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Desy Setyowulan
Departemen Teknik Sipil Fakultas Teknik Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Education Materials Science & Nanotechnology Physics

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The Experimental Test of Radial PE-Reinforced Polymer Pipe Under Short-Time Hydraulic Pressure Krisnawan, Bagus; Arifi, Eva; Setyowulan, Desy
Rekayasa Sipil Vol. 18 No. 3 (2024): Rekayasa Sipil Vol. 18 No. 3
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2024.018.03.8

Abstract

The resistance of thermoset polymer pipes to compressive forces is a concern in the reliability of piping infrastructure. To maintain the reliability of these piping systems, it is imperative to understand and improve the resistance of pipes. The use of polyethylene (PE) rope as Reinforce Polymer Pipe (RPP) composite material was tested with Short-Time Hydraulic Pressure to determine the stress-strain distribution as well as the durability of its mechanical properties. This study used 4mm diameter polyethylene rope arranged radially coiled inside a 40cm diameter polymer pipe with a thickness of 1cm using a mixture of Unsaturated Polyester Resin (UPR), fly ash, sand, catalys and cobalt. The test results show that the composite material has strong mechanical properties and is resistant to hydraulic compressive forces with an average deformation of 8.2 mm with an average maximum load of 33.57kN with the polymer experiencing cracks and damage but the polyethylene rope remains in good condition and has good ductile or elastic properties against compression without significant damage. The highest positive mean strain value of 0.4. The graph displays strain values that are continuously positive up to 50-100 seconds and then drop to negative values quickly indicating that the polymer pipe provides good resistance at the beginning of 50-100 seconds and then experiences damage but the pipe can still return to its original shape with damage to the polymer having an average maximum stress value of 5.23 Mpa with an average duration of 266 seconds while the lowest stress value is 3.34 Mpa.
Studi Analisis Perilaku Kolom Panjang Komposit Berongga dengan Baja Cold Formed Tipe C Ganda Rahmayani, Indah Putri; Setyowulan, Desy; Waluyohadi, Indra
Jurnal Mahasiswa Jurusan Teknik Sipil Vol. 1 No. 1 (2025): Student Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Brawijaya

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Abstract

Seiring dengan perkembangan zaman berbagai permintaan untuk kebutuhan infrastruktur juga meningkat karena kebutuhan masyarakat. Sektor konstruksi juga mengalami perkembangan dengan adanya material baja cold formed. Baja tersebut memiliki keunggulan seperti daya tahan tinggi, ringan, dan ekonomis. Penggunaannya dapat dilihat pada struktur balok maupun kolom. Analisis dilakukan pada kolom yang menggunakan baja cold formed tipe C 80x30x90x0.75 yang dibuat menyatu dengan sambungan sekrup SDS (Self Drilling Screw) berdimensi 12x20 mm dengan variasi panjang 1000 mm, 1200 mm, dan 1400 mm. Selanjutnya dilakukan komposit dengan beton dimana bagian tengah kolom akan dibuat berongga. Pembebanan dilakukan dengan pembebanan merata secara bertahap sampai benda uji tidak mampu menahan beban. Sedangkan tumpuan yang digunakan adalah tumpuan jepit. Pemodelan dilakukan menggunakan software ABAQUS. Hasil analisis menunjukkan bahwa kapasitas beban maksimum terbesar terdapat pada variasi benda uji 1000 mm. Pada material baja menunjukkan sudah mencapai tegangan dan regangan maksimum sedangkan beton belum mencapai tegangan maksimum tetapi, regangannya sudah mencapai titik maksimum. Perilaku kegagalan pada semua variasi benda uji disebabkan tekuk yang disebabkan baja cold formed yang terdistribusi ke beton. Kata Kunci: Kolom Panjang Komposit Berongga, Baja Cold-Formed, Software ABAQUS, Tegangan-Regangan, Kapasitas Beban Aksial, Perilaku Kegagalan Kolom.
Identifying Critical Success Factors in Implementing Green Building, Case Study: Medium-sized Construction Companies in East Java, Indonesia Arwani, M Hamizan Najib; Negara, Kartika Puspa; Setyowulan, Desy
ASTONJADRO Vol. 14 No. 1 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i1.16800

