Concrete construction process of steel sandwich structure

Concrete construction process of steel sandwich structure:
1, according to the drawings design, site prefabricated production of all steel parts, comprehensive rust removal, grinding, brushing second times antirust paint;
2. Use laser level meter to measure the highest point of the house, then find the reference point, measure the horizontal line of the steel structure, and eject the standard position line on the wall, and the error of the horizontal line position should be less than 3mm;
3, embedded in the back of the plate wall slot, shovel (Zhao Pingceng), on the back of the frame wall also shovel out, the purpose is to let the real bearing wall is closely connected to the border, to prevent falling, more effective stress.
4, embedded steel plate: step ----1., drilling, -------2. cleaning, drilling, repeated blowing, brushing dust, ------3. into the chemical anchor hose, -------4. drill into the screw -------5. hardening, waiting for ------6. installation of embedded steel plate;
5, border fixed: step ----1., drilling, -------2. cleaning holes, repeated blowing, brushing dust, ------3. into the chemical anchor, hose -------4. drilling into the screw, -------5. hardening, waiting for the ------6. installation border;
6, the installation; to the scene after the measurement at both ends of the anchorage in fine cut, measured after cutting, if the span is small as far as possible the steel, the error is not greater than 4mm. Due to the limitation of site construction conditions, the construction machinery can not be entered at the site and the manpower shall be installed to the height of 3.7m. We need four workers, two workers on the ground, and 3 tons of gourds tied on the steel beams for manual installation. With 3 tons of 10 classes with 6 hoist 5 days left artificial lifting. When the main beam is hoisted to the drawing elevation, the frame shall be welded first, then strengthened, and finally full welded.
7. Installation of steel plate. The plate shall be laid on both sides, and shall be lapped on the main beam of the steel keel, and shall not be lapped in the empty space. Note that the best left 3mm ceiling when the expansion joints between the board and the board, the use of waterproof building glue as expansion sealant, fixation with tapping screws.

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