Pemodelan Metode Elemen Hingga Balok Beton Bertulang dengan Perkuatan CFRP (Carbon Fiber Reinforced Polymer) yang Dikenai Lentur dan Geser
https://doi.org/10.58466/rigid.v4i1.1759
Kata Kunci:
Balok beton bertulang, CFRP, Abaqus Student Edition 6.14Abstrak
Balok beton bertulang sebagai elemen struktur yang didesain untuk dapat menahan beban yang bekerja. Beban yang melebihi kapasitas penampang balok, akan mengakibatkan kegagalan balok dalam menahan beban lentur maupun geser. Pada analisis ini, balok dengan dua titik pembebanan menggunakan CFRP (Carbon Fiber Reinforced Polymer) sebagai perkuatan terhadap kapasitas lentur dan geser. Pemodelan dilakukan dengan bentuk tiga dimensi, menggunakan program Abaqus Student Edition 6.14. Ada tiga bagian dalam analisis yaitu elemen solid delapan titik (balok), elemen shell (CFRP), dan elemen truss (tulangan), dengan menggunakan konsep embedded element dan tie fuction. Langkah-langkah yang harus dilewati dalam proses analisis yaitu pre processing, Simulasi dan post processing. Hasil analisis Abaqus Student Edition 6.14 dengan hasil experimental yang dilakukan oleh orang lain, bahwa balok beton bertulang yang diberi perkuatan CFRP yang dikenai lentur maupun geser, tidak menunjukkan perbedaan selisih nilai yang signifikan. Balok yang dikenai lentur memiliki selisih nilai, yaitu: tipe R1= 8,197 %; R2 = 1,443 %; R3 = 1,393 %; EBR_M 1 lapis = 4,360 %; EBR_M 2 lapis = 2,390 %; dan EBR_M 3 lapis = 0,115 %. Sedangkan balok yang dikenai geser memiliki selisih nilai, yaitu: tipe A10_R = 0,199 %; A10_S = 22,055 %; A10_M = 0,770 %; A12_R = 0,429 %; A12_S = 39,546 %; A12_M = 21,421 %; B10_R = 10,781 %; dan B12_R = 8,322 %
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