scholarly journals PERBANDINGAN KERUSAKAN AKTUAL DAN PRAKIRAAN PADA BANGUNAN TEMBOK TANPA PERKUATAN AKIBAT GEMPA

Teknisia ◽  
2021 ◽  
Vol XXVI (1) ◽  
Author(s):  
Jafar . ◽  
Keyword(s):  
Experimental Data ◽  
Field Survey ◽  
Unreinforced Masonry ◽  
Central Java ◽  
Loss And Damage ◽  
Earthquake Resistant ◽  
The Us ◽  
Future Earthquake ◽  
Potential Damage ◽  
Actual Damage

On April 18, 2018, an earthquake hit Banjarnegara Regency, Central Java. The earthquake was measured M4.4 at a depth of 4 km and caused damages to buildings in several villages within Kalibening District. Predicting the future earthquake events is difficult. However, it is possible to estimate the potential damage caused by an earthquake event. FEMA has developed a methodology called HAZUS to estimate the potential loss and damage caused by earthquakes. This study compared the level of actual damage to buildings subjected to the 2018 Banjarnegara earthquake with the estimated damage to buildings obtained using HAZUS. The real damage is obtained from the field survey while the estimated damage is obtained from the HAZUS modeling. The object of this research is the unreinforced masonry low-rise buildings (URML) in Kasinoman Village, one of the villages that suffered the most subjected to the 2018 Banjarnegara Earthquake. The result of this study indicates the actual damage has a higher mean damage ratio (20,40 %) compared to the estimated damage (11.66%). HAZUS is developed according to the performance and experimental data of the buildings in the US therefore it might not be compatible with the building in Indonesia, especially surveyed buildings in Banjarnegara. The reason is the buildings in the US fulfilled the earthquake-resistant building provision meanwhile the surveyed buildings did not.

scholarly journals DAMPAK PEMBERITAAN PENYALAHGUNAAN FORMALIN DI SEKTOR KELAUTAN DAN PERIKANAN

2017 ◽  
Vol 2 (1) ◽  
pp. 83
Author(s):  
Yayan Hikmayani ◽  
Siti Hajar Suryawati ◽  
Agus Heri Purnomo ◽  
Zahri Nasution
Keyword(s):  
Policy Analysis ◽  
Field Survey ◽  
Positive Impact ◽  
Secondary Data ◽  
Fish Products ◽  
On Demand ◽  
Central Java ◽  
Field Notes ◽  
Negative Impacts ◽  
The Impact

Riset dampak pemberitaan penyalahgunaan formalin di sektor kelautan dan perikanan telah dilakukan pada tahun 2006. Riset ini bertujuan untuk melihat sejauhmana dampak yang ditimbulkan akibat pemberitaan tentang penyalahgunaan formalin di sektor kelautan dan perikanan pada produsen dan konsumen. Pendekatan studi digunakan melalui analisis kebijakan. Data primer dan sekunder dirumuskan sesuai keperluan analisis kebijakan ini yaitu penelusuran terhadap dampak pemberitaan formalin terhadap produsen dan konsumen di sektor kelautan dan perikanan. Kemudian data hasil verifikasi dan survey lapang yang berasal dari kuesioner dan catatan lapangan (field notes) diolah secara deskriptif untuk mendapatkan interpretasi logis. Lokasi studi ditetapkan secara sengaja (purposive) dengan kriteria tersebut merupakan sentra penanganan dan pengolahan produk perikanan dan diberitakan banyak menggunakan bahan kimia formalin yaitu Jawa Barat (Karawang), Jawa Tengah (Semarang), DKI Jakarta dan Bandar Lampung. Hasil studi menunjukkan bahwa bagi produsen yang meliputi nelayan, pengolah dan pembudidaya ikan dampak negatif dari pemberitaan formalin adalah menurunnya permintaan ikan hasil tangkapan dan olahan sehingga pendapatan nelayan dan pengolah menjadi berkurang, sedangkan bagi konsumen dampak negatifnya konsumen jadi takut mengkonsumsi ikan laut dan hasil olahan sehingga lebih memilih mengkonsumsi tempe/tahu dan telur. Dampak positifnya bagi produsen baik nelayan dan pengolah yaitu sebagian dari mereka jadi mengetahui bahwa formalin tersebut membahayakan dan berusaha tidak menggunakan lagi. Dampak positif bagi konsumen bertambah pengetahuan tentang bahaya formalin sehingga mereka akan lebih hati-hati dalam mengkonsumsi ikan dan untuk sementara konsumsi ikan mereka dialihkan ke ikan hasil budidaya yang banyak dijual dalam kondisi hidup. Tittle: The Impact of Announcement on The Mis-used of Formalin in Marine and Fisheries SectorResearch on impact of mis-used of formalin in marine and fisheries sector have been done in 2006. The aim of the research was to show the impact of announcement on the mis-used of formalin to producers and consumers. Policy analysis approach was used as the method of study. Primary and secondary data were formulated accordingly to meet the requirement of the policy analysis, that is impact of media release on both side of producers and consumers. Verified data and field survey processed descriptively to build logical interpretation.The locations of study were specified in purpose to represent the center of handling and processing of fisheries product indicated with formalyn abuse. These location were West Java (Karawang), Central Java (Semarang), DKI Jakarta and Bandar Lampung. The results of study showed that the negative impacts of the news on formalin abuse to the producers were decreasing on demand of catch and processed fish products, which in turn reduce the income of the fisherman and fish processors. On the other side, the consumer shift their preference to other products such as tempe, tofu and eggs. The positive impacts to the fisherman and fish processors were the knowledge of the danger of formalin abuse on their products and they avoid to use the chemical. The positive impact on fish consumers were the awareness on formalin use on health arose and temporary their fish consumption shifted to the aqucultured fish which sold in living form.