Abstract

The construction industry is a significant consumer of natural resources and a contributor to environmental issues and ecological instability. This has led to the emergence of sustainable programmes (green construction) which aim to minimise the impact of development projects. The objective of this study is to identify the critical success factor in implementing green construction and to the extent of familiarity among middle-sized companies in the province of East Java with the implementation of green construction projects and to ascertain the factors that affect the success of such projects. The case study subjects are four medium-sized construction companies in East Java that have experience in implementing green building projects. The data obtained will be analysed on mean using IBM SPSS software on each variable. The results will identify the top five critical success factors based on questionnaires distributed to respondents. The findings of critical success factors are as follows: Integrated planning and/or design, Adequate project funding sources (smooth payments), Classification/capabilities of implementing contractors, Effective communication among stakeholders, Competence and experience of the project manager, and last critical success factor is Applicable policies/regulations regarding green construction. These findings are expected that this research will contribute to a deeper understanding of the critical factors that influence success in implementing green construction projects.
Analysis Value Engineering at Work Apartment Building Wall Salsabila, Arna; Setyowulan, Desy; Arifi, Eva
ASTONJADRO Vol. 13 No. 1 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i1.14713

Abstract

It was Optimizing resources to analyze cost efficiency in implementing construction projects. One method that can be used for resource optimization is value engineering (VE). Value engineering (VE) as a management technique to determine the efficiency between the cost and performance of a product or project and stay on appearance, quality and maintenance. Then value engineering is applied to the construction of apartment buildings to get cost efficiencies from the initial budget planning. This study aims to determine the effectiveness of value engineering in the construction of apartment buildings, especially in-wall installations. The VE method consists of five stages: Information stage, the creativity stage, the analysis stage, the development stage, and the presentation stage. Information stage, data collection in the form of cost planning, detail engineering design, work plan and terms. Based on the data obtained, the total contract value for the apartment building is Rp. 87,328,000,000. wall installation as one of the highest cost contributors. There are two alternative recommendations, namely sandwich panel walls and precast walls. The analysis found that the sandwich panel wall has the most efficient value, namely the total RAB value of 2.5% from the initial plan.
Pengaruh Jumlah Lapisan Geopolimer sebagai Coating Agregat Kasar Daur Ulang terhadap Permeabilitas Beton Rizky Pradita Sutrisno; Arifi, Eva; Setyowulan, Desy
Jurnal Mahasiswa Jurusan Teknik Sipil Vol. 1 No. 2 (2025): Student Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Brawijaya

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Abstract

Peningkatan kebutuhan beton di Indonesia mendorong pencarian material alternatif ramah lingkungan, seperti Recycled Coarse Aggregate (RCA), untuk mengurangi dampak eksploitasi agregat alam dan limbah konstruksi. Namun, RCA memiliki kelemahan intrinsik seperti penyerapan air tinggi dan densitas rendah akibat mortar residu, yang memengaruhi sifat mekanik dan durabilitas beton. Berbagai metode perbaikan RCA telah diuji, namun seringkali belum efektif menghilangkan mortar atau menimbulkan masalah ekonomi/lingkungan baru. Penelitian ini mengusulkan pelapisan geopolimer dalam beberapa variasi lapisan (1,2, dan 3 lapisan) pada RCA sebagai solusi inovatif. Geopolimer, yang terbuat dari fly ash kelas C dan diaktifkan alkali, memiliki sifat pozzolan dan kedap air, yang dapat mengisi pori-pori RCA sehingga mengurangi penyerapan air dan meningkatkan berat isi. Hasil penelitian menunjukkan bahwa pelapisan geopolimer dapat meningkatkan kualitas agregat kasar daur ulang, meningkatkan berat isi, dan menurunkan penyerapan air. Penurunan nilai permeabilitas beton juga teramati, dengan penurunan tertinggi mencapai 46% pada tiga lapis pelapisan geopolimer.
Studi Komparatif Lebar Retak Pelat Beton Bertulang Satu Arah melalui Pemodelan Elemen Hingga dan Pendekatan Teoritis dengan Variasi Jarak Antar Tulangan Andrew Laurence; Kridaningrat, Bhondana Bayu Brahmana; Setyowulan, Desy
Jurnal Mahasiswa Jurusan Teknik Sipil Vol. 1 No. 2 (2025): Student Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Brawijaya

