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All Journal Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa JOURNAL OF CIVIL ENGINEERING, BUILDING AND TRANSPORTATION BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Abdimas Dewantara Praxis : Jurnal Sains, Teknologi, Masyarakat dan Jejaring Jurnal Rekayasa Konstruksi Mekanika Sipil Jurnal Pensil : Pendidikan Teknik Sipil Jurnal Muara Sains, Teknologi, Kedokteran dan Ilmu Kesehatan Jurnal Abdi Insani Jurnal ComunitA Servizio Jurnal Rekayasa Teknik Sipil dan Lingkungan Asian Journal of Community Services (AJCS) Journal of Infrastructure Planning and Engineering Jurnal Abdimas Maduma
Sudarno P Tampubolon
Teknik Sipil, Universitas Kristen Indonesia (UKI), Jakarta
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ANALYSIS THE INFLUENCE OF VARIATION SHEAR REINFORCEMENT SPACING IN REINFORCED CONCRETE BEAM TESTING Tampubolon, Sudarno P; Antonius, Dikky
Jurnal Pensil : Pendidikan Teknik Sipil Vol. 13 No. 2 (2024): Jurnal Pensil : Pendidikan Teknik Sipil
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jpensil.v13i2.44068

Abstract

Beams are crucial components of a building structure that require attention during the design phase. Several failures in beams occur due to inadequate installation of reinforcement according to the planned procedures or designs, which can lead to structural failures. Based on the analysis and testing of three reinforced concrete beams B1, B2, and B3 conducted in the laboratory, the maximum axial compressive strength obtained is 125 kN and the flexural tensile strength is 5.56 MPa. The deflection values observed for beam B1 7.05 mm, beam B2 8.4 mm, and beam B3 18.75 mm. The crack widths observed for beam B1 range from 0.1 to 0.4 cm, beam B2 range from 0.1 to 5 cm, and beam B3 range from 0.1 to 12 cm. Deflection values and crack patterns/failure modes observed in reinforced concrete beams B1, B2, and B3, it is evident that the most significant failure patterns occur in Beam B3 with a stirrup spacing @200mm compared to stirrup spacings @100mm and @150 mm. The use of 45° hooks on stirrups results in diagonal failure in beams. This is attributed to the strong bond between the concrete and the installed reinforcement, thereby interlocking with each other.
ANALISIS LENDUTAN DAN KUAT TEKAN PADA PENGUJIAN BALOK BETON BERTULANG DENGAN VARIASI JARAK SENGKANG MIRING SUDUT TEKUK 135° Simanjuntak, Irene Vista; Tampubolon, Sudarno P; Priska Marlen Duakaju; SOPHIAN TALENTA MENDROFA
Jurnal Rekayasa Teknik Sipil dan Lingkungan - CENTECH Vol. 5 No. 2 (2024): Jurnal Rekayasa Teknik Sipil dan Lingkungan, Oktober 2024, ISSN 2722-0230 (Onli
Publisher : UKI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/cen.v5i2.6406

Abstract

ABSTRACT The Failure of reinforced concrte beam structures can occur due to the function of tensile reinforcement, compression reinforcement, and stirrups not functioning properly so that the beam is unable to withstand/ support the working load. This study aims to analyze the strength of reinforced concrete beams using inclined stirrups at an angle of 135° with a variation of 100 mm and 150 mm. Reinforced concrete is chosen as a combination of concrete and steel to increase the tensile strength that concrete does not have. The Ultimate Stress Design (USD) method is used to design reinforced concrete element structures. The test involved two samples of reinforced concrete beams measuring 15x15x80 cm. Based on the test, the average compressive strength of 100 mm concrete beams was 28 MPa and 150 mm was 29 MPa. The tensile test of D-13 threaded steel reinforcement produced an fy of 354 MPa and D-8 plain fy value of 369 MPa. The flexural strength of concrete beams at stirrup distances of 100 mm and 150 mm was recorded at 23.67 Mpa with a maximum deflection occurring in beam B-1 of 46.4 mm and a maximum deflection in beam B-2 of 47 mm. The results of this study provide important information about the effect of variations in inclined stirrups on the structural performance of reinforced concrete in increasing the flexural and shear strengths that occur in beams. Keywords: Reinforced Concrete, Diagonal Stirrup Reinforcement, Compressive Strength, Ultimate Stress Design (USD), Ultimate Moment Capacity, Tensile Test, Bending Strength.
Peninjauan dan Pengukuran Eksisting Bangunan Gereja HKBP Ressort Perumnas Klender Sudarno P Tampubolon; Grace Putri Dianty; Candra Christianti Purnomo; Sally Septania Napitupulu
JURNAL Comunità Servizio : Jurnal Terkait Kegiatan Pengabdian kepada Masyarakat, terkhusus bidang Teknologi, Kewirausahaan dan Sosial Kemasyarakatan Vol. 4 No. 1 (2022): APRIL
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM), Univesitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/cs.v4i1.3804

