The roof of the Church of the Nativity in Bethlehem: Structural problems and intervention techniques

Alessandri, Claudio; Mallardo, Vincenzo; Pizzo, Benedetto; Ruocco, Eugenio

doi:10.1016/j.culher.2012.10.013

Cited by 15 publications

(11 citation statements)

References 12 publications

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“…The assessment and intervention on common timber structures is often based on visual inspection of the structure and consequent elaboration of damage maps or datasheets that indicate the segments or regions of the structure that are of higher structural concern and in need of intervention (Macchioni et al, 2012;Alessandri et al, 2012;Lourenço et al, 2013).…”

Section: Present Methodology For Assessmentmentioning

confidence: 99%

A Holistic Methodology for Probabilistic Safety Assessment of Timber Elements Combining Onsite and Laboratory Data

Sousa

Branco

Lourenço

2015

International Journal of Architectural Heritage

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The assessment of existing timber structures comprises several fields of knowledge, each one providing its own piece of information aiming at an effective answer. Even if general guidelines are available, there is still a need for a holistic approach that is able to combine information from different sources and infer upon that information allowing also, in that process, for an updating scheme aiming at a more substantiated decision process. In that scope, this work proposes a methodology for a holistic assessment of timber elements. The methodology combines information gathered in different scales and follows a probabilistic framework that allows for the structural assessment of existing timber elements with possibility of inference and updating of the mechanical properties of the elements, through Bayesian methods. The described methodology is based in four main steps: (i) scale of information; (ii) local and global data; (iii) probability assignment; and (iv) long term structural analysis. After the description of the methodology, its limitations and possible future modifications are discussed.

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Section: Present Methodology For Assessmentmentioning

confidence: 99%

A Holistic Methodology for Probabilistic Safety Assessment of Timber Elements Combining Onsite and Laboratory Data

Sousa

Branco

Lourenço

2015

International Journal of Architectural Heritage

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“…The results obtained allowed first of all to supply, as requested, the information necessary for the design of the structural restoration [17]. In fact, the causes that led to the biological degradation of the wood have been identified, in order to remedy it before restoration and during the restoration.…”

Section: Global Journal Of Archaeology and Anthropologymentioning

confidence: 99%

Identifying the Wood of Historic Artefacts: Basic Information or Simply a Curiosity?

Macchioni

2018

GJAA

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Section: Use Of Stainless Steel Rodsmentioning

confidence: 99%

“…The rods are typically made of fiberglass, carbon FRP or stainless steel (Figures 14 and 15). Pouring or injection resins are used to fix the rods into the prostheses and the pre-existing beam [45][46][47][48]. From a practical viewpoint, these are difficult repairs to carry out on site, requiring overhead cutting of the slot by multiple drillings or chain-morticer/chain-saw cutting.…”

Section: Use Of Stainless Steel Rodsmentioning

confidence: 99%

Repair and Reinforcement of Historic Timber Structures with Stainless Steel—A Review

Corradi

Osofero

Borri

2019

Metals

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Recent trends in the use of stainless steel profiles for repair and reinforcement of historic timber structures, after degradation due to biotic and non-biotic attacks, are discussed in this paper. These structural challenges can vary from inadequate load carrying capacity to complexities involved with choice of repair materials and techniques. Given the recurring requirements of conservation authorities in terms of reversibility of interventions and compatibility between historic and new materials, an increase in the use of non-invasive reinforcement materials and reversible techniques was observed. Subsequently, engineers and researchers have increasingly employed stainless steel alloys in retrofitting historic timber structures. This paper therefore presents the state of the art in the use of stainless steel profiles in retrofitting timber structural elements within historic structures. It includes a review of the development of the retrofitting methods and existing experimental studies on the mechanical behavior of timber structures reinforced with stainless steel. Finally, it presents a number of case studies and draws conclusions on current trends and practices based on reported studies.

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The roof of the Church of the Nativity in Bethlehem: Structural problems and intervention techniques

Cited by 15 publications

References 12 publications

A Holistic Methodology for Probabilistic Safety Assessment of Timber Elements Combining Onsite and Laboratory Data

A Holistic Methodology for Probabilistic Safety Assessment of Timber Elements Combining Onsite and Laboratory Data

Identifying the Wood of Historic Artefacts: Basic Information or Simply a Curiosity?

Repair and Reinforcement of Historic Timber Structures with Stainless Steel—A Review

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