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Jurnal Sipil Terapan
Published by Universitas Cenderawasih
ISSN : 29869862     EISSN : 29869870     DOI : 10.58169
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Teknik Sipil meliputi bidang ilmu yang mempelajari perencanaan/perancangan, manufaktur, manajemen/pengelolaan, dan konservasi dari beragam fasilitas dan sistem untuk mendukung sebuah kota, pedesaan, dan perkotaan.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 60 Documents
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Integritas Beton Jembatan pada Kepulauan Bangka Belitung Berdasarkan Hasil UPV dan Rebound Hammer Rajinda Syadzali Bintang; Rachmat Hakiki; Herlinawati Herlinawati; M Dimaz Brilyanza; Pandu Sakti Nugraha
Jurnal Sipil Terapan Vol. 4 No. 2 (2026): November: Jurnal Sipil Terapan
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/jusit.v4i2.1189

Abstract

This study was conducted to assess the condition and quality of concrete in bridges across the Bangka Belitung Islands Province using non-destructive methods: Ultrasonic Pulse Velocity (UPV), Rebound Hammer, and crack depth testing. This evaluation is crucial for determining the extent of concrete material degradation caused by factors such as structural age, environmental conditions, and construction quality, all of which can impact bridge performance. The research involved collecting field data from various structural elements—including girders, decks, piers, and abutments—and analyzing the results against BS 1881: Part 203:1986, ASTM C597-16, and SNI 2847:2019 standards. The findings indicate that UPV values ​​ranged from 2,931 to 3,442 m/s, predominantly falling into the "medium" condition category. Estimated concrete compressive strength, based on the correlation between UPV and Rebound Hammer data, ranged from 15.60 to 33.12 MPa, with 64.29% of the bridges meeting the minimum standard of 21 MPa. Crack depth testing revealed depths ranging from 13 to 51 mm, mostly classified as shallow to medium. Overall, the combined use of UPV and Rebound Hammer methods provided complementary evaluation results regarding both internal and surface concrete quality. These findings suggest that while most bridges remain in serviceable condition, certain elements require further attention and maintenance to preserve their performance and service life.
Respons Campuran Asbuton–Gondorukem terhadap Variasi Suhu Pencampuran: Stabilitas Marshall dan Kekuatan Sisa setelah Perendaman Hidayatul Amri; Mashur Mashur; Ikhwan Wadi; Lalu Ibrohim Burhan
Jurnal Sipil Terapan Vol. 4 No. 2 (2026): November: Jurnal Sipil Terapan
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/jusit.v4i2.1195

Abstract

The use of Asbuton as a local asphaltic material combined with bio-based additives requires appropriate processing conditions to obtain consistent mixture performance. This study aims to evaluate the response of Asbuton–gondorukem asphalt mixtures to different mixing temperatures based on Marshall stability and retained strength after immersion. The mixtures were prepared at mixing temperatures of 60°C, 90°C, and 120°C, with immersion durations of 0, 1, 2, and 3 days. A total of 36 specimens were prepared, consisting of three specimens for each combination of mixing temperature and immersion duration. Marshall stability was analyzed descriptively by comparing the average stability values and the Retained Strength Index (IKS), calculated as the ratio of stability after 3 days of immersion to the initial stability. The results showed that the highest initial stability was obtained at 120°C, reaching 4,204.25 N, whereas after 3 days of immersion the highest stability was obtained at 90°C, reaching 4,034.57 N. The IKS values were 126.32%, 130.53%, and 84.11% for mixing temperatures of 60°C, 90°C, and 120°C, respectively. The results indicate that the mixing temperature associated with the highest initial stability did not necessarily produce the highest stability after conditioning. The 90°C condition was therefore identified as the most prospective condition for further investigation within the temperature range studied, rather than being established as the optimum mixing temperature. Further research is required using additional performance parameters, including volumetric properties, flow, Marshall Quotient, moisture susceptibility, and durability.
Analisis Sistem U Tilitas Gedung Oncology RSUP Kandou Manado Ribka Katuhe; Hendrie Joudi Palar; Cyntha Tendean
Jurnal Sipil Terapan Vol. 4 No. 2 (2026): November: Jurnal Sipil Terapan
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/jusit.v4i2.1217

