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The reinforced concrete linear elements are usually characterized by square, rectangular or circular cross-sections. Advance Design computes the reinforcement for such elements with the Reinforced Concrete (RC) Design expert. For irregular, user defined cross sections, the RC design falls outside the standard procedure. Therefore, the real reinforcement may be determined following an iterative process, as described in the next steps:

1. Add a new user defined cross-section - follow the steps from Figure 1

Manage used cross-sections and add a new one, user defined

Figure 1 - Steps to define a new user section

 

2. Define the cross-section geometry (shape and reinforcement position) and material in the Cross Sections module: draw the shape by point coordinates, define the reinforcement (automatic or manually) and concrete cover, define the material and calculation settings.

Note: It is recommended to define the initial reinforcement from the minimum reinforcement area.

define reinforcement section designer cross sections module

Figure 2 - Define the cross-section shape and place the reinforcement

 

3. Set parameters and calculate the cross-section properties

calculation settings method

Figure 3 - Calculation settings

 

4. Export the cross-section to the Advance Design library

export cross-section to Advance Design library manager

Figure 4 - Close and export the cross-section to Advance Design library

 

5. The user defined section is attributed to the desired linear elements (columns). Run FEM and RC Design analysis.

 

6. On the selected element, check the RC design - element reinforcement results. The real reinforcement (imposed) can be compared to the theoretical reinforcement (computed). The verification can be observed on the interaction curves also. The section solicitation point should fall inside and close to the capacity curve (My/Mz, Fx/My, Fx/Mz), for a safe and economic design. If the imposed reinforcement does not satisfy these conditions, the initial reinforcement is increased: restart from Step 2.

check section reinforcement My-Mz, N-M interaction capacity curve

Figure 5 - Check the proposed reinforcement

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