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All Journal JTERA (Jurnal Teknologi Rekayasa) Jurnal Teknik Sipil dan Teknologi Konstruksi
Muhammad Irfan Nurdin
Politeknik Negeri Bandung
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation

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Efektifitas Gelagar Pci Girder Bentang 40 Meter Jembatan Integral Multispan Pilar Tinggi Try Kurniawan Akhbar; Amirah Zakiyyah; Ira Puspitasari; Muhammad Irfan Nurdin
Jurnal Teknik Sipil dan Teknologi Konstruksi Vol 11, No 2 (2025): JURNAL TEKNIK SIPIL DAN TEKNOLOGI KONSTRUKSI
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jts-utu.v11i2.13639

Abstract

 Integral bridges are a type of bridge designed without the use of expansion joints or dilation gaps, allowing the superstructure and substructure to act monolithically without relative movement. In Indonesia, the application of integral bridge concepts is limited. Generally, bridges in the country are designed using simple-span systems with conventional bearings, which, despite their straightforward construction, require periodic maintenance and replacement. Precast prestressed concrete (PCI) girders have been implemented in several integral bridge designs in Indonesia; however, their application is restricted, particularly for piers of considerable size or height. This study aims to determine the maximum pier height applicable for multispan integral bridges utilizing PCI girders commonly available in the market. The investigation focuses on girders with a span length of 40 meters, given their widespread use in Indonesia. Structural modeling was carried out for pier heights ranging from 30 to 60 meters, considering structural behavior during both construction stages and service conditions. The results indicate that for a pier height of 30 meters, the stresses in the PCI girder remain within permissible limits. However, when the pier height increases to 40 meters, the stress exceeded allowable thresholds. Therefore, the use of standard PCI girders with a 40-meter span under such conditions is not recommended unless supported by design modifications or advanced construction technologies. It is thus concluded that 40-meter PCI girders are effective for integral bridge applications with pier heights below 30 meters.
Tinjauan Sistematis terhadap Ensemble Semi-Supervised Network Intrusion Detection System dengan Perspektif Adversarial Robustness Sofy Fitriani; Siti Dwi Setiarini; Muhammad Irfan Nurdin; Ridwan Nurdin
JTERA (Jurnal Teknologi Rekayasa) Vol 11 No 1: Vol. 11 No. 1: Juni 2026
Publisher : Politeknik Sukabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31544/jtera.v11.i1.2026.209-118

Abstract

Sistem deteksi intrusi jaringan atau Network Intrusion Detection System (NIDS) berbasis pembelajaran mesin menjadi pilar utama keamanan siber modern. Namun, model berbasis data berlabel penuh sering kali terbatas dalam generalisasi dan rentan terhadap serangan adversarial. Pendekatan semi-supervised learning memanfaatkan data tak berlabel untuk memperluas cakupan pelatihan, sementara ensemble learning meningkatkan stabilitas melalui keragaman model. Penelitian ini melakukan Systematic Literature Review (SLR) untuk menganalisis tren, arah perkembangan, dan research gap pada kombinasi ensemble semi-supervised NIDS, dengan fokus utama pada robustness terhadap serangan adversarial. Proses review mengikuti pedoman PRISMA dengan sumber data dari IEEE Xplore, Scopus, SpringerLink, dan ScienceDirect untuk periode 2018–2025. Dari 96 artikel awal, 23 memenuhi kriteria inklusi. Hasil analisis menunjukkan sebagian besar penelitian menitikberatkan peningkatan akurasi (F1 > 95%), namun hanya 18% yang menguji ketahanan terhadap serangan adversarial secara eksplisit. Belum ditemukan studi yang mengintegrasikan ensemble multi-paradigma, semi-supervised learning, dan evaluasi adversarial attack secara terpadu. Kontribusi utama penelitian ini adalah penyusunan kerangka konseptual baru, Adversarial-Aware Hybrid Ensemble Framework, yang menempatkan proses adversarial design sebagai bagian integral dari pelatihan semi-supervised ensemble NIDS untuk meningkatkan keandalan sistem deteksi intrusi modern.
Co-Authors Amirah Zakiyyah Ira Puspitasari Ridwan Nurdin Siti Dwi Setiarini Sofy Fitriani Try Kurniawan Akhbar