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EVALUASI RESPON SEISMIK STRUKTUR BANGUNAN UNIVERSITAS TERBUKA PALU TERHADAP GEMPA SULTENG 28 SEPTEMBER 2018 Pinondang Simanjuntak; Sudarno P Tampubolon
Jurnal Rekayasa Teknik Sipil dan Lingkungan - CENTECH Vol. 3 No. 2 (2022): Jurnal Rekayasa Teknik Sipil dan Lingkungan, OKTOBER ISSN 2722-0230 (Online)
Publisher : UKI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/cen.v3i2.4561

Abstract

ABSTRACT The September 28th,2018 Central Sulawesi earthquake collapsed various buildings in Palu. One of the buildings that collapsed due to the earthquake was the structure of the Universitas Terbuka building Palu. Based on a survey to the building site, it can be seen that the collapse occurred in the dominance of melting in the column sections so that the structure was unable to stand upright. Therefore, to find out the main cause of the collapse of the Universitas Terbuka Palu building, it is necessary to analyze the seismic response of the structure. The method used is Spectra Response. Analysis of the calculation of deformation, storey drift and base shear is carried out to determine the stability and the main cause of the collapse of the building. The results showed that the Seismic Response of the Universitas Terbuka Palu building structure was not suitable for earthquake loads with the earthquake zoning of the Palu area determined based on SNI 03-1726-2012. The analysis shows that the deformation that occurs is greater than the allowable deformation and the field conditions indicate that the column is experiencing melting so that it collapses earlier than the beam. Keywords: seismic response spectra, Central Sulawesi earthquake, stability, deformation
Strengthening Communities of Earthquake Victims through a Sanitation Program (Installation/Clean Water Supply and Portable MCK in Kampung Tugu Rw 3 Cibeureum Village, Cugenang, Cianjur) Elferida Sormin; Ulinata; Sudarno P. Tampubolon; Haposan Sahala Raja Sinaga
Asian Journal of Community Services Vol. 2 No. 1 (2023): January, 2023
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/ajcs.v2i1.2570

Abstract

Community Service Incentive Program Community Service Integrated with Freedom to Learn Campus Freedom Based on Key Performance Indicators for 2022 entitled Strengthening Communities for Earthquake Disaster Victims through the Sanitation Program (Procurement of Clean Water and Portable MCK in Kampung Tugu Rw 3 Cibeureum Village, Cugenang, Cianjur) that held from 12th-17th December 2022. This activity aims to ensure the availability of clean water and MCK in tents of residents'. The method used is a descriptive analysis with doing observations, installing water pipes, water pumping machines and MCK, digging, casting the foundation of the water tower scaffolding, assembling and welding the water tower scaffolding then make installation. The results show that clean water and MCK are available and can be used.
Analisis Kerusakan Struktur Bangunan dan Manajemen Bencana Akibat Gempa Bumi, Tsunami, dan Likuifaksi di Palu Sudarno P Tampubolon; I Putu Ellsa Sarassantika; I Wayan Gede Suarjana
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 10 No 2 (2022): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (Juli 2022)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v10i2.3263

