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Academic literature on the topic 'Seismic evaluation of buildings in Delhi region'

Author: Grafiati
Published: 6 September 2023

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Journal articles on the topic "Seismic evaluation of buildings in Delhi region"

1

Kim, Jin-Soo, and Hong Seo. "A Study on the Improvement of the Safety Diagnosis System for Housing Reconstruction: Focusing on the legislative proposal of the National Assembly of Korea." Korean Public Land Law Association 103 (August 31, 2023): 171–93. http://dx.doi.org/10.30933/kpllr.2023.103.171.

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Reconstruction contributes to improving the quality of life of residents by creating an aging, unstable and poor residential environment into a safe and pleasant residential environment, and is also an important means of realizing basic constitutional rights such as people's right to pursue happiness, property rights, and housing freedom. However, the reconstruction project is causing a lot of confusion to the housing market and the people as related laws and systems repeatedly regulate and ease due to the ups and downs of the housing market and regime change. Accordingly, this study attempted to investigate and analyze legislative system improvement efforts raised by the National Assembly on the “Safety Diagnosis Standards for Housing Reconstruction” announced by the government and derive reasonable system improvement measures through Delphi, experts related to safety diagnosis. Based on this process, I would like to propose a plan to improve the current housing reconstruction safety diagnosis system. First, the authority to determine safety diagnosis, including the composition and ratio of each item of the safety diagnosis evaluation criteria, should be delegated to the head of the metropolitan government. Critics say that the Ministry of Land, Infrastructure and Transport does not reflect the characteristics of the region and hinders the smooth promotion of reconstruction projects by setting safety diagnosis standards uniformly and uniformly in different situations. Therefore, it is necessary to delegate the authority to decide on safety diagnosis standards to the heads of metropolitan local governments. Second, Article 2, Subparagraph 3 (b) of the current Urban Improvement Act defines “significant functional defects among buildings that have not secured seismic performance” as old-age defective buildings. However, whether or not seismic design is reflected in the structural safety evaluation item is omitted. Structural safety assessment items should include whether seismic design is reflected. Third, although geological conditions and ground conditions have a very significant impact on the structural safety of buildings, geological conditions and ground conditions are omitted from the structural stability evaluation items. The omission of these important evaluation factors is a factor that degrades the validity and reliability of the safety diagnosis evaluation results. Fourth, the use of asbestos building materials should be reflected in the safety diagnosis evaluation items. When inhaled into the human body, asbestos, a first-class carcinogen designated by the World Health Organization, causes fatal diseases such as asbestos lung disease, lung cancer, and malignant mesothelioma. Therefore, in Korea, the Asbestos Safety Management Act has been enacted to thoroughly manage asbestos exposure contained in buildings so that it does not damage public health. Fifth, it is necessary for local governments to support certain costs incurred by conducting safety diagnosis for housing reconstruction. However, some say that local governments should not invest in projects to rebuild private property, but the reconstruction project improves the residential environment of owners, such as local land, while creating public benefits such as roads, parks, community facilities, and public rental housing. It is currently supported by some local governments.
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Javed, Mohammed, Guido Magenes, Bashir Alam, Akhtar Naeem Khan, Qaisar Ali, and Ali M. Syed. "Experimental Seismic Performance Evaluation of Unreinforced Brick Masonry Shear Walls." Earthquake Spectra 31, no. 1 (February 2015): 215–46. http://dx.doi.org/10.1193/111512eqs329m.

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Unreinforced masonry buildings, constructed with stones or bricks, are common in the northern areas of Pakistan. In the October 2005 Kashmir earthquake, the seismic performance of stone masonry buildings was found to be poor, which was the primary source of fatalities. Unreinforced brick masonry (URBM) buildings, however, performed well even in severely jolted areas. The performance of URBM could have been much better if the affected buildings were constructed by using proper guidelines. Taking lessons from the disaster, an experimental investigation, based on typical geometry and precompression levels of the URBM shear walls in the affected region, was conducted to evaluate their seismic performance. Twelve walls were tested in the in-plane direction using quasi-static cyclic loading. First-story drift ratios for various performance levels in URBM buildings are proposed. The influences of relative precompression level and aspect ratio on the damage pattern, ultimate drift ratio, and equivalent viscous damping of the walls are examined.
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Bilgin, Hüseyin, Marsed Leti, Rafael Shehu, Hayri Baytan Özmen, Ahmet Hilmi Deringol, and Rrapo Ormeni. "Reflections from the 2019 Durrës Earthquakes: An Earthquake Engineering Evaluation for Masonry Typologies." Buildings 13, no. 9 (August 31, 2023): 2227. http://dx.doi.org/10.3390/buildings13092227.

