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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Teknik ITS IPTEK The Journal of Engineering IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science Jurnal IPTEK Journal of Civil Engineering JTT (Jurnal Teknologi Terpadu) Civil Engineering Dimension Civil Engineering Journal Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Aplikasi Teknik Sipil Jurnal Teknologi dan Manajemen Journal of Marine-Earth Science and Technology Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Aceh International Journal of Science and Technology Eduvest - Journal of Universal Studies JEECS (Journal of Electrical Engineering and Computer Sciences) Sewagati Nucleus Journal
Data Iranata
Institut Teknologi Sepuluh Nopember Surabaya
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Assessment and Prediction of Hydrometeorological Drought in Corong River Basin, Indonesia Affandy*, Nur Azizah; Iranata, Data; Anwar, Nadjadji; Maulana, Mahendra Andiek; Prastyo, Dedy Dwi; Yusop, Zulkifli; Wardoyo, Wasis
Aceh International Journal of Science and Technology Vol 12, No 3 (2023): December 2023
Publisher : Graduate School of Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/aijst.12.3.32592

Abstract

Hydrological drought analysis in a river basin is crucial because it impacts water resource management, agriculture, drinking water supply, industry, ecology, and disaster risk mitigation. It plays a key role in water usage planning, safeguarding agricultural yields, and ensuring a stable drinking water supply. In the context of this research, the Corong River basin is used as a case study. This study aims to determine the level of hydrological drought (deficit) using the Threshold Level Method (TLM) and predict hydrological drought using the Seasonal Autoregressive Integrated Moving Average (SARIMA) model. This model understands the characteristics of drought and predicts drought in the Corong River basin for early mitigation and anticipation of drought in the region. The results of this research indicate a strong relationship between the Hydrological Drought Index (HDI) and streamflow and Precipitation (PRCP), which can be used to forecast future droughts. This model is highly robust and accurate in observing the level of hydrological drought (deficit, duration, and sharpness) and predicting drought events in the Corong River basin. These findings have significant practical implications for water management and disaster risk mitigation in this river basin while also advancing the scientific understanding of hydrological drought.
Influence of Polymer Superplasticizers Usage on Workability and Compressive Strength of 30 MPa and 40 MPa Concrete Iranata, Data; Suswanto, Budi; Septiarsilia, Yanisfa
Jurnal IPTEK Vol 28, No 1 (2024): May
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2024.v28i1.5283

Abstract

The advancement of technology has provided various alternatives to address limitations in concrete construction. One effective method for enhancing the quality of concrete is by introducing additional materials, known as admixtures, during the concrete production phase. One such type of admixture that can significantly improve concrete quality is superplasticizer. The primary principle behind the use of superplasticizer is to create a repelling force between cement particles to prevent clumping, which can lead to the formation of air voids in the concrete. This, in turn, can reduce the strength or quality of the concrete. In this research, the focus will be on the use of concrete admixtures, specifically superplasticizer, to enhance concrete workability. One product of superplasticizer is Sika Viscocrete 3115 N, which will be used in this study. Superplasticizers like Sika Viscocrete 3115 N play a crucial role in improving the flow and workability of concrete mixes, making them easier to handle and place during construction. This leads to more efficient and high-quality concrete structures. The target compressive strengths are 30 MPa and 40 MPa with variations in the percentage of superplasticizer admixture usage at 0%, 0.25%, 0.5%, and 0.75%. The testing methods used to determine the workability value are the slump test and the slump flow test, while the compressive strength test is conducted using a compression testing machine at the Advanced Concrete Materials and Computational Mechanics Laboratory, Department of Civil Engineering, ITS. The study concludes that the addition of superplasticizer can enhance the workability of concrete but cannot optimally increase compressive strength. Additionally, different planned compressive strengths with the same percentage variation exhibit different trends. The addition of 0.25%-0.5% superplasticizer in both planned strengths still yields compressive strength above the planned levels, despite the decrease.
Analisis Karakteristik Material Baja dengan Metode Digital Image Correlation (DIC) Suswanto, Budi; Iranata, Data; Septiarsilia, Yanisfa
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 30, Nomor 1 (2024)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v30i1.59491

