Perkuatan Sambungan Tipe Bolted Connection With Cover Plate Pada Modular Box Dengan Metode Finite Element

Junaidi Putra, Iqbal Firmansyah (2026) Perkuatan Sambungan Tipe Bolted Connection With Cover Plate Pada Modular Box Dengan Metode Finite Element. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Konstruksi modular saat ini sudah berkembang sebagai salah satu solusi untuk mempercepat pelaksanaan proyek, meningkatkan kualitas fabrikasi, dan mengurangi dampak lingkungan. Namun, keandalan sambungan antar modul masih menjadi faktor yang paling menentukan terhadap kinerja struktur, khususnya ketika bangunan mengalami pembebanan gempa. Berbagai penelitian menunjukkan bahwa penurunan kekakuan sambungan dapat mengubah distribusi gaya dalam, meningkatkan deformasi antar lantai, dan memicu konsentrasi tegangan pada area kritis sehingga berpotensi menurunkan tingkat keamanan struktur, hasil evaluasi menunjukkan bahwa rasio tegangan kolom mencapai 1,048, sedangkan nilai story drift sebesar 0,0269, melebihi batas yang dipersyaratkan. Temuan tersebut menunjukkan bahwa peningkatan kinerja sambungan menjadi aspek penting untuk memperoleh respons struktur yang lebih aman terhadap beban lateral.
Penelitian ini bertujuan mengevaluasi perilaku sambungan tipe Bolted Connection with Cover Plate (BWC) serta mengembangkan konfigurasi perkuatan yang dapat meningkatkan kinerja sambungan. Analisis dilakukan menggunakan ETABS untuk memperoleh respons struktur global dan ANSYS dengan metode Finite Element Analysis (FEA) untuk menganalisis perilaku sambungan secara nonlinier. Model numerik divalidasi terhadap hasil pengujian eksperimental sebelum digunakan untuk mengevaluasi beberapa variasi perkuatan, yaitu penambahan baut, pelat landasan, cover plate, dan kombinasi seluruh elemen perkuatan.
Hasil penelitian menunjukkan bahwa konfigurasi perkuatan mampu memperbaiki distribusi tegangan pada daerah sambungan, mengurangi deformasi lokal, serta meningkatkan mekanisme transfer gaya antara balok dan kolom. Kekakuan rotasi sambungan meningkat dari 2.190,16 kNm/rad menjadi 3.454,06 kNm/rad, atau sebesar 57,71% dibandingkan kondisi eksisting. Perkuatan juga menghasilkan perilaku sambungan yang lebih stabil terhadap pembebanan lateral sehingga berpotensi meningkatkan keandalan struktur modular baja di daerah rawan gempa.
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Modular construction has now emerged as a solution to accelerate project delivery, improve fabrication quality and reduce environmental impact. However, the reliability of connections between modules remains the most critical factor affecting structural performance, particularly when a building is subjected to seismic loads. Various studies indicate that a reduction in joint stiffness can alter the distribution of internal forces, increase inter-storey deformation, and trigger stress concentrations in critical areas, thereby potentially reducing the structural safety level. The evaluation results show that the column stress ratio reached 1.048, whilst the story drift value was 0.0269, exceeding the specified limits. These findings indicate that improving joint performance is a crucial aspect of achieving a safer structural response to lateral loads.
This study aims to evaluate the behaviour of Bolted Connection with Cover Plate (BWC) joints and to develop reinforcement configurations that can enhance joint performance. Analyses were carried out using ETABS to obtain the global structural response and ANSYS with the Finite Element Analysis (FEA) method to analyse the non-linear behaviour of the connection. The numerical model was validated against experimental test results before being used to evaluate several reinforcement variations, namely the addition of bolts, base plates, cover plates, and a combination of all reinforcement elements.
The research findings indicate that the reinforcement configuration improves the stress distribution in the joint area, reduces local deformation, and enhances the force transfer mechanism between the beam and column. The rotational stiffness of the joint increased from 2,190.16 kNm/rad to 3,454.06 kNm/rad, representing a 57.71 % increase compared with the existing condition. The reinforcement also resulted in more stable joint behaviour under lateral loading, thereby potentially enhancing the reliability of modular steel structures in earthquake-prone areas.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Modular Box, Bolted Connection with Cover Plate, perkuatan sambungan, Finite Element Analysis, ANSYS, ETABS, struktur baja, ketahanan gempa, Modular Box, Bolted Connection with Cover Plate, joint reinforcement, Finite Element Analysis, ANSYS, ETABS, steel structures, seismic resistance
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:	Iqbal Firmansyah Junaidi Putra
Date Deposited:	30 Jul 2026 07:05
Last Modified:	30 Jul 2026 07:05
URI:	http://repository.its.ac.id/id/eprint/139818

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