Effect of Shape Uncertainties on the Collapse Condition of the Circular Masonry Arch

Cavalagli, Nicola; Gusella, Vittorio; Liberotti, Riccardo

doi:10.1007/978-3-030-50460-1_27

Cited by 8 publications

(2 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition it should be noted that, when composed by several parts for the construction of large structures, the centrings were always built up in situ, resulting in unavoidable geometrical distortions from the nominal geometry, provided by wooden imperfections and manpower activities. The structural influence of such aspect has been addressed within previous contributions [ [27], [28]]. The number of the arc sectors which constitute a centring are related to the vernacular building work traditions, the historical period and, above all, of the geometry and dimension supposed for the masonry arch.…”

Section: Definition Of a Masonry Arch With Irregular Shapementioning

confidence: 99%

Minimum Thickness and Collapse Conditions of the Irregular Masonry Arch Subject to its Own Weigth

Cavalagli¹,

Gusella²,

Liberotti³

2021

12th International Conference on Structural Analysis of Historical Constructions

View full text Add to dashboard Cite

The present paper aims at assessing the shape irregularities influence on the collapse conditions of masonry arches subjected to vertical point force. Surveys campaigns on cultural Heritage buildings often reveal masonry elements with irregular shapes. In order to accurately predict their actual behavior the presence of such features cannot be neglected. The reasons for these non-canonical shapes are manifold e.g. the evolution of degradation processes and the constructive laws. As a first analysis attempt, the geometrical uncertainties tied to the building work criteria are taken into account. A random parametric model is proposed to generate two-dimensional geometry of irregular polycentric arches. Monte Carlo simulations allows estimating the probabilistic density function of the collapse load multiplier evaluated by means of the implemented limit analysis method. The outcomes referred to the masonry arch with nominal geometry are compared to those obtained for the random polycentric arch, highlighting the extent of the load-bearing capacity reduction due to presence of such shape irregularities.

show abstract

Section: Definition Of a Masonry Arch With Irregular Shapementioning

confidence: 99%

Minimum Thickness and Collapse Conditions of the Irregular Masonry Arch Subject to its Own Weigth

Cavalagli¹,

Gusella²,

Liberotti³

2021

12th International Conference on Structural Analysis of Historical Constructions

View full text Add to dashboard Cite

show abstract

“…Furthermore, to reinterpret the traditional construction techniques (e.g., the reinforced plaster) within new increasingly circular processes of construction, materials with natural origin are chosen for the two phases of the composite under investigation: basaltic fibers that are embedded in the matrix phase made of lime inorganic mortar. The project was preceded by an in-depth analytical study conducted with respect to the state of the art and taking into account industry procedures, regulations, guidelines and scientific findings produced by numerous authors and research institutions [1,[10][11][12][13][14][15]. In particular, several authors have dealt with the complex issue of composite materials, their structural behavior and their consequent modeling.…”

Section: Introductionmentioning

confidence: 99%

Natural FRCM and Heritage Buildings: Experimental Approach to Innovative Interventions on “Wall Beams”

et al. 2022

View full text Add to dashboard Cite

In this paper, an innovative strengthening system for masonry walls made of externally bonded Fabric-Reinforced Cementitious Matrix (FRCM) is presented. Due to the good mechanical properties and the compatibility with the architectural heritage, the FRCM is an adequate alternative to the use of Fiber-Reinforced Polymer (FRP) composites and other traditional techniques. The proposed system is applied to the strengthening of a classical architectural typology in cultural heritage architecture, which is the “in falso” masonry: a load-bearing wall built over a masonry vault, and hence without a direct load path to the ground. A research program, characterized by an experimental campaign, has been started in order to devise and verify an optimal strengthening system that assures for the masonry wall a structural behavior similar to a “wall beam”, so to prevent progressive collapses when the underlying masonry vault loses its carrier function. In particular, rather than the canonical application, consisting in widespread application to the whole surface of the masonry wall, an innovative intervention made of “Green Tape” of composites has been designed and verified by a specifically designed experimental set-up. The main objective of the research is to propose a reinforcement strategy not detrimental to unmovable artistic assets and tied to the safety and robustness of the architectural heritage.

show abstract

A novel hemp-fiber bio-composite material for strengthening of arched structures: Experimental investigation

Gioffré

Vincenzini

Cavalagli

et al. 2021

Construction and Building Materials

View full text Add to dashboard Cite

Effect of Shape Uncertainties on the Collapse Condition of the Circular Masonry Arch

Cited by 8 publications

References 20 publications

Minimum Thickness and Collapse Conditions of the Irregular Masonry Arch Subject to its Own Weigth

Minimum Thickness and Collapse Conditions of the Irregular Masonry Arch Subject to its Own Weigth

Natural FRCM and Heritage Buildings: Experimental Approach to Innovative Interventions on “Wall Beams”

A novel hemp-fiber bio-composite material for strengthening of arched structures: Experimental investigation

Contact Info

Product

Resources

About