Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal MEDIA KOMUNIKASI TEKNIK SIPIL RACIC : Rab Construction Research
Patria Kusumaningrum
Institut Teknologi Bandung
Civil Engineering, Building, Construction & Architecture

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
ANALISA KARAKTERISTIK AGREGAT BETON DAUR ULANG TERHADAP KUAT TEKAN BETON Husnah Husnah; Herlien Dwiarti Setio; Ivan Sandi Darma; Patria Kusumaningrum
Racic : Rab Construction Research Vol. 10 No. 1 (2025): JUNI 2025
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i1.6375

Abstract

The use of recycled aggregates in concrete production is an environmentally friendly alternative to reduce construction waste and the exploitation of natural aggregates. This study aims to analyze the influence of the characteristics of recycled concrete aggregate (RCA) on the compressive strength of concrete. The research method involves using aggregates derived from laboratory concrete waste, which are crushed and sieved to pass through a 25 mm sieve. The physical characteristics of RCA were tested, including bulk density, sieve analysis, organic content of fine aggregates, silt content, moisture content, specific gravity, water absorption, and unhydrated cement grain (UCG) analysis. Concrete specimens were prepared with 25%, 50%, 75%, and 100% RCA as a replacement for coarse aggregates, and their compressive strength was evaluated at the ages of 7, 14, and 28 days. The results showed that higher proportions of RCA in the concrete mix can lead to an increase in compressive strength.
Analisis Dinamik Struktur Kolom Kantilever dan Portal di Ponton sebagai Simulasi Turbin Angin Terapung dan Rumah Terapung terhadap Gelombang Patria Kusumaningrum; Anggito Tri Agastya; Olivia Debora Papuani Tambunan
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 31, Nomor 2 (2025)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v31i2.72286

Abstract

Floating wind turbines and floating houses are innovative solutions to global challenges such as land scarcity and rising sea levels. This study investigates the dynamic responses of both structures under wave excitation. The floating wind turbine is modeled as a cantilever column with a lumped mass at the top, while the floating house is idealized as a single-story portal frame. Both structures are supported by pontoons, which are represented as beams on elastic foundations using the Winkler foundation theory. Wave loads are modeled based on linear wave theory and Froude-Krylov forces. The analysis is conducted in the time domain using the Finite Element Method and Newmark-Beta integration scheme. The results show that the floating wind turbine experiences a maximum drift of 61.986 mm, heave of 104.310 mm, and pitch of 0.141°, whereas the floating house experiences a maximum drift of 35.587 mm, heave of 60.621 mm, and pitch of 0.408°. The highest internal forces occur in the pontoon section of both structures, indicating that the pontoon plays a significant role in resisting wave loads. This study contributes to a better understanding of the dynamic behavior of floating structures and demonstrates that a simplified 2D modeling approach can be effectively used as an initial step in designing stable and efficient floating systems.
Co-Authors Anggito Tri Agastya Darma, Ivan Sandi Herlien Dwiarti Setio Husnah Husnah Olivia Debora Papuani Tambunan