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All Journal Jurnal Teknik Sipil dan Perencanaan Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Teknik Sipil Aceh International Journal of Science and Technology Jurnal Inovasi Konstruksi
Kusbiantoro, Arief
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Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Health Professions Public Health Transportation

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Structural Health Monitoring by Identification Dynamic Properties and Load Rating Factor at Multi-span Prestressed Concrete Girder Bridge Kusumawardani*, Rini; Kusbiantoro, Arief; Nugroho, Untoro; Upomo, Togani Cahyadi; Novita, Erlia Dewi; Nugroho, Imam Agus; Azizah, Kirana Prasetya
Aceh International Journal of Science and Technology Vol 12, No 3 (2023): December 2023
Publisher : Graduate School of Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/aijst.12.3.34451

Abstract

It is crucial to perform routine bridge maintenance in order to evaluate the structure's current state. As a result, it is possible to guarantee that the bridge structure can offer services that are both comfortable and secure. The bridge structure being able to reach the service life as planned is another goal that can be accomplished. Visual inspection or the use of some currently popular sensors can be used to monitor the condition of the bridge. The dynamic properties of a structure including modal frequency and mode shape will be used to determine the structure's present and potential future conditions. Using a velocitymeter, vibration data collection is conducted as the first step. The next step is analyzing data to determine natural frequency. The fundamental frequency of the Tugu Suharto bridge structure in Semarang was determined to be 3.995 Hz. Future bridge structure condition monitoring can be done using frequency data and finite element model. The condition of bridge infrastructure in the future for one city is an important thing that must be considered. Some bridges are classified as structurally deficient, and many bridges are nearing the end of their design lives. The next generation of Semarang highway bridges is currently being designed and built, but existing bridges still need to be maintained through proper inspection and load rating. In order to incorporate structural modeling, instrumentation, and nondestructive testing into the design, construction, and management of bridges, this study proposes an objective load rating protocol. Using information gathered from structural health monitoring (SHM), a baseline structural model is developed and verified. The load rating factors of the bridge are then determined using the structural model under both real-condition and simulated damaged conditions.
RESPON STRUKTUR BETON GEDUNG APARTEMEN DAN PERKANTORAN 20 LANTAI AKIBAT BEBAN GEMPA DENGAN MENGGUNAKAN METODE RESPON SPEKTRUM Kusbiantoro, Arief; Kusumawardani, Rini; Nugroho, Untoro; Sutarto, Agung; Dzikri, Muhammad Aidhil; Nugraha, Moh Ari Restian; Yus, Rakha Alfarizhi; Indonesia, Bisma Garda; Furqon, Septindra Hafizh Al; Firdaus, Nisqiyah; Khanza, Mirara
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol. 29 No. 1 (2024): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v29i1.5837

Abstract

A 20-story building located in Bandung, with a height of 70.5 m, functions as both an office building and an apartment complex. As a high-rise structure, seismic analysis of the building is required to determine the seismic pattern using the response spectrum method. The response spectrum method is used to compare V-static with Vdynamic based on SNI 1726-2019, and to determine the structural performance of the 20-story building frame. The results obtained for each frame using a combination of cases (static + seismic) show that, for displacement review, the highest shift occurs on the 20th floor at 1003.27 mm, and the highest drift value is on the 9th floor at 125.92 mm. The internal forces on the sample column show the highest results on the 5th-floor column C1 with 1.07x105 kN for Fx, 1.95x103 kN for Fy, and a moment of 5.44x103 kN-m, through the combination (static + seismic). Meanwhile, for the reviewed beam forces, the highest values are found on beam B53 on the 6th floor with an Fx value of 80.23 kN, Fy of 3140.53 kN, and the largest moment on the 15th-floor beam B53 of 793.46 kN-m.
PENILAIAN LIKUIFAKSI DENGAN PENGUJIAN TRIAKSIAL TERKONSOLIDASI-TAK TERDRAINASE Upomo, Togani Cahyadi; Kusumawardani, Rini; Nugroho, Untoro; Kusbiantoro, Arief; Firdaus, Muh Arief; Syahputra, Muhammad Farhan
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol. 29 No. 1 (2024): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v29i1.5663

