Pengaruh Pengekangan Terhadap Kapasitas Interaksi P-M Tiang Pancang Prategang

Suryadiinata, Putu Ogi (2023) Pengaruh Pengekangan Terhadap Kapasitas Interaksi P-M Tiang Pancang Prategang. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Diagram interaksi aksial-lentur (P-M) sangat diperlukan dalam merancang tiang pancang spun pile. Dari diagram tersebut dapat diperoleh kapasitas penampang terhadap beban aksial dan momen berdasarkan hasil analisis penampang yang diperoleh dari distribusi regangan dan tegangan. Pembuatan diagram interaksi umumnya memerlukan perhitungan trial and error garis netral secara manual yang membutuhkan waktu lama. Oleh karena itu, pembuatan program bantu yang lebih cepat dan akurat dikembangkan menggunakan MATLAB. Pengekangan dapat merubah bentuk kurva tegangan regangan beton, dilihat dari bertambah besarnya tegangan tekan pada balok (Cc) pada saat regangan ultimate tertentu. Dengan memperhitungkan efek pengekangan, maka regangan ultimate akan meningkat sehingga menghasilkan struktur yang lebih daktail. Model pengekangan yang digunakan meliputi metode Mander dkk (1988), metode El- Dash dan Ahmad (1995), serta metode Kusuma dan Tavio (2008). Variasi yang ditinjau meliputi pengaruh gaya prategang, jarak pengekangan, serta pengaruh luasan tulangan pengekangan. Hasil varisasi dari pengekangan mempengaruhi hasil dari daktilitas kurvatur penampang. Daktilitas kurvatur akan meningkat bila jaral/spasi spiral makin rapat atau luasan tulangan pengekangan bertambah
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The axial-bending (P-M) interaction diagram is indispensable in designing spun pile piles. From this diagram it can be obtained the cross-sectional capacity against axial loads and moments based on the cross-sectional analysis results obtained from the distribution of strain and stress. Making interaction diagrams generally requires trial and error calculations of the neutral line manually which takes a long time. Therefore, faster and more accurate programming was developed using MATLAB. Restraint can change the shape of the concrete stress-strain curve, seen from the increase in the compressive stress on the beam (Cc) at a certain ultimate strain. Taking into account the confinement effect, the ultimate strain will increase resulting in a more ductile structure. The restraint models used include the Mander et al. (1988) method, the El-Dash and Ahmad (1995) method, and the Kusuma and Tavio (2008) method. The variations studied include the effect of prestressing force, restraint distance, and the effect of confining reinforcement area. The resulting variability of restraint affects the yield of the section curvature ductility. The curvature ductility will increase if the spiral spacing is denser or the area of confinement reinforcement increases

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Interaksi P-M, tiang pancang, tulangan, stress-strain, daktilitas, curvature, ductility, spiral, spun pile, transverse reinforcement.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA645 Structural analysis (Engineering)
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22101-(S2) Master Thesis
Depositing User:	Putu Ogi Suryadinata
Date Deposited:	07 Feb 2023 01:23
Last Modified:	07 Feb 2023 01:23
URI:	http://repository.its.ac.id/id/eprint/96278

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