The Potenza Province emergency plan: The seismic vulnerability map of buildings for the construction of earthquake damage scenarios

2010 ◽  
pp. 45-50
Keyword(s):  
Seismic Vulnerability ◽  
Earthquake Damage ◽  
Emergency Plan ◽  
Damage Scenarios ◽  
Vulnerability Map

SEISMIC CAPACITY OF MEDIUM SIZE CONTINUOUS BRIDGES WITH LEAD-RUBBER BEARINGS

2019 ◽  
Vol 3 (Special Issue on First SACEE'19) ◽  
pp. 199-206
Author(s):  
Bertha Olmos ◽  
José Jara ◽  
José Luis Fabián
Keyword(s):  
Seismic Performance ◽  
Seismic Vulnerability ◽  
Base Isolation ◽  
Elastic Behaviour ◽  
Medium Size ◽  
Nonlinear Behaviour ◽  
Seismic Capacity ◽  
Damage Scenarios ◽  
Isolation Systems ◽  
Rubber Bearings

This paper investigates the effects of the nonlinear behaviour of isolation pads on the seismic capacity of bridges to identify the parameters of base isolation systems that can be used to improve seismic performance of bridges. A parametric study was conducted by designing a set of bridges for three different soil types and varying the number of spans, span lengths, and pier heights. The seismic responses (acceleration, displacement and pier seismic forces) were evaluated for two structural models. The first model corresponded to the bridges supported on elastomeric bearings with linear elastic behaviour and the second model simulated a base isolated bridge that accounts for the nonlinear behaviour of the system. The seismic demand was represented with a group of twelve real accelerograms recorded on the subduction zone on the Pacific Coast of Mexico. The nonlinear responses under different damage scenarios for the bridges included in the presented study were estimated. These results allow determining the seismic capacity of the bridges with and without base isolation. Results show clearly the importance of considering the nonlinear behaviour on the seismic performance of bridges and the influence of base isolation on the seismic vulnerability of medium size bridges.

Large-Scale Seismic Vulnerability Assessment Method for Urban Centres. An Application to the City of Florence

2014 ◽  
Vol 628 ◽  
pp. 49-54 ◽  
Author(s):  
Maurizio Ripepe ◽  
Giorgio Lacanna ◽  
Pauline Deguy ◽  
Mario de Stefano ◽  
Valentina Mariani ◽  
...  
Keyword(s):  
Vulnerability Assessment ◽  
Large Scale ◽  
Seismic Vulnerability ◽  
Risk Mitigation ◽  
Structural Features ◽  
Assessment Method ◽  
Ground Acceleration ◽  
Seismic Vulnerability Assessment ◽  
Damage Scenarios ◽  
The City

The seismic vulnerability assessment of a building requires a comprehensive knowledge of both building structural features and soils geophysical parameters. To achieve a vulnerability assessment at the urban scale a large amount of data would be necessary, with a consequent involvement of time and economical resources. The aim of this paper is hence to propose a simplified procedure to evaluate the seismic vulnerability of urban centres and possible seismic damage scenarios in order to identify critical areas and/or building typologies to plan future actions of seismic risk mitigation and prevention. The procedure is applied to the outstanding case study of the city of Florence. The research is based on the definition of major building typologies related to construction periods and type of the structural system (masonry or reinforced concrete), the identification of a set of sample buildings, the analysis of the dynamic behaviour and the evaluation of a vulnerability index with an expeditious approach. The obtained results allow to define potential vulnerability and post-event damage scenarios related to the expected levels of peak ground acceleration.

scholarly journals PHYSICAL SEISMIC VULNERABILITY ASSESSMENT OF TEHRAN USING THE INTEGRATION OF GRANULAR COMPUTING AND INTERVAL DEMPSTER- SHAFER

2017 ◽  
Vol XLII-2/W7 ◽  
pp. 469-477
Author(s):  
M. R. Delavar ◽  
M. Bahrami ◽  
M. Zare
Keyword(s):  
Vulnerability Assessment ◽  
Granular Computing ◽  
Seismic Vulnerability ◽  
Interval Computation ◽  
Combination Rule ◽  
Effective Parameters ◽  
Physical Vulnerability ◽  
Seismic Vulnerability Assessment ◽  
Vulnerability Map