Abstract

This study discusses the assessment of liquefaction by triaxial consolidated undrained (CU) testing. The soil sample employs Rembang silica sand with a grain size distribution that lies within the zone of liquefaction. In the test, Liquefaction develops in sand when the ratio of the change in pore water pressure to its confining stress (Ru) turns approximately 1 and the deviator stress drops to approximately zero. According to the findings, loose to medium-dense sand experience liquefaction when the applied confining stress is low (<100 kPa). In sandy soils, limited liquefaction occurs at confining pressures of 200 − 400 kPa with the range of relative densities around 34.41% − 47.78%. Critical state line develops from Triaxial CU testing to predict the undrained and drained behavior of sand.
Assessment of Frequency on Railway Sleeper by Field Measurements and Static Analysis Kusumawardani, Rini; Kusbiantoro, Arief; Ermansyah, Naufal Maulana; Andiyarto, Hanggoro Tri Cahyo
Jurnal Teknik Sipil dan Perencanaan Vol 24, No 2 (2022)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v24i2.43253

Abstract

The train is a mode of mass transportation that is fast, efficient, and relatively affordable. To support the high demand for this mode of transportation, adequate infrastructure is also needed. The condition of this infrastructure must always be monitored so that the level of security and safety of rail transportation modes can always be in optimal conditions. One important component that requires regular attention and maintenance is the railway sleepers. In this paper, a finite element (FE) model was made of railway sleepers using ANSYS software. From the analysis on the FE model, it can be explored that the deformation and stress that occurs in the railway due to loading. In this study, vibration tests were also carried out on railway based on several types of passing trains. It aims to determine the frequency value based on the type of passing train. This research is the initial stage of a series of studies on structural health monitoring procedures on railroads.
Performa Penggunaan Rubber Isolator pada Jembatan Girder Beton Kusbiantoro, Arief; Kusumawardani, Rini; Nugroho, Untoro; Hanif, Naufal; Azizah, Kirana Prasetya
Jurnal Inovasi Konstruksi Vol 2, No 1 (2023): April
Publisher : Politeknik Pekerjaan Umum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56911/jik.v2i1.82

Abstract

Jembatan sebagai salah satu infrastuktur penting yang merupakan penghubung antar wilayah sebagai penunjang mobilitas. Untuk memastikan keamanan, evaluasi akurat dari jembatan dibutuhkan. Diantara metode yang ada, diperlukan model elemen yang mencerminkan kondisi jembatan yang ada. alam perencanaan dan perancangan jembatan sebaiknya mempertimbangkan fungsi kebutuhan transportasi, persyaratan teknis, dan estetika arsitektural yang meliputi aspek lalu lintas, aspek teknis, dan aspek estetika. Jenis rubber isolator yang dikaji dalam studi ini adalah elastomer bearing. Analysis evaluasi kinerja jembatan menggunakan metode elemen hingga tiga dimensi untuk mendapatkan hasil analisis momen ultimit, displacement, dan deformation. Hasil analisis menunjukkan bahwa nilai momen ultimit pada gelagar tanpa tendon sebesar 2,191 x 105 kN.m, deformation dan untuk gelagar dengan tendon sebesar 3,783 x 105 kN.m. deformation pada elastomer bearing maksimal pada arah horizontal arah X dengan nilai -1,11 x 10-7 meter, nilai horizontal arah Y dengan nilai 8,49 x 10-14 meter, dan untuk nilai vertikal Z adalah -3,87 x 10-10 meter.
Behavior of Concrete Structures of 5-storey Shopping and Residence Buildings due to Earthquakes using Spectrum Response Analysis Kusbiantoro, Arief; Kusumawardani, Rini; Taveriyanto, Arie; Agung Hermawan, Indra; Danuaji Syahdani, Raka; Jati Priantoro, Wisnu; Restu Bachtiar, M. Vicky; Ageng, Sultan; Rizaldi Fadillah, Akhmad; Rio Pratama, Anggy
Jurnal Teknik Sipil Vol. 17 No. 1 (2024): Juni 2024
Publisher : Faculty Of Engineering University 17 August 1945 Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56444/jts.v17i1.1887

