Seismic behavior and vulnerability of church roof structures

Parisi, Maria Adelaide Vittoria; Tardini, Chiara; Maritato, Elena

doi:10.1201/9781315616995-214

Cited by 4 publications

(3 citation statements)

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“…Often, the connection between trusses is simpler, with purlins and a ridge plate as in figure 3, sometimes with the addition of transversal struts, or diagonal bracings (Parisi et al 2016). The most common situation presents two purlins per rafter, which may give satisfactory results if purlins and rafter are well connected: it would be graded up to A in the best conditions.…”

Section: The Layoutmentioning

confidence: 99%

Seismic vulnerability assessment of timber roof structures: criteria and procedures

Parisi

Tardini

2021

Proceedings of the Institution of Civil Engineers - Structures

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Timber roof structures have a strong influence on the behaviour of masonry buildings during earthquakes. In a seismic event, they may link walls and favour the development of a positive global response or they may suffer damage that can extend to masonry elements. From the perspective of risk mitigation, basic criteria and procedures for assessing the seismic vulnerability of timber roof structures are needed. After extended research, the main factors determining seismic vulnerability in such structures were identified. The steps of an assessment procedure developed within the research programme are discussed in this paper. The procedure comprises initial visual inspection for collecting data and information on the main parameters that are significant in seismic conditions, and their subsequent classification according to a grading system. Structural criticalities are thus identified, which may possibly be reduced. In the applications and case studies performed so far, the procedure has proven useful for focusing attention on the seismic qualification of timber structures that were originally conceived with regard to vertical loads.

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Section: The Layoutmentioning

confidence: 99%

Seismic vulnerability assessment of timber roof structures: criteria and procedures

Parisi

Tardini

2021

Proceedings of the Institution of Civil Engineers - Structures

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“…However, this built heritage is subjected to significant risk due to earthquakes. During most of the major earthquakes in recent history in Italy, churches suffered damage and even partial or complete collapse [1,2,3]. Thus, it is desireable to prevent the structural failure of churches to avoid significant losses in terms of cultural heritage, reparation costs, and human lives.…”

Section: Introductionmentioning

confidence: 99%

Seismic risk assessment and intervention prioritization for Italian medieval churches

Pirchio

Walsh

Kerr

et al. 2021

Journal of Building Engineering

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“…Still in recent years studies performed after seismic events showed that roof structures can enhance the effects of the seismic loads triggering the out of plane failure of exterior walls (Parisi et al 2008;Parisi et al 2012;Parisi and Chesi 2014;Giresini et al 2016;Parisi et al 2016). On the other hand, studies also show that the use of timber elements connected to masonry walls can reduce the effect of the seismic loads (Touliatos 1993;Touliatos 2005;Tonna and Chesi 2015).…”

Section: Introductionmentioning

confidence: 99%

Influence of historic roof structures on the seismic behaviour of masonry structures

Keller

Parisi

Tsakanika

et al. 2021

Proceedings of the Institution of Civil Engineers - Structures

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Historic buildings are complex structures in which all the composing elements work together. Studies of heritage structures after seismic events have shown that timber roof structures strongly influence the seismic response of masonry structures, being able to reduce or enhance the out-of-plane displacement of the structure. Starting from these observations, three different types of roof structures, from the eighteenth, nineteenth and twentieth centuries, were introduced in the finite-element simulation software SCIA Engineer. The roof structures were subsequently placed on the same eighteenth-century masonry building with a ground floor and two upper floors, respecting its geometric features. Simulations were performed considering successively rigid, hinged or sliding connections between the roof and the masonry structure. At the same time, the traditionally crafted joints of the roof structures were consecutively modelled as hinged, rigid and semi-rigid (determined using three different methods). Ultimately, the top horizontal displacement, inter-storey drift and damage level of the masonry structure were compared. The main aims of this study were to observe if roof structures have an influence on the seismic behaviour of masonry buildings and to determine if selected parameters suffer any changes depending on the roof structure type, the roof–wall connections and joints’ axial stiffness.

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Seismic behavior and vulnerability of church roof structures

Cited by 4 publications

References 0 publications

Seismic vulnerability assessment of timber roof structures: criteria and procedures

Seismic vulnerability assessment of timber roof structures: criteria and procedures

Seismic risk assessment and intervention prioritization for Italian medieval churches

Influence of historic roof structures on the seismic behaviour of masonry structures

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