Rahmasari, Novita (2018) Pengaruh Konfigurasi Tulangan Longitudinal Dari Metode Jaket Beton Bertulang Bambu Dengan Sengkang Bambu Pada Kolom Beton Bertulang. Sarjana thesis, Universitas Brawijaya.
Abstract
Kolom merupakan elemen utama dari suatu struktur bangunan karena, kolom memiliki peran utama yaitu sebagai elemen yang menyangga beban aksial dari gaya tekan vertikal. Lokasi kritis keruntuhan struktur (collapse) berada pada kolom sehingga, perlu diperhatikan apabila kolom mengalami kerusakan. Keruntuhan pada kolom dapat berupa kerusakan akibat gempa bumi, overloading, tulangan kolom yang sudah luluh, dan beton keropos. Untuk mencegah keruntuhan dan memperbaiki kolom yang rusak maka diperlukan perkuatan dan perbaikan kolom. Pada penelitian ini kolom diretrofit menggunakan metode Concrete Jacketing dan akan dipasangi sengkang dan tulangan longitudinal bermaterial bambu. Berdasarkan hasil penelitian, kolom retrofit dengan penggunaan tulangan bambu lebih mampu meningkatkan daktilitas, gaya tekan, modulus elastisitas serta kekakuan. Pada penelitian ini kolom retrofit akan dipasangi sengkang dan tulangan longitudinal bermaterial bambu.. Terdapat 4 jenis kolom retrofit yang akan diteliti yakni, kolom retrofit dengan kode A2 yang akan dipasang tulangan longitudinal sebanyak 4 buah tulangan bambu dengan ukuran 10 × 10 mm, kolom retrofit dengan kode B2 dipasang 8 buah tulangan longitudinal dengan ukuran 10 × 5 mm, kolom retrofit dengan kode C.2 dipasang 4 buah tulangan longitudinal dengan ukuran 10 × 20 mm dan, kolom retrofit dengan kode D2 dipasang tulangan 8 buah dengan ukuran 10 × 10 mm. 4 jenis kolom retrofit yang akan diteliti memiliki jarak sengkang yang sama yaitu 75 mm. Penelitian ini dilakukan untuk mengetahui efektivitas pemasangan tulangan dan dimensi tulangan antara kolom retrofit A2 dengan kolom retrofit B2 dan efektivitas pemasangan tulangan dan dimensi tulangan antara kolom retrofit C2 dengan kolom retrofit D2. Kolom akan diuji tekan menggunakan compression test machine dan dipasang dial gauge untuk membantu pembacaan defleksi yang terjadi saat kolom diuji tekan. Dari hasil pengujan menunjukkan bahwa kolom retrofit B.2 memiliki peningkatan gaya tekan maksimum 44,74 % dari gaya tekan maksimum kolom asli B.2. Sementara gaya tekan maksimum kolom retrofit A.2 hanya mengalami peningkatan sebesar 28,14 % dari kolom asli A.2. Namun, untuk nilai kekakuan, kolom retrofit B.2 hanya mengalami peningkatan sebesar 30,7 %, dari kolom asli B.2 sedangkan kolom retrofit A.2 mengalami peningkatan 37,40 % dari kolom asli A.2. Modulus elastisitas kedua kolom retrofit tersebut juga mengalami penurunan, tetapi perubahan modulus elastisitas kolom retrofit B.2 lebih kecil dibanding dengan perubahan modulus elastisitas yang dialami kolom retrofit A.2. Kolom retrofit A.2 mengalami peningkatan daktilitas sebesar 42,14 % dari kolom asli A.2 namun, kolom retrofit B.2 hanya mengalami peningkatan daktilitas sebesar 2,76 % dari kolom asli B.2. Pada perbandingan kolom retrofit C.2 dengan kolom retrofit D.2 didapatkan bahwa kolom retrofit C.2 memiliki peningkatan gaya tekan maksimum 37,47 % dari gaya tekan maksimum kolom asli C.2. Sementara gaya tekan maksimum kolom retrofit D.2 hanya mengalami peningkatan sebesar 6,79 % dari kolom asli D.2. Namun, untuk nilai kekakuan, kolom retrofit C.2 mengalami penurunan sebesar 4,47 %, dari kolom asli C.2 sedangkan kolom retrofit D.2 mengalami peningkatan 13,85 % dari kolom asli D.2. Modulus elastisitas kedua kolom retrofit tersebut juga mengalami penurunan, tetapi perubahan modulus elastisitas kolom retrofit C.2 lebih besar dibanding dengan perubahan modulus elastisitas yang dialami kolom retrofit D.2 Kolom retrofit D.2 mengalami peningkatan daktilitas sebesar 109,63 % dari kolom asli D.2 namun, kolom retrofit C.2 mengalami penurunan daktilitas sebesar 45,70 % dari kolom asli C.2.
