Shear Response of Members without Shear Reinforcement—Experiments and Analysis Using Shear Crack Propagation Theory (SCPT)

Schmidt, Maximilian; Schmidt, Philipp; Wanka, Sebastian; Claßen, Martin

doi:10.3390/app11073078

Cited by 18 publications

(12 citation statements)

References 34 publications

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“…Analysis of the shear failure mechanisms (see, e.g., Huber et al 38 ; Cavagnis et al 39 ; Schmidt et al 29 ) can help better understand the previous observations on how the applied axial force and negative bending moment influence the shear capacity of RC elements (using for instance the results of DIC technique).…”

Section: Results Of the Tests And Discussionmentioning

confidence: 99%

“…However, when N = À250 kN, the negative bending moment does improve the shear capacity by as much as 34%. Analysis of the shear failure mechanisms (see, e.g., Huber et al 38 ; Cavagnis et al 39 ; Schmidt et al 29 ) can help better understand the previous observations on how the applied axial force and negative bending moment influence the shear capacity of RC elements (using for instance the results of DIC technique). Eurocode 2 1 for the beams without and with stirrups, respectively.…”

Section: Tests Results In Terms Of Failure Loadsmentioning

confidence: 99%

“…Other shear design methods can be found in the literature such as analytical methods based also on the yield design theory or limit analysis (see for example Ganwei and Nielsen 24,25 ; Zhang 26 ; Koechlin et al 27 ; Autrup and Joergensen 28 ), or on full mechanical models such as the Shear Crack Propagation Theory (SCPT). 29,30 Finite element methods can also give deeper information about shear failure mechanisms (see for example Faron and Rombach 31 ; Vidacovi'c and Halvonik 32 ).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental investigation on reinforced concrete beams subjected to axial compressive and shear forces

Wahbi

Pham

Hassen

et al. 2021

Structural Concrete

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This paper presents two experimental campaigns carried out on 36 reinforced concrete (RC) beams (with and without shear reinforcement) subjected to a three-point bending loading with a shear force on the one hand, an axial compressive load and a negative bending moment applied at each end of the beams on the other hand. Such a loading configuration makes it possible to investigate the influence of both axial compression and negative bending moment on the shear capacity of RC beams. For each campaign, three values of axial compressive force were studied, and the test beams were divided into two series with low and high negative bending moment. During the tests, Digital Image Correlation technique was used to capture the cracking evolution of the specimens. Besides, the experimental shear strengths of the beams are confronted to the predictions of Eurocode 2 in order to assess its practical validity. Finally, a semi-analytical method proposed by Wahbi et al. 2021 (A failure criterion for RC beams subjected to axial and transverse loadings) for evaluating the resistance domain of RC elements subjected to transverse and axial loads, is extended in this paper to take into account the negative bending moment and compared to the experimental results.

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Section: Results Of the Tests And Discussionmentioning

confidence: 99%

Section: Tests Results In Terms Of Failure Loadsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental investigation on reinforced concrete beams subjected to axial compressive and shear forces

Wahbi

Pham

Hassen

et al. 2021

Structural Concrete

View full text Add to dashboard Cite

show abstract

“…The shear capacity of beams and slabs is significantly influenced by the shear slenderness [68][69][70][71][72][73][74][75][76]. In the relevant area for the shear design, the shear capacity increases for small shear slenderness and decreases for large shear slenderness.…”

Section: Tests On Continuous Semi-precast Slabs With Lattice Girdersmentioning

confidence: 99%

Investigations on Interface Shear Fatigue of Semi-Precast Slabs with Lattice Girders

et al. 2021

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Due to their high cost efficiency and flexibility, semi-precast concrete slabs with lattice girders are widely used in constructions all over the world. Prefabricated concrete slabs, combined with in situ concrete topping, exhibit a quasi-monolithic structural behavior in which lattice girders serve as vertical shear reinforcement and ensure the transfer of longitudinal shear within the interface, acting in combination with concrete-to-concrete bonding mechanisms. To be applicable in industrial and bridge construction, semi-precast slabs need to have sufficient resistance against fatigue failure. To improve and expand the limits of application, theoretical and experimental investigations are conducted at the Institute of Structural Concrete (IMB), RWTH Aachen University. To investigate the fatigue behavior of lattice girders, small size tests with lattice girder diagonals were carried out. These test results have been used to derive an S–N curve (S: stress, N: number of load cycles) for lattice girders for a more refined fatigue design. Subsequently, the fatigue behavior of semi-precast slabs with lattice girders was investigated by fatigue tests on single-span slab segments. The fatigue design regulations of lattice girders according to technical approvals can generally be confirmed by this test program; however, they tend to be conservative. The use of the derived S–N curve leads to significantly improved agreement of fatigue behavior observed in tests and design expressions.

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“…Classen 16 also presented a new mechanical theory named shear crack propagation theory (SCPT) to explain the shear response and failure. To valid the SCPT, Schmidt et al 17 designed corresponding experiments and compared the theoretical values with the experimental values. The random crack propagation in RC was investigated by Cramer et al 18 who developed a crack propagation model to observe sequential cracking of uniaxially loaded RC components.…”

Section: Introductionmentioning

confidence: 99%

Automated finite element modeling and analysis of cracked reinforced concrete beams from three dimensional point cloud

Zhang

Shooshtarian

et al. 2021

Structural Concrete

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Modeling and assessing the load-carrying capacity of reinforced concrete (RC) structures that are cracked is important because the condition of an RC structure changes due to natural aging and accumulated damage. The current approach to determining the residual capacity of a cracked RC structure is timeconsuming and error-prone due to a limited capacity to obtain and process structural information. In this study, an automated approach was proposed to determining residual capacity by performing finite element (FE) analysis of an RC structure using point cloud three dimensional modeling. Two simply supported RC beams were subjected to bending tests to provide validation data. The initial activity was to extract dimensional data from laser-scanned point cloud data of a beam. The information obtained was used to automatically generate nonlinear FE models of the beam that was used for nonlinear FE analyses in Abaqus. An initial crack was added to the beam to model a cracked beam in real conditions. Three different models were used to simulate initial cracks, a weakened element model, a cohesive zone model, and an extended FE model.The results indicate that the proposed method of automating the combination of point cloud data with nonlinear FE analysis provides a novel practical approach to modeling and assessing cracked RC beams.

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Shear Response of Members without Shear Reinforcement—Experiments and Analysis Using Shear Crack Propagation Theory (SCPT)

Cited by 18 publications

References 34 publications

Experimental investigation on reinforced concrete beams subjected to axial compressive and shear forces

Experimental investigation on reinforced concrete beams subjected to axial compressive and shear forces

Investigations on Interface Shear Fatigue of Semi-Precast Slabs with Lattice Girders

Automated finite element modeling and analysis of cracked reinforced concrete beams from three dimensional point cloud

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