Article Per Year (5 Year)
p-Index From 2020 - 2025
0.817
P-Index
This Author published in this journals
All Journal Media Ilmiah Teknik Sipil Borneo Engineering : Jurnal Teknik Sipil Jurnal Kacapuri : Jurnal Keilmuan Teknik Sipil
Miftahul Iman
Universitas Borneo Tarakan
Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Energy Environmental Science Materials Science & Nanotechnology

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
Metode Perkuatan Struktur Tangga Miftahul Iman; Noerman Adi Prasetya
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.v5i2.1873

Abstract

Kerusakan pada struktur pelat tangga seringkali diabaikan. Upaya perbaikan hanya sebatas menutupi permukaan pelat tangga yang rusak hanya dengan pasta semen. Penelitian ini membandingkan 2 buah metode perkuatan struktur pelat tangga berturut-turut yaitu penambahan tulangan dan perkuatan profil baja siku. Studi kasus dalam penelitian ini adalah struktur pelat tangga utama gedung Fakultas Ilmu Kesehatan (FIKES) Universitas Borneo Tarakan. Penelitian ini mengguanakan metode analisis struktur kesetimbangan momen lentur dengan cara mengevaluasi kenaikan kapasitas momen nominal struktur pelat akibat perkuataan dari tulangan baja dan profil baja siku. Berdasarkan hasil studi evaluasi kinerja dan metode perkuatan struktur pelat tangga beton bertulang dengan metode perkuatan, maka dapat diambil kesimpulan: (a) Hasil pemeriksan mutu beton digunakan estimasi mutu beton minimal yaitu 17 MPa. (b) Berdasarkan hasil pengamatan visual struktur tangga yang terdapat pada tepi struktur disarankan untuk tidak digunakan karena tebal pelat tangga relatif tipis dan terlihatnya beberapa tulangan. Selain itu terdapat retak yang cukup besar dan memanjang pada pelat bordes. (c). Struktur tangga utama aktual berbeda dengan perencanaan, hal itu dapat dilihat pada panjang pelat tangga dan perletakan tumpuan. (d) Secara umum kedua metode perkuatan dapat meningkatkan kapasitas momen nominal tereduksi 40% sampai dengan 60%. (e)metode perkuatan dengan penambahan tulangan baja D10-150 dan penambahan selimut beton 20 mm relatif lebih tinggi daripada metode perkuatan menggunakan profil baja BJ37 L70x70x6 (10,98%).
Pemodelan Numerik Kekuatan Pintu Air Baja Fitriansyah Fitriansyah; Miftahul Iman; Aminullah Aminullah
Media Ilmiah Teknik Sipil Vol 9 No 2 (2021): Media Ilmiah Teknik Sipil
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mits.v9i2.2098

Abstract

The intake building for Embung Sei Bubu had been designed to be an open channel with the flood gate. The flood gate had been designed from steel with a net width of 1.35 m and the height of the door opening is 0.0076 m. The corrosion is one of the hazardous threat to the strengthness and durability of the flood gate. This research numerically models flood gate that was attacked by pitting corrosion. The pitting corrosion had been modelled in several small holes randomly were distributed on the surface of the flood gate, precisely on the surface of the water. The numerical modeling had been performed in finite element method utilized computer programs such Abaqus. The results showed there was a reduction in the capacity of the steel flood gate due the hole increasing. The reduction in stress capacity had been indicated by the stress concentration that was occured around the pitting corrosion. The stress reduction occured with the change in the percentage of pitting corrosion distribution area of ​​10% (225 MPa), 20% (175 MPa) and 30% (120 MPa)
EVALUASI KINERJA STRUKTUR MENARA RANGKA BAJA (DERRICK) BERDASARKAN PERIODE AISC Miftahul Iman; Azis Susanto
Jurnal Kacapuri : Jurnal keilmuan Teknik Sipil Vol 3, No 1 (2020): JURNAL KACAPURI : JURNAL KEILMUAN TEKNIK SIPIL (Edisi Juni 2020)
Publisher : Universitas Islam Kalimantan Muhammad Arsyad Al-Banjari Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/jk.v3i1.3605

Abstract

Tarakan adalah kota penghasil minyak yang telah dikenal sejak 1896. Derrick didefinisikan sebagai fasilitas pengeboran minyak bumi. Prototipe derrick dimodelkan dengan elemen rangka 3D dalam SAP2000. Tiga standar telah digunakan seperti AISC- ASD 1983; AISC-LRFD 1993; dan AISC 2010. Kombinasi beban angin (W) dan gempa (E) telah dibandingkan. Analisis tekuk tunggal dan keseluruhan telah dipertimbangkan. Hasil penelitian menunjukkan bahwa struktur derick memenuhi persyaratan stabilitas dan kekuatan. Pengaruh kombinasi beban angin (W) pada struktur derek lebih signifikan (9,45%) daripada beban gempa (E). Beban tekan aksial terbesar maksimum 9,37 kN pada elemen kaki (legs). Kegagalan tekuk tidak terjadi pada struktur derrick. Beban kritis (Pcr) tercatat 700,45 kN (Euler), 693,41 kN (tunggal), dan 219,67 kN (struktur).  Kata Kunci: tekuk, on shore, kapasitas, angin, rig
Analisis Sambungan Balok-Kolom Beton Bertulang Dengan Pemodelan Numerik Berbasis Metode Elemen Hingga: The Beam-Column Reinforced Concrete Connection Analysis In Numerical Modeling Based On The Finite Element Method Aminullah Aminullah; Miftahul Iman
Media Ilmiah Teknik Sipil Vol. 10 No. 2 (2022): Media Ilmiah Teknik Sipil
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mits.v10i2.3614

Abstract

A Damage to the reinforced concrete beam-column connection system had found in buildings such as residential buildings, houses of worship, and so on. This was caused by an incidental changed in the position of the beam elevation at the beam-column connection. The research had modelled the reinforced concrete beam-column connection with variations beam elevation, successively: h; 2h; and 3h where h was the height of the column. Modeling used 3D frame idealization and 3D solids element. The idealization of 3D frames had used to evaluate the capacity of the beam-column due to the beam elevation changed. T. The results showed that due to beam elevation chnaged had significant increased in the moment and shear capacity. The percentage increased in moment and shear respectively were 15%, 35%, and 45% of the control beam-column. The most severe cracks were occurred when the beam elevation was at 1.00hb. The percentage of beam-column connection stress concentration is 8,74% (CM); 9.80% (0.25hb); 11.09%(0,50hb); 12.13%(0.75hb); and 13.41% (1.00hb) for the ratio of horizontal and vertical stresses (S11/S22) on concrete frames. The percentage of stress concentration in steel reinforcement is 4.15% (CM); 4.47%(0.25hb); 5.25%(0,50hb); 4.56%(0.75hb); and 4.57%(1.00hb) for the comparison of von Mises and horizontal stresses (SVM/S11)
Co-Authors Aminullah Aminullah Azis Susanto Fitriansyah Fitriansyah Prasetya, Noerman Adi