Fictile tubules: A traditional Mediterranean construction technique for masonry vaulted systems

Scuro, Carmelo; Tiberti, Simone; Codispoti, Rosamaria; Olivito, Renato Sante

doi:10.1016/j.conbuildmat.2018.10.156

Cited by 16 publications

(8 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The complex of Santa Maria is subject to static instability and is characterized by cracks located in some parts of the masonry walls. Apparent damage is observed in the openings, the transverse walls and the vaults of the church, which consist of fictile tubules [7][8][9]. Moreover, clear detachment cracks can be identified between some vertical elements and their related horizontal elements, which instead have remained intact over time.…”

Section: Classification Of the Degradationmentioning

confidence: 99%

Experimental and Numerical Analyses on Sandstone Elements Obtained by 3D Printing

Scuro¹,

Tiberti²,

Porzio³

et al. 2021

12th International Conference on Structural Analysis of Historical Constructions

View full text Add to dashboard Cite

The international cultural and historical heritage is often subject to degradation and damage. The main causes contributing to these phenomena are the chemical and mechanical actions due to acid rain, environmental pollution, and earthquakes. Other causes are the cycles of freezing and thawing that induce the manifestation of internal stresses leading to the deterioration of the material and the collapse of structural parts.In the field of architectural restoration, this problem has been addressed by two main solutions. The first involves cleaning processes that leave the missing parts visible; the second consists of introducing reproductions of the missing parts, creating a clear distinction between pre-existing and new elements. In both cases, the seismic behavior of the structure is modified; in the second solution, the added elements do not contribute to the structural strength since they are made of plaster or stucco.This work aims at presenting a preliminary study on the creation of replacements of missing elements within damaged heritage buildings. The work is structured in two distinct phases. In the first phase, specific cubic specimens, created with a 3D printer, are produced and subjected to uniaxial compression tests. The experimental campaign is carried out in order to provide useful information regarding the 3D material engineering constants that are currently absent in the literature. In the second phase, the experimental results are used in a numerical model to calibrate the mechanical properties of an equivalent homogeneous material.

show abstract

Section: Classification Of the Degradationmentioning

confidence: 99%

Experimental and Numerical Analyses on Sandstone Elements Obtained by 3D Printing

Scuro¹,

Tiberti²,

Porzio³

et al. 2021

12th International Conference on Structural Analysis of Historical Constructions

View full text Add to dashboard Cite

show abstract

“…Based on the Kozeny–Carman equation, the relationship between permeability coefficient

and volume strain

can be derived [ 26 , 27 ]:

where,

is initial permeability coefficient;

is volume strain;

is initial porosity.…”

Section: Permeability Evolution Model Of Mudstone Materialsmentioning

confidence: 99%

Analysis of Damage and Permeability Evolution for Mudstone Material under Coupled Stress-Seepage

Liu

et al. 2020

Materials

View full text Add to dashboard Cite

Mudstone material in a deep roadway is under the coupled stress-seepage condition. To investigate the permeability change and damage development during rock excavation in roadways, a stress-seepage damage coupling model has been proposed. In this model, damage capacity expansion of mudstone material is considered as the initiation and propagation of micro-cracks and the fracture penetration. A damage variable is introduced into the proposed model based on the principle of minimum energy consumption. As a result, an elastoplastic damage constitutive equation is established. Then, the permeability evolution equation describing the micro-macro hydraulic behavior of mudstone is deduced via percolation theory, which can describe the characteristics of sudden permeability change after rock capacity expansion. Furthermore, a finite element model is established based on commercial finite element software-ABAQUS. The numerical model was firstly verified by comparison between experimental and simulation results. On the basis of it, numerical investigation of the temporal and spatial evolution law of pore pressure, damage and permeability coefficient during roadway excavation is undertaken. The numerical results indicate that with increase of construction time, pore pressure first increases and then decreases, while the damage zone and permeability coefficient increase gradually and finally nearly keep constant. The proposed coupling model and finite element method can describe damage and permeability evolution for mudstone material under coupled stress-seepage well.

show abstract

“…As known, by using implicit time integration schemes [22,23], the softening behavior, which is typically expected by the CDP, is hardly reproducible, since non-convergent behaviors of the solution might have happened. For these reasons, several attempts where an explicit time integration scheme to solve highly nonlinear systems under quasistatic or dynamic loads condition have been proposed in [24][25][26]. In the present work, an explicit central difference method has been adopted to integrate the equilibrium equations in the time domain.…”

Section: Nonlinear Pushover Analysismentioning

confidence: 99%

A Numerical-Geometrical Methodology to Represent Out-of-Plane Mechanisms of Unreinforced Masonry Structures by Using Pushover Analysis

Olivito¹,

Porzio²,

Funari³

et al. 2019

Proceedings of the 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

Self Cite

View full text Add to dashboard Cite

The present work is aimed to present the preliminary results of a numerical-geometrical strategy for both representing and using nonlinear static analysis outcomes. Indeed, the local collapses of structural elements, which typically involve the historical masonry structures, can produce an inaccurate evaluation of the structural performance under seismic loads. To this end, nonlinear static analysis has been used as a tool to detect the out-of-plane failure mechanisms that might occur. The general idea is to take into account an appropriate number of control points strategically where collapse mechanisms might happen. In this framework, in the position of each control point, a sphere having a size proportional to the detected displacement has been defined. A second objective is to highlight the relationship between the architectural survey, performed using Digital Photogrammetry, and the geometric definition of the structural model. The proposed approach is verified by performing numerical simulations conducted to the San Fili Castle of Stignano (RC), located in the south of Italy.

show abstract

Fictile tubules: A traditional Mediterranean construction technique for masonry vaulted systems

Cited by 16 publications

References 5 publications

Experimental and Numerical Analyses on Sandstone Elements Obtained by 3D Printing

Experimental and Numerical Analyses on Sandstone Elements Obtained by 3D Printing

Analysis of Damage and Permeability Evolution for Mudstone Material under Coupled Stress-Seepage

A Numerical-Geometrical Methodology to Represent Out-of-Plane Mechanisms of Unreinforced Masonry Structures by Using Pushover Analysis

Contact Info

Product

Resources

About