This page has only limited features, please log in for full access.

Prof. Claudia Casapulla
Department of Structures for Engineering and Architecture, University of Napoli Federico II, Via Forno Vecchio 36, 80134, Napoli, Italy

Basic Info


Research Keywords & Expertise

0 Contact Mechanics
0 Earthquake Engineering
0 Structural Analysis
0 Masonry Structures
0 Architectural heritage

Fingerprints

Masonry Structures
Structural Analysis

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

The user biography is not available.
Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Journal article
Published: 05 July 2021 in Construction and Building Materials
Reads 0
Downloads 0

The seismic vulnerability of masonry buildings to out-of-plane failure mechanisms is frequently related to poor connections between orthogonal walls. The effectiveness of these connections represents a necessary condition to transfer the horizontal action to the in-plane stressed walls, allowing a box behaviour of the whole structure. Steel injected anchors or tie rods have been widely used in the past to improve connections between orthogonal walls, but proper analytical approaches to evaluate their effectiveness are still a matter of ongoing research. On the other hand, many seismic codes nowadays require assessing the safety improvement achieved with the strengthening interventions and the compatibility with masonry of many techniques has become a matter of debate in the light of the damage frequently caused by the same interventions. In this framework, the present paper focuses on the possibility of using injected anchors made of innovative materials, as pultruded CFRP tubes, in conjunction with traditional grout. For this purpose, a macro-block model, previously validated for the analysis of unreinforced stone masonry structures, is further developed to account for the contribution of these innovative strengthening systems in the out-of-plane response of masonry walls with T-shaped connections. The model, also considering the contributions of frictional resistances at masonry bed joints, is based on the kinematic approach of limit analysis. Literature results concerning full-scale tests of a T-shaped wall are assumed as a reference to validate the proposed approach. Then, the validated model is used to investigate the influence of some design parameters on the performance of the reinforced system and a first attempt to address the design of strengthening interventions with injected anchors is presented.

ACS Style

A. Maione; C. Casapulla; M. Di Ludovico; A. Prota; F. Ceroni. Efficiency of injected anchors in connecting T–shaped masonry walls: a modelling approach. Construction and Building Materials 2021, 301, 124051 .

AMA Style

A. Maione, C. Casapulla, M. Di Ludovico, A. Prota, F. Ceroni. Efficiency of injected anchors in connecting T–shaped masonry walls: a modelling approach. Construction and Building Materials. 2021; 301 ():124051.

Chicago/Turabian Style

A. Maione; C. Casapulla; M. Di Ludovico; A. Prota; F. Ceroni. 2021. "Efficiency of injected anchors in connecting T–shaped masonry walls: a modelling approach." Construction and Building Materials 301, no. : 124051.

Journal article
Published: 09 June 2021 in Materials and Structures
Reads 0
Downloads 0

Increasing interest has recently been devoted to interlocking blocks/interfaces capable to enhance the sliding resistance of masonry joints to external forces. In this framework, this paper deals with the assessment of the torsion-shear capacity of the contact interface between the lock and the main body of an interlocking block, assumed to have a cohesive behaviour. The interlocking block is a rigid unit which, on its faces, have square cuboidal locks keeping the adjacent/overlapped blocks together and preventing blocks from sliding. Two numerical approaches and a novel ad hoc experimental investigation are proposed to simulate the torsion-shear behaviour by applying eccentrical shear forces to the lock. First, concave, convex and corrected concave formulations provided by the literature for assemblages of rigid blocks with conventional planar joints are extended to model the interlocking block behaviour. Then, according to a second approach based on the discrete element method, the concave-shaped interlocking block is modelled by convex polyhedrons representing the lock and the main body of the block, considered as individual rigid units stacked over each other with a cohesive contact in between. A novel experimental investigation on the limiting pure shear and torsion-shear combinations at the lock interface made of cohesive material is also presented. Two different mortars were chosen to make the specimens, which were casted using 3D printed moulds, and different test configurations were set up to simulate shear and torsion-shear failures. The analytical and numerical results are compared with each other and against the experimental ones, with interesting remarks on the application of the different approaches.

ACS Style

Claudia Casapulla; Elham Mousavian; Luca Argiento; Carla Ceraldi; Katalin Bagi. Torsion-shear behaviour at the interfaces of rigid interlocking blocks in masonry assemblages: experimental investigation and analytical approaches. Materials and Structures 2021, 54, 1 -20.

