A procedure for the identification of the seismic vulnerability at territorial scale. Application to the Casbah of Algiers

Novelli, Viviana; D’Ayala, Dina; Makhloufi, N.; Benouar, Djillali; Zekagh, Abdelwahab

doi:10.1007/s10518-014-9666-1

Cited by 33 publications

(18 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The seismic risk assessment performed by using the first evaluation level EL1, as proposed by the IG (PCM 2011), allows analysing the global seismic performance of the structure by means of a simplified approach involving a limited knowledge of the geometrical and mechanical parameters. This type of analysis represents a useful tool for the seismic performance assessments at a territorial level (Novelli et al 2015). This is because it allows to: Table 1 Assumed mechanical properties of masonry USM (uncut stone masonry with low quality inner core); DRS (dressed rectangular stone masonry).…”

Section: Seismic Risk Assessment By El1 Approachmentioning

confidence: 99%

Analytical and numerical seismic assessment of heritage masonry towers

Torelli

D’Ayala

Betti

et al. 2019

Bull Earthquake Eng

View full text Add to dashboard Cite

The new Italian building code, published in 2018 [MIT in NTC 2018: D.M. del Ministero delle Infrastrutture e dei trasporti del 17/01/2018. Aggiornamento delle Norme Tecniche per le Costruzioni (in Italian), 2018], explicitly refers to the Italian "Guidelines for the assessment and mitigation of the seismic risk of the cultural heritage" [PCM in DPCM 2011: Direttiva del Presidente del Consiglio dei Ministri per valutazione e riduzione del rischio sismico del patrimonio culturale con riferimento alle norme tecniche per le costruzioni, G.U. n. 47 (in Italian), 2011] as a reliable source of guidance that can be employed for the vulnerability assessment of heritage buildings under seismic loads. According to these guidelines, three evaluation levels are introduced to analyse and assess the seismic capacity of historic masonry structures, namely: (1) simplified global static analyses; (2) kinematic analyses based on local collapse mechanisms, (3) detailed global analyses. Because of the complexity and the large variety of existing masonry typologies, which makes it particularly problematic to adopt a unique procedure for all existing structures, the guidelines provide different simplified analysis approaches for different structural configurations, e.g. churches, palaces, towers. Among the existing typologies of masonry structures there considered, this work aims to deepen validity, effectiveness and scope of application of the Italian guidelines with respect to heritage masonry towers. The three evaluation levels proposed by the guidelines are here compared by discussing the seismic risk assessment of a representative masonry tower: the Cugnanesi tower located in San Gimignano (Italy). The results show that global failure modes due to local stress concentrations cannot be identified if only simplified static and kinematic analyses are performed. Detailed global analyses are in fact generally needed for a reliable prediction of the seismic performance of such structures.

show abstract

Section: Seismic Risk Assessment By El1 Approachmentioning

confidence: 99%

Analytical and numerical seismic assessment of heritage masonry towers

Torelli

D’Ayala

Betti

et al. 2019

Bull Earthquake Eng

View full text Add to dashboard Cite

show abstract

“…The use of sensors associated with georeferenced systems is one of the most widespread fields in this area. In the sector of cultural heritage tourism, this, along with virtual architecture and augmented reality, is linked to reconstruction following natural disasters or the development of museological models [9]. Despite the now extensive availability of even low-cost tools, there is still a lack of software platforms that permit linkage with monitoring systems or the use of spatial data models for the analysis and simulation of possible scenarios.…”

Section: State-of-the-art and Data Descriptionmentioning

confidence: 99%

The Historical Small Smart City Protocol (HISMACITY): Toward an Intelligent Tool Using Geo Big Data for the Sustainable Management of Minor Historical Assets

Pica

Cecili

Annicchiarico

et al. 2019

Data

View full text Add to dashboard Cite

This research reports the ongoing design of the HISMACITY (Historical Small Smart City) Protocol, a planning tool with a certification system. The tool is designed for small municipalities in Europe. Through the award-winning certification system, the Protocol supports the fulfillment of best practices. Such practices can enhance town attractiveness. It also counteracts excessive land use that results from urban growth, and reduces demographic decline in internal areas of each country. The research methodology is grounded on building a dynamic dataset using geo big data, local data, and mobile data via information communications technology (ICT), and real-time data through sensors. The tool aims to build algorithms to calculate indicators that measure quality standards of integrated interventions. The aim is to reach specific goals within defined priority areas of the Historical Small Smart City Protocol. Being highly adaptive, the framework follows urban responsive design principles based on weighted suitability models that can be calibrated by changing the input data and the weights of the linear combination formula. The results highlight varying framework data, including the tool’s development procedures and practicality.

show abstract

“…The seismic performance of the buildings inspected in Lifidzi and Balaka is assessed using FaMIVE [10,11,15,16]. The approach is based on a mechanical procedure, relying on the assumption that buildings behave as an assemblage of macro elements, held together by compressive forces.…”

Section: Estimation Of Load Factor Multipliers and Failure Mode Distrmentioning

confidence: 99%

Seismic Vulnerability Assessment of Non-Engineered Masonry Buildings in Malawi

Novelli¹,

Ngoma²,

Kloukinas³

et al. 2019

Proceedings of the 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

View full text Add to dashboard Cite

Malawi is located within the southern branch of the active East African Rift System, where earthquakes of Mw 7.0 (or greater) can occur along major faults. In Malawi, the majority of dwellings in both formal and informal settlements are non-engineered unreinforced masonry constructions, built by local artisans with little input from engineers. These constructions are highly vulnerable to seismic events due to poor materials and lack of construction detailing. This study develops analytical vulnerability functions that enable the assessment of seismic capacity of typical buildings in Malawi. Since the seismic vulnerability greatly depends on building characteristics, geometrical and structural data are collected by conducting semirapid surveys of 300 houses located in urban and rural areas of Central and Southern regions of Malawi. Mechanical properties of the local materials are also obtained from an experimental campaign. In this work, a mechanical method FaMIVE (Failure Mechanism Identification and Vulnerability Evaluation) is adopted and the effects of both in-plane and out-ofplane behaviour of the masonry structures are taken into consideration to derive capacity curves for seismic vulnerability assessment. Special attention is given to 1) the Malawian building typologies as described in the Word Housing Encyclopedia and 2) failure mode classes for the Malawian constructions as calculated by FaMIVE. Hence, the derived vulnerability functions can serve as a benchmark for typical buildings in Malawi. The results and conclusions are also relevant for other East African countries, where similar construction techniques are adopted.

show abstract

A procedure for the identification of the seismic vulnerability at territorial scale. Application to the Casbah of Algiers

Cited by 33 publications

References 21 publications

Analytical and numerical seismic assessment of heritage masonry towers

Analytical and numerical seismic assessment of heritage masonry towers

The Historical Small Smart City Protocol (HISMACITY): Toward an Intelligent Tool Using Geo Big Data for the Sustainable Management of Minor Historical Assets

Seismic Vulnerability Assessment of Non-Engineered Masonry Buildings in Malawi

Contact Info

Product

Resources

About