Relevant bibliographies by topics / Textile strengthened barrel vault

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Academic literature on the topic 'Textile strengthened barrel vault'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

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Journal articles on the topic "Textile strengthened barrel vault"

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Ramaglia, Giancarlo, Gian Piero Lignola, Francesco Fabbrocino, and Andrea Prota. "Numerical Modelling of Masonry Barrel Vaults Reinforced with Textile Reinforced Mortars." Key Engineering Materials 747 (July 2017): 11–19. http://dx.doi.org/10.4028/www.scientific.net/kem.747.11.

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Among masonry buildings characterized by a complex architecture, a significant portion is represented by heritage buildings. A significant seismic vulnerability is due to the presence of thrusting elements like as arches and vaults. Their ultimate capacity can be improved by means of several strengthening techniques. However the advantages of using Textile Reinforced Mortars (TRM) are well highlighted in the scientific literature.The present work focuses on ultimate behaviour of masonry barrel vaults, in the framework of incremental analysis, including the strengthening effect. The analytical model is compared in terms of ultimate capacity and failure mode with a full scale masonry barrel vault dynamically tested. After the first tests, the vault has been strengthened with Textile Reinforced Mortar (TRM) and tested again.
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Bove, Martino, Anna Castellano, Aguinaldo Fraddosio, Jacopo Scacco, Gabriele Milani, and Mario Daniele Piccioni. "Experimental and Numerical Analysis of FRCM Strengthened Parabolic Tuff Barrel Vault." Key Engineering Materials 817 (August 2019): 213–20. http://dx.doi.org/10.4028/www.scientific.net/kem.817.213.

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This work focuses on an experimental and numerical study of a tuff barrel vault first damaged by differential vertical settlements of the abutments without rotations, then reinforced with a FRCM system composed by a fiber-reinforced mortar embedding a basalt fiber net, and finally subjected to a concentrated load on a generatrix (still ongoing). The geometry of the vault (polycentric near parabolic shape) and the masonry material (Apulian tuff) have been chosen in order to be representative of some masonry vaults common in rural constructions of Apulia region; also, a load representative of the infill weight has been applied during all the experimental tests. In parallel to the experiments, numerical simulations by a heterogeneous FE Abaqus model calibrated on the experimentally determined mechanical properties of materials have been performed. This model aims at reproducing the settlement phase and to accurately predict the load bearing capacity of the reinforced structure. To this aim, Concrete Damage Plasticity model has been used for modeling mortar joints and cementitious matrix, whereas tuff bricks have been assumed linearly elastic; finally, the basalt fiber net used in the FRCM reinforced has been described by suitable equivalent elasto-damaging trusses.
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Sharei, E., A. Scholzen, J. Hegger, and R. Chudoba. "Structural behavior of a lightweight, textile-reinforced concrete barrel vault shell." Composite Structures 171 (July 2017): 505–14. http://dx.doi.org/10.1016/j.compstruct.2017.03.069.

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Hojdys, Łukasz, and Piotr Krajewski. "Experimental Tests on Strengthened Masonry Vaults." Applied Mechanics and Materials 578-579 (July 2014): 1396–99. http://dx.doi.org/10.4028/www.scientific.net/amm.578-579.1396.

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This paper reports and discusses the results of experiments performed on masonry barrel vaults strengthened externally with a composite material. The vaults characterized by 125-mm thickness, 2000-mm internal span and 730-mm rise, were built of solid clay bricks and lime mortar. As a strengthening glass fiber grids or carbon fiber grids were used. They were embedded in a polymer-cement mortar at the vaults extrados. The main aim of presented research was to determine load-carrying capacity and examine failure modes of tested specimens. The results of performed tests show that observed failure modes depended on reinforcement ratio of strengthening layer. The specimen strengthened with one layer of glass fiber grid failed due to fibers rupture, whereas the vault strengthened with carbon fiber grid failed due to sliding along a mortar joint just above the abutment.
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Gattesco, Natalino, Ingrid Boem, Alessandra Gubana, Davide Menegon, Norman Bello, and Allen Dudine. "Experimental Behavior of Masonry Vaults Strengthened with Thin Extradoxal or Intradoxal Layer of Fiber Reinforced Lime Mortar." Key Engineering Materials 747 (July 2017): 274–81. http://dx.doi.org/10.4028/www.scientific.net/kem.747.274.

