Influential aspects on seismic performance of  confined masonry construction

Chourasia, Ajay; Bhattacharyya, S. K.; Bhargava, Pradeep; Bhandari, N. M.

doi:10.4236/ns.2013.58a1007

Cited by 7 publications

(4 citation statements)

References 4 publications

(9 reference statements)

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“…The DARR method relies heavily on the choice of the relative displacement or interstory drift limits used for the damage assessment. Currently, the literature provides both interstory drift (e.g., Borzi et al, 2008;Shahzada et al, 2011;Chourasia et al, 2016;Minas and Galasso, 2019) and relative displacement limits (e.g., Lagomarsino and Giovinazzi, 2006;Frankie et al, 2013;Lestuzzi et al, 2016). Each set of limit values is derived based on different assumptions and for specific building typologies and study areas, and their use and validity depends on the typology dynamic behavior.…”

Section: Discussionmentioning

confidence: 99%

Applying the damage assessment for rapid response approach to the august 24 M6 event of the seismic sequence in central Italy (2016)

2022

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Seismic monitoring networks are increasingly being used in urban areas to record and locate earthquakes. Recordings in the proximity of buildings also allow assessing, as a first approximation, the expected building damage. The DARR (Damage Assessment for Rapid Response) method provides local-scale information on expected damage patterns. The potential of this approach is discussed here for the August 24 M6 event of the Central Italy seismic sequence (2016–2017). We focus only on the first event of the sequence because cumulative damage is outside the scope of this study. The earthquake recordings are available from two Italian monitoring networks: the Italian Accelerometric Archive (ITACA) and the OSS (Osservatorio Sismico delle Strutture), which collects data from monitored buildings and bridges in Italy. We selected four target areas (Amatrice, Norcia, Visso and Sulmona) characterized by different epicentral distances and building typologies, that suffered different levels of damage during the M6 event on 24 August 2016. Using recordings either in the free field or in the basement of buildings, the expected relative displacement of building typologies common in the studied areas is calculated with the DARR method. Using predefined damage thresholds from literature, the obtained results allow quantifying the expected damage for dominant building typologies in the surroundings of the recording sites. We investigate and discuss the potential use and applicability of the DARR method in different areas depending on the epicentral distance and building characteristics. The results indicate that the DARR approach is useful for supporting and improving rapid response activities after a seismic event.

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Section: Discussionmentioning

confidence: 99%

Applying the damage assessment for rapid response approach to the august 24 M6 event of the seismic sequence in central Italy (2016)

2022

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“…Further, the load-deformation behaviour depends on various factors, such as wall aspect ratio, material strength, type of wall-to-tie-column interface, detailing of tie-columns, wall openings and overburden pressure. [19][20][21][22][23][24][25][26][27].…”

Section: Review Of Past Literaturementioning

confidence: 99%

Sustainable housing using confined masonry buildings

2019

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Much of India is prone to substantial earthquakes, and vulnerability associated with both unreinforced masonry (URM) and improperly built reinforced concrete (RC) frame constructions has been unmasked by past earthquakes. URM structures present a severe hazard in earthquake-prone regions. And non-engineered RC structures can lead to devastating consequences. Housing for families in the economically weaker sector and the lower-income group is undoubtedly challenging to such events. Regardless of residing in a city or village, everyone desires a house with masonry walls and RC roof, just like the buildings in larger urban areas. Confined masonry (CM) construction, which is a popular building system in many countries, can fulfil this need of society. Though CM building started informally, the seismic performance is found to be really well in several destructive earthquakes. This type of construction combines the advantages of URM and RC structures and does not need sophistication required in RC construction. In this paper, the seismic response of URM, infilled RC frame and CM buildings is compared using past seismic performance and literature. It is concluded that confined masonry is a better alternative for sustainable housing in seismic-prone regions of India.

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“…Earthquakes and laboratory tests show the effectiveness of confined masonry systems. The seismic performance is also influenced by the masonry properties, structure configuration and reinforcement in tie columns and tie beams [8]. The literature shows that slender masonry walls may experience buckling to axial force [9].…”

Section: Introductionmentioning

confidence: 99%

Concrete consoles impact to a masonry walls building with a large hall at the top story and a lightweight timber roof

Constantinescu

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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The paper studies the behavior of a medium height masonry walls building, placed in Satu Mare (Romania). It contains large balcony consoles and a large hall at the top story, covered by a timber roof. The roof trusses sit at both ends on the external walls. The study’s purpose is to determine the importance of large slab consoles and walls buttresses at the top story, for the structure. The paper compares the structure’s behavior in 3 cases. The first contains both large consoles and wall spurs, the second only incorporates pier buttresses and the third holds just the balcony consoles. The structure’s behavior for both the elastic and plastic stage is compared for the 3 cases. The plastic stage shows the bending moment’s distribution in slabs and stresses in masonry walls during stages when they surpass the masonry strengths. The plastic hinges development at structure collapse and the pushover diagrams for each case along with the results interpretation are presented. A nonlinear analysis is done for the timber roof also, for both orthogonal directions. The study shows both large consoles and halls at the top floor are appropriate for masonry structures, if designed correctly.

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Influential aspects on seismic performance of confined masonry construction

Cited by 7 publications

References 4 publications

Applying the damage assessment for rapid response approach to the august 24 M6 event of the seismic sequence in central Italy (2016)

Applying the damage assessment for rapid response approach to the august 24 M6 event of the seismic sequence in central Italy (2016)

Sustainable housing using confined masonry buildings

Concrete consoles impact to a masonry walls building with a large hall at the top story and a lightweight timber roof

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