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      Pengaruh Diameter Web Dan Tebal Flange Terhadap Sifat Fisis Dan Mekanis Balok Penampang I (I-Joist)

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      Date
      2024
      Author
      Thevianni, Anggun
      Nugroho, Naresworo
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      Abstract
      Sebuah balok kayu bentukan hasil rekayasa, lebih dikenal sebagai I-Joist, dengan kombinasi bahan antara kayu dan bambu adalah produk yang dirancang untuk menghilangkan masalah yang terjadi dengan balok kayu konvensional. Penelitian bertujuan untuk menganalisis pengaruh dimensi terhadap sifat fisis dan mekanis balok penampang I (I-Joist) dari Bambu Siam (T. siamensis), serta menganalisis pengaruh diameter web dan tebal flange terhadap sifat fisis dan mekanis balok penampang I (I-Joist). Variasi perlakuan yang diberikan yaitu diameter web dan tebal flange. Penelitian dilakukan menggunakan bambu dengan diameter 3 cm dan 4 cm serta tebal kayu 2 cm; 2,5 cm; dan 3 cm. Hasil penelitian menunjukkan bahwa peningkatan dimensi web dan flange dapat meningkatkan nilai kadar air, kerapatan, MOE dan MOR. Sifat fisis balok I-joist berdasarkan kerapatan memiliki nilai tertinggi yaitu 0,63 g.cm-3. Nilai MOE dan MOR mengalami peningkatan masing-masing sebesar 100% dan 79%. Analisis beban dan defleksi balok mampu menahan beban terbesar 206,14 kg dengan defleksi maksimum 27 mm. Kerusakan yang terjadi pada balok berupa retak tarik, hal tersebut menunjukan tingginya kekakuan pada balok I-Joist. Kata kunci: Bambu siam, diameter, I-joist, sifat fisis, sifat mekanis An engineered wooden beam, better known as an I-Joist, with a combination of wood and bamboo is a product designed to eliminate the problems that occur with conventional wooden beams. The research aims to analyze the influence of dimensions on the physical and mechanical properties of I-section beams (I-Joist) from Siamese Bamboo (T. siamensis). analyzed the effect of web diameter and flange thickness on the physical and mechanical properties of I-Joist beams from Siamese Bamboo (T. siamensis). Variations in the treatment given are web diameter and flange thickness. The research was carried out using bamboo with a diameter of 3 cm and 4 cm and wood 2 cm thick; 2.5 cm; and 3 cm. The results show that increasing web and flange dimensions can increase the values of water content, density, MOE and MOR. The physical properties of the I-joist beam based on density have the highest value, namely 0.63 g.cm-3. The MOE and MOR values increased by 100% and 79% respectively. Analysis of the load and deflection of the beam is able to withstand the largest load up to a maximum deflection of 206 kg with a deflection of 27 mm. The damage that occurs to the beam is tensile cracks. This shows the high stiffness of the I-Joist beam. Keywords: Diameter, siamese bamboo, I-joist, physical properties, mechanical properties.
      URI
      http://repository.ipb.ac.id/handle/123456789/158122
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