scholarly journals QUANTITATIVE SEISMIC RISK INDEX FOR PERFORMANCE-BASED SEISMIC EVALUATION OF BUILDING STRUCTURES BASED ON EXPECTATION VALUE OF MAXIMUM RESPONSES

2009 ◽  
Vol 74 (638) ◽  
pp. 601-610 ◽  
Author(s):  
Yuki NAKAYAMA ◽  
Hiroshi ISHIDA
Keyword(s):  
Seismic Risk ◽  
Risk Index ◽  
Building Structures ◽  
Seismic Evaluation ◽  
Expectation Value

scholarly journals Active scissor-jack for seismic risk mitigation of building structures

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Seyyed Farhad Mirfakhraei ◽  
Gholamreza Andalib ◽  
Ricky Chan
Keyword(s):  
Seismic Risk ◽  
Risk Mitigation ◽  
Building Structures ◽  
Seismic Risk Mitigation

Seismic risk evaluation of existing masonry buildings: methods and uncertainties

2019 ◽  
Author(s):  
Pietro Croce ◽  
Maria Luisa Beconcini ◽  
Paolo Formichi ◽  
Filippo Landi ◽  
Benedetta Puccini ◽  
...  
Keyword(s):  
Seismic Risk ◽  
Ad Hoc ◽  
Risk Index ◽  
Critical Issue ◽  
Masonry Building ◽  
Masonry Buildings ◽  
Non Linear ◽  
Static Approach ◽  
Definition Of

<p>Masonry structures represent a large part of existing buildings. As confirmed by the damage caused by recent seismic events, the assessment of seismic performance of existing masonry building is then a critical issue in Countries exposed to seismic risk. Moreover, common methods of analysis based on non-linear static approach are significantly influenced by the assumptions about the shear behavior of masonry walls and may lead to inconsistent or contradictory results.</p><p>Due to the relevance of the problem ad hoc studies have been performed to clarify how the most relevant parameters affect the theoretical structural behavior and to setup a proper method to define these parameters.</p><p>In the paper, the main sources of uncertainties regarding the definition of material parameters are investigated and a methodology for the identification of masonry classes is illustrated discussing the propagation of uncertainties related to masonry parameters in non-linear static analysis of masonry buildings. The analysis are carried out through a simplified non-linear pushover type algorithm developed by the authors and the outcomes are illustrated and critically discussed for a relevant case study.</p><p>The results show the capability of the proposed procedure for the identification of masonry classes and the evaluation of masonry mechanical parameters to provide a more refined probabilistic assessment of the seismic risk index.</p>

scholarly journals Urban seismic risk index for Medellín, Colombia, based on probabilistic loss and casualties estimations

2015 ◽  
Vol 80 (3) ◽  
pp. 1995-2021 ◽  
Author(s):  
Mario A. Salgado-Gálvez ◽  
Daniela Zuloaga Romero ◽  
César A. Velásquez ◽  
Martha L. Carreño ◽  
Omar-Darío Cardona ◽  
...  
Keyword(s):  
Seismic Risk ◽  
Risk Index ◽  
Urban Seismic Risk

Behaviour of Reinforced Concerete Infilled Frames Under Seismic Loads

2013 ◽  
Vol 61 (3) ◽  
Author(s):  
A. Kadid ◽  
S. Noui ◽  
A. Zine ◽  
D. Yahiaoui
Keyword(s):  
Seismic Risk ◽  
Structural Response ◽  
Seismic Loads ◽  
Structural Components ◽  
Seismic Evaluation ◽  
Lateral Capacity ◽  
Rc Frames ◽  
Infill Panels ◽  
Frame Buildings ◽  
Algerian Seismic Code

A significant portion of the buildings constructed in Algeria is structural frames with infill panels which are usually considered as non structural components and are neglected in the analysis. However, these masonry panels tend to influence the structural response. Thus, these structures can be regarded as seismic risk buildings, although in the Algerian seismic code there is little guidance on the seismic evaluation of infilled frame buildings. In this study, three RC frames with 2, 4 and 8 storey and subjected to three recorded Algerian accelerograms are studied. The diagonal strut approach is adopted for modeling the infill panels and a fiber model is used to model RC members. This paper reports on the seismic evaluation of RC frames with brick infill panels. The results obtained show that the masonry panels enhance the load lateral capacity of the buildings and the infill panel configuration influences the response of the structures.

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