significant reduction of the acceleration of the isolated structure.

Original language	English
Title of host publication	2nd International Conference on Earthquake Engineering and Post Disaster Reconstruction Planning (ICEE-PDRP 2019) 25-27 April 2019, Bhaktapur, Nepal
Publisher	International Conference on Earthquake Engineering and Post Disaster Reconstruction Planning (ICEE-PDRP)
Pages	116-125
Number of pages	10
Publication status	Published - 25 Apr 2019

Publication series

Name
ISSN (Print)	1505-0737

Keywords

Seismic isolation
Granular materials
Sliding displacement

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Tsiavos, A., Alexander, N., & Sextos, A. (2019). Numerical Investigation of the Sliding Response of Flexible Structures Founded on a Deformable Granular Layer. In 2nd International Conference on Earthquake Engineering and Post Disaster Reconstruction Planning (ICEE-PDRP 2019) 25-27 April 2019, Bhaktapur, Nepal (pp. 116-125). International Conference on Earthquake Engineering and Post Disaster Reconstruction Planning (ICEE-PDRP).

Tsiavos, Anastasios ; Alexander, Nicholas ; Sextos, Anastasios. / Numerical Investigation of the Sliding Response of Flexible Structures Founded on a Deformable Granular Layer. 2nd International Conference on Earthquake Engineering and Post Disaster Reconstruction Planning (ICEE-PDRP 2019) 25-27 April 2019, Bhaktapur, Nepal. International Conference on Earthquake Engineering and Post Disaster Reconstruction Planning (ICEE-PDRP), 2019. pp. 116-125

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Tsiavos, A, Alexander, N & Sextos, A 2019, Numerical Investigation of the Sliding Response of Flexible Structures Founded on a Deformable Granular Layer. in 2nd International Conference on Earthquake Engineering and Post Disaster Reconstruction Planning (ICEE-PDRP 2019) 25-27 April 2019, Bhaktapur, Nepal. International Conference on Earthquake Engineering and Post Disaster Reconstruction Planning (ICEE-PDRP), pp. 116-125.

Numerical Investigation of the Sliding Response of Flexible Structures Founded on a Deformable Granular Layer. / Tsiavos, Anastasios; Alexander, Nicholas; Sextos, Anastasios.
2nd International Conference on Earthquake Engineering and Post Disaster Reconstruction Planning (ICEE-PDRP 2019) 25-27 April 2019, Bhaktapur, Nepal. International Conference on Earthquake Engineering and Post Disaster Reconstruction Planning (ICEE-PDRP), 2019. p. 116-125.

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

TY - GEN

T1 - Numerical Investigation of the Sliding Response of Flexible Structures Founded on a Deformable Granular Layer

AU - Tsiavos, Anastasios

AU - Alexander, Nicholas

AU - Sextos, Anastasios

PY - 2019/4/25

Y1 - 2019/4/25

N2 - This study focuses on the numerical investigation of the sliding response of flexible structures, simulating school buildings located in Nepal. A deformable granular layer is proposed for the seismic isolation of these structures, aiming at the reduction of their seismic damage. The displacement and acceleration response of the isolated structure is investigated for a wide range of analytical pulse ground motion excitations and one recorded ground motion excitation. The seismic behaviour of the deformable granular layer is compared to the behaviour of a rigid-plastic sliding layer of the same strength. The increased energy dissipation of the deformable sliding layer that emerges from its oscillation before sliding can lead to a significant reduction of the acceleration of the isolated structure.

AB - This study focuses on the numerical investigation of the sliding response of flexible structures, simulating school buildings located in Nepal. A deformable granular layer is proposed for the seismic isolation of these structures, aiming at the reduction of their seismic damage. The displacement and acceleration response of the isolated structure is investigated for a wide range of analytical pulse ground motion excitations and one recorded ground motion excitation. The seismic behaviour of the deformable granular layer is compared to the behaviour of a rigid-plastic sliding layer of the same strength. The increased energy dissipation of the deformable sliding layer that emerges from its oscillation before sliding can lead to a significant reduction of the acceleration of the isolated structure.

KW - Seismic isolation

KW - Granular materials

KW - Sliding displacement

UR - https://www.icee-pdrp.com

M3 - Conference Contribution (Conference Proceeding)

SP - 116

EP - 125

BT - 2nd International Conference on Earthquake Engineering and Post Disaster Reconstruction Planning (ICEE-PDRP 2019) 25-27 April 2019, Bhaktapur, Nepal

PB - International Conference on Earthquake Engineering and Post Disaster Reconstruction Planning (ICEE-PDRP)

ER -

Tsiavos A, Alexander N, Sextos A. Numerical Investigation of the Sliding Response of Flexible Structures Founded on a Deformable Granular Layer. In 2nd International Conference on Earthquake Engineering and Post Disaster Reconstruction Planning (ICEE-PDRP 2019) 25-27 April 2019, Bhaktapur, Nepal. International Conference on Earthquake Engineering and Post Disaster Reconstruction Planning (ICEE-PDRP). 2019. p. 116-125

Numerical Investigation of the Sliding Response of Flexible Structures Founded on a Deformable Granular Layer

Abstract

Publication series

Keywords

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SAFER Seismic safety and resilience of schools in Nepal

Cite this

Numerical Investigation of the Sliding Response of Flexible Structures Founded on a Deformable Granular Layer

Abstract

Publication series

Keywords

Access to Document

Handle.net

Other files and links

Fingerprint

Projects

SAFER Seismic safety and resilience of schools in Nepal

Cite this