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Potential of Reinforced Indonesian Glulam Beams Using Grade I (Bengkirai), Grade II (Kamper), Grade III (Nyatoh) Woods for Use in Structural Wood Design Sugiri, Saptahari; Alamsyah, Eka Mulya; Usman, Arie Putra
Journal of Engineering and Technological Sciences Vol 48, No 2 (2016)
Publisher : ITB Journal Publisher, LPPM ITB

Wood is a natural resource that is renewable and available in various species in tropical countries. Its abundancy in nature makes it easy to obtain, thus making it a nature friendly material for use in construction. Indonesia is the most important source of tropical wood in the world after Brazil, making the use of wood for structural elements very desirable. It is estimated that 4000 different varieties of wood exist in Indonesia. This estimate is based on the herbarium species collected by the Forestry Research Institute, currently counting nearly 4000 types of trees with a diameter of more than 40 cm. In the Indonesian wood structure code, the strength of woods is divided into 3 grades (grade I, II and III). This paper presents an evaluation of the mechanical properties of glulam wood sourced from native Indonesian timber: Bengkirai wood (grade I), Kamper wood (grade II), and Nyatoh wood (grade III), thus proving the potential for Indonesian wood as industrial structural elements in wooden constructions.

Analysis of the Strength of Timber and Glulam Timber Beams with Steel Reinforcement Usman, Arie Putra; Sugiri, Saptahari
Journal of Engineering and Technological Sciences Vol 47, No 6 (2015)
Publisher : ITB Journal Publisher, LPPM ITB

Indonesia is a tropical country with abundant tropical timber that can be used as a building material. Wood is a renewable material, thus making it an environmentally friendly construction material. However, the dimensional limitations of solid wood may pose problems in structural constructions. Wood material also has some disadvantages, such as brittle failure. However, the ductility of wood can be increased because of plasticity occurring in the compression zone. Wood material with good ductility can be obtained by reinforcing it in the tensile zone. This study is about the strength of wood material for use as a material for structural elements. Based on the analytical findings, the bending capacity of wood can be improved by adding reinforcements to the tensile zone.

Analisis Respons dan Kinerja Struktur Bangunan Gedung Menggunakan Pushover Analysis: Analysis of Response and performance of Building Structures Using Pushover Analysis Arie Putra Usman; Rosidawani; Sri Palta Mutmainna
JURNAL SAINTIS Vol. 21 No. 02 (2021)
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/saintis.2021.vol21(02).7585

[ID] Indonesia merupakan negara dengan resiko gempa tinggi, hal ini diakibatkan oleh pertemuan lempeng-lempeng tektonik utama dan lempeng kecil lainnya yang mengelilingi Indonesia. Setiap wilayah indonesia memiliki tingkat resiko gempa yang berbeda-beda, mulai dari resiko gempa rendah hingga resiko gempa tinggi. Tujuan dari penelitian ini adalah mengetahui perbandingan respons dan kinerja struktur suatu bangunan gedung di beberapa wilayah yang mewakili tingkat resiko gempa rendah hingga tinggi. Adapun wilayah-wilayah yang ditinjau dalam penelitian ini yaitu wilayah Pontianak, Palembang, Jakarta, Bandar Lampung, dan Palu. Analisis dilakukan pada bangunan beton bertulang empat lantai dengan dinding geser dengan menggunakan bantuan program SAP 2000 guna mendapatkan repons dan kinerja struktur. Hasil respons struktur dari penelitian menunjukkan nilai simpangan lateral lantai dari yang terbesar hingga terkecil yaitu dimulai dari wilayah Palu, Bandar Lampung, Jakarta, Palembang, dan Pontianak. Wilayah Palu memiliki nilai simpangan lateral lantai yang terbesar yaitu 23,745 mm dan 23,690 mm untuk arah X dan Y sedangkan wilayah Pontianak memiliki nilai simpangan lateral lantai terkecil dengan besar simpangan lateral 7,571 mm dan 7,439 mm untuk arah X dan Y. Berdasarkan analisis pushover didapatkan level kinerja struktur memiliki level kinerja B untuk Wilayah Palu dan IO untuk wilayah lainnya. [EN] Indonesia is a country with a high risk of earthquake due to the meeting of the main tectonic plates and other small plates that surround Indonesia. Each area in this country has a different level of earthquake risk, ranging from low to high earthquake risk. This study aims to compare the response and structural performance of buildings in some areas with low to high earthquake risk levels. The areas covered Pontianak, Palembang, Jakarta, Bandar Lampung, and Palu. The analysis was carried out on a four-story reinforced concrete with shear walls using the SAP 2000 program to obtain the response and performance of the building structure. The results of the structural response showed the value of the floor lateral deviation from the largest to the smallest, starting from Palu, Bandar Lampung, Jakarta, Palembang, and Pontianak. Pulu has the largest floor lateral deviation values of 23.745 mm and 23.690 mm for the X and Y directions, while Pontianak has the smallest floor lateral deviation values of 7.571 mm and 7.439 mm for the X and Y directions. Based on the pushover analysis, the structure has a performance level of B for Palu areas and IO for other areas.

