Steel Global Net

1, based on criteria:
"Construction quality inspection standards" GB50300-2001
"Steel Construction quality inspection norms" GB50205-2001
2, the construction preparations for the
2.1 Materials
2.1.1 steel grid connection and the installation of steel materials, high strength bolts, welding, wire, flux, and so on, should be consistent with the design requirements, and should be pre-certification.
2.1.2 steel grid with the installation of hollow ball welding, welding stiffened ball, the ball bolts, semi-finished products of small assembling units, bar, and semi-finished products such as rubber bearing, and should meet the design requirements and the corresponding national standards.
2.2 Main machines:
Welder and oxygen - the acetylene cutting equipment, wheel sawing, cutting lathe bar, bar cutting power head, steel tape, foot plate, caliper, Level, theodolite, ultrasonic flaw detectors, magnetic detector, upgrade equipment, lifting equipment , hammer, wire brush, hydraulic jack, and tools such as chain inverted.
2.3 operating conditions:
2.3.1 before installation should grid bearing axis line with the elevation of a post-mortem examination. Grid axis, elevation position must comply with design requirements and the relevant standards.
2.3.2 capitals before installation to check the strength of the concrete, concrete strength capitals must comply with design requirements and the relevant standards in force in the country after the provisions can be installed.