Several faults exist in the vicinity of Tehran, the capital of Iran such as North Tehran, Ray, Mosha and Kahrizak. One way to assist reducing the damage caused by the earthquake is the production of a seismic vulnerability map. The study area in this research is Tehran, based on the assumption of the activation of North Tehran fault. Degree of Physical seismic vulnerability caused by the earthquake depends on a number of criteria. In this study the intensity of the earthquake, land slope, numbers of buildings’ floors as well as their materials are considered as the effective parameters. Hence, the production of the seismic vulnerability map is a multi criteria issue. In this problem, the main source of uncertainty is related to the experts’ opinions regarding the seismic vulnerability of Tehran statistical units. The main objectives of this study are to exploit opinions of the experts, undertaking interval computation and interval Dempster-Shafer combination rule to reduce the uncertainty in the opinions of the experts and customizing granular computing to extract the rules and to produce Tehran physical seismic vulnerability map with a higher confidence. Among 3174 statistical units of Tehran, 150 units were randomly selected and using interval computation, their physical vulnerabilities were determined by the experts in earthquake-related fields. After the fusion of the experts’ opinions using interval Dempster-Shafer, the information table is prepared as the input to granular computing and then rules are extracted with minimum inconsistency. Finally, the seismic physical vulnerability map of Tehran was produced with % 72 accuracy.

scholarly journals Mikrozonasi di Daerah Plampang, Nusa Tenggara Barat

EKSPLORIUM ◽  
2021 ◽  
Vol 42 (1) ◽  
pp. 39
Author(s):  
Eko Rudi Iswanto ◽  
Theo Alvin Riyanto ◽  
Hadi Suntoko
Keyword(s):  
Seismic Vulnerability ◽  
Volcanic Rocks ◽  
Spectral Ratio ◽  
Vulnerability Index ◽  
Tectonic Activity ◽  
Analysis Method ◽  
The North ◽  
Vulnerability Maps ◽  
Vulnerability Map ◽  
Microtremor Measurement

ABSTRAK Provinsi Nusa Tenggara Barat (NTB) merupakan daerah dengan aktivitas kegempaan yang tinggi. Fenomena ini disebabkan oleh adanya aktivitas tektonik sebagai akibat pertemuan Lempeng Eurasia-Australia (zona subduksi) di bagian selatan dan Sesar Flores di bagian utara serta adanya keberadaan sesar-sesar lokal. Terkait dengan rencana pengembangan kawasan Samota di Pulau Sumbawa, NTB, perlu dilakukan suatu kajian kegempaan. Tujuan penelitian ini adalah memetakan indeks kerentanan seismik (Kg) melalui pengukuran mikrotremor dengan analisis menggunakan metode Horizontal to Vertical Spectral Ratio (HVSR). Hasil penelitian berupa peta kerentanan seismik daerah Plampang yang menunjukkan bahwa sisi utara lokasi penelitian memiliki indeks kerentanan seismik rendah yang ditandai dengan nilai amplifikasi kurang dari tiga jika dibandingkan daerah lainnya. Geologi sisi utara lokasi penelitian tersusun oleh batuan gunung api dengan karakteristik batuan keras, ketebalan sedimen sangat tipis, dan tersusun atas batuan Tersier atau lebih tua. Peta kerentanan seismik berguna sebagai acuan dalam mitigasi gempa bumi untuk mengurangi risiko yang ditimbulkan. ABSTRACT Nusa Tenggara Barat (NTB) Province is an area with intense seismic activity. This phenomenon is caused by tectonic activity as the result of the convergency of the Eurasia-Australia Plates (subduction zone) in the south and the Flores Fault in the north as well as the presence of local faults. Regarding the plan to develop the Samota area in Sumbawa Island, NTB, a study concerning earthquakes should be done. The purpose of this study is to map the seismic vulnerability index (Kg) through microtremor measurement by using the Horizontal to Vertical Spectral Ratio (HVSR) analysis method. The result of the study is a seismic vulnerability map of the Plampang area which its northern part has a low seismic vulnerability index indicated by the amplification factor value of less than three compared to other areas. The geology of the northern part of the Plampang area consists of volcanic rocks which has hard rock characteristic, very thin sediment thickness, and composed of Tertiary or older rocks. Seismic vulnerability maps can be useful as a reference for earthquake mitigation to reduce its risks.

