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Software Verification Examples for SCADA Pro

49

B2.3. Square Plate with

Internal Supports

Problem Description

A two dimensional square plate with internal supports, subjected to vertical loading is

examined (Figure B2.3.1).

Geometry, Properties and Loads

The plate of overall dimensions 10.00m x 10.00m has 20cm thickness with four internal

supports. All boundary of the plate (externally and internally) are simply supported.

Material is reinforced concrete of modulus of elasticity 29GPa and Poisson ratio ν=0.20.

Τhe concrete strength class is C20/25 while the class of reinforcing steel is B500C. The

centre distance of the reinforcement from the plate edge is 20mm.

Τhe plate is subjected to its self-weight (ε

c

=25.0kN/m

3

), to a uniformly distributed

permanent load 2kN/m

2

and to a uniformly distributed variable load 5kN/m

2

.

Two One case of loading combinations are examined. In the first one (Comb1) the value of

the participation factor of all loads is equal to 1.0. In the second case (Comb2) the

participation factor of permanent loads is equal to 1.35 while the corresponding one of the

variable load is equal to 1.50.

For the analysis of the plates two cases are studied. According to the first one (Case1) the

system is analyzed using “Markus Tables” [9], which are usually applied in engineering

practice. In the second case (Case2), the system is analyzed using plate finite elements.

Figure B2.3.1. Square Plate with Internal Supports.