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A large deflection analysis considering plate membrane action is also proposed to predict the force deflection relation of SCS sandwich slabs.
Furthermore, the effect of membrane action is found to increase structural resistance to column loss by 10% in comparison with the grillage model using EC4 effective width and tributary load distribution concepts.
The compressive membrane action is enhanced by the natural lateral stiffness of the wide girder flanges and by tying adjacent girders together with steel rods placed between the webs.
The paper does not attempt to address how a rebar's free length across a discrete crack is generated, or the limiting crack widths implied, but this is shown in a range of examples to be a major issue if tensile membrane action is to be used in practice to enhance the capacity of slabs, for example in hazard loading situations.
With large deformations, a simplified calculation method for catenary action and tensile membrane action is proposed.
Similar(54)
However, when the specimens undergo a considerable plastically dynamic response, no compressive arch action and compressive membrane action are able to develop.
After the comparison the results of experimental models, the influences from these structural parameters on ultimate strengths and compressive membrane action were evaluated.
Tensile membrane action was shown to occur, with the failure load being approximately double that calculated using the classic yield line theory.
Greater catenary action and tensile membrane action are respectively mobilized in the longitudinal frame beams and the longitudinal direction of the frame slabs.
Greater catenary action and tensile membrane action are mobilized in the frame beams and slabs, respectively, at large deformations, but they mainly happen in the direction where the frame beams and slabs are laterally restrained.
One of the most important works in the ultimate limit state design of reinforced concrete plates or shells subjected to flexure and membrane actions is the one provided by Brondum-Nielsen (1974).
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