Collapse analysis of slender masonry barrel vaults

Ramaglia, Giancarlo; Lignola, Gian Piero; Prota, Andrea

doi:10.1016/j.engstruct.2016.03.016

Cited by 46 publications

(18 citation statements)

References 27 publications

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“…It is evaluated as the ratio between the actual axial load, P and the axial capacity, Pu. Experimental tests performed on masonry structures [7,24] have shown that the axial load is much lower than the axial capacity of masonry. For this reason, the maximum value of the axial load has been fixed at the 30% of the maximum value.…”

Section: Numerical Resultsmentioning

confidence: 99%

“…Therefore, in the analysis of masonry buildings, also the nonlinear behavior must be assessed [22]. However, this threshold is very low so that in many applications, zero tensile strength is assumed [23,24].The tensile strength is usually lower than 10% of the compressive strength as experimentally observed [25]. Furthermore, many experimental tests [24] have shown the collapse of masonry structure to occur at very low axial load levels compared to the axial capacity.…”

Section: Mechanical Model Of Masonrymentioning

confidence: 99%

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Ductility Capacity Assessment of Masonry Members Strengthened With Composites

Ramaglia¹,

Fabbrocino²,

Lignola³

et al. 2019

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

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Models able to assess the effects of composite strengthening on masonry structures are worthy of further developments. This is also evident in modern design codes and guidelines where, for the masonry, there is lack of well-established approaches. In fact, most of the strengthening applications on masonry structures are designed based on suggestions by the manufacturers, missing strict and clear calculations. Such an approach leads, very often, to the execution of large and therefore economically demanding strengthening systems, also not encouraging their diffusion. Furthermore, the use of excessive strengthening often involves an excessive, and above all involuntary, reduction of ductility capacity. It needs also further investigation the impact of peculiar behaviors of composites (e.g. up to trilinear stress strain behavior for FRCM) on the flexural response of masonry. In this paper the behavior of strengthened masonry members is analyzed accounting for the variability of mechanical characteristics of both masonry and the strengthening systems. The behavior of the members is analyzed in terms of the moment-curvature relationships. This approach allows to evaluate both the flexural capacity and the ductility capacity of the strengthened masonry sections. In fact, the ductility is a key aspect in the retrofit of masonry structures. Finally, the process of adimensionalization, allows to extend the results to any case, providing a useful tool not only for verification but also for the design of interventions.

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Section: Numerical Resultsmentioning

confidence: 99%

Section: Mechanical Model Of Masonrymentioning

confidence: 99%

Ductility Capacity Assessment of Masonry Members Strengthened With Composites

Ramaglia¹,

Fabbrocino²,

Lignola³

et al. 2019

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

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show abstract

“…In the aspect of theoretical model establishment, existing research into the mechanics of various materials and structural mechanics have been mainly used as references, and an improved theory of mechanics or models have also been adopted as research support [1][2][3][4][5], the simulation analysis tools mainly used are finite element analysis (FEA) software such as ANSYS [6][7][8][9][10], 3Muri [11][12][13], ABAQUS [14,15], SATATS [16], BrickWORK [17], TREMURI [18], etc. ; from the aspect of experimental testing, earthquake response characteristics have usually been obtained by the shaking table test [19] and ambient vibration tests [20][21][22], the intensity index is mainly detected by the triaxial compression test [23]; from the aspect of data monitoring, data obtained by monitoring tend to be used for structural safety assessments and structural strength improvement [24][25][26][27]; at the time of studying earthquake damage mechanisms, there have been macroscopic assessments for architectural heritage for some materials or structures [28][29][30][31][32], and in-depth assessments on architectural heritage monomers [33][34][35].…”

Section: Introductionmentioning

confidence: 99%

A Seismic Capacity Evaluation Approach for Architectural Heritage Using Finite Element Analysis of Three-Dimensional Model: A Case Study of the Limestone Hall in the Ming Dynasty

Chen

Wang

et al. 2018

Remote Sensing

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A lot of architectural heritage in China are urgently in need to carry out seismic assessment for further conservation. In this paper, a seismic capacity evaluation approach for architectural heritage using finite element analysis with precision three-dimensional data was proposed. The Limestone Hall of Shaanxi Province was taken as an example. First, low attitude unmanned aerial vehicle photogrammetry and a close-range photogrammetry camera were used to collect multiple view images to obtain the precision three-dimensional current model of the Limestone. Second, the dimensions of internal structures of Limestone Hall are obtained by means of structural analysis; re-establishing the ideal model of Limestone Hall based on the modeling software. Third, a finite element analysis was conducted to find out the natural frequency and seismic stress in various conditions with the 3D model using ANSYS software. Finally, the seismic capacity analysis results were comprehensively evaluated for the risk assessment and simulation. The results showed that for architectural heritage with a multilayer structure, utilizing photogrammetric surveying and mapping, 3D software modeling, finite element software simulation, and seismic evaluation for simulation was feasible where the precision of the modeling and parameters determine the accuracy of the simulation. The precise degree of the three-dimensional model, the accurate degree of parameter measurement and estimation, the setting of component attributes in the finite element model and the strategy of finite element analysis have an important effect on the result of seismic assessment. The main body structure of the Limestone Hall could resist an VII-degree earthquake at most, and the ridge of the second floor could not resist a V-degree earthquake due to unsupported conditions. The maximum deformation of the Limestone Hall during the earthquake occurred in the tabia layer below the second roof.

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“…Heyman's work gave rise to numerous subsequent studies that assessed the main aspects affecting the structural response of masonry arches. In particular, recent studies have focused attention on the dynamic [2][3][4][5][6] and seismic behaviour [7][8][9][10][11][12][13][14][15][16][17][18][19][20] of existing masonry arch structures. One structural problem that has been rather neglected [21][22][23][24] in recent studies involves the behaviour of arches as a result of imposed settlement to the supports.…”

Section: Introductionmentioning

confidence: 99%

Structural behaviour of masonry arch with no-horizontal springing settlement

Zampieri

Simoncello

Pellegrino

2017

Frattura Ed Integrità Strutturale

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This paper presents a calculation procedure for assessing the structural integrity of a masonry arch with non-horizontal springing settlement. By applying the Principle of Virtual Work (PVW) to the deformed arch system, the procedure proposed herein details the reaction forces and thrust lines for each step of imposed settlement of the support. The procedure can also be used estimate the final displacement that causes complete failure of arch structural capacity. The results of the analysis procedure were compared against those obtained by experimental testing so as to validate the proposed calculation method.

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Collapse analysis of slender masonry barrel vaults

Cited by 46 publications

References 27 publications

Ductility Capacity Assessment of Masonry Members Strengthened With Composites

Ductility Capacity Assessment of Masonry Members Strengthened With Composites

A Seismic Capacity Evaluation Approach for Architectural Heritage Using Finite Element Analysis of Three-Dimensional Model: A Case Study of the Limestone Hall in the Ming Dynasty

Structural behaviour of masonry arch with no-horizontal springing settlement

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