Abstract

Planning/ design of a mature structure is very important in constructing a building. This is one of the goals of the Faculty of Engineering Community Service (PKM) held at the HKBP Resort Church of Perumnas Klender. The activities carried out are measuring and depicting existing church buildings that have stood, where these images can be used by the Church for the development and improvement of the Church in the future. The method used in this PKM is to conduct a field survey to be able to prepare measurements of the church building, then take measurements and draw the initial sketch of the church building on the first and second floors as a whole, until at the end of the activity a 2-dimensional drawing of the church building is carried out according to the measurements that have been made. in the field. This PKM activity produces two-floor dimensional plan builds analyzed by architectural and civil perspectives. Keywords: measurement and drawing; church building, Klender housing estate.
Sosialisasi Program Biopori dan Pemanenan Air Hujan di Kelurahan Kramat Jati Jakarta Timur Sudarno P Tampubolon; Risma M Simanjuntak; Agnes Sri Mulyani; Setyadi; Deviana Pratiwi Munthe; Michel Tambunan
JURNAL Comunità Servizio : Jurnal Terkait Kegiatan Pengabdian kepada Masyarakat, terkhusus bidang Teknologi, Kewirausahaan dan Sosial Kemasyarakatan Vol. 6 No. 2 (2024): OKTOBER
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM), Univesitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/cs.v6i2.6138

Abstract

Abstract Water is an essential and vital resource for all living organisms; without it, life on Earth would be unsustainable. Although the Earth has abundant water, the available supply of clean water is insufficient to meet demand, causing many people to suffer from water scarcity. Water shortages can be triggered by rising demand due to population growth, uneven water distribution, increasing water pollution, and inefficient water use. The misuse of water, especially in large cities, is alarming, as water exploitation can reduce water sources and disrupt water sustainability. Groundwater has various benefits, particularly as a primary source of clean water for communities, compared to surface water sources. Additionally, groundwater supports environmental stability by preventing land subsidence, sea water intrusion, and worsening groundwater pollution. To anticipate water shortages, alongside wise and controlled water usage, rainwater harvesting can be employed as an alternative water source. One method of water conservation in every household is rainwater harvesting, which involves collecting, storing, and conserving rainwater. Rainwater harvesting has been practiced for centuries in various countries experiencing water shortages. Harvested rainwater can be used for multiple purposes, such as watering plants, washing, bathing, and even cooking if the water quality meets health standards. The creation of biopores is another alternative in groundwater conservation, as this method returns surface water back into the ground. Given the above points, a team of lecturers and students from the Civil Engineering Study Program is attempting to provide training to the Kramatjati community on how to independently conserve water in each household. Keywords: Socialization; rain water harvesting; biopores
Analisa Perilaku Balok Beton Bertulang dengan Menggunakan Simulasi VecTor2 Tampubolon, Sudarno
Jurnal Rekayasa Konstruksi Mekanika Sipil Vol 3 No 2 (2020): Volume 3 Nomor 2 Tahun 2020
Publisher : Fakultas Teknik Universitas Katolik Santo Thomas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/jrkms.v3i2.898