Abstract

Utility systems are essential for ensuring safety, comfort, and operational efficiency in hospital buildings. This study aims to analyze the implementation and technical compliance of air conditioning (AC) and elevator systems in the Oncology Building of RSUP Dr. R.D. Kandou Manado. A descriptive-evaluative method combining quantitative and qualitative approaches was employed. Data were collected through field observations, documentation, and technical project documents. The AC system was evaluated based on its type, installation layout, air distribution, and capacity, while the elevator system was assessed in terms of specifications, travel time, waiting time, and handling capacity. The findings indicate that the building utilizes a central AC system with 4-way cassette units installed in spacious rooms and 2-way cassette units in elongated rooms to support appropriate air distribution. However, comprehensive evaluation of AC capacity remains limited by incomplete technical specifications and air parameter measurements. The elevator system consists of two bed lifts and two fire lifts, each with a capacity of 1,800 kg and a speed of 120 meters per minute. The calculated round trip time was 152.4 seconds, while the Elevator Traffic Analysis indicated a waiting time of 41.13 seconds and a handling capacity of 10.89%. These elevator performance indicators met the criteria applied in the study based on SNI 03-6573-2001. The findings provide a basis for evaluating hospital utility systems and identifying areas requiring further technical assessment.
Perencanaan Sistem Utilitas Air Kotor pada Proyek (SMP Negeri 4 Tagulandang) Ayulia Taareluan; Sherley Runtunuwu; Olivia Moningka
Jurnal Sipil Terapan Vol. 4 No. 2 (2026): November: Jurnal Sipil Terapan
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/jusit.v4i2.1222

Abstract

This study aims to design the wastewater utility system (blackwater and greywater) for SMP Negeri 4 Tagulandang building, which is part of the permanent housing relocation project following the Mount Ruang eruption in Modisi Village, South Bolaang Mongondow Regency. A descriptive quantitative case study method was employed with technical calculations based on SNI 8153:2015, SNI 03-7065:2005, and SNI 2398:2017. User data of 32 people (23 students, 8 teachers, and 1 principal) served as the basis for clean water demand and wastewater generation calculations. Results show blackwater discharge of 960 L/day (0.0444 L/s) and greywater of 320 L/day (0.0148 L/s) with a total peak discharge of 0.145 L/s. Piping network design using the Plumbing Fixture Unit (UBAP) method resulted in Ø4" (110 mm) pipes with 1% slope for blackwater and Ø3" (75 mm) pipes with 2% slope for greywater. The designed separate septic tank capacity is 7.68 m³ with dimensions of 2.77 m × 1.87 m × 1.79 m. The system meets hydraulic requirements and applicable technical standards, ensuring safe and sustainable operation.
Investigating the Effect of Cement Bentonite Stabilized Soft Clay on Mechanical Behavior Under Unconsolidated Undrained Triaxial Loading Dhevi Mulyanda; Ibrahim Ibrahim; Rajinda Syadzali Bintang; Arasit Pratama; M. Ryadya Tantra Paganini
Jurnal Sipil Terapan Vol. 4 No. 2 (2026): November: Jurnal Sipil Terapan
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/jusit.v4i2.1225

Abstract

Soft clay is characterized by low shear strength and high compressibility. Chemical stabilization using cement and bentonite can improve soil index and mechanical properties through modifying hydraulic characteristics and soil structure. This study aims to investigate the effect of cement – bentonite combinations on the shear strength behavior of soft clay and identify the optimum mixture. Experimental investigation are conducted using the unconsolidated undrained (UU) triaxial test to evaluate the mechanical response of stabilized soil under rapid loading. Several mix composition has designed to determine the optimum mixture.  A total of 36 soil samples of  20% cement and bentonite content addition  varied from  8%, to 12% in 1% increment will be tested under confining pressures of 100, 200, and 300 kPa. The results show that maximum deviator stress increased with confining pressure whereas its relationship with bentonite was non linier. The mixture at 9% bentonite performed the highest maximum deviator stresses at all confining pressures reaching 390, 450, and 573 kPa, respectively. Further increases in bentonite content beyond 9% resulted in lower maximum deviator stress. The failure envelope analysis also indicates that increasing bentonite does not improve shear strength. Through this investigation, 9% bentonite showed the best shear – strength performance among the tested mixture. These findings highlight the importance of optimizing addiyive content to produce better mechanical performance.
Optimasi Komposisi Bata Interlock Berbasis Tanah Andosol-Fly Ash dengan Metode Taguchi Nadia Adawi Hidayatunnisa; Fedya Diajeng Aryani; Ikroman Alhamzani
Jurnal Sipil Terapan Vol. 4 No. 2 (2026): November: Jurnal Sipil Terapan
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/jusit.v4i2.1228