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The results of a first experimental research program on masonry vaults strengthened by means of GFRP meshes embedded in a thin layer of lime mortar, are herein presented. The tests were designed to reproduce the pattern of a transversal horizontal load proportional to the vault self-weight. The typical simplified loading patterns generally used for the experimental tests concern concentrated vertical loads at the crown section or at 1/4 of the span, but some numerical investigations evidenced that these configurations are not able to reproduce the actual behavior and the effectiveness of the reinforcement. So a specific rig was designed to apply the horizontal load pattern.Solid brick masonry barrel vaults were considered (thickness 120 mm, arch span 4000 mm, arch rise/radius = 0.75). Three quasi-static cyclic tests were performed: the first concerned an unreinforced vault, the second a vault reinforced at the extrados through the application of a mortar coating reinforced with a GFRP mesh and the third reinforced at the intrados surface with the same technique. The experimental results demonstrated the technique effectiveness and the important increment of ductility of the vaults.
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Mirzaaghazadeh, K., K. Abedi, and B. Shekastehband. "Collapse Behavior of Tensegrity Barrel-Vault Structures Based on Di-Pyramid (DP) Units." International Journal of Structural Stability and Dynamics 20, no. 11 (October 2020): 2050119. http://dx.doi.org/10.1142/s0219455420501199.

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In this study, the collapse behavior of a family of tensegrity structures, i.e. di-pyramid (DP) barrel-vaults that can offer promising solutions for civil engineering applications is analyzed. Depending on whether struts’ snap or cables’ rupture dictate the occurrence of overall collapse, two different designs are considered. The effects of geometric parameters, self-stress properties, loading type, boundary conditions and strengthening schemes on the structural behavior are discussed. It is found that the structures with symmetric and ridge loading types undergo bifurcation type instability instead of limit point which is encountered in the cases with asymmetric loading type. Constraint against lateral thrust is beneficial in improving strength and initial stiffness of the studied cases, by as much as 60% and 90%, respectively. In most cases, the rate of strength variation associated with increasing self-stress levels is quite slow, while the slackness load increases by at least 400% being the primary achievements. By using non-uniform self-stress distribution, the initial stiffness of these structures can be increased up to 240%. Increasing the rise-to-span ratio improves the initial stiffness and collapse strength of the structure significantly at the expense of expedition of cables slackness. Significant gains in collapse resistance of these structures under symmetric loading are obtained with strengthened critical struts or cables, depending on which collapse case dominates, but the initial stiffness is generally not influenced by these schemes.
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de Santis, Stefano, Francesca Roscini, and Gianmarco de Felice. "Retrofitting Masonry Vaults with Basalt Textile Reinforced Mortar." Key Engineering Materials 747 (July 2017): 250–57. http://dx.doi.org/10.4028/www.scientific.net/kem.747.250.

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Due to their slenderness, masonry vaults are particularly vulnerable against unsymmetrical service loads, support displacements and seismic actions. Retrofitting works are therefore needed in numerous existing structures to ensure an adequate safety level according to current standard codes. This paper describes an experimental investigation carried out in the laboratory on two full-scale vault mock-ups. One of them was tested unreinforced, while the other one was strengthened with a basalt mesh applied at the extrados with lime-based mortar. Aiming at reproducing the actual condition of brick vaults in historic constructions, the specimens were provided with buttresses and filling. The load was applied over the filling at 1/3 of the span and increased cyclically up to failure. The tests provided the increase in load-carrying capacity attained with the basalt TRM reinforcement and the modification of the associated failure mode.
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Anania, Laura, Antonio Badalà, and Giuseppe D’agata. "Seismic retrofitting of masonry vault using CFRP." Alternativas 17, no. 3 (February 1, 2017): 15–23. http://dx.doi.org/10.23878/alternativas.v17i3.208.

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Masonry vaults represent one of the most seismic vulnerable element in an ancient building. It also generally does not possess an adequate capability of redistribution of the seismic action among the walls of the buildings. In this paper, the structural behaviour of a masonry barrel vault strengthened by a new technology in applying Carbon Fiber Reinforced Polymer (C-FRP) is discussed from both theoretical and experimental point of view. The C-FRP is applied such as to assume an Ω shape around a concrete core realized at the vault extrados. This arrangement allows the resulting CFRP reinforced ribbed vault to assume the necessary strength and membranal and flexural rigidity so as to ensure the aforementioned seismic action redistribution capability and to avoid local collapse of the vault. A theoretical prediction of ultimate strength was derived in agreement with the occurrences observed during the experiments (masonry crushing, FRP rupture, debonding, sliding along the mortar joint). To this aim, a novel incremental step-by-step lower bound limit analysis approach was developed taking into account for the shear failure mechanism at each mortar joint. The shear strength is evaluated by the Mohr-Coulomb friction law for the mortar joint and by other nonlinear Italian Code relations for CFRP Ω-Wrap reinforcement. In the approximated incremental analysis process the current value of the shear strength, depend on the compressive stress resulting from the previous step.
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Gattulli, Vincenzo, Francesco Potenza, Jessica Toti, Filippo Valvona, and Giancarlo Marcari. "Ecosmart Reinforcement for a Masonry Polycentric Pavilion Vault." Open Construction and Building Technology Journal 10, no. 1 (May 31, 2016): 259–73. http://dx.doi.org/10.2174/1874836801610010259.

