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Analisis Perbandingan Rencana Anggaran Biaya (RAB) Metode Konvensional Dengan Metode Building Information Modeling (BIM) (Studi Kasus Gedung 3 Lantai Di Yogyakarta) Fahrizal Fitriono; Zainul Faizien Haza; M. Afif Shulhan
Surya Beton : Jurnal Ilmu Teknik Sipil Vol. 7 No. 1 (2023)
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Muhammadiyah Purworejo

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

Abstract

Seiring dengan perkembangan zaman, industri di bidang infrastruktur berkembang sangatlah cepat dan pesat, hal itu juga dibarengi dengan kemajuan teknologi yang semakin maju dan berkembang, akibatnya menuntut para penyedia jasa konstruksi untuk memanfaatkan kemajuan teknologi agar perkerjaan kontstruksi bisa lebih tepat, cepat, efektif, efisien dan akurat. Penelitian ini dilakukan untuk mengetahui hasil dari perbandingan perhitungan Rencana Anggaran Biaya (RAB) menggunakan metode Konvensional dengan metode Building Information Modelling (BIM). Hasil yang di dapat dari perbandingan volume beton dan tulangan metode Building Information Modelling (BIM) lebih rendah dari metode Konvensional dengan selisih volume beton dan tulangan yaitu berturut – turut 13,91 m3 dan 3.107,98 kg, dengan persentase perbandingan volume beton 4% dan volume tulangan 3%. Perbandingan biaya kebutuhan beton dan kebutuhan tulangan metode Building Information Modelling (BIM) lebih rendah dari metode Konvensional dengan selisih biaya kebutuhan beton dan tulangan yaitu berturut – turut Rp 14.320.282,04 dan Rp 36.537.806,58, dengan persentase perbandingan biaya beton 4% dan biaya tulangan 3%. Perbandingan Rencana Anggaran Biaya (RAB) total perhitungan menggunakan metode Building Information Modelling (BIM) lebih rendah dari metode Konvensional dengan selisih yaitu Rp 50.858.088,63 (Lima Puluh Juta Delapan Ratus Lima Puluh Delapan Ribu Delapan Puluh Delapan Koma Enam Puluh Tiga Rupiah) atau selisih 3%.
Experimental Study Of Installation Of Non Centric Light Steel C Profile On Light Steel Beam Frame Anggun Febri Ardani; Dewi Sulistyorini; M Afif Shulhan
Journal of Green Science and Technology Vol 3 No 2 (2019): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v3i2.2383

Abstract

Light steel is one of materials that support the growth of construction technology at this time and it is generally used on roof truss contruction. The profile of light steel is a kind of steel profile which has dimension of thickness that is relatively thin with ratio of wide dimension of each profile element towards its huge thickness. In the assembling and installation, roof truss of light steel which is often encountered, cross section of C profile is connected by attaching body parts of two profiles or connecting wing parts with giving the connecting canal.This research uses the experimental method by flexural test with two points loading. The light steel which is used in this reserach is light steel of C profile by Ton Dong brand. The size is 75 x 35 x 0,75 mm andthe dimensions of beam frame specimenis 180 cm lengthand 25 cm hight, as many as 3 specimens with non centric profile overview. The research result shows that the average value of flexural strength is5,25 kNand the average of tensile strenght is 2281,67 N, while the result of experimental test uses UTM (Universal Testing Machine), the maximum strength is 5,92 kN and deflection 38,95 mm. The result of SAP 2000 analysis, the maximum deflection is 2,04 mm and 6 kN load. Keywords : Light steel of C profile, Light steel beam frame, Test of flexural stength.
LOW CARBON CONCRETE: CEMENT REPLACEMENT UTILIZING FLY ASH Dimas Langga Chandra Galuh; M Afif Shulhan; Iskandar Yasin; Sukiyono Sukiyono
Journal of Green Science and Technology Vol 6 No 1 (2022): VOL 6, NO 1 (2022): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY VOL. 6 NO. 1 MARCH 20
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v6i1.6495

Abstract

Reducing the cement content in concrete is the need for environmental sustainability, as cement produces a significant carbon emission. This work aims to study the effect of partial replacement of the cement utilizing fly ash at the various percentage of substitution by investigating the physical characteristic of concrete ingredients, compressive testing at various curing age, workability, and material cost reduction. Fly ash used in this research is categorized as type F, which obtained from Jepara powerplant. Along with fly ash, ordinary pozzolan cement (OPC) from Semen Gresik used as binder material. The fine and coarse aggregates quarried consecutively from Magelang Regency and Kulon Progo Regency, Indonesia. All the constitutes being observed on specific gravity, gradation test, clay lumps content, and abrasion resistance. The job mix formula developed adopting Indonesian Standard based on the physical data obtained previously, resulting in five levels of cement replacement which is 0%, 15%,20%, 25%, and 30% compared to cementitious weight. Concrete cylinder specimen having 150 mm on the diameter and length of 300 mm, tested at various age (7,14, and 28 days) to obtained compressive strength and strength development during curing age. The current works remarks that all level of replacement obtained a good agreement with targeted compressive strength (25 MPa) at the age of 14 days. However, the more fly ash supplemented in the mixture, strength development possesses a slower rate and a slight declining on workability. Eventhough the slump value still comply with the requirement given by the Indonesian Standard.
DEVELOPMENT OF ECO-FRIENDLY MORTAR UTILIZING INDUSTRIAL WASTE M Afif Shulhan; Zainul Faizien Haza; Maris Setyo Nugroho
Journal of Green Science and Technology Vol 6 No 2 (2022): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY VOL.6 NO.2 SEPTEMBER 2022
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v6i2.6890

Abstract

Introducing alternatives material on cement-based material manufacturing is the need for environmental sustainability due to the excessive mining of sand from quarry and river bed. At the same time, industrialization headed to an uncontrollable growth of waste. This fact encourages the researcher to enhance the utilization of recycled waste in construction practice. On one side, it affords a solution for waste management, and on the other hand, it contributes to an eco-friendly construction material that minimizes the environmental impact. This paper aims to investigate the usability of the iron waste obtained from the wrought iron industry, as natural fine aggregates replacement. In particular, it focused on studying the physical characteristic of waste aggregates and the effect of partial replacement of natural sand on mortar strength. Mortar cube specimen made with various levels of replacement (0%, 10%, 20% and 30 %) and also various cement-aggregates volumetric proportion, which are 1:3, 1:4, 1:5, 1:6, and 1:7. All of the measurement parameters are taken consecutively based on ASTM norms. The current work remarks that both waste aggregates and natural aggregates reveal complete fulfillment in the aggregate requirement of ASTM standard. Furthermore, the mortar cube test confirmed that the mortar passes the strength grade for N class and O class, which suitable for the above-grade and non-load bearing application.