CUED Publications database

Masonry response to tunnelling: a sensitivity study on the effect of cracking and building weight

Giardina, G and DeJong, MJ and Mair, RJ (2014) Masonry response to tunnelling: a sensitivity study on the effect of cracking and building weight. In: International Masonry Conference IMC, 2014-7-7 to 2014-7-9, Guimarães.

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Abstract

Predicting damage to masonry structures due to tunnelling-induced ground movements remains a challenge for practising design engineers. Useful simplified procedures exist, but more detailed analysis has the potential to improve these procedures. This paper considers the use of finite element modelling, including non-linear constitutive laws for the soil and the structure, to simulate damage to a simple masonry structure subjected to tunnelling in sand. The numerical model is validated through comparison with the results of a series of centrifuge tests and used to perform a sensitivity study on the effect of building weight and masonry damage on the structural response. Results show a direct correlation between the weight of the structure, normalised to the relative stiffness between the structure and the soil, and the modification of the settlement profile. By including a cracking model for the masonry, the reduction in structural stiffness caused by progressive masonry damage is also proven to affect the building deflection.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Uncontrolled Keywords: Cracking Numerical modelling Masonry Settlements Soil-structure interaction Tunnelling
Subjects: UNSPECIFIED
Divisions: Div D > Geotechnical and Environmental
Div D > Structures
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:27
Last Modified: 07 Sep 2017 01:43
DOI: