# Not Covered Reinforcement on Members | Concrete Design in RFEM 6 and RSTAB 9

### Although all the member design checks have been fulfilled, I get the "Not Covered Reinforcement" result. What is the reason?

It can happen that all design checks are fulfilled for a particular member or set of members, but a "Not Covered Reinforcement" result is still output. See also Image 01 and Image 02.

The reason for this is that the distribution of the "Provided Reinforcement" on the upper and lower positions is generated from the rebar arrangement within the cross-section.

The rebars above the center of gravity are assigned to the "upper position" and the rebars below the center of gravity are assigned to the "lower position". This means that the distribution of the "Provided Reinforcement" does not consider the actual distribution of the zero line within the cross-section, and checks which rebar is actually in the tension zone.

However, the actual distribution of the zero line within the cross-section is checked during the design. Thus, the rebars that have been geometrically assigned to the "lower reinforcement" (the provided reinforcement distribution) can be mathematically assigned to the tension reinforcement. This can be seen in Image 03. The rebars marked in red have been assigned geometrically to the lower reinforcement. However, the stress distribution within the cross-section shows that they are also subjected to tension and apply to the design checks accordingly. In the design, all members (marked in red and green in Image 03) are applied. Therefore, all the design checks are fulfilled at this location, although the distribution of the "Not Covered Reinforcement" suggests otherwise.

#### Keywords

Write Comment...

Write Comment...

• Views 333x
• Updated 18 July 2022

Submit Individual Question

Eurocode 5 | Timber Structures According to DIN EN 1995-1-1

Online Training 8 December 2022 9:00 AM - 1:00 PM CET

RFEM 6 | Students | Introduction to Reinforced Concrete Design

Online Training 12 December 2022 4:00 PM - 5:00 PM CET

Stress Analysis of Surfaces and Members in RFEM 6

Webinar 15 December 2022 2:00 PM - 3:00 PM CET

New Features in RFEM 6 und RSTAB 9

Webinar 21 December 2022 2:00 PM - 3:00 PM CET

RFEM 6 | Basics

Online Training 19 January 2023 9:00 AM - 1:00 PM CET

Modeling and Design of CLT Panels in RFEM 6

Webinar 19 January 2023 2:00 PM - 3:00 PM CET

Eurocode 2 | Concrete Structures According to DIN EN 1992-1-1

Online Training 26 January 2023 9:00 AM - 1:00 PM CET

Eurocode 3 | Steel Structures According to DIN EN 1993-1-1

Online Training 2 March 2023 9:00 AM - 1:00 PM CET

Eurocode 5 | Timber Structures According to DIN EN 1995-1-1

Online Training 16 March 2023 9:00 AM - 1:00 PM CET

RFEM 6 | Dynamic Analysis and Seismic Design According to EC 8

Online Training 30 March 2023 9:00 AM - 1:00 PM CEST

Geotechnical Analysis with Construction Stages in RFEM 6

Webinar 1 December 2022 2:00 PM - 3:00 PM CET

RFEM 6 | Students | Introduction to Timber Design

Online Training 25 November 2022 4:00 PM - 5:00 PM CET

RFEM 6 | Dynamic Analysis and Seismic Design According to EC 8

Online Training 23 November 2022 9:00 AM - 1:00 PM CET

RFEM 6 | Students | Introduction to Reinforced Concrete Design

Webinar 21 November 2022 4:00 PM - 5:00 PM CET

RFEM 6 | Students | Introduction to Reinforced Concrete Design

Online Training 21 November 2022 4:00 PM - 5:00 PM CET

Eurocode 3 | Steel Structures According to DIN EN 1993-1-1

Online Training 17 November 2022 9:00 AM - 1:00 PM CET

Interfaces with RFEM 6 Briefly Presented: Archicad and SAF

Webinar 16 November 2022 2:00 PM - 3:00 PM CET

Length 1:05 min

Length 1:02:25 min

Length 0:58 min

Length 49:14 min

Length 53:58 min

Length 1:06:16 min

Length 58:12 min

Length 1:27 min

Length 1:04 min

Length 0:51 min

Length 1:18 min