Abstract
The foundation design of Pengendalian Penduduk dan Keluarga Berencana is located on Jl. R.A. Kartini No. 100, Palu City, Central Sulawesi. In field testing using 2-point of (CPT), the value of hard-ground support at 8 – 9 m below the surface and the loads of building structures of 2 (two) floor buildings that work on the foundations are quite large, this is a consideration in choosing the type of used foundation. The point of this design is to obtain the dimensions of the pile foundation and calculate the bearing capacity of the foundation permit and settlement that meet the safety requirements. The calculation for bearing capacity of the foundation is calculated using (CPT) data and soil shear strength parameter data (c and tetha). Single pile is calculation by using the Semi-Empirical method and using Brooms Method for calculating lateral force on the driven piles. The dimensions of the foundation are planned based on the load (Qv) acting on the entire foundation. Calculation of bearing capacity of a single pile with a penetration depth of 8,20 m and varying dimensions are used in the planning. Based on the calculation of the bearing capacity of a single pile using (CPT) data on the load that works on the foundation, was obtained 25 cm and 30 cm diameter of pile. while the calculation uses ground shear strength parameter data (c and tetha) obtained pile diameter of 30 cm and diameter of 35 cm. Based on the calculation of the bearing capacity of a single pile, the dimensions of the foundation and the settlement in permits has reached the safety requirements.
Highlights
The foundation design of Pengendalian Penduduk dan Keluarga Berencana is located on Jl
floor buildings that work on the foundations are quite large
this is a consideration in choosing the type of used foundation
Summary
Pada perencanaan konstruksi bangunan gedung haruslah didukung oleh struktur fondasi yang kuat dan stabil sehingga mampu memikul beban dari konstruksi bangunan. Dalam penelitian ini penulis menganalisis kembali fondasi dengan menggunakan jenis fondasi dalam yakni fondasi tiang pancang pada Gedung P2KB Palu yang rencananya akan dibangun berlantai 2 (dua). Melihat kondisi fisik tanah yang beragam pada data sekunder (hasil sondir di lapangan) serta beban yang bekerja pada Gedung P2KB Palu yang berlantai 2 (dua) dianggap cukup besar. Kondisi inilah yang mendasari penulis untuk menganalisis kembali fondasi gedung tersebut dengan menggunakan fondasi tiang pancang yang dapat mencapai kedalaman tanah keras serta efisien. Adapun permasalahan yang akan di bahas, yaitu: bagaimana menganalisis dimensi tiang pancang pada Gedung P2KB Palu yang memenuhi syarat terhadap daya dukung serta penurunan yang terjadi, berdasarkan data sondir (qc dan Rf) dan data parameter kuat geser tanah c, φ dan γ hasil korelasi dari data sondir. Sondir dapat memberikan acuan untuk mendapatkan sifat mekanis tanah dan jenis tanah [8]
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