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RACIC : Rab Construction Research
Published by Universitas Abdurrab
ISSN : 25277073     EISSN : 26203170     DOI : https://doi.org/10.36341/racic
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
RACIC "Rab Construction Research" (ISSN 2527-7073) adalah Jurnal yang dikelola oleh Program Studi Teknik Sipil, Fakultas Teknik Universitas Abdurrab, yang terbit secara berkala dalam dua edisi per tahun.
Arjuna Subject : -
Articles 314 Documents
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COMPARISON OF PERIOD VALUE, DISPLACEMENT, AND DEVIATION BETWEEN LEVELS IN EKA CANDRARINI HOSPITAL BUILDING USING FIXED BASE SYSTEM AND BASE ISOLATION SYSTEM (HDRB) Nanda Primarta Nadila; Wahyu Kartini; Sumaidi
Racic : Rab Construction Research Vol. 10 No. 2 (2025): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i2.5460

Abstract

One of the innovations that continues to be developed in the planning of earthquake-resistant building structures is the use of base isolation systems. Base isolation has various types, one of which is high damping rubber bearing (HDRB). HDRB is one type of base isolation that has a relatively large initial stiffness value, so can reduce a high enough earthquake force. To find out the comparison of period, displacement, and deviation values between levels using a fixed base system and an HDRB type base isolation system in the Eka Candrarini Hospital building, it is necessary to calculate the structural analysis using an auxiliary program. Based on the analysis, it was found that there was an increase in the period value of the structure by 67%, the displacement value in the X direction by 73% and the Y direction by 22%, and a decrease in the deviation value between levels by 42% in the X direction and 43% in the Y direction.
ANALISIS GAYA DIAFRAGMA, KORD, DAN KOLEKTOR PADA STRUKTUR GEDUNG OVAL RSUD AR ROZY KOTA PROBOLINGGO Adam Rachmat Edijana; Made Dharma Astawa; Wahyu Kartini
Racic : Rab Construction Research Vol. 10 No. 2 (2025): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i2.5467

Abstract

The oval building structure of Ar-Rozy Regional Hospital in Probolinggo has non-parallel system horizontal irregularities due to the configuration of lateral restraint elements in the structure not parallel to its orthogonal axis. Structural failure due to irregularities can be anticipated by planning diaphragm elements. In this article, the design and calculation of diaphragm force, chord, and collector to ensure the safety of the structure in resisting lateral forces. The results in this article show that the diaphragm force design for stories 1-14 uses the minimum force (Fpx min), while for stories 15-16, it uses the diaphragm design force (Fpx). The chord element in the weak axis direction requires 6D22 reinforcement, while in the strong axis direction, it requires 3D22 reinforcement. The collector element in beam B1-A that has been designed requires additional 2D22 reinforcement and is installed in the center of the beam cross-section because beam B1-A as a collector element must have the ability to withstand axial-flexural forces due to the combination of collector design forces.
Structural Design Analysis of an Apartment Using a Flat Slab System with Prestressed Slabs RIVI FATHURRACHMAN AZIS; Wahyu Kartini; Sumaidi
Racic : Rab Construction Research Vol. 10 No. 2 (2025): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i2.5468

Abstract

Pakuwon Residence Apartment is one of the high-rise buildings supporting vertical housing infrastructure in Bekasi City, West Java. The building employs a conventional structural system (slab, beam, and column). By using a flatslab system, the height of high-rise buildings is reduced because the ceiling height of each floor can be maximized. The disadvantage of the flatslab system is significant horizontal displacement; therefore, reinforcement with drop panels is necessary. Analysis was performed using the pushover method through dynamic analysis with the assistance of computer software. From the pushover analysis, the following results were obtained:Maximum displacement in the X direction is 41.085 mm (< 56 mm), Maximum displacement in the Y direction is 56.2925 mm (< 80 mm), Torsional irregularity is 1.155 (< 1.2), P-Delta effect is 0.0163 (< 0.1), Shear force is 21.21 MPa (≥ 2.92 MPa), Structural performance level is 0.0015 m and 0.0021 m (< 0.01), indicating the building is still classified as immediate occupancy (IO), Ductility is 2.94 (in the X direction) and 1.99 (in the Y direction), and classifying it as partial ductility.
Analisis Tekanan Air Pori Dan Rembesan Pada Proyek Pembangunan Bendungan Tigadihaji Sumatera Selatan Reymond Martin Sutrisno Panggabean; Wikan Kresno Sadono
Racic : Rab Construction Research Vol. 10 No. 1 (2025): JUNI 2025
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i1.5496

