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I Made Nada
Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia.
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Social Sciences Transportation

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Analisis Kinerja Struktur Baja dengan dan Tanpa Dinding Pengisi I Made Nada; I Ketut Diartama Kubon Tubuh; I Kadek Aditya Setyawan
Jurnal Ilmiah Kurva Teknik Vol. 12 No. 1 (2023): Jurnal Ilmiah Kurva Teknik
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Mahasaraswati Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36733/jikt.v12i1.6560

Abstract

Struktur dengan kinerja yang baik memiliki kemampuan untuk bertahan dari gempa meskipun sudah mencapai ambang keruntuhan. untuk mengetahui kinerja struktur yang menerima beban gempa harus dilakukan evaluasi kinerja struktur. maka dilakukanlah analisis kinerja struktur dengan dua variasi lantai yaitu lantai 5 dan lantai 3 yang dimodelkan dengan 6 struktur, yaitu MRT.5, MRDPB.5-st, MRDPP.5-st untuk lantai 5 dan MRT.3, MRDPB.3-st, dan MRDPP.3-st. dalam melakukan evalusi kinerja struktur metode dalam pengaplikasian dinding pengisi dimodelkan sebagai strut diagonal. dimana pada masing-masing model dilakukan analisis statik non linier pushover untuk mendapatkan evaluasi kinerja struktur dengan mengamati besaran beban yang terjadi pada saat target perpindahan tersebut tercapai ataupun pembebanan yang dilakukan hingga mencapai ambang batas kerunruhan struktur pada masing-masing model. Sehingga hasil analisis menunjukkan bahwa berdasarkan penambahan variasi dinding pengisi dalam model dapat meningkatkan kekakuan struktur yang berdasarkan metode analisis FEMA-356 mengenai kinerja struktur gedung diperoleh target perpindahan pada struktur lantai 5 dengan model MRT.5, MRDPB.5-st, MRDPP.5-st berturut-turut sebesar 223,669 mm, 189,792 mm, 153,096 mm untuk arah X, 248,016 mm, 227,903 mm, 192,640 mm untuk arah Y. pada struktur lantai 3 dengan model MRT.3, MRDPB.3-st, dan MRDPP.3-st. berturut-turut sebesar 142,170 mm, 112,422 mm, 74,776 mm arah X, 170,805 mm, 146,807 mm, 117,158 mm pada arah Y. Dibuktikan dengan grafik kurva pushover dari masing-masing struktur dengan dinding pengisi penuh (MRDPP) yang memiliki kinerja yang paling baik diantara struktur lainya, dengan rata-rata level kinerja yang dimiliki oleh masing-masing struktur yaitu berada pada level life safety (LS) atau aman untuk dihuni.
Analisis Kualitas Air Tukad Pakerisan Menggunakan Metode Indeks Pencemaran I Made Nada; Ni Luh Widyasari; Ni Putu Meilda Florenzia Ekayanti
Jurnal Ecocentrism Vol. 3 No. 2 (2023): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan Unmas Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36733/jeco.v3i2.7488

Abstract

Tukad Pakerisan is one of the largest rivers in Bali that crosses Gianyar Regency. The increase in population has caused the function of Tukad Pakerisan to decline and become polluted. This study aims to determine the quality and status of quality in the upstream, middle and downstream of Tukad Pakerisan. The results showed that the quality of Tukad Pakerisan in the upstream section had parameters that exceeded the quality standards, namely Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Dissolved Oxygen (DO) and Phosphate. In the middle part, the parameters that exceed the quality standard are Dissolved Oxygen (DO) and Fecal Coliform. On the downstream side, parameters that exceed quality standards are Dissolved Oxygen (DO) and Phosphate. While the results of the calculation of the Pollution Index (IP) at the upstream point are 1.76; midpoint 1.80; and downstream point 1.13 with slightly polluted status.
Beban Kerja dan Produktivitas Kerja Operator Traktor Tangan Pada Pembajakan Sawah ’Subak Ayo’ di Desa Babahan, Kecamatan Penebel, Kabupaten Tabanan Bali I Made Nada; Gede Arda; Ida Ayu Rina Pratiwi Pudja
Rona Teknik Pertanian Vol 7, No 1 (2014): Volume 7, No. 1, April 2014
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v7i1.2641

