Experimental behaviour of high‐strength concrete deep beams with web openings

Yoo, Tae Min; Doh, Jeung‐Hwan; Guan, Hong; Fragomeni, Sam

doi:10.1002/tal.718

Cited by 21 publications

(13 citation statements)

References 13 publications

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“…An experimental study has been undertaken to rectify the reliability of the proposed equation on high-strength concrete (HSC) deep beams with various openings sizes and location in the web. [Tae-Min, 2013]. The shear or flexure failure patterns in most of the research is seen passing through the web holes of diferent sizes in most of the experimental research results [Tae-Min, 2013].…”

Section: Literature Reviewmentioning

confidence: 97%

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Phenomenon of Penetration of Vertical Pipes into the Horizontal Members of Concrete Structure

2020

Journal of Architecture and Planning - King Saud University

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The typical types of the Riyadh's houses are limited in villas, duplexes and low-rise apartment buildings. Most of these dwelling houses are constructed using reinforced concrete framed structures with reinforced concrete flat roof deck slabs, ribbed slabs, joist floor slab (Hordy). Unfortunately, there are some construction problems that occurred due to wrong practice by the contractors. One of these problems is what we can call "phenomenon of penetration of vertical pipes into the horizontal members such as beams and slabs of concrete structure". This phenomenon practiced in some dwelling houses deserves consideration regarding its possible serious impact on the structure. The seriousness of this phenomenon lies in its hidden influence, which might happen suddenly or gradually, partially or totally in the form of cracking or collapsing. If this practice continues without evaluation, it may cause damage and severe failure in the structure. This paper emphasizes the serious effect of this practice by using a computer simulation program, which indicate that the severe cracking in the beams would make the structure and walls to fail in the course of time. Almost all the research conducted in this field is on web openings in the beams. However, a practice has been seen in Riyadh that the contractors are opening a hole vertically across the depth the beams and other structural members for easy placement of building services conduits purposes. An attempt has been made in this paper to conduct a research to evaluate the effect of opening a hole across the depth of the beam as seen in the local practice in the local construction. This incorrect construction has been discussed in this research by introducing vertical holes with different sizes and locations into the horizontal members of Concrete Structure. Comparison has been made with correct analysis and design for different cases of holes with beams without openings using a computer program. Spacing of bars, cracking of concrete due to a vertical hole and the difficulty in the bars arrangements has been discussed.

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Section: Literature Reviewmentioning

confidence: 97%

“…[Tae-Min, 2013]. The shear or flexure failure patterns in most of the research is seen passing through the web holes of diferent sizes in most of the experimental research results [Tae-Min, 2013].…”

Section: Literature Reviewmentioning

confidence: 97%

Phenomenon of Penetration of Vertical Pipes into the Horizontal Members of Concrete Structure

2020

Journal of Architecture and Planning - King Saud University

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“…During the last several decades there has been an increased popularity in deep beams within high-rise buildings, offshore structures and foundations [12].…”

Section: Introductionmentioning

confidence: 99%

“…The benefit of using high strength concrete in buildings is varied such as resistance to noise, vibration and thermal control. Despite the fact that using high strength concrete adds complexity on the behaviour of structure, the trend of current construction is heading towards more utilisation of high strength concrete and this trend has been demonstrated in the most recent national codes [12].…”

Section: Introductionmentioning

confidence: 99%

Stress-Strain Distribution in High Strength Self Compacted Concrete Deep Beam

Hassan

Arab

Elqassas

2017

Port-Said Engineering Research Journal

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Beam is classified as a deep beam if the beam has a larger depth in relation to spans. Deep beam differ from normal beam in which they are most likely to have strength controlled by shear rather than flexure. In addition, deep beams have been widely used as a transfer girder in offshore structures as well as foundations. Moreover, the failure behaviour of deep beams is significantly not the same from the one which are shallow due to the geometry and load transfer mechanism. This research presented the stress-strain distribution results for four identical high strength self compacted concrete (HSSCC) deep beams. From the indicated results, it could be concluded that, the strain distribution at mid span was non linear at all loading increments and the compression strain at the top of mid span section increased with the increasing of the applied load. There is a disturbance in tension strain values due to the crack propagation and the deformation of this area. From the stress distribution of deep beam, it could be indicated that neutral axis is at the middle third of the beam depth and is tends slightly to the upper direction.

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“…Deep beams are desired in huge construction such as gravity concrete foundation, bridges, and multipurpose high-rise buildings [1]. These have many purposive applications in building structures such as transfer girders, wall footings, foundation pile caps, water tanks, bins, folded plate roof structures, floor diaphragms, brackets or corbels, and shear walls.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Reinforced Concrete Deep Beams Using Nonlinear Strain Model

Abdel-Nasser

Sharaf

Ghatass

et al. 2017

Port-Said Engineering Research Journal

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A nonlinear strain compatibility model is considered to investigate the behavior of reinforced concrete deep beams. It is based on satisfying equilibrium of stresses and compatibility of strains at all layers of the beam cross-section. A VISUAL BASIC code is developed for this model. Strain distribution over the cross section depth in deep beams is different from shallow beams, and varies according to the case of loading, the span-to-depth ratio (L/h), and the structural system. The experimental values of strain over the cross-section depth for different cases for simply supported deep beams, are extracted from the available literature. Based on these values, simplified equations for strain profiles for each case is proposed to use them in the present model. A key feature of the model is the ability to illustrate the effect of shear deformation of the cross section. The model is validated by comparing predicted results with experimental ones from literature in terms of load-displacement.amounts of tension reinforcing steel are considered [3]. The stress and strain distribution along the deep beam depth are different from that in RC shallow beams.

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Experimental behaviour of high‐strength concrete deep beams with web openings

Cited by 21 publications

References 13 publications

Phenomenon of Penetration of Vertical Pipes into the Horizontal Members of Concrete Structure

Phenomenon of Penetration of Vertical Pipes into the Horizontal Members of Concrete Structure

Stress-Strain Distribution in High Strength Self Compacted Concrete Deep Beam

Analysis of Reinforced Concrete Deep Beams Using Nonlinear Strain Model

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