AMA Style

Claudia Casapulla, Elham Mousavian, Luca Argiento, Carla Ceraldi, Katalin Bagi. Torsion-shear behaviour at the interfaces of rigid interlocking blocks in masonry assemblages: experimental investigation and analytical approaches. Materials and Structures. 2021; 54 (3):1-20.

Chicago/Turabian Style

Claudia Casapulla; Elham Mousavian; Luca Argiento; Carla Ceraldi; Katalin Bagi. 2021. "Torsion-shear behaviour at the interfaces of rigid interlocking blocks in masonry assemblages: experimental investigation and analytical approaches." Materials and Structures 54, no. 3: 1-20.

Journal article
Published: 03 June 2021 in Materials
Reads 0
Downloads 0

In-plane strength of masonry walls is affected by the resistant mechanisms activated in the walls, i.e., related to flexural or shear behavior. The latter one can occur in the walls according to different failure modes depending on both mortar and unit strengths and on the type of assembling, i.e., ‘regular’ or ‘irregular’ texture. In this paper, a critical review of the existing design formulations for the in-plane strength of masonry walls is firstly presented, with important information on the achievable failure modes depending on the geometrical and mechanical features of the masonry fabric. Then, experimental tests are collected from the literature and a comparison between theoretical and experimental results is carried out. The presented analyses are aimed to highlight the differences between the existing formulations and to identify the most suitable ones.

ACS Style

Thomas Celano; Luca Argiento; Francesca Ceroni; Claudia Casapulla. Literature Review of the In-Plane Behavior of Masonry Walls: Theoretical vs. Experimental Results. Materials 2021, 14, 3063 .

AMA Style

Thomas Celano, Luca Argiento, Francesca Ceroni, Claudia Casapulla. Literature Review of the In-Plane Behavior of Masonry Walls: Theoretical vs. Experimental Results. Materials. 2021; 14 (11):3063.

Chicago/Turabian Style

Thomas Celano; Luca Argiento; Francesca Ceroni; Claudia Casapulla. 2021. "Literature Review of the In-Plane Behavior of Masonry Walls: Theoretical vs. Experimental Results." Materials 14, no. 11: 3063.

Journal article
Published: 01 June 2021 in Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics
Reads 0
Downloads 0
ACS Style

Matthew Gilbert; Claudia Casapulla. Editorial: Mechanics of masonry gravity structures. Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics 2021, 174, 64 -65.

AMA Style

Matthew Gilbert, Claudia Casapulla. Editorial: Mechanics of masonry gravity structures. Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics. 2021; 174 (2):64-65.

Chicago/Turabian Style

Matthew Gilbert; Claudia Casapulla. 2021. "Editorial: Mechanics of masonry gravity structures." Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics 174, no. 2: 64-65.

Journal article
Published: 01 June 2021 in Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics
Reads 0
Downloads 0

The concept of vulnerability of the existing building stock is receiving increasing awareness and central importance in the scientific community working in earthquake risk mitigation. This assumes even more relevance when dealing with heritage structures located in relevant seismic hazard zones. The present paper aims to identify and describe the earthquake resistant features found in a unique masonry church in Ischia (Italy), and discuss their effectiveness on the impact of the post-seismic damage through the application of non-linear static analyses. The Santa Maria Maddalena Church represents one of the rare examples in which the technology of the Borbonic casa Baraccata (mixed timber-masonry construction), already well-known in the literature for its use in Italian seismic areas since the 18th century, is applied with the non-conventional combination of masonry and iron frames. The church was struck by the recent earthquake of 21th August 2017 with epicentre in Casamicciola Terme. The recorded post-seismic damage of the church evidenced non-relevant structural crack patterns, which are likely to be related to the efficacy of the construction system adopted.

ACS Style

Beatrice Di Napoli; Maria Pia Ciocci; Thomas Celano; Luca U. Argiento; Claudia Casapulla; Paulo B. Lourenço. Seismic behaviour of a mixed iron-masonry church: Santa Maria Maddalena, Ischia. Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics 2021, 174, 114 -129.

AMA Style

Beatrice Di Napoli, Maria Pia Ciocci, Thomas Celano, Luca U. Argiento, Claudia Casapulla, Paulo B. Lourenço. Seismic behaviour of a mixed iron-masonry church: Santa Maria Maddalena, Ischia. Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics. 2021; 174 (2):114-129.

Chicago/Turabian Style

Beatrice Di Napoli; Maria Pia Ciocci; Thomas Celano; Luca U. Argiento; Claudia Casapulla; Paulo B. Lourenço. 2021. "Seismic behaviour of a mixed iron-masonry church: Santa Maria Maddalena, Ischia." Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics 174, no. 2: 114-129.

