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All Journal Jurnal Konstruksi
Intan Nuriskha Rachma
Institut Teknologi Garut
Civil Engineering, Building, Construction & Architecture

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Perbandingan Pushover dan Pengujian Siklik pada Coupling Beam dan Link Geser dalam Struktur Baja Intan Nuriskha Rachma; Eko Walujodjati
Jurnal Konstruksi Vol 21 No 2 (2023): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.21-2.1333

Abstract

The concept of earthquake resistant buildings is based on the yield mechanism in one element. In the steel frame structure core system, the coupling beam functions as an earthquake energy dissipation element where yielding is planned. However, if these elements are damaged, repair costs will be high and the process will disrupt building activities. Considering these conditions, the coupling beam element was developed by adding a sliding link. The yield mechanism is transferred to the link element while the coupling beam remains elastic. Numerical and experimental studies were carried out to review the yielding behavior that occurs in the link and coupling beam elements. The sub-assembly consisting of the column, coupling beam and shear link WF150x75x6x8 was tested under cyclic loading in accordance with AISC 341-10. Numerical analysis is carried out using a pushover method where parameters related to the non-linear properties of each sub-assembly are designed based on the provisions of FEMA-356. The pushover and experimental analysis results show that yielding can be maintained in the link. Cyclic testing on the Sub-assembly produces plastic rotation of the shear link of 0.17 radians without causing damage to the column and coupling beam. The first yield in the pushover analysis occurred at a force of 180.9 kN, while the experimental results occurred at a loading of 157.04 kN. Cyclic testing shows an increase in shear capacity of 7% from the results of the pushover analysis.
Analisis Geser pada Balok Komposit Kayu Kamper Laminasi Baut Perekat-Beton Bertulang dengan Perkuatan CFRP Pamella M Sri Rezeki; Intan Nuriskha Rachma
Jurnal Konstruksi Vol 21 No 2 (2023): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.21-2.1398

Abstract

The cross-sectional dimensions of wood are limited because they experience swelling and shrinkage, so to obtain large wood dimensions, one way to do this is lamination. Laminated wood beams are combined with reinforced concrete plates to produce a structural form where the wood is protected by a concrete plate. The wood lamination system in this research uses adhesive bolts with Carbon Fiber Reinforced Polymer (CFRP) as external reinforcement. The test beam consists of a normal beam without reinforcement (BLN-00) and a test beam with external reinforcement with a CFRP layer (BLF-01). This research was carried out experimentally using the Displacement Control method. The test beam was loaded with a monotonic static concentrated load in the middle of the span with a constant speed of 0.05 mm/s until failure. The results showed that the normal test beam without reinforcement (BLN-00) had a strength of 52.43 kN, stiffness of 7.06 kN/mm, and ductility of 13.42. Meanwhile, the beam with CFRP reinforcement (BLF-01) has a strength of 65.81 kN, stiffness of 9.33 kN/mm, and ductility of 16.85. Apart from that, the maximum shear stress value that occurs in normal beams is 4.23 MPa and in beams with CFRP reinforcement it is 1.95 MPa.
Co-Authors Eko Walujodjati Pamella M Sri Rezeki