Article Per Year (5 Year)
p-Index From 2021 - 2026
2.727
P-Index
This Author published in this journals
All Journal Biosfer: Jurnal Tadris Biologi PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Biogenerasi BINOMIAL : Jurnal Pendidikan Biologi INJECTION: Indonesian Journal of Vocational Mechanical Engineering Mestaka: Jurnal Pengabdian Kepada Masyarakat Retensi Lestari: Jurnal Pengabdian Kepada Masyarakat
Riyanti, Rika
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Public Health Social Sciences Transportation Other

Published : 14 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search
Journal : Retensi

 1 
ANALISIS SARANA DAN PRASARANA SMA MUJAHIDIN PONTIANAK: ANALISIS SARANA DAN PRASARANA SMA MUJAHIDIN PONTIANAK Maulana, Bagus; Andoni, Sulistyo Sapta; Rabihati, Etty; Riyanti, Rika
RETENSI Vol. 2 No. 1 (2021): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v2i1.438

Abstract

Senior High School (abbreviated SMA) is a secondary level of formal education in Indonesia after graduating from Junior High School (or its equivalent). High school is taken within 3 years, starting from grade 10 to grade 12. The school that will be studied by the author has several problems that occur, therefore the author is interested in conducting research on facilities and infrastructure in the school. Therefore, the author submitted a questionnaire in order to find out what problems occurred in the school. The purpose of this study is that students are able to analyze the facilities and infrastructure of the Pontianak Mujahidin High School, able to overcome the problems that occur in the environment. The methods used in solving this problem are qualitative methods and quantitative methods. The qualitative method is subjective in nature, the research interacts directly with the object being studied. Meanwhile, quantitative methods are objective, independent research is what is being studied. Facilities and infrastructure problems that occur include the parking area which is enlarged by 33% from the initial area and the elevation of the parking area. The second is the widening of the dimensions of the enlarged drainage channel in order to prevent flooding. Finally, by increasing the dimensions of the classroom lighting so that the classroom lighting is sufficient.
PERANCANGAN RUSUNAWA TPI 4 LANTAI DI JALAN PEMBANGUNAN KECAMATAN PONTIANAK BARAT KOTA PONTIANAK Nathania, Stella; Mahendra, Erick; Rosanti, Indah; Riyanti, Rika
RETENSI Vol. 3 No. 2 (2023): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v3i2.566

Abstract

ABSTRACT The development of housing is one of the primary needs that must be met for human survival. As time goes on, humans grow very quickly with the increasing need for housing, also economically for the lower middle class people, the more diverse jobs that require people to no longer be able to own a house because of land and expensive housing prices. Therefore we need a place to live that can be inhabited en masse for low-income people. For the sake of creating an ideal urban and population structure, rental flats can be one solution. Planning and designing rental flats that are livable and a healthy, safe, harmonious, and sustainable environment as well as creating integrated settlements to build economic, social and cultural. In the design of graded building is important to note several criteria, referring to The Regulation of Minister of Public Housing of Republic Indonesian Number 10 in 2012 is about Implementation of Housing and Residential Areas with Balanced Occupancy. In this writing, the design of TPI Rental Flats is using site location data, namely residential areas with an area according to the selected location is very open to developing flats that are integrated with the surrounding residential environment as well as environmental data around the site, such as sun and wind. Based on design result, it was obtained that the design concept of TPI Rental Flats in Pontianak is emphasized on Metaphor concept, so in design can representing livable life for low-income residents. Then the rooms designed in the TPI Rental Flats are consist of 3 types, namely type 36 as many 20 rooms, type 45 as many 15 rooms and type 60 as many 20 rooms with a total occupant of 737 persons. In calculating the reservoir requirements, the volume of the upper reservoir is 60.4 m3 with dimensions of 2 x 8 x 1.2 m for 2 pieces, while the lower reservoir is 90.6 m3 with dimensions of 4 x 8 x 1.8 m for 1 unit. In designing a fire protection system, the number of hydrants used in the building is 9 with a volume of 410400 liters, the number of yard hydrants used is 9 with a volume of 1539000 liters and the number of sprinklers used is 454 with a volume of 232902 liters, so that the total water requirement is 2182302 liters. For designing the dimensions of the structure, the dimensions of the columns used are 50x50 cm and the dimensions of the main beams and the joists respectively are 35x75 cm and 25x50 cm. Keywords: rental flats building, design, metaphor concept (human)
PENGARUH PENAMBAHAN LIMBAH BIJI SALAK SEBAGAI BAHAN CAMPURAN BETON TERHADAP KUAT TEKAN BETON: PENGARUH PENAMBAHAN LIMBAH BIJI SALAK SEBAGAI BAHAN CAMPURAN BETON TERHADAP KUAT TEKAN BETON Tri Rezki, Ayu; Rachmadani, Destyah; widhiyastuti, rahayu; riyanti, rika
RETENSI Vol. 3 No. 2 (2023): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v3i2.656

