Element Size Effects in Nonlinear Analysis of Reinforced Concrete Beams Without Web Reinforcement  

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Jenis: Article from Journal - ilmiah nasional - terakreditasi DIKTI
Dalam koleksi: IPTEK: The Journal for Technology and Science vol. 19 no. 1 (Feb. 2008), page 16-23.
Topik: Concrete Beams; Finite Element; Mesh Size Effect; Tension-Softening; Tension-Stiffening

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: MM48.4 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

A new approach is developed to the nonlinear analysis of reinforced concrete beams withour stirrups subjected to a monotonically increasing loading from zero up to the ultimate load. The softening effect of concrete in tension-compression, the tension-stiffening and tension-softening of concrete in tension are all taken into account in the proposed model. The effect of finite element mesh size is investigated by applying the crack band theory (Bazant and Oh, 1983) and taking into accound the plastic strain of concrete under tension. A simple procedure for calculating the stress-strain curve of plain concrete under tension was developed and implemented into the nonlinear finite element formulation. The proposed model gives relatively good agreement with the experimental results.

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