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PENGARUH KETINGGIAN PIER JEMBATAN TERHADAP PERILAKU KEDALAMAN JEPIT GROUP FONDASI TIANG BOR AKIBAT PUSHOVER ANALISIS
Abstract
Penelitian ini membahas perilaku respon tiang fondasi terhadap ketinggian pier akibat beban pushover analisis. Dalam penelitian ini dilakukan peninggian kolom pier dengan kekakuan (EI) tetap, dan peninggian kolom pier dengan memvariasikan nilai EI. Dengan variabel-variabel yang telah ditentukan, dilakukan analisis pushover pada struktur jembatan, dan dianalisis perilaku grup fondasi tiang bor akibat beban pushover. Penelitian ini menggunakan analisis nonlinear finite elemnet dengan menggunakan program Midas Civil guna menganalisis struktur jembatan dan program FB-Multipier guna analisis respon tiang fondasi. Dengan memepertahankan nilai EI pada tiap ketinggian, mendapatkan gaya geser dasar tiang pier mengecil pada setiap bertambahnya ketinggian. Sedangkan dengan melakukan variasi nilai kekakuan EI, mendapatkan gaya geser dasar yang relatif sama besarnya pada tiap-tiap ketinggian. Nilai kekakuan EI yang tetap, tidak memengaruhi nilai kedalaman jepit tiang. Sedangkan nilai variasi kekakuan EI, memengaruhi dari nilai kedalaman jepit tiang fodasi.
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DOI: https://doi.org/10.24853/jk.12.2.174-183
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