Post-Test Investigations of BFBT Critical Power Tests With Trace

2009 ◽  
Author(s):  
Marc Thieme ◽  
Wolfgang Tietsch ◽  
Rafael Macian ◽  
Victor Hugo Sanchez Espinoza
Keyword(s):  
Heat Transfer ◽  
Experimental Data ◽  
Critical Power ◽  
The Core ◽  
Fine Mesh ◽  
The Us ◽  
Post Test ◽  
Trace Model ◽  
Good Agreement ◽  
Transfer Models

The validation of heat transfer models of safety analysis codes such as TRACE is very important due to the strong interaction of the thermal hydraulics parameters with the core neutronics. TRACE is the reference system code of the US NRC for LWR. It is being developed and extensively validated within the international CAMP-program. In this paper, the validation of heat transfer models of TRACE related to the prediction of the critical power is presented. The validation is based on a large number of critical power tests performed in the NUPEC BFBT (BWR Full-Size Fine-Mesh Bundle Tests) facility in Japan. These tests were analysed with the TRACE Version 5 RC 2. The comparison of predictions with the experimental data shows good agreement. The developed TRACE model and the comparison of experimental data with code results will be presented and discussed.

Tinjauan Tentang Populasi Sapi Potong dan Kontribusinya terhadap Kebutuhan Daging di Jawa Tengah

2010 ◽  
Vol 8 (1) ◽  
pp. 32
Author(s):  
T Prasetyo ◽  
D Maharso ◽  
C Setiani
Keyword(s):  
Beef Cattle ◽  
Field Survey ◽  
Meat Consumption ◽  
Meat Production ◽  
Cattle Production ◽  
Observation Study ◽  
Livestock Population ◽  
Central Java ◽  
Input And Output ◽  
Beef Cattle Production

<p>The meat consumption in Indonesia is still relatively low, thus the opportunity to increase beef cattle production (population) as a meat production is relatively high. Therefore, a study on the balance of population in Central Java was carried out in order to analyze the population balance of beef cattle in Central Java. The explorative observation study and field survey was carried out in Banyumas, Purworejo, Jepara, Boyolali regencies and Surakarta, Semarang, Pekalongan. Whereas for Province central java level we used desk study method. The results of the study show that the dynamics of livestock population is determined by fertility, mortality, buchering, input and output of the livestock in certain area. The dynamic of beef cattle in Central Java in the last ten years (1995-2004) has increased 0.91 approximately. However, the increase during 2004-2005 estimated only 0.22%. central Java’s contribution to national meat production is 12.75% with increasing on production during 1997-2004 is 6.56%. this development is higher than the population increasing (0.91%/year). The increase of beef cattle population in Pekalongan is the highest (73.50%) though its population is the lowest (285 beef cattles in 2004). The decrease population is in Semarang (-10.06%) and jepara Regency (-1.68%). Implicitly it show thet in the<br />period, the quantities of buchering beef cattle is over the birth level.</p><p>Key words : Balance population, demand of beef, cattle</p>