Abstract

Kegagalan struktur dapat berdampak buruk pada tingkat kenyamanan struktur. Penting untuk mengetahui perilaku struktur akibat beban yang ditopang karena dapat membantu memprediksi kekuatan struktur dan kenyamanan struktur yang sedang dikerjakan. Salah satu cara untuk mengetahui dan memprediksi kekuatan dan kenyamanan struktur akibat beban yang diterima adalah dengan melakukan pengujian laboratorium dan simulasi. Simulasi VecTor2 digunakan untuk memprediksi gaya geser, retak, dan displacement yang terjasi pada balok beton bertulang pada saat diberikan beban perpindahan. Tegangan ikatan (bond-slip) memberikan pengaruh yang besar terhadap kekuatan dan respon histeris pada balok tipe A1 dan A2. Oleh karena itu, penelitian ini juga mengkaji pengaruh bond-slip terhadap kekuatan balok beton bertulang. Seluruh hasil simulasi VecTor2 dengan menggunakan bond stress-slip effect akan dibandingkan dengan hasil pengujian eksperimen untuk melihat keakuratan simulasi VecTor2. Pada penelitian ini diperoleh nilai bond-slip 0,08 dan perbandingan nilai rasio untuk semua beban puncak antara 1,05 dan 1,06.
PENGEMBANGAN USAHA MANDIRI MASYARAKAT DESA SRIMAHI KECAMATAN TAMBUN UTARA DENGAN PEMANFAATAN LIMBAH SEKAM PADI SEBAGAI CAMPURAN BETON PAVING BLOCK DAN BATAK Tampubolon, Sudarno P; Lase, Formas Juitan; Sudarwani , Margareta Maria; Sari , Desma; Nataldo , Benny Tri; David , Charly
Jurnal Abdi Insani Vol 11 No 4 (2024): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v11i4.2150

Abstract

The Community Service Program (PKM) aims to utilize rice husk waste as a mixture in making bricks and paving blocks. Rice husk waste produced from the rice milling process often causes environmental problems. Therefore, through education and training to Zaracon Group Raja Block, through processing rice husk waste into products that have economic value and are environmentally friendly. The methods used include the fabrication of tools, rice husk burning, laboratory testing, socialization, training, and the production of paving blocks using rice husk ash. The results of this program show that paving blocks made using a mixture of rice husk ash have good strength and durability. In addition, this program is also able to improve the skills, insights, and knowledge of the community in processing rice husk waste, so that it can open in business development production of paving block and brick concrete. Keywords: Rice husks, bricks concrete, paving blocks, waste management, community empowerment.
SOSIALISASI DAN PEMANFAATAN DAUR ULANG LIMBAH PLASTIK SEBAGAI CAMPURAN PEMBUATAN PAVING BLOCK DI KELURAHAN CAWANG Srimulyani, Agnes; Pane, Medyawanti; Setiyadi, Setiyadi; Tampubolon, Sudarno P; Louisa , Agnes; Yonathan, Yonathan; Doroti, Doroti
Jurnal Abdi Insani Vol 12 No 3 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i3.2275

Abstract

Limbah plastik merupakan ancaman serius bagi lingkungan, menyebabkan pencemaran air, tanah, dan udara serta berkontribusi terhadap perubahan iklim. Pengelolaan yang buruk memperparah masalah ini, sementara daur ulang masih minim. Di Kelurahan Cawang, Bank Sampah Cawang Hijau Indah berupaya mengelola sampah dengan mendaur ulang plastik menjadi produk bernilai ekonomi. Tim PKM Teknik Sipil UKI berencana mengedukasi masyarakat tentang pemanfaatan limbah plastik sebagai campuran paving block, mendorong inovasi berkelanjutan, pemberdayaan masyarakat, serta pengalaman mahasiswa dalam solusi lingkungan yang ramah dan efisien. Program kemitraan masyarakat ini menerapkan asistensi teknis melalui pelatihan dan pendampingan untuk meningkatkan pengelolaan sampah. Kegiatan mencakup sosialisasi, pemilahan sampah, pelatihan produksi paving block, dan evaluasi. Metode ini mendorong partisipasi masyarakat, pemanfaatan limbah plastik berkelanjutan, serta pengembangan usaha mikro untuk manfaat lingkungan dan ekonomi. Hasil sosialisasi menunjukkan peningkatan pemahaman peserta tentang bahaya limbah plastik dan cara pengolahannya menjadi bahan campuran paving block. Hasil pelatihan membuktikan bahwa peserta mampu mengoperasikan alat pencacah sampah dan menerapkan teknik pencampuran plastik dengan bahan lain. Hasil simulasi produksi paving block menunjukkan kualitas yang memenuhi standar. Hasil evaluasi menunjukkan antusiasme tinggi dari peserta, dengan harapan program ini berkelanjutan dan membuka peluang usaha berbasis daur ulang untuk meningkatkan kesejahteraan masyarakat di Kelurahan Cawang. Kesimpulan menunjukkan bahwa pemanfaatan limbah plastik sebagai campuran paving block efektif mengurangi sampah dan meningkatkan kesadaran serta keterampilan Kelompok Malisa dalam mengolah sampah menjadi produk bernilai ekonomi di Kelurahan Cawang.
Desain pengembangan bangunan dan pengecekan struktur Gereja HKBP Ressort Perumnas Klender Tampubolon, Sudarno P; Napitupulu, Sally Septania; Dianty, Grace Putri; Purnomo, Candra Christianti; Kristofel, Andreas Samuel; Indry, Jessica Miracella
ABDIMAS DEWANTARA Vol 7 No 1 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/ad.v7i1.16042

