| S.No. | Checkpoint | IS Requirement | Status |
|---|---|---|---|
| A. TEST SETUP & INSTRUMENTATION | |||
| A1 | Member geometry confirmed: Dimensions (length, width, height) measured; cross-section consistent with design drawings Acceptance: Dimensions measured at 3 locations; Match drawings (±10mm); Material inspected visually | Cl. 3 — Member identification | OK NC NA HOLD |
| A2 | Material strength verified: Concrete strength via rebound hammer or core samples; Steel yield proof via tensile test (if required) Acceptance: Concrete: Schmidt rebound ≥per design (M25/M30/etc.); Core samples: f'c matches spec; Steel: Properties per grade | Cl. 4 — Material verification | OK NC NA HOLD |
| A3 | Loading system prepared: Jack capacity ≥1.5× design load; load cells calibrated within last 12 months; accuracy ±2% Acceptance: Jack capacity adequate; Load cell cert provided; Calibration current; No overload risk | Cl. 5 — Load application apparatus | OK NC NA HOLD |
| A4 | Measurement instruments installed: Linear Variable Differential Transformer (LVDT) or dial gauges at mid-span and supports; 3 minimum Acceptance: LVDT/gauges installed at mid-span, quarter-span, support; Reference frame stable; Baseline recorded | Cl. 6 — Deflection measurement | OK NC NA HOLD |
| A5 | Strain gauges installed on reinforcement / steel at critical sections if detailed stress analysis required Acceptance: Gauges bonded per procedure; Leads protected; Zero reading confirmed; Data logger connected | Cl. 7 — Stress measurement (optional) | OK NC NA HOLD |
| B. PRE-TEST VERIFICATION | |||
| B1 | Design load capacity of member determined from design calculations; serviceability limit state deflection limit (typically L/250) noted Acceptance: Design moment/shear from calculations; Allowable deflection per code stated; Test criteria documented | Cl. 8 — Design basis | OK NC NA HOLD |
| B2 | Test load determined: Typically 1.0× design live load + 0.5× dead load, or as per specific test plan; not exceeding design capacity Acceptance: Test load ≤design capacity; Reasonable for member (not over-test); Justified in test plan | Cl. 9 — Test load selection | OK NC NA HOLD |
| B3 | Support conditions verified: Bearing surfaces smooth, level, stable; load distribution plates sized (min 150×150 mm for point loads) Acceptance: Supports level (±5mm); Plates adequate size; No rocking or slippage; Stable during test | Cl. 10 — Support adequacy | OK NC NA HOLD |
| B4 | Safety barriers established: Test area cordoned off; personnel kept away during loading; emergency stop procedures documented Acceptance: Area secured; Safety plan reviewed; Emergency contact available; Liability insurance confirmed | Cl. 11 — Safety measures | OK NC NA HOLD |
| C. LOAD APPLICATION & MONITORING | |||
| C1 | Initial readings taken: Deflection gauges zeroed; load cell zeroed; temperature & humidity recorded for reference Acceptance: All gauges show zero/baseline; Temperature recorded; Readings documented in test log | Cl. 12 — Baseline | OK NC NA HOLD |
| C2 | Load applied in increments: Typically 25%, 50%, 75%, 100% of test load; at each level hold 2-3 minutes for stabilization Acceptance: Increment size reasonable; Hold time sufficient (2-3 min); Applied gradually, no jerking | Cl. 13 — Loading protocol | OK NC NA HOLD |
| C3 | Deflection measured at each load level: Mid-span deflection, quarter-span deflection, support settlement recorded; linearity checked Acceptance: Deflection increases proportionally with load; No sudden jumps; All measurement points recorded | Cl. 14 — Deflection monitoring | OK NC NA HOLD |
| C4 | Observation for cracking / distress: Visual inspection at each load level for new cracks, spalling, bolt slippage; documented & sketched Acceptance: No visible cracks up to test load; If cracks appear, location & width recorded; Condition photographed | Cl. 15 — Damage monitoring | OK NC NA HOLD |
| C5 | Sound/noise monitoring: Member behavior observed for unusual sounds (cracking, creep); any concerning noise investigated Acceptance: No alarming sounds; If audible cracking, load held and inspected; Behavior normal expected for member type | Cl. 16 — Behavior assessment | OK NC NA HOLD |