Teknik Sipil dan Arsitektur
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INOVASI ECO-FRIENDLY SELF COMPACTING CONCRETE MENGGUNAKAN SERBUK CANGKANG TELUR, SERBUK GRANIT, DAN LIMBAH BETON UNTUK MENGURANGI LIMBAH DI INDONESIA
Get PDFPerkembangan dunia teknik sipil mengalami kemajuan yang sangat pesat di era society 5.0 dan gencarnya pembangunan infrastruktur di tanah air. Beton SCC merupakan beton yang inovatif yang tidak memerlukan getaran ataupun alat pemadat karna baton SCC dapat memadat sendiri. Banyaknya kebutuhan akan material menyebabkan terjadinya penambangan ilegal yang akan merusak lingkungan. Oleh karena itu, perlu adanya alternatif lain untuk mengurangi eksploitasi alam yang semakin lama akan berdampak buruk bagi lingkungan. Tujuan dari penelitian ini yaitu pemanfaatan serbuk cangkang telur dan serbuk granit digunakan sebagai subtitusi agregat halus, limbah beton digunakan sebagai subtitusi agregat kasar. Material serbuk cangkang telur berasal dari limbah cangkang telur yang telah dihaluskan dan memiliki kandungan kalsium karbonat (CaCO3) tinggi. Dalam proses produksi granit, 30% dari setiap lempengan berubah menjadi lumpur batu. Limbah tersebut sering dimuat ke dalam truk untuk dibawa pergi dan dibuang ke alam. Limbah beton adalah material sisa beton yang sudah tidak terpakai lagi untuk konstruksi.. Hasil pengujian yang dilakukan menunjukan hasil optimum masing-masing inovasi adalah 40% serbuk cangkang telur, 20% serbuk granit dan 20% limbah beton. Okamura dan Ouichi menyatakan bahwa dalam pembuatan beton SCC, agregat halus harus lebih tinggi daripada agregat kasar. Inovasi beton SCC ramah lingkungan menggunakan serbuk cangkang telur, serbuk granit, dan limbah beton mampu menghasilkan kuat tekan >41,4 MPa dan dapat menghemat biaya Rp. 407.739 /m3 dari harga beton SCC tanpa menggunakan inovasi atau setara dengan 25,92 % lebih ekonomis.
Kata kunci: Self compacting concrete, beton ramah lingkungan, serbuk cangkang telur, serbuk granit, limbah beton, ekonomis
ANALISIS GEOTEKNIK DAN KESTABILAN LERENG TOWER SUTT PT. PLN (Studi kasus: TW. 203 Pembangunan T/L 150 KV GI KAMBANG – GI TAPAN): ANALISIS GEOTEKNIK DAN KESTABILAN LERENG TOWER SUTT PT. PLN (Studi kasus: TW. 203 Pembangunan T/L 150 KV GI KAMBANG – GI TAPAN)
No full textSlope instability is caused by several lithological and structural factors, slope geometry, relative relief, ground water, as well as changes in use and land cover. Mountainous areas, development and expansion of infrastructure networks can inadvertently cause natural slope shifts, thereby negatively impacting the stability of the excavated slope. Analysis of the geotechnical properties of soil and rock is important for understanding and predicting the possibility of landslides at certain locations. Geotechnical analysis is needed to carry out slope stability analysis which is carried out using GEO5 software. Construction of T/L 150 KV GI Kambang – GI Tapan, Tower TW. 203 with a tower structure at the top of the slope. Based on these conditions, a comprehensive study is needed to analyze the stability of natural slopes due to tower loads. Soil Type, Parameters c' and ?' (Drained), Parameters Cu and ? (Undrained) and soil properties index are based on CPT test results. The Bishop, Spencer, Janbu and Morgenstern-Price methods on natural slopes, tower loads, Natural with Tower+Pile Loads, Natural Slopes with Tower+Pile Loads, Earthquake Loads produce a safe condition against failure in Short-Term (Construction) and Long-Term conditions. Term (Operational). Analysis of the Fellenius method on natural slopes and tower loads in Short-Term (Construction) and Long-Term (Operational) conditions shows unsafe conditions. The safety factors resulting from the Bishop, Spencer, Janbu and Morgenstern-Price methods do not show significant differences in values
