dc.contributor.author	Namazi, Eshagh
dc.date.accessioned	2024-08-21T14:59:44Z
dc.date.available	2024-08-21T14:59:44Z
dc.date.issued	2012
dc.description	Thesis (PhD. (Civil Engineering))
dc.description.abstract	The construction of tunnel in urban area can induce ground displacement which distort and, in severe cases, damage overlying buildings and services. The earlier methods to predict building damage assumed the building as two-dimensional elastic deep beam with building cracking is associated with the current state of tensile strain in the wall. However, when the structures are subjected to threedimensional displacements such as twist, the building cannot be analysed using the simple deep-beam approach. The aim of this research is to obtain new damage criteria for buildings undergoing twist including the effect of tilt movement. This study improves the previous assessment methods by idealising building as thick elastic plate that enables analysis of three-dimensional building distortion using simplified closed-form solutions. A number of case studies of damaged building were used to assess the ability of this method to predict the damage. Furthermore, the relative stiffness of structure to soil in modifying the distribution surface settlement from tunnel excavation was investigated through parametric study of threedimensional finite element model using ABAQUS. The tunnels were excavated in London clay with validation of ground settlement being made to the previous Jubilee Line Extension project. An isotropic non-linear elastic-perfectly plastic soil model, using Mohr-Coulomb failure criterion was adopted in this study. The results show that the presence of the building affects the twist deformation and in the most of the cases reduce settlement in comparison to those in the greenfield condition. However in the case of low building stiffness, and when the tunnel is excavated with skew angle less than 30° relative to the existing buildings, the twist displacement can be greater than those when no structure is at present. A new set of design curves is established based on these results to estimate the building twist from the greenfield condition. These investigations have lead to an improved understanding of the threedimensional tunnel-soil-building interaction problem
dc.description.sponsorship	Faculty of Civil Engineering
dc.identifier.uri	https://openscience.utm.my/handle/123456789/1298
dc.language.iso	en
dc.publisher	Universiti Teknologi Malaysia
dc.subject	Structural control (Engineering)
dc.subject	Buildings—Performance
dc.subject	Buildings—Deterioration
dc.title	Assessment of building performance under ground movement due to tunnel construction
dc.type	Thesis
dc.type	Dataset

Assessment of building performance under ground movement due to tunnel construction

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