Punching shear database and analysis code for opening-adjacent slab–column connections

Experimental database, analysis code and design tool accompanying the article "Capacity loss and recovery at opening-adjacent slab–column connections: a closed-form design equation with partial factors". The database contains 296 records compiled from 33 experimental studies, of which 80 specimens from 11 studies enter the model set after definition harmonisation and scope filtering. All exclusion decisions are documented in the accompanying log. The package includes the full analysis pipeline, the reference implementation of the proposed equation, and a single-file browser tool for design calculations. Frozen dataset checksum: sha256[:16] = 9df2366017ff721d. Version 2 (13 August 2026). This version corrects two defects in version 1. First, the analysis chain now runs end to end from the archive: four derived intermediate files that the scripts read were missing and are now included, and the pipeline has been verified in a clean directory (24 steps completed, 0 errors). Second, docs/notation_EN.md and tools/web/README.md quoted partial factors and a worked example from before a correction to the cross-validation of the calibration constant; both now agree with the calculation tool. database_v3_frozen.csv is unchanged in both versions and remains the authoritative record.