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Astariani, Ni Kadek
Prodi Teknik Sipil Fakultas Teknik Universitas Ngurah Rai
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Public Health Social Sciences Transportation Other

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Optimizing Reinforcement Requirements for Inspection Road Works Using Cutting Optimization Pro Software on the SANUR Port Project Astariani, Ni Kadek; Partama, I Gusti Ngurah Eka; Kamasan, Anak Agung Ngurah Mayun Pradnya Putra
ASTONJADRO Vol. 14 No. 1 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i1.17201

Abstract

Construction project is a long process, where in its implementation there are many problems that must be resolved. One of the problems that is often encountered is uncontrolled use of materials, resulting in construction waste. This condition occurs because the control system implemented still uses a conventional system, namely relying only on the performance of craftsmen in the field without any control over the possible patterns of cutting the remaining reinforcing waste with the type of rebar that will be used next manually. So the method for reinforcing steel work that is suitable to be carried out in the field is to prepare a Bar bending schedule (BBS). BBS is a calculation method to determine the length of each iron required, the amount of reinforcing iron to be used and the total weight of all the iron to be installed in a structure. As in the Sanur Port Project, specifically on the South Breakwater Inspection Road sub-work, where based on the calculation results, it was found that the waste level value produced based on the Bar bending schedule (BBS) method using the Cutting Optimize Pro application was smaller when compared to the manual waste level value. . Where optimization using the cutting optimization pro software compared to the manual method can optimize the use of rebar rods by 9.88% with a waste level value of 0.58%.
Analisis Kuat Tekan Berdasarkan Nilai Pantulan Palu Menggunakan Spesimen Kubus Beton Agregat Lokal Bali Partama, I Gusti Ngurah Eka; Astariani, Ni Kadek; Sudika, I Gusti Made; Silvi, Ni Putu
TEKNIK Vol 45, No 3 (2024): December 2024
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v45i3.59107

Abstract

Terdapat dua metode pengujian kuat tekan beton yaitu Non-Destructive Test (NDT) dan Destructive Test (DT). DT dilakukan dengan Compression Testing Machine (CTM) sedangkan NDT dapat menggunakan Hammer Test (HT). Agregat lokal Bali mempunyai sifat yang spesifik, sehingga metode pengujian yang lazim perlu disesuaikan. Spesimen yang dicetak di lokasi pekerjaan diuji tekan menggunakan CTM di laboratorium pada umur tertentu yang diinginkan, sehingga perlu dimobilisasi untuk mengujinya. Lokasi pekerjaan yang jauh menjadi kendala tatkala informasi kuat tekan harus ditetapkan secepatnya. Alat HT bentuknya kecil, ringan, mudah dioperasikan, hasilnya cepat namun dianggap kurang akurat perlu dioptimalkan. Penelitian ini bertujuan untuk mendapatkan formulasi memberikan informasi kuat tekan (f’ck) yang representatif, dilakukan dengan metode eksperimen menggunakan spesimen kubus 15x15x15cm3. Nilai pantul (Rn) ditentukan berdasarkan rerata 3 sisi yang tidak dalam satu sumbu, sedangkan f’ck ditentukan menggunakan CTM. Korelasi keduanya ditentukan berdasarkan analisa regresi, untuk r2 terbesar, f’ck selalu positif serta korelasi Rn-f’ck yang selalu selaras adalah formulasi yang direkomendasikan. Kuat tekan beton agregat lokal Bali dapat ditentukan dengan HT (a=0o), spesimen kubus 15x15x15cm3 dan formulasi f’ck=0,0644Rn2-0,9261Rn+6,0725; Rn=rerata 5 nilai pantul pada 3 sisi kubus yang tidak satu sumbu. Formulasi tersebut untuk spesimen kubus pada umur 3-28 hari dan diatas 28 hari perlu kajian tersendiri.
PENYIAPAN DOKUMEN PENDUKUNG USULAN PERMOHONAN BANTUAN DANA DAK FISIK PENUGASAN BIDANG PENDIDIKAN SMK BINTANG PERSADA DENPASAR I Gusti Ngurah Eka Partama; I Gusti Made Sudika; Ni Kadek Astariani; Made Sudarma; Ayu Putu Utari Parthami Lestari
J-ABDI: Jurnal Pengabdian kepada Masyarakat Vol. 2 No. 3: Agustus 2022
Publisher : Bajang Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53625/jabdi.v2i3.2748