Preprint content
Published: 12 May 2021
Reads 0
Downloads 0

Increasing interest has recently been devoted to interlocking blocks/interfaces capable to enhance the sliding resistance of masonry joints to external forces. In this framework, this paper deals with the assessment of the torsion-shear capacity of the contact interface between the lock and the main body of an interlocking block, assumed to have a cohesive behaviour. The interlocking block is a rigid unit which, on its faces, have locks keeping the adjacent/overlapped blocks together and preventing blocks from sliding. Two numerical approaches and a novel ad hoc experimental investigation are proposed to simulate the torsion-shear behaviour by applying eccentrical shear forces to the lock. First, concave, convex and corrected concave formulations provided by the literature for assemblages of rigid blocks with conventional planar joints are extended to model the interlocking block behaviour. Then, according to a second approach based on the discrete element method, the concave-shaped interlocking block is modelled by convex polyhedrons representing the lock and the main body of the block, considered as individual rigid units stacked over each other with a cohesive contact in between. A novel experimental investigation on the limiting pure shear and torsion-shear combinations at the lock interface made of cohesive material is also presented. Two different mortars were chosen to make the specimens, which were casted using 3D printed moulds, and different test configurations were set up to simulate shear and torsion-shear failures. The analytical and numerical results are compared with each other and against the experimental ones, with interesting remarks on the application of the different approaches.

ACS Style

Claudia Casapulla; Elham Mousavian; Luca Argiento; Carla Ceraldi; Katalin Bagi. Torsion-shear behaviour at the interfaces of rigid interlocking blocks in masonry assemblages. Experimental investigation and analytical approaches. 2021, 1 .

AMA Style

Claudia Casapulla, Elham Mousavian, Luca Argiento, Carla Ceraldi, Katalin Bagi. Torsion-shear behaviour at the interfaces of rigid interlocking blocks in masonry assemblages. Experimental investigation and analytical approaches. . 2021; ():1.

Chicago/Turabian Style

Claudia Casapulla; Elham Mousavian; Luca Argiento; Carla Ceraldi; Katalin Bagi. 2021. "Torsion-shear behaviour at the interfaces of rigid interlocking blocks in masonry assemblages. Experimental investigation and analytical approaches." , no. : 1.

Journal article
Published: 19 February 2021 in Structures
Reads 0
Downloads 0

Unreinforced stone masonry (URSM) buildings without a box-like behaviour are very vulnerable to out-of-plane failure modes in seismic prone areas. These may involve partial or total collapses of walls with severe civil protection implications in terms of hazard to people, structures, and road network in the surroundings. In this paper, an advanced macro-block model accounting for frictional resistances is used to calculate the onset load factors for two classes of local mechanisms in multi-storey URSM buildings: the rocking-sliding and the flexure mechanisms. Based on the application of the kinematic approach of limit analysis, the presented formulations are an upgrade of the load factors identified within the FaMIVE (Failure Mechanism Identification and Vulnerability Evaluation) procedure existing in the literature and developed by the last author. These take into account a revisited evaluation of the in-plane frictional forces for the rocking-sliding mechanisms and the torsion-shear-flexure interactions for the horizontal flexure mechanisms. Moreover, the position of the hinge along the height of the building is identified more accurately, since it can be found at the story level or between two storeys, depending on the accounted mechanism. Other innovative issues concern upgrades of the former formulations for the vertical and horizontal flexure mechanisms. The final perspective of the presented abacus of local mechanisms in multi-storey URSM buildings is the next implementation of the proposed formulations in the FaMIVE procedure, after a sensitivity analysis of the main physical and geometrical parameters affecting the “hierarchy” among the all possible mechanisms. The identification of the most probable mechanisms, through a comprehensive but at the same time relatively rapid assessment, can be very useful for civil protection purposes.

ACS Style

Claudia Casapulla; Luca U. Argiento; Alessandra Maione; Elena Speranza. Upgraded formulations for the onset of local mechanisms in multi-storey masonry buildings using limit analysis. Structures 2021, 31, 380 -394.

AMA Style

Claudia Casapulla, Luca U. Argiento, Alessandra Maione, Elena Speranza. Upgraded formulations for the onset of local mechanisms in multi-storey masonry buildings using limit analysis. Structures. 2021; 31 ():380-394.

Chicago/Turabian Style

Claudia Casapulla; Luca U. Argiento; Alessandra Maione; Elena Speranza. 2021. "Upgraded formulations for the onset of local mechanisms in multi-storey masonry buildings using limit analysis." Structures 31, no. : 380-394.

