The short answer
The architect inspects design compliance; an independent engineer or site supervisor verifies structure and workmanship; you approve payments.
The architect’s role is to confirm the work matches the drawings and specification. Structural inspections — reinforcement, concrete grade, curing — are usually done by the structural engineer or an independent supervisor.
Agree the number and frequency of site visits in the architect’s scope, and keep a written record of each inspection with photographs. Payments should follow verified progress, not the contractor’s schedule.
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