Optimization Parameter of Openings with Diagonal Stiffeners on Laterally Brace Castellated Steel Beams

Shear force in general greatly contributes to cause failure of castellated beams so diagonal stiffeners on the openings are required. Optimization was done by vary dimension of openings and diagonal stiffeners. Finite element method is utilized to perform nonlinear analysis. The objective of this r...

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Autor principal:	Erwin Sanjaya
Formato:	article
Lenguaje:	ID
Publicado:	Universitas Udayana 2020
Materias:	Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/fa4b18faff644689aaa5fbcf87d43cbd
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spelling	oai:doaj.org-article:fa4b18faff644689aaa5fbcf87d43cbd2021-11-28T13:35:14ZOptimization Parameter of Openings with Diagonal Stiffeners on Laterally Brace Castellated Steel Beams1411-12922541-5484https://doaj.org/article/fa4b18faff644689aaa5fbcf87d43cbd2020-07-01T00:00:00Zhttps://ojs.unud.ac.id/index.php/jits/article/view/49919https://doaj.org/toc/1411-1292https://doaj.org/toc/2541-5484Shear force in general greatly contributes to cause failure of castellated beams so diagonal stiffeners on the openings are required. Optimization was done by vary dimension of openings and diagonal stiffeners. Finite element method is utilized to perform nonlinear analysis. The objective of this research is to compare the numerical results of castellated beams without diagonal stiffeners with AISC design procedures that provided in Steel Design Guide 31, AISC 2016. Furthermore, nonlinear behaviour that involves critical load and Von Mises stress distribution of castellated beams with and without diagonal stiffeners were studied to obtain optimum dimension of openings and diagonal stiffeners. Optimum value in this research involves the greatest initial stiffness (Ki), strength (wmax), and ductility (?) of structure. The results showed that AISC design procedures could predict the location of maximum stress accurately and yield more conservative ultimate strength of beam compared to numerical result. The optimum models on castellated steel beams without diagonal stiffeners are CB60-1 (wnstmax = 56,16 kN/m) and CB45-1 (?nst = 3,06) with average initial stiffener 5,78 kN/m. While, the optimum models on castellated steel beams with diagonal stiffeners are CB45-33 (Ksti = 6,99 kN/m/m), CB60-11 (wstmax = 67,53 kN/m), and CB60-24 (?st = 2,79). Thus, utilization of diagonal stiffeners is effective to increase initial stiffness and strength of structure, but reduce the structure’s ductility.Erwin SanjayaUniversitas UdayanaarticleEngineering (General). Civil engineering (General)TA1-2040IDJurnal Ilmiah Teknik Sipil, Pp 36-45 (2020)
institution	DOAJ
collection	DOAJ
language	ID
topic	Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Engineering (General). Civil engineering (General) TA1-2040 Erwin Sanjaya Optimization Parameter of Openings with Diagonal Stiffeners on Laterally Brace Castellated Steel Beams
description	Shear force in general greatly contributes to cause failure of castellated beams so diagonal stiffeners on the openings are required. Optimization was done by vary dimension of openings and diagonal stiffeners. Finite element method is utilized to perform nonlinear analysis. The objective of this research is to compare the numerical results of castellated beams without diagonal stiffeners with AISC design procedures that provided in Steel Design Guide 31, AISC 2016. Furthermore, nonlinear behaviour that involves critical load and Von Mises stress distribution of castellated beams with and without diagonal stiffeners were studied to obtain optimum dimension of openings and diagonal stiffeners. Optimum value in this research involves the greatest initial stiffness (Ki), strength (wmax), and ductility (?) of structure. The results showed that AISC design procedures could predict the location of maximum stress accurately and yield more conservative ultimate strength of beam compared to numerical result. The optimum models on castellated steel beams without diagonal stiffeners are CB60-1 (wnstmax = 56,16 kN/m) and CB45-1 (?nst = 3,06) with average initial stiffener 5,78 kN/m. While, the optimum models on castellated steel beams with diagonal stiffeners are CB45-33 (Ksti = 6,99 kN/m/m), CB60-11 (wstmax = 67,53 kN/m), and CB60-24 (?st = 2,79). Thus, utilization of diagonal stiffeners is effective to increase initial stiffness and strength of structure, but reduce the structure’s ductility.
format	article
author	Erwin Sanjaya
author_facet	Erwin Sanjaya
author_sort	Erwin Sanjaya
title	Optimization Parameter of Openings with Diagonal Stiffeners on Laterally Brace Castellated Steel Beams
title_short	Optimization Parameter of Openings with Diagonal Stiffeners on Laterally Brace Castellated Steel Beams
title_full	Optimization Parameter of Openings with Diagonal Stiffeners on Laterally Brace Castellated Steel Beams
title_fullStr	Optimization Parameter of Openings with Diagonal Stiffeners on Laterally Brace Castellated Steel Beams
title_full_unstemmed	Optimization Parameter of Openings with Diagonal Stiffeners on Laterally Brace Castellated Steel Beams
title_sort	optimization parameter of openings with diagonal stiffeners on laterally brace castellated steel beams
publisher	Universitas Udayana
publishDate	2020
url	https://doaj.org/article/fa4b18faff644689aaa5fbcf87d43cbd
work_keys_str_mv	AT erwinsanjaya optimizationparameterofopeningswithdiagonalstiffenersonlaterallybracecastellatedsteelbeams
_version_	1718407870351933440

Optimization Parameter of Openings with Diagonal Stiffeners on Laterally Brace Castellated Steel Beams

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