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All Journal Inersia : Jurnal Teknik Sipil
MUKHLIS ISLAM
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Civil Engineering, Building, Construction & Architecture

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PERILAKU DINAMIK PLAT LANTAI BERBENTANG PANJANG DENGAN DAN TANPA PENGAKU RANGKA BATANG MUKHLIS ISLAM
Inersia: Jurnal Teknik Sipil Vol 1, No 2 (2010)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (352.956 KB) | DOI: 10.33369/ijts.1.2.10-19

Abstract

The aim of this research is to study the effectiveness and the characteristics of structural dynamics of long span RC slab which is stiffened by the addition of steel truss and to verify the numerical analysis results which might be used in the next stage as material of consideration to analyze and design the stiffening method of any prototype or existing structure in need. The experimental works are carried out by using 2 RC slabs with length, width and thickness are 4,6 x 0,96 x 0,05 m respectively, while numerical work shall be carried out by applying structural analysis computer program. The experimental results which are structural dynamic characteristics then will be compared to numerical result.The results of the research show that the behavior of the structure under dynamic loading increased significantly by addition of steel truss, indicated by the increase of structural natural frequency between 15,565% up to 33,33% for several type of truss. The results also show that the average difference between experimental and numerical analysis is 4,503%.
PENGARUH PENAMBAHAN ABU SEKAM PADI TERHADAP KUAT TEKAN MORTAR Auliarizky Pascasari; Ade Sri Wahyuni; Mukhlis Islam; Agustin Gunawan; Yuzuar Afrizal
Inersia: Jurnal Teknik Sipil Vol. 13 No. 2 (2021)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.13.2.84-88

Abstract

The purpose of this research is to know the comparison of compressive strength mortar with additional material rice husk ash to normal mortar. Rice husk ash used has been burned at high temperatures above 400°C. The percentages of rice husk ash used are 6%, 9%, 12%, and 15% with 7 samples in each variations. The total of mortar cubes are 105 pieces sized 50mm x 50mm x 50mm. The range of initial flow values are used 105%-115% (SNI 03-6882-2002). The test specimen was immersed for 13, 20, and 27 days and mortar compressive strength test was conducted at the age of 14, 21, and 28 days. The highest compressive strength occurred at 9% variation with an average compressive strength value of 13,24 MPa, with a percentage increase of 10,15% from normal mortar. The lowest compressive strength occurred at 6% variation with an average compressive strength value of 11,22 MPa, with percentage decrease of 6,66% from normal mortar. The result shows that the use of rice husk ash with variation 9% and 12% produce higher compressive strength than normal mortar.
PENGARUH PENGGUNAAN ABU TERBANG (FLY ASH) SEBAGAI BAHAN TAMBAH TERHADAP KUAT TEKAN MORTAR Titanya Azizah; Ade Sri Wahyuni; Mukhlis Islam; Agustin Gunawan; Yuzuar Afrizal
Inersia: Jurnal Teknik Sipil Vol. 14 No. 1 (2022)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.14.1.28-34

Abstract

Mortar is material used in non-structural elements. The increasing of quality of the mortar can be obtained by adding other alternative materials to its constituent materials. The materials that have pozzolan characteristic can increase the compressive strength of the mortar. Fly ash has a pozzolan characteristic and contains silica so that it can be used as an additive to cement. This study aims to know the compressive strength of mortar by using fly ash as the additional material of cement with the ratio of cement to fine agregate were 1pc : 3ps on 14, 21, and 28 days. The sample of the mortar is a cuboid sized 50mm x 50mm x 50mm. The variations of fly ash used were 5%, 10%, 15%, and 20% with 7 samples in each variations. The range of initial flow values was between 105%-115% (SNI 03-6882-2002). The biggest compressive strength value for normal mortar is 11.15 MPa and the biggest compressive strength for the variation of mortar is 14.43 MPa at 15% variation at 28 days. The percentage increase in the compressive strength of the mortar is 29,48% from normal mortar.
PERILAKU DAN KETAHANAN STRUKTUR RUMAH VERNAKULAR DESA GUNUNG ALAM LEBONG TERHADAP GEMPA BUMI Samsul Bahri; muhammad Fauzan Hanif; Mukhlis Islam; atik Prihatiningrum
Inersia: Jurnal Teknik Sipil Vol. 14 No. 1 (2022)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.14.1.1-10

