Article Per Year (5 Year)
p-Index From 2020 - 2025
0.659
P-Index
This Author published in this journals
All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Sains dan Teknologi Jurnal Teknik Sipil Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Proceedings ACES (Annual Civil Engineering Seminar) APTEK Jurnal Ilmiah Telsinas Elektro, Sipil dan Teknik Informasi
Zulfikar Djauhari
Jurusan Teknik Sipil, Universitas Riau
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation

Published : 30 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 30 Documents
Search

 1   2   3 
Kinerja Struktur Gedung Beraturan Dual System (Concrete Frame - RC Wall Structures) Menggunakan Metode Direct Displacement Based Design Dan Capacity Spectrum Method Purba, Raja Parulian; Djauhari, Zulfikar; Suryanita, Reni
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Earthquake resistant structural design commonly used the concept of forced-based design (FBD). The concept is only based on the analysis of elastic structures and not directly indicated the performance of the building against the effects of the occurred earthquake. So, it requires a performance evaluation by conducting analyzes to reach a state of inelastic structure called the concept of performance-based design (PBD). In this study, there are two methods of performance analysis that were based on the lateral displacement of the inelastic conditions, the methods are Direct Displacement Based Design (DDBD) and Capacity Spectrum Method (CSM). The purposes of this study are to identify and to compare between the performance parameters of the methods. The structural model is a dual system regular building which combine a frame structure and reinforced concrete wall. The seismic load design in this study based on SNI 1726-2012. The reviewed parameter values are the displacement, base shear force, effective damping, and effective vibrating times. The results of this study indicated that all the parameter values of the DDBD method analysis are larger than CSM method. DDBD method produced a target displacement 0.545 m, the base shear force 38293.25 kN, effective damping 14.01%, and the effective vibrating times 3.826 seconds. Mean while the method of CSM produced target displacement 0.175 m, the base shear force 21728.978 kN, effective damping 5.40% and the effective vibrating times of 1.314 seconds. The evaluation of the structure performances which is based on ATC-40 indicated the DDBD method was on damage control level, whereas the CSM method was on the immediate occupancy level.Keywords: Inelastic, dual system regular building structure, direct displacement based design, capacity spectrum method, structure performance.
Perilaku Kekuatan Mortar Tahan Api Dengan Bahan Tambah Gula Aren Putri, Nanda Dwi; Olivia, Monita; Djauhari, Zulfikar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study discusses the behavior of fire-resistant mortar strength with the addition of palm sugar. The purpose of the addition of palm sugar is to increase the fireproof mortar strength at high temperatures. Palm sugar content variation used was 0,10%, 0,30%, and 0,50% of the weight of the cement. The test object made in this study were 48 units with details of 12 pieces of mortar OPC+0,10% palm sugar, 12 pieces of mortar OPC+0,30% palm sugar, 12 pieces of mortar OPC+0,50% palm sugar, and 12 OPC mortar normal as a control. Mortar burned at a temperature of 250○C, 500○C, and 750○C for 3 h at 28 days and then tested compressive strength. The results of research and compressive strength before being burned at a temperature of 250○C showed that normal OPC has the highest compressive strength. But at a temperature of 500○C and 750○C a compressive strength of palm sugar mortarOPC+0,10% higher than normal OPC.Keywords: Mortar fire- resistant, palm sugar, OPC, compressive strength,
Analisa Balok Tinggi Beton Bertulang Dengan Menggunakan Metode Strut and Tie Model (Studi Kasus Balok Tinggi Dengan Beban Merata) Munir, Misbakhul; Djauhari, Zulfikar; Sitompul, Iskandar Romey
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Strut-and-tie models (model fighters and binder) is derived from the truss analogy models. Concrete structures planning usually carried out under the assumption of Bernouli and Navier sectional analysis due to the bending moment. Expressed deep beam when the beam span to height ratio of less than five .One alternative approach to address the structural elements such as deep beam approach is to use a strut-and-tie models, namely by dividing the structure in region B (Bernouli) and D (Distrub) and describe the flow of force (load Plath) as the force transfer occurs reinforced concrete structures due to cracks conditions caused by forced, the parameters of the strut-and-Tie Model (STM) is press rod (strut), pull rods (tie) and points stains (stains zone) as a meeting area. The purpose of this thesis is to analyze the correlation among reinforcing volume to the quality of concrete, steel quality, and variation about long-span the deep beam with the conventional method and the method of Strut-and-tie-models (STM) based on ACI is verified by the Program Computer-Aided-Strut -and-Tie (CAST) The results of the analysis of the deep beam with a distributed load at the end of the assignment of conventional method is more efficient than the STM method for long span for spans of 2.5 and 3.0 m to 4.5 STM method is more efficient than conventional methods. This thesis also explain about high concrete reinforcing design manually base on conventional and strut and tie model (STM) in spite of use program computer-aided-strtu-and tie (CAST) In this study also obtain the correlation among the span length (L), the quality of concrete (f'c), the quality of the steel (fy) and the load evenly to the reinforcement ratio, the addition of span length to enlarge the reinforcement ratio, the addition can reduce the quality of the steel reinforcement ratio, and additional load can increase the reinforcement ratioKeyword: Deep beam, distributed load, reinforce volume, strut-and-tie model, concrete.
Analisis Perbandingan Metode Westergrand Terhadap Metode Desain Langsung Dan Metode Portal Ekivalen Pada Flat Plate Ramadhan, Rian; Djauhari, Zulfikar; Kurniawandy, Alex
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

