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All Journal Construction and Material Journal INTAN Jurnal Penelitian Tambang
Indra Birawaputra
Universitas Papua
Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Engineering

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PENILAIAN KERENTANAN BANGUNAN DI KABUPATEN MANOKWARI SELATAN AKIBAT GEMPA BUMI Yoga Charol Vincenthius Tethool; Indra Birawaputra; Mayang K. F. Putri; Natalia E. Safkaur; Veronika Y. Ohoilulin; Geraldo R. Rombe
Construction and Material Journal Vol. 3 No. 3 (2021): Construction and Material Journal Vol. 3 No. 3 November 2021
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v3i3.4232

Abstract

Earthquake is a natural occurrence in which energy is released and propagated from the earth to the ground surface. The effects of the earthquakes include failure of building, landslides, tsunamis and so on. Mitigation actions are required to reduce the number of people killed or injured as a result of earthquakes. Assessing the vulnerability of buildings to earthquakes is one of the mitigation efforts. The Hazus Method is used to assess the vulnerability of a building. This method requires information such as: building typology and seismic activity at the location to be studied. The goal of this study is to assess the level of earthquake susceptibility based on the structure type in Manokwari Selatan Regency. Concludingly, the building typology in Manokwari Selatan Regency will be divided into five categories of vulnerability, specifically: no damage, light damage, moderate damage, major damage, and collapse. Based on observations, there are several typologies of the existing buildings in the Manokwari Selatan Regency, namely: wooden light frames (W1), Steel Moment Frame (S1L), Concrete Moment Frame C1L) and Reinforced Masonry Bearing (RM1L). The results of the analysis show that the typology Steel Moment Frame (S1L) has the possibility of light, moderate, heavy damage, collapse and no damage, respectively 7.13%, 32.66%, 39%, 18.13%, and 3.07%; the typology Concrete Moment Frame (C1L) are 8.39%, 34.91%, 36.84%, 16.35%, and 3.51% respectively; the typology wooden light frames (W1) are 18.16%, 47.89%, 21.18%, 10.03%, and 2.74%; the typology Reinforced Masonry Bearing (RM1L) has a probability of 10.76%, 34.45%, 36.06%, 13.14%, and 5.59%. Keywords: Earthquake, Building Typology, Building Vulnerability, Hazus Method.
PENERAPAN GAME THEORY DALAM PEMASARAN FRAKSI SIRTU PADA PT X DAN PT Y Arif Setiawan; Djusman Bin Aziz; Indra Birawaputra; Bambang Triyanto; Ismiyati
INTAN Jurnal Penelitian Tambang Vol. 5 No. 1 (2022): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (410.094 KB) | DOI: 10.56139/intan.v5i1.105

Abstract

The increasing demand for sand and stone materials has resulted in competitions between mining companies in order to meet the need of the material for construction activities, from which it results in conflicts between two parties, two people, or groups of people. Part of the mathematical programming technique used to analyze the decision-making process of competition between two or more parties is Game Theory. The application of game theory is to produce the best strategy that will be used by a company to optimize the marketing of gravel fraction. Instruments or tools used in the research is a questionnaire that includes improving product quality, affordable pricing, improving service quality, establishing an effective corporate work process, and determining the place of inventory. The result is arranged in the form of a payoff matrix and analyzed using the Game Theory, that indicates the competition between PT X and PT Y. The analysis results show that the implementation of those strategies is the best way that can optimize marketing of gravel fraction, so that it can improve the position of profit or loss got saddle point from competition between PT X and PT Y, which is 11. The results also confirm the increase of profit of PT X, from 10 to 11 by applying effective work processes (probability 5:1). In addition, the loss of PT Y could decrease from 12 to 11 by applying strategies to improve the product quality of gravel fraction and determining the stock of the fraction (probability 1:1).
Co-Authors Arif Setiawan Bambang Triyanto Djusman Bin Aziz Geraldo R. Rombe Ismiyati Mayang K. F. Putri Natalia E. Safkaur Veronika Y. Ohoilulin