Abstract

SMK Bintang Persada Denpasar dinaungi oleh Yayasan Bintang Persada (YBP) memanfaatkan Program DAK Fisik Penugasan Bidang Pendidikan SMK Kota Denpasar Tahun 2020, untuk melanjutkan pembangunan gedung sekolahnya memerlukan dokumen hasil kajian struktural untuk melengkapi proposalnya. YBP bekerja sama dengan Fakultas Teknik Universitas Ngurah Rai (FT UNR) dalam menyiapkan dokumen tersebut dalam suatu Surat Perjanjian Kerjasama dengan melibatkan 5 dosen dan 4 mahasiswa untuk membantu aktifitas kajian dan menggambar hasil kajian. Survei dilakukan untuk pengumpulan data terkait bangunan eksisting, penyelidikan tanah dan pengujian mutu beton. Data yang didapat merupakan data masukan dalam analisa struktur pembangunan lanjutan gedung menjadi 4 lantai. Hasil kajian mendapatkan mutu bahan dan struktur gedung eksisting dinyatakan layak untuk dilanjutkan menjadi 4 lantai dengan ketentuan yang disajikan dalam gambar rencana. Dokumen hasil penyelidiakn tanah, Hammer test, laporan analisa struktur, laporan hasil kajian dan gambar rencana selanjutnya diserahkan ke YBP dan SMK BPD.
Sinergitas Dalam Pengelolaan Sumber Daya Air Melalui Biopori Ardana, Putu Doddy Heka; Astariani, Ni Kadek; Lestari, Ayu Putu Utari Parthami; Pamungkas, Tri Hayatining
DEDIKASI PKM Vol. 6 No. 2 (2025): DEDIKASI PKM
Publisher : Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/dkp.v6i2.48261

Abstract

Wawasan pengelolaan air sangat mendesak dilakukan saat ini, terutama di lingkungan perkotaan. Air adalah kebutuhan pokok manusia, namun jika tidak dikendalikan juga kadang menimbulkan masalah, seperti banjir dan bencana lanjutannya di musim hujan. Di musim kemarau, air sulit ditemukan. Di perkotaan tidak mudah untuk menyisakan lahan sebagai penyerapan air dengan lingkungan binaan yang mendominiasi tutupan lahan. Dengan keterbatasan lahan terbuka, teknologi biopori sudah lama ditawarkan menjadi solusi. Namun, manfaat biopori belum cukup dipahami. Bersinergi dengan BWS Nusa Penida, Fakultas Sains dan Teknologi berupaya memperkenalkan pengetahuan biopori dan prakteknya melalui Pengabdian Masyarakat yang diselenggarakan di bulan Desember 2023 lalu. Bersama mahasiswa, dosen dan tenaga kependidikan di lingkungan Universitas Ngurah Rai, kegiatan ini berhasil menanam 100 titik lubang bipori yang diharapkan berkontribusi pada pengurangan genangan air pada saat musim hujan, peningkatan kualitas cadangan air bersih dalam tanah hingga peningkatan pengetahuan peserta mengenai teori dan praktik kegiatan. Rumusan masalah dari karya ilmiah ini adalah bagaimana sinergitas antara institusi pendidikan, pemerintah, dan masyarakat dalam memahami, menerapkan, dan memperluas penggunaan biopori sebagai solusi dalam pengelolaan sumber daya air di lingkungan perkotaan? Sedangkan metodologi dalam karya ilmiah ini akan memanfaatkan metode kuantitatif untuk memahami persepsi, sikap, dan perilaku mahasiswa terkait pengelolaan air dan penanaman biopori. Di akhir kegiatan dilakukan perbandingan wawasan peserta kegiatan yang menunjukkan tren peningkatan.
STUDI KOMPARASI PARAMETER RESPONS SPEKTRUM GEMPA DESAIN SNI 1726-2012 TERHADAP SNI 1726-2019 DAERAH BALI UTARA DAN BALI BARAT Astariani, Ni Kadek; Astika, I Kadek; Juliawan, I Kadek Hendra; Hidayatulah, Syarif; Suarjana, I Gede Purnomo
Jurnal Teknik Gradien Vol 17 No 01 (2025): JURNAL TEKNIK GRADIEN
Publisher : Fakultas Sains dan Teknologi Universitas Ngurah Rai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47329/teknik_gradien.v17i01.1405