Abstract

The strong column-weak beam is a design concept that needs to be implemented and considered in the planning of building structures (high-rise and low-rise buildings). Generally, structural failure occurs at beam-column joints. Such failure occurred due to the lack of attention to good and correct design concepts. The detailing of reinforcement for columns, beams, and beam-column connections has not yet fully implemented the SNI-2847-2019 standard which results in the reinforcement cannot withstand the combination of tensile, compressive, and shear forces that occur during an earthquake. In addition, the incomplete design of strong column-weak beam in building planning causes the building to fail in the column structure when receiving axial forces. The purpose of this study was to analyze the structural damage and the disaster management system applied during the earthquake in Palu. The research is carried out by investigation/survey methods on the study area as well as checking and recording the data about damage condition of buildings and conducting a hammer test (non-destructive test) to get the strength value of the concrete. Testing result showed the compressive strength value of the f’c concrete used is 20 to 48 MPa. In addition, the details of stirrups reinforcement are also not fully understood about their function on beams and columns, which results in the installation of stirrup reinforcement does not meet the criteria for bending angles of 90˚, 135˚, 180˚ and the addition of tensile and compressive reinforcement lengths. The high potential for earthquake hazard causes Palu and its surroundings tend to have an earthquake risk. For this reason, it is necessary to implement disaster mitigation for Palu region, which aims to reduce the number of casualties when natural disasters occur, both human and property loses.
Perbandingan Hasil Analisa Perhitungan Rangka Kuda-Kuda Kayu Dengan Menggunakan SAP-2000 dan Metode Titik Buhul Sudarno P Tampubolon
Praxis : Jurnal Sains, Teknologi, Masyarakat dan Jejaring Vol 5, No 1: September 2022
Publisher : Soegijapranata Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/praxis.v5i1.4443

Abstract

This research is a study that discusses the comparison of the results of the analysis of the calculation of the forces on the wooden framework using the Structure Analysis Program-2000 (SAP-2000) and method of joint. The value of each force of vertical bars, horizontal bars, tensile bars, and compression members at each point of the wooden framework will be calculated on three wooden framework spans with spans of 7m, 9m, and 11m. Comparison of the results of the calculation of the value of the rod force from the two methods will be compared to see the efficiency of the calculation analysis of the two methods. From the results of the calculation of the method of joint and the Analysis of Structure Analysis Program-2000 (SAP-2000) in calculating and analyzing the value of each vertical bar force, horizontal bar, tension member, and compression member, the difference between each rod force is at (0- 0.51) kg. This shows that the calculation analysis using the Structure Analysis Program-2000 (SAP-2000) is faster and more efficient in calculating each bar force.
ANALISA PERFORMA SEISMIC MERU (STRUKTUR BERTINGKAT PAGODA KHAS BALI): PRELIMINARY STUDY I Putu Ellsa Sarassantika; Ida Bagus Gede Parama Putra; Sudarno P Tampubolon; I Gede Dhana Putra Sanjaya
Jurnal Rekayasa Teknik Sipil dan Lingkungan - CENTECH Vol. 4 No. 1 (2023): Jurnal Rekayasa Teknik Sipil dan Lingkungan, APRIL ISSN 2722-0230 (Online)
Publisher : UKI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/cen.v4i1.4817

Abstract

The Meru, a multi-tiered Balinese pagoda in Bali, Indonesia, is investigated for its earthquake-resistant properties in this study. Despite the fact that its upper tier is made of timber frames and panels, and its lower tier is made of masonry walls, the Meru has not suffered significant earthquake damage since its construction in 1968. This paper investigates the Meru's architectural form, structural system, building materials, and dynamic responses to seismic activity. The study focuses on an eleven-tier Meru in the Ulun Danu Batur Temple Kintamani Region, Bali Province, and investigates earthquake resistance using a 2-D Finite Element model and Nonlinear time history dynamic analysis method. The results show that the Meru can withstand the maximum credible earthquake for 2500 years, and the Meru's natural periods and modes have been determined. This study is a preliminary investigation into predicting and monitoring the Meru structure's behavior during earthquakes. To further validate the analysis model, future research could include experimental analysis of both individual components and the overall structure.
TINJAUAN PRODUKTIVITAS PEKERJA PADA DUA PROYEK SERTA FAKTOR YANG MEMPENGARUHINYA Fuk Jin Oei; Sudarno P Tampubolon; Chatarina Finella
Jurnal Rekayasa Teknik Sipil dan Lingkungan - CENTECH Vol. 4 No. 1 (2023): Jurnal Rekayasa Teknik Sipil dan Lingkungan, APRIL ISSN 2722-0230 (Online)
Publisher : UKI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/cen.v4i1.4837