English Abstract
Column is a primary element of a building structure. Column has a leading role as a supporting element the axial load of the vertical press. The location of critical structure collapse are located on the column so that, we need to aware if the column suffering damage. The causes of a collapsed column might happens due to damaged column by earthquake, overloading, reinforcement of the columns that already persuaded, and the concrete is porous. To prevent collapse and repair the broken column, retaining and improvements are important. On this research column are retrofitted with Concrete Jacketing method and will be reinforced both transversally and longitudinally with bamboo. Based on the research results, retrofitted column with bamboo reinforcement has better ductility, compressive strength, elasticity modulus, and stiffness improvement On this research, retrofit of columns will be installed longitudinal reinforcement and stirrup from bamboo. There are 4 types of retrofitted column that examined i.e., retrofitted column with code A.2 longitudinal reinforcement to be fitted as much as 4 pieces of bamboo reinforcement with a size of 10 × 10 mm, retrofitted column with code B.2 mounted with 8 pieces longitudinal reinforcement with size 10 × 5 mm, retrofitted column with code C.2 mounted with 4 pieces longitudinal reinforcement of size 10 × 20 mm and, retrofitted column with code D.2 will be installed 8 pieces of reinforcement with a size of 10 × 10 mm. 4 types of retrofitted column that examined approximately the same stirrup i.e. 75 mm. This research was conducted to find out the effectiveness of the installation of reinforcement and reinforcement between the dimensions retrofitted column by column A.2 and B.2 and the effectiveness of the installation of reinforcement between the dimensions retrofitted column by retrofitted column C.2 and D.2. The column will be tested using a compression test press machine and installed with dial gauge to help reading the deflection that occurs when a column is pressed. From the test results indicate that the retrofitted column B.2 has an increased maximum compressive force 44.74% from maximum compressive force original column B.2. While the maximum compressive force of retrofitted column A.2 only experienced an increase of 28.14% of the original column A.2. However, for the value of stiffness, retrofitted column B.2 only experienced an increase of 30.7%, of the original column B.2 whereas retrofitted column A.2 experience increased 37.40% of original column A.2. Modulus of elasticity of both retrofited column also experienced a decline, but the change in modulus of elasticity retrofitted column b. 2 smaller than the modulus elasticity changes experienced retrofitted column a. 2. Retrofitted column a. 2 experience increased ductility of 42.14% of the original column a. column 2 However, retrofit B. 2 only have elevated ductility amounted to 2.76% of the original column b. 2. In the comparison retrofitted column c. 2 with retrofitted column d. 2 obtained by that retrofitted column c. 2 has an increased maximum compressive force 37.47% from maximum compressive force original column c. 2. While the style press maximum retrofitted column d. 2 only experienced an increase of 6.79% of the original column D. 2. However, for the value of stiffness, retrofitted column c. 2 decreased by 4.47%, of the original column c. retrofitted column while 2 D 2 increasing 13.85% of the original column D. 2. Modulus of elasticity second retrofitted column also experienced a decline, but the change in modulus of elasticity retrofitted column c. 2 greater than the change in modulus of elasticity retrofitted column experienced D. 2. Retrofitted column d. 2 experience increased ductility of 109.63% of the original column D. 2 However, a column of retrofit C.2 ductility decline of 45.70% of the original column C. 2.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FT/2018/609/051807169 |
| Uncontrolled Keywords: | Jaket beton, efektivitas, gaya tekan, kekakuan, modulus elastisitas, daktilitas. Concrete Jacket, Effectivity, Press Force, Stiffness, Modulus Elasticity, Ductility |
| Subjects: | 600 Technology (Applied sciences) > 624 Civil engineering > 624.1 Structural engineering and underground construction > 624.18 Materials > 624.183 Masonry, cermic, allied materials > 624.183 4 Concrete > 624.183 41 Reinforced concrete (Ferroconcrete) |
| Divisions: | Fakultas Teknik > Teknik Sipil |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 11 Feb 2019 02:55 |
| Last Modified: | 25 Oct 2021 03:25 |
| URI: | http://repository.ub.ac.id/id/eprint/162944 |
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8. SUMMARY.pdf Download (402kB) | Preview |
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10. BAB I.pdf Download (498kB) | Preview |
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15. DAFTAR PUSTAKA.pdf Download (677kB) | Preview |
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Novita Rahmasari.pdf Download (4MB) | Preview |
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2. KATA PENGANTAR.pdf Download (593kB) | Preview |
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3. DAFTAR ISI.pdf Download (605kB) | Preview |
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4. DAFTAR TABEL.pdf Download (591kB) | Preview |
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