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Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh variasi jarak antar tulangan terhadap lebar retak maksimum pada pelat beton bertulang satu arah. Metode yang digunakan terdiri dari simulasi numerik menggunakan perangkat lunak ABAQUS dengan pendekatan Concrete Damage Plasticity (CDP), serta perhitungan teoritis mengacu pada standar SNI 2847:2002 dan JSCE 2007. Empat variasi jarak tulangan dianalisis, yaitu 540 mm, 270 mm, 135 mm, dan 77,14 mm. Hasil penelitian menunjukkan bahwa semakin kecil jarak antar tulangan, semakin kecil pula lebar retak maksimum yang terjadi. Pada variasi jarak 77,14–540 mm, lebar retak meningkat hingga 170,17% (ABAQUS), 97,62% (SNI), dan 183,45% (JSCE). Peningkatan tegangan baja dari 200 MPa ke 250 MPa juga meningkatkan lebar retak hingga 32,19% (ABAQUS), 23,79% (SNI), dan 20,71% (JSCE). Hasil ini menunjukkan pengaruh signifikan gaya tarik terhadap retak, di mana ABAQUS memberikan hasil tertinggi karena mampu memodelkan perilaku struktur secara detail, sementara SNI cenderung konservatif akibat batas maksimum jarak tulangan 200 mm. Kata kunci: Pelat beton bertulang satu arah, lebar retak, jarak antar tulangan, ABAQUS, Concrete Damage Plasticity (CDP), SNI 2847:2002, JSCE.
Structural Behavior and Performance Level of Reinforced Concrete Under the Cyclic Loads Sephanie, Dendi; Anggraini, Retno; Setyowulan, Desy
Jurnal Penelitian Pendidikan IPA Vol 11 No 3 (2025): March
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i3.10447

Abstract

This study evaluates the applicability of ASCE 41-17 and ATC-40 for assessing the performance of existing structures in Indonesia, where current regulations focus on force-based rather than displacement-based evaluation. The analysis results indicate that all displacement ratios remain below the target performance level for Risk Category 2 structures. Strength values of 1.8943 and 2.9624 for the x-axis and y-axis, respectively, were found to be lower than the maximum allowable values, confirming that the pushover analysis meets the required criteria. The formation of plastic hinges initially in beams and later in ground-floor columns validates the Strong Column–Weak Beam principle, ensuring structural ductility. The study suggests that the Pushover method can be applied to more complex structures with additional stories. Furthermore, SeismoStruct, in combination with other software, offers an efficient alternative for nonlinear static pushover analysis, optimizing computational resources. The findings highlight the potential adoption of ATC-40 and ASCE 41-17 in Indonesia’s structural assessment practices, enabling more accurate performance evaluations and enhancing seismic resilience. Future research should explore broader applications of these codes for various structural types to improve earthquake preparedness and mitigate potential risks.
The Performance of Cold-Formed Steel Beam-Column Connections with Screw Configuration Mohamed, Saker; Setyowulan, Desy; Arifi, Eva
Rekayasa Sipil Vol. 18 No. 2 (2024): Rekayasa Sipil Vol. 18 No. 2
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2024.018.02.11