Research article
Published: 13 December 2020 in International Journal of Architectural Heritage
Reads 0
Downloads 0

An atypical ‘baraccato’ system made of masonry walls encaged in iron frames was realized in the Ischia Island after the earthquake of 1883; an interesting example is represented by the Santa Maria Maddalena Church. Unfortunately, while several experimental and numerical studies can be found in the recent literature for traditional ‘baraccato’ systems (mixed timber and masonry elements), no information is available for iron-framed masonry structures. To fill this gap, the paper presents several parametric non-linear static analyses with reference to, firstly, simple iron-framed masonry panels and, successively, the façade of the Santa Maria Maddalena Church. All the numerical analyses were carried out by means of two modelling approaches with different levels of detail, i.e. finite element (FE) and discrete macro-element (DME) models. The numerical analyses allowed to: assess the reliability of the two models (FE and DME) into predicting similar results for the panels and the church façade with reference to both the unstrengthened and the iron-framed strengthened configurations; analyse the influence of the investigated parameters; evaluate the contribution of the iron frames on the overall behaviour of the strengthened masonry elements; and drive the choice of the most suitable modelling strategy for the whole church.

ACS Style

Luca Umberto Argiento; Thomas Celano; Francesca Ceroni; Claudia Casapulla. Modelling Strategies for the In-plane Behaviour of Iron-framed Masonry Structures: Parametric Analysis on Simple Panels and a Church Façade. International Journal of Architectural Heritage 2020, 1 -26.

AMA Style

Luca Umberto Argiento, Thomas Celano, Francesca Ceroni, Claudia Casapulla. Modelling Strategies for the In-plane Behaviour of Iron-framed Masonry Structures: Parametric Analysis on Simple Panels and a Church Façade. International Journal of Architectural Heritage. 2020; ():1-26.

Chicago/Turabian Style

Luca Umberto Argiento; Thomas Celano; Francesca Ceroni; Claudia Casapulla. 2020. "Modelling Strategies for the In-plane Behaviour of Iron-framed Masonry Structures: Parametric Analysis on Simple Panels and a Church Façade." International Journal of Architectural Heritage , no. : 1-26.

Journal article
Published: 18 August 2020 in Advances in Engineering Software
Reads 0
Downloads 0

This paper introduces a digital tool to quantify the structural feasibility of single layer assemblages of interlocking blocks. These have corrugated faces to keep the blocks together and prevent them from sliding through the frictional and shear resistances of the locks in two orthogonal directions. Calling the sliding constraint violation of an equilibrated model "sliding infeasibility", it is measured as a numerical value, named sliding infeasibility measure (SIM). The designer, instead of removing the infeasibility by trial and error, can adjust the assemblage geometric parameters to minimise the SIM. To this aim, first the structural soundness of an assemblage is investigated through the equilibrium analysis accounting for two sliding behaviours. This method is validated by comparing some thinnest feasible models with conventional blocks existing in the literature and the same models with interlocking blocks. Then, as the core of this paper, the equilibrium analysis is reformulated to develop an optimization problem aimed at quantifying and minimising the SIM. Rearranging the sliding constraints, the tool measures the tangential internal forces violating the sliding valid range as the SIM. Since more than one solution can exist for an equilibrated tensionless model with sliding infeasibility, this problem finds the solution for which the tangential forces are the closest to the valid sliding ranges. The method is validated by comparing the SIM to the structural soundness of assemblages with different interface geometric properties. Finally, the tool performance to design shells with arbitrary shapes is demonstrated through several examples.

ACS Style

Elham Mousavian; Claudia Casapulla. Quantifiable feasibility check of masonry assemblages composed of interlocking blocks. Advances in Engineering Software 2020, 149, 102898 .

AMA Style

Elham Mousavian, Claudia Casapulla. Quantifiable feasibility check of masonry assemblages composed of interlocking blocks. Advances in Engineering Software. 2020; 149 ():102898.

Chicago/Turabian Style

Elham Mousavian; Claudia Casapulla. 2020. "Quantifiable feasibility check of masonry assemblages composed of interlocking blocks." Advances in Engineering Software 149, no. : 102898.