All this time the analysis and design of plate is often done by using approach method such as Westergrand that commonly used and also use the Direct Design methods and EquivalentFrame methods, this approach method is more often used because it is very difficult to plan a plate with using numerical methods such as finite element method although the results will be more exact. This study aims to determine the comparison between Westergrand method, Direct Design method and Equivalent Frame method, espe cially when applied to the plates that do not have beams such as Flat Plate. This comparison is done in order to see how good this method in terms of ease of calculation, the results of moments, reinforcement and deflection result and in order to see how the behavior of Flat Plate when analyzed using these methods.This research results showed Westergrand method have easier calculation methods when compared to the Direct Design method and Equivalent Frame method but Westergrand method will give a smaller value than the Direct Design method and Equivalent Frame method in terms of moments, reinforcement and deflection. Based on the research results that higher the ratio between long span and short span, the plate behavior will be getting closer to the of one wayaction and corner panel receive the largest proportion of the load from interior and exterior panels.Keyword Plate, Westergrand Method, Direct Design Method, Equivalent Frame Method
Monitoring Kesehatan Struktur Rangka Gedung Tidak Beraturan Berdasarkan Hasil Sensor Akselerometer Darmawan, Wan Fikri; Suryanita, Reni; Djauhari, Zulfikar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Indonesian especially those in urban areas, currently actively undertaking development in various fields especially building construction. If the building is not maintained during the designated life of the plan, then the resistance of the structure of the building will quickly decrease and cause the building will quickly be damaged. Therefore, one of the solutions for maintaining structural resistance required building inspection by using accelerometer sensor. Result of recordings accelerometer sensor will be used as a reference in determining structural damage, so it can determine healthy from structure. This research is obtained to give information response structure from accelerometer data. Structural damage can determine using the equations developed by Jer Fu Wang, Chi Chang, and Shih Min. The building model is irregular reinforced concrete with three levels and height between level is 3,5 m. Building model will receive a dynamic loads from the results of accelerometer sensor. The vibration data used is June 4 and December 11 of 2016 at 06.00, 12.00, 18.00 WIB. The vibration data will be input for building model in doing the linear time history analysis and static nonlinear pushover by using the software finite element. From the analysis, maximum structure behavior is 11 December 2016 at 12.00 WIB. The value of stiffness for pushover analysis in the first step is 5,454, the second step is 5,243, the third step is 5,477, and the fourth step is 5,560. The value of stiffness for linear time history is 5,599. The value of SDI (Story Damage Index) in the first step is 0,026, the second step is 0,064, the third step 0,022 and the fourth step is 0,007. From the results of this SDI, the irregular reinforced concrete building is still in healthy condition.Keywords: accelerometer sensor, structural damage, structural health monitoring
Sifat Fisik Dan Mekanik Mortar Dengan Penambahan Bakteri Baccilus Subtilis Pada Lingkungan Sulfat Ilham, Muhammad; Djauhari, Zulfikar; Sitompul, Iskandar Romey
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