Analysis of the Strength of Timber and Glulam Timber Beams with Steel Reinforcement Arie Putra Usman; Saptahari Sugiri
Journal of Engineering and Technological Sciences Vol. 47 No. 6 (2015)
Publisher : Institute for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2015.47.6.1

Indonesia is a tropical country with abundant tropical timber that can be used as a building material. Wood is a renewable material, thus making it an environmentally friendly construction material. However, the dimensional limitations of solid wood may pose problems in structural constructions. Wood material also has some disadvantages, such as brittle failure. However, the ductility of wood can be increased because of plasticity occurring in the compression zone. Wood material with good ductility can be obtained by reinforcing it in the tensile zone. This study is about the strength of wood material for use as a material for structural elements. Based on the analytical findings, the bending capacity of wood can be improved by adding reinforcements to the tensile zone.

Potential of Reinforced Indonesian Glulam Beams Using Grade I (Bengkirai), Grade II (Kamper), Grade III (Nyatoh) Woods for Use in Structural Wood Design Saptahari Sugiri; Eka Mulya Alamsyah; Arie Putra Usman
Journal of Engineering and Technological Sciences Vol. 48 No. 2 (2016)
Publisher : Institute for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2016.48.2.2

Wood is a natural resource that is renewable and available in various species in tropical countries. Its abundancy in nature makes it easy to obtain, thus making it a nature friendly material for use in construction. Indonesia is the most important source of tropical wood in the world after Brazil, making the use of wood for structural elements very desirable. It is estimated that 4000 different varieties of wood exist in Indonesia. This estimate is based on the herbarium species collected by the Forestry Research Institute, currently counting nearly 4000 types of trees with a diameter of more than 40 cm. In the Indonesian wood structure code, the strength of woods is divided into 3 grades (grade I, II and III). This paper presents an evaluation of the mechanical properties of glulam wood sourced from native Indonesian timber: Bengkirai wood (grade I), Kamper wood (grade II), and Nyatoh wood (grade III), thus proving the potential for Indonesian wood as industrial structural elements in wooden constructions.