PERENCANAAN STRUKTUR KANTOR PHICOS DENGAN SISTIM RANGKA BAJA PEMIKUL MOMEN KHUSUS
Get PDFColomadu is the name of a district in Karanganyar Regency, Central Java. Colomadu's economic growth can grow through the goods and services business, tourism, and industry so that an office building is planned in the Colomadu area. Because the location of Colomadu District is not far from the province of Yogyakarta, where earthquakes often occur, an earthquake-resistant building is needed to anticipate a minimum number of casualties and material losses during an earthquake. Therefore, in planning this office, a special moment resisting frame system (SRPMK) is used. The building with the Special Moment Bearing Frame System (SRPMK) is planned with the concept of Strong Column and Weak Beam (strong column and weak beam). This planning aims to plan a building structure that is resistant to earthquake loads that will be received by the structure using a special moment-bearing frame structure system and refers to the applicable requirements in accordance with SNI 2847: 2019. Earthquake loads are reviewed using the spectrum response method and structural analysis is carried out with the help of the ETABS V9.7.4 program. From the planning results, the dimensions of the bondek floor plate thickness of 140 mm, beams B1A 150x400 mm, B2A 200x400 mm, B2B 200x400 mm, B2C 200x400 mm, B2D 200x400 mm, B2E 200x400 mm, B3A 200x500 mm, B3B 200x500 mm, B4A 300x150 mm, B5A 300x150 mm, BS 150x300 mm, and columns KP 150x150 mm, K1A 200x300 mm, K2A 400x550 mm, K3A 450x650 mm, and K4A 350x500 mm
ANALISIS KESELAMATAN JALAN DENGAN PENDEKATAN AUDIT KESELAMATAN JALAN PADA JALAN LOKAL DI KOTA TEGAL
Get PDFJalan Sultan Hasanudin – KH. Abdul Ghoni, which is located in Tegal City, Central Java, is a road with a secondary local function which is an alternative way to get to primary roads. By being an alternative road, this road section must meet adequate road safety standards. To improve traffic safety, it is necessary to carry out a road safety audit. This research aims to see the level of road safety in Tegal City, specifically on the Jalan Sultan Hasanudin - Jalan KH section. Abdul Ghoni. The method used in this research is descriptive quantitative obtained from the Hawkeye survey and processed using the Hawkeye processing toolkit software to analyze the data. The research results show that the Sultan Hasanudin – KH. Abdul Ghoni, in the aspect of road equipment facilities, there are 7 road equipment facilities in a damaged condition, in the aspect of the level of road unevenness in the medium category it has a percentage of 45% of the total length of the section, and for the aspect of the transverse slope on the Jl. Sultan Hasanuddin – KH. Abdul Ghoni has not met the standard for the transverse slope of asphalt pavement. Improved safety on the Jl. Sultan Hasanudin carried out further handling and improvements to road equipment and road pavement facilities, so that the Jl. Sultan Hasanuddin – KH. Abdul Ghoni does not have the potential to cause traffic accidents due to deficiencies in road infrastructure or dangerous road conditions
Intensitas Pencahayaan Alami dan Kenyamanan Visual Untuk Aktivitas Kerja pada Area Semi-Outdoor Cafe di Kota Bandung