Abstract

Beton merupakan salah satu material yang umum digunakan oleh masyarakat sebagai bahan konstruksi. Dalam pembuatan beton, bahan penyusun yang sering digunakan adalah semen, pasir, batu pecah, dan air. Kualitas beton tergantung dari bahan penyusunnya seperti batu pecah, untuk mengurangi jumlah kebutuhan bahan batu pecah, maka perlu dicari alternatif lain sebagai bahan pengisi beton yaitu dengan menggunakan limbah biji salak. Penggunaan bahan limbah biji salak bertujuan untuk mengurangi limbah sisa biji salak yang selama ini dibuang begitu saja dan menjadi sampah yang mencemari lingkungan. Metode penelitian ini menggunakan metode eksperimen dimana penelitian dilakukan untuk mengetahui pengaruh kuat tekan beton dengan bahan tambah limbah biji salak sebagai pengganti sebagian agregat kasar dengan mutu beton rencana f'c 16,9 Mpa. Perencanaan campuran beton dengan bahan tambah limbah biji salak sebagai pengganti sebagian agregat kasar dibuat dengan beberapa persentase yaitu 5%, 10% dan 15%. Setelah dilakukan penelitian dan pengujian benda uji pada umur 7 hari, didapatkan hasil bahwa beton dengan bahan tambah limbah biji salak sebagai pengganti sebagian agregat kasar pada persentase 5% memenuhi nilai kuat tekan yang direncanakan, sedangkan untuk persentase 10% dan 15% mengalami penurunan nilai kuat tekan beton. Kata Kunci : Beton, Limbah Biji Salak, Kuat Tekan Beton,Metode Perawatan, Agregat Kasar Beton merupakan salah satu material yang umum digunakan oleh masyarakat sebagai bahan konstruksi. Dalam pembuatan beton, bahan penyusun yang sering digunakan adalah semen, pasir, batu pecah, dan air. Kualitas beton tergantung dari bahan penyusunnya seperti batu pecah, untuk mengurangi jumlah kebutuhan bahan batu pecah, maka perlu dicari alternatif lain sebagai bahan pengisi beton yaitu dengan menggunakan limbah biji salak. Penggunaan bahan limbah biji salak bertujuan untuk mengurangi limbah sisa biji salak yang selama ini dibuang begitu saja dan menjadi sampah yang mencemari lingkungan. Metode penelitian ini menggunakan metode eksperimen dimana penelitian dilakukan untuk mengetahui pengaruh kuat tekan beton dengan bahan tambah limbah biji salak sebagai pengganti sebagian agregat kasar dengan mutu beton rencana f'c 16,9 Mpa. Perencanaan campuran beton dengan bahan tambah limbah biji salak sebagai pengganti sebagian agregat kasar dibuat dengan beberapa persentase yaitu 5%, 10% dan 15%. Setelah dilakukan penelitian dan pengujian benda uji pada umur 7 hari, didapatkan hasil bahwa beton dengan bahan tambah limbah biji salak sebagai pengganti sebagian agregat kasar pada persentase 5% memenuhi nilai kuat tekan yang direncanakan, sedangkan untuk persentase 10% dan 15% mengalami penurunan nilai kuat tekan beton. Kata Kunci : Beton, Limbah Biji Salak, Kuat Tekan Beton,Metode Perawatan, Agregat Kasar
Manajemen dan Rekayasa Lalu Lintas Terhadap Dua Simpang Bersinyal Yang Berdekatan (Studi Kasus Simpang Empat Jalan KH.A Dahlan – Jalan Karimata – Jalan Johar dan Simpang Tiga Jalan KH.A Dahlan – Jalan Alianyang – Jalan KHW. Hasyim) Pontianak: Manajemen dan Rekayasa Lalu Lintas Terhadap Dua Simpang Bersinyal Yang Berdekatan (Studi Kasus Simpang Empat Jalan KH.A Dahlan – Jalan Karimata – Jalan Johar dan Simpang Tiga Jalan KH.A Dahlan – Jalan Alianyang – Jalan KHW. Hasyim) Pontianak nernawani, nernwani; Rabihati, Etty; riyanti, rika
RETENSI Vol. 4 No. 1 (2023): Retensi
Publisher : Jurusan Teknik Sipil Polnep

