"Span Detailing" is the process of determining the peak reinforcement requirements in a region (normally support or mid-span) and then extending the reinforcement based upon code or user defined rules.

Code based span detailing are rules prescribed by the applicable building code. The detailed reinforcement for these spans can be non-symmetrical depending upon whether or not the span is continuous. The Code span detailing option uses the applicable code rules for continuous and end spans (as well as cantilevers), where applicable. RAM Concept 's Code span detailing generally implements some, but not all, of the specified detailing rules for a code. Refer to the code span detailing sections for further information (Sections 53.1.3, 53.1.4, 53.1.6 and 53.1.7).

User defined span detailing rules are controlled via the following screen accessed via Criteria > Detailing Rules.

A, B, and C represent different sets of reinforcement used to detail rebar in the support region. E, F, and G represent different sets of reinforcement used to detail rebar in the span region. Each set of reinforcement has an associated "fraction" which is the amount of the peak reinforcement quantity to assign to that set. The sum of the three fractions should always be between 0 and 1. The R1, R2 values represent factors to be multiplied by the span length to arrive at a set's desired bar lengths.

Span detailing in accordance with user rules is always symmetrical in a span (but not in a cantilever). The "R1" value is applied to the cantilever such that the cantilever is assumed to be that portion of a full span up to the point of contraflexure, assumed to be 20% of a continuous span's length (hence the factor of 5 applied to Lc).

Span Detailing is controlled via the span segment dialog. See Column Strip tab.