The development of seismic zones and the evaluation of lateral loadings for earthquake resistant design of buildings in Papua New Guinea

A recently published seismic zoning map of Papua New Guinea does not correlate particularly well with either presentday seismicity or tectonic models of the region. Several reasons are given and a modified version of the map is presented for discussion and as a replacement in the Building Code.

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The development of seismic zones and the evaluation of lateral loadings for earthquake resistant design of buildings in Papua New Guinea

Bulletin of the New Zealand Society for Earthquake Engineering ◽

10.5459/bnzsee.15.3.123-140 ◽

1982 ◽

Vol 15 (3) ◽

pp. 123-140

Author(s):

R. D. Jury ◽

J. P. Hollings ◽

I. A. N Fraser

Keyword(s):

Papua New Guinea ◽

Structural Damage ◽

New Guinea ◽

Structural Type ◽

Seismic Zones ◽

Earthquake Resistant Design ◽

Earthquake Resistant ◽

Stage Process ◽

Strength And Stiffness ◽

Sufficient Strength

The basis for modern earthquake resistant design can be considered to be a two stage process the objectives of which can be summarised as follows: Provide the structure with sufficient strength and stiffness to resist moderate earthquakes so that the frequency of occurrence of structural and non-structural damage is acceptably low, and Ensure that the probability of collapse of the structure and the risk to life in a severe earthquake is acceptably low. The first stage can be satisfied by seismic zoning to ensure that the risk of damage to structures of similar structural type is acceptable and approximately uniform over the whole country and by restricting interstorey deflections under moderate earthquakes. The second stage can be satisfied by the use of structural type factors. In particular, this study explains how these principles were used to develop seismic zones and evaluate lateral loadings for Earthquake Resistant Design for Buildings in Papua New Guinea.

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ASSESSMENT OF KNOWLEDGE AND AWARENESS REGARDING MRT OF NBC; A CASE OF TILOTTAMA MUNICIPALITY, NEPAL

International Journal of Research -GRANTHAALAYAH ◽

10.29121/granthaalayah.v8.i7.2020.545 ◽

2020 ◽

Vol 8 (7) ◽

pp. 50-66

Author(s):

Sandeep Regmi ◽

Anjay Mishra

Keyword(s):

Sampling Method ◽

Total Population ◽

Tracking System ◽

Building Code ◽

Construction Process ◽

Building Permits ◽

Technical Requirements ◽

Earthquake Resistant Design ◽

Earthquake Resistant ◽

Private Housing

The study was carried out to analyze the compliance status of NBC and Byelaws in private housing construction of Tilottama Municipality. The permitted building samples with all necessary documents is taken for research purpose to trace the compliance status of National Building Code and Byelaws in construction of private housing. Field verification and review of approved drawings and building permits of 51 numbers of households from the total population of 323are selected by purposive sampling method to check the compliance status of NBC and Byelaws provisions. The samples are taken from both ProfessionallyEngineeredBuildingsandMandatoryruleofthumb-(NBC205) buildings constructed in the Tilottama Municipality. From the study, it is found that after the earthquake concerned stakeholders possess good knowledge of earthquake and its consequences. Knowledge regarding the earthquake resistant design and construction process is found fairly adequate. The perspective of concerned stakeholders towards building code and byelaws are positive. Out of 51 households surveyed, only 7 of the buildings have not complied with all the technical requirements of NBC whereas the building byelaws provisions are found to be effectively implemented by 44 buildings. The adopted process and existing mechanism for the implementation of building code and byelaws by the municipality is not effective as the tracking system of building permit process is ineffective.

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Seismic hazard in the design of oil and gas pipelines

Facta universitatis - series Architecture and Civil Engineering ◽

10.2298/fuace1102231z ◽

2011 ◽

Vol 9 (2) ◽

pp. 231-240

Author(s):

Slavko Zdravkovic ◽

Biljana Mladenovic ◽

Dragan Zlatkov

Keyword(s):

Seismic Hazard ◽

Natural Hazard ◽

Oil And Gas ◽

Ground Vibration ◽

Seismic Zoning ◽

Return Periods ◽

Horizontal Acceleration ◽

Earthquake Resistant Design ◽

Earthquake Resistant ◽

Seismic Forces

Criteria that are adopted in earthquake resistant design of pipelines and gas lines have to take into account seismic movements and seismic generated forces that are of significantly high probability level of appearance along the length of pipeline. A choice of criteria has to include an acceptable level of seismic hazard, while design criteria should be calculated. Seismic hazard is defined as a part of natural hazard and means probability of appearance of earthquake of corresponding characteristics in certain time and place. For design needs and calculation of influences caused by seismic forces the most important is seismic hazard of maximal horizontal acceleration due to ground vibration during earthquake. The methodology of seismic hazard calculation as base for micro seismic zoning is presented in the paper. It is shown calculation of seismic hazard of maximal horizontal acceleration due to ground vibration that is applied for 985 points at the territory of Republic of Serbia, based on which maps for return periods of 50 and 200 years are drawn.

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Seismotectonic model and probabilistic seismic hazard assessment for Papua New Guinea

Bulletin of Earthquake Engineering ◽

10.1007/s10518-020-00966-1 ◽

2020 ◽

Vol 18 (15) ◽

pp. 6571-6605 ◽

Cited By ~ 1

Author(s):

Hadi Ghasemi ◽

Phil Cummins ◽

Graeme Weatherill ◽

Chris McKee ◽

Martyn Hazelwood ◽

...

