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Driving Safety Education at Sewon Muhammadiyah Middle School, Bantul, Daerah Istimewa Yogyakarta: Edukasi Keselamatan Berkendaraan di SMP Muhammadiyah Sewon, Bantul, Daerah Istimewa Yogyakarta Anita Rahmawati; Sri atmaja P. Rosyidi; Hakas Prayuda; Taufiq I. Maulana
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 7 No. 4 (2023): Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v7i4.14511

Education about the importance of road safety is a way to shape children mindset and character, especially adolescence who have the potential to actively traffic on the road. Equipping them with knowledge and raising awareness of traffic rules in teenagers is expected to be able to help give them the best chance of keeping safe while they’re young and as they get older -become obeying people and pioneers of road safety. This service activity is a concrete step to create young people awareness about the importance of road and driving safety. Driving safety education at Sewon Muhammadiyah Middle School, Bantul becomes an effort to provide knowledge readiness for pre-teenagers (under 16 years) so that it is hoped that they will be scientifically and mentally ready to drive at the age of 17 and over (after they get a driver's license/SIM). From this community service activity, the results showed an increase in understanding related to driving safety for adolescence, especially children in grade 2 junior high school at Sewon Muhammadiyah Middle School, as indicated by the average pre-test results that answered correctly at 48.18% and post-test results that answered correctly at 81. 90%. There was an increase in understanding of safety education participants by 33.72%.

The The Structure Analysis of Five Floor Mall Building in Semarang City According to SNI 1726-2019 and SNI 2847-2019 Talitha Zhafira; Indra Bagus Kurniawan; Purwanto Purwanto; M Fahrul Hidayat; Hakas Prayuda
Journal of Civil Engineering and Planning (JCEP) Vol. 4 No. 1 (2023)
Publisher : Program Studi Sarjana Teknik Sipil Universitas Internasional Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37253/jcep.v4i1.6872

This structural planning of building that located in Mijen district is expected to became a practical economic center, complate, enjoy, and safety for society. The planning building based on Indonesian national standart regulation (SNI). SNI (2847-2019) â€œOn structural concrete requirements for the buildingsâ€ and SNI (1726-2019) â€œProcedures for planning and earthquake resistance for the building and non buildingâ€. For the planning is include of planning top and bottom structure that have a model of software ETABS 18 and Sp Column as a helper software. For the top structure it means include of the planning of roofs, beams, plat, column, and shearwall. Meanwhile the bottom structure it means include of foundations planning. This building is planned earthquake resistance based on earthquake data from website of Puskim-Kementrian PU. Based on the result of this structure is using double system with the special moment resisting frames and special slidding wall structural as a building earthquake resistance system. The result of this analysis is deviation between the floors direction X and Y is safety for service limit it, meanwhile for the analyse of vibration have fullfiled the rules. This is shows that the planning building can hold an earthquake resistance planning and had a good response during the earthquake.

Seismic Vulnerability Assessment of Regular and Vertically Irregular Residential Buildings in Nepal Paudel, Satish; Maulana, Taufiq Ilham; Prayuda, Hakas
Journal of the Civil Engineering Forum Vol. 10 No. 2 (May 2024)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jcef.10316

The need to assess the vulnerability of non-engineered residential RCC buildings in Nepal has become urgent, especially considering the ongoing modifications and additions to these structures without understanding their susceptibility to seismic events. Many residential buildings, particularly those up to three stories, did not fully comply to the guidelines outlined in Nepal Building Code NBC 105:2020. Therefore, there is a necessity to assess the seismic performance of these structures. This study aims to quantify the seismic vulnerability of such buildings by focusing on three distinct types: regular two and three-story structures, and irregular three-story structures. Using finite element modeling, the analysis of the buildings’ seismic capacity was performed through pushover analysis. Subsequently, linear time history analysis is conducted to determine the seismic demand. Two software were utilized to conduct the analyses, namely SAP2000 and STERA_3D. The study also includes the matching eleven strong ground motion inputs to Nepal’s site characteristics and response spectrum to ensure the relevance of the local context. Furthermore, fragility curves are constructed to compare the probability of structural failure, by first conducting the nonlinear dynamic analyses on the building specimens. The result showed that the probability of complete failure rises rapidly when an additional story is constructed with vertical irregularity, increasing from 1.8% to 5.7% in a non-engineered two-story building. The study also observes variations in top displacement across all three buildings due to differences in earthquake duration and frequency. From the findings, it is revealed that a significant increase in seismic vulnerability for vertically irregular buildings compared to regular ones

