Preview

Pier Cap STMSTMSmartDesign

Purpose

Automated strut-and-tie modelling and design for reinforced concrete deep beams.

Key features

  • Automatic truss generation. The strut-and-tie model builds itself from the geometry and loads, in a live preview as you type, with no node by node modelling.
  • Interactive modelling. Add or remove members by selecting nodes, change the loads, and the analysis results update at once. Auto-Panel Subdivision adds the verticals and chord nodes for you.
  • Flexible geometry. Model sloped chords, several bearing lines and pier cap pedestals.
  • Indeterminate reactions. Choose between the continuous beam and bent frame methods.
  • AASHTO LRFD BDS design checks. Struts, ties and nodal zones (CCC, CCT and CTT) are checked, each with its code reference and demand to capacity ratio (D/C).
  • Complete reinforcement design. Required tie steel, bar spacing, bundled bars, crack control and anchorage. Choose the bars and every D/C updates, then see the typical section with every bar placed.
  • Shear and bearing checks. Shear serviceability and diagonal cracking are evaluated automatically per AASHTO LRFD BDS.
  • Built-in model validation. Flags unstable configurations and likely modelling issues, and shows whether the truss is determinate, before you move on to design.
  • Excel import and export. Keep model inputs in Excel to manage data, track revisions and reuse models.
  • One-click calculation reports. Generates a detailed PDF calc package with the calculations and code references.
  • SAP2000 integration. Exports the model as an .s2k file for independent verification.

Covers deep beams, including pier caps, and pile caps. Runs as a Windows desktop app.

Inputs and outputs

Inputs

  • Pier cap geometry
  • Bearing locations and loads
  • Material properties
  • Support conditions
  • Analysis method
  • Reinforcement details
  • Truss member adjustments
  • Excel import

Outputs

  • Auto-generated truss model
  • Support reactions
  • Member forces
  • Strut and nodal zone checks
  • Tie reinforcement design
  • Anchorage and crack control checks
  • Shear and bearing checks
  • AASHTO LRFD BDS code checks
  • PDF calculation report
  • SAP2000 (.s2k) export
  • Excel input export

See it in action

Recorded in the STMSmartDesign desktop app with a demo model.

Availability

This is a preview of Pier Cap STM. The calculation application is not available from this site yet.

Calculations run in the separate application. This overview does not calculate or display engineering results.