Abstract

Labor productivity is one of the critical success factors in a development project of construction services. This research to analyze the worker’s productivity on two projects undertaken by two contractors with different background. Labor Utilization Rate Value (LUR Value) is used in this study to determine the level of productivity of each worker. Meanwhile, to determine the factors which affect the labor’s productivity, factor analysis is used in this study supported the spread of questionnaire to the supervisors. It can be seen that the average level of worker productivity on rebar work in project A which has been undertaken by one of the foreign contractor was 71,4881% and LUR value for formwork workwas 74,3086%, while the project B which has been done by one of the BUMN contactors, LUR value on rebar work was 66,1528 % and on the formwork work was 72,5055 %. Of the same type of work, LUR value comparison shows that productivity of workers on the project A is higher. Meanwhile, factor analysis on the questionnaire shows that some factors which affect on project A are work method, work instructions, tools quality, group labor composition, working drawings, remunerations, area density of labor, labor skills, experience and teamwork. While, factors that affect labor productivity on the project B are expertise of labor, area density of labor, experience, group labor composition, work method, management and leadership skill, team work and tools quality. Keywords: productivity, labor utilization rate, productivity factor, labor, factor analysis
The Performance Analysis of High-Rise Building Structure Based on SNI 03-1726-2012 and SNI 03-1726-2019 (Case Study: Tower 1 Transit-Oriented Development Apartment Pondok Cina, Depok) Sudarno Tampubolon; Pinondang Simanjuntak; Gracela P. Tarapandjang; I Putu Ellsa Sarassantika
Journal of Infrastructure Planning and Engineering (JIPE) Vol. 2 No. 1 (2023)
Publisher : Master Program of Infrastructure and Environmental Engineering, Postgraduate Program, Warmadewa University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/jipe.2.1.2023.36-41

Abstract

Indonesia has the latest seismic standard, namely SNI 03-1726-2012 which replaces the previous seismic standard, namely SNI 03-1726-2012. This study aims to compare the calculation and analysis of the result of the Transit-Oriented Development (TOD) apartment in Pondok Cina, Depok based on SNI 03-1726-2012 and SNI 03-1726-2019 and find out what parameters make a significant difference between SNI 03-1726-2012 and SNI 03-1726-2012. SNI 03-1726-2019. From the comparison results, there was an increase in the parameter values ​​of SS and S1 in SNI 03-1726-2019, resulting in the influence of the parameter values ​​of SDS and SD1 which became the reference for calculating the acceleration value of the response spectra in SNI 03-1726-2019. The value of the basic static shear force in the X and Y directions in SNI 03-1726-2019 increased by 18% from the value of the basic static shear force in SNI 03-1726-2012 and the value of the dynamic basic shear force in the X and Y directions in SNI 03-1726- 2019 experienced an increase of 15% from the value of the dynamic base shear force in SNI 03-1726-2012. The basic shear force increases because the acceleration spectral design response has a high increase in 03-1726-2019 compared to SNI 03-1726-2012. Based on the control of the performance level of the Transit-Oriented Development (TOD) apartment building, Pondok Cina Depok, is included in the Immediate Occupancy, meaning that when an earthquake occurs, the building does not suffer heavy damage, can still be used and the risk of casualties is very small. Performance-based planning can provide information on how the building behaves during an earthquake and the extent to which the earthquake will affect the structure.
ANALISIS KINERJA BANGUNAN KETIDAKBERATURAN HORIZONTAL BERDASARKAN METODE RESPONS SPEKTRUM DAN TIME HISTORY (STUDI KASUS: GEDUNG SIMPANG TEMU MRT DUKUH ATAS JAKARTA) Steffy Catharina Rebeccha Simbolon; Sudarno P. Tampubolon; Agnes Sri Mulyani
Jurnal Pensil : Pendidikan Teknik Sipil Vol 12 No 3 (2023): Jurnal Pensil : Pendidikan Teknik Sipil
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jpensil.v12i3.37850