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/retensi.v4i1.724

Abstract

The number of intersections with adjacent intersections in Pontianak City raises its own problems, one of which is the signalized intersection on Jalan KH. Ahmad Dahlan Pontianak. The short - term strategy to overcome these problems is traffic management and engineering to improve traffic flow based on field condition evaluation . Data collection was carried out by means of direct surveys at both intersections. The data obtained is used to obtain the existing conditions which will be a reference in planning a new cycle time by taking into account the coordination theory. Meanwhile, in calculating to get the best performance at each intersection, it is done using the MKJI approach. The best performance at each intersection is then coordinated using the green time between intersections. The results of the analysis of the performance of the existing conditions show that the degree of saturation is DS = 0.86 for signalized intersection 4 and DS = 0.68 for signalized intersection 3 which are not too different from what MKJI requires, DS = 0.75 , but it is not comfortable and safe to go through. From the queue length (QL) at the four intersection of 288 meters > the distance between the intersections which is 200 meters apart, and also from the delay time (DQ) of 66.03 seconds > from the green cycle time of 25 seconds, After knowing the performance of the existing intersection, then create a new cycle time planning for both intersections. The new cycle time with the best performance will be used to coordinate the two intersections. Selection of the best cycle time by comparing the values ​​of the degree of saturation (DS), the length of the queue (QL), and the delay (Delay) from several alternatives that were carried out. From the results of the study, a new cycle time of 95 seconds was obtained. The offset time used is 36 seconds, and the bandwidth from East to West and from West to East is 16 seconds. With the new cycle time the performance values ​​of the two intersections get better because the average delay and queue length decrease, for intersection 4 (DS = 0.76; QL = 136 m; DQ = 67 seconds) and intersection 3 (DS = 0, 67; QL = 94.5 m ; DQ = 65.37 seconds),
Co-Authors Agus Setiawan Alimah, Adila Amalia Nur, Rizki Andoni, Sulistyo Sapta Arif, Robby Mauludy Asha, Muhammad Toasin Daryono Daryono, Daryono Dedy Setiawan Dewi, Shary Didik M Nur Haris, Didik M Nur Ernawati Ernawati Farham, Muhammad Haffiyan, Qalby halim, adila Haris, Didik Nur Indah Lestari, Pertiwi Lestari, Pertiwi Indah Mahendra, Erick Maulana, Bagus Mauludy, Robby MUHAMMAD ALI Nasir, A. Muhajir nernawani, nernwani Ningsi, Sri Fitria Wahyu Nirfayanti, Nirfayanti Nur, Rizki Amalia Nurhidayah Nurhidayah Nurul Amalia Nurwahida Nurwahida, Nurwahida Perangin Angin, Imanuel Kemenangenta Pongpalilu, Fien Pratama, Wahyu Wira Prihantoro, Topan Purnama, Ihkwan Arief Rabihati, Etty Rachmadani, Destyah Rahmawati, Rahmawati Randy Setiawan, Randy Reski, Indah Anjar Rosanti, Indah Rusdi, Hikmah Sasongko, Hartanto Wahyu Septiana, Windy Sofiana, Evi Stella Nathania Suryaningsih, Ita Syamsuriyawati, Syamsuriyawati Tri Rezki, Ayu widhiyastuti, rahayu Zul, Wardania