The 16 April 2016 Ecuador Earthquake Damage Assessment Survey

2018 ◽  
Vol 34 (3) ◽  
pp. 1201-1217 ◽  
Author(s):  
Enrique Villalobos ◽  
Chungwook Sim ◽  
J. Paul Smith-Pardo ◽  
Pedro Rojas ◽  
Santiago Pujol ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Damage Assessment ◽  
Structural Damage ◽  
Seismic Vulnerability ◽  
Earthquake Damage ◽  
Column Height ◽  
Priority Index ◽  
Index Pairs ◽  
Assessment Survey ◽  
Earthquake Damage Assessment

A damage assessment survey of 169 low-rise reinforced concrete buildings was conducted following the 16 April 2016 Ecuador earthquake. Forty-four percent of the buildings surveyed sustained severe structural damage. Using the collected data, seismic vulnerability indices were calculated to examine their correlation with damage observations. It was found that 92% of the buildings with observed severe structural damage had calculated wall and column index pairs (WI, CI) that satisfied the relation WI+CI/2 < 0.2%. The frequency of damage was lower for higher-priority index values, defined as the sum of CI+WI. Furthermore, frequency of damage in buildings with captive columns was observed to decrease with window height-to-column height ratios of more than 20%.

Observed and predicted earthquake damage scenarios: the case study of Pettino (L’Aquila) after the 6th April 2009 event

2016 ◽  
Vol 14 (10) ◽  
pp. 2643-2678 ◽  
Author(s):  
Carlo Del Gaudio ◽  
Paolo Ricci ◽  
Gerardo M. Verderame ◽  
Gaetano Manfredi
Keyword(s):  
Earthquake Damage ◽  
Damage Scenarios

scholarly journals Managing natural disaster risk with earthquake damage scenarios and shakeout exercises: Lessons from Mw = 8 Mandi multi-stakeholders scenario in India

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Pawan Kumar Taneja ◽  
Shallini Taneja
Keyword(s):  
Earthquake Damage ◽  
Research Approach ◽  
Scenario Development ◽  
Damage Scenario ◽  
Cross Sectional ◽  
Emergency Plans ◽  
Damage Scenarios ◽  
Grass Root Level ◽  
The Government ◽  
Earthquake Damage Scenario

Scientifically simulated Earthquake Damage Scenario (EDS) and Shakeout exercises help the policymakers to set up emergency plans for the immediate consequences and medium-long-term mitigation and prevention for a seismic event. The purpose of this study is to draw important lessons and a deeper understanding of issues and challenges in planning and implementing such exercises in a highly populous developing country like India. The Government of India developed a first-ever multi-state and multi-stakeholders EDS naming Mw = 8 Mandi and conducted a Mega Multicity Shakeout Exercise in the Western Himalayan Region during 2014. A cross-sectional research design consisting of a mainly qualitative research approach using a multi-stakeholders perspective approach was used to factor key lessons. The scenario development and shakeout exercise faced several challenges such as lack of awareness among concerned stakeholders, lack of technical know-how at the grass-root level, lack of poor coordination among various stakeholders, and unavailability of data on important issues. Due to the lack of understanding of the sensitivity of the issue, the success of implementation largely depends on the involvement of the top leadership of state governments. Scientific EDS exercises followed by mega shakeout exercises helped not only the community up to some extent but also mainly helped administration, government agencies in generating awareness of the earthquake and possible risk attached to it.

Earthquake Damage Scenarios in Lisbon for Disaster Preparedness

1994 ◽  
pp. 265-289 ◽  
Author(s):  
L. Mendes-Victor ◽  
C. S. Oliveira ◽  
I. Pais ◽  
P. Teves-Costa
Keyword(s):  
Disaster Preparedness ◽  
Earthquake Damage ◽  
Damage Scenarios
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