Kuat Tarik Belah Self-Compacting Concrete Dengan Bahan Tambah Abu Sekam Padi Sebagai Pengganti Agregat Halus Prayuda, Hakas; Monika, Fanny; Saleh, Fadillawaty; Ramadhan, Ramadhan; Cahyati, Martyana Dwi; Aji, Kartika Restu
Proceeding Universitas Muhammadiyah Yogyakarta Graduate Conference Vol. 1 No. 1 (2020): Armoring the Youth to Contribute to the SDGs
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (210.462 KB)

Self-compacting concrete (SCC) merupakan beton yang dapat mengalir dan memadat dengan berat sendirinya, sehingga dapat mempercepat dan mempermudah pengecoran dalam suatu pekerjaan proyek konstruksi. Tujuan penelitian ini adalah untuk mengetahui flowability dan kuat tarik self-compacting concrete dengan penambahan abu sekam padi sebagai pengganti sebagian agregat halus dan penambahan silica fume sebagai pengganti sebagaian semen. Abu sekam padi merupakan salah satu limbah hasil pertanian yang belum dimanfaatkan secara optimal, sehingga melalui penelitian ini diharapkan pemanfaatan abu sekam padi menjadi lebih efektif. Kadar silica fume yang digunakan sebesar 5% dari berat semen, sedangkan variasi abu sekam padi yang digunakan sebesar 20%, 40%, 60% dari berat agregat halus. Pengujian beton segar menggunakan metode slump flow, J-ring, L-box and V-funnel untuk mengukur kemampuan beton mengalir sendiri. Pengujian kuat tarik beton dilakukan pada umur 3 hari, 7 hari, 28 hari dengan benda uji berbentuk silinder ukuran 15 x 30 cm. Berdasarkan hasil penelitian didapat bahwa semakin tinggi kadar abu sekam padi yang digunakan maka kuat tarik mengalami penurunan. Kuat tarik optimal dimiliki oleh campuran abu sekam padi 20% dengan kuat tarik rata-rata sebesar 1,23 MPa pada umur 3 hari, 1,24 MPa pada umur 7 hari, 1,31 MPa pada umur 28 hari. Sedangkan melalui pengujian betonsegar menunjukkan bahwa abu sekam padi dapat digunakan sebagai bahan tampah untuk self-compacting concrete.

Determination of Resultant Forces for 2D Hyperstatic Frames using Android-Based Frame Design Application and Finite Element Analysis Hasibuan, Samsul A Rahman Sidik; Prayuda, Hakas
Andalasian International Journal of Applied Science, Engineering and Technology Vol. 3 No. 3 (2023): November 2023
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijaset.v3i3.109

The slope deflection method assumes all joints are considered rigid, which means the angle does not change under any loads. This ensures that compatibility and deflection are neglected due to shear and axial stress. The numerical determination of forces and deformation in structures through applying the slope deflection method necessitates a relatively extended computational time and demands high-precision results. An effective tool can efficiently and precisely determine internal forces and structural deformations. This study utilizes the Frame Design Application version 5177, initially released on 24 June 2012 and has since been updated as of 2 February 2022, an Android-based application. Utilizing the Frame Design Application facilitates the expeditious and precise determination of internal forces and structural deformations. It is a valuable tool for professionals in civil engineering, mechanical engineering, and architecture, as well as students seeking to build 2D hyperstatic frames through Finite Element Analysis (FEA). The primary objective of this paper is to evaluate the precision of the Frame Design Application to determine its suitability for educational purposes. This paper will also evaluate the precision of the analysis outcomes by manual calculations and the utilization of SAP2000 Software. The provided analysis results exhibit negligible disparities. The Frame Design Application is a highly recommended tool for those in civil engineering, mechanical engineering, architecture and students seeking to design 2D hyperstatic frames through Finite Element Analysis (FEA).

Survai Analisis Sarana dan Prasarana LRT Sumatera Selatan Dalam Menghadapi Covid-19 FADHILA FIRDAUSA; Sri Rezki Artini; Hakas Prayuda
Jurnal Penelitian Transportasi Darat Vol. 23 No. 2 (2021): Jurnal Penelitian Transportasi Darat
Publisher : Sekretariat Badan Kebijakan Transportasi, Formerly by Puslitbang Transportasi Laut, Sungai, Danau, dan Penyeberangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25104/jptd.v23i2.1741

