Analysis of compressive membrane action in concrete slabs

Zheng, Yu; Robinson, D. J.; Taylor, Su; Cleland, David; Shaat, Ahmed

doi:10.1680/bren.2008.161.1.21

Cited by 7 publications

(6 citation statements)

References 9 publications

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“…Therefore, if possible, the static equilibrium should be checked. In implicit static analysis, it is found that the reaction forces are always equal to the applied loads even though the applied loads have surpassed the ultimate strength of the structure (Zheng, 2008). However, in quasistatic analysis, it is possible for the non-equilibrium of forces to occur in the analysis due to dynamic effects.…”

Section: Modelmentioning

confidence: 99%

Non-linear finite-element analysis of punching capacities of steel–concrete bridge deck slabs

Zheng

Robinson²,

Taylor³

et al. 2012

Proceedings of the Institution of Civil Engineers - Structures

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Punching failure is the common failure mode in concrete bridge deck slabs when these structural components are subjected to local patch loads, such as tyre loads. Past research has shown that reinforced concrete slabs in girderslab type bridges have a load-carrying capacity far greater than the ultimate static loads predicted by traditional design methods, because of the presence of compressive membrane action. However, due to the instability problems from punching failure, it is difficult to predict ultimate capacities accurately in numerical analyses. In order to overcome the instability problems, this paper establishes an efficient non-linear finite-element analysis using the commercial finite-element package Abaqus. In the non-linear finite-element analysis, stabilisation methods were adopted and failure criteria were established to predict the ultimate punching behaviour of deck slabs in composite steel-concrete bridges. The proposed non-linear finite-element analysis predictions showed a good correlation on punching capacities with experimental tests.

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Section: Modelmentioning

confidence: 99%

Non-linear finite-element analysis of punching capacities of steel–concrete bridge deck slabs

Zheng

Robinson²,

Taylor³

et al. 2012

Proceedings of the Institution of Civil Engineers - Structures

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“…Park and Gamble [57], Graddyetal. [58], and Zheng et al [59] deduced that this type of failure is commonly present in thick slab with restrained boundary.…”

Section: Conventional Design Methodsmentioning

confidence: 99%

Transverse Slab Reinforcement Design of Concrete Bridge Deck: A Review

et al. 2018

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This paper reviews the current design practices of transverse slab reinforcement design in concrete bridge deck, which consist of concrete deck slab on wide concrete T-beams. The conventional bridge design method results in the provision of excessive transverse steel reinforcement in the concrete bridge deck slab due to the fact that, the slab is assumed to bear the applied vehicular loadings alone without considering the contribution of the wide T-beam flanges. Thus, the design which is based on bending and failure proved to be too conservative. Through critical review, issues regarding some design approaches were discussed. It has been found that, designing the deck slab in transverse direction would enable the vehicle wheel loads to be supported by the wide T-beam flanges and performance enhancement can be achieved by compressive membrane action resulted from the natural stiffness of the wide girder flanges. The presence of this membrane forces provides a punching shear capacity, which is far beyond the flexural design capacity for the new bridge deck system. This capacity would result in substantial reduction of the transverse reinforcement within the slab.

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“…The results of the ultimate load capacity predictions by the two methods for Taylor's [14] specimens are presented in Table 3. Zhing et al [27] had used the Riks method for the prediction of the enhanced ultimate strength of Taylor's slab specimens and was referred to in this comparison by (P FER ). Both methods were found to provide very good predictions of the ultimate load capacities for Taylor's specimens.…”

Section: Comparison Between Riks Methods and General Static Methodsmentioning

confidence: 99%

“…Zhing et al [27] made slightly different assumptions regarding material properties. They assumed two different stress-strain relationships; one for concrete up to 60N/mm 2 strength and the other one for greater than 60N/mm 2 .…”

Section: Comparison Between Riks Methods and General Static Methodsmentioning

confidence: 99%

Finite Element Analysis of the Enhanced Strength of Laterally Restrained RC Slabs

Shaat

Taylor²,

Robinson³

et al. 2014

cea

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This paper presents the numerical simulation of the ultimate behaviour of 85 one-way and two-way spanning laterally restrained concrete slabs of variable thickness, span, reinforcement ratio, strength and boundary conditions reported in literature by different authors. The developed numerical model was described and all the assumptions were illustrated. ABAQUS, a Finite Element Analysis suite of software, was employed. Non-linear implicit static general analysis method offered by ABAQUS was used. Other analysis methods were also discussed in general in terms of application such as Explicit Dynamic Analysis and Riks method. The aim is to demonstrate the ability and efficacy of FEA to simulate the ultimate load behaviour of slabs considering different material properties and boundary conditions. The authors intended to present a numerical model that provides consistent predictions of the ultimate behaviour of laterally restrained slabs that could be used as an alternative for expensive real life testing as well as for the design and assessment of new and existing structures respectively. The enhanced strength of laterally-restrained slabs compared with conventional design methods predictions is believed to be due to compressive membrane action (CMA). CMA is an inherent phenomenon of laterally restrained concrete beams/slabs. The numerical predictions obtained from the developed model were in good correlation with the experimental results and with those obtained from the CMA method developed at the Queen'

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Analysis of compressive membrane action in concrete slabs

Cited by 7 publications

References 9 publications

Non-linear finite-element analysis of punching capacities of steel–concrete bridge deck slabs

Non-linear finite-element analysis of punching capacities of steel–concrete bridge deck slabs

Transverse Slab Reinforcement Design of Concrete Bridge Deck: A Review

Finite Element Analysis of the Enhanced Strength of Laterally Restrained RC Slabs

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