STAAD Optimizer: A Practical Guide to Section Search and Review

The is a Windows application that works with your own installed STAAD.Pro. It reads selected model members and analysis results, then searches built-up tapered I-sections within limits you control. The result is a candidate for engineering review—not an automatic design approval.

1. Prepare the STAAD model

• Open the correct model in STAAD.Pro and run its analysis after the latest change. Stale results cannot support a reliable search.
• Assign the members to be searched as built-up TAPERED I-sections. Check the steel design parameters, including yield strength, effective lengths, and unbraced lengths.
• Confirm the design code and load combinations in the STAAD input. The desktop app supports IS 800:2007 and AISC 360-10 paths; choose the code that matches the model.
• Select only the members you intend to import. A clean frame or a small test group is easiest for a first run.

2. Open the app and confirm access

Run STAAD.Pro and the optimizer under the same Windows account and privilege level. In the optimizer, use Access to import a StruTools key file, or use the administrator website launch when signed in as an admin. A key can be shared, but only one optimizer seat and one active optimization job are allowed for each key at a time. Customer passes are not yet on sale while engineering verification continues.

3. Import selected members

Choose Import Selected in the desktop app. Check the model name and the member and node counts. The app reads geometry, assigned sections, available design parameters, and load information. It organizes imported members into frames and surfaces where the geometry supports it. Inspect that grouping before running a search.

4. Set a buildable search space

Open Settings → Design Search. Set minimum and maximum web depths and flange widths, their increments, and the web and flange plate thicknesses your shop can actually use. Set a target utilization ratio appropriate to the project. These are defaults; the Restrictions workspace can narrow individual surfaces or members. A smaller, realistic search space is easier to review and typically faster to run.

In the Inputs workspace, review the detected design code, load range or envelope, output units, and yield strength. In Frames and Surfaces, confirm that every member intended for optimization belongs to the right fabrication run. Add splices and same-size or straight-member restrictions only where the physical design requires them.

5. Run and inspect the candidate

Choose Run Optimization. The app checks its inputs and current STAAD connection before searching. Stop cancels a run without applying candidate sections. In Results, inspect each proposed section, weight, governing utilization, and warnings. Use the model-view labels and Check Model workspace to compare the proposal with STAAD's own analysis and design output when available.

6. Verify before saving

A section change can redistribute forces. If you approve a candidate, apply it to a working copy, run STAAD analysis again, and check strength, serviceability, stability, drift, deflection, detailing, and project-specific constraints. Save the final .STD model from STAAD.Pro only after your engineering review. The current search produces a candidate for review; it does not independently verify a final design or guarantee a global optimum or a particular weight saving.