I. Pre-construction Preparation

1.1 Technical Preparation

Complete deepened design for formwork; output layout plans, assembly drawings, and node detail drawings.

Formulate a specialized construction scheme and obtain approval through expert demonstration.

Conduct 3D visual technical briefings for construction teams.

1.2 Material Preparation

Incoming Inspection: Verify dimensional tolerances ($\pm 1$mm), flatness, and coating quality.

Component Inventory: Check pins, wedges, bolts, and the integrity of the support system.

Auxiliary Materials: Stock up on release agents, sealants, and positioning rubber plugs.

II. Standardized Installation Workflow

2.1 Surveying and Setting Out (Precision Requirements)

Control Line Placement: Axis deviation $\leq 2$mm; elevation deviation $\pm 3$mm.

Positioning Rebar Setting: Spacing $\leq 800$mm with uniform exposed lengths.

2.2 Wall and Column Formwork Installation

Starter Plate Installation: Begin from corners; perform temporary fixation followed by verticality adjustment.

Standard Panel Assembly: Install in numerical sequence; pin installation torque should be $30$–$40$ N·m.

Waling (Back Ridge) Reinforcement: The first row should be $200$mm from the ground; subsequent spacing $\leq 600$mm.

Diagonal Bracing: For walls $\geq 3$m in height, set braces every $2$m at an angle of $45$°–$60$°.

2.3 Beam and Slab Formwork Installation

Support System: Control the elevation deviation of early-stripping heads within $\pm 3$mm.

Primary and Secondary Joists: Secondary joist spacing $\leq 300$mm; increase density at cantilevered sections.

Slab Joints: Use tongue-and-groove connections; apply sponge adhesive strips at gaps.

III. Monitoring Points During Casting

3.1 Pre-casting Inspection

100% Connection Check: Ensure pin missing rate is $\leq 0.5\%$.

Cleanliness Check: Ensure no debris inside formwork; apply water-based release agent.

Embedded Parts: Positioning deviation for sleeves and wire boxes $\leq 5$mm.

3.2 During-casting Monitoring

Layered Casting: Layer thickness $\leq 500$mm; interval time must be less than the initial setting time.

Lateral Pressure Monitoring: Control casting speed within $1.5$m/h.

Real-time Adjustment: Assign dedicated personnel for patrols; address any "formwork bulging" immediately.

IV. Dismantling and Maintenance Standards

4.1 Stripping Time Control

Side Formwork: Concrete strength $\geq 1.2$MPa (8–12h in summer, 24–48h in winter).

Bottom Formwork: Based on onsite cured test blocks; strength $\geq 50\%$ for spans $\leq 2$m.

Early-stripping System: Maintain support spacing $\leq 1.8$m; concrete strength $\geq 10$MPa.

4.2 Standardized Dismantling Process

Sequence: "First supported, last removed; last supported, first removed" (reverse of installation).

Specialized Tools: Use pin pullers; violent prying is strictly prohibited.

Transfer System: Use transfer racks within floors; avoid throwing materials from heights.

4.3 Maintenance and Care

Post-removal: Rinse with fresh water; check for deformation (warpage $\leq 2$mm/m).

Monthly Maintenance: Repair minor deformations and touch up anti-oxidation coatings.

Storage Requirements: Store indoors; elevate the base $\geq 200$mm from the ground.

V. Prevention and Control of Common Quality Defects

VI. Safety Management Specifications

High-Altitude Work: Wear safety belts for operations above $2$m; set up operating platforms.

Fall Protection: Promptly close formwork at edges and openings; set up warning signs.

Electrical Safety: Use dedicated distribution boxes for cutting and welding operations.

Lifting Operations: Bundle formwork for hoisting; use specialized lifting gear.