An aggressive environment can have an adverse impact on mortar, because there are reactive chemicals in that environtment. One of the chemicals that no need harmful to mortar is magnesium sulfate. This study used Bacillus Subtilis bacteria as an additive by studying physical and mechanical properties, as well as an innovation to restore mortar using bacteria called Self Healing mortar. In this study there were test objects in the form of a cube measuring 5 x 5 cm with a total of 84 samples. Physical and mechanical properties tests on normal water-immersed normal mortar, normal water-immersed bacterial mortar, and sulfate-water-immersed bacterial mortar were carried out at the age of 28 days and 56 days. The physical properties of the mortar test were sorptivity, unit weight and porosity, while the mechanical properties test testedwere compressive strength. The test results showed that the sorptivity value of the sulfate-soaked bacterial mortar was higher than the normal-water-soaked normal mortar and the normal-water-immersed bacterial mortar at the age of 28 days and 56 days, namely 0.1606 mm / min0.5 and 0.221 mm / min0.5. The results of the weight test showed that the sulfate water-immersed bacterial mortar was lower than the normal water-immersed normal mortar and the normal water-immersed bacterial mortar at the age of 28 days and 56 days, namely 2.002 gr / cm3 and 2.077 gr / cm3. The results of the porosity test showed that the value of the sulfate-immersed bacterial mortar was higher than that of the normal-water-soaked normal mortar and the sulfate-water-immersed bacterial mortar at the age of 28 days and 56 days, namely 14.96 % and 15.22 %, respectively. Meanwhile, in the compressive strength test, the value of the sulfate-immersed bacterial mortar was lower than that of the normal-water-immersed mortar and the normal-water-immersed bacterial mortar at the age of 28 days and 56 days, namely 17.13 MPa and 16.98 MPa, respectively. Based on the data obtained, it could be concludedsaid that bacillus subtillis bacteria couldn’t work well in a sulfate environment.Keywords: Mortar, Bacillus Subtilis, Sulfate Environment, Physical Properties, Mechanical Properties, Self Healing
KEKUATAN DAN DAKTILITAS KOLOM BETON MUTU TINGGI YANG DIKEKANG DENGAN BAJA MUTU TINGGI (KASUS PEMBEBANAN KONSENTRIK Djauhari, Zulfikar; Yuniarto, Enno
Jurnal Sains dan Teknologi Vol 11, No 1 (2012): Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (22.439 KB) | DOI: 10.31258/jst.v11.n1.p%p

