Seismic evaluation of old masonry buildings. Part I: Method description and application to a case-study

Cardoso, Rafaela; Lopes, Mário; Bento, Rita

doi:10.1016/j.engstruct.2005.06.012

Cited by 85 publications

(41 citation statements)

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“…This treatment of masonry infills is in line with previous studies [3] and its main ramification is that it leads to lower stiffness during the elastic range of the response when all structural components are in some form of contact. As the lateral loading increases, and given the low efficiency of the metal joints, the infills gradually separate from the surrounding timber members and their contribution to the lateral load capacity becomes negligible.…”

Section: Introductionsupporting

confidence: 63%

“…However, there have been several studies using elastic models for the static and/or dynamic analysis of these structures. Some of them assume that diagonal timber elements are capable of 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 3 resisting bending moments [1,2], while others consider timber diagonals as axially loaded bars pinned at their ends [3,4], or a combination of these [5]. Elastic analysis is a useful tool for identifying regions with high stresses, but often fails to capture the final failure mechanism, that may be substantially affected by stress redistribution.…”

Section: Introductionmentioning

confidence: 99%

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Detailed and simplified non-linear models for timber-framed masonry structures

Kouris

Kappos

2012

Journal of Cultural Heritage

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This is the accepted version of the paper.This version of the publication may differ from the final published version. Permanent repository link AbstractThe need for improved methodologies to describe the post-elastic behaviour of existing structures in the framework of seismic vulnerability assessment has long been recognised. The study presented herein deals with the non-linear seismic response of timber-framed (T-F) masonry structures, such as those found in traditional edifices of cultural heritage. T-F masonry generally consists of masonry walls reinforced with timber elements, including horizontal and vertical elements, as well as X-type diagonal braces. Since the Bronze Age T-F buildings were common in regions where moderate to strong earthquakes were frequent. There is ample historical evidence that the embodiment of timber elements in masonry walls is closely related to earthquakes. The paper focuses on the description of the seismic response of T-F structures by means of a detailed analytical model. Although elastic analysis can adequately identify regions with high stresses, it fails to capture the redistribution of stresses and the ensuing failure mechanism. The simulation of T-F 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 *Manuscript

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Section: Introductionsupporting

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Detailed and simplified non-linear models for timber-framed masonry structures

Kouris

Kappos

2012

Journal of Cultural Heritage

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“…At this evaluation level, it was necessary to identify the possibility of suffering local mechanisms (mainly out-of-plane ones) that involve only defined portions of the entire structure, which, being not able to redistribute their seismic forces to the rest of the building [17] [18], cannot be accurately analyzed through a pushover analysis (Equivalent Frame method, EF).…”

Section: Rigid Macro-block (Rmb) Methodsmentioning

confidence: 99%

Seismic Assessment of a Monumental Masonry Construction: The Rocca Albornoziana of Spoleto

Castori

Borri

Corradi

et al. 2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…The linear elastic models can supply important results for the first global evaluation of traditional structures, particularly in what concerns the identification of critical regions, and also helps in the analysis of potential causes of observed structural damages (Cardoso 2002;Cardoso et al 2005).…”

Section: Definition Of the Finite Element Global Model And Materials Pmentioning

confidence: 99%

Evaluation of Strengthening Techniques of Traditional Masonry Buildings: Case Study of a Four-Building Aggregate

Vicente

Rodrigues

Varum

et al. 2011

J. Perform. Constr. Facil.

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Increasing appraisal of the durability, conservation state, and changeable use and function of old buildings in urban centers relies a great deal on the structural safety evaluation of vertical load capacity and the ability to resist horizontal forces. The need to assess seismic vulnerability, particularly of traditional masonry buildings, is a key issue. Evaluation of the seismic vulnerability of old buildings is essential in the definition of strengthening needs and minimization of damage from seismic actions in the safeguarding of built heritage. A threedimensional model was developed for an aggregate of four traditional masonry buildings located in the old city center of Coimbra, in Portugal. The finite element modeling of these buildings has aimed to identify structural fragility, understand the damages detected, and evaluate the global structural safety of these types of buildings. The primary results obtained in this case study helped to interpret the structural damage and stress distribution, and verified global stability and its consequences. Different strengthening techniques to improve the global behavior of these buildings were modeled and analyzed. A comparison of the efficiencies of strengthening strategies is also discussed.

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Seismic evaluation of old masonry buildings. Part I: Method description and application to a case-study

Cited by 85 publications

References 0 publications

Detailed and simplified non-linear models for timber-framed masonry structures

Detailed and simplified non-linear models for timber-framed masonry structures

Seismic Assessment of a Monumental Masonry Construction: The Rocca Albornoziana of Spoleto

Evaluation of Strengthening Techniques of Traditional Masonry Buildings: Case Study of a Four-Building Aggregate

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