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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Rekayasa Material, Manufaktur & Energi International Journal of Research in Vocational Studies (IJRVOCAS) Jurnal Solusi Masyarakat Dikara
Efrida, Rizki
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Aerospace Engineering Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Mapping Road Capacity on Secondary Arterial Roads in Medan City Using Web-Based Geographic Information System Septiningtiyas , Dina Tri; Samiran; Pasaribu, Hadianti Muhdinar; Mabrur, Muhammad; Efrida, Rizki; Rifq, Muhammad Ar
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 3 No. 4 (2024): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v3i4.94

Abstract

Medan City is the third largest city in Indonesia which has a population in 2022 of 2,494,512 people, with a population density of 9,413 people/km2. Based on BPS data in 2022, the number of motorized vehicles in Medan City is 288,378. One of the main problems in Medan is the existence of traffic jams. This study discusses the mapping of road capacity on secondary arterial roads in Medan City. The method used is Web GIS-based mapping which provides mapping information in digital form. The data in the study ar e traffic volume data, road geomic data, and Medan City administration maps. From the results of the study, the large road capacity in the research area was obtained namely Yos Sudarso A Road amounting to 1,485.8 smp / hour, Yos Sudarso B Road amounting to 1,485.8 smp / hour, Putri Hijau Road amounting to 1,744.2 smp / hour, Balai Kota Road amounting to 1,744.2 smp / hour, and Guru Pattimpus Road amounting to 1,679.6 smp / hour.
Aspects of Structural Design of Residential Buildings in Medan City, North Sumatra Province Sitompul, Mizanuddin; Dary, Rhini Wulan; Tobing, Palghe; Nofriadi; Efrida, Rizki
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 4 No. 4 (2024): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v4i4.380

Abstract

Generally, residential buildings, especially low-rise ones in North Sumatra, are not well planned and built with poor supervision. In its planning, it often overrides the calculation of structural analysis. This residential building is known to have many failures during earthquakes. The research team is interested in studying the important elements in the design and construction of residential buildings, focusing on very crucial structural aspects. By considering these aspects comprehensively, it is hoped that the end result will be a sturdy, functional, and sustainable structural design of a residential building for its occupants.
Sosialisasi Peer Guidance untuk Mereduksi Perilaku Bullying pada Remaja di Dayah Terpadu Al-Madinatuddiniyah Syamsuddhuha Ferona, Naiza; Hawari, Nadifatul; Siregar, Nurhabibi; Sakinah, Nur; Nasution, Elvy Sahnur; Astuti, Widi; Efrida, Rizki
Jurnal Solusi Masyarakat Dikara Vol 4, No 3 (2024): Desember 2024
Publisher : Yayasan Lembaga Riset dan Inovasi Dikara

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Abstract

Pesantren seyogyanya menjadi tempat membentuk akhlak yang mulia bagi santri, namun praktik perundungan (bullying) di lingkungan pesantren masih marak terjadi. Adapun jenis perundungan yang biasa terjadi berupa bullying fisik, verbal, ralasional serta melalui media sosial (cyberbullying) sehingga diperlukan upaya untuk mencegah dan melawannya. Pembekalan melalui psikoedukasi ini bertujuan memberikan pengenalan, pemahaman, serta penerapan cara guna mereduksi intensitas praktik bullying dan cara melawannya. Terdapat empat tahapan pada metode psikoedukasi yang dilakukan yakni; 1). Identifikasi, 2).Persiapan, 3).Pelaksanaan, 4).Evaluasi dan tindak lanjut kegiatan. Program pengabdian melalui psikoedukasi ini menghasilkan; 1). Pengetahuan pemahaman siswa tentang perundungan yang terukur dari hasil posttest dengan nilai yang memenuhi, 2). Peningkatan kesadaran siswa dengan membiasakan peka terhadap ciri - ciri perilaku perundungan dan mampu menjadi fasilitator bagi pelaku atau korban perundungan di lingkup sekolah guna membantu pihak guru, sivitas akademik dalam menciptakan iklim sekolah yang positif sehingga terbebas dari perilaku perundungan. 
Perilaku Deformasi Tidak Linear SRPMK Baja 8 Lantai Akibat Gempa Faisal, Ade; Putera, Tondi Amirsyah; Efrida, Rizki
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 30, Nomor 2, DESEMBER 2024
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v30i2.62448

Abstract

The inter-story drift occurs as the result of rotational deformation on the frame’s joint affected by ground shaking. This rotational deformation occurs as an accumulation of bending deformation in beams and columns as well as shear deformation in the panel zone. The goal of this study is to analyze how cyclic non-linear deformation occurs in beam elements and zone panels. The 8-story steel moment resisting frame built on class D soil and designed for seismic design category D were used as model. Incremental nonlinear dynamic analysis was carried out using 20 earthquake ground motions that contained with and without pulse effects. This was done so in order to identify the median value and standard of deviation of the LS, CP, and collapse boundary conditions. Nonlinear flexure and shear deformations that occur in beam element and panel zone were explored. The results obtained show that the rotational deformation of the beam due to actual flexure is greater when compared to the rotational deformation at IDRmax reaches the first time LS and CP boundary conditions. The similar trend occurs in shear deformation of the panel zone.
Karakteristik Gugus Fungsi dan Kekuatan Impak Material Komposit Berpenguat Serat Serbuk Daun Nanas Tanjung, Iqbal; Lubis, Riadini Wanty; Nofri, Irfan; ., Affandi; Siregar, Chandra A; Siregar, Ahmad Marabdi; Efrida, Rizki
Rekayasa Material, Manufaktur dan Energi Vol 8, No 2: JULI 2025
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v8i2.25533

Abstract

The objective of this study is to investigate the impact strength and functional group characteristics, as identified through FTIR spectroscopy, of composite materials reinforced with pineapple leaf powder fibers that have undergone physical property enhancement via alkali treatment (NaOH). A series of processes were conducted to produce the pineapple leaf powder, starting with drying fresh pineapple leaves until they turned brown. The dried leaves were then cleaned and soaked in a 5% NaOH solution for durations of 1, 3, 5, 7, and 9 hours to modify their physical properties. After treatment, the leaves were rinsed thoroughly and oven-dried at 60°C for 5 hours. The dried leaves were subsequently ground and sieved using a 150-mesh screen. This study involved two main observations: functional group analysis using FTIR spectroscopy and mechanical performance evaluation through impact testing. A total of 30 composite specimens were prepared and fabricated using a stepwise lamination method, following the ASTM D256 impact testing standard. The results indicate that alkali treatment progressively degraded the hemicellulose and lignin content in the pineapple leaf fibers, significantly enhancing the impact energy absorption of the composite material. However, extended treatment durations adversely affected the fiber quality, leading to structural damage and reduced interfacial cohesion between the composite components.
Co-Authors Ade Faisal, Ph.D Affandi . Ahmad Marabdi Siregar Ferona, Naiza Hawari, Nadifatul Lubis, Riadini Wanty Mizanuddin Sitompul Muhammad Mabrur, Muhammad Nasution, Elvy Sahnur Nofri, Irfan Nofriadi Nur Sakinah Palghe Tobing Pasaribu, Hadianti Muhdinar Putera, Tondi Amirsyah Rhini Wulan Dary Rifq, Muhammad Ar Samiran Septiningtiyas , Dina Tri Siregar, Chandra A Siregar, Nurhabibi Tanjung, Iqbal Widi Astuti