H20 Wooden Beam Supply for Constructions

The wooden laminated I-beam BDK 1 is designed as a formwork element for reinforcement and concrete pouring processes during the construction and assembly of monolithic reinforced concrete floor structures. This system ensures the absorption of vertical loads while also performing geodetic measurement and adjustment operations to align the horizontal plane.

The beam has an I-shape, with flanges made of grooved coniferous wood. Dowel joints may be present along the length of the flange. Assembly is carried out using toothed dowels and polyurethane adhesive within the grooves, with standard FSF plywood. The beam is coated with water-based paints with water-repellent properties and is colored in yellow GA 20054.

The ends of the beam are reinforced with high-strength plastic caps to enhance durability. The beam is made from Class II coniferous wood material in accordance with the GOST 9463 standard and plywood conforming to GOST 3916.1 and GOST 3916.2. Additionally, the beam is mounted and secured on special telescopic stands.

1.1 Main Dimensions of BDK 1 Beam:

• Length (mm): 1500 – 6000
• Height (mm): 200 – 240
• Flange Width (mm): 80
• Flange Thickness (mm): 40
• Plywood Thickness (mm): 27
• Plywood Tenon Cut Depth (mm): 20

1.2 Maximum Deviations from Geometric Dimensions and Shape:

• For lengths up to 3.0 m: ±4 mm
• For lengths over 3.0 m: ±5 mm
• Height: ±2 mm
• Flange Width: ±2 mm
• Flange Thickness: ±1 mm
• Beam Inclination: Should not exceed ±2 mm.

1.3 Limit Values for Flatness Deviations:

• For beam lengths up to 3.0 m: Should not exceed 4 mm.
• For beams longer than 3.0 m: Should not exceed 5 mm.
• Height deviations from the plane: Should not exceed 3 mm.
• Deviations from the perpendicularity of adjacent surfaces: Should not exceed 2 mm.

1.4 Beam Manufacturing: Beams must be manufactured according to specified and approved working drawings.

1.5 Load Characteristics: According to EN 13377 standard, the load characteristics of the beam are as follows:

• H 20
• Shear Force (Vk): 23.9 kN
• Additional Load (Q): 11 kN
• Bending Moment (Mk): 10.9 kNm
• Permissible Bending Moment (M): 5 kNm
• Support (Rb,k): 47.8 kN
• Elastic Moment and Moment of Inertia (EI): 486 kNm²
• Flange Elastic Modulus (C24): 11,000 N/mm²
• Web Elastic Modulus (SWP): 6,700 N/mm²

2.1 – BDK 1 Beam (Cross Bar) Stand Made of FSF Plywood:

• Passport

2.2 – Delivery Set: The delivery set will be provided in accordance with the standards specified in this passport.

3.1 Safety Requirements and Environmental Protection: The production of products must comply with current technical documentation, construction rules and regulations, as well as health and hygiene standards. These documents must be approved by health authorities and include necessary procedures related to environmental protection.

3.2 Product Manufacturing: Products must be manufactured in accordance with the GOST 12.2.003-91 standard.

3.3 Loading, Storage, and Unloading Safety: During the loading, storage, and unloading of beams, strict adherence to the safety rules of GOST 12.3.002-75 “Safety regulations for equipment and lifting operations according to SSBT” must be followed. General safety requirements in production processes must be observed.

3.4 Technological Process and Safety: The organization and execution of the technological process must include safety measures and principles of harmlessness for working personnel, nearby residential areas, and the environment.

3.5 Fire and Explosion Safety: The production process must be resistant to fire and explosion risks, and all necessary precautions must be taken.

3.6 Production Equipment Safety: Production equipment must comply with the requirements of GOST 12.1.018-93 “SSBT” and include measures such as fire safety, electrostatic internal safety, protective grounding, and earthing. Additionally, compliance with GOST 12.1.045-84 regarding permissible levels and monitoring requirements in workplaces exposed to electrostatic fields must be ensured.

3.7 Certification of Lifting Operations: According to Section 4.3, individuals performing lifting operations must be certified to carry out these tasks.

3.8 Beam Lifting and Storage Safety: During the lifting, lowering, installation, and storage of beams, sudden shocks and impacts must be avoided. Weightlifting operations must be conducted with at least two certified slings.

3.9 Sling Safety: Slings used during the lifting, loading, and unloading of beams must be wrapped in canvas or passed through a fire hose to prevent damage. The use of bare cables is strictly prohibited.

4.1 Packaging of Beams: Beams must be packaged on pallets.

4.2 Pallet Content: Each pallet must contain beams of the same type, and the weight of the pallet must not exceed 2 tons.

4.3 Delivery Documents: Each delivery must be accompanied by a passport and a certificate of conformity. The passport must include the following information:

• Beam type
• Quantity
• Dimensions

4.4 Compliance of Pallets with Standards: Pallets must be manufactured in accordance with the requirements of GOST 19041-85*E. The width of the pallets must not exceed 1350 mm, and the height must not exceed 1450 mm.

5.1 Transportation:
Beam pallets can be transported using any type of vehicle in accordance with the requirements of GOST 19041-85.

5.2 Storage:
Beams must be stored sorted by type and size. To prevent sagging and permanent deformation, they should be stacked on wooden supports.

5.3 Protection During Transportation:
During transportation, beam pallets must be protected from mechanical damage, moisture, and contamination.

5.4 Lifting and Loading:
Lifting, loading, and unloading of beams must be carried out using a crane with special gripping devices and flexible straps.

5.5 Loading and Unloading Prohibitions:
Dropping the products during loading, transportation, and unloading is strictly prohibited.

5.6 Storage Conditions:
Storage should be done in enclosed, ventilated areas or shaded locations to prevent exposure to precipitation and direct sunlight.

5.7 Cleaning:
Detergents containing abrasive materials should not be used for cleaning the products.

5.8 Color Change During Storage:
During storage, the surface color of the products may change due to exposure.

MANUFACTURER’S WARRANTY
The manufacturer guarantees the quality and compliance of the products with standards.

6.1 Manufacturer’s Warranty:
The manufacturer guarantees that the beams will comply with these technical specifications, provided that the consumer uses them in accordance with the transportation, storage, installation, and operating conditions.

A) Inclined Cracks (Along the Fibers):

• Not permitted:
  • Straight cracks (Along the Grain):
    • a = Up to 2 mm parallel to the flange is allowed.
    • Expansion of the flange due to cracks is not allowed.

B) Lateral Peeling:

• a = Peeling up to 10 mm in depth and up to 500 mm in width is allowed on one side.

C) Diagonal Peeling on the Edge:

• Diagonal peeling up to a = 30 mm in depth and b = 500 mm in length is permitted.

D) Surface Cuts:

• Surface cuts up to a depth of 2 mm are allowed.

E) Flange End:

• Peeling up to 60 mm in length is acceptable.

F) Wall Damage:

• Allowed only to a minor extent and only on one side of the beam.

G) Damage at the Edge of the Wall:

• Permitted up to a maximum depth of a = 20 mm.