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Dualembang, Hery
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Journal : Jurnal Teknik Sipil dan Teknologi Konstruksi

 1 
PERILAKU SAMBUNGAN BALOK I DAN KOLOM TABUNG BAJA AKIBAT BEBAN SIKLIK Hery Dualembang; Muslikh Muslikh; Andreas Triwiyono
Jurnal Teknik Sipil dan Teknologi Konstruksi Vol 7, No 2 (2021): Jurnal Teknik Sipil & Teknologi Konstruksi
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (756.524 KB) | DOI: 10.35308/jts-utu.v7i2.3926

Abstract

Using Concrete-Filled Steel Tube (CSFT) as a column component provides many advantages over steel columns and reinforced concrete columns. Steel tube serve as reinforcement as well as formwork for concrete filler material. Besides, restrain effect of steel tube prevent crack in the concrete. The concrete-filler on steel tube prevent local buckling and increases the strength and stiffness of the column. The lack of experience and complexity of the beam-column connection system becomes an obstacle to use the CFST as a column. In addition, strength and stiffness of the connection system on CFST should be sufficient to endure the earthquake loads. This research purpose to find alternate connection of CFST column beams and also to know hysterestis behavior, strength, stiffness and pattern of connection collapse due to cyclic loading. There are two specimens in this research, continuous joint of beam-column steel tube with concrete filler (BKM-T) and continuous joint of beam-column steel tube without concrete filler (BKM-K).  BKM-K as a comparator to show an increasing strength and stiffness due to the concrete core. Load cycle of specimens refer to ACI 374.1-05. The test results showed the average maximum load (Ppeak) of 32.59 kN on BKM-K increased to 34.08 kN on BKM-T. Elastic stiffness (Ke) at BKM-K of 0.78 kN/mm increased to 1.08 kN/mm on BKM-T. BKM-T also has a larger hysteretic loop than BKM-K. In addition, BKM-K and BKM-T adequate the strong column weak beam criteria with partial ductility.
Analisa Erosi dan Sedimentasi Di Hilir Kali Acai Guna Mencegah Daya Rusak Air Deliana Mangisu; Hery Dualembang
Jurnal Teknik Sipil dan Teknologi Konstruksi Vol 9, No 1 (2023): Jurnal Teknik Sipil dan Teknologi Konstruksi
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jts-utu.v9i1.7093

Abstract

The characteristics of the watershed (DAS) have an influence on the size of the discharge, erosion, and sediment in a watershed. Erosion is the process of wearing away topsoil by water or wind. The rate of erosion and sedimentation that occurs is often caused and influenced by climate, soil, topography, plants, land use, human activities, river hydraulic characteristics, and cross-sectional characteristics. The purpose of this study is to obtain information on the magnitude of erosion and sedimentation per unit area in the Acai River. The methods used for this research activity are primary and secondary data analysis methods, using the tools of the ArcGis, and Hecras programs and manual observations and measurements in the laboratory to obtain sedimentation values and shear stresses. The results obtained based on the observations and analysis carried out, the erosion rate using the USLE method was 110.90 tons/ha/year, the peak flood discharge was 18.64 m3/s (Q10) which could not be accommodated by the Acai River and the amount of sedimentation per unit area in the study location for the downstream area is 84,564,439 tons/ha
EVALUASI KINERJA DAN RENCANA PERKUATAN RANGKA ATAP GEDUNG GEREJA KATEDRAL JAYAPURA PASCA GEMPA JAYAPURA 2023 Dualembang, Hery; Paseru, Riswandy Loly
Jurnal Teknik Sipil dan Teknologi Konstruksi Vol 11, No 1 (2025): JURNAL TEKNIK SIPIL DAN TEKNOLOGI KONSTRUKSI
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jts-utu.v11i1.12141

Abstract

The majority of areas in Indonesia, such as the city of Jayapura, are categorized within zones of moderate to high seismic intensity. On February 9, 2023, a 5.4 magnitude earthquake hit Jayapura, resulting in damage to various structures, including the Cathedral Church. Assessments conducted after the earthquake revealed structural issues, including cracks in walls and significant deflection in the roof truss system. From the structural assessment of the current roof, it was determined that eleven truss elements had failed, and every rafter showed deflection surpassing the permissible limit of L/240. The reinforcement involved steel elements and created a Cremona truss framework with WF 250.125.6.9 and UNP 75.40.5 profiles. Connections were established with chemical anchors and endplates between the steel profiles and 30×50 cm concrete beams, along with welded joints linking the steel elements. Evaluation results indicated that the enhanced structure achieved a secure performance level and complied with applicable, especially SNI 1729:2020 for structural steel design. This situation emphasizes the significance of evaluating buildings after an earthquake and implementing specific reinforcement strategies to regain structural stability and safety.Keywords— steel, performance evaluation, earthquake, reinforcement.
Co-Authors Andreas Triwiyono Deliana Mangisu Duha Awaluddin Kurniatullah Eka Priska Kombong Lie, Rahmat Tatayo Muslikh Muslikh Riswandy Loly Paseru Sanggamele, Herlina Wayangkau, Helen Giandita widyastuti, ira Wika Matana Nion