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All Journal Jurnal Teknik Sipil Community Development Journal: Jurnal Pengabdian Masyarakat Patria : Jurnal Pengabdian Kepada Masyarakat Jurnal Abdimas Bina Bangsa ETERNITAS Journal of Local Architecture and Civil Engineering
Christiani Chandra Manubulu
Program Studi Teknik Sipil Universitas Widya Mandira, Kupang
Arts Humanities Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Mathematics Public Health Social Sciences Transportation Other

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Journal : eternitas

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PENGARUH VARIASI TUMBUKAN PADA KADAR ASPAL OPTIMUM TERHADAP CAMPURAN LATASTON (HRS-BASE) DENGAN METODE MARSHALL TEST Ninu, Niccolo Yanthonius Adventus Agung; Bela, Krisantos Ria; Manubulu, Christiani Chandra
Eternitas: Jurnal Teknik Sipil Vol 4 No 1 (2024): ETERNITAS: Jurnal Teknik Sipil, Vol 4, No 1 Oktober 2024
Publisher : Program Studi Teknik Sipil Universitas Katolik Widya Mandira

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30822/eternitas.v4i1.3481

Abstract

Compaction is a crucial factor that affects the quality and performance of road pavements. This study evaluates the impact of varying compaction blows at the optimum asphalt content on Lataston (HRS-Base) mixtures using the Marshall Test method. The tested compaction variations are 2 x 40, 2 x 50, 2 x 60, and 2 x 70 blows. The results show that stability values increase from 841.19 kg at 2 x 40 blows to 1151.42 kg at 2 x 70 blows. Flow values decrease from 3.45 mm at 2 x 40 blows to 3.18 mm at 2 x 70 blows. The Marshall Quotient (MQ) increases from 243.85 kg/mm at 2 x 40 blows to 362.72 kg/mm at 2 x 70 blows. The Void in the Mineral Aggregate (VMA) decreases from 19.30% at 2 x 40 blows to 17.02% at 2 x 70 blows. The Void in Mix (VIM) also decreases from 5.22% at 2 x 40 blows to 2.54% at 2 x 70 blows. The Void Filled with Asphalt (VFA) increases from 72.94% at 2 x 40 blows to 85.10% at 2 x 70 blows. The density of the mixture increases from 2.271 gr/cm³ at 2 x 40 blows to 2.335 gr/cm³ at 2 x 70 blows. However, only the 2 x 50 blows variation meets all the parameters specified in Bina Marga 2018 Revision 2. The 2 x 40 blows compaction results in low MQ and high VIM, while the 2 x 60 and 2 x 70 blows compaction results in VIM below the minimum limit. These findings highlight the importance of balanced compaction to enhance road pavement quality.
KINERJA STRUKTUR PEDIATRIC & ICCU BUILDING OF GUIDO VALADARES NATIONAL HOSPITAL MENGGUNAKAN PUSHOVER ANALYSIS Oke, Matheus Putra Septian Seda; Hendrikus, Rani; Mooy, Merzy; Manubulu, Christiani Chandra; Bela, Krisantos Ria
Eternitas: Jurnal Teknik Sipil Vol 4 No 1 (2024): ETERNITAS: Jurnal Teknik Sipil, Vol 4, No 1 Oktober 2024
Publisher : Program Studi Teknik Sipil Universitas Katolik Widya Mandira

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30822/eternitas.v4i1.3997

Abstract

According to SNI 1726-2019, hospitals are in category IV building risk which has high factor importance for building planning against earthquakes. Therefore, an evaluation of buildings is needed which is not only affected by earthquakes but also the strength, stiffness, and ductility of the building itself. This study aims to produce the performance of the Guido Valadares National Pediatric Hospital and ICCU Building using pushover analysis. The results of the analysis show that there is a deviation failure caused by the presence of a ramp on one side of the building which results in greater stiffness on that side than on the other side of the building. A new structural system is applied on the lower side of the building with bracing reinforcement to create balance for the building. The new design results reveal better building structure performance and it is in accordance with applicable standards.
REDESAIN TEBAL PERKERASAN JALAN LENTUR MENGGUNAKAN METODE MANUAL DESAIN PERKERASAN JALAN 2017 (Studi Kasus Jalan Gor Flobamora-Jalan Kejora, Kota Kupang) Daru, Fridolin Delawati; Pedo, Krisantus Satrio Wibowo; Manubulu, Christiani Chandra
Eternitas: Jurnal Teknik Sipil Vol 4 No 1 (2024): ETERNITAS: Jurnal Teknik Sipil, Vol 4, No 1 Oktober 2024
Publisher : Program Studi Teknik Sipil Universitas Katolik Widya Mandira

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30822/eternitas.v4i1.4227

Abstract

The Gor Flobamora-Kejora Road section is one of the alternative routes connecting Oebufu and Tofa District. Damage that occurs on this route is a major factor in disrupting accessibility, comfort and safety. Inconsistencies in planning with construction and use of pavement often cause damage, so an evaluation is needed in determining actions to improve the quality of road service life. This study aims to assess the condition of the road pavement and redesign the pavement. The road condition assessment method uses the 1990 Bina Marga method and the Surface Distress Index (SDI) method, while to redesign the pavement using the 2017 Road Pavement Design Manual Method. The results of the analysis show that the highest SDI value is 115 with minor damage conditions, it is recommended for road rehabilitation, while the Bina Marga method shows the highest Priority Sequence value is 6, with recommendations for periodic maintenance. The dominant type of damage is potholes, with a percentage of damage of 31.56%. The proposed pavement redesign uses flexible pavement with a layer thickness of 4 cm AC WC, 6 cm AC BC, 8 cm AC Base, and 15 cm Class A LPA
Co-Authors Alfuara Tedu, Nomentius Amasan, Alfred Jejenus Angul, Aurelia Lete Azarya Bees Bela, Krisantos R. Dantje A. T. Sina Daru, Fridolin Delawati Engelbertha Noviani Bria Seran, Engelbertha Noviani Bria Frederikus D. Ndouk Hendrikus, Rani Krisantos Ria Bela Krisantus Satrio Wibowo Pedo Lulu, Laurensius M. F. Seran, Sri Santi L. Merzy Mooy Ninu, Niccolo Yanthonius Adventus Agung Oke, Matheus Putra Septian Seda Sianto, Paulus Usboko, Gregorius Paus Yunita A. Messah