Assessing The Response Of Reinforced Concrete And Engineered Cementitious Composite Link Slabs: Experimental And Numerical Studies

Islam, Ahmad Saiful (2026) Assessing The Response Of Reinforced Concrete And Engineered Cementitious Composite Link Slabs: Experimental And Numerical Studies. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

This study examines the structural performance of link slab systems for jointless bridge decks using combined experimental and numerical approaches. Three configurations were investigated: a conventional reinforced concrete link slab (LS-REF), a full-depth engineered cementitious composite link slab (LS-ECC), and a hybrid link slab combining normal concrete and ECC (LS-HYBRID). Full-scale specimens were tested under flexural monotonic loading to evaluate cracking moment, flexural capacity, strain development, and failure characteristics. In parallel, nonlinear finite element analysis was conducted using ATENA 3D to simulate both flexural monotonic and fatigue responses, incorporating a fracture–plastic constitutive model and calibrated fatigue parameters to capture stiffness degradation and damage accumulation under cyclic loading up to two million cycles. The results show that LS-REF exhibits brittle behavior with early crack initiation and rapid stiffness degradation. In contrast, LS-ECC demonstrates the most stable response, characterized by superior crack control, enhanced energy dissipation, and minimal degradation under repeated loading. The LS-HYBRID configuration provides a balanced performance, achieving higher load-carrying capacity than LS-ECC while maintaining improved ductility and fatigue resistance compared to LS-REF. Parametric analyses further indicate that ECC depth and material properties, particularly tensile strength and fracture energy, play a critical role in governing fatigue performance and long-term durability. Overall, the incorporation of ECC, either as a full-depth or hybrid system, significantly enhances the structural performance and fatigue resistance of link slabs, offering an effective solution for durable jointless bridge deck applications.
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Penelitian ini mengkaji kinerja struktural sistem link slab pada jembatan tanpa sambungan melalui pendekatan eksperimental dan numerik. Tiga konfigurasi link slab dianalisis, yaitu link slab beton bertulang konvensional (LS-REF), link slab ECC penuh (LS-ECC), dan link slab hibrida yang mengombinasikan beton normal dan ECC (LS-HYBRID). Pengujian eksperimental dilakukan pada spesimen skala penuh di bawah pembebanan lentur monotonik untuk mengevaluasi momen retak, kapasitas lentur, perkembangan regangan, dan mekanisme kegagalan. Selanjutnya, analisis elemen hingga nonlinier menggunakan ATENA 3D dilakukan untuk memodelkan respons lentur monotonik dan fatigue, dengan menerapkan model konstitutif fracture–plastic serta parameter fatigue terkalibrasi guna merepresentasikan degradasi kekakuan dan akumulasi kerusakan hingga dua juta siklus pembebanan. Hasil penelitian menunjukkan bahwa LS-REF memiliki perilaku getas dengan inisiasi retak dini dan degradasi kekakuan yang cepat. Sebaliknya, LS-ECC menunjukkan respons paling stabil dengan pengendalian retak yang sangat baik, kapasitas disipasi energi yang tinggi, serta degradasi minimal pada pembebanan berulang. Konfigurasi LS-HYBRID memberikan kinerja yang seimbang, dengan kapasitas beban lebih tinggi dibandingkan LS-ECC serta daktilitas dan ketahanan fatigue yang lebih baik dibandingkan LS-REF. Analisis parametrik menunjukkan bahwa ketebalan dan sifat material ECC, khususnya kuat tarik dan energi fraktur, berperan penting terhadap kinerja fatigue dan durabilitas jangka panjang. Secara keseluruhan, penggunaan ECC, baik sebagai sistem penuh maupun hibrida, terbukti meningkatkan kinerja struktural dan ketahanan fatigue link slab untuk aplikasi jembatan tanpa sambungan.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	link slab, engineered cement composite (ECC), performansi strutktural, link slab, engineered cement composite (ECC), structural performance.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TA Engineering (General). Civil engineering (General) > TA418.9 Composite materials. Laminated materials. T Technology > TG Bridge engineering T Technology > TG Bridge engineering > TG325.6 Bridges--Floors--Design and construction.
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22101-(S2) Master Thesis
Depositing User:	Ahmad Saiful Islam
Date Deposited:	02 Feb 2026 09:02
Last Modified:	02 Feb 2026 09:02
URI:	http://repository.its.ac.id/id/eprint/131473

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