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270800

Shear Behaviour of RC Beams Reinforced with Internal Steel Plates Assemblies

Article

Last updated: 23 Jan 2023

Subjects

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Tags

Reinforced Concrete

Abstract

Shear failure in RC beams is brittle sudden one characterized by increased major crack width approaching failure. Thus, in order to improve the shear resistance of RC beams, special configuration of web reinforcement has to be provided in order to limit the crack width as well as to increase its shear capacity. In the current paper, a pre-prepared steel trusses have been configured and assembled using steel strips of 2 mm thickness and then used to enhance both the cracking characteristics and ultimate load capacity. Thus, an experimental program consists of five RC beams have been prepared and tested up to complete shear failure. Test specimens included un-reinforced control beam as well as another beam reinforced for shear by equivalent truss composed of smooth bars of 8 mm diameter simulating the trussed strips. Besides, three beams were reinforced by inclined steel strips, vertical steel strips and trussed steel strips. All steel strips have constant cross-section of 2 mm thickness and 25 mm width. It was found that the beam reinforced by trussed strips showed the outermost shear performance. It showed the highest ultimate capacity as well as the lowest major shear crack width among all specimens. The increases in the ultimate capacity were 79%, 107%, 141% and 129% for beams provided by vertical strips, inclined strips, trussed strips and equivalent trussed bars, respectively, compared to that of control unstrengthened beam. On the other hand, the measured crack width for the major shear crack near failure were about 0.9, 0.8, 0.5 and 0.6 mm, respectively, for beams provided by vertical strips, inclined strips, trussed strips and equivalent trussed bars.

DOI

10.21608/asge.2020.270800

Keywords

Shear behavior, Steel Strips, Steel Plate Truss, experimental test, crack width, RC beams

Volume

04

Article Issue

03

Related Issue

37710

Issue Date

2020-08-01

Receive Date

2022-11-21

Publish Date

2020-08-01

Page Start

60

Page End

72

Print ISSN

2785-9509

Online ISSN

2812-5142

Link

https://asge.journals.ekb.eg/article_270800.html

Detail API

https://asge.journals.ekb.eg/service?article_code=270800

Order

270,800

Type

Original Article

Type Code

2,140

Publication Type

Journal

Publication Title

International Journal of Advances in Structural and Geotechnical Engineering

Publication Link

https://asge.journals.ekb.eg/

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Details

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Article

Created At

23 Jan 2023