IDENTIFIKASI SISTEM PENGELOLAAN SAMPAH KAWASAN JAKABARING SPORT CITY KOTA PALEMBANG Ananda, Dwi Aisyah; Muhammad Aminuddin, Kiagus; Usman, Arie Putra
LATERAL: Jurnal Teknik Sipil Vol 2 No 2 (2024): Jurnal Teknik Sipil LATERAL
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Tridinanti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52333/lateral.v2i2.762

Palembang City is a metropolitan city with a population of more than 1.5 million, as a result of this, there is a regional expansion, namely in the Jakabaring area where in this area there is Jakabaring Sport City. Jakabaring Sport City is an area that has sports facilities, namely stadiums and other supporting facilities so that it can attract local people to visit if there is a certain event or event. As a result of these results, it can increase waste generation. This study aims to identify the waste management system in the Jakabaring Sport City area of Palembang City. The method used is a survey and observation, namely by measuring the composition of waste. The results of the study showed that the waste collection scheme uses a collection container which will then be transported to a temporary TPS. The results of measuring the composition of waste in this area show that based on the results of the survey on weekdays, namely Monday and Thursday, the largest waste composition was obtained, namely food waste of 36% to 42%, garden waste of 14% to 23% and plastic waste of 17% to 31%. The results of measuring the composition of waste on holidays, namely Sundays, obtained food waste of 36%, plastic waste of 26% and garden/park waste of 14%.

Effect of the Nano-Silica Addition on the Mechanical Properties of Polymer Concrete Septriansyah, Verinazul; Saloma; Nurjannah, Siti Aisyah; Saggaff, Anis; Usman, Arie Putra; Ngian, Shek Poi
Science and Technology Indonesia Vol. 10 No. 1 (2025): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.1.9-17

The latest advances in science and technology have positioned nanomaterials at the vanguard of contemporary research. Nano silica (SiO2) is an illustrative example of a nanomaterial extensively utilized in concrete manufacturing due to its properties as a pozzolan. The objective of this study is to elucidate the characteristics of nano silica and its effect on the performance of polymer concrete through experimental methods. X-ray diffraction (XRD) tests indicate that nano silica exhibits a high amorphous phase. Consequently, nano silica enhances the C-S-H gel formation reaction, producing more robust and denser specimens. The maximum compressive strength reached 45.23 MPa when adding 0.4% nano-silica with a specific gravity of 1573.33 kg/m3. For comparison, concrete without nano silica had a maximum compressive strength of 40.05 MPa with a particular gravity of 1610.67 kg/m3. Observation using a scanning electron microscope (SEM) showed that the nano-silica mixture exhibited excellent particle distribution as an activating agent that could enhance the strength of the specimens. Nevertheless, the observed reduction in compressive strength might be affected by several factors, including particle clusters and the presence of compounds carried by the fine aggregates that influence the mechanical properties of polymer concrete. Integrating nano-silica is pivotal in enhancing the compressive strength and reducing the specific gravity of polymer concrete specimens. The increased strength and decreased specific gravity render nano silica a promising additive for polymer concrete applications.

Rigid Pavement Engineering of Lake-Musi Rawas Intersection Road Based on 2024 Pavement Design Manual Nopradego, Rendi; Saloma, Saloma; Usman, Arie Putra
Jurnal Ilmiah Multidisiplin Indonesia (JIM-ID) Vol. 4 No. 06 (2025): Jurnal Ilmiah Multidisplin Indonesia (JIM-ID), July 2025
Publisher : Sean Institute

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

Roads are one of the important elements to improve community economic facilities and infrastructure based on resources, as well as support regions in overcoming rural and sub-district isolation in Musi Rawas Utara Regency (Muratara). The Simpang Lake - Musi Rawas Boundary Road Section is one of the main connecting sections for the community to go to the plantation location and is a priority area in the plantation area. Considering that this section is a priority road section, planning is needed on the Simpang Lake – Musi Rawas Boundary road section using the 2024 Pavement Design Manual. The planned age of the Simpang Lake - Musi Rawas Boundary road section is 20 years with a CBR value of 7.85% JSKN plan of 64,295.49 units, the length of the road tested is 4,800 km. The results obtained are the design of concrete design with a low traffic category with a concrete slab thickness of 200 mm, a thin concrete thickness of 100 mm, an aggregate foundation layer with a thickness of 150 mm and has a Tie Bar with a transverse joint distance of 4.00 m.

