It is possible to select only peripheral reinforcement for designing a rectangular cross-section. What is the reason?


If any circular cross-sections are available in a structure, they can only be designed with peripheral reinforcement (Figure 01). This is due to the fact that there is no "top" and "bottom" for a circular cross-section.

Only one reinforcement layout can be defined for each reinforcement group in RF-CONCRETE Members. If the circular cross-section and the rectangular cross-section are designed together, only the peripheral reinforcement can be used for all cross-sections.

To avoid this restriction, you have to define another or separate reinforcement group (Figure 02).


Reinforcement layout Peripheral Circular cross-section


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