| S.No. | Checkpoint | IS Requirement | Status |
|---|---|---|---|
| A. MEASUREMENT SETUP AND INSTRUMENTATION | |||
| A1 | Displacement measurement devices calibration Acceptance: LVDT/dial gauges calibrated; accuracy ±0.5 mm; certification current; zero check performed | Cl. 8.3 — Accurate measurement required | OK NC NA HOLD |
| A2 | Measurement point locations and datum establishment Acceptance: Points at mid-span, 1/4-span, 3/4-span; reference datum established away from structure | Cl. 8.3 — Points at critical sections | OK NC NA HOLD |
| A3 | Transverse measurement profile setup Acceptance: Measurements at centerline and 1/4-width both sides; minimum 3 points across deck width | Cl. 8.3 — Deflection profile across width | OK NC NA HOLD |
| A4 | Data acquisition system verification Acceptance: Data logger tested and operational; sampling rate adequate; time synchronization verified | Cl. 8.3 — Data recording accurate | OK NC NA HOLD |
| B. MID-SPAN DEFLECTION MEASUREMENTS | |||
| B1 | Unloaded baseline deflection (zero load) Acceptance: Recorded with no applied load; used as baseline for all subsequent measurements | Cl. 8.3 — Reference measurement | OK NC NA HOLD |
| B2 | Deflection at 25% of design load Acceptance: Deflection recorded at equilibrium; time to stability noted; measurement ±0.5 mm accuracy | Cl. 8.3 — Progressive load measurement | OK NC NA HOLD |
| B3 | Deflection at 50% of design load Acceptance: Deflection proportional to load; linearity check; no anomalies observed | Cl. 8.3 — Mid-point measurement | OK NC NA HOLD |
| B4 | Deflection at 100% of design load Acceptance: Deflection ≤ L/250 (where L = span length); recorded after 30 min load application | Cl. 8.3 — Full load measurement | OK NC NA HOLD |
| B5 | Creep and time-dependent deflection Acceptance: Deflection monitored at 1, 5, 10, 30 minutes under sustained load; creep ≤ 5% of elastic deflection | Cl. 8.3 — Sustained load response | OK NC NA HOLD |
| C. TRANSVERSE DEFLECTION PROFILE | |||
| C1 | Deflection symmetry across deck width Acceptance: Deflection symmetric about centerline; difference left–right ≤ 10% | Cl. 8.3 — Load distribution verified | OK NC NA HOLD |
| C2 | Edge beam vs. interior beam deflection Acceptance: Interior beams deflect more than edge beams; ratio within 1.0–1.3 range | Cl. 8.3 — Load distribution to members | OK NC NA HOLD |