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All Journal Fondasi: Jurnal Teknik Sipil JITTER (Jurnal Ilmiah Teknologi Informasi Terapan) ABDIMAS SILIWANGI Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Portal: Jurnal Teknik Sipil Prokons: Jurnal Teknik Sipil Construction and Material Journal Journal of Applied Civil Engineering and Infrastructure Technology (JACEIT) Media Komunikasi Dunia Ilmu Sipil (MoDuluS) JURNAL POLI-TEKNOLOGI International Journal of Architecture and Urbanism
Andi Indianto
Poilteknik Negeri Jakarta
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation

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EVALUASI STRUKTUR PIER HEAD YANG MENGALAMI PERUBAHAN BENTANG Salsabilla, Nazya Tiara; Indianto, Andi; Yanuarini, Erlina
Construction and Material Journal Vol. 7 No. 1 (2025): Construction and Material Journal Vol. 7 No. 1 Mei 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i1.4767

Abstract

Cracking was observed on pier head P85-84 S of the JORR W1 Kebon Jeruk toll road, caused by an increase in span length and loading conditions that exceeded the original design specifications. This resulted in bending moments greater than those accounted for in the initial design, prompting the need for a structural capacity evaluation of the pier head. This study aims to assess whether pier head P85-84 S remains capable of withstanding the applied loads. The evaluation was conducted by analyzing the required reinforcement area, cross-sectional dimensions, and nominal moment capacity in comparison to the ultimate moment, using SAP2000 software. The analysis revealed that the pier head's capacity is inadequate. Under standard loading conditions, deficiencies of 1D19 and 5D19 were found in the bottom support and mid-span reinforcement, respectively. Under actual loading conditions, the reinforcement deficiencies increased to 2D19 at the bottom support and 8D19 at mid-span. Additionally, the comparison between the nominal and ultimate moment showed that the ultimate moment caused by the applied loads reached 71.12 ton·m, while the nominal moment was only 44.01 ton·m. These findings indicate that the current structure is insufficient to resist the existing loads. Therefore, structural strengthening is required, which may include the use of Fiber Reinforced Polymer (FRP), steel plate bonding, or external prestressing.
Experimental Study of Joint Tool Variations in Cold Rolled Steel Structure Connection Systems C75 – 0,65 mm Kuncoro, Hendrian Budi Bagus; Indianto, Andi; Putri, Mukhlisya Dewi Ratna
Jurnal Fondasi Vol 13, No 2 (2024)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v13i2.32674

Abstract

C75 cold rolled steel is a material used in building construction with a lighter weight compared to conventional steel. One important aspect in the design of C75 light steel is the connection, where the connection must be designed safely so it is very important to maintain the structural integrity of the building and ensure the safety of building users. The aim of the research is to obtain the correct formulation for the C75 mild steel connection type in relation to the thickness of the C75 cold rolled steel. The method used is to create a connection system in the form of a variety of connections consisting of connections using screws only, combined screws and bolts, and connections using rivet nails. Overall, from the test results, it was found that the use of mild steel connections with a modified model between screws and bolts produced a greater value compared to using rivet connection tools alone or screws alone, this happened the same for every thickness of mild steel tested, both thickness 0, 65 mm, 0.75 mm or 1.00 mm. The greatest results were found in the connection of 4 screws and 1 bolt at a mild steel thickness of 1.00 to 100.00 N with a deflection of 2.58 mm. When compared with rivets, the increase reached 42.50%, while compared with screws, there was an increase of 20.00%. So rivet connections are brittle compared to screws and screw and bolt connections are a more ductile connection, so they can be recommended as connections in light steel. It's just that mild steel which has a greater thickness tends not to cause buckling compared to mild steel which is much thinner, where buckling is likely to occur in the mild steel material.
Evaluation of Pile Slab Capacity with Changed Length Indianto, Andi; Putra, Muhammad Andika Pratama; Yanuarini, Erlina; Sofyan, Rikki; Sukarman
International Journal of Architecture and Urbanism Vol. 10 No. 1 (2026): International Journal of Architecture and Urbanism
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/ijau.v10i1.24943