Abstract

Cold-formed steel is being used as a viable substitute for traditional steel and building materials due to its performance, affordability, convenience, lightweight, and environmental friendliness. The major purpose of this current research is for a reaction to force-deformation at the connection level to be delivered, which is proper for typical cold-formed steel (CFS) screwed beam-column assembly CFS C-section, and to show the influence of the behavior of CFS under bending test. An inner plate, double angle plate, and self-drilling screws are used by a basic beam-column frame idealized CFS to join the beam-column. Fixed support was implemented at the column base, whereas the beam end had free support. A 0.75 mm cold-formed steel C-section with 80mm height and 30mm width was utilized in this study and assembled into an "I" and "box" configuration. 3d and 4d were used to compute screw spacing for self-drilling screws with 4 mm heads and 2 mm bodies. The first type was each angle plate (top and seat angle) screwed with eight screws, whereas the second involves four screws. The CFS section’s thinness led to the use of screw connections, which are essential to their ability to withstand connection failures, to anticipate the failure mode of the connection segment. Numerical simulation by ABAQUS Student Edition and analytical studies have been conducted by AS/NZS 4600:2018 to investigate the capacity of CFS under bending. Quantity and the arrangement of the screws determine the displacement ductility with tighter spacing enhancing performance and reinforcing global and local buckling resistance.
Co-Authors Abdillah, Hilmi Achfas Zacoeb Adi Julianto Adikasih, Prima Agoes Soehardjono M. D. Ahmad Badiuzzamani Al Raes, Sulaiman Andhareshi, Farly Andrew Laurence Andrina Prafika Ariani Anggara, Rizal Tri Anugerah Nurtjahja, Edwardo Pradana Aprillinda, Sylvia Ardiansyah, Jery Ari Wibowo Ari Wibowo Arwani, M Hamizan Najib Astuti, Kamiliyana Puteri Badiuzzamani, Ahmad Beto Edward Sufian Bria Seran, Rey David Chiquita, Theadeira Coritsa, Agatha Leonie Daniel Dandi Wicaksono Devarian, M Fajar Devi Nuralinah Devi Nuralinah Devi Nuralinah Dhiya Ulhaq Al Hanif Muhsin Eva Arifi Eva Arifi, Devi Nuralinah, Fadhila Nur Azizah Fadly, Hendra Fanani, Yafriel Izza Farid, Muhammad Fathurrohman, Muhammad Fernando Julian Firdausy, Ananda Insan Gabrielle Pramesti Cahyaning Ramadhani Giovanni, Christoper Houston Hidayatullah, Billy Wijaya Ibady, Azka Fardany Ichlas Yusamal Septiawan Ihza Mahendra, Mochamad Gusti Ikhsan, Erika Ainun Zakinah Indra Waluyohadi Indra Waluyohadi Indra Waluyohadi, Indra Insani, Muhammad Hanif Iqbal, Faishal Iqbal, Muhammad Jiwanggono, Nicolas Aldo Juniarty, Elliana K, N V Karina Cahyaning Cahyaning Rosita Kartika Puspa Negara Kridaningrat, Bhondana Bayu Brahmana Krisnawan, Bagus Kristopher, Fredo Lilya Susanti Lilya Susanti M. Taufik Hidayat Melindasari, Elfira Ming Narto Wijaya Mohamed, Saker MUHAMMAD RIZKY Muhammad Rizky Ananda Mulifandi, Alfian Wildan Nur Rizqi, Mohammad Radja Nurfintasari, Ayu Febrianti Pahlawan, Darni Mulia Paramita, Riezka Prilly Pawitrama, Nyoman Iswarya Pradana, Egi Prasetyo, Faishal Dwi Prastumi Prastumi Prihanto, Aris Dwi Puspitasari, Isnana Putri Patricia Putri, Herawati Dewi Putri, Nanda Kartika Rahmayani, Indah Putri Ramadhania, Indah Zakia Retno Anggraini Retno Anggraini Revani, Winona Putri Ristinah Ristinah Rizky Pradita Sutrisno Roland Martin Simatupang Salsabila, Arna Satria Nugraha, Cosmas Yudha Saulina Situmorang, Gracesella Novita Sephanie, Dendi Shella Amalia Ramadhani Siti Nurlina Sri Murni Dewi Sri Murni Dewi, Hendro Suseno, Tatang Fendy Harianto, Sucipto, Nugroho Adi Syafii, Yusuf Achmad Timur, Shella Kartika Toruan, Andre Wirakusuma Tyarpratama, Marsa Achadian Wicaksono, Armanda Wisnu Wisnumurti .