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All Journal Jurnal Deformasi Jurnal Rekayasa Konstruksi Mekanika Sipil Jurnal Media Teknik Sipil
Kalangi, Hendry Tanoto
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Civil Engineering, Building, Construction & Architecture Engineering Materials Science & Nanotechnology Transportation

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SIMULASI PERHITUNGAN KEKUATAN NOMINAL PENAMPANG BALOK DAN KOLOM BETON BERTULANG BERBASIS GRAPHICAL USER INTERFACE Kalangi, Hendry Tanoto; Tanijaya, Jonie; Malik, Vidya Maitri
Jurnal Deformasi Vol. 4 No. 2 (2019): JURNAL DEFORMASI
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/deformasi.v4i2.3547

Abstract

ABSTRAKPerhitungan kekuatan nominal penampang balok dan kolom beton bertulang secara manual membutuhkanprosedur perhitungan yang panjang dan membutuhkan waktu yang cukup lama. Penelitian ini bertujuan untuk mengembangkan suatu program berbasis antarmuka pengguna grafis, yang dimaksudkan untuk mempermudah perhitungan kekuatan nominal penampang balok dan kolom beton bertulang dan menghemat waktu dalam proses perhitungannya. Antarmuka pengguna grafis dipilih karena telah tersedia untuk berbagai sistem operasidan memiliki tampilan grafis yang cukup sederhana dan mudah digunakan. Dalam penelitian ini, program yang dibuat meliputi perhitungan kuat lentur dan geser dari balok persegi, balok T, kolom pendek. Setelah dibandingkan dengan perhitungan manual, program menghasilkan output yang tidak menunjukkan perbedaan yang signifikan sehingga program yang dibuat ini dapat dikatakan cukup valid dan bisa digunakan. Dari perhitungan program yang telah dibuat, persentase luas tulangan sangat mempengaruhi kuat nominalpenampang dan didapatkan hasil, semakin besar rasio tulangan yang digunakan maka kuat penampang balok dan interaksi P-M kolom meningkat.Kata Kunci : Kuat nominal, atarmuka pengguna grafis, beton bertulang
Analisis Pengaruh Penggunaan Sedimen Bendungan Bili Bili Sebagai Substitusi Agregat Halus Terhadap Kuat Tekan Beton Chandra, Yoshua; Mursalim; Kalangi, Hendry Tanoto
Jurnal Media Teknik Sipil Vol. 3 No. 1 (2025): Jurnal MeDia Teknik Sipil, Vol. 3, No. 1, 2025
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Atma Jaya Makassar

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Abstract

increase while the supply is getting smaller so that it needs a partial substitute alternative to concrete mixtures to overcome the limitations of using natural materials. The purpose of this study is to find out how much influence the compressive strength results from the substitution of fine aggregate with sediment from the Bili Bili Dam. The method used in this study is an experimental method that refers to the SNI 7656-2012 testing standard. The variation in the sediment percentage in this study was 0%, 2.5%, 5%, 7.5% and 10% of the weight of the fine aggregate used. The concrete quality planned in this study is 14.53MPa and uses cylindrical samples measuring Ø15cm and 30cm high, as well as cubes with a width of 15cm and a height of 15cm. Based on the results of the study, the compressive strength value for the use of sediment as a substitute for some fine aggregate successively reduced the compressive strength of concrete during the age of 3, 7, 14, 28 days from the planned concrete quality to be reduced by 3.8%, 13.67%, 22.10%, 34.44% and 48.72%, the cause of reduction by the high mud content in the sediment.
Pengaruh Penggunaan Bambu Sebagai Pengganti Sebagian Agregat Kasar Terhadap Kuat Tekan Beton Tanpa Perlakuan Khusus Tamangunde , Pricilia Yohana; Mursalim; Kalangi, Hendry Tanoto
Jurnal Media Teknik Sipil Vol. 3 No. 1 (2025): Jurnal MeDia Teknik Sipil, Vol. 3, No. 1, 2025
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Atma Jaya Makassar

