Conference publications

Abstracts

XXII conference

Finite element simulation of a uniformly loaded hinged plates with ribs reinforces

Barchenkova N.A., Maltsev A.R.

Voronezh, Plexanovskaya street, house 22, apt. 358

The work formed the spatial finite element model to perform calculations VAT uniform hinged on a contour plate with longitudinal ribs on the uniform load using PVK SCAD. Parameters plate: 7.2 × 6.0 × 0.14 m 3, E = 33.1 GPa, ν = 0.2, the cross section of ribs 0.08 × 0.08 m2. The intensity of a uniform load of 20 kPa. To select the most optimal design scheme were considered five options:

1 shell - core, where the plate is represented by a set of 41 CE, and reinforcing rib - FE 10; the shell and the rod are combined rigid inserts. The model allows to estimate the VAT only plate to obtain the values of stresses in the rib-rod directly into PVK SCAD impossible.

2 shell - beam-wall where the stove is modeled by a set of CE 41 and rib - FE 21 FE-wall bar in the model reflects the incorrect VAT edges, since the beam-wall only one transverse dimension should be substantially less than its length. The calculation of the moments in the ribs in PVK SCAD is not provided.

3 surround the body - the body of the volume, where the plate edges and modeled by a set of CE 31. The first disadvantage of the model is that the STC SCAD does not provide visualization of moments. The second can be attributed a significant increase in stiffness. A third drawback: when calculating stresses arise from pressure of the fibers in the vertical direction, which is usually neglected in the plates.

4 shell - surround the body, where the plate is represented by a set of CE 41, and ribs - a set of finite element model 31. The disadvantage is that the STC SCAD does not include display values of the moments in the bulk body.

5 shell - shell plate where the ribs and presented a set of finite element 41. In this model, in PVK SCAD as well traced VAT slabs and ribs. According to the results of numerical studies of selected model 5 "shell-shell" because the greatest simplicity of its formation, validity and amount of output data for assessing VAT slab. The proposed design finite element model can be used in engineering practice and the learning process for calculating the gain slabs and more in-depth studies of floors of buildings with high load.

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