Abstract

The use of steel materials in building construction opens new opportunities for sustainable development, as steel exhibits corrosion resistance, durability, and reliability in terms of strength and ductility. Digital Image Correlation (DIC) is non-contact technique in which digital images of the surface of a test object are captured using high-resolution cameras.  This study conducted measurements of strain distribution on the specimen's surface using the DIC method throughout the entire tensile testing process. The study particularly focuses on examining changes in strain distribution during the melting phase and the local deformation phase leading to fracture. In this research, a comparison will be made between the load-displacement curves obtained from experimental laboratory testing and the results analyzed using the DIC method for SS400-grade steel material. Based on the results of the tensile test and DIC analysis that have been conducted, conclusions have been drawn in the research. The tensile test results of SS400 steel material with a thickness of 6 mm, 8 mm, 10 mm, and 12 mm meet the quality requirements in the tested specification standards, and the results of the force-displacement curve between the experimental test results and the DIC method obtained a minimum deviation with a value below 10%,. Therefore, it can be concluded that the DIC method exhibits a reasonably good level of accuracy, making it suitable for validating the results of experimental tests.
Experimental Study of Two-way Half Slab Precast Concrete using Rextangular Rigid Connection Djoko Irawan; Ahmad Basshofi Habieb; Data Iranata; Priyo Suprobo; I Gusti Putu Raka
Civil Engineering Dimension Vol. 26 No. 1 (2024): MARCH 2024
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/ced.26.1.63-70

Abstract

A half-slab precast concrete (HSPC) system with precast bottom layers and in-situ cast top layers has been widely applied in various constructions. It generally behaves as a one-way slab due to the absence of positive-flexural reinforcements in the perpendicular direction to the precast component. However, in some cases, the HSPC was also applied in a two-way slab system. Consequently, a particular design and treatment in the connection between precast members was required, so that the bending moment in two orthogonal directions could be accommodated. In the present study, an innovative rectangular rigid connection (RRC) in a two-way HSPC system was investigated through an experimental test. It was found that the RRC-HSPC presented only a 9.13% reduction of the load at the crack, a 16.44% reduction of the ultimate load, and a 6.06% increase of the deflection at the crack when compared to the monolithic one.
The Relationship between Hydro-Agricultural Drought in the Corong River Basin: A Causal Time Series Regression Model Nur Azizah Affandy; Data Iranata; Nadjadji Anwar; Mahendra Andiek Maulana; Wasis Wardoyo; Dedy Dwi Prastyo; Bangun Muljo Sukojo
Civil Engineering Dimension Vol. 26 No. 2 (2024): SEPTEMBER 2024
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/ced.26.2.173-190

Abstract

This research explores the relationship between hydrological drought and agricultural drought in the Corong River Basin, focusing on the Gondang Reservoir Irrigation Area, Indonesia. By employing a Causal Time Series Regression Model, the study uncovers that agricultural drought twelve months prior has a significant impact on current agricultural drought and is influenced by current hydrological drought. Time series regression analysis reveals that 45.86% of agricultural drought is influenced by hydrological drought, with 54.14% influenced by other factors besides rainfall. Further research is needed to investigate these additional factors. These findings have practical implications, serving as a valuable index for assessing drought severity and planning mitigation actions, especially in the irrigation areas of interest. They emphasize the importance of effective irrigation management, appropriate cropping patterns, and a comprehensive understanding of the complex characteristics of drought in agricultural regions through comprehensive monitoring efforts in agricultural drought mitigation.
A Comprehensive Research Review Regarding the Material Behavior of Concrete Filled Double Skin Tubes Cintantya Budi Casita; Data Iranata; Budi Suswanto; Masahide Matsumura
Jurnal Teknologi dan Manajemen Vol 5, No 1 (2024): January
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jtm.2024.v5i1.5213

Abstract

This study provides a detailed investigation of the material behavior of concrete-filled double-skin tubes (CFDST). The research primarily focuses on the development and examination of cross-sectional variations, stress-strain relationships in the materials, and their corresponding characteristics. By conducting a comprehensive study and evaluation, this research endeavors to provide a more profound comprehension of the impact of this particular behavior on the overall responsiveness and capacity of materials. The influence of various parameters on a variety of cross-sectional configurations, comprising circular outer and circular inner tubes (C-C), circular outer – square inner tubes (C-S), square outer – circular inner tubes (S-C), square outer – square inner tubes (S-S) have been recently examined in earlier research. Furthermore, this study discusses additional evaluations consisting of sandwiched concrete and the inner and outer steel components. Despite the substantial study conducted by CFDST, there is presently a lack of established guidelines or regulations pertaining to the design of composite structures. Consequently, it is imperative to acquire a comprehensive comprehension of the behavior exhibited by these materials. This understanding serves as essential for the development of design rules specific to CFDST composite structures. By performing consequently, the outcomes of this study can be effectively employed in the design, analysis, and optimization of the distinctive attributes associated with composite materials.
Effect of Axial Load on the Seismic Performance of Steel Reinforced Concrete Beam-Column Joint Iranata, Data; Suswanto, Budi; Amalia, Aniendhita Rizki; Tajunnisa, Yuyun; Septiarsilia, Yanisfa
Civil Engineering Journal Vol. 11 No. 6 (2025): June
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2025-011-06-016

