What it does
133·fy−24)·db, floor 300). Straight tension uses the workbook's tabulated nominal diameters; hook and compression use db=√(4·Ab/π). Includes an interactive SVG reinforcement detail (lap/splice, hook, and compression-lap views with development/Class A/Class B and development/splice toggles, fit-to-view, zoom, pan), an all-bar comparison table mirroring the spreadsheet, a formula-substitution calculation breakdown, project-scoped saving with revisions and review status, and copy/CSV/JSON/print export.
What it does not do
Preliminary screening / design aid only. xlsx'; that workbook is the governing source and is not modified. It cites no code edition or clause, so none is implied.
Factor selections (k1-k4, splitting, hook cover/confinement, concrete/epoxy, bundle) are engineer inputs - the tool warns but never auto-overrides them. The hook view is a development-length diagram, not a bar-bending schedule. Outputs are unreviewed unless marked reviewed by the engineer and do not establish final design adequacy.
How to use it
Use for preliminary development-length and lap-splice sizing and review-package preparation. Confirm the governing code edition, factor selections, and bar geometry, and obtain engineer sign-off before any construction use.