Abstract

Dalam pengembangan eksisting bangunan Gereja sangatlah dibutuhkan perencanaan/ desain struktur yang matang. Hal ini menjadi dasar dari kegiatan Pengabdian Kepada Masyarakat (PkM) Fakultas Teknik yang di adakan di Gereja HKBP Ressort Perumnas Klender. Adapun tujuan dari kegiatan ini adalah membantu pembuatan gambar as-built drawing 2-D, 3-D, dan pengecekan struktur dalam rangka pengembangan Gereja HKBP Ressort Perumnas Klender, dimana gambar tersebut akan digunakan oleh pihak Gereja untuk pengembangan dan perbaikan Gereja di masa yang akan datang. Metode yang digunakan dalam PkM ini adalah analisis deskriptif. Tim PkM melakukan peninjauan, pengukuran eksisting bangunan di lapangan, menggambarkannya dalam bentuk 2-D dan 3-D, dan pengecekan eksisting struktur gereja (kolom, pelat, balok) yang nantinya digunakan di dalam pengembangan bangunan baru Gereja pada daerah konsistori. Hasil dari PKM ini adalah denah eksisting Gereja dalam bentuk 2-D dan 3-D, serta analisa struktur bangunan dari segi arsitektur dan sipil.    Design development of building and structural inspection of HKBP Ressort Perumnas Klender Church   Abstract: In developing existing church buildings, careful planning/structural design is very necessary. This is one of the objectives of the Faculty of Engineering's Community Service (PKM) which is held at the HKBP Ressort Perumnas Klender Church. The activities carried out are drawing as-built drawings in 2-D and 3-D and checking the structure in the development plan for the HKBP Ressort Perumnas Klender Church, where the Church can use these drawings for the development and improvement of the Church in the future. The method used in this PKM is to inspect and measure existing buildings in the field, draw floor plans for the 1st and 2nd floors of the church, and then draw plans for the development of the church, as well as 3-D drawings. Apart from that, checks were also carried out on the existing church structures (columns, plates, beams), which would later be used in the development of new church buildings in the church consistory area. The results of this PKM are 2-dimensional and 3-dimensional church development plans as well as an analysis of the building structure from an architectural and civil perspective.
Building Assessment Post Earthquake 21 November 2022 in Cianjur District Tampubolon, Sudarno P; Mulyani, Agnes Sri; Setyadi, Setyadi; Simanjuntak, Risma M
Asian Journal of Community Services Vol. 3 No. 8 (2024): August 2024
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/ajcs.v3i8.10819

Abstract

The earthquake that occurred in the Cianjur area, West Java on Monday 21 November 2022 at 13.21 WIB resulted in 635 fatalities and 56,000 houses that were damaged. The results of the assessment found that many houses and public facility buildings still did not meet the requirements for earthquake-resistant buildings, especially in the use of concrete materials, main reinforcement, stirrups in columns, beams, foundations and beam-column joint, and did not have a strong column-weak beam planning concept. This can be seen from the inability of the column to withstand/ carry the working load which causes the column to collapse and damage. Therefore, it is very necessary to pay attention to building planning in Disaster Prone Areas (DPA) in accordance with earthquake resistant building regulations SNI 1726:2019 and SNI 2847:2019
Sosialisasi, Pelatihan, dan Pemanfaatan Daur Ulang Limbah Plastik Sebagai Campuran Pembuatan Paving Block di Bank Sampah Berkah Srikandi Jakarta Timur Tampubolon, Sudarno P; Pane , Medyawanti; Fau , Martinus Nifotuho; Hutagalung, Charly David; Zebua, Prestasi Aswinda; Kafolapada, Yohan K.; Tomaluweng, Zefanya
JURNAL ABDIMAS MADUMA Vol. 4 No. 3 (2025): Oktober, 2025
Publisher : English Lecturers and Teachers Association (ELTA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52622/jam.v4i3.526