Articles
Published: 18 May 2020 in International Journal of Architectural Heritage
Reads 0
Downloads 0

On August 21st 2017 an earthquake of magnitude Mw = 3.9 occurred in the Ischia Island (Italy), causing numerous damages to ordinary and monumental buildings and two casualties. Immediately after the earthquake, teams from the Universities of Napoli Federico II and ‘Parthenope’, carried out inspections on the churches of the island in two phases: the first was developed in the post-emergency and was mainly aimed to assess the overall damage and the usability checks through the A-DC form, issued by the Italian Ministry of Heritage and Cultural Activity and Tourism (MiBACT); the second phase was preparatory to the vulnerability assessment of each church, carried out by filling in the second level form, issued by the Italian Group for the Defence against Earthquakes (GNDT). Based on the available data, a database made of 27 churches was created to individuate the most representative typologies, to perform a territorial vulnerability assessment, to carry out a detailed analysis of the recorded damages and to construct damage probability matrices. Moreover, for a homogenous class of churches, a predictive formulation of the mean damage was assessed and compared with other formulations available in the literature. Finally, simplified methods for assessing the seismic safety of the inspected churches were applied to the database, in order to confirm the homogeneity of the Ischia churches in terms of seismic vulnerability.

ACS Style

Piera Salzano; Claudia Casapulla; Francesca Ceroni; Andrea Prota. Seismic Vulnerability and Simplified Safety Assessments of Masonry Churches in the Ischia Island (Italy) after the 2017 Earthquake. International Journal of Architectural Heritage 2020, 1 -27.

AMA Style

Piera Salzano, Claudia Casapulla, Francesca Ceroni, Andrea Prota. Seismic Vulnerability and Simplified Safety Assessments of Masonry Churches in the Ischia Island (Italy) after the 2017 Earthquake. International Journal of Architectural Heritage. 2020; ():1-27.

Chicago/Turabian Style

Piera Salzano; Claudia Casapulla; Francesca Ceroni; Andrea Prota. 2020. "Seismic Vulnerability and Simplified Safety Assessments of Masonry Churches in the Ischia Island (Italy) after the 2017 Earthquake." International Journal of Architectural Heritage , no. : 1-27.

Journal article
Published: 16 April 2020 in Journal of Computational Design and Engineering
Reads 0
Downloads 0

This paper presents a computational framework to design assemblages of interlocking blocks and to analyze their structural feasibility. The core of this framework is an extension of limit analysis to corrugated interfaces with orthotropic sliding behavior. Such block interfaces are made of a number of locks (i.e. projections on the corrugated faces, locking the blocks together) with rectangular cross section. The sliding resistance at the block interfaces is governed by the shear resistance of the locks and Coulomb’s friction law, normal to and along the locks, respectively. This resistance is assumed as a function of different interface geometric parameters and the stress state on an interface is represented by using a number of contact points distributed over the lock centerlines. The abstraction model has been validated through the comparison of the torsion–shear behavior of an interface obtained by the proposed model and experimental tests reported in the literature. The extended limit analysis has been implemented to model single-layer shells. When the model is infeasible, the geometry of the overall shell, blocks, and interlocking interfaces can be adjusted by the designer to make the model structurally feasible. The performance of the framework is presented through several examples, which demonstrate the relationships between the geometry of the interlocking interfaces and the stability of the assemblages.

ACS Style

Elham Mousavian; Claudia Casapulla. Structurally informed design of interlocking block assemblages using limit analysis. Journal of Computational Design and Engineering 2020, 7, 448 -468.

AMA Style

Elham Mousavian, Claudia Casapulla. Structurally informed design of interlocking block assemblages using limit analysis. Journal of Computational Design and Engineering. 2020; 7 (4):448-468.

Chicago/Turabian Style

Elham Mousavian; Claudia Casapulla. 2020. "Structurally informed design of interlocking block assemblages using limit analysis." Journal of Computational Design and Engineering 7, no. 4: 448-468.

Journal article
Published: 04 December 2019 in Frattura ed Integrità Strutturale
Reads 0
Downloads 0

A limit analysis method for masonry domes composed of interlocking blocks with non-isotropic sliding resistance is under development. This paper reports the first two steps of that work. It first introduces a revision to an existing limit analysis approach using the membrane theory to find the minimum thickness of a hemispherical dome under its own weight and composed of conventional blocks with finite isotropic friction. The coordinates of an initial axisymmetric membrane surface are the optimization variables. During the optimization, the membrane satisfies the equilibrium conditions and meets the sliding constraints where intersects the block interfaces. The results of the revised procedure are compared to those obtained by other approaches finding the thinnest dome. A heuristic method using convex contact model is then introduced to find the sliding resistance of the corrugated interlocking interfaces. Sliding of such interfaces is constrained by the Coulomb’s friction law and by the shear resistance of the locks keeping the blocks together along two orthogonal directions. The role of these two different sliding resistances is discussed and the heuristic method is applied to the revised limit analysis method.