Analisa Penilaian Kondisi Jalan pada Ruas Jalan di Kecamatan Rawas Ulu Kabupaten Musi Rawas Utara dengan Metode Surface Distress Indeks (Sdi) Abdurroqib, Abdurroqib; Saloma, Saloma; Usman, Arie Putra
Riwayat: Educational Journal of History and Humanities Vol 8, No 3 (2025): July, Social Studies, Educational Research and Humanities Research.
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jr.v8i3.47664

Pertumbuhan ekonomi dan pembangunan suatu wilayah sangat bergantung pada sarana dan prasarana transportasi. Adanya sistem transportasi yang tertata dengan baik dan saling terhubung pada suatu wilayah akan mendorong terbentuknya interaksi yang berkelanjutan antar pengguna sarana transportasi. Dalam rangka memenuhi kebutuhan sarana dan prasarana transportasi, maka diambil kebijakan untuk mengembangkan prasarana jalan. Salah satu kebijakan pengembangan prasarana jalan adalah data kondisi jalan di Kabupaten Musi Rawas Utara. Pemutakhiran data kondisi jalan kabupaten di Kabupaten Rawas Ulu menggunakan Metode Surface Distress Index (SDI) dan dengan mengurutkan kondisi stabil ruas jalan di Kecamatan Rawas Ulu Kabupaten Musi Rawas Utara. Hasil survei jalan kabupaten di Kabupaten Rawas Ulu tahun 2024 dalam kondisi baik sepanjang 5,70 km atau 10,878%, kondisi sedang sepanjang 30,00 km atau 57,252%, kondisi rusak ringan sepanjang 2,10 km atau 4,008% dan rusak berat sepanjang 14,60 km atau 27,862% dengan kondisi stabilitas jalan sebesar 68,130% dan kondisi tidak stabil sebesar 31,870%.

Analisis Manajemen Konstruksi Pada Pekerjaan Peningkatan Jalan Tanah Abang – Purun Aminuddin, Kiagus Muhammad; Usman, Arie Putra; susastro, yabong
Jurnal Deformasi Vol. 10 No. 1 (2025): JURNAL DEFORMASI
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/4bpecp51

Manajemen adalah ilmu pengetahuan tentang seni memimpin organisasi yang terdiri dari kegiatan perencanaan, pengorganisasian, pelaksanaan dan pengendalian terhadap sumber-sumber daya yang terbatas dalam usaha mencapai tujuan dan sasaran yang efektif dan efisien. Proyek adalah gabungan dari sumber-sumber daya seperti manusia, material, peralatan, dan biaya yang dihimpun dalam suatu wadah organisasi sementara untuk mencapai sasaran dan tujuan. Tujuan dari penelitian ini adalah untuk mengetahui manajemen kontruksi pekerjaan peningkatan jalan Tanah Abang -Purun. Penelitian ini merupakan penelitian kualitatif yang bersifat deskriptif dengan kecenderungan menggunakan analisis. Penelitian ini menggunakan data sekunder Dinas Pekerjaan Umum dan Tata Ruang Kab.PALI dengan cara menganalisis dokumen dan observasi langsung ke objek penelitian yaitu proses proyek Peningkatan Jalan Tanah Abang – Purun. Pekerjaan Peningkatan jalan merupakan faktor penting untuk mendukung mobilitas masyarakat dan pertumbuhan ekonomi di wilayah perdesaan. Pelaksanaan Peningkatan Jalan Tanah Abang – Purun berupa pengaspalan jalan dengan panjang 3,4 KM dan durasi 60 hari. Rencana anggaran biaya Peningkatan jalan Tanah Abang – Purun sepanjang 3,4 KM adalah sebesar Rp. 5.750.789.000,-. Hasil yang didapatkan pada penelitian ini yaitu tidak tercapainya target pengerjaan selama 60 hari saat dilapangan. Waktu yang diperlukan ialah 76 hari.

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