Effect of Intermediate Stiffeners on the Behaviors of Partially Concrete Encased Steel Beams

Partially concrete encased steel (PE) beams are composite steel beams and concrete elements that present several advantages, such as higher fire resistant, higher flexural capacity, and higher lateral torsional buckling resistant compared to bare steel beams. This paper reports an experimental study...

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Main Authors: Cheng-Cheng Chen, Teguh Sudibyo
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2018/8672357
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author Cheng-Cheng Chen
Teguh Sudibyo
author_facet Cheng-Cheng Chen
Teguh Sudibyo
author_sort Cheng-Cheng Chen
collection DOAJ
description Partially concrete encased steel (PE) beams are composite steel beams and concrete elements that present several advantages, such as higher fire resistant, higher flexural capacity, and higher lateral torsional buckling resistant compared to bare steel beams. This paper reports an experimental study of eight PE beams under cyclic loading. The effectiveness of intermediate stiffeners, such as midspan stiffener and plastic hinge zone stiffener, in enhancing composite action and ductility of the PE beams was studied. The ductility performance of PE beams using strengthened beam-to-column connection and weakened beam-to-column connection was also investigated. The test results show that the plastic hinge zone stiffener performed well and has the potential to replace shear connectors. Strengthened and weakened beam-to-column connections can be implemented in PE beams to enhance the ductility of the PE beams; with the details of both strengthened and weakened beam-to-column connections determined by bare steel shape instead of the whole section. In addition, the suggestions to prevent premature failure of weakened beam-to-column connection were provide.
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institution Kabale University
issn 1687-8086
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publishDate 2018-01-01
publisher Wiley
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series Advances in Civil Engineering
spelling doaj-art-d2959b6d31fd4cffa91826d5cf1398262025-02-03T06:06:13ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/86723578672357Effect of Intermediate Stiffeners on the Behaviors of Partially Concrete Encased Steel BeamsCheng-Cheng Chen0Teguh Sudibyo1Department of Civil and Construction Engineering, National Taiwan University of Science and Technology, Taipei 10607, TaiwanDepartment of Civil and Construction Engineering, National Taiwan University of Science and Technology, Taipei 10607, TaiwanPartially concrete encased steel (PE) beams are composite steel beams and concrete elements that present several advantages, such as higher fire resistant, higher flexural capacity, and higher lateral torsional buckling resistant compared to bare steel beams. This paper reports an experimental study of eight PE beams under cyclic loading. The effectiveness of intermediate stiffeners, such as midspan stiffener and plastic hinge zone stiffener, in enhancing composite action and ductility of the PE beams was studied. The ductility performance of PE beams using strengthened beam-to-column connection and weakened beam-to-column connection was also investigated. The test results show that the plastic hinge zone stiffener performed well and has the potential to replace shear connectors. Strengthened and weakened beam-to-column connections can be implemented in PE beams to enhance the ductility of the PE beams; with the details of both strengthened and weakened beam-to-column connections determined by bare steel shape instead of the whole section. In addition, the suggestions to prevent premature failure of weakened beam-to-column connection were provide.http://dx.doi.org/10.1155/2018/8672357
spellingShingle Cheng-Cheng Chen
Teguh Sudibyo
Effect of Intermediate Stiffeners on the Behaviors of Partially Concrete Encased Steel Beams
Advances in Civil Engineering
title Effect of Intermediate Stiffeners on the Behaviors of Partially Concrete Encased Steel Beams
title_full Effect of Intermediate Stiffeners on the Behaviors of Partially Concrete Encased Steel Beams
title_fullStr Effect of Intermediate Stiffeners on the Behaviors of Partially Concrete Encased Steel Beams
title_full_unstemmed Effect of Intermediate Stiffeners on the Behaviors of Partially Concrete Encased Steel Beams
title_short Effect of Intermediate Stiffeners on the Behaviors of Partially Concrete Encased Steel Beams
title_sort effect of intermediate stiffeners on the behaviors of partially concrete encased steel beams
url http://dx.doi.org/10.1155/2018/8672357
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