Abstract

Abstrak. Penelitian dengan metode survei, dari hasil penelitian diperoleh beban kerja objektif pekerja 1  dengan denyut nadi per menit pada pembajakan sawah datar, saat memindahkan traktor tangan dari sawah satu ke sawah yang lain dan miring masing-masing yaitu 111/menit, 123/menit dan 125/menit serta pekerja 2 dengan denyut nadi per menit pada pembajakan yang sama yaitu 114/menit, 120/menit dan 120/menit. Beban kerja subjektif pekerja 1 dengan keluhan sistem muskuloskeletal pada pembajakan sawah datar dari agak sakit 50% dan sakit 28,57%, pada saat memindahkan traktor tangan dari sawah satu ke sawah yang lain dengan prosen keluhan agak sakit5 3,57%, sakit 32,14% dan sakit 3,57%, dan pada sawah miring  dengan prosen keluhan agak sakit 60,71% dan sakit 50% serta pekerja pada pembajakan yang sama mempunyai keluhan muskoluskeletal masing-masing yaitu agak sakit 10,71% , 21,43%  dan agak sakit 25%. Produktivitas pekerja 1 dan pekerja 2 yaitu luas sawah per hari 10,45 are dengan penghasilan sebesar Rp.188,100 dan luas sawah 16,09 are dengan penghasilan sebesar Rp. 289,620 Productivity and Work Load of Hand Tractor Operator for Plowing Field of Subak Ayo’ in Babahan Village, Sub-district of Penebel, Tabanan BaliAbstract. This research was conducted by survey method. The results showed that operator’s objective load of operator 1 showed heartbeat per minutes when he plough flat and sloping land, when he moved his hand tractor from one part to other  fields were 111 heartbeats/minute, 123 heartbeat/minute and 125 heartbeat per minute respectively. Operator 2 working in the same works include 114 heartbeats/minute, 120 heartbeats/minute and 120 heartbeats/minute. Operator’s subjective load on operator 1 showed musculoskeletal system lamentation  on flat land  plough that were 50% less painful, and 28,57% painful when he moved the hand tractor on with percentage of lamentation were 53.57% less painful, 32.14 painful, and 3.57% very painful. On the other hand, he showed the percentage of lamentation on slopping land were 60.71 less painful, 50% painful. The research also found that the operators showed musculoskeletal system lamentation, that were 10.71% less painful and 21,43% painful and 25% very painful. Operator’s productivity of operator 1 and 2 per day was 0,11 hectare with income Rp. 188.100 and on 0,16 hectare, it generated income as high as Rp. 289,620.
Analisis Kapasitas Saluran Drainase di Jalan Tukad Yeh Aya Renon Denpasar Ida Bagus Suryatmaja; Anak Agung Ratu Ritaka Wangsa; I Made Nada; I Wayan Gede Pasek Perdana
Jurnal Ilmiah Kurva Teknik Vol. 12 No. 2 (2023): Jurnal Ilmiah Kurva Teknik
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Mahasaraswati Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36733/jikt.v12i2.7832

