Introduction to STAAD Advanced Concrete Design (RCDC)
Learning Objectives
- Identify STAAD Advanced Concrete as Bentley's current concrete-design product lineage formerly known as RCDC.
- Distinguish currently advertised Advanced Concrete capabilities from broader STAAD.Pro Advanced, STAAD Foundation Advanced, and legacy/version-specific RCDC-FE workflows.
- Explain why a successful STAAD.Pro analysis is a prerequisite rather than a substitute for concrete design/detailing.
- Distinguish analytical actions and required reinforcement from constructible discrete reinforcement.
- Explain member grouping, detailing preferences, warnings, engineer review and revision traceability.
- Describe how drawings/schedules/quantities emerge from an accepted design/detailing workflow where supported by the installed product/version.
Current Bentley product map โ verify the installed release
Bentley's current public STAAD Advanced Concrete page describes the product as formerly RCDC and explicitly advertises automated design of beams, columns and walls, with detailed beam/column drawings and bar-termination geometry. Bentley's broader STAAD.Pro Advanced family page advertises reinforced-concrete design/detailing for beams, columns, footings, pile caps, walls and slabs. Bentley also maintains STAAD Foundation Advanced for foundation analysis/design. Older Bentley material documents RCDC-FE slab/mat workflows. This course therefore teaches the engineering handoff while requiring students to confirm which module/workflow their installed release and license actually supports.
STAAD Advanced Concrete / RCDC
A downstream reinforced-concrete design/detailing workflow that consumes validated structural-analysis information and helps convert design demand into physical member reinforcement and documentation. Exact supported elements, codes, drawings and import/update behavior are product/version/license dependent.
The Analysis-to-Detailing Boundary
STAAD.Pro analytical result
An analysis model produces geometry/connectivity, displacements, reactions and member/element actions for defined load cases/combinations. Those results are mathematical demand; they are not construction reinforcement by themselves.
Concrete design/detailing result
A downstream concrete workflow applies the selected design standard and detailing preferences to physical engineering entities. Final deliverables may include required/provided reinforcement, discrete bar arrangement, grouping, anchorage/termination geometry, drawings and reports/schedules as supported by the installed product.
Verification-First Handoff
STAAD.Pro โ Advanced Concrete/RCDC
- Accept the analysis model: geometry, properties, supports, loading, combinations, equilibrium, deformed shape and solver warnings have passed QA.
- Record the source revision: identify the analyzed STAAD model and software release used.
- Confirm supported physical-entity mapping: verify beam/column/wall/other supported entities, levels, connectivity, dimensions, materials and action envelopes.
- Set the design basis: governing concrete standard/edition, materials and design parameters supported by the installed workflow.
- Set detailing preferences: cover, preferred bar diameters, grouping/standardization, spacing and other project rules.
- Run design and inspect warnings: review governing actions and failed checks rather than accepting automatic output blindly.
- Review physical reinforcement: required vs provided steel, bar fit, spacing/layers, confinement, anchorage/termination, continuity and constructability.
- Generate/review deliverables: drawings/reports/schedules/quantities where supported.
- Propagate revisions: if STAAD geometry, stiffness, support, load or analysis changes, re-analyze and reconcile affected concrete design/detailing before reissue.
STAAD Advanced Concrete / RCDC Learning Lab
A product-aware teaching bridge from verified STAAD actions to concrete design/detailing, foundation coordination, and quantity checking.
Required Steel vs Discrete Bars
Provided area for n equal bars
Basic geometric quantity check; complete reinforcement adequacy depends on the governing design/detailing standard.
Variables
| Symbol | Description | Unit |
|---|---|---|
| Number of bars | - | |
| Nominal bar diameter | - | |
| Provided nominal steel area | - |
Area sufficiency is only one gate
A selected bar set must fit the section and satisfy the applicable minimum/maximum reinforcement, clear spacing, cover, anchorage/development, lap/splice, confinement and seismic/detailing provisions. A numeric match alone is not constructible design.
STAAD Advanced Concrete / RCDC Learning Lab
A product-aware teaching bridge from verified STAAD actions to concrete design/detailing, foundation coordination, and quantity checking.
Development, Anchorage and Curtailment
Development / anchorage requirement
The design-standard-dependent length or mechanical anchorage needed to transfer bar force safely into the surrounding concrete. It depends on bar/material properties, concrete strength, cover/spacing/confinement, casting/location conditions and other code-defined factors.
No timeless development-length coefficient
Development and splice equations change by governing standard and edition. The course teaches the variables and verification logic; project values must come from the current applicable design standard and supported software implementation.
Curtailment follows demand plus detailing rules
A force/moment envelope can show where reinforcement demand decreases, but bars cannot simply terminate at the theoretical demand crossing. Required extension, development, minimum reinforcement, support/joint geometry and constructability still govern.
Grouping and Standardization
Why grouping exists
Standardizing similar members can reduce drawings, fabrication variation and site errors. Grouping is safe only when compatible geometry/material/detailing constraints are used and the common detail covers the controlling member/case without hiding an exception.
Concrete design/detailing review
- Source STAAD revision and software release recorded.
- Current product/module supports the intended physical entities/workflow.
- Governing concrete standard/edition recorded.
- Imported mapping and action envelopes reviewed.
- Required vs provided reinforcement checked.
- Spacing, cover, layer arrangement and congestion reviewed.
- Anchorage/development/termination and splice regions reviewed.
- Grouping does not hide a critical member.
- Failed checks/warnings are resolved before issue.
- Drawings/reports/schedules/quantities reference the same final revision.
Course Product Boundaries
Topic 11 โ beams and columns
Focuses on current Advanced Concrete/RCDC beam/column design-detailing concepts, interaction demand, grouping and constructability.
Topic 12 โ slabs, walls and foundations across the STAAD family
Uses walls as a current Advanced Concrete element, while teaching slabs and foundations through the appropriate current STAAD.Pro Advanced / STAAD Foundation Advanced path and explicitly identifying legacy/version-specific RCDC-FE workflows where historically relevant.
Topic 13 โ drawings, schedules and quantities
Covers the data contract from final discrete reinforcement to drawings/BBS/BOQ concepts. Exact automated deliverables depend on the installed Bentley product/version.
- STAAD Advanced Concrete is Bentley's current product lineage formerly known as RCDC.
- Current public product scope and older RCDC/RCDC-FE capabilities must not be conflated.
- Downstream concrete design begins only after STAAD analysis is verified.
- Required steel area is not a construction drawing.
- Automatic grouping/detailing remains subject to governing-code and constructability review.
- Revision traceability must extend from analysis through every issued concrete deliverable.