Get PDFCahaya alami maupun buatan memiliki peran penting bagi kehidupan manusia untuk beraktivitas, salah satunya adalah bekerja. Indonesia yang terletak di wilayah beriklim tropis mendapatkan cahaya matahari yang banyak. Salah satu peran cahaya alami adalah menciptakan kenyamanan visual pada ruang kerja. Dengan munculnya virus Covid-19 di Indonesia, terjadi perpindahan ruang kerja dari kantor ke rumah dan café. Para pengunjung yang bekerja di café lebih memilih area terbuka untuk menghindari penularan virus Covid-19. Namun area terbuka juga tidak terlepas dari pengaruh cuaca sehingga area semi-outdoor dapat menjadi pilihan yang tepat untuk bekerja. Penelitian ini bertujuan untuk mengetahui intensitas pencahayaan alami pada area semi-outdoor di sebuah café yang ada di kota Bandung. Data pencahayaan pada studi kasus didapatkan dengan bantuan luxmeter, sedangkan analisis dilakukan dengan bantuan Analisis dilakukan dengan membandingkan antara data pengukuran langsung maupun data software dengan standar yang telah ditetapkan. Hasil analisis menunjukkan bahwa intensitas cahaya pada studi kasus ini berada di atas standar yang telah ditentukan. Hal tersebut dipengaruhi oleh berbagai hal, antara lain orientasi dan bentuk bangunan, material yang digunakan pada elemen pelingkup ruang arsitektur dan furniture, jenis bukaan, dan strategi desain bukaan yang dipakai untuk memasukkan cahaya ke dalam bangunan
OPTIMASI WAKTU DAN BIAYA PADA PROYEK BENDUNGAN SELESAI (STUDI KASUS PADA PROYEK PEMBANGUNAN BENDUNGAN BENDO TAHAP 2)
No full textThe implementation of a project will not be separated from three factors, namely quality, time and cost. Time and cost factors can be calculated carefully and can be optimized. This needs to be done to evaluate the performance of a project, so that it becomes a lesson for the next project. This study aims to measure project performance, create optimal reschedules, optimal crash programs and calculate the time effectiveness and cost efficiency of rescheduling made in the Phase 2 Bendo Dam project. The method used in this study is the earned value and crash program with the data needed in this study is the Budget Plan (RAB), Time Schedule, Project Monthly Reports and Project Financial Reports. Then an analysis of the time and cost performance of the project is carried out, as well as calculating the optimization of alternatives for adding overtime hours and adding labor so that an optimal comparison of time and costs is obtained from the several alternatives. The results of the project performance using the earned value method in terms of costs are more accurate starting from the 18th month to the 25th month, as well as the completion time according to the planned time schedule. Meanwhile, the optimal rescheduling and crash program is adding workers with a cost efficiency of 0.66% of the total cost with a normal duration and time effectiveness of 88 calendar days
DAMPAK PEMBANGUNAN ABDUL RASYID TOWER TERHADAP PERUBAHAN ARUS LALU LINTAS DI KABUPATEN KOTAWARINGIN BARAT
Get PDFIn line with population growth, Pangkalan Bun City has now expanded to include linear pathways or the surrounding area, not only in the city center. This has resulted in the City of Pangkalan Bun having many large trading centers and one of them is the construction of the Abdul Rasyid Tower on Jalan Udan Said in front of the CBI Group head office, Pangkalan Bun, West Kotawaringin Regency, which will result in congestion / attraction of new trips in Pangkalan Bun City.
