PSI - Issue 59

Mykhailo Hud et al. / Procedia Structural Integrity 59 (2024) 697–701 Mykhailo Hud et al. / Structural Integrity Procedia 00 (2024) 000 – 000

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Fig. 1. Finite element model of the stiffening diaphragm.

As a result of the analytical calculation, it was determined that with the standard reinforcement method, it is necessary to use reinforcement rebar class A400S with a diameter of 12 mm, with a spacing of 200 × 200 mm in two grids. The reinforcing bars are arranged perpendicularly to each other (Figure 2). This method of reinforcement is most widely used in reinforced concrete stiffening diaphragms.

Fig. 2. Reinforcing frame with a standard bar arrangement.

The diagonal reinforcement method involves the insertion of additional bars (Figure 3). In such a frame rods are additionally installed in the diagonal direction. This allows for maximum convergence of the reinforcement area with the standard reinforcement method. For this reason, rebar with a diameter of 10 mm was used. The spacing of the inter-perpendicular bars in both methods is identical. No additional diagonal bars were installed between the reinforcement grids.