Abstract

Daerah Bali utara dan Bali barat yang meliputi Kabupaten Buleleng dan Kabupaten Jembrana merupakan daerah rawan gempa karena memiliki beberapa pegunungan yang melintang di sepanjang kedua kabupaten tersebut. Peraturan gempa yang berlaku saat ini adalah SNI 1726-2019 yang mengadopsi ASCE 7-16, dengan adanya perubahan peraturan tersebut, maka perlu dilakukan evaluasi terhadap bangunan yang telah dibangun menggunakan peraturan SNI 1726-2012. Terkait dengan adanya pembaharuan tersebut maka dilakukan komparasi parameter respons spektrum gempa SNI 1726-2012 terhadap SNI 1726-2019 dengan memilih 10 lokasi di kedua kabupaten dengan menggunakan kelas situs yaitu tanah keras (SC), tanah sedang (SD), dan tanah lunak (SE). Setiap perubahan pada parameter dan koefisien, baik itu peningkatan maupun penurunan, akan mempengaruhi grafik spektrum respons desain. Dari hasil analisis dengan menggunakan metode rspons spektrum gempa, terlihat bahwa adanya peningkatan beberapa nilai parameter SNI 1726-2019 terhadap SNI 1726-2012 berdasarkan kelas situs atau jenis tanahnya. Untuk parameter SDS dan SD1 pada kelas situs tanah keras (SC), tanah sedang (SD), dan tanah lunak (SE) rata-rata mengalami kenaikan pada grafik respons spektrum dengan menggunakan SNI 1726-2019 jika dibandingkan dengan SNI 1726-2012. Berdasarkan hasil penelitian ini maka sangat perlu dilakukan segera evaluasi keamanan bangunan mengacu SNI-1726:2019 bagi bangunan yang berada di lokasi yang nilai SDS dan SD1 nya mengalami kenaikan.
Comparison of Design and Cost of Reinforced Concrete Structures in Buildings with Brick, Brick and Light Brick Walls in front of SD No. 9 Benoa Astariani, Ni Kadek; Sudika, I Gusti Made; Triatmaja, Putu Arif Prabawa
ASTONJADRO Vol. 14 No. 2 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i2.17207

Abstract

In building structures, the accepted dead load is the load of the elements in the building, including reinforced concrete, rebated concrete, specs, ceramics, tiles, ceilings, MEP, walls and others. The wall load depends on what material is used on the wall. Bricks with half masonry provide a load of 250 kg/m2 (PPIUG, 1983). A pair of hollow brick walls weighs 120 kg/m2 (PPIUG, 1983) for HB 10. Light brick is concrete where air bubbles are caused by chemical reactions, AAC (Autoclaved Aerated Concrete) mixture generally consists of quartz sand, cement, lime, a little gypsum, water, and aluminum paste as a developer. Has a weight of 60 kg/m2 for the type with a thickness of 10 cm. Research is needed to compare the calculation results and structural costs of sloofs, beams, columns, ring beams and foundations in structures that use brick walls, concrete blocks and lightweight bricks. In this research, three structural models were created, namely those using brick walls, concrete blocks and lightweight bricks. Analysis was assisted using the SAP2000 Version 14.2.2 computer program. which refers to SNI-1726-2012 and SNI-2847-2013. In this research, a three-story school building located in Benoa, South Kuta Badung was studied. The results of the analysis resulted in a comparison of material requirements for the structural model with brick walls: In the overall structure, it was found that the concrete requirement in the model with brick walls was 15.71% smaller, while in the model with lightweight bricks it was 16.50% smaller. And the iron requirement for the model with bricks is 5.85% smaller, while for the model with lightweight bricks it is 6.69% smaller. The comparison of structural costs to the structural model with brick walls was found to be 8.67% smaller for the model with brick walls, and 9.26% smaller for the model with lightweight brick walls.
Influence Substitution of Tabas Stone Waste which Coated Polyester Resin to Concrete Compressive Strength Astariani, Ni Kadek; Eka Partama, I Gusti Ngurah; Dwi, I Gusti Ayu R Cahri Setia
ASTONJADRO Vol. 12 No. 3 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i3.9065