Data collection was carried out by means of a direct survey at the Abdul Rasyid Tower intersection on Jalan Udan Said during peak hours in the morning, afternoon and evening from 06.00 – 18.00 WIB. From the survey results, grouping was carried out on each segment at the intersection and presented in the form of a vehicle table. In calculating the savings analysis using the 1997 Indonesian Highway Capacity Manual and Vissim Software. Traffic performance around the Abdul Rasyid Tower project site at the time prior to construction according to MKJI 1997 calculations, the biggest delay at the afternoon intersection at the first intersection was 7,45 second. The results of the Vissim Software the biggest intersection delay occurred in the morning at the first intersection, which was 7,98 second. Traffic performance around the Abdul Rasyid Tower project site during construction according to MKJI 1997 calculations, the largest intersection delay occurred in the afternoon at the first intersection of 9,47 second. The results of the Vissim Software, the biggest delay at the intersection occurred in the afternoon at the first intersection at 9,89 second. Traffic performance around the Abdul Rasyid Tower project site during post-construction according to MKJI 1997 calculations, the largest intersection delay during the day at the first intersection was 7,78 second. The results of the Vissim Software, the largest delay at the first intersection during the day is 8,21 second
ANALISIS EFISIENSI BIAYA DALAM PENYEDIAAN AIR LAUT UNTUK OCEANARIUM KOTA: STUDI KASUS BXSea BINTARO: -
Get PDFThis research focuses on assessing how to procure seawater for the BXSea Bintaro Oceanarium, which is located far from natural seawater sources. The two main options analyzed were the purchase of seawater directly from the coast and the creation of artificial seawater. The research method used in this study was conducted through a qualitative, case study approach by combining literature study, field observation, and the researcher's experience as an oceanarium designer, to gain an in-depth understanding of the technical, economic, and environmental aspects associated with both ways of seawater procurement. The results show that the use of native seawater is more economical and environmentally friendly than artificial seawater. Analysis of the initial costs, long-term operational costs, and logistical and environmental implications of both methods showed the superiority of direct seawater procurement. This method is not only efficient in reducing logistical complexity and initial investment, but also has minimal environmental impact. The conclusions of this study confirm that natural seawater procurement is a cheaper option than the use of artificial seawater. Artificial seawater is significantly up to 5.58 times higher than natural seawater. This study makes an important contribution to the literature of seawater resource management in educational and recreational facilities, and underscores the importance of a sustainable approach in oceanarium development.Penelitian ini berfokus pada pengkajian cara pengadaan air laut untuk Oceanarium BXSea Bintaro, yang berlokasi jauh dari sumber air laut alami. Dua opsi utama yang dianalisis adalah pembelian air laut langsung dari pantai dan pembuatan air laut buatan. Metode penelitian yang digunakan dalam penelitian ini dilakukan melalui pendekatan kualitatif, studi kasus dengan menggabungkan studi literatur, observasi lapangan, dan pengalaman peneliti sebagai desainer oceanarium, untuk memperoleh pemahaman mendalam tentang aspek teknis, ekonomis, dan lingkungan yang terkait dengan kedua cara pengadaan air laut tersebut. Hasil penelitian menunjukkan bahwa penggunaan air laut asli lebih ekonomis dan ramah lingkungan dibandingkan dengan air laut buatan. Analisis biaya awal, biaya operasional jangka panjang, serta implikasi logistik dan lingkungan dari kedua metode tersebut menunjukkan keunggulan pembelian air laut langsung. Cara ini tidak hanya efisien dalam mengurangi kompleksitas logistik dan investasi awal, tetapi juga minim dampak lingkungan. Kesimpulan penelitian ini menegaskan bahwa pengadaan air laut alami merupakan pilihan yang lebih murah dibandingkan penggunaan air laut buatan. Air laut buatan secara signifikan mencapai 5,58 kali lebih tinggi dibandingkan dengan air laut alami. Studi ini memberikan kontribusi penting pada literatur manajemen sumber daya air laut di fasilitas pendidikan dan rekreasi, serta menggarisbawahi pentingnya pendekatan berkelanjutan dalam pengembangan oceanarium
