ANALISA PERBANDINGAN HASIL PENGUJIAN LABORATORIUM DAN SIMULASI PADA BALOK BETON BERTULANG
Abstrak
Perilaku balok beton bertulang sangat penting dalam desain struktur. Beberapa kegagalan yang terjadi pada balok dikarenakan penulangan balok tidak terpasang seperti prosedur perencanaan/ desain, masalah ini dapat menimbulkan kegagalan pada struktur. Mengetahui perilaku struktur balok akibat beban yang diberikan dapat membantu memprediksi kekuatan balok struktural dan kenyamanan struktur yang direncanakan. Untuk mengetahui dan memprediksi kekuatan dan kenyamanan struktur balok beton bertulang akibat beban yang diterima maka dilakukan uji eksperimental dan simulasi. Simulasi VecTor2 digunakan untuk memprediksi gaya geser, retak, dan perpindahan pada balok beton bertulang saat diterapkan beban displacement. VecTor2 mempertimbangkan pengaruh/ efek ikatan antara tulangan longitudinal terhadap beton (bond stress-slip effect). Bond stress-slip effect (0.139) memberikan pengaruh yang cukup besar terhadap kekuatan dan respon histeris balok beton bertulang. Oleh karena itu penelitian ini juga mengkaji pengaruh dari tegangan efek bond-slip pada beton bertulang. Dari hasil pengujian dan simulasi yang dilakukan diperoleh rasio perbandingan untuk load capacity berkisar antara 1.00-1.095 dan pola retak membentuk sudut 45Ëš. Seluruh hasil simulasi VecTor2 dengan menggunakan efek bond-slip akan dibandingkan dengan hasil pengujian eksperimen untuk melihat perilaku dan akurasi simulasi.
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