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In the cultural life of modern societies great importance has acquired the preservation of existing and, in particular, ancient architectural heritage. With the inherent historical aspects, the economic implications have to be taken into account as well. Indeed, especially European cities and countries receive significant economic advantages by the existence of monuments and ancient suburbs. In this context, structural maintenance, strengthening and monitoring has gained an important academic and professional impulse. The present paper aims to present the results of a real scale experimental work regarding the application of an innovative seismic retrofitting technique for masonry walls and vaults by Hydraulic Lime Mortar strengthened by Glass Fiber Reinforced Polymer textile grids (HLM-GFRP) embedding new sensing systems as fiber optical sensors. The real scale specimen is a masonry polycentric pavilion vault that was damaged during the L’Aquila earthquake of April 2009. The need of eco compatibility of bonding material with masonry support implies the use of HLM-GFRP as strengthening system. On the other hand, the use of Fiber Bragg Grating (FBG) has a large number of advantages in opposite to electrical measuring methods. Example are: small sensor dimensions, low weight as well as high static and dynamic resolution of measured values, distributed sensing feature allowing to detect anomalies in load transfer between reinforcement and substrate and the location of eventual cracking patterns. A suitable Finite Element (FE) model is developed both to assess the effectiveness of the HLM-GFRP strengthening layers in retrofitting of the masonry vault and to define the strain field essential to the design of the FBG sensors network.
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10

Sun, Guojun, Mingze Wu, Zhihua Chen, and Suduo Xue. "Numerical and Experimental Investigation of the Mechanical Behavior of Cable-Supported Barrel Vault Structures with Varying Temperature." Advances in Civil Engineering 2019 (June 10, 2019): 1–16. http://dx.doi.org/10.1155/2019/4572196.

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The cable-supported barrel vault (CSBV) structure system is a new type of hybrid spatial steel structure based on a beam string structure (or truss string structure), suspendomes, and cylindrical lattice shells. Steel cables (e.g., steel wire rope cables, steel strand cables, semiparallel steel tendons, and steel rods) are key components of CSBV structures. However, they have different elastic moduli and thermal expansion coefficients. In this study, the roof of a textile workshop (the first CSBV structure in China) was analyzed with four types of cables under the effect of varying temperature. Under half-span loading and full-span loading, the structural internal force and displacement at varying temperatures were obtained from finite element models employing four different types of steel cables. The internal force, displacement, and horizontal arch thrust changed linearly with increasing temperature. Moreover, the dynamic characteristics of CSBV with varying temperature were analyzed. The frequency of the CSBV changed linearly with increasing temperature. Based on the dynamic characteristics of CSBV with varying temperature, a seismic response time-history analysis was performed. The variation in the maximum responses of the internal force, displacement, and horizontal arch thrust was obtained. In each case, the mechanical behavior of the CSBV with semiparallel steel tendon cables was strongly affected by the temperature. Therefore, semiparallel steel tendons are not recommended as components of CSBV in cases where large temperature changes can be expected. Thereafter, a scale model of a CSBV was designed and used for experiments and corresponding finite element analyses under varying temperature. Experimental results show that the finite element method is effective for analyzing the mechanical behavior of CSBV under varying temperature.
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Dissertations / Theses on the topic "Textile strengthened barrel vault"

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Steinigen, Frank, Wolfgang Graf, Andreas Hoffmann, and Michael Kaliske. "Nachträglich textilverstärkte Stahlbetontragwerke — Strukturanalyse mit unscharfen Daten." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1244047124333-78222.

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Mit der Fuzzy-Stochastischen Finite-Elemente-Methode (FSFEM) kann die nachgewiesene stochastische und nichtstochastische Datenunschärfe des stahlbewehrten Altbetons und des Textilbeton bei der Strukturanalyse berücksichtigt werden. Die für die deterministische Analyse textilverstärkter Tragwerke auf der Basis des Multi-Referenzebenen-Modells (MRM) entwickelten finiten MRM-Elemente wurden zu FSMRM-Elementen weiterentwickelt. Das Stoffmodell des mit AR-Glas bewehrten Feinbetons wurde für textile Gelege aus Carbon erweitert. Die entwickelten Modelle und Algorithmen werden zur fuzzystochastischen Tragwerksanalyse textilverstärkter Tragwerke eingesetzt.
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Conference papers on the topic "Textile strengthened barrel vault"

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Di Primio, Alice, Noemi Fiorini, Daniele Spina, Claudio Valente, and Marcello Vasta. "MONITORING OF A STRENGTHENED BARREL VAULT." In 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering Methods in Structural Dynamics and Earthquake Engineering. Athens: Institute of Structural Analysis and Antiseismic Research School of Civil Engineering National Technical University of Athens (NTUA) Greece, 2019. http://dx.doi.org/10.7712/120119.7038.19124.

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