ANALISIS INFRASTRUKTUR PENDUKUNG PARIWISATA DI LABUAN BAJO, KABUPATEN MANGGARAI BARAT DAN KABUPATEN ENDE
Get PDFPariwisata memiliki potensi untuk dikembangkan menjadi sektor unggulan di Nusa Tenggara Timur khususnya beberapa destinasi wisata sudah dikenal dunia, seperti Taman Nasional Komodo hingga ikon Taman Nasional Kelimutu yang menjadi salah satu pemasukan pendapatan daerah sektor pariwisata. Pekembangan pariwisata ditunjukan dari meningkatnya jumlah wisatawan setelah pendemi COVID-19 berakahir. Jumlah kunjungan wisatawan di Labuan Bajo, kabupaten Manggarai Barat pada tahun 2022 meningkat sampai 69.20% dan kabupaten Ende pada tahun 2022 jumlah wisatwan meningkat 86,02%. Penelitian ini bertujuan untuk menganalisis kecukupan infrastruktur pendukung aktivitas pariwisata di Labuan Bajo, kabupaten Manggarai Barat dan kabupaten Ende. Pengumpulan data dilakukan di dua tempat yaitu Labuan Bajo, kabupaten Manggarai Barat dan kabupaten Ende secara langsung dengan menyebarkan kuesioner yang ditujukan kepada responden. Subjek dalam penelitian ini adalah 44 wisatawan mancanegara, wisatawan domestik dan tour guide untuk menilai kecukupan infrastruktur pariwisata di Labuan Bajo dan 44 wisatawan mancanegara, wisatawan domestik dan tour guide untuk menilai kecukupan infrastruktur pariwisata di kabupaten Ende. Instrumen penilaian menggunakan American Society of Civil Engineers. Hasil dari penelitian dari 44 responden menunjukan secara keseluruhan infrastruktur pendukung aktivitas pariwisata di Labuan Bajo, kabupaten Manggarai barat meperoleh rating ( 73,52%) dengan grade “Cukupâ€Â, sedangkan 44 reponden menunjukan secara keseluruhan infrastruktur pendukung aktivitas pariwisata di kabupaten Ende memperoleh rating (69,12%) dengan grade “Burukâ€Â. Hasil perbandingan studi yang di lakukan pada tahun 2017 dan studi pada tahun 2023 infrastruktur pariwisata di Labuan Bajo, kabupaten Manggarai Barat menunjukan ada peningkatan. Peningkatan itu dilihat dari hasil akhir nilai rata-rata dari 12 infrastruktur yang telah dianalisis, yang mana infrastruktur pariwisata di tahun 2017 mendapat nilai akhir “D†(Buruk). Sedangkan infrastruktur pariwisata di Labuan Bajo, kabupaten Manggarai Barat di tahun 2023 mendapat nilai akhir “C†(Cukup) dengan rating 73.52
ANALISIS KINERJA STRUKTUR PADA GEDUNG BERTINGKAT DENGAN ANALISIS PUSHOVER BERDASARKAN ATC-40: ANALISIS KINERJA STRUKTUR PADA GEDUNG BERTINGKAT DENGAN ANALISIS PUSHOVER BERDASARKAN ATC-40
No full textIndonesia is an area prone to earthquakes. Earthquakes can cause infrastructure damage and casualties. Efforts are needed to reduce the risk of earthquake hazards by strengthening earthquake-resistant infrastructure. The design procedures for earthquake-resistant buildings are carried out using a performance-based design approach. Building performance can be estimated through non-linear static pushover analysis. This research takes a case study in Jongke Market, Surakarta. This research aims to determine the capacity curve, performance level, and structure collapse mechanism. The method used is pushover analysis with the capacity spectrum. The result of this analysis is a capacity curve that processed to determine the level of structure performance referring to the drift ratio limitation table in the Applied Technology Council (ATC-40). Based on the results of this research, displacement that occurred in the x direction is 92 mm and in the y direction is 77 mm. Building displacement is good because the displacement that occurred is smaller than the displacement limit (control). The total maximum drift in the x direction is 0.007 and in the y direction is 0.006. The maximum inelastic total drift in the x direction is 0.005 and in the y direction is 0.004. Based on the drift ratio limitation table in the ATC-40 document, this building has an immediate occupancy performance level. Based on the plastic hinge mechanism formed, the existing structure also meets the ideal collapse concept (strong column-weak beam)