METHOD STATEMENT FOR CONSTRUCTION OF COPING BEAM

METHOD STATEMENT FOR CONSTRUCTION OF COPING BEAM

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1. SCOPE OF WORK

This method statement outlines the construction procedure for coping beam on a skyway project, including formwork installation, reinforcement fixing, concrete pouring, and curing.

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2. REFERENCES

• Approved Construction Drawings & Structural Plans

• DPWH Standard Specifications

• ACI 318 – Concrete Design and Construction Standards

• ASTM A615 – Standard Specification for Reinforcing Steel

• ACI 301 – Concrete Work Specifications

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3. RESPONSIBILITIES

Project Engineer

• Ensures compliance with construction drawings and specifications.

Site Supervisor

• Manages workforce, materials, and equipment.

QA/QC Engineer

• Ensures quality of materials and workmanship.

Safety Officer

• Implements safety protocols and ensures worker compliance with PPE.

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4. MATERIALS & EQUIPMENT

4.1 Materials

• Ready-Mix Concrete (as per design mix)

• Reinforcement Bars (Grade 40/60, as per approved bar bending schedule)

• Formwork Materials (plywood, steel, or timber)

• Curing Compound / Wet Hessian Cloth

4.2 Equipment

• Concrete Mixer / Transit Mixer

• Concrete Vibrator

• Crane / Lifting Equipment

• Scaffolding & Ladders

• Surveying Tools (Total Station, Spirit Level, Theodolite)

• Cutting & Bending Tools

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5. METHODOLOGY

5.1 Pre-Construction Activities

1. Survey & Layout

   • Verify coping beam dimensions and alignment using total station.

   • Mark reference points for reinforcement and formwork installation.

2. Material Inspection

   • Check reinforcement bars for correct diameter, length, and bending.

   • Ensure formwork materials are free from defects.

   • Verify concrete mix design approval.

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5.2 Formwork Installation

1. Formwork Positioning

   • Install formwork firmly and securely along the edge of the skyway structure.

   • Use steel supports and bracing to prevent movement during concrete pouring.

2. Alignment & Level Check

   • Use spirit level or laser level to maintain correct elevation and straightness.

   • Apply release agent for smooth stripping after curing.

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5.3 Reinforcement Installation

1. Placing of Rebars

   • Install reinforcement bars as per the bar bending schedule (BBS).

   • Ensure proper lap splicing and anchorage lengths as per design.

   • Maintain correct concrete cover using spacers and chairs.

2. Tying & Securing

   • Use binding wire to secure rebars in position.

   • Inspect and approve reinforcement before proceeding with concreting.

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5.4 Concrete Pouring

1. Pre-Pour Checklist

   • Ensure formwork and reinforcement are properly secured.

   • Check slump test results (workability should match approved mix).

   • Ensure weather conditions are suitable for concreting.

2. Concrete Placement

   • Use crane bucket / concrete pump to place concrete uniformly.

   • Pour concrete in layers to avoid segregation.

   • Use mechanical vibrators to remove air voids.

3. Quality Control During Pouring

   • Perform slump test and compressive strength test (cube/cylinder samples).

   • Maintain proper curing temperature and avoid premature drying.

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5.5 Formwork Removal & Curing

1. Formwork Removal

   • Remove side formworks after 24–48 hours (or as per strength requirement).

   • Strip bottom supports after 7–14 days, depending on curing conditions.

2. Curing Process

   • Apply curing compound or cover with wet hessian cloth for at least 7 days.

   • Keep surface moist to prevent cracking.

3. Surface Finishing

   • Inspect concrete for honeycombs or voids.

   • Conduct repair work using Pressure Injection Epoxy (PIE) if necessary.

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6. SAFETY REQUIREMENTS

• Workers must wear PPE (helmets, gloves, safety boots, harness for heights).

• Ensure proper scaffolding & edge protection during work.

• Use tag lines & safety ropes when lifting materials.

• Prohibit unauthorized access to the work area.

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7. INSPECTION & TESTING

• Pre-Pour Inspection – Ensure proper formwork and rebar placement.

• Concrete Strength Test – Cube or cylinder tests at 7 & 28 days.

• Final Inspection – Check dimensions, alignment, and surface finish.

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8. APPROVALS

This method statement shall be reviewed and approved by:

Prepared by:
Project Engineer
[Name]

Reviewed by:
QA/QC Engineer
[Name]

Approved by:
Project Manager
[Name]