7 research outputs found
High Accuracy Geodetic Control Point Measurement Using GPS Geodetic With Static Methods
No full textAbstract. The quality of the coordinates of the points in a generally horizontal control network will be influenced by many factors, such as the system equipment used for measuring / observation, the network geometry, measurement strategies / observation, as well as data processing strategy implemented. Using development of the GPS satellite system, since 1989, the network provision of horizontal control points in Indonesia generally relies on the GPS satellite observations. One way of measuring geodetic control points with high accuracy is using geodetic GPS. Measurement of geodetic control points required as a control in the execution of the work and as a correction coordinate measurement of the position of a measurement object with a high degree of accuracy (± 1 cm). How many measurement methods that can be done. This research conducted measurement using static method. Static surveys are used to determine the coordinates of the control points are relatively distant from each other as well as order accuracy requires relatively higher. The measurement results obtained coordinate data for point 1 is 6 ° 57 '31.92207 "LS; 109 ° 38 '32.25194 "BT; high (ellipsoid) 34 320 m and point 2 is 6 ° 57 '33.59086 "LS; 109 ° 38 '37.87710 "BT; high (ellipsoid) 36 235 m
Analysis Effect of Variation Form and Dimension on Structure Reinforced Concrete Column in Kali Kendeng Bridge
No full textAbstract. Square columns is a rectangular column which has a single stirrup shape and wide distances in - between. In addition, the round column is a column with a spiral section and has a relatively short distance or a relatively smaller distance in - between. Parameters in column planning include reinforcement requirements, column slenderness, buckling factors, interaction diagrams, and ductility. The study used existing rectangular column data with dimensions of 3.5x3.5 m from Kali Kendeng Bridge in the Semarang-Surakarta Toll Road Construction Project. From the field data, variations in the shape of the columns became rounded columns by calculating the moment of inertia of the two cross sections. Variations in dimensions was performed by calculating reinforcement ratio requirements, aiming to produce an effective column design. The first step is to analyze the bridge loading with earthquake loading SNI for the 2833: 2016 bridge and SNI loading for the bridge 1725: 2016. After that, do the calculation of reinforced concrete column requirements and be checked through the SAP2000 application. Then analyze SAP2000 output, so that the moment and shear forces are obtained in square and round columns. Then with the same material that is 30 MPa quality concrete and 390 MPa quality steel, the results obtained slenderness, bending factor and the radius of inertia between square and round columns are the same. The maximum moment value in a square column is 60704.8718 kN-m and the maximum shear is 2358.14 kN. In addition, the round column obtained a maximum moment of 60685.1944 kN-m and a maximum shear of 2358.65 kN. An overview of the relative ductility aspect of 2.7 kN between square and round columns and the ductility value shows the reduced cross-sectional area the smaller the ductility value. Therefore, it is concluded that a round column is better in terms of holding moment and sliding, than a square shaped column
PERENCANAAN STRUKTUR ATAS GEDUNG APARTEMEN 15 LANTAI DI YOGYAKARTA
No full textMuhammad Luthfil Hakim H.U,2024. “ Perencanaan Struktur Atas Beton
Bertulang Gedung Aparttemen 15 Lantai Sleman Yogyakarta” Program Studi
S1 Teknik Sipil, Fakultas Teknik, Universitas Negeri Semarang.
Dosen Pembimbing Arie Taveriyanto , S.T., M.T.
Yogyakarta berada pada daerah dengan kategori wilayah rawan gempa,
untuk meminimalisisr kerusakan bangunan dan keselamatan masyarakat
sekitar serta penghuni appartemen akibat gempa maka dibuatlah dengan
metode Sistem Rangka Pemikul Momen Khusus (SRPMK).
Data yang digunakan dalam menyususn skripsi di peroleh dari library
research. Permodelan struktur menggunakan softweare ETABS V22 untuk
mendapatkan output gaya dalam dan analisis nya dihitung untuk mengetahui
kekuatan struktur bangunan menggunakan Excel, dan untuk mendesain
komponen-komponen struktur di desain menggunakan softweare AutoCAD
2013.
Dari hasil analisis dan perhitungan, didapaitkan hasil, memperoleh hasil
sebagai berikut. Dimensi Kolom tipe K1 80 x 80 cm. Balok Induk 30 x 60 cm
dengan dimensi balok dan kolom tersebut dinytakan aman, maka dapat di
simpulkan dengan metode Sistem Rangka Pemikul Momen Khusus (SRPMK)
dapat menghasilkan kekakuan struktur yang besar.
