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Wisnumurti Wisnumurti
Brawijaya University
Civil Engineering, Building, Construction & Architecture

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Studi Eksperimental: Perilaku Siklik Anticompression Split-K Braced Steel Frame Oksa Eberly; Sri Murni Dewi; Wisnumurti Wisnumurti
Rekayasa Sipil Vol 14, No 2 (2020)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2020.014.02.9

Abstract

This paper presents an experimental study on the behaviour of a braced steel frame with a proposed system: anticompression brace system (ABS) subjected to cyclic lateral loads. The ABS is proposed to deal with common brace buckling problems. In the study, split-K braced steel frames: with ABS and with ordinary brace system (OBS) were used as speciments. Cyclic loading tests were conducted to evaluate the performance of the proposed system in preventing the brace to buckle and to obtain the behaviour of the frame with ABS compared to the frame with OBS under cyclic quasistatic loading. From the cyclic tests, it was observed that the proposed system worked in preventing the braces to buckle, hence, the aimed state, “buckling prevention” was achieved. The results of the study also show that the frame with ABS had a lower initial stiffness compared to the frame with OBS, nevertheless, after exceeding drift ratio of 0.85% based on raw data or 0.64% based on fitted-curves, the frame with ABS exhibited good behaviour through lower degradations in stiffness and cyclic strength relative to the frame with OBS that experienced sudden and greater degradations. 
ENVIRONMENTAL IMPACT EVALUATION ON CONSTRUCTION MATERIALS WITH THE INTEGRATION OF BUILDING INFORMATION MODELING (BIM) AND LIFE CYCLE ASSESSMENT (LCA) Riska Ayu Febriyani; Indradi Wijatmiko; Wisnumurti Wisnumurti
Rekayasa Sipil Vol. 15 No. 2 (2021)
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.2021.015.02.1

Abstract

Technological developments, especially in the construction sector, have developed rapidly. The construction industry is one of the activities that consume energy, resources, and affects the environment. Therefore it is important to increase innovation and solutions to achieve sustainability standards. Several efforts were made to maintain environmental sustainability against global problems, namely the selection of building materials through an analysis of the impact of building materials on the environment called a Life Cycle Assessment (LCA). In this study, two types of curtain wall system materials, type (A), reinforced concrete, final coating, and type (B) brick, reinforced concrete, ceramic, and mortar will be compared. The method used in the completion of this research is a full building supply system in one way, namely the collaboration between Autodesk Revit and Tally which will then be analyzed again. The first step is to determine the type of material by calculating the total material requirements to be used or by modeling the building using Autodesk Revit. From the total volume of material that will be analyzed the impact of the building life cycle based on ISO 14040. The final objective of this research is to get the best alternative from the second material above. The results of the analysis supported the type (B) material which has a smaller effect than the type (A) material on the main environment that regulates global.
CRACKING STUDY OF ONYX WASTE PRECAST CONCRETE PANEL WHICH THE SURFACE IS FINISHED WITH 4MM THICKNESS GRINDING Danang Hadi Nugroho; Edhi Wahyuni Setyowati; Wisnumurti Wisnumurti
Rekayasa Sipil Vol 15, No 3 (2021)
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

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Abstract

This research is a continuation of a series of research on Tulungagung onyx waste. The large volume of onyx waste in the area around the Tulungagung onyx processing plant is used as a substitute for gravel aggregate in the concrete mixture which is processed into exposed concrete which has high aesthetic value. In this study, a finishing treatment process (panel thickness thinning) was carried out which aims to produce coarse aggregates from the walls of the onyx concrete waste panels as exposed concrete which has high aesthetic value. The researcher wanted to know the cracking behavior of the onyx concrete waste panel walls before and after the finishing process. The test object used is the test object of previous researchers, namely the wall of the onyx waste concrete panel size 80 cm x 40 cm x 6 cm with practical steel reinforcement Ø6 - 100 mm attached, so that in this study the researcher only carried out the finishing treatment of panel thickness thinning, in-plane three-point loading test and took data on the cracks that occurred. The result of the finishing process by grinding of 2 mm shows that the percentage of aggregate is seen on average 1.8% of the total surface area, while for the finishing of 4 mm it shows that the percentage of aggregate is seen on average 35%. No initial cracks were found on the surface of the specimen after grinding 2 mm or 4 mm. The cracks experienced after loading were flexural cracks, where all the samples had only one crack in the direction almost perpendicular to the panel axis. The bending stress that occurs in the panels during the initial cracking of the non-grinding panels, 2 mm grinding panels, 4 mm grinding panels is 4.75 MPa, 4.62 MPa, 4.60 MPa respectively.
ANALYSIS OF MASONRY BEHAVIOR ON NON-ENGINEERED HOUSE BUILDING TOWARDS LATERAL DEFORMATION BY USING FINITE ELEMENT METHOD BASED ON GUIDELINE SRI HENY HIDAYATI; Agoes Soehardjono; wisnumurti wisnumurti
Rekayasa Sipil Vol. 17 No. 1 (2023): Rekayasa Sipil Vol. 17 No. 1
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.2023.017.01.10

Abstract

This study is based on the abundant damaged house building during the earthquake. Wall is an important part of a non-engineered house. It is constructed by clay bricks and mortar. The damage happened to the house building is not separated from the specification of the clay bricks used. Dynamic simulation towards the non-engineered construction would reveal the displacement value that happened to the structure of mansory that applies the guidelines from SNI, ACI, and condition in the field. The dynamic simulation of an ordinary non-engineered house employed finite element method. The purpose of this research is to find out the mechanical performance of the mansory when the earthquake is occurring. The method implemented in this research is scientific analysis through collecting the available theories and data from the previous research. A scientific method is started with deciding a concept based on the events frequently and generally happened in the field which are also considered a novelty. The following step is conducting data analysis by using finite element method where the maximum deformation displacement value reached ux 0.008 cm, uy 0.044 cm and uz 0.008 cm. From the simulation it can be concluded that the biggest displacement happened to mansory constructed based on the field condition.
Co-Authors Agoes Soehardjono Edhi Wahyuni Setyowati Indradi Wijatmiko Nugroho, Danang Hadi Oksa Eberly Riska Ayu Febriyani SRI HENY HIDAYATI Sri Murni Dewi