CD Tesis

Analisis Finite Element Balok Beton Bertulang Yang Diperkuat Dengan Metode Deep Embedment

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The Deep Embedment (DE) method is a strengthening method, in which additional shear reinforcementwere installed in the core reinforced concrete beam. The purpose of this study is to analyze the shear capacity of existing reinforced concrete beams without additional shear reinforcement (embedment)andto analyze the shear capacity of reinforced concrete beams reinforced by the deep embedment method but using Abaqus software andcomparing the behavior of existing reinforced concrete beams without additional shear reinforcement and the reinforced concrete beams reinforced by the deep embedment method. The observed behaviour is the load-displacement curve, crack pattern and collapse behaviour.
This research was conducted by preparing three models of reinforced concrete beams. One specimen was a control and identified as Beam-CS, the other two specimens were specimens that were reinforced by installing three rows of reinforcement bars in the beam core (Beam-SS-3EB)andspecimens that were reinforced by installing five rows of reinforcement bars(Beam-SS-5EB).All specimens have the same dimensions and reinforcement configurations. The method carrying out in this research begins by analyzing the theoretical Response 2000 to obtain the load-displacement curve as a reference for Abaqus modeling. Next, modeling of reinforced concrete beams without strengthening (Beam-CS) wasprepared using Abaqus Software. Beam-CS was modeled in three different mesh sizes namely, 100 mm, 50 mm and 25 mm. The specimen with the mesh size of 25 mm showed the closest one to the result attained from Response 2000. Therefore, the strengthening beams were modeled with the mesh size of 25 mm. The specimen Beam-SS-3EB was strengthened with three rows of 6 mm reinforcement bars while the specimen Beam-SS-5EB was reinforced by embedding five rows of 6 mm reinforcement bars.











The results showed that the element size significantly affected the behaviour of the load-displacement curve, the load displacement curve of specimen analized using finite element (FE) with the mesh of size of 25 mm was similar to that of gained from analytical calculation using Response 2000. The maximum reaction forces for Beam-SS-3EB and Beam-SS-5EB were 30.30 kN and 31.77 kN, respectively representing 17.67% and 23.29% increase compared to that of Beam-CS. This showed that the maximum loadofstrengthened specimens were greater than the maximum loadofcontrol specimen. Furthermore, cracks pattern attained from FE analysis concluded that the control beam failed in shear while the strengthened beams failed in the combination of flexural and shear failure.


Keywords : Finite Element Model, Reinforced Concrete Beams, Strengthening, Deep Embedment Method

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

10 12. 219 (0011)

Penerbit

Pekanbaru : Universitas Riau – Pascasarjana – Tesis Teknik Sipil., 2019

Deskripsi Fisik

xi, 84 hlm.; ill.; 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

10 12. 219 (0011)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

PASCASARJANA (MAGISTER) TEKNIK SIPIL

Info Detail Spesifik

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Pernyataan Tanggungjawab

FATAH

Versi lain/terkait

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