Kata Kunci: Gempa, Sistem Rangka, Beton Struktura
Education Building Maintenance Priority Strategy Consider Safety Condition Using Analytical Hierarchy Process (AHP)
No full textAbstract. Buildings with component degradation are a common challenge for all construction companies across the world. There are various building's components that it is challenging for construction companies to manage them all at once. It was not considered that the building agency is responsible for more than one building at a time. These issues have gotten more complicated as a result of the building agencies' limited financial resources for building maintenance. This study attempts to provide a visible solution to manage the building maintenance strategy based on complex building maintenance problems. The Analytical Hierarchy Process was used to give a complete way for assessing the building's condition (AHP). This method developed in this study was applied to define the building condition and followed by determining the building priority to be maintained. The building component in this study was specified into three specific components such as interior, exterior, and building utility. To complete this method, a three-level priority factor was determined with consideration from the safety factor follow by the functionality factor, dan the last is an esthetic factor. The developed model shows a proper and reliable solution related to the degradation of building components and their functionalities
Utilization of cow dung for biogas to improve livestock breeders and MSME entrepreneurs' economy
No full textSriwulan Village, located in Limbangan District, Kendal Regency, is home to both cattle farmers and several Micro, Small, and Medium Enterprises (MSMEs). The village has a farmer group named Ngudi Kawruh, managing around 20 cows. However, cow dung in the area has become a source of air pollution, and the four MSMEs still rely on Liquefied Petroleum Gas (LPG) for production. One effective solution to this issue is converting cow dung into biogas, which offers both environmental and economic benefits. This community service program aims to introduce appropriate technology for processing cow dung into biogas using biodigesters. The biogas is stored in portable containers, such as truck inner tires, while the biodigester output, in the form of slurry, is utilized as solid organic fertilizer. The program provides education on these concepts through posters, videos, demonstrations, and YouTube links to ensure broad community understanding. By implementing this technology, the program not only addresses environmental concerns and reduces dependence on LPG but also significantly enhances the economic potential of both the villagers and MSME entrepreneurs, promoting sustainable development
Menciptakan Generasi Aman Berlalu Lintas Melalui Edukasi Keselamatan Transportasi Bagi Anak Usia Dini
No full textKeselamatan transportasi merupakan aspek penting yang perlu diperkenalkan sejak usia dini untuk membentuk perilaku disiplin dan sadar hukum di jalan raya. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan pengetahuan keselamatan berlalu lintas pada anak usia dini melalui pendekatan edukatif yang interaktif dan menyenangkan. Bertempat di PAUD Tiara Hati, Semarang, kegiatan dilaksanakan pada 23 Mei 2025 dan melibatkan pelatihan guru, edukasi anak menggunakan alat peraga, serta simulasi menyebrang jalan. Hasil kegiatan menunjukkan peningkatan pemahaman anak terhadap rambu lalu lintas dan keselamatan jalan, serta kesiapan guru dalam mengintegrasikan materi tersebut ke dalam pembelajaran. Kegiatan ini menunjukkan bahwa edukasi keselamatan transportasi berbasis alat peraga edukatif merupakan pendekatan efektif dalam menanamkan budaya tertib lalu lintas sejak dini
Dampak Variasi Dimensi Serat Kaleng Aluminium terhadap Kuat Tekan Beton
No full textPenggunaan bahan daur ulang dalam konstruksi semakin mendapat perhatian sebagai upaya mendukung pembangunan berkelanjutan. Limbah padat yang berpotensi digunakan untuk campuran adalah limbah kaleng aluminium. Penelitian ini bertujuan untuk menganalisis pengaruh variasi dimensi serat kaleng aluminium terhadap kinerja mekanik beton, khususnya kuat tekan. Limbah kaleng aluminium dijadikan serat dengan dipotong menyesuaikan dimensi panjang 5cm dan lebar masing-masing 0,2 cm, 0,5 cm, dan 0,8 cm, dan sebagai campuran beton sebanyak 2% dari volume beton. Pengujian dilakukan pada umur beton 28 hari. Hasil penelitian menunjukkan dengan adanya penambahan serat aluminium pada beton justru menurunkan performa beton akibat distribusi yang kurang merata. Penambahan serat tidak memberikan pengaruh signifikan terhadap kuat tekan beton. Penambahan serat kaleng menyebabkan kuat tekan beton serat kaleng mengalami penurunan dibandingkan dengan beton tanpa serat, yaitu Beton 0,2 berkurang sebesar 25,91%, Beton 0,5 berkurang sebesar 37,34% dan Beton 0,8 berkurang sebesar 45,43%. 
