Akhmad, Rana Hardin Pratama (2023) Analisis Pengaruh Perendaman Air Laut Pada Kekuatan Balok Beton Menggunakan Glass Fiber Reinforced Polymer Sheet (Gfrp-S) Dengan Metode Elemen Hingga. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Struktur beton yang berdekatan dengan air laut tidak dapat dihindarkan dalam pembangunan sarana dan prasarana infrastruktur pada saat ini. Beton dengan kondisi terendam air laut akan membuat pengurangan kekuatan seiring dengan semakin tingginya tingkat korosi baja tulangan didalamnya. Dengan adanya teknologi terbarukan yaitu Glass Fiber Reinforced Polymer Sheet (GFRP-S), dimungkinkan adanya pelapisan sebagai tambahan kekuatan beton dan perlindungan baja tulangan dari pengaruh korosi yang disebabkan air laut. Telah dilakukan beberapa penelitian laboratorium tentang pelapisan GFRP-S sebagai penambahan dan perlindungan terhadap kondisi lingkungan air laut, namun penelitian selama ini terbatas oleh waktu dan keterbatasan alat, sehingga dirasa perlu untuk membuat suatu analisis elemen hingga. Permodelan ini menggunakan software bantu Abaqus CAE 2017. Hasil dari permodelan dari Abaqus kemudian dilakukan validasi dengan beberapa penelitian laboratorium terdahulu untuk mengetahui berapa persen tingkat deviasi yang terjadi. Setelah melakukan pengoptimalan, dilakukan penambahan dengan menambah beberapa variabel guna mengetahui kapasitas beban dengan kondisi yang berbeda. Beberapa variabel yang digunakan pada studi kali ini adalah jangka waktu perendaman yaitu 12 bulan, 24 bulan dan 48 bulan. Selain jangka waktu, penambahan variasi yang dilakukan adalah ketebalan GFRP-S yang semula hanya 1,3 mm ditambah dengan 1,5 mm dan 1,8 mm. Hasil yang didapatkan adalah dengan perendaman 12 bulan terjadi penurunan kapasitas beban sebesar 11,21%, waktu perendaman 24 bulan terjadi penurunan 14,34% dan penurunan pada perendaman 48 bulan sebesar 17,63%. Penambahan Ketebalan 2 mm GFRP-S menaikkan kapasitas sebesar 0,89% dan kenaikan 5 mm GFRP-S menaikkan kapasitas sebesar 3,74%.
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Concrete structures adjacent to sea water cannot be avoided in the construction of infrastructure facilities and infrastructure at this time. Concrete with seawater submerged conditions will reduce strength along with the higher corrosion rate of reinforcing steel in it. With the latest technology, namely Glass Fiber Reinforced Polymer Sheet (GFRP-S), it is possible to have coatings to increase the strength of concrete and protect reinforcing steel from the effects of corrosion caused by seawater. Several laboratory studies have been carried out on GFRP-S coating as an addition and protection against seawater environmental conditions, but research so far has been limited by time and equipment limitations, so it is necessary to create a finite element analysis. This modeling uses the Abaqus CAE 2017 software. The results of the Abaqus modeling were then validated with several previous laboratory studies to find out what percentage of the deviation occurred. After optimizing, additions are made by adding several variables to determine the load capacity under different conditions. Some of the variables used in this study are immersion periods of 12 months, 24 months and 48 months. Apart from the time period, the addition of variations made was the thickness of the GFRP-S which was originally only 1,3 mm upgraded to 1,5 mm and 1,8 mm. The results obtained were that with 12 months due to immersion there was a decrease in load capacity of 11,21%, a decrease due to 24 months of immersion time 14,34% and a decrease in 48 months of immersion of 17,63%. The addition of 2 mm thickness of GFRP-S increases capacity by 0.89% and an increase of 5 mm GFRP-S increases capacity by 3.74%.
| Item Type: | Thesis (Masters) |
|---|---|
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA169.5 Failure analysis T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method T Technology > TA Engineering (General). Civil engineering (General) > TA418.9 Composite materials. Laminated materials. T Technology > TA Engineering (General). Civil engineering (General) > TA440 Concrete--Cracking. T Technology > TA Engineering (General). Civil engineering (General) > TA444 Reinforced concrete |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22101-(S2) Master Thesis |
| Depositing User: | Rana Hardin Pratama Akhmad |
| Date Deposited: | 02 Aug 2023 07:55 |
| Last Modified: | 02 Aug 2023 07:55 |
| URI: | http://repository.its.ac.id/id/eprint/100862 |
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