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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Teknik Sipil Info-Teknik Civil Engineering Dimension Media Ilmiah Teknik Sipil Borneo Engineering: Jurnal Teknik Sipil Jurnal Kacapuri : Jurnal Keilmuan Teknik Sipil Buletin Profesi Insinyur Jurnal Teknologi Berkelanjutan Jurnal Pengabdian Pada Masyarakat Indonesia (JPPMI) Jurnal Rekayasa Konstruksi
Darmansyah Tjitradi
Program Studi Pendidikan Profesi Insinyur
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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Visualisasi Dan Identifikasi Pola Retak Dinding Bata Akibat Penurunan Pondasi Struktur Bangunan Di Kota Banjarmasin Tjitradi, Darmansyah; Eliatun, Eliatun
Jurnal Teknik Sipil Vol 2 No 1 (2018): Jurnal Gradasi Teknik Sipil - Juni 2018
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2696.587 KB) | DOI: 10.31961/gradasi.v2i1.575

Abstract

The City of Banjarmasin has very low soil bearing capacity leading to a significant number of buildings experiencing foundation settlement. This causes many elements of the buildings to develop cracks and to lean. The foundation settlement is modelled using ANSYS by taking five building structure models with brick walls loaded with their selves weight. Through this modelling the crack pattern and the stress distribution on both walls and the structural elements can be visualised and identified. The results show that the following columns experiencing foundation settlement develop longitudinal cracks, crack patterns on brick walls are diagonal at every bottom corner of the columns and vertical at the edge of the inner columns if there is no foundation settlement. Crack patterns on brick walls take form of a letter V if only one or two outer column experience foundation settlement, and crack patterns on brick walls also take form of an inverted letter V if only the inner columns or two adjacent columns experience foundation settlement. Foundation settlement experienced by inner columns of a brick wall is a major cause of damage to structural components.
Pengembangan Perumahan Dengan Desain Konstruksi Dilahan Basah Pada Wilayah Kota Banjarmasin Menggunakan Riset Operasi Eliatun, Eliatun; Tjitradi, Darmansyah
Jurnal Teknik Sipil Vol 2 No 1 (2018): Jurnal Gradasi Teknik Sipil - Juni 2018
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1570.138 KB) | DOI: 10.31961/gradasi.v2i1.576

Abstract

The condition of soil in Banjarmasin which is dominated by wetland with a soil bearing capacity of as low as 0.2 kg/cm2 means that buildings require costly foundations. This condition requires that developers be more selective and perform optimisation in choosing types of soft-soil foundations to ensure maximum profit from the building investment. The objective of this research is to optimise the use of a given building area by assigning different types of sub-structure subject to a number of constraints. Optimization is used by operations research methods which are solved by Integer Programming Software QM for Windows version 2.1 and is based on the development of a housing fictitious data X type-36 in Banjarmasin. The analysis result showed that the composition of the optimum number of types of houses built is for type-A 30 units, type-B 17 units, and type-C 20 units with maximum profit of Rp.4,000,000,000, the required development area is 5,360 m2 with production costs required Rp.20,000,000,000 and the construction time of all types of houses is along 67 weeks.
Pasak Kayu Kubler Sebagai Alternatif Alat Penyambung pada Konstruksi Kayu di Kalimantan Selatan Tjitradi, Darmansyah
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 13, Nomor 1, Edisi XXXI, PEBRUARI 2005
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (272.441 KB) | DOI: 10.14710/mkts.v13i1.3894

Abstract

This paper is as result of the experimental research of a Kübler wood connector on the several types of hard wood in South Kalimantan as the alternative of the connector in the timber structure. This experiment of the Kübler wood connector is done to the three types of the hard wood such as Bangkirai (Shorea Lacvifolia Endert), Simantok (Shorea spec.div) and Merbau (Intsia spec.div), and also the wood that will be connected as the tested supporting specimen is Ulin wood (Eusyderoxylon Zwageri). Every tested specimen is applied the centric compressive axial load in the straight joint, connection with an angle of 120° and connection with an angle of 90° until the connection reaches the failure strength. From the experimental result, it is obtained that on the straight joint, Merbau wood (Class II) having average and characteristic failure strength more than of its Simantok wood (Class II)  and  Bangkirai wood (Class I). For the angle connection using Simantok  wood, the value of its characteristic failure strength is getting higher if the angle of the connection more than 90o, but not for the shifting. Compare with the theoretical value, actually the characteristic failure strength value of Merbau wood is more than the permissible strength, but not for its of  Bangkirai and Simantok  wood.Keywords: Kübler wood  connector, wood connectionPermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3894[How to cite: Tjitradi, D., 2005, Pasak Kayu Kubler Sebagai Alternatif Alat Penyambung pada Konstruksi Kayu di Kalimantan Selatan, Jurnal Media Komunikasi Teknik Sipil, Volume 13, Nomor 1, pp. 27-38]
Pemodelan Penurunan Pondasi Struktur Bangunan di Tanah Lunak Kota Banjarmasin Menggunakan Ansys Darmansyah Tjitradi; Eliatun Eliatun; Oktafianus Steven Tjitradi
Borneo Engineering : Jurnal Teknik Sipil Volume 5 Nomor 2 Tahun 2021
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v5i2.1964