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Two earthquakes struck the NW region of Albanian territory on 21 September 2019 (Mw = 5.6) and on 26 November 2019 (Mw = 6.4). The epicenters of the seismic activity were located offshore NW Durrës, one of Albania’s most populated cities, located 30 km from the capital Tirana. Various aftershocks followed subsequently. While there were no reported injuries, a number of buildings sustained significant damage near the epicenter following the initial event. Subsequently, during the second event, there was loss of life and extensive damage to civilian structures, resulting in multiple collapses. This study focuses on the earthquake damages observed in residential and public buildings in the earthquake-affected region. The earthquakes predominantly affected low-rise masonry buildings, while the newly constructed RC structures built according to the latest seismic rules were almost unaffected. The commonly encountered building typologies in the region, together with photos showing the amount of destruction are presented here. As observed by the authors during the reconnaissance visit to the stricken area, examples of various damage patterns are presented, along with a technically substantiated description of the reasons for those damages. Although modern buildings during recent earthquakes in the region show acceptable performance, the detailed surveys from the Durrës Earthquakes showed that there is still an important level of deficiency in current masonry buildings built by conventional methods and materials. This problem may reoccur in future earthquakes that may hit other rural regions of Albania, which must be focused on systematically in the near future.
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Tso, W. K., and T. J. Zhu. "Implications of the 1988 Saguenay earthquake on Canadian seismic strength specification." Canadian Journal of Civil Engineering 18, no. 1 (February 1, 1991): 130–39. http://dx.doi.org/10.1139/l91-015.

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The November 25, 1988, Saguenay earthquake was the most significant seismic event in eastern North America over the last 50 years. Based on strong ground motion records from this earthquake, an analytical study was undertaken to evaluate the seismic design base shear provisions of the National Building Code of Canada for buildings located in the eastern regions of Canada. In light of the observed damage to masonry structures in the epicentral region, emphasis was placed on the evaluation of the codified minimum seismic strength for masonry structural systems. Key words: earthquake, ground motion, seismic design strength, code, masonry, buildings, damage, ductility.
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5

Sucuoğlu, HalÛk, Ahmet Yakut, Aydan Özmen, and Joseph Kubin. "Seismic Risk Prioritization and Retrofit Cost Evaluation of Code-Deficient RC Public Buildings in Turkey." Earthquake Spectra 31, no. 1 (February 2015): 601–14. http://dx.doi.org/10.1193/040513eqs092t.

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A risk prioritization procedure is developed for deficient concrete public buildings within the scope of a seismic risk reduction program. The main purpose is identifying public buildings with high damage risk in a region for efficient retrofit investments. Regularity of structural systems and repeatability of deficiencies in public buildings provide opportunities for developing simple and reliable assessment procedures. The proposed procedure is based on calculating a risk index from the comparison of lateral load demand to lateral load capacity at the critical story of a building, and then prioritize the buildings in accordance with their risk index. Final decision for retrofitting is made with reference to the ratio of retrofitting cost versus demolishing and rebuilding cost. It has been shown on a sample of 70 retrofitted public buildings that the retrofitting cost ratio of deficient buildings is independent of risk level, age, height, floor area and concrete quality.
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Ademović, Naida, Daniel V. Oliveira, and Paulo B. Lourenço. "Seismic Evaluation and Strengthening of an Existing Masonry Building in Sarajevo, B&H." Buildings 9, no. 2 (January 22, 2019): 30. http://dx.doi.org/10.3390/buildings9020030.

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A significant number of old unreinforced load-bearing masonry (URM) buildings exist in many countries worldwide, but especially in Europe. In particular, Bosnia and Herzegovina has an important stock of masonry buildings constructed from the 1920s until the 1960s without application of any seismic code, due to their nonexistence at that time. With the 1963 Skopje earthquake, this class of buildings were shown to be rather vulnerable to seismic actions, which exhibited serious damage. This article assesses the seismic vulnerability of a typical multi-storey residential unreinforced load-bearing masonry building located in the heart of Sarajevo, which may be exposed to an earthquake of magnitude up to 6 by Richter’s scale. The buildings of this kind make up to 6% of the entire housing stock in the urban region of Sarajevo, while in Slovenia this percentage is much higher (around 30%). The analysis of a typical building located in Sarajevo revealed its drawbacks and the need for some kind of strengthening intervention to be implemented. Additionally, many structures of this type are overstressed by one to two additional floors (not the case of the analyzed structure) constructed from 1996 onwards. This was due to the massive population increase in the city center of Sarajevo and further increased the vulnerability of these buildings.
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Wahid, Chowdhury Mohammad Shams, Muzammil Al Rahman, Syed Akhtaruzzaman, and Md Jahir Bin Alam. "A PROPOSAL FOR SEISMIC VULNERABILITY ASSESSMENT OF PRE-ENGINEERED STEEL BUILDINGS IN BANGLADESH USING SIMPLIFIED JAPANESE INDEX METHOD." ASEAN Engineering Journal 13, no. 2 (May 31, 2023): 61–67. http://dx.doi.org/10.11113/aej.v13.18838.