Abstract

A problem often encountered in the construction of an embankment dam is seepage. Basically, water stored in a reservoir or dam will always find a way out from upstream to downstream through porous soil in the body of the dam. Seepage will become a big problem if the grains of embankment material in the body of the dam are also eroded by the flow of water. The erosion of the grains of material in the dam body can cause piping which can lead to dam collapse. To avoid dam collapse caused by seepage, the dam must be designed to be safe against seepage. Material selection and embankment compaction need to be considered so that the embankment soil layer does not produce excess pore water pressure. In this case study, we will model the pore water pressure at elevation +243.5 or the crest of the dam body and calculate the seepage discharge based on the material to be used as embankment material at Tigadihaji Dam. The water level to be used in this modeling uses the normal water level at elevation +235.5 and the flood water level at elevation +240.45 according to the shop drawings. This modeling will use the help of Geostudio Seep/W Version 2012 software.
EVALUASI ALINYEMEN HORIZONTAL JALAN RAYA RUAS JALAN SITUBONDO-BAJULMATI (KABUPATEN BANYUWANGI) STA 0+000 – STA 5+000 Himawan Ario Wicaksono; Nugroho Utomo; Aulia Dewi Fatikasari
Racic : Rab Construction Research Vol. 10 No. 2 (2025): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i2.5549

Abstract

The Situbondo City - Bajulmati Road Section (Banyuwangi Regency) is one of the national roads connecting Situbondo City and Banyuwangi Regency. This road section is one of the national roads with a fairly high accident rate given the condition of the road on the hills. The frequent occurrence of traffic accidents on this road section is caused by the topography of the road which has hilly characteristics. The hilly topography causes the Situbondo City - Bajulmati (Banyuwangi Regency) STA 0+000 - STA 5+000 road section to have a road with long inclines and descents that have a risk of brake failure and loss of control of the vehicle on steep and cornering roads. The horizontal alignment evaluation uses the Bina Marga Method in the form of the 2021 Road Geometric Design Guidelines. This guideline is the latest guideline issued by Bina Marga in 2021 to replace the 1997 Road Geometric Planning Procedure. Horizontal alignment evaluation is carried out by analyzing the degree of bend, bend radius, length of the transition curve and type of horizontal bend. From the results of the evaluation of the horizontal alignment of the highway on the Situbondo City - Bajulmati Road section (Banyuwangi Regency), it is known that the calculation of the horizontal alignment using the Bina Marga method results in a horizontal alignment evaluation of 13 Spiral-Circle-Spiral type bends.
Effect of treatment period on apus bamboo on compressive strength and Young's modulus: Efek masa perawatan pada bambu apus terhadap kuat tekan dan modulus young Salva Achmad Lail; Dian Purnmawati Solin
Racic : Rab Construction Research Vol. 10 No. 2 (2025): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i2.5562

Abstract

As time goes by, land is getting narrower and the price of land to build a building is getting higher. It is often found in the field that soil conditions are less favorable, especially on soft soil. So, there is a need for soil improvement measures to overcome this problem but at a relatively low cost. Using bamboo as soil reinforcement is a soil improvement technique that is easy to apply, can save costs, and has been proven safe to use several times in previous research. Apart from that, bamboo populations are also easy to find in almost all regions of Indonesia. In previous research, soil improvement was rarely carried out using Apus type bamboo as soft soil reinforcement. This is due to the lack of previous research on the compressive strength and young modulus values ​​of Apus type bamboo. Therefore, this research was carried out with the hope of providing an overview of the results of the compressive strength and Young's modulus values ​​of Apus type bamboo. The method used in testing was carried out by testing the compressive strength and young modulus values ​​of Apus type bamboo which were differentiated based on different treatment durations. Based on the test results, Apus bamboo without treatment has a compressive strength of 38.50 Mpa, where the more the bamboo is treated, the higher the compressive strength results obtained and the greatest value is obtained by bamboo with a treatment period of 14 days, namely 44.49 Mpa. Meanwhile, the elastic modulus value for bamboo for 7 days was 160847.187 kN/m2 and for treatment for 14 days the value was 287556.583 kN/m2.
KAJIAN KETERSEDIAAN AIR PADA DAERAH TANGKAPAN AIR (DTA) WADUK PAMUKKULU Hendy Adiyat Nugraha; Dyah Ari Wulandari
Racic : Rab Construction Research Vol. 10 No. 1 (2025): JUNI 2025
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i1.5577

Abstract

The Pamukkulu Dam is a multi-purpose dam designed to serve the irrigation water needs of the Pamukkulu Irrigation Area (D.I Pamukkulu), provide raw water supply, and control flooding. The dam has a total storage capacity of 82,57 million m3, with a dead storage volume of 4,95 million m3. Currently, the dam is in the preparation stage for reservoir operation, where water availability is a critical factor. Water availability is calculated based on the inflow discharge pattern for each condition year using the Weibull method. The inflow (water availability) is determined by transforming rainfall data into streamflow discharge using the F.J. Mock method. The inflow discharge of the reservoir is categorized into three conditions: "Dry Year": Annual inflow volume < 153,60 million m3 (probability 0–33,33%), "Normal Year": Annual inflow volume between 153,60–213,97 million m3 (probability 33,33%–66,67% "Wet Year": Annual inflow volume > 213,97 million m3 (probability 66.67%–100%). Based on the studies conducted, the total water availability (inflow) is as follows for a "Wet Year", 306,02 million m3, For a "Normal Year", 165,31 million m3, For a "Dry Year", 85,40 million m3
PENGARUH ABU VULKANIK ERUPSI GUNUNG SEMERU TERHADAP LAJU EROSI DAN SEDIMENTASI DI DTA (DAERAH TANGKAPAN AIR) WADUK SENGGURUH Hendri Wijaya; Dyah Ari Wulandari
Racic : Rab Construction Research Vol. 10 No. 1 (2025): JUNI 2025
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i1.5584