Abstract

Indonesia is geographically located in the Pacific Ring of Fire, Especially on Java Island, which has the densest infrastructure and population and is located between the Indo-Australian plate and the Eurasian plate, causing this area to have many active volcanoes and has a high potential for earthquakes. Therefore, it is necessary to pay the planned earthquake load in planning the building structure design to minimize losses due to the earthquake. This study aims to determine the structure's performance against safeguards, deviations between levels, and structural stability limits against earthquake loads and to review horizontal structural irregularities based on SNI 1726: 2019 regulations in existing buildings at the Simpang Temu MRT Dukuh Atas Jakarta Building. The analysis process was carried out by 3D building modeling using the ETABS software program, analysis based on time history and spectrum response. Time History analysis uses recorded earthquakes of Kobe Japan, ChiChi Taiwan, and El Centro which match the earthquake response spectrum, the results of the analysis based on the program were carried out to compare the two methods used. Based on the results of the analysis, the building is classified into horizontal irregularities with excessive torque ratio > 1.4, average displacement value from the 2nd to 12th floor in the horizontal direction X exceeds the drift value limit. The results of the instability limit for structural stability against displacement based on the P-Delta effect still meet the structural stability limits so it can be stated that the structure is stable and safe.
FAKTOR-FAKTOR PEMILIHAN PEMASOK MATERIAL BANGUNAN Fuk Jin Oei; Sudarno P Tampubolon; Dady Supriadi; Iwan B. Santoso
Jurnal Rekayasa Teknik Sipil dan Lingkungan - CENTECH Vol. 4 No. 2 (2023): Jurnal Rekayasa Teknik Sipil dan Lingkungan, Oktober 2023 ISSN 2722-0230 (Onlin
Publisher : UKI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/cen.v4i2.5239

Abstract

Selection materials suppliers selectively are important things to be done by the contractor because it can save the cost of the project given the fact that more than half of project expenditure is for the material so we need the right management in the procurement of materials. In this study explains the factors to be considered contractor in choosing the material supplier. There are four main factors to be considered in the selection of contractors, namely material supplier quality, delivery, service, and cost which is then translated into 19 sub-variables. By using multiple linear regression obtained 3 factors that influence the decision of the contractor to buy material that is the amount of material being sent, delayed payment, and the accuracy of the information given price.
Sosialisasi dan Lomba Kreativitas Daur Ulang Sampah di SMP Advent Tompaso Kabupaten Minahasa, Sulawesi Utara Deviana Munthe; Sudarno P Tampubolon
JURNAL Comunità Servizio : Jurnal Terkait Kegiatan Pengabdian kepada Masyarakat, terkhusus bidang Teknologi, Kewirausahaan dan Sosial Kemasyarakatan Vol. 6 No. 1 (2024): APRIL
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM), Univesitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/cs.v6i1.5629

Abstract

Abstract The concept of waste reduction (reduce), recycling or reusing (reuse/recycle), and safe disposal (dispose) is highly crucial in mitigating waste pollution today. The Community Service activity carried out at SMP Advent Tompaso through socialization and a creative waste recycling competition themed "Reduce Wasted and Save The Earth" underscores the importance of these principles. The enthusiasm of the students to learn about waste recycling methods in their environment, which can hold significant economic and market value, is evident. Furthermore, the participation of each class, sending their teams to compete in every contest, demonstrates their active involvement. From the two contests, namely the fashion show and waste recycling craft competition, it is apparent that each student possesses high levels of creativity. Plastic and paper waste transformed into clothing showcased in the fashion show highlight the variety of designs created. Meanwhile, the crafting of plastic waste into flower-shaped handicrafts demonstrates both economic and market value. Through the dissemination of information and the competitions, the hope is that students will not only become more environmentally conscious but also actively contribute to mitigating the impacts of global warming. They are encouraged not to dispose of waste recklessly but instead to start sorting waste in their surroundings, thus contributing to the preservation of the world and their immediate environment. Keywords: Socialization; creativity; trash, recycling, competition