Response of Framed Buildings on Raft Foundations to Tunneling

Xu, Jingmin and Franza, Andrea and Marshall, Alec M (2020). Response of Framed Buildings on Raft Foundations to Tunneling. "Journal of Geotechnical and Geoenvironmental Engineering", v. 146 (n. 11); pp.. ISSN 1090-0241. https://doi.org/10.1061/(ASCE)GT.1943-5606.0002376.

Description

Title: Response of Framed Buildings on Raft Foundations to Tunneling
Author/s:
  • Xu, Jingmin
  • Franza, Andrea
  • Marshall, Alec M
Item Type: Article
Título de Revista/Publicación: Journal of Geotechnical and Geoenvironmental Engineering
Date: November 2020
ISSN: 1090-0241
Volume: 146
Subjects:
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ingeniería Civil: Construcción, Infraestructura y Transporte
Creative Commons Licenses: None

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Abstract

This paper investigates the response of framed buildings on raft foundations to tunnel construction using geotechnical centrifuge testing. Five framed building models were considered, and the influence of building configuration, weight, eccentricity, and soil density were evaluated. Soil and foundation displacements, frame deformed shape, maximum structure deformation parameters (deflection ratios and angular distortions), and associated modification factors are illustrated. Results indicate that unlike equivalent isotropic plates, framed buildings primarily exhibit shear behavior and a semi-flexible response. Building deformed shapes indicate that angular/shear distortions (considering bay slope and local tilt) are more appropriate for quantifying framed building distortions than deflection ratios. A relative stiffness parameter is suggested to relate maximum angular distortions to the greenfield settlement slope. Moreover, the efficiency of the available relative stiffness parameters for the deflection ratio modification factors is confirmed. Limitations of the equivalent plate approach and practical implications of the results for framed buildings are discussed.

Funding Projects

TypeCodeAcronymLeaderTitle
Horizon 2020793715TUBEURBUnspecifiedTunnelling beneath piled structures in urban areas

More information

Item ID: 63711
DC Identifier: http://oa.upm.es/63711/
OAI Identifier: oai:oa.upm.es:63711
DOI: 10.1061/(ASCE)GT.1943-5606.0002376
Official URL: https://ascelibrary.org/doi/10.1061/%28ASCE%29GT.1943-5606.0002376
Deposited by: Dr Andrea Franza
Deposited on: 10 Sep 2020 07:18
Last Modified: 10 Sep 2020 07:18
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