ACS Style

Elham Mousavian; Claudia Casapulla. The role of different sliding resistances in limit analysis of hemispherical masonry domes. Frattura ed Integrità Strutturale 2019, 14, 336 -355.

AMA Style

Elham Mousavian, Claudia Casapulla. The role of different sliding resistances in limit analysis of hemispherical masonry domes. Frattura ed Integrità Strutturale. 2019; 14 (51):336-355.

Chicago/Turabian Style

Elham Mousavian; Claudia Casapulla. 2019. "The role of different sliding resistances in limit analysis of hemispherical masonry domes." Frattura ed Integrità Strutturale 14, no. 51: 336-355.

Journal article
Published: 23 October 2019 in International Journal of Structural Stability and Dynamics
Reads 0
Downloads 0

The corner failure is one of the most typical local mechanisms in masonry buildings vulnerable to earthquakes. The seismic assessment of this mechanism is poorly studied in the literature and in this paper it is addressed by means of both nonlinear static and dynamic analyses of rocking rigid blocks. The static approach is based on the displacement-based method and is aimed at predicting the onset of the 3D failure mechanism and its evolution through incremental kinematic analysis. This approach also considers the presence of a thrusting roof and the stabilizing contribution of frictional resistances exerted within interlocked walls. The capacity in terms of both forces and displacements is compared with the seismic demand through the construction of acceleration–displacement response spectra, with some originality. The nonlinear dynamic approach is based on the seminal Housner’s work on rocking rigid blocks and considers the influence of transverse walls, roof overloads and outward thrust, all included in an updated equation of one-sided motion. In particular, the process of defining an equivalent prismatic block, representative of the original corner geometry, is presented to convert the 3D dynamic problem into a 2D rocking motion. The wide suitability and advantage of such modeling approaches to assess the seismic response of rocking masonry structures with reference to specific limit states are demonstrated through a real case study, i.e. the collapse of a corner in a masonry school building during the 2016–2017 Central Italy seismic sequence. The compared results provide a good agreement of predictions in terms of both onset and overturning conditions, for which the static model appears to be more conservative than the dynamic one.

ACS Style

Claudia Casapulla; Linda Giresini; Luca Umberto Argiento; Alessandra Maione. Nonlinear Static and Dynamic Analysis of Rocking Masonry Corners Using Rigid Macro-Block Modeling. International Journal of Structural Stability and Dynamics 2019, 19, 1 .

AMA Style

Claudia Casapulla, Linda Giresini, Luca Umberto Argiento, Alessandra Maione. Nonlinear Static and Dynamic Analysis of Rocking Masonry Corners Using Rigid Macro-Block Modeling. International Journal of Structural Stability and Dynamics. 2019; 19 (11):1.

Chicago/Turabian Style

Claudia Casapulla; Linda Giresini; Luca Umberto Argiento; Alessandra Maione. 2019. "Nonlinear Static and Dynamic Analysis of Rocking Masonry Corners Using Rigid Macro-Block Modeling." International Journal of Structural Stability and Dynamics 19, no. 11: 1.

Review article
Published: 14 October 2019 in Bulletin of Earthquake Engineering
Reads 0
Downloads 0

The paper presents a detailed report on a large sample of masonry churches damaged by the 2016–2017 Central Italy seismic sequence. The first part of the work analyses the seismic sequence to give an overview of the occurred events in terms of both ground motion parameters and macro-seismic intensities. The surveyed data are organized into a database made, to date, of 990 cases, which represent almost one-fourth of the whole surveys performed during the emergency phase. Such a significant statistical sample was used to carry out a regional scale typological analysis in order to identify the most recurrent typologies of churches present in Central Italy. The analysis of the observed damage and usability outcomes allowed drawing some conclusions on the behaviour of the inspected churches under the 2016–2017 seismic sequence. The collected data were used to create damage probability matrixes for homogeneous classes of churches at different damage levels and, successively, to implement the corresponding fragility curves in terms of PGA.

ACS Style

Elvis Cescatti; Piera Salzano; Claudia Casapulla; Francesca Ceroni; Francesca Da Porto; Andrea Prota. Damages to masonry churches after 2016–2017 Central Italy seismic sequence and definition of fragility curves. Bulletin of Earthquake Engineering 2019, 18, 297 -329.

AMA Style

Elvis Cescatti, Piera Salzano, Claudia Casapulla, Francesca Ceroni, Francesca Da Porto, Andrea Prota. Damages to masonry churches after 2016–2017 Central Italy seismic sequence and definition of fragility curves. Bulletin of Earthquake Engineering. 2019; 18 (1):297-329.