Abstract

One of the bridges on the Serpong-Balaraja Toll Road Section 1a project with the longest span is the Cisadane Bridge, which will use a PCI Girder superstructure with a length of 50.8 meters. A bridge approach road structure using a piling slab is located at Sta 2+500-2+564. The piles on the pile slab are planned with a free standing of 6 meters above ground level, and they are 60 cm in diameter, with 11–12 poles forming each segment. When measurements were taken, the length of the pile slab differed from shop drawings. In order to determine whether the pile slab can still support the working load after a change in length and to allow strengthening if the pile slab installed in the field is weak, it is important to assess the structure's performance. By examining the capacity of the reinforcement on the capping beam and the capacity of the spun pile. The evaluation is carried out using analytic software SAP2000. The results of the study for changes in the length of the pile slab structure show that the structure is still adequate because the capacity of the reinforcement on the capping beam installed in the field, namely D19-150, is still sufficient when compared to the results of the analysis, namely D19-153.38. In addition, the spun pile is still adequate because the moment that occurs is still below the permissible moment in the spun pile, which is less than 17 tons.
PENGGUNAAN REINFORCED CONCRETE SLABS UNTUK MENGURANGI PENURUNAN SESAAT PONDASI TIANG PANCANG PADA TANAH TIDAK KERAS Rikki Sofyan Rizal; Sanju Yedo Oksa; Andi Indianto; Sukarman; Erlina Yanuarini
Jurnal Ilmiah Teknologi Infomasi Terapan Vol. 10 No. 3 (2024)
Publisher : Universitas Widyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33197/jitter.vol10.iss3.2024.2194

Abstract

Kejadian penurunan sesaat pada pilar-pilar struktur jembatan tipe pelat tiang, pada saat kendaraan melintasi jembatan, merupakan pengaruh dari pondasi pegas. Efek ini umumnya terjadi karena pondasi tidak berada pada tanah yang keras. Penurunan sesaat tersebut menyebabkan pelebaran momen di ujung dermaga sehingga mengakibatkan peristiwa retak struktur, seperti yang terjadi pada salah satu ruas tol di Kebon Jeruk, Jakarta Barat. Pilar struktur jembatan type pile slab yang pondasinya berada pada tanah yang tidak keras akan mengakibatkan pilar tersebut mengalami pergerakan vertikal. Pergerakan pada pilar dapat menyebabkan keretakan pada struktur pier head, selanjutnya pergerakan pada pier head juga dapat menyebabakan kerusakan pada lantai. Dalam penelitian ini dilakukan evaluasi terhadap perkuatan dengan tujuan mengetahui kinerja perkuatan pada pondasi. Salah satu cara untuk mengatasi penurunan sesaat pada pondasi yang berfungsi sebagai pilar adalah dengan mengurangi penurunan sementara dengan cara mendistribusikan beban pada tanah di sekitar pondasi dengan menggunakan pelat beton bertulang. Hasil analisis teoritis, penanganan menggunakan pelat bertulang dengan luas 2,5 x 2,5 meter, dengan pemasangan sedalam 0,5 meter dari permukaan tanah, mampu meredam pergerakan vertikal sebesar 73,68% (penurunan sebelum perkuatan sebesar 0,76 mm, dan setelah perkuatan sebesar 0,20 mm). Sedangkan dari hasil uji lapangan dengan penanganan seperti diatas mampu menurunkan penurunan sesaat sebesar 68,75%. (penurunan sebelum perkuatan sebesar 0,80 mm, dan setelah perkuatan sebesar 0,25 mm)
Co-Authors Albert Hendrik Benaya Aprilia Rossa Ariesta Asep Hilmansyah Fachri Pangestu Fianda Harsa Hendrian Budi Bagus Kuncoro Hendrian Budi Bagus Kuncoro Iwan Supriyadi Miftah Hadibrata M. Mohammad, Adi Mukhlisya Dewi Ratna Putri Putra, Muhammad Andika Pratama Rizal, Rikki Sofyan Rizal, Shafaa Yosvi Rahmathullah Rosyada, Ananda Sabiila Ryan Anggriawan Ryan Anggriawan Salsabilla, Nazya Tiara Sanju Yedo Oksa Setiyadi Setiyadi Setiyadi Setiyadi Sofyan, Rikki Sukarman Sukarman Sukarman Tri Wulan Sari Yanuarini, Erlina