Analisis Kekakuan Sambungan Plug-in Device Dengan Stiffener Hasil Modifikasi Menggunakan Finite Element

Restu, Muhammad Farhan (2026) Analisis Kekakuan Sambungan Plug-in Device Dengan Stiffener Hasil Modifikasi Menggunakan Finite Element. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Perkembangan bangunan modular di Indonesia sudah mulai berkembang karena bangunan modular menawarkan banyak kelebihan dibandingkan bangunan konvensional. Kementerian PUPR telah melakukan pengujian pada gedung modular dengan tujuan gedung modular yang akan terbangun memenuhi semua persyaratan. Hasil pengujian didapatkan bahwa ketika terbebani beban sebesar 23 kN terjadi displacement sebesar 269 mm. Sambungan modular plug-in device telah dilakukan berbagai penelitian dengan nilai kekakuan sambungan yang lebih besar. Oleh karena itu, penelitian ini bertujuan untuk menganalisis karakteristik kekakuan sambungan plug-in device dengan stiffener hasil modifikasi menggunakan finite element method agar dapat diterapkan di Indonesia dengan frekuensi beban gempa yang cukup tinggi. Objek penelitian berupa penelitian yang telah dilakukan mengenai sambungan modular tipe plug-in device. Analisis sambungan dilakukan menggunakan finite element method pada perangkat lunak ANSYS 2022. Dilakukan pemodelan sebanyak tiga spesimen numerik diantaranya dua spesimen sebagai validasi terhadap penelitian terdahulu dan satu model lainnya sebagai penelitian. Material baja struktural dimodelkan secara nonlinier menggunakan true stress-strain dimana mutu baja menggunakan kuat leleh 465 MPa, sedangkan baut menggunakan mutu Grade 8.8 dengan kuat leleh 640 MPa. Interaksi kontak antar elemen menggunakan bonded dan frictional. Karakteristik kekakuan sambungan yang diperoleh dari hasil analisis Finite element selanjutnya dibandingkan dengan penelitian terdahulu. Hasil penelitian menunjukkan bahwa sambungan plug-in device dengan stiffener hasil modifikasi memiliki karakteristik kekakuan yang lebih tinggi dibandingkan sambungan referensi. Nilai initial translational stiffness meningkat menjadi 21500,46 kN/m atau sebesar 243% dibandingkan model SC1 dan 127% dibandingkan model SC2. Selain itu, nilai initial rotational stiffness meningkat menjadi 26739,38 kNm/rad, atau sebesar 163% dibandingkan model SC1 dan 82% dibandingkan model SC2. Peningkatan tersebut menunjukkan bahwa penambahan stiffener mampu meningkatkan kemampuan sambungan dalam mentransfer gaya dan momen. Dengan demikian, modifikasi stiffener pada sambungan plug-in device terbukti efektif dalam meningkatkan karakteristik kekakuan sambungan dan berpotensi menjadi alternatif pengembangan desain sambungan pada konstruksi gedung modular baja.
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The development of modular buildings in Indonesia has gradually increased due to the numerous advantages they offer over conventional construction methods. The Indonesian Ministry of Public Works and Housing (PUPR) has conducted structural testing on modular buildings to ensure that they meet the required performance standards. The test results showed that a displacement of 269 mm occurred under a lateral load of 23 kN. Meanwhile, numerous studies on plug-in device connections have demonstrated that this type of modular connection possesses higher joint stiffness. Therefore, this study aims to investigate the stiffness characteristics of a modified plug-in device connection with an added stiffener using the Finite Element Method (FEM). The findings are expected to support the application of this connection system in Indonesia, where buildings are subjected to relatively high seismic demands. The object of this study was a previously developed modular plug-in device connection. The connection was analyzed using the finite element method in ANSYS 2022. Three numerical models were developed, consisting of two validation models based on previous studies and one modified model proposed in this research. Structural steel was modeled using a nonlinear true stress–strain relationship with a yield strength of 465 MPa, while the bolts were assigned Grade 8.8 properties with a yield strength of 640 MPa. Contact interactions between components were defined using bonded and frictional contact conditions. The stiffness characteristics obtained from the finite element analysis were subsequently compared with those reported in previous studies. The results indicate that the modified plug-in device connection with stiffeners exhibits higher stiffness characteristics than the reference connections. The initial translational stiffness increased to 21,500.46 kN/m, representing an increase of 243% compared with the SC1 model and 127% compared with the SC2 model. Furthermore, the initial rotational stiffness increased to 26,739.38 kNm/rad, corresponding to an increase of 163% relative to the SC1 model and 82% relative to the SC2 model. These improvements demonstrate that the addition of stiffeners enhances the connection's ability to transfer forces and bending moments. Therefore, the proposed stiffener modification has been proven effective in improving the stiffness characteristics of the plug-in device connection and has the potential to serve as an alternative connection design for steel modular buildings.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Gedung Modular Baja, Plug-in device, Finite Element, Initial Stiffness, Stiffener Steel modular building, Plug-in device, Finite element method, Initial Stiffness, Stiffener
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method
Divisions:	Faculty of Vocational > Civil Engineering Maintenance and Restoration of Buildings (S2)
Depositing User:	Restu Muhammad Farhan
Date Deposited:	04 Aug 2026 02:49
Last Modified:	04 Aug 2026 02:49
URI:	http://repository.its.ac.id/id/eprint/142841

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