RAM Concept Design Status Failure: 8.6.1.1

RE: RAM Concept Design Status Failure: 8.6.1.1

Stephen Figueira — Tue, 18 Jun 2019 18:43:35 GMT

Thank you

RE: RAM Concept Design Status Failure: 8.6.1.1

Seth Guthrie — Tue, 18 Jun 2019 18:23:47 GMT

In the Audit I see:

Two-way slab in critical span region - checking 2 * h spacing limit (per 8.7.2.2).
Checking 8.6.1.1
Ac 797.5 in²
Reinforcing Ratio (using all reinforcement) 0.002207
Modified Reinforcing Ratio (fy > 60 ksi) 0.002207
Maximum allowed bar spacing 18 inches
Maximum actual bar spacing 19.94 inches

What's happening is illustrated below:

You can ignore it since your spacing is literally 18" OC (or turn off code min design rule).

RE: RAM Concept Design Status Failure: 8.6.1.1

Stephen Figueira — Tue, 18 Jun 2019 17:56:46 GMT

communities.bentley.com/.../Roof_5F00_partial.cpt

RE: RAM Concept Design Status Failure: 8.6.1.1

Seth Guthrie — Tue, 18 Jun 2019 17:49:27 GMT

At 18" spacing some strips may have one fewer bars than you expect based on average steel area and the program uses the literal number of bars. So in this case. 1.76 in^2 / (10" * 79.75") = 0.0022, but that still ought to work. Can you send the file?