Chicago/Turabian Style

Elvis Cescatti; Piera Salzano; Claudia Casapulla; Francesca Ceroni; Francesca Da Porto; Andrea Prota. 2019. "Damages to masonry churches after 2016–2017 Central Italy seismic sequence and definition of fragility curves." Bulletin of Earthquake Engineering 18, no. 1: 297-329.

Articles
Published: 08 October 2019 in International Journal of Architectural Heritage
Reads 0
Downloads 0

In this paper the seismic assessment of rocking masonry walls is evaluated through the displacement-based approach. In particular, a case study is selected to analyse the rocking failure mechanism of the façade of an ancient masonry church, damaged during the 2016–17 Central Italy seismic sequence. For this purpose, a non-linear kinematic analysis is developed to define the load factor at the activation of the failure mechanism and its evolution until collapse, at large displacements. An advanced macro-block model is adopted to take into account the stabilising contribution of frictional resistances exerted by the interlocked walls. The seismic input is described through acceleration-displacement response spectra (ADRS), provided both by seismic codes and selected real accelerograms, and the seismic analysis is addressed according to the capacity spectrum method (CSM), in the form incorporated into the latest Commentary to the Italian Technical Standard for Construction (CNTC19). The capacity is compared with the seismic demand through safety indexes, in terms of both forces and displacements, and the relevant influence of the frictional resistances on increasing the capacity is discussed. Incremental static analysis (ISA) curves are presented as another approach useful to highlight the relation between the peak ground acceleration (PGA) and the displacement demand.

ACS Style

Claudia Casapulla; Alessandra Maione; Luca Umberto Argiento. Performance-based Seismic Analysis of Rocking Masonry Façades Using Non-linear Kinematics with Frictional Resistances: A Case Study. International Journal of Architectural Heritage 2019, 1 -15.

AMA Style

Claudia Casapulla, Alessandra Maione, Luca Umberto Argiento. Performance-based Seismic Analysis of Rocking Masonry Façades Using Non-linear Kinematics with Frictional Resistances: A Case Study. International Journal of Architectural Heritage. 2019; ():1-15.

Chicago/Turabian Style

Claudia Casapulla; Alessandra Maione; Luca Umberto Argiento. 2019. "Performance-based Seismic Analysis of Rocking Masonry Façades Using Non-linear Kinematics with Frictional Resistances: A Case Study." International Journal of Architectural Heritage , no. : 1-15.

Journal article
Published: 04 June 2019 in Computers & Structures
Reads 0
Downloads 0

This work deals with a digital tool to design stable semi-circular masonry arches composed of interlocking blocks which are kept together by interlocking connectors on their faces. These blocks, comparing to conventional blocks, increase the sliding resistance and reduce the workmanship. However, current digital tools were developed mostly to design arches with conventional blocks. The proposed tool tries to fill this gap by addressing the work in three stages. First, a heuristic method is developed to define the relationships between the geometry of an interlocking face and the sliding resistance. Then, a structural analysis procedure is developed based on limit analysis and a heuristic method to define the stability condition of the arch. Finally, optimization algorithms are developed to find the thinnest arch by means of two minimization strategies dealing with the relationship between the sliding resistance of the blocks and the geometry of the interlocking faces, differently. The algorithms consider some control points on a given thrust line and automatically adjust them to minimize the thickness, while the stability condition checks the structural feasibility during the geometry adjustment. To evaluate the accuracy of the proposed heuristic method, the results obtained with FE analysis are used for comparison.

ACS Style

C. Casapulla; E. Mousavian; M. Zarghani. A digital tool to design structurally feasible semi-circular masonry arches composed of interlocking blocks. Computers & Structures 2019, 221, 111 -126.

AMA Style

C. Casapulla, E. Mousavian, M. Zarghani. A digital tool to design structurally feasible semi-circular masonry arches composed of interlocking blocks. Computers & Structures. 2019; 221 ():111-126.

Chicago/Turabian Style

C. Casapulla; E. Mousavian; M. Zarghani. 2019. "A digital tool to design structurally feasible semi-circular masonry arches composed of interlocking blocks." Computers & Structures 221, no. : 111-126.