Abstract

Steel-reinforced concrete (SRC) provides numerous advantages, such as enhanced energy dissipation, ductility, stiffness, and strength, particularly in seismic performance. Several studies on the effect of axial loads on columns found that axial loads have an insignificant influence on column capacity, though they influence long-term performance. Beam-column joint elements are among the critical components that determine the seismic behavior of a structure. Inaccurate design of these joints can lead to fatal structural damage, potentially causing structural collapse. This study aimed to perform a numerical analysis of various joint configurations under cyclic and axial loads to identify models with the best seismic performance that consisted of four models using different SRC length parameters. The research used nonlinear finite element methods with the ABAQUS software, which enables detailed simulations of joint behavior, including predictions of failure mechanisms that are difficult to observe in experimental testing. The results of the analysis showed that the CS-02 model demonstrated the best seismic performance. Axial load increased the capacity in all models, improved energy dissipation in the RC model, slightly reduced dissipation in CS models, and caused different rotational behavior across models.
Studi Perbandingan SNI Baja terhadap Metode Perhitungan Kekuatan Aksial Tekan pada Elemen Komposit Tabung Baja Berpengisi Beton Amalia, Aniendhita Rizki; Irawan, Djoko; Iranata, Data
Jurnal Aplikasi Teknik Sipil Vol 22, No 2 (2024)
Publisher : Departemen Teknik Infrastruktur Sipil Institut Teknologi Sepuluh Nopember Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j2579-891X.v22i2.20408

Abstract

This article provides information regarding the comparison of methods and results for calculating  compressive strength in compression member composite elements of concrete filled steel tubes (CFST) based on three standards (SNI) related to the design and specifications of structural steel in buildings. The three standards being compared are SNI 03-1729-2002, SNI 1729-2015 and SNI 1729:2020. Hollow structural sections (HSS) are widely used as structural elements, then increase their strength and reliability, concrete is added as a filler, known as Concrete Filled Steel Tubes (CFST) Sections. In all three standards, there are the same concept and discussion. Meanwhile, different methods, formulas, and coefficients appear in the calculation of compressive axial strength for CFST, so there are different results. The design axial strength values based on SNI 1729-2015 and SNI 1729:2020 are coincide, even though there are different coefficients. Further, the calculation results of the two SNIs are smaller than SNI 03-1729-2002 due to significant change in the suggested reduction factor. Overall, based on this study, the existing CFST member designed using SNI 03-1729-2002 needs to be re-evaluated, especially in their axial force restraining contribution. 
Design and Performance Analysis of Cold Rolled Steel Structures in A Two-Story House Based on SNI 7971:2013 Darmawan, Andun Sulistyo; Iranata, Data
Eduvest - Journal of Universal Studies Vol. 5 No. 1 (2025): Journal Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v5i1.50258

Abstract

This research aims to design cold-rolled steel (CFS) structures in two-story residential buildings by referring to the SNI 7971:2013 standard. The methodology used includes structural modeling using SAP 2000 software to analyze the strength and stability of the building. The data used includes technical parameters of cold rolled steel as well as relevant dead load, live load, wind load and earthquake load criteria. The results of this research show that the application of cold rolled steel to a two-story building structure produces strength and stability that meets standards. Analysis indicates that cold-rolled steel has significant advantages such as high strength, light weight, and design flexibility, so it can be applied to various structural components, including roof frames, walls, and floors. In addition, cold rolled steel has proven to be efficient in the construction process and is resistant to corrosion and fire, making it an economical and durable material. This research provides detailed guidance in modeling and analyzing building structures using SAP 2000, which is very useful for engineers and construction practitioners. It is hoped that the findings of this research will support better decision making regarding the optimal use of materials and construction methods for two-story buildings, as well as encourage further innovation in the application of cold-rolled steel in multi-storey building construction.
Development and Analysis of an Innovative Precast Concrete U-Shell Beam Suswanto, Budi; Iranata, Data; Septiarsilia, Yanisfa; Raka, I Gusti Putu
IPTEK The Journal of Engineering Vol 10, No 1 (2024)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v10i1.a20049

