An innovative approach for reducing the seismic risk of existing buildings and historic sites

2013 ◽  
pp. 507-514 ◽  
Author(s):  
D Lombardi ◽  
A Flora ◽  
S Lirer ◽  
F Silvestri
Keyword(s):  
Seismic Risk ◽  
Innovative Approach ◽  
Existing Buildings ◽  
Historic Sites

SEISMIC RISK ASSESSMENT AND REDUCTION IN ITALY

2019 ◽  
Vol 1 (Special Issue on First SACEE'19) ◽  
pp. 55-75
Author(s):  
Fabio Sabetta
Keyword(s):  
Risk Assessment ◽  
Seismic Risk ◽  
Safety Assessment ◽  
Public Funding ◽  
Tax Incentives ◽  
Technical Training ◽  
Disaster Prevention ◽  
Existing Buildings ◽  
Seismic Risk Assessment ◽  
Post Disaster

In this paper, the main features of the policies adopted in Italy for seismic risk reduction are discussed. Particular attention is given to the Pre-disaster prevention activities such as the implementation of the building code, the seismic risk assessment for a priority scale of intervention, tax incentives and public funding for the vulnerability reduction of the existing buildings, information to population and school education, technical training of experts. The phases of response and post-disaster activities, including emergency management, search and rescue, loss scenarios, and safety assessment of buildings, are also discussed taking example from the most recent devastating earthquakes in Italy (L.Aquila 2009, Amatrice 2016).

Development of a preliminary seismic risk screening tool for existing buildings in Canada

2018 ◽  
Vol 45 (9) ◽  
pp. 717-727 ◽  
Author(s):  
Reza Fathi-Fazl ◽  
Eric Jacques ◽  
Zhen Cai ◽  
Bessam Kadhom ◽  
Bassem Saassouh ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Seismic Performance ◽  
Seismic Design ◽  
Seismic Risk ◽  
Screening Tool ◽  
Existing Buildings ◽  
Seismic Risk Assessment ◽  
Risk Screening ◽  
Categorization System ◽  
Remaining Time

This paper presents a preliminary seismic risk screening tool to identify buildings whose superior structural and non-structural seismic performance in regions of low seismicity can be assessed based on several key attributes. The tool is designed to exempt buildings from detailed seismic risk assessment if key exemption criteria are met. The exemption criteria are based on: a seismic categorization system linked to anticipated building damage and seismicity; whether or not the building was designed using modern seismic design provisions; and the remaining time that the building will be occupied. The tool also provides a second list of criteria, which if satisfied, will automatically trigger further detailed seismic risk assessment. The decisions rendered by the tool regarding the expected seismic performance of a building are evaluated against the next level of seismic risk screening tool to ensure the consistency. A flowchart is presented to facilitate adoption of the tool by practicing engineers and other end-users.

Benchmark NBC editions for seismic risk management of existing buildings in Canada

2021 ◽  
pp. 1-11
Author(s):  
Reza Fathi-Fazl ◽  
Bessam Kadhom ◽  
Zhen Cai ◽  
Farrokh Fazileh
Keyword(s):  
Risk Management ◽  
Seismic Risk ◽  
Model Building ◽  
National Research Council ◽  
The United States ◽  
Building Code ◽  
Existing Buildings ◽  
Design Standards ◽  
Multi Level ◽  
Seismic Risk Management

The National Research Council Canada recently developed a multi-criteria and multi-level framework for seismic risk management of existing buildings in Canada. One of the key criteria in this framework is benchmark NBC edition, which refers to the applicable edition of National Building Code of Canada (NBC) in which significantly improved seismic requirements were adopted and enforced. Since post-benchmark buildings are expected to demonstrate satisfactory seismic performance, they may be exempt from structural seismic risk assessment. This paper identifies benchmark NBC editions for 17 model building types in Canada. The identification starts by tracking major seismic improvements in the United States benchmark codes and standards. These improvements are then mapped to applicable NBC editions and relevant design standards. Provincial building code editions corresponding to benchmark NBC editions are also identified. The benchmark NBC editions and corresponding provincial building code editions help building owners quickly identify and exempt post-benchmark buildings with acceptable seismic risks and thus allocate resources to the buildings with potentially unacceptable seismic risks.

