HRC Designer User Manual¶
Version 4.3 · September 2026
HRC Designer is free desktop software for the analysis and design of fiber reinforced concrete (FRC), hybrid reinforced concrete (HRC), ultra-high-performance concrete (UHPC) and textile reinforced concrete (TRC) sections, with built-in inverse analysis of flexural test data. This manual walks through every module step by step.
Which version this manual describes¶
The available download is HRC Designer 4.3, released September 3, 2026. This manual also documents the revised EN 14651 measured-CMOD workflow listed as Unreleased in the release notes. Those sections are marked so they can be distinguished from the released software. For a first run, use the supplied ASTM C1609 tutorial project.
How to read this manual¶
- Every module page follows the same order: what you need, the input tabs step by step, the result tabs, export, and a worked example.
- Each numbered step in the text carries a red badge that matches the callout drawn on the screenshot beside it. Click any screenshot to zoom.
- Inputs are listed in both unit systems. Use the SI units and US units tabs.
- The search box at the top finds any input name, tab, dialog or error message.
Modules at a glance¶
| Module | Test or member | Material law | Result tabs |
|---|---|---|---|
| ASTM C1609 & similar | Unnotched beam, 4-point or 3-point bending | Strain-based tension law | Moment-Curvature, Moment-Strain, Load-Deflection, Stress Profile |
| EN 14651 & similar | Notched beam, 3-point bending | Crack-width tension law | Moment-Rotation, Moment-Crack Width, Load-CMOD, Flexural Stress-Crack Width, Stress Profile |
| TRC | Unnotched textile reinforced laminate | Strain-based tension law with textile layers | Moment-Curvature, Moment-Strain, Load-Deflection, Stress Profile |
| Hybrid beam analysis | Rectangular FRC, UHPC or HRC beam with rebar | Tension, compression and steel laws | Moment-Curvature, Moment-Strain, Load-Deflection, Stress Profile, Force Profile |
| FRP rebar and strengthening | Beam with FRP bars and a bonded FRP laminate | Tension, compression, bar and laminate laws | Moment-Curvature, Moment-Strain, Load-Deflection, Stress Profile, Force Profile |
| Cross-sectional analysis | Any polygon section, prestressed or not | Multi-linear concrete, rebar layers, tendons | Moment-Curvature, P-M Diagram, Load-Deflection, Stress Profile, Force Profile |
Citing the software¶
Patel, D. D., Pleesudjai, C., Neithalath, N., and Mobasher, B. (2026). Limit-state based design of hybrid reinforced UHPC flexural beams using parametric modeling. Engineering Structures, 357, 122353. doi:10.1016/j.engstruct.2026.122353
Patel, D., Pleesudjai, C., Bakhshi, M., Nasri, V., and Mobasher, B. (2025). Back-calculation of mechanical properties of fiber-reinforced concrete in tunnel lining segments. Structural Concrete, 26, 6019–6040. doi:10.1002/suco.70052
The full list of papers behind each module is on the Papers page. Questions and problem reports go to dpatel52@asu.edu, or use Help → Email Support inside the software.