Assessment of resistance definitions used for blast analysis of unreinforced masonry walls

2017 ◽  
Vol 8 (1) ◽  
pp. 125-151 ◽  
Author(s):  
Eric M Gagnet ◽  
John M Hoemann ◽  
James S Davidson
Keyword(s):  
Unreinforced Masonry ◽  
Degree Of Freedom ◽  
Masonry Walls ◽  
Army Corps ◽  
Army Corps Of Engineers ◽  
Corps Of Engineers ◽  
Single Degree Of Freedom ◽  
Us Army ◽  
Single Degree ◽  
The Us

Over recent decades, three distinct methods have evolved that are currently being used to generate resistance functions for single-degree-of-freedom analyses of unreinforced masonry walls subjected to blast loading. The degree of differences in these resistance definitions depends on whether the wall is assumed to be simply supported or whether compression arching forces result from rotation restraint at the supports. The first method originated in the late 1960s as a result of both experimental and analytical research sponsored by the US Department of Defense. That method, referred to as the Wiehle method, is the basis of Unified Facilities Criteria 3-340-02 and other derived analytical software such as the Wall Analysis Code developed by the US Army Corps of Engineers, Engineer Research and Development Center. The second method is based on elastic mechanics and an assumed linear decay function that follows and is the basis of the widely used Single-Degree-of-Freedom Blast Effects Design Spreadsheets software distributed by the US Army Corps of Engineers, Protective Design Center. The third method is largely based on concrete and masonry behavioral theories developed by Paulay and Priestly in the early 1990s. This article systematically compares the resistance methodologies for arching and non-arching scenarios, demonstrates the implications by plugging the disparate resistance functions into blast load single-degree-of-freedom models, compares the analytical results to full-scale blast test results, and offers conclusions about the accuracy and efficacies of each method.

Damage Identification of a Beam-Like Structure Using Element Modal Strain Energies and Natural Frequencies

2011 ◽  
Vol 94-96 ◽  
pp. 718-723
Author(s):  
Jian Hua Zhao ◽  
Ling Zhang
Keyword(s):  
Natural Frequencies ◽  
Damage Identification ◽  
Identification Algorithm ◽  
Modal Strain Energy ◽  
Second Stage ◽  
Before And After ◽  
Damage Extent ◽  
Frequency Changes ◽  
Potential Damage ◽  
Actual Damage

A two-step damage identification method based on elemental modal strain energies and natural frequencies has been presented for a beam-like structure. In the first stage, this method makes use of the change of elemental modal strain energy before and after damage to locate the potential damage regions. And in the second stage, a damage identification algorithm based on the frequency changes is developed to calculate the damage extent and further determine the actual damage locations. The performance of the proposed method is numerically demonstrated by a simply supported beam with two damage cases. Results indicate that the method can identify the damage location and quantify the damage severity accurately in a beam-like structure.

scholarly journals Multilayer-HySEA model validation for landslide-generated tsunamis – Part 1: Rigid slides

2021 ◽  
Vol 21 (2) ◽  
pp. 775-789 ◽  
Author(s):  
Jorge Macías ◽  
Cipriano Escalante ◽  
Manuel J. Castro
Keyword(s):  
Experimental Data ◽  
Bottom Topography ◽  
Companion Paper ◽  
Measured Data ◽  
Tsunami Hazard ◽  
Benchmark Problems ◽  
The Us ◽  
Tsunami Hazard Assessment ◽  
Model Equations ◽  
Gpu Architectures