Abstract

Limbah plastik merupakan salah satu permasalahan lingkungan yang serius karena sulit terurai dan volumenya terus meningkat. Bank Sampah Berkah Srikandi merupakan salah satu bank sampah pengolahan limbah plastik yang belum optimal di dalam pengelolaan sampah, sehingga nilai ekonominya masih rendah. Program Pengabdian kepada Masyarakat ini bertujuan memberikan solusi melalui sosialisasi, pelatihan, dan daur ulang limbah plastik sebagai bahan campuran pembuatan paving block ramah lingkungan. Metode pelaksanaan meliputi persiapan, sosialisasi mengenai bahaya limbah plastik, pelatihan penggunaan mesin pencacah, dan praktik pembuatan paving block dengan campuran limbah plastik PET. Hasil kegiatan menunjukkan antusias dari warga untuk mengetahui bagaimana proses pengolahan limbah plastik menjadi material campuran dalam pembuatan paving block karena hal ini masih inovasi yang baru bagi masyarakat. Di dalam praktik pembuatan paving block digunakan 1,64 kg plastik PET yang sudah di cacah untuk bahan campuran pembuatan paving block. Produk paving block yang dihasilkan memiliki daya serap air relatif tidak signifikan, berbeda dengan paving normal yang lebih porus sehingga sangat baik untuk digunakan dan memiliki nilai ekonomis serta ramah lingkungan. PkM ini membangun kesadaran masyarakat terhadap konsep ekonomi sirkular serta membuka peluang usaha mikro berbasis daur ulang plastik. Kata Kunci : Limbah plastik; PET; Mesin Pencacah; Sosialisasi; Pelatihan; Paving Block
Co-Authors Antonius, Dikky Candra Christianti Purnomo Chatarina Finella Dady Supriadi Dang Thanh Trung David , Charly Deviana Pratiwi Munthe Dianty, Grace Putri Doroti, Doroti Elferida Sormin Fau , Martinus Nifotuho Formas Juitan Lase Fuk Jin Oei Fuk Jin Oei Grace Putri Dianty Gracela P. Tarapandjang Haposan Sahala Raja Sinaga Hutabarat, Lolom Hutagalung, Charly David I Gede Dhana Putra Sanjaya I Nengah Sinarta I Putu Ellsa Sarassantika I Wayan Gede Suarjana I Wayan Maesa Andreasnata I. P. Ellsa Sarassantika Ida Bagus Gede Parama Putra Indry, Jessica Miracella Irene Vista Simanjuntak Iwan B. Santoso John fernando silalahi Kafolapada, Yohan K. Kristofel, Andreas Samuel Lolom Evalita Hutabarat Louisa , Agnes Michel Tambunan Mulyani, Agnes Sri Naibaho, Lamhot Nataldo , Benny Tri Nelius Harefa Ni Komang Armaeni Pane , Medyawanti Pane, Medyawanti Paskalis Halawa Pinondang Simanjuntak Pinondang Simanjuntak Priska Marlen Duakaju Purnomo, Candra Christianti Risma M Simanjuntak Roro Sulaksitaningrum Sally Septania Napitupulu Sally Septania Napitupulu Sari , Desma Setiyadi Setiyadi Setiyadi, Setiyadi Setyadi Setyadi Setyadi Simanjuntak P Simanjuntak, Irene Vista Simanjuntak, Risma M SOPHIAN TALENTA MENDROFA Srimulyani, Agnes Steffy Catharina Rebeccha Simbolon Sudarwani , Margareta Maria Tomaluweng, Zefanya Ulinata Ulinata Ulinata Yonathan, Yonathan Zebua, Prestasi Aswinda