Jurnal Tekno

Kajian Ekperimental Metode Pelapisan Dengan Cfrp Pada Balok Beton Bertulang

Tamsir Ariyadi — 2024-07-03

Ketika menggunakan beton bertulang dalam desain struktur, penting untuk memperhatikan kekuatan tekannya serta plastisitas dan deformasinya. Untuk meningkatkan kekuatan lentur dan daktilitasnya, bahan dengan kekuatan tarik tinggi ditambahkan. Salah satu contohnya adalah polimer serat karbon yang dikuatkan (CFRP), yang terbuat dari serat karbon yang disajikan sebagai fiberglass. Sebuah set tujuh balok beton bertulang, masing-masing dengan dimensi 12 x 20 cm dan panjang 200 cm, dibangun untuk menghitung jumlah kontribusi lapisan komposit fiberglass (CFRP) terhadap peningkatan kuat lentur dan daktilitas. Hasil pengujian menunjukkan bahwa lapisan CFRP yang lebih banyak membuat balok beton bertulang lebih mudah ditekuk. Kekuatan lentur balok RNSC 1A meningkat sebesar 6,65%, dan kekuatan lentur balok RNSC 2A meningkat sebesar 14,45%. Daktilitas balok RNSC 1B meningkat sebesar 12,71%, dan daktilitas balok RNSC 1B meningkat sebesar 17,13% menjadi 44,52%. Kekuatan fleksibel RNSC 1C meningkat sebesar 20,81% dan 11.89%. Kekuatan fleksibel RNSC 2B meningkat sebesar 17.92% dan 44.64%, sedangkan kekuatan fleksibel RNSC 2C meningkat sebesar 28.62% dan 37.64%.

smart sistem kontrol penggunaan air pdam dengan monitor biaya dan pematauan kekeruhan air berbasis iot

M. Hardiansyah — 2024-07-03

All living things, but humans in particular, need water, which is a very important and essential need. This study aims to design and implement an intelligent system that uses flow meters, ultrasonic sensors, and turbidity sensors in PDAM water systems to monitor and control water usage in a sustainable manner. efficient. This system is able to measure water discharge, water level in the tub, and water turbidity, as well as calculate the cost of using water based on the data collected. With this system, it is hoped that it can improve PDAM operational efficiency, reduce water wastage, and provide relevant information in managing water use. In conclusion, the proposed intelligent control system incorporates IoT technology to improve water resource management. By enabling real-time monitoring of water consumption, costing and monitoring of water quality, these systems can be an important step towards more efficient and sustainable water use in urban environments.

PERENCANAAN PERSEVASI JALAN KONDISI RUAS JALAN DI KOTA PALEMBANG MENGGUNAKAN ASPAL CPHMA

Anggi Purnama Sari Dewi — 2024-09-21

Maintenance of road and bridge infrastructure has a crucial role in maintaining transportation efficiency and encouraging economic growth in urban areas. In the city of Palembang, which is one of the major cities in Indonesia, good road and bridge conditions are needed to support people's economic and social activities. Population growth and high intensity of use make the need for routine maintenance even more urgent. Cold Paving Hot Mix Asphalt (CPHMA) technology emerges as an effective solution by offering ease of application, high resistance to traffic loads, and long-term maintenance cost efficiency. Maintenance planning that takes into account factors such as traffic intensity, geographical conditions, and budget constraints is essential to ensure the infrastructure remains in optimal condition. With proper planning and the use of appropriate technology, the condition of roads and bridges in Palembang is expected to continue to be maintained, reduce the risk of accidents, attract investment, and improve the image of the city.

Ergonomics Analysis of Classroom Furniture

Rafa Shofura — 2024-10-20

One of the University Campus in Semarang city provides two types of class facilities: regular classes and creative classes. The first type is equipped with traditional non-adjustable chairs with desks arranged facing the front of the room, while the second types are equipped with movable whiteboard desks, adjustable wheeled chairs, and interactive whiteboards. Both types of rooms are facilitated with a whiteboard and standard projector. In the creative class, the tables and chairs are easily moved to support the learning process. For the students, to be in a sitting position in long hours in the class using the furniture that doesn't fit properly, can result in poor posture and even problems with the musculoskeletal system This study discusses the design of both classes based on anthropometric and ergonomic related to the furniture and the layout. Students’ comfort during the learning process and social interaction were captured using a questionnaire. Preferences and perceptions about the comfort of the classroom were analysis to determine opportunities for improvement that can enhance the learning environment.