Studi Perumusan Lendutan Pada Struktur Flat Plate Akibat Beban Gravitasi

Triastutik, Rina Studi Perumusan Lendutan Pada Struktur Flat Plate Akibat Beban Gravitasi. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 3104100088-Undergraduate_Thesis.pdf Restricted to Repository staff only Download (12MB)

Abstract

Struktur flat plate merupakan struktur yang memiliki beberapa kelebihan, yaitu ekonomis, memiliki nilai arsitektural, dan sederhana. Perancangan dan perilaku struktur flat plate harus memperhatikan kemampuan struktur dalam menerima beban gravitasi.Salah satu kelemahan struktur flat plate yang perlu diperhatikan adalah lendutan yang terjadi akibat beban gravitasi, karena tidak terdapat balok yang berfungsi sebagai penopang pelat lantai. Analisis terhadap lendutan sering kali mengalami penyimpangan dan menghasilkan nilai yang kurang akurat. Beberapa rumusan untuk menghitung lendutan yang telah diusulkan antara lain oleh Kripanarayanan dan Branson (1976), Rangan (1986), dan Ghali (1989).Dari hasil studi ini, dapat disimpulkan bahwa perhitungan lendutan menggunakan rumusan Kripanarayanan dan Branson kurang akurat karena nilai yang dihasilkan masih jauh dari hasil pengukuran di lapangan, meskipun hasilnya sudah konsisten. Rumusan Rangan juga kurang akurat karena selalu menghasilkan nilai lendutan yang overestimated, sehingga menyebabkan perencanaan struktur menjadi terlalu boros. Sementara itu, rumusan Ghali sudah cukup baik dalam memprediksi lendutan, tetapi hasilnya kurang konsisten. Berdasarkan evaluasi statistik, penulis mengusulkan rumusan modifikasi yang didasarkan pada rumusan Kripanarayanan dan Branson dengan melibatkan pengaruh momen inersia (I) untuk menghitung lendutan yang terjadi. Rumusan baru ini menghasilkan prediksi lendutan yang lebih akurat dibandingkan dengan ketiga rumusan yang telah diusulkan sebelumnya.
=====================================================================================================================================
A flat plate structure is a structural system that offers several advantages, including economy, architectural appeal, and simplicity. The design and behavior of flat plate structures require careful consideration of their ability to withstand gravity loads.One of the weaknesses of flat plate structures that needs to be considered is deflection caused by gravity loads, as there are no supporting beams beneath the floor slabs. Deflection analysis often produces deviations and inaccurate results. Several formulations for predicting deflection have been proposed in the literature, including those developed by Kripanarayanan and Branson (1976), Rangan (1986), and Ghali (1989). Based on the results of this study, it can be concluded that the deflection calculations using Kripanarayanan and Branson's formulation are less accurate because the predicted values differ considerably from field measurements, although the results are relatively consistent. Rangan's formulation is also less accurate because it consistently overestimates deflection, resulting in uneconomical structural designs. Meanwhile, Ghali's formulation provides reasonably good deflection predictions but lacks consistency.Based on the statistical evaluation, the author proposes a modified formulation derived from Kripanarayanan and Branson's formulation by incorporating the influence of the moment of inertia (I) to calculate deflection. The results indicate that the proposed formulation predicts deflection more accurately than the three previously established formulations.

Item Type:	Thesis (Other)
Additional Information:	RSS 624.177 65 Tri s
Uncontrolled Keywords:	Beban gravitasi, finite element, lendutan, metode rangka ekivalen, struktur flate plate. Finite element method; flat plate structures, deflection, gravity loading, equivalent frames method
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA645 Structural analysis (Engineering)
Divisions:	Faculty of Civil Engineering and Planning > Civil Engineering > 22201-(S1) Undergraduate Thesis
Depositing User:	magang .
Date Deposited:	29 Oct 2026 07:36
Last Modified:	29 Oct 2026 07:36
URI:	http://repository.its.ac.id/id/eprint/146005

Actions (login required)

View Item