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All Journal Jurnal Rekayasa Sipil dan Desain PENDIPA Journal of Science Education Journal of Engineering and Scientific Research (JESR) Jurnal Teknik Sipil dan Teknologi Konstruksi Jurnal Teknik Sipil Cendekia (JTSC)
nur syahidah aini
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Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Engineering Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Transportation

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Analisis Investasi Rekayasa Proyek Springhill Condotel Lampung Nur Syahidah Aini; Ika Kustiani; Amril Ma'ruf Siregar
Jurnal Rekayasa Sipil dan Desain Vol 7, No 1 (2019): Edisi Maret 2019
Publisher : Jurnal Rekayasa Sipil dan Desain

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pada masa sekarang, apartemen tidak hanya menjadi hunian pribadi tetapi juga sebagai investasi. Karena itu terjadi permintaan apartemen dalam bentuk kondominium hotel. Springhill condotel Lampung adalah condotel pertama yang dibangun di Bandar Lampung. Investasi Springhill Condotel Lampung memerlukan analisis kelayakan memastikan pengembalian investasi. Pada penelitian ini, studi kelayakan hanya dinilai dari aspek finansial dengan menggunakan beberapa parameter penilaian investasi yaitu NPV (Net Present Value), BCR (Benefit Cost Ratio), IRR (Internal Rate of Return), dan PP (Payback Period). Analisis dibuat dalam 9 (sembilan) buah skenario. Skenario ini divariasikan berdasarkan tingkat-tingkat inflasi dan prediksi-prediksi penjualan. Skenario yang paling layak yaitu pada tingkat inflasi 7% dan prediksi penjualan dengan metode trend linier. Seluruh skenario menunjukan bahwa nilai NPV, BCR dan PP layak. Namun seluruh skenario menunjukan bahwa nilai IRR di bawah tingkat bunga.  Kata kunci : Studi kelayakan, Kondotel, Net Present Value (NPV), Benefit Cost Ratio (BCR), Payback Period (PP), Internal Rate of Return (IRR)
Green Building Assessment and Recommendations for Optimization Case Study of the Rectorate Building the University of Lampung Ika Kustiani; Masdar Helmi; Nur Syahidah Aini
Journal of Engineering and Scientific Research Vol. 5 No. 1 (2023)
Publisher : Faculty of Engineering, Universitas Lampung Jl. Soemantri Brojonegoro No.1 Bandar Lampung, Indonesia 35141

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jesr.v5i1.135

Abstract

The Green Building Concept is a concept that offers a method of managing buildings with less energy and resources utilization to minimize the environmental impact. Since its implementation to be mandator, it is time for the University of Lampung to start implementing this concept. This research was aimed at assessing the Rectorate Building rating based on the national standard on Green Building Certification (Greenship-GBCI). There were several steps in conducting this research. Firstly, an opinion survey was conducted to measure the level of satisfaction of the building’s users. Secondly, a series of measurements related to lighting, temperature, humidity, noise, and air quality were carried out. Furthermore, an interview survey related to the operation and maintenance of the building were conducted. Finally, all of these data were entered in the Green Building rating tool for existing buildings. The results showed that the Rectorate Building score was 23 out of 117. This score is way below the score for a bronze rating of 35. Therefore, corrective action must be taken in order the building operation management to meet the Greenship-GBCI standard. Assessment also needs to be done on buildings througout the university for a reference in developing the University of Lampung Eco-campus program.
Perancangan Filter Pasif Pada Gardu Traksi di Stasiun Citayam Guna Mengurangi Efek Distorsi Harmonisa Putri Jori, Rahmatika Dwi; Sari, Nurwanda; Desliana, Lulu Syahira; Maulidina, Siti; Mardhotillah, Nur Anisa; Arif, Muhammad Rizki; Aini, Nur Syahidah
PendIPA Journal of Science Education Vol 9 No 3 (2025): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.3.742-751

