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All Journal JMTS: Jurnal Mitra Teknik Sipil
Hendy Wijaya
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Civil Engineering, Building, Construction & Architecture

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ANALISIS RIWAYAT WAKTU FONDASI TIANG TUNGGAL DAN KELOMPOK DI TANAH LUNAK Albert Gandarasa; Hendy Wijaya; Amelia Yuwono
JMTS: Jurnal Mitra Teknik Sipil Volume 5, Nomor 2, Mei 2022
Publisher : Prodi Sarjana Teknik Sipil, FT, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmts.v5i2.16666

Abstract

Indonesian territory has high earthquake possibility because it lays on two seismic gaps. Earthquake can cause a great damage for mankind, in example deaths and infrastructure damage. Therefore, interventions are needed to prevent the damages by analyzing the effect of earthquake towards the foundation stability. The most common analysis method is time history analysis. Time history analysis is a step by step method to find out the respond that given by a structure by simulating an earthquake record to the structure model. This method needs a ground motion from an accelerogram. Spectral response is also needed from the area where the infrastructure will be built. This journal will analyze the time history on the single pile and group pile. This journal will used geotechnical-based programme which is Midas GTS NX that will resulting the displacement and the internal force caused by the seismic load. This journal is expected in assist the planning of a building by calculating the earthquake effects and minimalizing the possibility of pile foundation failure. Wilayah Indonesia memiliki potensi gempa yang cukup besar karena dilewati oleh dua jalur seismik. Gempa bumi dapat mengakibatkan kerugian yang besar bagi umat manusia, seperti korban jiwa dan kerusakan infrastruktur. Maka dari itu, dibutuhkan langkah-langkah untuk mencegah hal tersebut dengan menganalisis efek gempa terhadap kestabilan fondasi. Salah satu analisis yang biasa digunakan adalah analisis riwayat waktu. Analisis riwayat waktu adalah suatu metode langkah demi langkah untuk mengetahui respons yang diberikan suatu struktur dengan cara pemberian rekaman gempa terhadap model struktur tersebut. Metode ini membutuhkan rekaman gerak tanah dari sebuah akselerogram. Diperlukan juga respon spektra dari daerah tempat dimana infrastruktur tersebut akan dibangun. Pada jurnal ini akan dilakukan analisis riwayat waktu pada tiang tunggal dan tiang kelompok. Jurnal ini menggunakan program Midas GTS NX yang berbasis geoteknik yang akan menghasilkan nilai perpindahan dan gaya dalam akibat beban gempa. Jurnal ini diharapkan dapat membantu dalam merencanakan sebuah bangunan dengan memperhitungkan pengaruh beban gempa dan meminimalisir kemungkinan terjadinya kegagalan fondasi tiang.
EFEK MODEL TANAH DENGAN BOUNDARY ELASTIC TERHADAP KAPASITAS LATERAL TIANG Leon Yulio; Hendy Wijaya; Amelia Yuwono
JMTS: Jurnal Mitra Teknik Sipil Volume 3, Nomor 3, Agustus 2020
Publisher : Prodi Sarjana Teknik Sipil, FT, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmts.v3i3.8596

Abstract

Foundation is the most important part in building construction. Foundation has ability to hold axial force and lateral force. Foundation could be used for any kind of soil, for example like sandy soil and soft soil, etc. One kind of foundation that easy to use in practice is driven pile. Each foundation has its own strength to withstand load that occurs on surrounding soil.  To be able to determine the capacity of the pile on the surrounding soil it is necessary to design a pile in accordance with the design requirements of SNI 8460:2017. The capacity of driven pile is really determined by lateral shear that works on surrounding soil. By giving boundary elastic around sandy soil, can be evaluated how much model of sand soil that should be modeled and determine its effect on the soil and pile. To be able to know that, it is necessary to analyze the numerical model using PLAXIS 3D program. The result obtained by giving a boundary elastic around sandy soil affect the behavior of the soil and piles analysed. Fondasi adalah bagian terpenting dalam konstruksi sebuah bangunan. Fondasi memiliki kemampuan untuk menahan beban gaya aksial dan gaya lateral. Fondasi dapat digunakan dalam berbagai jenis tanah, seperti tanah pasir, tanah lunak, dll. Salah satu jenis fondasi yang mudah untuk digunakan dalam pelaksanaannya adalah tiang pancang. Setiap fondasi memiliki kekuatan masing-masing untuk menahan beban yang terjadi pada tanah disekitarnya. Untuk dapat mengetahui kapasitas tiang pada tanah disekitarnya perlu dilakukan perancangan tiang pancang yang sesuai dengan persyaratan desain SNI 8460:2017. Kapasitas fondasi tiang pancang sangat dipengaruhi dari tegangan lateral yang bekerja pada tanah disekitarnya. Dengan memberikan boundary elastic disekitar tanah pasir dapat dievaluasi seberapa besar model tanah pasir yang harus dimodelkan serta mengetahui pengaruhnya terhadap tanah dan tiang. Untuk dapat mengetahui hal tersebut maka perlu dianalisis dengan model numerik menggunakan program PLAXIS 3D. Hasil yang diperoleh dengan memberikan boundary elastic di sekitar tanah pasir mempengaruhi perilaku tanah dan tiang pancang yang dianalisis.
ANALISIS PERFORMANCE LEVEL SENDI PLASTIS LOKAL PADA FONDASI TIANG TUNGGAL DAN TIANG KELOMPOK Willy Ericson; Hendy Wijaya; Amelia Yuwono
JMTS: Jurnal Mitra Teknik Sipil Volume 3, Nomor 3, Agustus 2020
Publisher : Prodi Sarjana Teknik Sipil, FT, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmts.v3i3.8825

Abstract

Foundation is part of the structure that was build first and the most important part to guarantee the establishment of a building. The foundation function in general are to carry and distribute building loads into the ground. The loads channeled into the ground in the form of axial loads and lateral loads. Generally for high buildings used in the form of foundation piles or bored piles. To find out the design capabilities of a building in maintaining its robustness, naturally some analysis of the lower and upper structures needed. Especially in the lower structure, which is the foundation of a single pile or a group of piles, one of which can be done is a pushover analysis of the pile. By conducting pushover analysis on a pile foundation, the level of performance of the single pile foundation and group pile can be determined. From the results of pole pushover analysis will be obtain including the maximum deflection value and the melting value of pole. From the two data, it can be seen the value of the ductility of various types of pile foundation materials used. In this case, this journal will calculate the ductility and overstrength of a single pile foundation and group pile with variation dimensions.
Co-Authors Albert Gandarasa Leon Yulio Willy Ericson