English
日本語
русский
Español
Customer expresses intent; Communicate between the two parties; Provide analysis reports to customers; Reach a cooperation intention.
Carport Reinforcement Manual
1. Emergency Column Reinforcement: Secure the roots first to prevent roof collapse
Symptoms: Column wobbling, rust-through roots, cracked concrete piers
Solution: → Steel Sleeve Reinforcement: Cut open the rusted section → Install galvanized steel pipe with matching inner diameter → Apply epoxy resin adhesive → Concrete Pier Reinstatement: Chisel out the crack → Insert rebar → Pour quick-drying cement (mixed with wire mesh) → Traditional Method: Use a truck jack to prop up the beam → Pad the bottom with granite slabs
2. Beam Reinforcement: Resist Snow Pressure and Sagging
| Problem Type | Low-Cost Temporary Fix | Permanent Solution |
|---|---|---|
| Slight Bending(<5% of beam height) | Weld angle iron supports underneath → Distributes load | Replace with box-section steel beams → 2X load capacity |
| Loose Joints(Bolts rattling/gaps) | Bolt L-shaped steel plates across joints → High-strength bolts required | Cut out damaged section → Re-weld + diagonal cable bracing |
| Rust Perforation(Holes/crumbling) | 1. Grind rust → 2. Apply rust converter → 3. Wrap fiberglass tape + epoxy | Replace entire beam→ NEVER weld patch plates over holes |
3. Three ways to protect the roof from wind and snow
Preventing lift-off: → Drill screws along the edge of the roof → Tie stainless steel guy ropes 1.5m underground → Cost: ¥20/m, better than welding
Preventing snow accumulation: → Convert flat roof to sloped roof: Weld 30° steel frames → Lay corrugated panels (snow will slide off automatically) → Explicit method: Apply Teflon coating to the roof (to reduce friction)
Preventing resonance: → Stretch cross-wires between beams (2m apart) → Eliminate wind whistling
4. Foundation resurrection (reconstruction without excavation)
Sag correction: → Use a 50-ton hydraulic jack to prop up the sagging corner → High-pressure cement grouting at the bottom → Key: Simultaneously monitor the level gauge and ensure a ≤5mm lift per hour to prevent cracking
Frost heave treatment: → Dig up the surrounding soil → Fill with a 30cm gravel layer → Wrap the columns with PVC drainage pipe
5. Signs you need to hire a professional:
Z-shaped distortion in the main beam (structural plastic deformation)
Foundation cracks large enough to insert a finger (late-stage differential settlement)
Hearing a tearing sound during heavy rain (a precursor to fatigue fracture)
Labor cost reference: Local reinforcement starts at ¥800, comprehensive renovation starts at ¥3,000+
浙公网安备 33068302000509号