Abstract

The 5-storey building with 20 meters high and is located in Jakarta, a building that functions as a shop and residence. As a high-rise building, earthquake analysis of the building is required to determine the seismic pattern using the response spectrum method. The spectrum response method is used to determine the structural performance and compare static analysis and dynamic analysis based on SNI 1726-2019. Then the results obtained for each frame use a combination of cases (static + seismic), for displacement review, there is the highest drift on the 5th floor of 37.04 mm, and the highest drift value on the 5th floor of 4.57x10-3 mm. The internal force in the sample column obtained the same results in story 1 column C1 and C2 of 59.57 kN at Fx, Fy of 4.72 kN and moment of 5.01 kN-m, through a combination (static + seismic). The value of the sample beam on the 3rd floor has the highest value on B1, the Fx value was 4.73x10-14 kN, Fy was 9.09 kN, and the moment was 13.88 kN-m.
SOSIALISASI PENINGKATAN KUALITAS BIJI KOPI PADA DESA MEDONO KECAMATAN BOJA KABUPATEN SEMARANG Upomo, Togani Cahyadi; Nugroho, Untoro; Kusbiantoro, Arief; Kusumawardani, Rini; Subiantara, Muhammad Ilham; Kharisma, Anindya Batari; Amelia, Naswa Badi
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 5 (2024): Vol. 5 No. 5 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i5.35325

Abstract

Desa Medono terletak di kabupaten Kendal, provinsi Jawa Tengah. Umumnya, mayoritas penduduk Desa Medono bekerja di kebun dan menanam lahannya dengan tanaman kopi. Sayangnya, masyarakat Desa Medono memiliki pengetahuan yang terbatas terkait dengan penanaman, pengolahan dan pemasaran biji kopi. Hal tersebut mengakibatkan kopi di Desa Medono kurang berkembang dibanding dengan di daerah lainnya seperti Temanggung. Teknik sipil UNNES berkolaborasi dengan aktivis kopi melakukan penyuluhan dan bimbingan dalam penanaman, pengolahan maupun pemasaran biji kopi dengan harapan dapat meningkatkan kualitas dan harga jual biji kopi produk Desa Medono sehingga pendapatan masyarakat Desa Medono semakin meningkat. Selama kegiatan, masyarakat petani kopi di Desa Medono cukup antusias dan aktif berdiskusi dengan tim Teknik Sipil UNNES dan aktivis kopi
Co-Authors AA Sudharmawan, AA Ageng, Sultan Agung Hermawan, Indra Agung Sutarto Amelia, Naswa Badi Arie Taveriyanto, Arie Azizah, Kirana Prasetya Danuaji Syahdani, Raka Dzikri, Muhammad Aidhil Ermansyah, Naufal Maulana Firdaus, Muh Arief Firdaus, Nisqiyah Furqon, Septindra Hafizh Al Hanggoro Tri Cahyo Andiyarto, Hanggoro Tri Cahyo Hanif, Naufal Indonesia, Bisma Garda Jati Priantoro, Wisnu Kharisma, Anindya Batari Kusumawardani*, Rini Novita, Erlia Dewi Nugraha, Moh Ari Restian Nugroho, Imam Agus Restu Bachtiar, M. Vicky Rini Kusumawardani, Rini Rio Pratama, Anggy Rizaldi Fadillah, Akhmad Subiantara, Muhammad Ilham Syahputra, Muhammad Farhan Togani Cahyadi Upomo, Togani Cahyadi Untoro Nugroho Yus, Rakha Alfarizhi