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ITS » Undergraduate Theses » Teknik Sipil
Posted by dee@its.ac.id at 22/03/2013 14:30:48  •  1109 Views


STUDI PERBANDINGAN BEBERAPA JENIS PENAMPANG BUCKLING RESTRAINED BRACES AKIBAT BEBAN AKSIAL DENGAN PROGRAM BANTU FINITE ELEMENT ANALYSIS

COMPARATIVE STUDY OF SOME SECTIONS OF BUCKLING RESTRAINED BRACES DUE TO AXIAL LOADS BY USING FINITE ELEMENT ANALYSIS

Author :
HAYU, GATI ANNISA  ( 3108100013 )




ABSTRAK

Buckling Restrained Braces BRB adalah salah satu jenis pengaku pada bangunan baja yang paling efisien untuk menahan gaya gempa sehingga dapat meminimalisir deformasi yang terjadi pada suatu portal. Hal ini dapat terjadi karena BRB akan mengalami leleh baik saat tarik maupun tekan serta memiliki kekakuan dan daktilitas yang tinggi. BRB memiliki komponen-komponen yang khas yaitu inti baja casing baja dan juga bahan pengisi filler. Tugas Akhir ini membahas mengenai perbandingan 3 jenis penampang BRB yaitu penampang kotak lingkaran dan multibox yang diberi beban aksial. Beban aksial ini diperoleh dari penelitian yang telah dilakukan sebelumnya. Analisa yang digunakan ada 2 macam yaitu dengan perhitungan analitik dan program bantu ABAQUS v.6.7 sehingga diperoleh penampang BRB yang paling baik perilakuknya saat dikenai beban aksial. Parameter dalam Tugas Akhir ini adalah tegangan regangan dan kekuatan bracing. Analisa dilakukan pada 5 titik dimana titik 1 dan 5 merupakan titik ujung kiri dan kanan BRB titik 3 merupakan bagian tengah BRB serta titik 2 dan 4 merupakan titik sejauh 400 mm dari ujung kiri dan kanan BRB. Berdasarkan analisa yang telah dilakukan diperoleh hasil bahwa dari segi tegangan dan kekuatan bracing penampang multibox memiliki tegangan dan kekuatan yang paling optimum kemudian penampang lingkaran dan penampang kotak. Dari segi regangan untuk titik analisa 12 4 dan 5 penampang lingkaran memiliki regangan terbesar kemudian penampang kotak dan penampang multibox. Sementara untuk titik analisa 3 penampang multibox memiliki regangan terbesar kemudian penampang lingkaran dan yang terakhir adalah penampang kotak.


ABSTRACT

Buckling Restrained Brace BRB is one of the most efficient stiffeners on steel building to resist earthquake force so it can minimize the deformation that occurs in portal. It can be happened because the BRB will yield in tension and compression as well as has a high stiffeness and ductility. BRB has typical components namely the steel core steel casing and filler material. This Final Project discusses the comparison of 3 types of BRBs cross section namely box section circle section and multiboxes section due to axial loads. Axial load is obtained from the research that has been done before. There are 2 analytical methods namely analytic calculation and by using ABAQUS v.6.7 in order to obtain BRBs cross-section that has a good behavior when subjected to axial loads. The parameters used as a comparison in this Final Project are stress strain and the brace strength. The analyses was conducted on 5 point in which point 1 and 5 are the left and right end point point 3 is the middle of BRB and point 2 and 4 are the point that as far as 400 mm from the left and the right end of BRB. Output from this Final Project in terms of stress and brace strength multiboxes has the most optimum then circle section and box section. In terms of strain for analysis point 12 4 and 5 circle section has the greatest strain then box section and multiboxes. Meanwhile for analysis point 3 the multiboxes section has the greatest strain then the circle section and box section.



KeywordsBuckling Restrained Braces; Penampang persegi; Penampang lingkaran; Penampang multibox; Kontur tegangan; Displacement
 
Subject:  Buckling (mechanics)--mathematical models; Finite element methods
Contributor
  1. Budi Suswanto, ST., MT., Ph.D.
Date Create: 14/07/2012
Type: Text
Format: pdf
Language: Indonesian
Identifier: ITS-Undergraduate-31001130002035
Collection ID: 31001130002035
Call Number: RSS 624.177 6 Hay s


Source
Undergraduate Thesis of Civil Engineering, RSS 624.177 6 Hay s, 2013

Coverage
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Copyright @2013 by ITS Library. This publication is protected by copyright and per obtained from the ITS Library prior to any prohibited reproduction, storage in a re transmission in any form or by any means, electronic, mechanical, photocopying, reco For information regarding permission(s), write to ITS Library




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  1.  ITS-Undergraduate-24163-Abstract_id.pdf - 428 KB
  2.  ITS-Undergraduate-24163-Abstract_en.pdf - 509 KB
  3.  ITS-Undergraduate-24163-Conclusion-859809.pdf - 840 KB




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