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At present seismic evaluation of structures has become very crucial in Bangladesh as the country is in earthquake prone region. Lots of studies have been performed and many methods have been proposed for the rapid seismic evaluation of reinforced concrete (RC) buildings. Over the past two decades the country has been going through an important evolution which is rapid construction of pre-engineered steel buildings (PEB). Unfortunately, there has not been a single research work done or any method proposed for the seismic evaluation of these type of structures. In this work, simplified structural evaluation which is based on Japanese Index Method has been used for the seismic evaluation of 05 existing PEB steel structure. The structural seismic index of the building, IBS has been compared with the seismic judgement index IBSO which is a function of seismic zone co-efficient, structural importance coefficient and normalized acceleration response spectrum. The service load index IBD has also been compared with service load judgement indices, IBD01 and IBD02 which has been calculated from the material strength. For example, from the judgement of one building at ground floor, 0.5IBSO ≦ IBS＜IBSO and IBD02＜IBDhave been observed hence immediate detail evaluation recommended.
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Sisti, Romina, Marco Di Ludovico, Antonio Borri, and Andrea Prota. "Seismic performance of strengthened masonry structures: actual behaviour of buildings in Norcia and Campi Alto during the 2016 Central Italy seismic sequence." Bulletin of Earthquake Engineering 20, no. 1 (October 19, 2021): 321–48. http://dx.doi.org/10.1007/s10518-021-01248-0.

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AbstractThe structural response of unreinforced masonry buildings designed for gravity load only or with reference to obsolete seismic provisions is widely studied in the literature in order to define proper strengthening strategies and solution to mitigate the seismic risk. However, the critical analysis of the effectiveness of past used strengthening solution is still lacking. To fill such gap, the present study deals with the evaluation of the seismic performances of buildings in Campi Alto struck by the 2016 central Italy seismic sequence. The behaviour of buildings in Campi Alto is compared with that of buildings in Norcia. A large part of the buildings in these two towns was strengthened between 1980 and 2000 during the reconstruction processes following previous earthquakes which occurred in 1979 and 1997. However, the strengthened buildings in Norcia reported limited damage while a significant and widespread level of damage was detected on several strengthened buildings in the hamlet of Campi Alto. This study focuses on the buildings in Campi Alto with the aim of investigating on the reasons of their unsatisfactory behaviour. Thus, the seismic action experienced by buildings in Norcia and Campi Alto is initially compared and the main vulnerabilities of these buildings are also evaluated. Then, 20 projects of strengthening interventions submitted to the Civil Engineering Department of the Umbria Region between 1984 and 2012 have been herein analysed and discussed in order to focus on the effectiveness of the strengthening solution adopted in the past. The analyses of such projects and of the empirical damage detected after the 2016 seismic sequence is a unique opportunity to derive useful information for future applications.
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Blagojević, Predrag, Svetlana Brzev, and Radovan Cvetković. "Simplified Seismic Assessment of Unreinforced Masonry Residential Buildings in the Balkans: The Case of Serbia." Buildings 11, no. 9 (September 3, 2021): 392. http://dx.doi.org/10.3390/buildings11090392.