Abstract

Electric Rail Trains (KRL) have become the most frequently used transportation mode for daily activities in the community. One of the existing problems within the operation system of Electric Rail Trains (KRL) lies in the current rectification process. During this rectification process, an effect occurs that can cause disturbances in the KRL's electrical system. This resulting effect is the harmonic effect. This study aims to address the problem of power quality degradation in the Electric Rail Train (KRL) at the Citayam Station Traction Substation, which is caused by this harmonic effect. The harmonic effect arises from the process of rectifying alternating current (AC) into direct current (DC) using a silicon rectifier, which can lead to voltage drop, speed reduction, or even the operational stoppage of the KRL.The research method used is quantitative descriptive. The study did not conduct direct measurements but instead used averaged assumption data from three related journals as primary data. The data analyzed were the values of Total Harmonic Distortion (THD) for both current and voltage, particularly focusing on the 5th, 7th, and 11th harmonic orders, which were identified as the highest contributors to the harmonic distortion. To mitigate the harmonics, this study designed a single-tuned passive filter using the ETAP (Electric Transient Analysis Program) software. The design aims to suppress the harmonic distortion, thereby improving the electrical power quality, maintaining the reliability of the traction substation, and optimizing KRL operations. The single-tuned passive filter designed in this research was capable of suppressing harmonics by up to 0.009%.
ANALISIS DAYA DUKUNG PONDASI BORED PILE PROYEK PEMBANGUNAN RSNTT18-01 PASAR JUM’AT JAKARTA SELATAN Arif, Muhammad Rizki; Aini, Nur Syahidah; Bustam, Hadyan Arifin; Sari, Nurwanda
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.v11i2.13139

Abstract

As urban populations grow, additional housing is urgently needed. The development of housing infrastructure is therefore crucial to supporting the community's daily activities. The Pasar Jumat High-Rise Apartment Development Project (RSNTT18-01) is located on Jalan Sapta Taruna Raya in Lebak Bulus, South Jakarta. One area worked on is the foundation. A foundation is defined as a construction at the base of a structure or building that transfers the load from the upper part of the structure or building to the soil layer below. Every foundation must be able to support loads up to a predetermined safety limit. This study aims to determine the bearing capacity of the piles that can withstand these loads. The RSNTT18-01 project uses a bored pile foundation. The bearing capacity of a bored pile foundation is calculated using bored  Penetration Test (SPT) data. According to the research, the bearing capacity of a bored pile at a depth of 12 meters is 3,8× N, with a structural load (Pu) equal to 6.5647 x 109 N, then one pile cap requires 18 piles.
PENDUGAAN POTENSI AIR TANAH DENGAN METODE GEOLISTRIK KONFIGURASI SCHLUMBERGER DI PEKON PAGAR DALAM KECAMATAN LEMONG KABUPATEN PESISIR BARAT Budianto, Heri; Syahidah Aini, Nur; Nanda Syanur, Farid
JURNAL TEKNIK SIPIL CENDEKIA (JTSC) Vol 7 No 1 (2026): Februari
Publisher : Departement of Civil Engineering, Universitas Winaya Mukti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51988/jtsc.v7i1.438

Abstract

Penelitian ini bertujuan untuk menganalisis penyebaran, kedalaman, dan ketebalan akuifer air tanah di Pekon Pagar Dalam menggunakan metode geofisika geolistrik resistivitas konfigurasi Schlumberger. Metode ini efektif untuk mengidentifikasi sifat aliran listrik batuan bawah permukaan guna mengetahui karakteristik lapisan pembawa air. Data lapangan diolah menggunakan perangkat keras dan lunak yaitu Res2Dinv dan Surfer 12. Hasil penelitian menunjukkan bahwa struktur bawah permukaan terdiri dari Formasi Gunungapi Kuarter Tua dengan nilai resistivitas 36 – 61 Ohm m pada kedalaman 0 – 30 m. Akuifer dangkal yang menjadi sumber air sumur gali ditemukan pada kedalaman 3 – 7 m, sementara akuifer dengan potensi lebih tinggi berada pada kedalaman 20 – 30 m. Berdasarkan korelasi data di Pekon Sukajadi yang memiliki lapisan berpasir, muka air tanah ditemukan mulai kedalaman 35 m dengan debit 1,5 liter/detik. Analisis formasi di lereng Bukit Barisan ini menunjukkan bahwa air baku di lokasi penelitian layak konsumsi. Estimasi nilai Total Dissolved Solids (TDS) berkisar antara 100 – 200 mg/L, yang memenuhi syarat kualitas air baku (maksimal 250 mg/L).
Co-Authors Amril Ma'ruf Siregar Arif, Muhammad Rizki Bustam, Hadyan Arifin Desliana, Lulu Syahira FARID NANDA SYANUR Heri Budianto Ika Kustiani Mardhotillah, Nur Anisa Masdar Helmi Nurwanda Sari Putri Jori, Rahmatika Dwi Siti, Maulidina