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Abstract

Pertumbuhan penduduk yang pesat di Kota Makassar mendorong peningkatan aktivitas ekonomi dan pembangunan, sehingga permintaan akan material konstruksi, khususnya beton, semakin tinggi. Melihat potensi bambu yang berlimpah di Indonesia, khususnya di Kota Makassar, penelitian ini bertujuan untuk mengeksplorasi penggunaan bambu sebagai alternatif dalam campuran beton. Bambu memiliki potensi untuk digunakan sebagai bahan tambahan atau pengganti sebagian agregat kasar dalam beton, yang dapat mengurangi penggunaan bahan non-daur ulang dan memberikan manfaat lingkungan. Meskipun penggunaan bambu dapat memberikan keuntungan seperti mengurangi berat jenis beton dan meningkatkan daya tahan terhadap retakan, pengaruhnya terhadap kekuatan tekan beton perlu diteliti lebih lanjut. Penelitian ini akan mengacu pada studi sebelumnya yang menunjukkan bahwa penggunaan bambu sebagai pengganti sebagian agregat kasar pada kadar di atas 10% mengalami penurunan kekuatan tekan. Oleh karena itu, penelitian ini akan menggunakan persentase kadar bambu sebesar 2%, 4%, 6%, dan 8% untuk mengevaluasi pengaruh bambu pada kekuatan tekan beton.
Analisis Kuat Tekan Beton Menggunakan Substitusi Agregat Pasir Laut dan Batu Pecah Batu Gunung Desa Lakapera Sulawesi Tenggara Wake, Maria Evangeline; Mursalim; Kalangi, Hendry Tanoto
Jurnal Media Teknik Sipil Vol. 3 No. 1 (2025): Jurnal MeDia Teknik Sipil, Vol. 3, No. 1, 2025
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Atma Jaya Makassar

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Abstract

Lakapera is one of the villages in Gu District, Central Buton Regency, Southeast Sulawesi. The people of Lakapera Village, Southeast Sulawesi Province, often use aggregates from the sea and mountains found in the village. This is due to the absence of a river in Lakapera Village which results in the use of sea sand aggregate and crafted stone of mountain stones as building materials. The purpose of this research is to provide information about the condition of aggregate characteristics from Lakapera Village that can be used as a mixture material in making concrete and to obtain how strong it is produced. The test piece process was made by replacing part of the local aggregate using sea sand and crushed stone from Mount Lakapera Village with a mixture percentage of 5%, 15%, and 30% on the 7, 14, 21, and 28 days of concrete age. Based on the result, the material characteristics of all aggregates are safe to use as concrete materials. The results showed that the compressive strength obtained decreased by a percentage of 2,20% of the test specimen (70:30%), from the initial compressive strength of 18,7MPa, in the 28 day concrete age test. The compressive strength of concrete using mixed materials 0%, 5%, 15%, and 30% at the 28-day age concrete was 19,50MPa with a percentage of 104,28% (Test specimen 100:0%), 18,75MPa or 100,29% (Test specimen 95:5%), 18,47MPa or 98,79% (Test specimen 85:15%), and compressive strength of 18,28MPa or 97,80% (Test specimen 70:30%) of the planned compressive strength.
Analisis Kondisi Keruntuhan Dan Beban Tekuk Kolom Profil Baja KALANGI, Hendry Tanoto; TANIJAYA, Jonie; WITANTO, Ronald Likar
Jurnal Rekayasa Konstruksi Mekanika Sipil Vol 2 No 2 (2019): Volume 2 Nomor 2 Tahun 2019
Publisher : Fakultas Teknik Universitas Katolik Santo Thomas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1623.689 KB) | DOI: 10.54367/jrkms.v2i2.522

Abstract

This study discussed the H and WF steel profiles that encountered axial compressive forces. A structural element with a straight geometry was loaded by axial compressive forces which is started from 1 N until the highest load that could be achieved. This simulations was done by finite element method program of Ansys R18.0. In this study, an analysis of the H and WF steel profiles was carried out to obtain failure conditions and the value of buckling load that can be achieved from the steel profile with variations in type of restraints. The buckling load analysis is carried out theoretically (literature) and compared with eigenvalue buckling by Ansys R18.0. The buckling load generated by Ansys R18.0 will also be analyzed to obtain the effective length conversion factor (K) and then compare it with the K value got from the existing literature.The results showed both H and WF steel profile underwent failure by flexural buckling conditions, meanwhile the largest buckling load is 1.452,5729 kN of H 200x200x12x8 profile with fixed-fixed type of restraints, and the smallest buckling load was found 1,7639 kN of WF 100x50x7x5 profile with fixed-free type of restraints by the theoretical analysis. The effective length conversion factor (K) by using Ansys R18.0 was found 6% smaller than the existing literature. The buckling loads calculated by Ansys R18.0 was found 12% greater than the results of theoretical analysis
Co-Authors Chandra, Yoshua Malik, Vidya Maitri Mursalim Tamangunde , Pricilia Yohana Tanijaya, Jonie Wake, Maria Evangeline WITANTO, Ronald Likar