Numerical damage assessment of Haghia Sophia bell tower by nonlinear FE modeling

Bayraktar, Alemdar; Şahin, Abdurrahman; Özcan, Deniz; Yildirim, Faruk

doi:10.1016/j.apm.2009.03.033

Cited by 49 publications

(18 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The homogenization process consists in replacing the repetition of a heterogeneous elementary cell through a homogeneous one whose constitutive relationships are derived from the characteristics of its individual components [8], [13], [14], [47]. However, in the scientific literature, the assumption of an isotropic concrete model has proven to be able to reasonably predict the masonry behaviour as long as proper material definition is provided [48], [49], [50], [51]. In this paper, as a preliminary study, the Concrete Damage Plasticity (CDP) model was selected to model the constitutive behaviour of the timber-mortar material.…”

Section: Non-linear Analysis Resultsmentioning

confidence: 99%

The effects of in-plane shear displacements at the springings of Gothic cross vaults

Carfagnini

Baraccani

Silvestri

et al. 2018

Construction and Building Materials

View full text Add to dashboard Cite

Extensive damages recorded during recent strong Italian earthquakes highlighted how vulnerable masonry vaults are and what deformations they receive from the rest of the building, which can be simulated as two phenomena: (i) a dynamic response of the vault itself, above the lateral walls and piers, and (ii) a pseudo-static response of the vault to imposed displacements at its springings, triggered by significant movement from the lateral walls and piers. This paper aims at improving knowledge in this field by simulating the first of these phenomena as static shear deformation at the springings. An experimental programme was set on a model of a typical quadripartite square Gothic cross vault (from the aisle of the Holyrood Abbey in Edinburgh). The test on a 1:4 scaled model had the shear displacement applied by moving two abutments in the longitudinal sense until failure, recording the crack pattern evolution and displacements of the ridges, identifying the diagonal cracks normal to the shear displacement that cause the damage and collapse in the vault. The crack pattern was validated with linear and non-linear numerical models, confirming particular observations like the uplift of the ridges and concentration of damage along the notional shear diagonal. Non-linear models are capable of capturing not only the crack pattern evolution, but also the vertical and horizontal displacements of the structure.

show abstract

Section: Non-linear Analysis Resultsmentioning

confidence: 99%

The effects of in-plane shear displacements at the springings of Gothic cross vaults

Carfagnini

Baraccani

Silvestri

et al. 2018

Construction and Building Materials

View full text Add to dashboard Cite

show abstract

“…It is more practise oriented due to the reduced time and memory requirements as well as a user-friendly mesh generation. Indeed, this type of modelling is most valuable when a compromise between accuracy and efficiency is needed [19].…”

Section: Applied Constitutive Modelmentioning

confidence: 99%

Collapse and upgrading mechanisms associated to the structural materials of a deteriorated masonry tower. Nonlinear assessment under different damage and loading levels

Pineda

2016

Engineering Failure Analysis

View full text Add to dashboard Cite

“…Masonry is the oldest building and unique technique for historical structures. In order to understand the earthquake behavior of masonry structures, many studies have been conducted in the literature and earthquake behaviors were investigated using the finite element method (FEM) (Kocak, ; Lourenco, ; Ayala and Speranze, ; Apostolopoulos and Sotiropoulos, ; Betti and Vignoli, ; Bayraktar et al ., ; Bağbancı, ; Foraboschi, ; Gonen et al ., ; Parisi and Augenti, ; Parisi et al . 2013).…”

Section: Introductionmentioning

confidence: 99%

Investigation of a historic masonry structure by numerical and operational modal analyses

Nohutçu

Demir

Ercan

et al. 2015

Structural Design Tall Build

View full text Add to dashboard Cite

SUMMARYThis paper presents the results of model calibration conducted on a historical mosque called Hafsa Sultan in Manisa, Turkey. The finite element model of the mosque was calibrated by the use of the results obtained from ambient vibration tests of the structure. In order to develop a solid model of the structure, the dimensions of the structure, defects such as cracks and material degradations in the structure, and the materials used in different parts were identified. For the evaluation of the material properties of the structure, nondestructive and destructive testing methods were used. The numerical and experimental modal parameters of the structure were obtained by finite element method (FEM) and Operational Modal Analysis (OMA), respectively. The natural frequencies and corresponding mode shapes were obtained from both FEM and OMA and compared with each other. While a good compatibility was achieved between mode shapes, some differences between natural frequencies occurred. It was thought that the differences resulted from variations in the Young's modulus of masonry, cracks in elements or boundary conditions. Therefore, the finite element model was calibrated by changing material parameters. Finally, a more realistic numerical model of the mosque was put forward and the results were discussed in detail.

show abstract

Numerical damage assessment of Haghia Sophia bell tower by nonlinear FE modeling

Cited by 49 publications

References 26 publications

The effects of in-plane shear displacements at the springings of Gothic cross vaults

The effects of in-plane shear displacements at the springings of Gothic cross vaults

Collapse and upgrading mechanisms associated to the structural materials of a deteriorated masonry tower. Nonlinear assessment under different damage and loading levels

Investigation of a historic masonry structure by numerical and operational modal analyses

Contact Info

Product

Resources

About