Foundation is part of an engineering system which forwards the load supported by the foundation and its own weight into underneath the rock and the soil.Based on technical aspects and implementation it can be classified into pile and bore pile.Based on number piles divided into single pile and group piles.Group pile is a group of piles structured relatively close and connected with the pile cap at the top. Because of enhancement of earthquake acceleration on certain area on SNI 1726:2012, Analysis of group pile is needed on area with enhancement of earthquake acceleration. The collection data method is obtained by collecting data from the project by form bore log and laboratory test meanwhile for data analysis method using basic theory used as a reference for learning pushover analysis which refers fom ATC-40. By doing pushover analysis on a group pile, Performence of group pile can be known as Performence Point which will be compared to each of the pile configurations. And the result from this research is more the number of piles on the configuration being modeled, the result is the value of performence point getting higher, because of the lateral force will be tested be more higher. AbstrakFondasi ialah bagian dari suatu sistem rekayasa yang meneruskan beban yang ditopang oleh fondasi dan beratnya sendiri ke dalam tanah dan batuan yang terletak di bawahnya. berdasarkan segi teknis pelaksanaan dapat diklasifikasikan menjadi tiang pancang dan tiang bor. Berdasarkan jumlah tiang ada dua macam yaitu tiang tunggal dan tiang kelompok, tiang kelompok adalah sekumpulan tiang yang dipasang secara relatif berdekatan yang dihubungkan bagian atasnya dengan pile cap. Karena adanya peningkatan percepatan gempa di daerah tertentu pada SNI 1726:2012, perlu dilakukan analisis terhadap kelompok tiang di daerah yang terkena peningkatan percepatan gempa. Metode pengumpulan data dilakukan dengan mengumpulkan data-data yang berasal dari proyek berupa hasil boring log dan hasil tes laboratorium sedangkan untuk Metode analisis data digunakan teori dasar yang digunakan sebagai acuan pembelajaran dalam melakukan analisis Pushover yang mengacu pada ATC-40. Dengan melakukan analisis pushover pada suatu kelompok tiang, tingkat kinerja suatu kelompok tiang dapat diketahui berupa nilai Performance Point yang akan dibandingkan setiap konfigurasi tiang. Dan hasil yang didapat dalam penelitian ini adalah semakin banyak jumlah tiang dalam konfigurasi yang dimodelkan maka nilai performence point pun semakin tinggi, karena gaya lateral yang diuji akan semakin tinggi.
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