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The paper presents a study on the existing low-rise unreinforced masonry (URM) buildings constructed in the period from 1945 to 1980 in Serbia and neighbouring countries in the Balkans. Buildings of this typology experienced damage in a few earthquakes in the region, including the 2010 Kraljevo, Serbia earthquake and the 2020 Petrinja, Croatia earthquake. The focus of the study is a seismic design approach for Simple masonry buildings according to Eurocode 8, Part 1, which is based on the minimum requirements for the total wall area relative to the floor plan area, which is referred to as Wall Index (WI) in this paper. Although the intention of Eurocode 8 is to use WI for design of new buildings, the authors believe that it could be also used for seismic assessment of existing masonry buildings in pre- and post-earthquake situations. A study on 23 URM buildings damaged in the 2010 Kraljevo, Serbia earthquake has been presented to examine a relationship between the WI and the extent of earthquake damage. Seismic evaluation of a typical 3-storey URM building damaged in the 2010 earthquake was performed according to the requirements of seismic design codes from the former Yugoslavia and Eurocode 8.
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Ventura, Carlos E., W. D. Liam Finn, and Norman D. Schuster. "Seismic response of instrumented structures during the 1994 Northridge, California, earthquake." Canadian Journal of Civil Engineering 22, no. 2 (April 1, 1995): 316–37. http://dx.doi.org/10.1139/l95-045.

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This paper presents an overview of strong motion records obtained from instrumented structures during the 1994 Northridge earthquake. It describes the behaviour of buildings, bridges, and dams that have been instrumented by the major strong motion instrumentation networks operating in California and highlights important features of the most significant structural motions recorded during the earthquake. The structural damage observed during a reconnaissance visit to the affected areas by the earthquake is correlated with preliminary analyses of the recorded motions. Detailed discussions of the dynamic behaviour of two instrumented reinforced concrete buildings that suffered damage during the earthquake are presented. The behaviour of these buildings during previous earthquakes is also examined. This paper and the companion paper on ground motions provide comprehensive information about instrumental records obtained in the region affected by the earthquake. Key words: earthquake engineering, structural response, strong motion instrumentation, damage evaluation, buildings, bridges, dams, structural dynamics, acceleration, amplification.
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Book chapters on the topic "Seismic evaluation of buildings in Delhi region"

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Cherubini, A., G. Cifani, L. Corazza, A. Martinelli, G. Di Pasquale, G. Orsini, and C. Spuri. "The performance of the damage survey and safety evaluation form in Marche Region." In Seismic Damage to Masonry Buildings, 113–19. Routledge, 2018. http://dx.doi.org/10.1201/9780203740040-10.

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Donmez, Cemalettin, and Murat Altug Erberik. "A Case Study for Seismic Assessment and Restoration of Historic Buildings." In Handbook of Research on Seismic Assessment and Rehabilitation of Historic Structures, 381–400. IGI Global, 2015. http://dx.doi.org/10.4018/978-1-4666-8286-3.ch013.

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This chapter focuses on seismic assessment and restoration of one of the numerous historical buildings in Turkey; the Arditi Residence in Urla, Izmir. It is a 150 years old two story masonry building located in a seismically active region. From the structural point of view, the building can be regarded as a mixed system since three different techniques had been used during the construction. The Arditi Residence has been investigated in three stages: preliminary evaluation, seismic performance assessment and intervention. The building has been observed to possess serious deficiencies, which are not easy to handle due to the complexity of the construction system. On the other hand, the proposed intervention strategies should have the minimal impact on the historic information building carrying and provide a certain level of safety against the seismic demands. Overall, the chapter presents a contribution to seismic assessment and restoration of historical structures on the basis of Arditi Residence, a unique historical building with serious problems in an earthquake-prone region.
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Conference papers on the topic "Seismic evaluation of buildings in Delhi region"

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Raghucharan, M. C., and Surendra Nadh Somala. "Generating Site-Specific Ground Motions for Delhi Region for Seismic Vulnerability Assessment of Buildings—Promoting Disaster Resilient Communities." In ASCE India Conference 2017. Reston, VA: American Society of Civil Engineers, 2018. http://dx.doi.org/10.1061/9780784482032.030.

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Caprili, S., F. Mangini, and W. Salvatore. "Evaluation of structural safety and seismic vulnerability of historical masonry buildings: studies and applications in the Tuscany Region." In STREMAH 2015. Southampton, UK: WIT Press, 2015. http://dx.doi.org/10.2495/str150311.

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Hassan, Waqar, Naveed Anwar, Pramin Norachan, and Fawad A. Najam. "The Seismic Performance Evaluation of RC High-rise Buildings Designed to Various Building Codes." In IABSE Conference, Kuala Lumpur 2018: Engineering the Developing World. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2018. http://dx.doi.org/10.2749/kualalumpur.2018.0427.