scholarly journals Seismic risk mitigation at Ischia island (Naples, Southern Italy): An innovative approach to mitigate catastrophic scenarios

2019 ◽  
Vol 261 ◽  
pp. 105285 ◽  
Author(s):  
Giuseppe De Natale ◽  
Stefano Petrazzuoli ◽  
Fabio Romanelli ◽  
Claudia Troise ◽  
Franco Vaccari ◽  
...  
Keyword(s):  
Seismic Risk ◽  
Southern Italy ◽  
Risk Mitigation ◽  
Innovative Approach ◽  
Ischia Island ◽  
Seismic Risk Mitigation

Methodology for seismic risk screening of existing buildings in Canada: Structural scoring system

2021 ◽  
Vol 48 (3) ◽  
pp. 250-262 ◽  
Author(s):  
Reza Fathi-Fazl ◽  
Zhen Cai ◽  
Eric Jacques ◽  
W. Leonardo Cortés-Puentes
Keyword(s):  
Seismic Design ◽  
Scoring System ◽  
Seismic Risk ◽  
Research Council ◽  
Screening Tool ◽  
National Research Council ◽  
Existing Buildings ◽  
Risk Screening ◽  
Existing Building ◽  
Building Characteristics

The National Research Council Canada recently developed a Semi-Quantitative Seismic Risk Screening Tool (SQST) for seismic risk screening of existing buildings in Canada. This paper presents the structural scoring system that is part of the SQST. The structural scoring methodology is based on FEMA P-154, but has been substantially modified to suit Canadian seismicity and seismic design and construction practices. Structural scores are obtained by adding structural basic scores and applicable score modifiers. For an existing building, a structural basic score is determined by calculating the probability of collapse on the basis of a number of assumptions. Then a series of score modifiers are calculated to address the effects of applicable building characteristics on the building’s seismic performance. The structural score is compared with an acceptable structural threshold to determine whether the structural seismic risk is acceptable. The objective of the structural scoring system is to ensure an acceptable and consistent seismic risk in building portfolios while minimizing life safety threats.

scholarly journals A Review on Seismic Retrofit of Beam-Column Joints

2020 ◽  
Vol 06 (09) ◽  
pp. 80-93
Author(s):  
Sreadha A R, Dr.C.Pany and M V Varkey
Keyword(s):  
Seismic Risk ◽  
Seismic Retrofit ◽  
Seismic Retrofitting ◽  
Fiber Reinforced Polymers ◽  
Existing Buildings ◽  
Fiber Reinforced ◽  
Seismic Strengthening ◽  
Crucial Issue ◽  
Reinforced Polymers ◽  
The World

Earthquakes are one of the biggest life-threats in the world. The effect is immediate, with little to no warning about damage plans and the collapse of buildings/structures. Prevention of earthquake-related disasters has become more and more important in recent years. Preventing disasters involves reducing seismic risk by retrofitting existing buildings. Seismic retrofitting has now become a crucial issue. Retrofitting helps improve the structure's strength, resistivity and overall lifespan. Recent occurrences of earthquakes in various parts of the world have clearly shown the urgency of repairing deficient seismic structures. The paper summarised many past studies in the form of a seismic strengthening solution, based on the type of beam-column joints, retrofitting technology and fiber reinforced polymers (FRP).