Keyword(s):

Seismic Hazard ◽

Papua New Guinea ◽

Hazard Assessment ◽

Seismic Hazard Assessment ◽

Seismic Source ◽

New Guinea ◽

Building Code ◽

Tectonic Activity ◽

Probabilistic Seismic Hazard Assessment ◽

Probabilistic Seismic Hazard

Abstract Papua New Guinea (PNG) lies in a belt of intense tectonic activity that experiences high levels of seismicity. Although this seismicity poses significant risks to society, the Building Code of PNG and its underpinning seismic loading requirements have not been revised since 1982. This study aims to partially address this gap by updating the seismic zoning map on which the earthquake loading component of the building code is based. We performed a new probabilistic seismic hazard assessment for PNG using the OpenQuake software developed by the Global Earthquake Model Foundation (Pagani et al. in Seism Res Lett 85(3):692–702, 2014). Among other enhancements, for the first time together with background sources, individual fault sources are implemented to represent active major and microplate boundaries in the region to better constrain the earthquake-rate and seismic-source models. The seismic-source model also models intraslab, Wadati–Benioff zone seismicity in a more realistic way using a continuous slab volume to constrain the finite ruptures of such events. The results suggest a high level of hazard in the coastal areas of the Huon Peninsula and the New Britain–Bougainville region, and a relatively low level of hazard in the southwestern part of mainland PNG. In comparison with the seismic zonation map in the current design standard, it can be noted that the spatial distribution of seismic hazard used for building design does not match the bedrock hazard distribution of this study. In particular, the high seismic hazard of the Huon Peninsula in the revised assessment is not captured in the current building code of PNG.

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Determination of Time Period of Vibration Effect on Seismic Performance of Building

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.330.878 ◽

2013 ◽

Vol 330 ◽

pp. 878-883 ◽

Cited By ~ 1

Author(s):

Salimi Firoozabad Ehsan ◽

K. Rama Mohan Rao ◽

Bagheri Bahador

Keyword(s):

Seismic Performance ◽

Ground Motions ◽

Building Code ◽

Empirical Formulas ◽

Seismic Code ◽

Vibration Effect ◽

Earthquake Resistant Design ◽

Time Period ◽

Earthquake Resistant

Most seismic codes specify empirical formulas to obtain the fundamental period of buildings. The equations specified in present IS codes, are according to the available data on the time period of buildings measured from their recorded accelerograms. Shear-wall dominant reinforced concrete buildings, constructed, using codes specification are commonly built in different countries, facing a substantial seismic risk, in spite of their high resistance against ground motions. Current seismic code provisions including the Uniform Building Code (International Conference of Building Officials, Whittier, CA, 1997) and the Indian Seismic Code (Criteria for earthquake resistant design of buildings, fifth revision, 2002) are considered to evaluate the effect of time period on seismic behavior of building.In this study, time period obtained by code formulas are compared with those obtained by modal analysis in SAP2000. Also the top story displacement (as an adequate parameter of determination the seismic performance of building) correspond to the values of mentioned time period are estimated using uniform building code and software respectively. It is observed that current empirical equation for calculating the time period of RCC buildings is rather inaccurate. Also it is shown that the time period has very effective influence on seismic performance of building.

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RECOMMENDATIONS ON THE DEVELOPMENT OF PROBABILITY MAPS OF SEISMIC ZONING OF THE TERRITORY OF KAZAKHSTAN BASED ON MODERN METHODOLOGY

NEWS of National Academy of Sciences of the Republic of Kazakhstan ◽

10.32014/2020.2518-170x.152 ◽

2020 ◽

Vol 6 (444) ◽

pp. 236-244

Author(s):

D. K. Suleyev ◽

◽

N. B. Uzbekov ◽

A. B. Sadykova, ◽

N. V. Silacheva ◽

...

Keyword(s):

Seismic Hazard ◽

Hazard Assessment ◽

Seismic Hazard Assessment ◽

Seismic Intensity ◽

Eurocode 8 ◽

Seismic Zoning ◽

New Approach ◽

Earthquake Resistant Design ◽

Earthquake Resistant ◽

Scale Levels

Minimization of fatalities, material damage, and socio-economic destruction due to earthquakes depends on reliable estimates of seismic hazard. The paper presents the methodological foundations of seismic hazard assessment developed for Kazakhstan, the basic requirements and the list of work required to carry out seismic zoning of territories at different scale levels – general, detailed and microzoning. They were tested during the creation of Maps of General Seismic Zoning of the Territory of Kazakhstan, which were included in regulatory documents in 2017 and Maps of Seismic Microzoning of Almaty on a new methodological basis. A new approach to seismic hazard assessment is based on a methodology that complies with the main provisions of Eurocode 8 “Design of structures for earthquake resistance”, meets the needs of earthquake-resistant design and construction, is probabilistic and allows to assess seismic hazard not only in seismic intensity according to MSK-64(K) scale common for Kazakhstan, but also in quantitative parameters – peak ground accelerations. For each type of seismic zoning, general objectives are defined that can be solved with consideration of the scale of developed maps.

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