Abstract

Kota Denpasar di Bali adalah sebuah kota pariwisata yang penting, dan pemerintah setempat sangat memperhatikan faktor-faktor yang mempengaruhi kunjungan wisata. Salah satu cara yang dilakukan adalah dengan menjaga kebersihan dan kesehatan lingkungan. Namun, perubahan tata guna lahan dapat memiliki dampak negatif, seperti berkurangnya daya resap tanah dan meningkatnya limpasan permukaan yang bisa menyebabkan banjir. Faktor penyebab banjir di Jalan Tukad Yeh Aya Renon Denpasar adalah keberadaan sampah yang menyumbat saluran drainase dan kapasitas saluran yang tidak mencukupi. Penelitian ini bertujuan untuk mengevaluasi kapasitas pada saluran drainase. Metode yang digunakan dalam penelitian ini adalah metode deskriptif-kuantitatif dengan pengukuran dan pemantauan kondisi drainase dan kondisi banjir pada lokasi penelitian. Hasil evaluasi perhitungan dan perbandingan, kapasitas pada saluran drainase di seluruh titik saluran tidak memenuhi dari hasil debit banjir rancangan. Pada analisis program HEC-RAS, debit air melebihi dari kapasitas pada saluran, sehingga akan mengakibatkan terjadinya banjir. Alternatif untuk mengatasi banjir adalah melakukan normalisasi saluran dengan pembersihan sedimentasi akibat sampah dan endapan serta pemeliharaan struktur bangunan saluran drainase.
ANALISIS PERBANDINGAN KEKAKUAN DAN KEKUATAN STRUKTUR BAJA DENGAN SISTEM STRUKTUR DIAGRID DAN KONVENSIONAL PADA BANGUNAN ASIMETRIS I Putu Agus Putra Wirawan; I Made Nada; Kadek Yudistira Mahendra Putra
Jurnal Ilmiah Kurva Teknik Vol. 13 No. 1 (2024): Jurnal Ilmiah Kurva Teknik
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Mahasaraswati Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36733/jikt.v13i1.9053

Abstract

Sistem struktur diagrid merupakan salah satu alternatif struktur untuk memperkecil menahan beban lateral yang bekerja pada suatu struktur. Sistem struktur ini bertujuan untuk meningkatkan kekakuan dan kekuatan pada suatu bangunan, selain itu diagrid juga dinilai memberikan tampilan yang lebih estetis. Dalam penelitian ini, perbandingan kekakuan dan kekuatan sistem struktur diagrid dan konvensional atau sering dikenal sebagai sistem struktur rangka baja pemikul momen (momen frame) analisis ini dilakukan menggunakan aplikasi SAP2000. Kekakuan dan kekuatan struktur yang akan ditinjau meliputi stress ratio, simpangan dan drift ratio. Dalam penelitian ini hasil yang diperoleh yaitu stress ratio pada kedua sistem adalah kurang dari 1, simpangan struktur diagrid lebih kaku 20% untuk lantai 6 dan 29% untuk lantai 10 dibandingkan dengan struktur konvensional. Dapat disimpulkan bahwa sistem struktur diagrid lebih baik dari pada sistem struktur konvensional.
ANALISIS KAPASITAS AIR PADA SALURAN DRAINASE DI JALAN ANTASURA DAERAH PEGUYANGAN KAJA DENPASAR UTARA ANAK AGUNG RATU RITAKA WANGSA; IDA BAGUS SURYATMAJA; I MADE NADA
GANEC SWARA Vol 18, No 1 (2024): Maret 2024
Publisher : Universitas Mahasaraswati K. Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v18i1.780

Abstract

Drainage is a system created to overcome the problem of excess water above ground and water below ground. The performance of the drainage system is determined by using good construction techniques, carrying out routine and periodic maintenance. Heavy rains not only cause surface water runoff but also urban surface water runoff which forms puddles of water due to the low carrying capacity of the drainage system. One of the areas that experienced flooding in the city of Denpasar was Jalan Antasura in the Peguyangan Kaja area, North Denpasar, which was caused by blockage of channels by sediment caused by rubbish. This research monitors and evaluates rainfall, flood discharge and water capacity in drainage channels. The results of the calculation evaluation and comparison with HEC-RAS modeling show that the water capacity in the drainage channel at the 0-800 m point does not meet the design flood discharge results for all return periods, so it is predicted that the drainage channel will cause flooding, while the water capacity in the drainage channel at the point 800-1000 m still meets the design flood discharge at the 2 year and 5 year return periods, but does not meet the 10 year return period, so it is predicted that the drainage channel will still meet capacity if channel normalization is carried out every year.
ANALISIS EFISIENSI SALURAN DAN EFEKTIVITAS DAERAH IRIGASI OONGAN PADA DAERAH ALIRAN SUNGAI (DAS) TUKAD AYUNG KRISNA KURNIARI; I MADE NADA; I GEDE SUADNYANA
GANEC SWARA Vol 17, No 4 (2023): Desember 2023
Publisher : Universitas Mahasaraswati K. Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v17i4.652