Parametric approach in BIM environment for the assessment of existing masonry buildings

2021 ◽  
Author(s):  
Pietro Croce ◽  
Filippo Landi ◽  
Massimiliano Martino ◽  
Benedetta Puccini ◽  
Alessio Maneo
Keyword(s):  
Risk Assessment ◽  
Structural Analysis ◽  
Seismic Risk ◽  
Assessment Process ◽  
Masonry Buildings ◽  
Analysis Program ◽  
Parametric Approach ◽  
Analysis Method ◽  
Existing Buildings

<p>BIM-based processes are becoming increasingly relevant in architecture, engineering and construction industries, especially for design of new engineering works. Implementation of this technology for existing buildings, Heritage BIM (HBIM), mainly focuses on the reconstruction of geometries and the collection of historical documentation, while areas of structural analyses and verifications are currently less developed.</p><p>In this context, a parametric procedure in BIM environment for the structural assessment of existing masonry buildings is proposed, starting from an innovative analysis method previously developed by the authors (E-PUSH). Combining this structural analysis program with the advantages of the BIM methodology, the management of the data is improved and the assessment process is simplified.</p><p>The proposed BIM workflow will be illustrated in detail with reference to a real case study, showing benefits of the BIM approach in the process of seismic risk assessment.</p>

Seismic screening of buildings based on the 2010 National Building Code of Canada

2013 ◽  
Vol 40 (5) ◽  
pp. 483-498 ◽  
Author(s):  
M. Saatcioglu ◽  
M. Shooshtari ◽  
S. Foo
Keyword(s):  
Seismic Risk ◽  
Research Council ◽  
National Research Council ◽  
Building Code ◽  
Soil Amplification ◽  
Existing Buildings ◽  
Uniform Hazard Spectrum ◽  
Structural Types ◽  
Soil Amplification Factors ◽  
Screening Software

Seismic screening software is developed for existing buildings in Canada on the basis of the requirements of 2010 National Building Code of Canada. The software is based on the “Manual for Screening of Buildings for Seismic Investigation,” published by the National Research Council of Canada in 1992. The new software incorporates updated seismicity and soil classifications used in the National Building Code of Canada (NBCC) since 2005, as well as the new ductility and over-strength factors specified in the 2010 NBCC. The uniform hazard spectrum values of the current Canadian seismicity, defined for each municipality in Canada with a 2500 year earthquake return period, are used as reference hazard values. Seismic risk associated with the use of older seismic hazard values specified in older editions of the NBCC is identified relative to the current reference seismicity. The new site classifications are incorporated, while establishing relative soil amplification values between the new acceleration-based and velocity-based soil amplification factors and the foundation factors used in older codes. The new ductility and over-strength factors used in recent editions of the code are introduced in identifying different structural types with different toughness and energy dissipation capacities. The software can be used to conduct seismic screening of buildings located in different municipalities in Canada relative to the seismic requirements of NBCC-2010. It can also be used to generate tables for different locations in the country for manual screening of buildings.

Seismic Hazard and Seismic Zonation of the Region Affected by the 2002 Molise, Italy, Earthquake

2004 ◽  
Vol 20 (1_suppl) ◽  
pp. 131-165 ◽  
Author(s):  
Luis Decanini ◽  
Giacomo Di Pasquale ◽  
Paolo Galli ◽  
Fabrizio Mollaioli ◽  
Tito Sanò
Keyword(s):  
Seismic Hazard ◽  
Seismic Risk ◽  
Civil Protection ◽  
Existing Buildings ◽  
Seismic Zonation ◽  
History Of ◽  
The Rich ◽  
Seismic Area ◽  
Official Recognition ◽  
New System

In 1998, a new system of seismic classification promoted by the Department of Civil Protection identified the area in Italy hit by the 2002 earthquake in Molise and Puglia as a Zone 2 (moderately seismic). However, this classification was not adopted until March 2003, when an ordinance passed that partially closed the gap between scientific knowledge and official recognition of seismic hazard and that established a method for constantly updating the classification in the future. This paper reviews some of the methods available to assess the seismic hazard, particularly referring to the rich seismic history of Italy and using the “Associated Seismic Area” concept. This study confirms that the area affected by this earthquake should be considered as Zone 2. An appendix presents data on the seismic risk of existing buildings in the area and concludes that it is high for masonry buildings and that a strengthening program is needed.

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