Abstract

The soil in Banjarmasin City is of soft clay type having a very low bearing capacity. Hence, it is normal for buildings in this area to have gelam wooden piles as part of the foundation. Foundations based on gelam wooden piles rely on friction which results in the building experiencing differential settlement, tilt, and cracks on the structural elements. This foundation settlement will be modeled using ANSYS software involving fifteen building structural models with brick walls under loads according to SNI 1727:2013 and due to settlement at the support. The modeling aims at understanding the effects of using tie beams on the pattern of structural damage in buildings that experience differential settlement on soft soil. Hasil penelitian menunjukkan bahwa penggunaan tie beam pada pondasi pada tanah lunak berpengaruh terhadap pola kerusakan. Pada tanah keras, ini tidak membawa efek seperti itu tetapi sebaliknya, itu meningkatkan tingkat ketidaktentuan statis struktur. Dalam kasus portal bentang tunggal, pola retakan menyerupai huruf "V" terbalik jika penurunan terjadi pada tumpuan samping. Di portal bentang ganda, di sisi lain, pola retakan dinding bata menyerupai huruf "V" jika penurunan terjadi pada penyangga samping, dan "V" terbalik jika terjadi di antara penyangga.
Visualisasi Dan Identifikasi Pola Retak Dinding Bata Akibat Penurunan Pondasi Struktur Bangunan Di Kota Banjarmasin Darmansyah Tjitradi; Eliatun Eliatun
Jurnal Teknik Sipil Vol 2 No 1 (2018): Jurnal Gradasi Teknik Sipil - Juni 2018
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/gradasi.v2i1.575

Abstract

The City of Banjarmasin has very low soil bearing capacity leading to a significant number of buildings experiencing foundation settlement. This causes many elements of the buildings to develop cracks and to lean. The foundation settlement is modelled using ANSYS by taking five building structure models with brick walls loaded with their selves weight. Through this modelling the crack pattern and the stress distribution on both walls and the structural elements can be visualised and identified. The results show that the following columns experiencing foundation settlement develop longitudinal cracks, crack patterns on brick walls are diagonal at every bottom corner of the columns and vertical at the edge of the inner columns if there is no foundation settlement. Crack patterns on brick walls take form of a letter V if only one or two outer column experience foundation settlement, and crack patterns on brick walls also take form of an inverted letter V if only the inner columns or two adjacent columns experience foundation settlement. Foundation settlement experienced by inner columns of a brick wall is a major cause of damage to structural components.
Pengembangan Perumahan Dengan Desain Konstruksi Dilahan Basah Pada Wilayah Kota Banjarmasin Menggunakan Riset Operasi Eliatun Eliatun; Darmansyah Tjitradi
Jurnal Teknik Sipil Vol 2 No 1 (2018): Jurnal Gradasi Teknik Sipil - Juni 2018
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/gradasi.v2i1.576

Abstract

The condition of soil in Banjarmasin which is dominated by wetland with a soil bearing capacity of as low as 0.2 kg/cm2 means that buildings require costly foundations. This condition requires that developers be more selective and perform optimisation in choosing types of soft-soil foundations to ensure maximum profit from the building investment. The objective of this research is to optimise the use of a given building area by assigning different types of sub-structure subject to a number of constraints. Optimization is used by operations research methods which are solved by Integer Programming Software QM for Windows version 2.1 and is based on the development of a housing fictitious data X type-36 in Banjarmasin. The analysis result showed that the composition of the optimum number of types of houses built is for type-A 30 units, type-B 17 units, and type-C 20 units with maximum profit of Rp.4,000,000,000, the required development area is 5,360 m2 with production costs required Rp.20,000,000,000 and the construction time of all types of houses is along 67 weeks.
Metode Pemancangan Mini Pile dengan Vibratory Pile Driver yang Dimodifikasi Hari Nugroho Akimas; Darmansyah Tjitradi
Jurnal Teknologi Berkelanjutan Vol 11 No 01 (2022): Vol 11 No 01
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtb.v11i01.210

Abstract

Infrastructure development in Banjarmasin is growing rapidly, this can be seen by the number of construction projects for shop houses, warehouses, housing and other civil buildings, both by government institutions, private sector and individuals. The type of soil in Banjarmasin is soft soil which has a very low bearing capacity, so generally the building foundation uses gelam wood. But now gelam wood is getting rare and expensive. To answer the scarcity of gelam wood, the mini pile concrete foundation could become an alternative solution. Mini pile erection using a modified Vibratory Pile Driver is an option for construction service providers with several advantages by minimizing some of the existing weaknesses. The advantages of this system are mainly in terms of cost, mobilization and adjustment of field conditions and are technically superior and safe in terms of the stability of the shop house foundation structure.
PERHITUNGAN KAPASITAS PENAMPANG KOLOM BETON MUTU TINGGI YANG TERKEKANG DENGAN BLOK TEGANGAN SEGIEMPAT EKIVALEN Darmansyah Tjitradi; Syahril Taufik; Bengawan L. Kosasih
Civil Engineering Dimension Vol. 5 No. 1 (2003): MARCH 2003
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (310.017 KB) | DOI: 10.9744/ced.5.1.pp. 45-50