ABSTRACTArticle title in English:The Covid 19 pandemic that has occurred for one year has made all activities experience social restrictions and the application of strict health protocols. Besides that, through this pandemic the community is expected to continue their activities as usual. This of course causes new habits and has a huge impact on the pattern of life today. The spread of covid 19 has made the use of public facilities a major highlight during this pandemic. South Sumatra Light Rail Transit (LRT) is a mode of public transportation in Palembang city. This LRT connects from the Sultan Mahmud Badarudin II airport station in Palembang City to the DJKA station in Banyuasin Regency. This study discusses the analysis of South Sumatra LRT facilities and infrastructure in the face of the Covid 19 pandemic. The methods used are survey and interview methods. The guidelines used refer to the Decree of the Minister of Health of the Republic of Indonesia Number Hk.01.07 / Menkes / 382/2020 concerning Health Protocols for Communities in Places and Public Facilities in the Context of Prevention and Control of Corona Virus Disease 2019 (Covid-19). The survey method was carried out in each LRT station, namely 13 stations and within the LRT itself. From the results obtained, it can be concluded that the facilities and infrastructure of the South Sumatra LRT have implemented the proper health protocol and in great shape.Keywords: covid 19; analysis; facilities and infrastructure; LRT, South Sumatera.ABSTRAKPandemi covid 19 yang telah terjadi selama satu tahun membuat seluruh aktivitas mengalami pembatasan sosial dan penerapan protokol kesehatan yang ketat. Disamping itu dalam melalui pandemi ini masyarakat diharapkan tetap melakukan aktivitasnya seperti biasa. Hal ini tentu menyebabkan kebiasaan baru dan sangat berakibat besar dalam pola kehidupan saat ini. Penyebaran covid 19 membuat penggunaan fasilitas umum menjadi sorotan utama dalam masa pandemi ini. Light Rail Transit (LRT) Sumatera Selatan merupakan moda transportasi umum yang ada di perkotaan Palembang. LRT ini menghubungkan dari stasiun bandara Sultan Mahmud Badarudin II yang berada di Kota Palembang ke stasiun DJKA yang berada di Kabupaten Banyuasin. Penelitian ini membahas mengenai analisis sarana dan prasarana LRT Sumatera Selatan dalam menghadapi pandemi Covid 19. Metode yang digunakan menggunakan metode survey dan wawancara. Pedoman yang digunakan mengacu pada Keputusan Menteri Kesehatan Republik Indonesia Nomor Hk.01.07/Menkes/382/2020 Tentang Protokol Kesehatan Bagi Masyarakat Di Tempat Dan Fasilitas Umum Dalam Rangka Pencegahan Dan Pengendalian Corona Virus Disease 2019 (Covid-19). Metode survey dilakukan disetiap stasiun LRT yaitu sebanyak 13 stasiun dan didalam LRT itu sendiri. Dari hasil yang didapat dapat disimpulkan bahwa sarana dan prasarana LRT Sumatera Selatan telah menerapkan protokol kesehatan yang ketat dan dalam kondisi sangat baik.Kata Kunci: covid 19; analisis; sarana prasarana; LRT; Sumatera Selatan

Besar Sudut Potongan Pada Balok Baja Castella Beam Terhadap Optimalisasi Tegangan Lentur Zega, Berkat Cipta; Imaduddin, Muhammad; Prayuda, Hakas
PUBLIKASI RISET ORIENTASI TEKNIK SIPIL (PROTEKSI) Vol 1 No 1 (2019)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/proteksi.v1n1.p30-36

ABSTRAKPenggunaan baja dalam konstruksi bangunan akhir-akhir ini semakin meningkat. Bahkan baja merupakan material pokok dalam sebuah struktur bangunan. Baja bisa digunakan sebagai balok, kolom, dan konstruksi atap. Dengan semakin banyaknya pengguna baja dalam konstruksi bangunan, maka semakin banyak juga jenis dan bentuk yang ditawarkan oleh pasar. Salah satunya adalah balok yang terbuat dari baja yaitu balok Castella Beam. Penelitian ini bertujuan untuk mengatahui optimalisasi tegangan lentur berdasarkan kuat lenturnya dengan mengubah besar sudut potongannya (Ã˜). Hasil penelitian menunjukkan bahwa dengan adanya penambahan besar sudut pemotongan profil pada balok kastela ada indikasi terjadi kerusakan geser pada penampang balok yang berlubang. Jika besar sudut pemotongan profil lebih dari 400, ada indikasi terjadi rusak geser pada penampang balok yang berlubang, akan tetapi pada besar sudut pemotongan profil kurang dari 400 mengalami pergoyangan (buckling) yang paling besar, dan momen, tegangan serta lendutan yang terjadi paling kecil. Ditinjau dari momen, tegangan, lendutan, dan pergoyangan (buckling) maka besar sudut pemotongan profil mulai dari 500 adalah profil yang memenuhi syarat, akan tetapi pada keadaan ini lemah terhadap gaya geser. Kata Kunci : Castella Beam, tegangan lentur, besar sudut potongan (Ã˜),gaya geser, momen, tegangan, lendutan, dan pergoyangan (buckling)