Abstract

Precast concrete offers several advantages compared to conventional systems; precast concrete structure technology has become a strategy to enhance standardization, quality control, labor efficiency, and reduce environmental impact and construction pollution. The U-Shell precast beam is a reinforced concrete beam with a 'U' shape designed to enhance practicality and expedite the construction process as it does not require additional formwork and shoring during implementation. The U-Shell beam functions as a permanent formwork, and its design follows either monolithic or conventional methods. In multi-story buildings, using U-Shell beam can increase practical value, reduce costs, and improve time efficiency because they do not require additional formwork and scaffolding in the implementation application. This research involves the development of U-Shell precast beams, structure loading considering various loads, modeling using computer program to determine the structural reactions on each element, reinforcement design for the U-Shell beam structure, and analysis of the lifting and assembly of U-Shell precast beam. The building selected for reviewing U-Shell beams is the Building with a Special Moment Resisting Frame System. From the results of the analysis, the researcher drew several conclusions regarding the reinforcement design for the U-Shell beam under both conditions. In the condition before composite, the number of installed main reinforcements is 6 with a diameter of 13 mm, while in the condition after composite, the number increases to 8 with a diameter of 16 mm. Lifting reinforcement requires a diameter of 10 mm. The difference in reinforcement between before composite and after composite conditions is because before the composite the beam is still receiving self-load, whereas for the after composite condition the change in moment occurs. After all, the beam has received self-load and other loads. The development and analysis of an innovative precast concrete U-Sheel beam has complied with strength and serviceability.
Co-Authors . Faimun A. A. Ngurah Satria Damarnegara Abdul Rochim Adnan Fadhlullah Muharam Affandy*, Nur Azizah Alfian Ravi Roshan Ali Limam Alrasyid, Harun Aniendhita Rizki Amalia Arina Hayati Bambang Piscesa Bangun Muljo Sukojo Bararatin, Kirami Budi Rahardjo Budi Suswanto Cahya Buana Cahyadini, Sarah Catur Arif Prastyanto, Catur Arif Chiu, Chien-Kuo Cintantya Budi Casita Darmawan, Andun Sulistyo Dea Fauziah Larasati Dea Fauziah Larasati Dedy Dwi Prastyo Dedy Dwi Prastyo Dimas Prayoga Prayoga Djoko Irawan Djoko Irawan Djoko Irawan Endah Wahyuni Endah Wahyuni Faimun Faimun Fajrin Ramadhani Farida Rahmawati Ferry Alius Ferry Alius Fikri Ghifari Fistcar, Wawarisa Alnu Ghifari, Fikri Habibi, Hida Jaya Habieb, Ahmad Basshofi Handoko, Siswo Hasyim, Nur Cholik Hendri Hermawan Heppy Kristijanto Heppy Kristijanto Hera Widyastuti Hidajat Sugihardjo I Gusti Putu Raka Ima Defiana Indra Komara, Indra Irawan, Djoko Istiar Januarti Jaya Ekasaputri Killian Casey Wisman Krisdianto, Johanes M. Farid Nurul Iman Mahendra Andiek Maulana Maheswari Dinda Radito Martheana Kencanawati Masahide Matsumura Masiran, Hidayat Soegihardjo Maulana, Mahendra Andiek Maulana, Mahendra Andiek Mohamad Bagus Ansori Mohamad Ibrahim Zaed Ammar Muchlis, Nurfahmi Muhamad Fauzan Akbari Muhamad Fauzan Akbari Muhammad Ali Rofiq Muhammad Anhar Prakoso Nadia Jasmine Setianty Simanjuntak Nadjadji Anwar Nadjadji Anwar Nur Azizah Affandy Prasetya, Dwi Prastyanto, Catur Arif Prayoga, Dimas Prayoga Priyo Suprobo R. Amalia, Aniendhita Radityo Anggoro Radityo Anggoro, Radityo Rahma Dhana, Rio Raka, I Gusti Putu Redha Sadhu Leksono Refani, Afif Navir Rio Rahma Dhana Riski Purwana Putra Rufi'i Sari, Putu Tantri Kumala Sasmita, Ginanjar Eka Septiarsilia, Yanisfa Shelvy Surya Sylvya Anggraini Tavio, Tavio Triwulan Triwulan Umboro Lasminto Wahju Herijanto Wahyu Setyawan Wardoyo, Wasis Wardoyo, Wasis Wildan Pramadistya Rifliansah Wilson Meynerd Rafael, Jusuf Yanisfa Septiarsilia Yhona Yuliana Yohanes Duran Yusop, Zulkifli Yuyun Tajunnisa Zulis Erwanto