Articles
Published: 16 October 2018 in International Journal of Architectural Heritage
Reads 0
Downloads 0

The failure mechanism of corners in masonry buildings has frequently been observed in seismic scenarios, but only a few works and no experimental investigations devoted to it are available in the literature. In this aritcle, the experimental behavior of a simple masonry corner is first analyzed, by simulating the seismic horizontal actions through a progressive tilting of the supporting base. Then, the conditions of the onset of two possible failure modes are analytically formulated: they are the rocking-sliding and the horizontal flexure mechanism. A three-dimensional macro-block model with frictional joints is used to analyze these mechanisms, while the crack patterns and the load factors are derived through the kinematic approach of the limit analysis. The evaluation of the in-plane frictional resistances involved by the rocking-sliding mechanism is performed by applying a reliable criterion previously proposed, while for the torsion strength involved in the horizontal flexure mechanism, simplified yield conditions are adopted and a possible criterion is also introduced to take into account the actual reduction of the contact surfaces. Last, the experimental findings are compared and critically interpreted in light of the analytical results and the influence of the main parameters on the prevailing mechanism is highlighted.

ACS Style

Claudia Casapulla; Alessandra Maione. Experimental and Analytical Investigation on the Corner Failure in Masonry Buildings: Interaction between Rocking-Sliding and Horizontal Flexure. International Journal of Architectural Heritage 2018, 14, 208 -220.

AMA Style

Claudia Casapulla, Alessandra Maione. Experimental and Analytical Investigation on the Corner Failure in Masonry Buildings: Interaction between Rocking-Sliding and Horizontal Flexure. International Journal of Architectural Heritage. 2018; 14 (2):208-220.

Chicago/Turabian Style

Claudia Casapulla; Alessandra Maione. 2018. "Experimental and Analytical Investigation on the Corner Failure in Masonry Buildings: Interaction between Rocking-Sliding and Horizontal Flexure." International Journal of Architectural Heritage 14, no. 2: 208-220.

Journal article
Published: 26 September 2018 in Frattura ed Integrità Strutturale
Reads 0
Downloads 0
ACS Style

Luca Umberto Argiento; Alessandra Maione; Claudia Casapulla. Formulating the in-plane frictional resistances and collapse mechanisms for multi-storey masonry block walls. Frattura ed Integrità Strutturale 2018, 12, 226 -239.

AMA Style

Luca Umberto Argiento, Alessandra Maione, Claudia Casapulla. Formulating the in-plane frictional resistances and collapse mechanisms for multi-storey masonry block walls. Frattura ed Integrità Strutturale. 2018; 12 (46):226-239.

Chicago/Turabian Style

Luca Umberto Argiento; Alessandra Maione; Claudia Casapulla. 2018. "Formulating the in-plane frictional resistances and collapse mechanisms for multi-storey masonry block walls." Frattura ed Integrità Strutturale 12, no. 46: 226-239.

Journal article
Published: 26 September 2018 in Frattura ed Integrità Strutturale
Reads 0
Downloads 0
ACS Style

Alessandra Maione; Luca Umberto Argiento; Claudia Casapulla; Andrea Prota. Management of multi-source information to identify the typology of the horizontal structures in historical masonry buildings: the case study of the Museum of Capodimonte in Naples (Italy). Frattura ed Integrità Strutturale 2018, 12, 240 -251.

AMA Style

Alessandra Maione, Luca Umberto Argiento, Claudia Casapulla, Andrea Prota. Management of multi-source information to identify the typology of the horizontal structures in historical masonry buildings: the case study of the Museum of Capodimonte in Naples (Italy). Frattura ed Integrità Strutturale. 2018; 12 (46):240-251.

Chicago/Turabian Style

Alessandra Maione; Luca Umberto Argiento; Claudia Casapulla; Andrea Prota. 2018. "Management of multi-source information to identify the typology of the horizontal structures in historical masonry buildings: the case study of the Museum of Capodimonte in Naples (Italy)." Frattura ed Integrità Strutturale 12, no. 46: 240-251.

Journal article
Published: 01 July 2018 in European Journal of Mechanics - A/Solids
Reads 0
Downloads 0
ACS Style

C. Casapulla; A. Maione; L.U. Argiento; Elena Speranza. Corner failure in masonry buildings: An updated macro-modeling approach with frictional resistances. European Journal of Mechanics - A/Solids 2018, 70, 213 -225.

AMA Style

C. Casapulla, A. Maione, L.U. Argiento, Elena Speranza. Corner failure in masonry buildings: An updated macro-modeling approach with frictional resistances. European Journal of Mechanics - A/Solids. 2018; 70 ():213-225.

Chicago/Turabian Style

C. Casapulla; A. Maione; L.U. Argiento; Elena Speranza. 2018. "Corner failure in masonry buildings: An updated macro-modeling approach with frictional resistances." European Journal of Mechanics - A/Solids 70, no. : 213-225.