LY/T 3130-2019Technical regulation of wooden walkway installation (English PDF)

4.1 Material requirements

4.1.1 Materials for pavement of wooden planks shall be selected according to design requirements. The variety, specifications, quality and quantity of materials shall meet the design requirements, and shall have Have a certificate of quality.

4.1.2 The moisture content of keels, planks and guardrails used for pavement of wooden planks is less than 15%; the appearance quality shall meet the requirements of GB 50005.

4.1.3 The steel for steel keel shall meet the requirements of GB 50017.

4.1.4 Metal connectors and fasteners shall meet the requirements of GB 50005.

4.1.5 The anti-corrosion and insect-proof treatment of keel, plank and guardrail shall comply with GB/T 27651.

4.2 Technical requirements for paving

4.2.1 The wooden plank road shall be checked and accepted with sub-projects before paving.

4.2.2 Basics

4.2.2.1 Concrete, beam and column foundation

The strength of concrete, beam and column foundation should meet the design requirements. The surface should be hard, smooth and dry, without sand, and the concrete strength should reach C25 the above. Independent foundations must not have depressions.

4.2.2.2 Ground screw pile foundation

It should meet the requirements for the strength, stiffness and flatness of the boardwalk. Ground screw pile spiral blades and welds should be continuous and uninterrupted.

Inside and outside hot dip galvanizing or surface spraying treatment, no defects such as missing plating, missing spray, zinc knob, etc., no zinc slag at the connection hole, average thickness of galvanized not less than 80um, minimum thickness is 60um.

4.2.3 Keel Pavement

4.2.3.1 The keel shall be laid according to the design requirements. When paving the keel, pull a straight line on the foundation to ensure that the entire keel is on the same plane after paving on.

4.2.3.2 The keel spacing is 400mm ~ 600mm; the keel length seam spacing is within 10mm, the seam must not be suspended; fixed keel screw the nail pitch is 60mm ~ 70mm.

4.2.3.3 When there is a gap between the wooden keel and the foundation, the spacer should be used for leveling. The material of the spacer is consistent with the keel and meets the design requirements.

4.2.3.4 Angle brackets, embedded bolts or expansion bolts are used to fix the wooden keel to the foundation; welding is used between the steel keel and the ground screw pile or bolted.

4.2.3.5 Permissible deviations and inspection methods for keel paving

Should meet the requirements of Table 1.

Table 1 Permissible deviations and inspection methods of keel pavement

project

Allowable deviation

Testing method

Wooden keel steel keel Longitudinal seam gap ± 3mm-detected by steel ruler, accurate to 0.5mm Keel spacing ± 5mm ± 5mm detected by steel ruler, accurate to 0.5mm Keel surface flatness ± 3mm/2m ± 3mm/2m Detect with 2m square ruler and feeler gauge, accurate to 0.01mm

4.2.4 Boardwalk wood paving

4.2.4.1 The planks shall be paved according to the design requirements. When paving, use a woodworking ink fountain to draw lines to confirm the position of the cloth nails.

Head galvanized or stainless steel screws.

4.2.4.2 The planks are paved from the seam, and the paving interval is 5mm ~ 20mm;

It must be suspended; the length of both ends is 100mm ~ 150mm.

4.2.4.3 The step width is not less than 260mm; the step height is not more than 160mm.

4.2.4.4 Allowable deviations and inspection methods for plank paving

Should meet the requirements of Table 2.

Table 2 Allowable deviations and inspection methods of plank paving

Project allowable deviation test method Surface flatness. ± 3mm/2m with 2m square ruler and feeler gauge, accurate to 0.01mm Space between planks ± 2mm. Detect with steel ruler, accurate to 0.5mm the height difference between adjacent planks is 1.0mm.

Seam gap in the length direction of plank wood ± 2mm

4.2.5 Guardrail installation

4.2.5.1 Guardrails shall be installed in accordance with design requirements. The guardrail column and the keel are fixed by means of foot hoop and bolts.

4.2.5.2 The height of the handrail of the guardrail shall be 0.9m or more; the distance between the pillars of the high-risk environment guardrail shall be less than 110mm.

4.2.5.3 Allowable deviations and inspection methods for guardrail installation

Should meet the requirements of Table 3.

Table 3 Allowable deviations and inspection methods for guardrail installation

Item Allowable Deviation/mm Inspection Method Guardrail verticality ± 3.0 with 1m vertical detection ruler and steel ruler, accurate to 0.5mm Pillar spacing ± 5.0 Use steel ruler to measure, accurate to 0.5mm Straightness of handrails. ± 5. Pull 5m line, less than 5m pull-through line, check with steel ruler, accurate to 0.5mm the gap between the armrest and the post <=3 is measured with a steel ruler, accurate to 0.5mm

4.2.6 Finishing of wooden planks

4.2.6.1 Finishing shall be carried out according to design requirements. Finish the surface with a.2000 mesh emery cloth to smooth it and remove surface burrs, sawdust, nails, stones Wait.

4.2.6.2 The paint shall be applied by hand, and the primer and topcoat shall not be less than 2 times. The paint film should adhere well, without obvious wrinkles, drips, bubbles, etc.

The coating should be missed, and the coating should be free of peeling and rust.

5.1 Master Control Project

5.1.1 The variety, specifications and strength of all materials shall meet the design requirements. And have product quality certificate, inspection report.

5.1.2 The strength of concrete, beam and column foundation and ground screw pile foundation shall meet the design requirements.

5.1.3 The appearance quality and moisture content of keels, planks and guardrails used for pavement of wooden planks shall meet the requirements of 4.1.2 of this standard;

The design area and scope shall meet the design requirements.

5.1.4 The pavement of wooden planks shall meet the requirements of 4.2 of this standard.

5.1.5 The keel, plank and guardrail shall be treated with anti-corrosion and anti-moth.

5.2 General items

5.2.1 The surface of the wooden boardwalk should be smooth and clean, and no burrs or edges are allowed on the handrail part; the outer surface of the components should be smooth, chamfered, rounded, or curved the lines should be smooth and uniform.

5.2.2 The keel, planks, guardrails and other components shall be connected tightly and firmly without looseness; the columns shall be vertical, uniformly spaced and arranged neatly;

There was no obvious sinking or abnormal noise when Daomu stomped.

5.2.3 The surface of metal electroplated parts is smooth and flat, no bubbles, no rust, no burrs, no exposed bottom, no speckles, no scorching, no cracks, no Defects such as bumps; the surface of the coating of metal parts is smooth and flat, and the color is consistent, and there is no sagging, no wrinkling, no missing coating, no rust, etc.

5.3 Determination of itemized project inspection lot

5.3.1 The acceptance of the foundation, keel, surface layer and finish quality shall be regarded as the inspection lot according to the sub-item.

5.3.2 The inspection lot should be larger than 50m2. When the inspection lot is smaller than 50m2, the actual area is regarded as the inspection lot.

5.4 Comprehensive judgment

The main control items of the quality inspection of the wooden plank sub-items shall meet the standards specified in 5.1 of this Chapter; the checkpoints (offices) of more than 90% of general items it shall meet the requirements of 5.2 of this chapter, and other defects shall not affect the use. Inspection items that do not meet the standard shall be dealt with in accordance with the provisions of GB 50300.