Abstract

Historically, over the past two decades, Mount Semeru has erupted eight times, specifically in 2008, 2016, 2019, 2020, 2021, 2022, 2023, and 2024. Given Mount Semeru's frequent eruptions, studies on erosion rate predictions, sedimentation, and sediment control structures (SCS) are necessary. Research results indicate that volcanic ash significantly affects erosion rates. The erosion rate in the Sengguruh watershed, without considering the influence of volcanic ash, is 1,359,598.20 tons/year, while the rate that accounts for volcanic ash influence is 1,383,405.96 tons/year, reflecting an increase of 23,807.76 tons/year. The total sedimentation rate in the Sengguruh Reservoir, excluding the influence of volcanic ash, is 8,091,860.92 m³/year. When volcanic ash is taken into account, the total sedimentation rate increases to 8,337,270.20 m³/year, representing an increase of 245,409.29 m³/year or 2.94%. Based on the analysis, the potential sedimentation rate can be mitigated by existing SCS structures, eliminating the need for additional ones. However, since the storage capacity of the four SCS structures is nearly full, they must first be emptied. Subsequently, routine dredging should be carried out annually, with a volume of 100,000 m³/year to 150,000 m³/year.
PENGEMBANGAN PENGELOLAAN MATERIAL SEDIMEN PADA SPOILBANK WADUK SUTAMI Tri Pambudi; Hari Nugroho; Suripin
Racic : Rab Construction Research Vol. 10 No. 1 (2025): JUNI 2025
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i1.5657

Abstract

The Sutami Dam is a multi-purpose dam currently managed by Perum Jasa Tirta 1. It is located in Karangkates Village, Malang Regency. Dredging activities in the Sutami Reservoir have led to new issues, particularly the sediment material resulting from the dredging process. The existing spoilbank capacity is still inadequate to meet the volume of material that needs to be dredged annually. Therefore, there is a need to develop the management of sediment material in the Sutami Reservoir’s spoilbank. This research is conducted to evaluate the sediment drying methods, assess the safety factor of embankment slope increases, and determine the volume increase in the spoilbank capacity. The data used in this study are sourced from soil parameter tests conducted by Perum Jasa Tirta 1, including grain size analysis and hydrometer analysis. The results of this study show that the most suitable dewatering method for sediment material management at Sutami Reservoir is Mechanical Dewatering (Filter Press). With the implementation of sediment management treatment, the embankment slope can be raised up to 9 meters at a 1:1 slope with a safety factor of 1.255. As a result, the potential increase in the spoilbank's holding capacity for one year is estimated to be between 2.016.500 – 2.303.800 m³ per year
ANALISIS KAPASITAS DRAINASE MENGGUNAKAN PERANGKAT LUNAK HEC-RAS VERSI 6.0 DALAM MITIGASI BANJIR PERKOTAAN STUDI KASUS: JALAN TRANS BARELANG Natasya Aurum Maharani; Ade Jaya Saputra; Jody Martin Ginting
Racic : Rab Construction Research Vol. 10 No. 1 (2025): JUNI 2025
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i1.5683

Abstract

The occurrence of extreme rain with an intensity of 294.8 mm/day caused flooding in Batam City. This resulted in the Trans Barelang Road experiencing inundation due to the inability of the channel to accommodate flow discharge. The purpose of this study is to analyze the capacity of drainage channels using Hec-ras software version 6.0. The research method was carried out with a quantitative approach. The analysis using the maximum rainfall for a 10-year period with a time span of 2014-2023 resulted in a planned discharge with a 2-year re-period, of 11,195 m³/s. The results of the simulation of the existing channel using Hec-ras software with dimensions of 1.4 x 1.2 m show a water surface elevation of 1.95 m which exceeds the channel elevation limit. This results in runoff in the channel. For this reason, it is necessary to change the dimensions of the channel so that it can accommodate the flow discharge as a repair step. The results of the analysis of the change in the dimensions of the channel with dimensions of 1.5×2.5 m are able to accommodate the planned flow discharge. The maximum water elevation surface (WSE) is 1.78 m, and provides a guard height of 0.78 m. The change in the dimensions of this channel is expected to drain the drainage capacity properly and it is necessary to maintain the channel to prevent a reduction in the channel's discharge capacity

Page 23 of 32 | Total Record : 314

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