Abstract

This study aimed to optimize the composition of interlocking bricks made from local Andosol soil and fly ash to achieve the highest compressive strength within the investigated composition ranges while limiting cement content. A Taguchi L27 orthogonal array was used to investigate three factors: fly ash (0%, 8%, and 16%), cement (6%, 8%, and 10%), and sand (0%, 2%, and 4%). Andosol soil constituted at least 70% of the mixture. The 27 treatment combinations, each with three replications, produced 81 specimens tested at 28 days. Compressive strength ranged from 0.40 to 2.00 MPa, with an overall mean of 0.78 MPa. Response analysis, signal-to-noise (S/N) ratio analysis, analysis of variance (ANOVA), and factor interaction analysis identified cement as the most influential factor, contributing 29.04%. The final composition differed from the main-effect candidate because factor interactions were also considered. The selected composition comprised 80% Andosol soil, 8% fly ash, 10% cement, and 2% sand. The predicted compressive strength was 1.62 MPa, while the confirmation experiment yielded an average of 1.77 MPa, with a relative error of 8.74%. These results demonstrate the applicability of the Taguchi method for optimizing the compressive strength of Andosol-based interlocking bricks.
Pengaruh Kombinasi Fly Ash Lokal dan Silica Fume terhadap Kuat Lentur Beton untuk Perkerasan Jalan Luthfiyyah Ulfah; Dimitri Yulianti; Rizki Prasetya Person; Feridianda Al Farrij; Yobi Marial H; Naila Taqiyyah; Shifa Salsabila N
Jurnal Sipil Terapan Vol. 4 No. 2 (2026): November: Jurnal Sipil Terapan
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/jusit.v4i2.1229

Abstract

This study analyzes the effect of combining local fly ash from PT Bukit Asam (PTBA) and PT Pupuk Sriwijaya (PUSRI) with silica fume addition on the flexural strength of concrete supporting the green pavement concept. Cement was substituted with 6% fly ash in PTBA, PUSRI, and 50:50 combination variations, along with 5% silica fume as an additive. Experimental testing used beam specimens (15×15×60 cm) evaluated at 7, 28, and 35 days according to SNI 4431:2011. Results show that concrete with 5% silica fume without fly ash achieved the highest flexural strength of 6.453 MPa at 35 days, while the 50:50 PTBA-PUSRI combination produced 6.173 MPa, higher than normal concrete (5.480 MPa). The higher pozzolanic reactivity of PUSRI fly ash contributed to the improved flexural performance of the blended mixture. The 50:50 PTBA-PUSRI fly ash combination with 5% silica fume is recommended as the optimal formulation for sustainable green road pavement applications.
Effects of Environmental Groundwater Fluctuations and Additional Load on The Stability of Shallow Foundations Nita Anggraini; M. Sang Gumilar Panca Putra; Dwi Wahyuni; M. Farhan Fajri; M. Fairuzi Faiz Matra; Sutant Arkha Pratama
Jurnal Sipil Terapan Vol. 4 No. 2 (2026): November: Jurnal Sipil Terapan
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/jusit.v4i2.1230

