Verification of Compressive and Flexural Behavior of Corrugated Steel Plates Composite Section with SFRC

The purpose of this paper is to investigate the flexural behavior of over-reinforced concrete beam enhancement by bolted-compression steel plate (BCSP) with normal reinforced concrete beams under laboratory experimental condition. Three beams developed with steel plates were tested until they failed in compression compared with one beam without a steel plate. The thicknesses of the steel plates used were 6 mm, 10 mm, and 15 mm. The beams were simply supported and loaded monotonically with two-point loads. Load-deflection behaviors of the beams were observed, analyzed, and evaluated in terms of spall-off concrete loading, peak loading, displacement at mid-span, flexural stiffness (service and post-peak), and energy dissipation. The outcome of the experiment shows that the use of a steel plate can improve the failure modes of the beams and also increases the peak load and flexural stiffness. The steel development beams dissipated much higher energies with an increase in plate thicknesses than the conventional beam.

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Effect of Angle Shear Connectors on the Behavior of Composite Concrete Steel Flexural Members Under Negative Moment

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i4.20.25921 ◽

2018 ◽

Vol 7 (4.20) ◽

pp. 174

Author(s):

Alaa M. Al-Khekany ◽

Labeeb S. Al-Yassri ◽

Munaf A. Al-Ramahee ◽

Saeed Abdul-Abbas

Keyword(s):

Bending Moment ◽

Composite Beams ◽

Point Load ◽

Flexural Behavior ◽

Experimental Program ◽

Cross Sectional ◽

Shear Connectors ◽

Bond Interaction ◽

Composite Section ◽

Headed Stud

This research presents an experimental program to study the effect of using angle shear connectors instead of the headed stud on the flexural behavior of composite beams under negative bending moment (NBM). Both the angle and headed stud shear connectors used in this study have the same cross-sectional area. Five composite beams were casted and tested using three-point load configuration to ensure the NBM effect. Different parameters were included in this study such as the type of shear connector, bond interaction (partial and complete bond interaction) and arrangement of angle shear connectors. Two proposals method were suggested for angle setting in this study to investigate the structural behavior of the composite section. It has been found that, in the case of single angle shear connectors, the ultimate strength decreased by 4.12% compared with samples with the headed stud shear connectors. The direction of the angle setting has been shown to affect the flexural behavior of the composite section.

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Flexural Behavior of Reinforced Concrete Beams Retrofitted with Modularized Steel Plates

Applied Sciences ◽

10.3390/app11052348 ◽

2021 ◽

Vol 11 (5) ◽

pp. 2348

Author(s):

Min Sook Kim ◽

Young Hak Lee

Keyword(s):

Reinforced Concrete ◽

Concrete Beams ◽

Load Capacity ◽

Maximum Load ◽

Reinforced Concrete Beams ◽

Steel Plates ◽

Flexural Behavior ◽

Element Analysis ◽

Flexural Performance ◽

Structural Capacity

Many structural retrofitting methods tend to only focus on how to improve the strength and ductility of structural members. It is necessary for developing retrofitting strategy to consider not only upgrading the capacity but also achieving rapid and economical construction. In this paper, a new retrofitting details and technique is proposed to improve structural capacity and constructability for retrofitting reinforced concrete beams. The components of retrofitting are prefabricated, and the components are quickly assembled using bolts and chemical anchors on site. The details of modularized steel plates for retrofitting have been chosen based on the finite element analysis. To evaluate the structural performance of concrete beams retrofitted with the proposed details, five concrete beams with and without retrofitting were tested. The proposed retrofitting method significantly increased both the maximum load capacity and ductility of reinforced concrete beams. The test results showed that the flexural performance of the existing reinforced concrete beams increased by 3 times, the ductility by 2.5 times, and the energy dissipation capacity by 7 times.

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Experimental Flexural Behavior of Composite Beam using Cold Formed Hollow Square Section

International Journal of Innovative Technology and Exploring Engineering - Special Issue ◽

10.35940/ijitee.f4833.049620 ◽

2020 ◽

Vol 9 (4) ◽

pp. 1987-1992

Keyword(s):

Composite Beam ◽

Concrete Strength ◽

Composite Beams ◽

Flexural Behavior ◽

Test Results ◽

Hollow Section ◽

Lateral Strength ◽

Composite Section ◽

Flexural Tests ◽

Hot Rolled

Structural hollow sections have excellent properties for resisting static loads, with regard to buckling, bi-axial bending and torsion. Structural hollow sections are generally used for truss components, considering greater stiffness and lateral strength. A square hollow section truss has about two third of surface area of same size I section. Hollow section truss may have smaller members as a result of higher structural efficiency. Construction of composite beam commonly includes I section. This paper deals with comparison of commonly used hot rolled or welded I composite section with cold formed hollow RHS and SHS composite section with respect to flexure and shear. Flexural tests were conducted to evaluate the structural behavior of the proposed composite beams. Two different steel sections were used for this study with nominal concrete strength of 30 MPa. The composite beams were tested under concentrated two points loading. The test results were plotted and compared with analytical results. The mid span deflections and slip were recorded for both composite beams. Buckling modes for both composite beams were identified. comparisons have been carried out between predicted beam strength as provided by Eurocode -4 and experimental test results. Sectional properties are checked for cold formed hollow square section using EN 1993-1-3.