Abstract

The Oongan Irrigation Area, which is located in East Denpasar as part of the Tukad Ayung River Basin, has a potential land area of 1781 Ha, but only 617 Ha has been utilized. In March 2019, the average discharge reached 680 l/second, while the Oongan intake gate required a discharge of 880.7 l/s for the rice growing period. Based on these data, there is a need for in-depth research in the Oongan Irrigation Area regarding the efficiency and effectiveness of irrigation canals.. The research method used is the survey method. Based on the results of the analysis of the efficiency of the primary and secondary canals and the effectiveness of the Oongan Irrigation Area, the percentage results were 80.47%, 94.1% and 35% which showed that the primary canal was not efficient and irrigation that was not effective was below the standard value, namely 90% and 55%. There needs to be an improvement both in the water management system and the physical improvement of irrigation infrastructure. Meanwhile, secondary canals get an average yield with a percentage of 94.1% which is included in the efficient category so that it needs to be maintained and carried out maintenance through operational and maintenance activities on irrigation canals.
EFEKTIVITAS PENGOLAHAN SAMPAH DI PUSAT DAUR ULANG MENGWITANI Nada, I Made; Satya Graha, I Made; Wahyu Wijaya, I Made; Intan Yuni Antari, Ni Kadek
Jurnal Ecocentrism Vol. 4 No. 2 (2024): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan, Fakultas Teknik, Universitas Mahasaraswati Denpasar, Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

One of the issues arising from the increasing population every year, along with the increase in activities and consumption of residents in Mengwi District, is the increase in waste generation. The purpose of this study is to determine the effectiveness of waste management at the Mengwitani Recycling Center (PDU). This research uses a quantitative method, where the effectiveness measurement is conducted through the inventory of waste processing units at the Mengwitani Recycling Center (PDU). The inventory data is used to compile the mass balance of the waste entering and exiting each processing unit for data analysis in determining the effectiveness of waste management at the Mengwitani Recycling Center (PDU). The effectiveness of waste management at the Mengwitani Recycling Center (PDU) was determined by the total waste intake over a year from June 2023 to June 2024, which reached 236,911.18 kg. Of this, the total wet organic waste amounted to 219.53 kg, and inorganic waste to 2,086.11 kg. The total residue reached 233,999.62 kg, with 233,999.62 kg of waste being incinerated. The incinerated waste produced 73,905.33 kg of ash, resulting in an average total waste reduction percentage at the Mengwitani PDU over one year of 70.14%.
UJI KUALITAS AIR PADA SUMBER MATA AIR SUNGAI AYUNG MENGGUNAKAN METODE INDEKS PENCEMARAN Nada, I Made; Mahendra Dewi, Ni Luh Putu; Satya Graha, I Made; Windu Dwipayana, Made
Jurnal Ecocentrism Vol. 4 No. 2 (2024): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan, Fakultas Teknik, Universitas Mahasaraswati Denpasar, Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Ayung River spring water source is used by the community for religious activities such as melukat and for bathing water, of course it is necessary to pay attention to the quality of the spring water source. The water quality at the Ayung River spring water source can be determined by testing the water quality using physical, chemical and biological parameters. The test results are adjusted to the water quality standards table based on Bali Governor Regulation Number 16 of 2016 to determine the quality of water that has been tested. Then the test result were analyzed using the Pollution Index (IP) method to determine the level of water pollution at the Ayung River spring water source. Based on the result of the analysis, it was found that at point 1 Beji Karang Dalem got an IP score of 1.36 with a lightlu polluted status and at point 2 Pesiraman Dukuh Sakti got an IP score of 1.75 with a lightly polluted status.
ANALISIS PENYELIDIKAN KARAKTERISTIK TANAH KOTA DENPASAR MENGGUNAKAN METODE BOR TANGAN, DAN UJI LABORATORIUM UMPUR, LEONARDA SAPUTRI; KURNIARI, KRISNA; DIPUTERA, I GEDE ANGGA; LESTARI, I GUSTI AGUNG ISTRI; WARID, MOH; NADA, I MADE
GANEC SWARA Vol 18, No 1 (2024): Maret 2024
Publisher : Universitas Mahasaraswati K. Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v18i1.765