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<p>This study evaluates and compares the expected seismic performance of a high-rise building when designed according to various international building codes. Using a 40-story reinforced concrete (RC) case study building, the comparison among the three most widely used building codes (ACI 318/ASCE 7-10, BS 8110 and EC-2/EC-8) is presented in terms of structural design and seismic performance. The case study building has a dual structural system (moment-resisting frame and shear walls) and is assumed to be located in a highly active seismic region. First, its linear elastic model was created and analysed to perform the code-based design for gravity and seismic loads. The building is designed separately for three codes following their prescribed load combinations, cracked stiffness modifiers and seismic design factors. Then, the detailed performance evaluation of case study building (separately designed for each building code) was carried out using the nonlinear response history analysis (NLRHA) under different input ground motions. Based on obtained results, a comparison of three building codes is presented in terms of the design, seismic performance and economic considerations.</p>
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Rekvava, Paata. "Seismic Reliability Analysis of Structural Systems." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-10686.

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A method is presented for the evaluation of the seismic reliability function of realistic structural systems. The method is based on a preliminary simulation involving three-dimensional nonlinear time history analysis of the soil-interface-building system. The design procedure is performed to establish the probabilistic characterization of the demands on the structure, followed by the solution of system reliability problem with correlated demands and capacities. The Structural behavior is evaluated by means of the methodology of Performance-Based Seismic Design (PBSD). This study has taken into account the stochastic nature of the spatial ground motion in Tbilisi region. The method is demonstrated with an application to a 3D RC Buildings subjected to seismic excitation for the specified hazard at the site. The developed method and obtained results can be used in seismic risk study for new buildings of examined type under design, as well as for existing RC buildings of old generation for future seismic activity.
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Furuya, Osamu, Kiyotaka Takito, Hiroshi Kurabayashi, Kunio Sampei, and Koji Yamazaki. "Study on Multifunctional Base Isolation System Using Air-Floating Technique." In ASME 2020 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/pvp2020-21743.

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Abstract Vibration isolation devices are generally applied to equipment that dislikes vibration installed in buildings. Since the vibration isolator is intended for small vibration input, the damage has been frequently confirmed with excessive vibration input such as an huge earthquake motion. Therefore, the development of a seismic isolation device with a vibration isolation function is desired for important equipment and expensive manufacturing equipment. However, the vibration region targeted by the vibration isolator and the vibration region of the seismic input are at completely different levels. In this study, the authors propose a seismic isolation system using air floating technique to cope with such different vibration levels. In this paper, basic concept, basic performance, preliminary performance evaluation by nonlinear time response analysis, and performance evaluation by shaking table test.
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Stanko, Davor, Tvrtko Korbar, Jakov Stanislav Uglešić, Iva Lončar, Mario Gazdek, and Snježana Markušić. "EVALUATION OF THE LOCAL SITE EFFECTS OF THE UNESCO WORLD HERITAGE SITE OLD CITY OF DUBROVNIK (CROATIA)." In 2nd Croatian Conference on Earthquake Engineering. University of Zagreb Faculty of Civil Engineering, 2023. http://dx.doi.org/10.5592/co/2crocee.2023.35.

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The most seismically active region in Adriatic part of Croatia is the SE coastal region that have numerous cultural heritage sites. Therefore, it is important to estimate seismic risk for cultural heritage sites and to develop procedures for seismic risk assessment. These are the goals of the research project Seismic Risk Assessment of Cultural Heritage Buildings in Croatia (SeisRICHerCRO) funded by the Croatian Science Foundation. Local site effects, a known problem in earthquake engineering, play significant role in earthquake damage distribution. The old town of Dubrovnik is particularly vulnerable in terms of local site effects because the old city is built on three geomorphological and geological entities: southern bedrock ridge, central filled and flattened part (former sea embayment), and northern bedrock ridge. Apart from the last devastating historical earthquake in Dubrovnik area in 1667 of M~7), instrumentally recorded strong earthquake on 15 April 1979 M6.8 with mainshock at the epicentral distance of 105 km from Dubrovnik caused strong damage effects in the wider Dubrovnik area (intensity of VII °MSK) with incalculable damage to cultural and historical objects the old town Dubrovnik The main aim of this study is mapping of local site effects variations in the old city of Dubrovnik using old investigation data as a starting point from 1980’s, after 1979 Reconstruction of Dubrovnik. Data quality and spatial uncertainty brough by older equipment used in 1980’s compared to using novel and sophisticated geophysical research methods followed by new geological investigations will significantly improve planning and reconstruction of Dubrovnik following new microzonation maps. Definition of the seismicity and variations of the local site conditions are one of the inevitable phases of the complex process of repair and strengthening of existing structures in the old town Dubrovnik together with design seismic parameters and the seismic risk level of building inventory as a basis to define the necessary preventive measures against expected strong earthquakes in the future.
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