Abstract

Lebong Regency is an earthquake-prone area in Bengkulu Province. This is because Lebong Regency is located adjacent to the Bukit Barisan Mountains which are included in the earthquake-prone zone and in the line of active faults. This research was conducted at Mr. Sonid’s vernacular house in Gunung Alam Village, Pelabai District, Lebong Regency to determine the behavior and the resistance of its structure.The behavior and resilience of the vernacular house structure against earthquakes is analyzed based on SNI 1726:2019. The analysis was carried out using SAP 2000 software to obtain the actual internal forces in the form of bending moment (M), shear force (V), and compressive force (P).The capacity of the wood structure was analyzed using the Load and Resistance Factor Design (LRFD) method which refers to SNI 7973:2013 to obtain adjusted moment capacity values (M'), adjusted compression capacity (P'), and adjusted shear capacity (V').The results of structural analysis of earthquakes produce the same actual internal forces in medium and soft soil conditions so that all structural elements of the vernacular house have the same structural behavior.Analysis of the capacity of the wooden structure results the adjusted internal forces of some structural elements which are smaller than the actual internal forces, so that the vernacular house structure is unable to withstand the forces that occur. However, based on the earthquake and its impact until this research was conducted, the condition of the vernacular house still stands strong without any damage to its structural elements.
ANALISIS STRUKTUR DENGAN DINDING PENGISI DAN TANPA DINDING PENGISI PADA GEDUNG BERTINGKAT TERHADAP PERILAKU DINAMIK DENGAN METODE TIME HISTORY TIARA CAHAYA; Mukhlis Islam; Yuzuar Afrizal; Ade Sri Wahyuni; Agustin Gunawan
Inersia: Jurnal Teknik Sipil Vol. 15 No. 1 (2023)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.15.1.77-84

Abstract

This study aims to compare structural modeling with the addition of wall elements and without walls with the help of SAP2000 software. The method used in this study is time history analysis using the San Fernando groundmotion data. Based on the modeling that has been done, the participation of the variance mass has reached 90% for structures with walls in mode 278 while without walls in mode 243. The addition of walls in this study resulted in a decrease in the drift value. The average percentage of settlement of each floor is 40.12% for the X direction and 30.26% for the Y direction. The addition of walls can also reduce the period value of the structure, where the structure with walls has a period value of 1.0804 seconds while the structure without walls is 1 ,2016 sec.   Keywords: Building Structure, Infill Wall, Drift, Time History Analysis
STUDI PERBANDINGAN ANALISIS KOLOM BETON BERTULANG BERBENTUK + (PLUS-SHAPED COLUMN) DENGAN KOLOM BERBENTUK PERSEGI Bob Ramosta; Mukhlis Islam; Ade Sri Wahyuni; Agustin Gunawan; Yuzuar Afrizal
Inersia: Jurnal Teknik Sipil Vol. 15 No. 2 (2023)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.15.2.154-163

Abstract

Penelitian ini membahas tentang studi perbandingan analisis kolom dengan variasi bentuk penampang kolom yang berbeda antara kolom + (Plus–shaped column)dan kolom beton bertulang berbentuk persegi. Penelitian ini bertujuan untukmenganalisis seberapa besar pengaruh perubahan bentuk kolom terhadap kekuatanstruktur kolom. Perhitungan ini terdiri dari 120 sampel dengan perbedaan mutubeton (fc’), rasio tulangan dan dimensi kolom pada masing-masing sampel.Analisis perhitungan kolom menggunakan hubungan diagram tegangan reganganHognestad. Hasil penelitian, semakin besar rasio tulangan maka selisih nilai Mnkolom + (Plua-shaped column) dan kolom persegi untuk tiap luasan, semakinbesar. Semakin besar rasio tulangan maka selisih nilai Pn kolom + (Plus-shapedcolumn) dan kolom persegi untuk tiap luasan semakin kecil.Kata kunci : kolom beton bertulang, kolom + (Plus-shaped column), rasio tulangan, kapasitas kolom.
Co-Authors Ade Sri Wahyuni Agustin Gunawan atik Prihatiningrum Auliarizky Pascasari Bob Ramosta muhammad Fauzan Hanif Samsul Bahri TIARA CAHAYA Titanya Azizah Yuzuar Afrizal