Abstract

Tulisan ini memaparkan hasil investigasi perilaku kekuatan dan daktilitas kolom beton mutu tinggi yang dikekang dengan baja spiral atau hoops mutu tinggi, di bawah beban tekan terpusat dan eksentrik. Untuk kasus pembebanan eksentrik, studi menggunakan 18 spesimen kolom pendek berpenampang melingkar dengan diameter 110 mm yang dikekang menggunakan batangan besi spiral. Variabel pengujian meliputi kuat tekan (yield strength), tipe pengekang (hoops), serta jarak dan rasio volumetrik besi pengekang. Efek dari beberapa variabel pengujian terhadap perilaku pembebanan aksial terpusat kolom beton mutu tinggi dipaparkan dan didiskusikan di tulisan ini.Kata Kunci : beton mutu tinggi, baja mutu tinggi, pengekangan
Perbandingan Kapasitas Sambungan Balok -Kolom Konvensional Dan Pracetak Sistem Rigid Joint Precast (RJP) (Studi Kasus Gedung Rumah Susun Sederhana Sewa Pekanbaru) Arrahman, Feri; Djauhari, Zulfikar; Yuniarto, Enno
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Precast system is a system which offers quality controlled implementation, they are neat, fast and economical, thus included systems that fiil the criteria for green construction. Precast concrete construction has many advantages than conventional systems. The advantage of this system are, quality assured, fast and massal production, rapid development, environmentally friendly and tidy with good product quality. For buildings precast system have been researched, developed, applied and proven reliability by the Ministry of Public Works and the various national construction industry since 1995, especially in support of the development program of massal simple flat throughout Indonesia. One of the buildings using precast system is building Rusunawa Pekanbaru. This Rusunawa using RJP-type system of precast concrete. Part of the concern is a precast system on beam-column connections. Beam-column relationship is a critical area in the event of earthquake loads. Earthquake load has a complex effect on the structure. In this study has compared the moment capacity between conventional beam-column connections with precast type of RJP. The results are there differences in the precast concrete RJP peak voltage at the connection angle (A), exterior (B) and interior (C) in the amount of 53.85 MPa, 54.31 MPa and 54.31 MPa. RJP moment the total capacity are equal to A = 140.35 kN.m, B = 116.96 kN.m and C = 116.96 kN.m. Peak voltage difference and the connection moment capacity caused by configuration differences longitudinal reinforcement.Keyword : precast, RJP, conventional, confined, connection
ANALISIS PENGARUH ANALISIS KONSTRUKSI BERTAHAP (CONSTRUCTION SEQUENCE ANALYSIS) TERHADAP EKSENTRISITAS KOLOM BETON BERTULANG Ardyansah, Rofika Ratna; Suryanita, Reni; Djauhari, Zulfikar
Jurnal Ilmiah Telsinas Vol 1 No 2 (2018)
Publisher : Universitas Pendidikan Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In reality, a building structure was built floor by floor or gradually, this is going to affectforces in preliminary design (using Direct Loading Method). The most extreme effect in the form ofeccentricities in the column structure, there this research is giving depiction on how far eccentricitiesdeviation dan what factor affects column structure eccentricities as the consequence of gradualbuilding.This research utilizes Sequential Loading Method, that is weight loading method by trying toimitate loading while construction execution occured with loading weight on gradual and sequentialstructre model.Eccentricities on column structure will extremely decrease if axial weight was added(column with one floor above). This research show eccentricites decrease until 26.39% or decrease asmuch as 73.61% from Full Model analysis. Bekisting dismantling before structure column and floorweight above done correctly is the main factor for a extensive eccentricites on column structure tohappen. So, bekisting dismantling should be planned very well by calculating its structure behavior.
Perbandingan Penilaian Visual Cepat Antara Metode Pendekatan Makroseismik Dengan Metode Fema P-154 (Level-1 Dan Level-2) Emiral Akbara; Djauhari, Zulfikar; Kurniawandy, Alex
Aptek Jurnal Apliksai Teknologi (APTEK): Volume 14, No. 02, Juli 2022
Publisher : Fakultas Teknik Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/aptek.v14i2.1124

Abstract

Kajian pemanfaatan model-model Penilaian Visual Cepat (Rapid Visual Screening) telah marak dilakukan. Banyak negara telah mengadopsi model-model PVC untuk mengasesmen bangunan-bangunan di wilayah masing-masing. Di antara model-model PVC tersebut adalah model makroseismik dan model FEMA P-154. Penelitian ini bertujuan untuk mengkaji perbandingan antara model makroseismik serta model FEMPA P-154 pada tahap level 1 dan level 2. Untuk mencapai tujuan tersebut, maka dilakukan analisis terhadap empat belas gedung pemerintah yang berlokasi di Kabupaten Siak menggunakan model makroseismik maupun model FEMA P-154 level 1 dan level 2. Hasil kajian menunjukkan bahwa meskipun model makroseismik dan model FEMA P-154 keduanya merupakan alat atau media untuk melakukan analisis Penilaian Visual Cepat (Rapid Visual Screening) akan tetapi model makroseismik lebih direkomendasikan untuk digunakan dalam proses PVC karena keakuratannya berdasarkan Indeks Resiko Bencana Indonesia (2019) dan kesederhanaan formular analisisnya
Co-Authors Afrianda, Yogi Alex Kurniawandy Apryan, Yogi Raenaldo Ardyansah, Rofika Ratna Arief, Naufal Arrahman, Feri Darmawan, Wan Fikri Emiral Akbara Enno Yuniarto Fazrian, Dhika Fazrian, Dhika Fitrana, Yaniarto Herol, Herol Heru Satiadi, Heru Ilham Akbar Irvan, Ridho Kurnia Putra Iskandar Romey Sitompul Ismeddyanto, Ismeddiyanto Kampati, Tri Budi Misbakhul Munir Monita Olivia Muhammad Ilham Nanda Dwi Putri, Nanda Dwi Novan, Andre Panjaitan, Aprizal Putri, Ade Septiani Raja Parulian Purba, Raja Parulian Ramadhan, Rian Reni Suryanita Rezky Rendra, Rezky Ridwan, Ridwan Saputra, Yoga Aris Siregar, Syarif Hidayat Steffani, Anggia Syahyudi, Eki Syauqi, Muhammad Widya, Diah