Abstract

The need for the use of concrete raw materials is increasing in line with the increase in the use of concrete in construction. The availability of concrete raw materials is dominated by the exploitation of natural resources, namely components of cement, sand and crushed stone or gravel. If the availability of this material is exploited in excess, it will have an impact on environmental damage. On the other hand, many stone crafts for decoration and building ornaments in Bali also utilize tabas stone which is also exploited from nature, where the processed rock leaves a lot of waste that is disposed of without any wise processing actions. Tabas stone waste management is expected to maximize the utilization of natural resources and also reduce environmental pollution caused by the disposal of tabas stone waste that is not managed properly. This research is expected to provide an alternative to maximize the use of tabas waste as a partial substitution of crushed stone or gravel as coarse aggregate in concrete mixtures. The porous structure of tabas stone and the high level of water absorption in the concrete mix can reduce the compressive strength of the concrete. Steps to reduce water absorption in tabas stone are carried out by maximally closing the pores using a polyester resin coating. The study was carried out by making normal concrete mixture objects according to SNI 03-2834-2000. The percentage of substitution of crushed stone with waste stone that is coated with polyester resin is 0%, 25%, 50%, 75%, 100% of the required weight of coarse aggregate. The compressive strength of the concrete will be tested at the age of 7 and 28 days using a cylindrical specimen measuring 150x300mm. Test results in the laboratory showed that the coating of tabas stone using polyester resin was able to reduce the level of water absorption from 9.96% to 3.24% or 67.5% compared to tabas stone that was not coated with polyester resin. The optimum compressive strength of coarse aggregate substitution using tabas was obtained at variations of 50% crushed stone 50% tabas stone at the age of 7 days and 28 days, respectively, reaching 15.06 MPa and 21.55 MPa.
Optimizing Project Implementation Time and Cost Using the Least Cost Method Astariani, Ni Kadek; Pagehgiri, Juniada; Pratama, Naris
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.18758

Abstract

The background of this study is project delays. In the implementation of a project, projects are often found to be delayed or the implementation of the project is not in accordance with the predetermined schedule. Optimize the time and cost of implementing a late project using the least cost analysis method. The Least Cost Analysis method is a method for accelerating work to obtain optimal project duration in a project by carrying out work activities simultaneously in the implementation of the project which can help complete a project efficiently and effectively. The SP. Buruan - Senganan - Pacung Provincial Road Construction Project is used as a case study which experienced a 10,61% delay in work progress in the 28th week. The application of the Least Cost Analysis method is only on work activities that are on the critical path in order to restore the project completion schedule to be completed according to schedule to avoid progress delays. The results of the application of the Least Cost Analysis method optimize the time and cost of completing the project on time, namely the time efficiency of 10,61% from the late time. In terms of cost, a cost efficiency of Rp. 328.135.246,76 or 2,52% is obtained.
Co-Authors Armada, I Wayan Yana Astika, I Kadek Ayu Putu Utari Parthami Lestari, Ayu Putu Utari Parthami Dwi, I Gusti Ayu R Cahri Setia Eka Partama, I Gusti Ngurah Erna Krisnanto, Erna Gede Sumarda Hidayatulah, Syarif I Dewa Made Iwan Sastra Ciptadi I Gede Subambang Kanca I Gst. Bgs. Wirya Gupta I Gusti Made Sudika I Gusti Ngurah Eka Partama I Nengah Suardana I Nyoman Suargita I Wayan Sujarta I Wayan Sumarkandia  I Wayan Yana Armada Ida Bagus Gede Indramanik Juliawan, I Kadek Hendra Juniada Pageh Giri Kamasan, Anak Agung Ngurah Mayun Pradnya Putra Karma, Made Prarabda Made Satriya Nurjaya Made Sudarma Ni Luh Putu Ening Permini Ni Putu Silvi Nuryanto - Pratama, Naris Putu Doddy Heka Ardana Putu Eka Trisna Dewi Putu Gede Denny Herlambang Putu Open Adnyana Silvi, Ni Putu Soriarta, I Ketut Suarjana, I Gede Purnomo Tjokorda Gde Agung Wijaya K.S Tri Hayatining Pamungkas Triatmaja, Putu Arif Prabawa Wiratnata, I Wayan Astu Yoshua Febrian Kastama