Engineering library update (April 2026)
Tekla Tedds Engineering Library update (April 2026 - version 28.01) is available in Trimble Downloads.
American Design
Footing analysis and design (ACI318)
Enhanced calculation provides more transparency and flexibility with:
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Design for footings with uplift and biaxial moment.
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Allow design of footing when analysis results fail.
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Providing access to the analysis model for interrogation.
Steel 2D analysis & design (AISC360), Steel member analysis & design (AISC360), Steel member design (AISC360)
Enhanced calculation improves user experience by adding flexibility and clarity including improved visibility for summary table output, improved options for defining lateral restraints and other maintenance.
Other updates
| Footing analysis & design (ACI318) | |
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| TEDDS-10011 | Fixed incorrect overall utilization ratio and status when combined sliding check fails. |
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Masonry lintel design (TMS/MSJC) Masonry lintel analysis & design (TMS/MSJC) |
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| TEDDS-8411 | Corrected validation error when shear reinforcement was not required. |
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Steel 2D analysis & design (AISC360) Steel member analysis & design (AISC360) Steel member design (AISC360) |
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|---|---|
| TEDDS-10133 | Corrected error that reversed analysis diagram results for vertical members. |
| TEDDS-9464 | Corrected an error where changing the section type for one span of a multi-span member with different section types would change all spans to the same section type. |
| TEDDS-9045 | Correct expression error for HSS member slender in flexure. |
| TEDDS-6167 | Enabled summary table output independent of Output type selected. |
| TEDDS-5872 | Corrected undefined variable error associated with batch design of compression members. |
| TEDDS-222 | Summary tables for all spans now appear at the start of the member design output. |
| Steel beam analysis & design (AISC360) | |
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| TEDDS-7810 | Corrected undefined variable error, 'M_{nwb}', associated with design of HR sections. |
| Wind loading (ASCE7) | |
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| TEDDS-10046 | Fixed incorrect height for auto-generated Component and Cladding cases for hipped roofs when height was greater than 60 ft. |
| TEDDS-9995 | Fixed undefined zcc error for auto-generated wall cases to the Components and Cladding Method when height was greater than 60 ft and significant topography. |
Australian Design
Steel 2D analysis & design (AS4100), Steel member analysis & design (AS4100), Steel member design (AS4100)
Enhanced calculation improves user experience by adding flexibility and clarity including improved visibility for summary table output, improved options for defining lateral restraints and other maintenance.
Other updates
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Steel 2D analysis & design (AS4100) Steel member analysis & design (AS4100) Steel member design (AS4100) |
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|---|---|
| TEDDS-10133 | Corrected error that reversed analysis diagram results for vertical members. |
| TEDDS-9464 | Corrected an error where changing the section type for one span of a multi-span member with different section types would change all spans to the same section type. |
| TEDDS-6167 | Enabled summary table output independent of Output type selected. |
| TEDDS-5872 | Corrected undefined variable error associated with batch design of compression members. |
| TEDDS-222 | Summary tables for all spans now appear at the start of the member design output. |
British Design
No updates.
Canadian Design
No updates.
Eurocode Design
Steel 2D analysis & design (EN1997), Steel member analysis & design (EN1997), Steel member design (EN1997)
Enhanced calculation improves user experience by adding flexibility and clarity including improved visibility for summary table output, improved options for defining lateral restraints and other maintenance.
Other updates
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Steel 2D analysis & design (EN1993) Steel member analysis & design (EN1993) Steel member design (EN1993) |
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|---|---|
| TEDDS-10133 | Corrected error that reversed analysis diagram results for vertical members. |
| TEDDS-9464 | Corrected an error where changing the section type for one span of a multi-span member with different section types would change all spans to the same section type. |
| TEDDS-9431 | Corrected error with compression effective length factors not updating correctly. |
| TEDDS-6167 | Enabled summary table output independent of Output type selected. |
| TEDDS-5872 | Corrected undefined variable error associated with batch design of compression members. |
| TEDDS-222 | Summary tables for all spans now appear at the start of the member design output. |
| Steel beam analysis & design (EN1993) | |
|---|---|
| TEDDS-8120 | Corrected error associated with missing library item, 'Lateral restraint subs'. |
| Timber frame racking panel design (EN1995) | |
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| TEDDS-9840 | Corrected pass/fail statement for racking strength in the user interface when the racking strength was less than zero, due to large opening. |
| TEDDS-9389 | Updated PD6693 reference in the output |
| Wind loading (EN1991) | |
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| TEDDS-9996 | Corrected dynamic factor cd when structural damping is 0.025. |