Numerical Analysis of Tunnelling Effects on Masonry Buildings: The Influence of Tunnel Location on Damage Assessment

2010 ◽  
Vol 133-134 ◽  
pp. 289-294 ◽  
Author(s):  
Giorgia Giardina ◽  
Max A.N. Hendriks ◽  
Jan G. Rots
Keyword(s):  
Urban Space ◽  
Structural Damage ◽  
Soil Structure ◽  
Coupled Model ◽  
Elastic Beam ◽  
Soil Structure Interaction ◽  
Masonry Building ◽  
Nonlinear Behaviour ◽  
Masonry Buildings ◽  
Structure Interaction

The architectural heritage is subjected to various risk factors like the lack of maintenance, the material decay and the external solicitations. Nowadays, due to the ever-increasing demand for urban space, a relevant cause of structural damage that the historical buildings experience is the ground settlement due to excavation works. In the city of Amsterdam, for example, the construction of the new North-South metro line will involve an area characterized by the presence of many ancient masonry buildings. A fundamental phase of the design of this kind of projects is the assessment of the risk of subsidence which can affect the existing structures. The actual method to perform this assessment provides for a preliminary screening of the buildings located in the area surrounding the excavation, in order to evaluate which structures are at risk of settlement induced damage. It is based on the simplification of the building as a linear elastic beam and the assumption of the absence of interaction between the soil and the structure. An improved classification system should take into account the main parameters which influence the structural response, like the nonlinear behaviour of the building and the role played by the foundation in the soil-structure interaction. In this paper, the effect on the damage mechanism of the excavation advance and the location of the tunnel with respect to the building is evaluated. Numerical analyses are performed in order to understand the effect of different settlement profiles of the ground. A coupled model of the structure and the soil is evaluated, taking into account a damage model for the masonry building and the nonlinear behaviour of the soil-structure interaction. This paper demonstrates the importance of 3D modelling; neglecting the tunnel advance can lead to an underestimation of the damage.

scholarly journals Investigation Of Soil Structure Interaction Problem For A Masonry Building

2018 ◽  
Vol 1 (1) ◽  
pp. 1010-1018
Author(s):  
Asuman Işıl Çarhoğlu ◽  
Pınar Usta
Keyword(s):  
Soil Structure ◽  
Time History ◽  
Masonry Structure ◽  
Soil Structure Interaction ◽  
Masonry Building ◽  
Structure Interaction ◽  
Motion Data ◽  
Earthquake Effect ◽  
Stone Material ◽  
Interaction Problem

When the behaviors of the structures under the earthquake effect are examined, they are assumed as fixed foundation. Since the differentiation of the soil characteristics effects the behavior of the structures, the soil structure interaction should be taken into account in the earthquake analyzes. The main objective of this research is to examine the soil structure interaction. In this research, the masonry structure with two stories constructed from the stone material is handled. In addition to this, the soil is taken into consideration as sand, clay, rock, and fixed support. The masonry structure with two stories and the different soil layers have been modeledthree-dimensionally by with SAP 2000 program. In the scope of research, Kobe ground motion data was applied to the soil-masonry structure systems by using time history method in the analysis.

scholarly journals Numerical simulation of the seismic response and soil–structure interaction for a monitored masonry school building damaged by the 2016 Central Italy earthquake

2020 ◽  
Author(s):  
A. Brunelli ◽  
F. de Silva ◽  
A. Piro ◽  
F. Parisi ◽  
S. Sica ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Seismic Response ◽  
Soil Structure ◽  
Ambient Noise ◽  
Central Italy ◽  
Soil Structure Interaction ◽  
Masonry Building ◽  
School Building ◽  
Structure Interaction ◽  
Central Italy Earthquake

AbstractDespite significant research advances on the seismic response analysis, there is still an urgent need for validation of numerical simulation methods for prediction of earthquake response and damage. In this respect, seismic monitoring networks and proper modelling can further support validation studies, allowing more realistic simulations of what earthquakes can produce. This paper discusses the seismic response of the “Pietro Capuzi” school in Visso, a village located in the Marche region (Italy) that was severely damaged by the 2016–2017 Central Italy earthquake sequence. The school was a two-story masonry structure founded on simple enlargements of its load-bearing walls, partially embedded in the alluvial loose soils of the Nera river. The structure was monitored as a strategic building by the Italian Seismic Observatory of Structures (OSS), which provided acceleration records under both ambient noise and the three mainshocks of the seismic sequence. The evolution of the damage pattern following each one of the three mainshocks was provided by on-site survey integrated by OSS data. Data on the dynamic soil properties was available from the seismic microzonation study of the Visso village and proved useful in the development of a reliable geotechnical model of the subsoil. The equivalent frame (EF) approach was adopted to simulate the nonlinear response of the school building through both fixed-base and compliant-base models, to assess the likely influence of soil–structure interaction on the building performance. The ambient noise records allowed for an accurate calibration of the soil–structure model. The seismic response of the masonry building to the whole sequence of the three mainshocks was then simulated by nonlinear time history analyses by using the horizontal accelerations recorded at the underground floor as input motions. Numerical results are validated against the evidence on structural response in terms of both incremental damage and global shear force–displacement relationships. The comparisons are satisfactory, corroborating the reliability of the compliant-base approach as applied to the EF model and its computational efficiency to simulate the soil–foundation–structure interaction in the case of masonry buildings.

scholarly journals Analysis of structural masonry buildings taking into account the construction sequence loads and soil-structure interaction

2021 ◽  
Vol 14 (6) ◽  
Author(s):  
Anna Christinna Secundo Lopes ◽  
Joel Araújo do Nascimento Neto ◽  
Rodrigo Barros
Keyword(s):  
Soil Structure ◽  
Limit State ◽  
Three Dimensional ◽  
Soil Structure Interaction ◽  
Ultimate Limit State ◽  
Masonry Building ◽  
Support Structure ◽  
Structure Interaction ◽  
Frame Model ◽  
Construction Loads

abstract: The present study assesses conventionally used design standards, analyzing the effects caused by the construction loads, that is, a gradual increase in load and stiffness during construction, and soil-structure interaction (SSI), with soil represented by linear springs, in a structural masonry building over a support structure of reinforced concrete. The equivalent frame model, developed by Nascimento Neto, was used to simulate the support structure and the first masonry floor, and a specific three-dimensional frame model to simulate the other floors. Four analysis models were applied to assess stress distribution at the base of the walls, and the stresses and displacements of the support structure. The results show that introducing SSI and the construction loads causes relief or the possible need to reinforce elements designed in Ultimate Limit State (ULS) and Serviceability Limit State (SLS), as well as uniform settlement.

Performance-based seismic assessment of an historic high-rise masonry building considering soil-structure interaction

Structures ◽  
2021 ◽  
Vol 32 ◽  
pp. 38-53
Author(s):  
Guojue Wang ◽  
Enrique Del Rey Castillo ◽  
Liam Wotherspoon ◽  
Jason M. Ingham
Keyword(s):  
Soil Structure ◽  
Seismic Assessment ◽  
Soil Structure Interaction ◽  
Masonry Building ◽  
Structure Interaction ◽  
High Rise
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