Abstract

Fluktuasi air tanah dan beban struktural tambahan dapat memengaruhi stabilitas dan kemampuan layanan pondasi dangkal yang ada, khususnya pada bangunan rumah sakit yang mengalami perluasan vertikal. Studi ini mengevaluasi kecukupan pondasi yang ada yang menopang salah satu bangunan rumah sakit Kelas A di Sumatera Selatan setelah rencana penambahan lantai ketiga. Pendekatan studi kasus kuantitatif digunakan, yang menggabungkan Uji Penetrasi Kerucut (CPT), penggalian dan inspeksi pondasi, catatan beban struktural, dan perhitungan analitis daya dukung. Investigasi bawah permukaan mengidentifikasi tanah yang dominan kohesif dan bertekstur lempung di lapisan dangkal, yang bertransisi ke lapisan penahan beban yang kaku hingga padat pada kedalaman sekitar 15 m. Pondasi yang ada berukuran 2,1 m × 2,1 m, dengan kedalaman penanaman 2,1 m, sedangkan muka air tanah diamati sekitar 1,0 m di bawah permukaan tanah. Perhitungan awal memperkirakan daya dukung ultimat sebesar 2.890,1 kPa dan daya dukung yang diizinkan sebesar 1.156,1 kPa. Untuk reaksi struktural sebesar 237,804 ton, luas pondasi yang dibutuhkan diperkirakan sebesar 2,01 m², dibandingkan dengan luas yang ada sebesar 4,41 m². Temuan ini menunjukkan bahwa dimensi pondasi yang ada sudah memadai untuk menopang beban tambahan di bawah parameter tanah yang diadopsi dan kondisi air tanah yang diamati.
Evaluasi Perilaku Deformasi Bored Pile akibat Pembebanan Tarik Statik Berdasarkan Data Pengujian Lapangan Risayanti Risayanti; Zufrimar Zufrimar; Nori Yusri; Aprilla Yunita
Jurnal Sipil Terapan Vol. 4 No. 2 (2026): November: Jurnal Sipil Terapan
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/jusit.v4i2.1233

Abstract

Full-scale static uplift testing can be used to evaluate the load–displacement response and deformation behavior of foundation piles under actual ground conditions. This study evaluates the deformation behavior of a bored pile based on a field testing report from East Jakarta, Indonesia. The pile had a diameter of 1.00 m and an actual length of 26.95 m and was tested up to 240 ton, equivalent to 200% of the design uplift load of 120 ton. The available summary data were analyzed using a quantitative descriptive approach, focusing on the load–displacement curve, the load-to-displacement ratio, displacement changes during the maximum load-holding period, residual deformation after unloading, and variations in the readings of four dial gauges. The average displacement increased from 0.19 mm at a load of 30 ton to 11.39 mm at the beginning of the 12-hour holding period at 240 ton and 11.49 mm at the end of the holding period. The additional displacement during load holding was 0.10 mm, corresponding to an average displacement rate of 0.0083 mm/h. The residual deformation after unloading was 3.59 mm, indicating a displacement recovery of 7.90 mm, or approximately 68.8% of the maximum displacement. The ratio Q/s decreased from 157.9 tonnes/mm at 30 tonnes to 21.1 tonnes/mm at 240 ton, indicating a nonlinear characteristics response of the pile–soil system. These findings characterize the deformation response of the tested bored pile within the investigated loading range.
Pemilihan Trase Multikriteria dan Perancangan Alinyemen Jalan Arteri Kelas II pada Medan Perbukitan di Kabupaten Sleman Renna Melinda; Wida Yuliar Rezika; Deby Ika Hariani
Jurnal Sipil Terapan Vol. 4 No. 2 (2026): November: Jurnal Sipil Terapan
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/jusit.v4i2.1237

Abstract

Geometric road design begins with route selection, yet Indonesian practice generally treats route weighting and alignment computation as two separate exercises, so the geometric and safety consequences of a chosen route are seldom traced back to the weighting decision itself. This study designs a 975,11 m segment of a class II arterial road (STA 8+925 to STA 9+900,11) in Sleman Regency, Indonesia, and links both stages explicitly. Three candidate routes were ranked using a weighted sum model over seven technical, non-technical, and economic criteria. The selected route was then designed following the Indonesian inter-urban geometric design guideline No. 038/TBM/1997 for a design speed of 70 km/h, and every criterion was re-verified through an independent, fully reproducible recomputation. Route 1 ranked first with a score of 3,45 against 3,25 and 3,10. A weight sensitivity test, however, revealed that the technical and economic blocks do not discriminate between the two leading routes at all: the entire margin rests on one qualitative social-conflict criterion, and the ranking collapses into a tie once that weight is redistributed. The alignment produced two curves of 165 m radius, a spiral-circle-spiral with a deflection of 39,72 degrees and a spiral-spiral with 24,32 degrees, a curve widening of 2,386 m, a stopping sight distance of 106,51 m, and a passing sight distance of 436,95 m To provide sufficient overtaking sight distance, the two curves require lateral clearance zones of 245.83 m and 268.66 m, respectively. Since these requirements cannot be met, both curves must be designated as no-overtaking zones. An evaluation of the alignment coordination shows that two of the five requirements have not been met; therefore, the design requires geometric revisions and re-verification before it can be finalized.

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