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Flexural Behavior of Precracked Reinforced Concrete Beams Strengthened Externally by Steel Plates

ACI Structural Journal ◽

10.14359/1466 ◽

1995 ◽

Vol 92 (1) ◽

Cited By ~ 9

Keyword(s):

Reinforced Concrete ◽

Concrete Beams ◽

Reinforced Concrete Beams ◽

Steel Plates ◽

Flexural Behavior

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An Experimental Study on the Flexural Behavior of Precast Concrete Modular Beam Systems Using Inserted Steel Plates

Applied Sciences ◽

10.3390/app11093931 ◽

2021 ◽

Vol 11 (9) ◽

pp. 3931

Author(s):

Kyong-Min Ro ◽

Min-Sook Kim ◽

Chang-Geun Cho ◽

Young-Hak Lee

Keyword(s):

Low Cost ◽

Precast Concrete ◽

Technical Problem ◽

Steel Plates ◽

Flexural Behavior ◽

Structural Performance ◽

Modular System ◽

Beam Specimen ◽

Structural Integration ◽

Beam System

Recently, interest in using precast concrete (PC) modules has increased due to their better seismic performance than steel modules. However, they must be joined by additional elements to ensure structural integration between the modules. The essential aim of the precast concrete module is to ensure structural performance with appropriate connection methods. However, the technical problem of connecting PC modules still needs to be improved. This study proposed a PC modular beam system for improved structural and splicing performance, and simple construction. This modular system consisted of modules with steel plates inserted to improve integrity of modules, ease of construction, and low cost. The structural performance of the proposed PC modular beam system was evaluated by flexural test on one reinforced concrete (RC) beam specimen consisting of a monolithic beam, and two PC specimens with the proposed modular system. The results demonstrated that the proposed PC modular beam system achieved approximately 80% of the structural performance compared to the monolithic specimen, with approximately 1.3-fold greater ductility.

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An Experimental Verification on the Compressive Behavior of Corrugated Steel Plates and Concrete Composite Section

Korean Society of Hazard Mitigation ◽

10.9798/kosham.2017.17.5.223 ◽

2017 ◽

Vol 17 (5) ◽

pp. 223-231 ◽

Cited By ~ 1

Author(s):

Yongjae Kim ◽

◽

Hyeongi Lee ◽

Hongseob Oh ◽

◽

...

Keyword(s):

Experimental Verification ◽

Steel Plates ◽

Compressive Behavior ◽

Composite Section

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Flexural Behavior of iFLASH System with No Blast Metal Cleaned Steel Plates

Journal of the Korean Society for Advanced Composite Structures ◽

10.11004/kosacs.2015.6.4.030 ◽

2015 ◽

Vol 6 (4) ◽

pp. 30-37 ◽

Cited By ~ 2

Author(s):

Yong-Yeal Kim ◽

◽

Jaeho Ryu ◽

Sung-Won Yoon ◽

Young K. Ju

Keyword(s):

Steel Plates ◽

Flexural Behavior

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The Effect of Steel Plate on the Deflection of Self Reinforced Concrete Beam with and Without Opening

Diyala Journal of Engineering Sciences ◽

10.24237/djes.2013.06104 ◽

2013 ◽

Vol 6 (1) ◽

pp. 36-49

Author(s):

Ali Sabah AL-Amili

Keyword(s):

Reinforced Concrete ◽

Concrete Beam ◽

Steel Plate ◽

Failure Load ◽

Concrete Beams ◽

Reinforced Concrete Beam ◽

Reinforced Concrete Beams ◽

Steel Plates ◽

Flexural Behavior ◽

External Plate

In this work aims at studying the influence of steel plate on the deflection of self- compacted reinforced concrete beams was investigated experimentally in this study to know the flexural behavior of these beams. Eight simply supported reinforced concrete beam were tested under the action of two point loads .The deflections of the beams with and without plate are measured. The steel plates of thickness (3 mm) with dimensions ( 170 × 350 mm) were used. These plates were sticked on the concrete beams using epoxy. The steel plate inside the beam was sticked with and without epoxy (epoxy type EP), while the beams were taken with and without opening (10 mm diameter). The results show that the plate increased the capacity of the beam by increased the value of failure load. Hence, the beam with internal plate with epoxy increased the failure load by 34.2% than beam without plate , and 24.6% than beam with internal plate without epoxy , and 19.7% than beam with external plate with epoxy .

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