Masonry shall be welded before construction, and the welding length shall be determined according to the requirements for single sided welding.
6.
The bottom of the chromatographic column mold must have a cleaning hole to facilitate the cleaning of garbage.
Before placing concrete, debris in the formwork should be removed.
When pouring concrete after installation, attention should be paid to and maintenance of the formwork and its supports.
The upper and lower brackets should be aligned and pads should be placed.
14.
Yunnan Jingchun Trading Co., Ltd.
9.
The acceptance of formwork projects focuses on the control of stiffness, perpendicularity, and flatness, especially the correct position of the formwork axis at peripheral formwork, column formwork, elevator shaft, stairwell, and other places.
13.
In concrete structure buildings, according to design requirements, it is necessary to connect the joints of columns, walls, and masonry.
For paired cast-in-situ reinforced concrete beams with a span greater than 4m and paired beams with an external elongation greater than 2m, the formwork shall meet the design requirements.
1.
When the beam height is greater than 600mm, add 14 pairs of tension bolts, which are fabricated from round steel on site.
In case of any abnormal situation, it shall be handled in a timely manner according to the construction technical scheme.
When installing the upper formwork and its supports of cast-in-place structures, the lower floor should have a load-bearing capacity to carry the upper load or erect the supports.
All frame column templates need to be carefully calibrated for perpendicularity, and temporary holes should be reserved in appropriate locations for cleaning and inspection.
In the vertical direction of the wall, the length anchored in the columns and walls should not be less than 700mm.
Critical parts that can be installed at the rear to ensure their safety.
16.
For reinforced concrete columns connected to rings and beams, the wall should be placed on the circumference, and the longitudinal reinforcement of the beam should be ribbed.
The formwork and support must have sufficient strength, stiffness, and stability.
12.
10.
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The surface of the formwork is flat and the joints are tight.
The large span should be large and small.
2.
Before construction, the formwork, supporting details, and construction steps (including demoulding) should be reviewed and signed by the technical director of the project.
The formwork and support must have sufficient strength, stiffness, stability, and accuracy to ensure the geometric dimensions and height of the components.
The height of the arch should be 1/1000-3/1000 of the span.
The length anchored into the column should not be less than 35d, and should extend from the wall and wall.
The removal of special formwork shall be approved by the technical director of the project and supervised by Party A.
8.
Before pouring concrete, the formwork installation should be checked.
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.
After the floor reaches the specified strength, the floor structural formwork shall be removed and the supports removed.
For embedded parts fixed to the formwork, the reserved holes shall not leak mud, and annual solids shall be installed, with the deviation complying with regulations.
The lower part of the formwork shall be leveled with 1:3 cement mortar to ensure the uniformity of the formwork elevation.
The span is taken as a smaller value (the span length of the cantilever beam is twice the external elongation), and the plate with a span greater than 4m is arcuate L/400 based on the plate shape.
Not less than 700mm outside the column.
The contact surface between the formwork and the concrete should be smooth and coated with release agent, but there should be no release agent that affects the structural performance or hinders the construction of the decoration project.
Before pouring concrete, the formwork should be moistened with shallow water.
7.
17.
The periphery of the template should be straight, the joints should be tight, the height difference of the joints should not exceed 2mm, and the flatness should not exceed 3mm.
4.
6 steel bars, with an upper and lower spacing of 200mm for demoulding.
Before installing the column formwork, it is necessary to add a diameter of not less than Φ 10% reinforcement (the use of concrete guide walls is strictly prohibited) to ensure its correct position.
The joints of formwork panels should not be made of fibers.
