Shear Strength of Concrete Composite Beams with Shear Reinforcements

Kim, Chul-Goo; Park, Hong-Gun; Hong, Geon-Ho; Kang, Su-Min; Lee, Hyerin

doi:10.14359/51689441

Cited by 10 publications

(13 citation statements)

References 4 publications

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“…In all these specimens, the compression chord failed once the web reinforcement had yielded. Consequently, the two observed failure modes in these specimens were those commonly known (e.g., see [16]) as diagonal tension failure (DT in Table 5) (see for example the specimen NWP1B2i in Fig. 6)…”

Section: Specimens With Web Reinforcementmentioning

confidence: 77%

“…Few studies have shown a close approach to those issues, the most important being those by Halicka et al [1,14,15] and Kim et al [9,[16][17][18]. In particular, Halicka et al developed an experimental study about the influence of interface quality on the shear strength of concrete composite beams [1,14,15], in which the possible failure mechanisms in concrete composite beams are described as well as an analytical criterion to predict the failure mechanism.…”

Section: Introductionmentioning

confidence: 99%

“…Halicka points out in [14] there are few research works regarding the influence of the interface cracking on the shear strength of the composite element. Kim et al [9,[16][17][18] ran an extensive experimental programme on the shear strength of rectangular composite beams made of prestressed and non-prestressed concrete, using different strength concretes (high-strength and low-strength concrete) and adding or not steel fibres in the concrete mass. They obtained interesting results about the influence on the shear strength of these different concretes and their location at the precast beam or the slab; however, the influence of the interface was not studied since most of the specimens behaved similarly to monolithic specimens.…”

Section: Introductionmentioning

confidence: 99%

“…ACI 318-19 [21] specifies how shear strength of composite beams can be calculated, as long as the shear at the interface is verified: using the properties of the element (precast beam or cast-in-place slab) that result in the most critical shear strength value or the properties of individual elements. Notwithstanding, relevant experimental and theoretical evidence are still needed to support the validity of these considerations for composite specimens [9,16].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Towards the Development of a Formulation for Obtaining the Shear Strength of Concrete Composite Beams

Rueda¹,

Bonet²,

Sosa³

et al. 2023

hya

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In the design and assessment of precast concrete beams with a slab cast on top, namely concrete composite beams, engineers still face in practice unsolved shear-related issues, such as the contribution to shear strength of the slab, the concrete strength to be considered in shear formulations or the influence of the interface between concretes in the shear behaviour. In the present research, 69 shear tests were performed on monolithic and composite beams, with rectangular or T-shaped cross-section, with or without transverse reinforcement and with different concrete qualities, to experimentally analyse the issues mentioned above. The study of the shear transfer mechanisms at failure led to formulating a model for explaining the observed results. Based on this model, a shear strength predictive formulation for concrete composite beams with web reinforcement has been developed, which has been verified with the experimental results from this research and 24 additional tests from the literature. This formulation provides accurate predictions compared to the shear strength formulations of current codes EC2, MC-10 and ACI 318-19. The proposed model lays the foundations for the future development of a user-friendly formulation for calculating the shear strength of concrete composite beams.

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Section: Specimens With Web Reinforcementmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Towards the Development of a Formulation for Obtaining the Shear Strength of Concrete Composite Beams

Rueda¹,

Bonet²,

Sosa³

et al. 2023

hya

View full text Add to dashboard Cite

show abstract

“…Comparing the shearing strength of the grouted samples can analyze the grouting effect. Analyzing the failure process of samples and the shape of shearing failure of the samples can provide the basis for analyzing the reasonable parameters of grouting for different strength rock masses [ 27 , 28 , 29 , 30 ]. Therefore, further analysis is carried out from the following two aspects.…”

Section: Analysis Of Grouting Reinforcement Effect and Failure Chamentioning

confidence: 99%

Research on the Reasonable Grouting Strength of Rock-Like Samples in Different Strengths

et al. 2020

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One of the key points to make grouting reinforcement technology efficient and economical in engineering is to find out the optimal match relationship between different strengthsofrock mass and strength ofgrouting material. It can be called areasonable grouting strength. To explore that, 5 kinds of N (compressive strength of cement mortar) were used to make samples to simulate the different rock strengths. Five kinds of M (compressive strength of inorganic double-fluid material) were used to grout the structural plane of samples. Then the shearing experiment was carried out under the same normal stress conditions. Finally, based on the analyses of experimental results, the C (the reasonable range of grouting parameters) was proposed. The result shows that when M is the same, the smaller N is, the higher the τ(shearing strength of samples) growth rate is. When N is the same, with the increase of M, the growth rate of τ tends to zero. According to the shearing failure process and morphology of the samples, when N is the same, with the increase of M, the failure typeofsamples change from plastic flow failure to brittle sliding failure which is the same as the samples without the structural plane. C is equal to the ratio of M to N, and then the evaluation criteria of C is established by judging that if it is in the range from 1.19 to CMAX(CMAX = 0.0095N2 − 0.43N + 5.83). It will provide a certain basis to select the M in engineering in which N is known.

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Horizontal shear behavior of self-compacting lightweight concrete composite beams with dry joints and unbonded reinforcements

Choi,

Lee,

Shin

et al. 2024

Cement and Concrete Composites

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Shear Strength of Concrete Composite Beams with Shear Reinforcements

Cited by 10 publications

References 4 publications

Towards the Development of a Formulation for Obtaining the Shear Strength of Concrete Composite Beams

Towards the Development of a Formulation for Obtaining the Shear Strength of Concrete Composite Beams

Research on the Reasonable Grouting Strength of Rock-Like Samples in Different Strengths

Horizontal shear behavior of self-compacting lightweight concrete composite beams with dry joints and unbonded reinforcements

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