Determination of Resultant Forces for 2D Hyperstatic Frames using Android-Based Frame Design Application and Finite Element Analysis Hasibuan, Samsul A Rahman Sidik; Prayuda, Hakas
Andalasian International Journal of Applied Science, Engineering and Technology Vol. 3 No. 3 (2023): November 2023
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijaset.v3i3.109

The slope deflection method assumes all joints are considered rigid, which means the angle does not change under any loads. This ensures that compatibility and deflection are neglected due to shear and axial stress. The numerical determination of forces and deformation in structures through applying the slope deflection method necessitates a relatively extended computational time and demands high-precision results. An effective tool can efficiently and precisely determine internal forces and structural deformations. This study utilizes the Frame Design Application version 5177, initially released on 24 June 2012 and has since been updated as of 2 February 2022, an Android-based application. Utilizing the Frame Design Application facilitates the expeditious and precise determination of internal forces and structural deformations. It is a valuable tool for professionals in civil engineering, mechanical engineering, and architecture, as well as students seeking to build 2D hyperstatic frames through Finite Element Analysis (FEA). The primary objective of this paper is to evaluate the precision of the Frame Design Application to determine its suitability for educational purposes. This paper will also evaluate the precision of the analysis outcomes by manual calculations and the utilization of SAP2000 Software. The provided analysis results exhibit negligible disparities. The Frame Design Application is a highly recommended tool for those in civil engineering, mechanical engineering, architecture and students seeking to design 2D hyperstatic frames through Finite Element Analysis (FEA).

Pengaruh Ketidakberaturan Bentuk Bangunan Beton Bertulang Bertingkat Tinggi Terhadap Perilaku Seismik Prayuda, Hakas; Maulana, Taufiq Ilham; Putra, Firhan Mahreza Yunanto; Salsabila, Bella; Saleh, Fadillawaty
Jurnal Teknik Sipil Vol 30 No 2 (2023): Jurnal Teknik Sipil
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2023.30.2.17

Abstrak Penelitian ini bertujuan untuk menginvestigasi perilaku bangunan beton bertulang bertingkat tinggi yang memiliki ketidakberaturan bentuk arah vertikal dan horizontal terhadap beban seismik. Ketidakberaturan bentuk bangunan gedung bertingkat tinggi memiliki pengaruh dalam menahan beban gempa. Keterbatasan lahan serta pertimbangan efek eastetik menyebabkan seringkali bangunan bertingkat tinggi didesain tanpa mempertimbangkan ketidakberaturan bentuk. Penelitian ini menggunakan bangunan gedung 12 lantai yang didesain dengan dua tipe ketidakberaturan horizontal yaitu berbentuk T dan U. Masing-masing ketidakberaturan horizontal memiliki 5 variasi ketidakberaturan vertikal, sehingga total variasi pada penelitian ini terdiri dari 10 model. Struktur frame di analisis menggunakan software STERA 3D untuk analisis non-linier dinamik riwayat waktu. Tiga data gempa digunakan sebagai variasi beban seismik untuk masing-masing model yaitu data riwayat waktu gempa El-Centro, Kobe dan Parkfield. Perilaku seismik bangunan gedung yang diinvestigasi pada penelitian ini terdiri dari gaya geser, deformasi lateral, kekakuan bangunan, hubungan gaya geser dasar dengan deformasi, drift ratio dan percepatan maksimum. Hasil analisis numerik menunjukkan bahwa setiap model memiliki perilaku yang berbeda-beda ketika diberikan beban sesimik dan input kualitas material yang sama. Sehingga dapat disimpulkan bahwa ketidakberaturan bangunan arah horizontal dan vertikal sangat mempengaruhi perilaku sesimik bada bangunan gedung beton bertulang bertingkat tinggi Abstract The purpose of this study is to investigate the seismic behavior of high-rise reinforced concrete buildings with irregular shapes in the vertical and horizontal directions. The irregular shape of high-rise buildings has an effect on their ability to withstand earthquake loads. Due to limited area and aesthetic concerns, high-rise buildings are frequently designed without regard for irregular shapes. This study employs a 12-story structure with two different types of horizontal irregularities, namely T and U-shaped. Each horizontal irregularity has five vertical irregularity variations, for a total of ten models in this study. The frame structure was analyzed using the non-linear dynamics time history analysis software STERA 3D. Three earthquake data sets were used to generate seismic load variations for each model: the El-Centro, Kobe, and Parkfield earthquakes. The seismic behavior of the building investigated in this study included shear force, lateral deformation, stiffness of the structure, the relationship between base shear force and deformation, drift ratio, and maximum acceleration. The numerical analysis results indicate that each model behaves differently when subjected to the same seismic load and input material quality. Thus, the irregularity of the horizontal and vertical directions has a significant effect on the seismic behavior of high-rise reinforced concrete buildings.

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