Varietas Pilinan Bambu Terkuat Sebagai Pengganti Tulangan Tarik Pada Balok Beton

Rosita, Ani and Riyadistya, Bagus (2009) Varietas Pilinan Bambu Terkuat Sebagai Pengganti Tulangan Tarik Pada Balok Beton. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Baja tulangan adalah hasil tambang yang akan habis. Sebagai alternatif, dicoba pemakaian tulangan bambu yang murah dan berkekuatan tinggi. Penelitian ini akan membandingkan kuat tarik Bambu Apus Tali, Bambu Ori, dan Bambu Jawa Keles yang sudah dipilin dengan tegangan leleh baja tulangan mutu U-22. Bambu akan diambil bagian kulitnya, dimensi 1 × 3 × 750 mm. Bagian kulit diambil tiga helai dan dipilin, kemudian 15 pilinan disatukan dengan kawat bendrat sepanjang pilinan bambu dengan jarak 20 mm. Lalu, dilakukan uji kuat tarik dengan acuan tegangan leleh baja tulangan mutu U-22 pada PBBJ 1971. Pilinan bambu jenis yang paling kuat akan diaplikasikan pada balok beton $f_c$ 22,5 dengan dimensi 20 × 20 × 100 cm. Dari hasil evaluasi ternyata kuat tarik pilinan bambu tidak dapat melebihi tegangan leleh baja tulangan mutu U-22. Kuat tarik pilinan bambu rata-rata terbesar adalah 1.989,97 kg/cm², lebih kecil 9,55%, yaitu dari bambu jenis Apus. Gaya lentur yang dihasilkan dari balok bertulangan pilinan bambu Apus lebih besar 75,49% dari hasil perhitungan balok normal secara teoritis menggunakan tegangan baja.

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Reinforced steel is a mined product that will eventually be depleted. As an alternative, the use of bamboo reinforcement, which is inexpensive and has high strength, is being investigated. This research compares the tensile strength of Apus Bamboo, Ori Bamboo, and Java Bamboo Keles, which have been twisted, with the yield stress of U-22 grade reinforcing steel. The bamboo skin is cut into dimensions of 1 × 3 × 750 mm. Three strips of the skin are taken and twisted, then 15 twisted strands are combined using binding wire along the length of the bamboo strands at intervals of 20 mm. A tensile strength test is then conducted, using the yield stress of U-22 grade reinforcing steel according to PBBI 1971 as a reference. The strongest type of twisted bamboo reinforcement is then applied to a concrete beam with a concrete strength of $f_c = 22.5$ and dimensions of 20 × 40 × 100 cm. The evaluation results show that the tensile strength of twisted bamboo reinforcement cannot exceed the yield stress of U-22 grade reinforcing steel. The highest average tensile strength of twisted bamboo reinforcement is 1,989.97 kg/cm², which is 9.55% lower than that of reinforcing steel and is achieved by Apus Bamboo. The flexural capacity of the beam reinforced with twisted Apus Bamboo is 75.49% greater than the theoretical calculation result for a conventional beam using steel reinforcement.

Item Type:	Thesis (Other)
Additional Information:	RSS 691.1 Ros v
Uncontrolled Keywords:	bambu, kuat tarik, balok. gaya lentur, : bamboo, pull strenght, beam, elastic manner
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TA Engineering (General). Civil engineering (General) > TA444 Reinforced concrete
Divisions:	Faculty of Civil Engineering and Planning > Civil Engineering > 22401-(D3) Diploma 3
Depositing User:	magang .
Date Deposited:	28 Oct 2026 02:13
Last Modified:	28 Oct 2026 02:13
URI:	http://repository.its.ac.id/id/eprint/145925

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