Abstract. This paper is devoted to benchmarking the Multilayer-HySEA model using laboratory experimental data for landslide-generated tsunamis. This article deals with rigid slides, and the second part, in a companion paper, addresses granular slides. The US National Tsunami Hazard and Mitigation Program (NTHMP) has proposed the experimental data used and established for the NTHMP Landslide Benchmark Workshop, held in January 2017 at Galveston (Texas). The first three benchmark problems proposed in this workshop deal with rigid slides. Rigid slides must be simulated as a moving bottom topography, and, therefore, they must be modeled as a prescribed boundary condition. These three benchmarks are used here to validate the Multilayer-HySEA model. This new HySEA model consists of an efficient hybrid finite-volume–finite-difference implementation on GPU architectures of a non-hydrostatic multilayer model. A brief description of model equations, dispersive properties, and the numerical scheme is included. The benchmarks are described and the numerical results compared against the lab-measured data for each of them. The specific aim is to validate this new code for tsunamis generated by rigid slides. Nevertheless, the overall objective of the current benchmarking effort is to produce a ready-to-use numerical tool for real-world landslide-generated tsunami hazard assessment. This tool has already been used to reproduce the Port Valdez, Alaska, 1964 and Stromboli, Italy, 2002 events.

scholarly journals Mobile Blogging as A Mean to Improve Journalism Education

2020 ◽  
Vol 14 (21) ◽  
pp. 38
Author(s):  
Alexandr Rozhkov ◽  
Madina Bulatova ◽  
Larissa Noda
Keyword(s):  
Experimental Data ◽  
Field Survey ◽  
Educational Process ◽  
Practical Significance ◽  
Journalism Education ◽  
Training Process ◽  
Innovative Teaching ◽  
Effective Implementation ◽  
Journalism Students ◽  
Effectiveness Of Training

On the basis of new experimental data, the present paper was aimed at analyzing the effectiveness of training journalism students through the use of blogs. This study included a field survey, during which the impressions of journalism students from the introduction of blogging in the educational process were analyzed. The examination involved 71 undergraduate journalism students of two Russian and two Kazakhstan universities. Innovative teaching strategies were introduced in the training process of mentioned institutions, and the corresponding methods of conducting specialized classes were developed. The experimental data confirmed several hypotheses related to the effectiveness of blogging in journalism education. The practical significance of the obtained results lies in the fact that the proposed approach allows the effective implementation of blogs in journalism training.

scholarly journals OVERVIEW OF THE UNATED STATES AND THE EUROPEAN UNION STANDARDS IN TERMS OF ANALYSIS OF BUILDINGS AND STRUCTURES UNDER SEISMIC WAVE ACTION

2020 ◽  
Vol 16 (3) ◽  
pp. 54-59
Author(s):  
Yuri Nazarov ◽  
Elena Poznyak
Keyword(s):  
European Union ◽  
Wave Propagation ◽  
Seismic Wave ◽  
Seismic Analysis ◽  
Wave Action ◽  
The European Union ◽  
Propagation Models ◽  
Standard Methods ◽  
Earthquake Resistant ◽  
The Us

The article discusses the terms of the US and EU standards (ASCE -7-10, ASCE-4-98, FEMA P-1051/2016, EN 1998-6: 2005) concerning the calculations of earthquake -resistant buildings and structures taking into account wave seismic effectsin the ground base. For the considered standards, wave propagation models and accepted approaches to seismic analysis were investigated; limitations on the use of the standard methods were identified.

scholarly journals Analysis of school damage due to Lombok earthquake on August 2018

2020 ◽  
Vol 156 ◽  
pp. 05019
Author(s):  
M Sofian Asmirza
Keyword(s):  
Building Materials ◽  
Field Survey ◽  
The Other ◽  
Basic Knowledge ◽  
Surrounding Area ◽  
Damage Pattern ◽  
Formal Rule ◽  
Earthquake Resistant ◽  
Lombok Island

The Lombok earthquakes on 5 and 19 August, 2018 have caused fatality and damage buildings including houses and schools. It was reported that the Lombok earthquake had caused damage to at least 606 schools in West Nusa Tenggara. Following the earthquake, the field survey was carried out in a few days to collecting data of damaged schools in Lombok. The global positions of surveyed schools were recorded during the survey to identify the geological and seismicity condition surrounding area. The data were analyzed to understand the cause of the damaged. The damage pattern of the schools is also analyzed and then compared to the other related studies. The damage on the schools in Lombok Island generally has a result of insufficient quality of the building materials. Further, understanding the earthquake resistant building for earthquake prone areas is the most basic knowledge to be informed to the Local Government who has authority to manage the schools. This study suggests for establish Local formal rule of related to minimal requirement for earthquake resistant school building following the microzonation.

Sign in / Sign up

Export Citation Format

Share Document