Abstract

Soil investigations in the form of hand boring, SPT tests, and laboratories were carried out on Jalan Pura Demak Denpasar City. The purpose of this study is to determine the characteristics of the soil in the area. Handboring results showed 0 to 2.5 m of clay soil, depth of 2.5 to 3.5 m of sandy silt rock tuff, depth of 3.5 to 4 m sandy clay, depth of 4 to 10 m sandy rock. SPT test results obtained values of 12 at depths of 0 to 2.5 m, at depths of 2.5 to 3.4 m are 40 and at depths of 4 to 10 m are 43-50. Based on laboratory tests, the following soil characteristics were obtained: the moisture content at a depth of 1 m is 39.65% and at a depth of 5 m is 15.39%. Specific gravity at a depth of 1 m = 2.778, at a depth of 5 m = 2.543. Compressive strength 0.310 kg/cm2 and cohesion 0.155 kg/cm2 at a depth of 1 m. Direct shear strength at a depth of 5 m, cohesion of 0.00 kg/cm2 and shear angle of 35.30°. The results of the filter analysis for sample tests at a depth of 1 m were 80.69% clay, 13.96% silt, 5.05% fine sand, and 0.40% medium sand. At a depth of 5 m is loam + silt 29.80%, fine sand 22.47%, medium sand 25.25%, coarse sand 8.08%, and small gravel 14.39%.
Co-Authors Anak Agung Ratu Ritaka Wangsa DWIYANTI, NI MADE MEILAN FLORENZIA Frederikus Marung Gede Arda I Gede Angga Diputera I Gede Ngurah Sunatha I Gede Oka Darmayasa I GEDE SUADNYANA I Gusti Agung Ayu Istri Lestari I Kadek Aditya Setyawan I Kadek Wahyu Wiguna I Ketut Diartama Kubon Tubuh I Made Anom Sutrisna Wijaya I Made Dwi Dharma Setiawan I Made Laksana Wira Saputra I Made Sastra Wibawa I Made Satya Graha I Made Suardana I Made Wahyu Wijaya I Nyoman Sucipta I Putu Agus Putra Wirawan I Putu Gede Budisanjaya I Wayan Arsa I Wayan Eka Sagita Putra I Wayan Gede Pasek Perdana I Wayan Redana IDA AYU RINA PRATIWI PUDJA Ida Bagus Suryatmaja Intan Yuni Antari, Ni Kadek Juniastra, I Made Kadek Yudistira Mahendra Putra Krisna Kurniari MADE MERTA Mahendra Dewi, Ni Luh Putu Ni Gst. Ag. Gde Eka Martiningsih Ni Kadek Sriartha Dewi Ni Ketut Sri Astati Sukawati Ni Luh Made Ayu Mirayani Pradnyadari NI LUH WIDYASARI Ni Made Eva Yulia Dewi Ni Nyoman Sulastri Ni Putu Meilda Florenzia Ekayanti Pande Putu Indra Yoginugraha Paul Ludgerius Rusman Pita Rina Pratiwi Pudja I. A Sumiyati Sumiyati Sumiyati Sumiyati Tjokorda Istri Praganingrum UMPUR, LEONARDA SAPUTRI Vebrian Kenedy, Fransiskus Warid, Moh Wayan Anik Wahyuni Wayan Citra Wulan Sucipta Putri Windu Dwipayana, Made Wiratama, I Gusti Ngurah Made Wiswasta, I Gusti Ngurah Alit Yana, Anak Agung Gde Agung Yohanes Setiyo