Abstract

Abstract in Bahasa Indonesia : Beton mutu tinggi merupakan sesuatu yang saat ini masih asing dalam pelaksanaan, konstruksi di Indonesia, tetapi dengan kemajuan teknologi yang memudahkan pembuatannya, dapat diharapkan pemakaiannya dalam waktu mendatang. Artikel ini membahas transformasi diagram tegangan-regangan beton mutu tinggi menjadi segi empat ekivalen seperti biasa digunakan untuk beton mutu biasa.
Permodelan Pengekangan Kolom Pada Beton Mutu Normal Dengan Metode Elemen Hingga 3-D Ridho Saleh Silaban; Darmansyah Tjitradi; Syahril Taufik
Media Ilmiah Teknik Sipil Vol 8 No 2 (2020): Media Ilmiah Teknik Sipil
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1520.271 KB) | DOI: 10.33084/mits.v8i2.1408

Abstract

The column is a critical element in the building structure, the failure of the column will directly result in the collapse of other related structural components. The column must have strength, stability and ductility. In increasing the capacity and ductility of the column by providing confinement, to protect concrete elements from breaking due to the influence of the working pressure. Analyzing ultimate axial load capability, stress-strain distribution patterns and crack patterns in concrete elements and column ductility. Tests of several models and variations of the restraint distance in short columns of normal concrete quality with longitudinal reinforcement of steel steels and carbon steel transversal reinforcement. The columns were analyzed using the Finite Element Analysis (FEA) method with the help of a full scale ANSYS 3-D application, with material properties for concrete using SOLID65 and steel reinforcement using LINK8 and SOLID45 loading plates. The type of pedestal used is the joints with axial loading (axial loadstep) centric direction. The effect of the restraint model and the variation of the restraint distance to the value of the column ultimate axial load for the whole model is relatively small with a ratio of 1.079, while for the ratio of the axial deformation ratio of 1.496. The pattern of stress and strain distribution when yielding spreads throughout the column area but when it reaches the ultimate distribution the concentration is concentrated in the support area. The first dominant crack occurs in the pedestal area and generally occurs in the concrete blanket layer, in the ultimate condition cracks have occurred evenly throughout the column area. The ratio of the ratio of ductility values ​​for all column models and the restraint distance is relatively large with a ratio value of 1.523
ANALISIS PERCEPATAN DENGAN METODE CRASHING PADA PROYEK PEMBANGUNAN GEDUNG X DI BANJARMASIN Eliatun Eliatun; Darmansyah Tjitradi
Jurnal Kacapuri : Jurnal keilmuan Teknik Sipil Vol 5, No 1 (2022): JURNAL KACAPURI : JURNAL KEILMUAN TEKNIK SIPIL (Edisi Juni 2022)
Publisher : Universitas Islam Kalimantan Muhammad Arsyad Al-Banjari Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/jk.v5i1.7230

Abstract

Tulisan ini merupakan hasil penelitian yang dilakukan terhadap pelaksanaan Proyek Pembangunan Gedung X di kota Banjarmasin yang memerlukan pengerjaan yang cepat  sesuai dengan permintaan pemilik, agar gedung tersebut dapat segera difungsikan.Metode yang digunakan untuk percepatan proyek ini adalah hanya penambahan jam kerja/lembur, dengan waktu 1 jam kerja/lembur, 2 jam kerja/lembur, dan 3 jam kerja/lembur agar diperoleh efisiensi biaya dan waktu yang optimum. Percepatan waktu proyek ini dianalisis menggunakan metode crash dengan membandingkan penambahan jam kerja/lembur  pada Proyek Pembangunan Gedung X di kota Banjarmasin.Pembangunan proyek diselesaikan dengan durasi normal 72 hari dan biaya sebesar Rp. 298,406,300.00. Setelah dilakukan percepatan waktu proyek, maka diperoleh waktu percepatan optimum pada penambahan 3 jam kerja/lembur dengan durasi 58 hari dan biaya sebesar Rp. 370,806,300.00. Kata kunci : Metode Crash, Percepatan Waktu, Analisis Penambahan Jam Kerja
Co-Authors Abdul Karim Adriana, Marlia Bengawan L. Kosasih Budi Kurniawan Eliatun Eliatun Fauzi Rahman Hari Nugroho Akimas Hary Afriono Herliani, Erna Ida Barkiah Irfan Prasetia Khatimi, Khusnul Lestari, Della Dwi Lestari, Utami Sylvia Mona Mukhlis, Iwan Fitriady Oktafianus Steven Tjitradi Oktafianus Steven Tjitradi Priyo Suroso Ridho Saleh Silaban Salim, Yeffriansjah Syahril Taufik Syahril Taufik Tjitradi, Aeron Tumingan Tumingan Widadi, Muhammad