Zulkarnaen, zulkarnaen (2026) Desain Dan Analisi Kekuatan Formwork Modular Berbahan Termoplastik Dengan Finite Element Method. Masters thesis, InstitutTeknologi Sepuluh Nopember.
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Abstract
Penggunaan material polimer dalam bidang konstruksi memberikan peluang untuk mengurangi berat struktur, meningkatkan ketahanan korosi, serta memperpanjang umur pakai sistem formwork. High Density Polyethylene (HDPE) memiliki potensi sebagai alternatif material formwork konvensional karena bersifat ringan, tahan air dan bahan kimia, serta dapat digunakan kembali. Namun, rendahnya modulus elastisitas HDPE menyebabkan material ini memerlukan optimasi geometri untuk meningkatkan kekakuan dan mengurangi deformasi akibat tekanan lateral beton segar. Penelitian ini bertujuan untuk mendesain dan menganalisis kekuatan formwork modular berbahan HDPE dengan variasi bentuk sirip pengaku (round, square, triangle, dan honeycomb) serta variasi ketebalan panel 3 mm, 4 mm, dan 5 mm menggunakan metode Finite Element Method (FEM). Simulasi numerik dilakukan menggunakan ANSYS Static Structural dengan pembebanan tekanan lateral beton segar berdasarkan standar ACI 347R-14. Parameter evaluasi meliputi equivalent stress, equivalent elastic strain, total deformation, dan safety factor.
Hasil simulasi menunjukkan bahwa variasi bentuk sirip pengaku dan ketebalan panel berpengaruh signifikan terhadap respons struktural formwork. Model honeycomb dengan ketebalan 5 mm memberikan performa terbaik dengan total deformation sebesar 6.2 mm, equivalent stress sebesar 11.05 MPa, dan safety factor sebesar 2.26. Konfigurasi tersebut menghasilkan distribusi tegangan yang lebih merata serta tingkat keamanan struktur yang lebih baik dibandingkan model lainnya.
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The use of polymer materials in construction offers opportunities to reduce structural weight, improve corrosion resistance, and increase the service life of formwork systems. High Density Polyethylene (HDPE) has potential as an alternative material for conventional formwork because it is lightweight, water-resistant, chemical-resistant, and reusable. However, the relatively low stiffness of HDPE requires structural optimization to reduce deformation caused by fresh concrete lateral pressure. This study aims to design and analyze the strength of modular HDPE formwork with variations of stiffener rib geometry (square, round, triangle, and honeycomb) and panel thicknesses of 3 mm, 4 mm, and 5 mm using the Finite Element Method (FEM). Numerical simulations were carried out using ANSYS Static Structural under fresh concrete lateral pressure based on ACI 347R-14 standards. The evaluation parameters included equivalent stress, equivalent elastic strain, total deformation, and safety factor. The simulation results show that rib geometry and panel thickness significantly affect the structural performance of the formwork. The honeycomb model with a 5 mm panel thickness produced the best performance, with a total deformation of 6.2 mm, equivalent stress of 11.05 MPa, and safety factor of 2.26. This configuration provided a more uniform stress distribution and better structural safety compared to the other models.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Modular Formwork, HDPE, Static Structural, Ribs, FEM, Formwork Modular, HDPE, Static Structural, Ribs, FEM |
| Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TJ Mechanical engineering and machinery > TJ230 Machine design |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21101-(S2) Master Thesis |
| Depositing User: | Zulkarnaen Zulkarnaen |
| Date Deposited: | 29 Jul 2026 07:20 |
| Last Modified: | 29 Jul 2026 07:20 |
| URI: | http://repository.its.ac.id/id/eprint/139679 |
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