Purification engineering color steel plate construction requirements
1. Color steel plate structure installation
1.1 Working conditions
The construction of the structure must be completed after the completion of the civil works. The environment has reached a certain degree of cleanliness. The work of other professional subjects has been basically completed, the structural decoration design is completed, and the structural construction can be carried out after the materials are in place.
1.2 Process
1.2.1 Top plate installation
1.2.2 Wall installation
1.3 Process Description
1.3.1 Installation Preparation
"The troops and horses are not moved, the grain and grass are first," and the quality of the preparation will directly affect the construction progress and quality of the project. The preparatory work for purification and decoration mainly includes several aspects such as in-depth understanding of drawings, materials required on site, preparation of tools and equipment, and staffing. The preparation of materials is especially important. The metal siding is prefabricated by a special factory, and it needs a certain production and transportation cycle. Therefore, whether the materials are complete before construction is the key to whether the construction can be carried out smoothly.
1.3.2 Fixed measuring line
1.3.2.1 The fixed measuring and releasing line is the basis of the purification and decoration construction, especially the precision of the industrial plant decoration, and the fixed measuring line is the basis for ensuring the construction accuracy. Due to the large number of specialties in the project and the complicated cross-construction, the purification and decoration professional and the professional surveying and discharging line of each professional should be adjusted according to the unified standard. Generally, the reference line must be installed uniformly. The horizontal reference line is taken as the original reference with the axis in both directions. An installation baseline that is beneficial to the construction of each specialty.
1.3.2.2 Determine the installation baseline
a, to determine a reference point and baseline must be multi-point method to ensure accuracy;
b. Before using the ink line, you must use the 20~30 meter nuclear reference point or reference point of the cotton thread;
c. After the ink line is pressed, it must be checked repeatedly. After confirming the correctness, the relevant signs should be completed in time. This work is generally carried out by both construction workers and quality personnel to ensure accuracy.
1.3.2.13 Find the highest point on the ground
Use the laser level or normal level to find the highest point on the ground as low as possible, mark the highest point on the ground, and draw a 500mm leveling point at the center of the column relative to the highest point on the ground.
1.3.3 Installation of top and wall panels
1.3.3.1 Making and installing threaded booms
The threaded boom should be cut to the appropriate length before installation. According to the measurement of the 500 reference line to the bottom of the floor or the bottom of the beam, the boom is generally made of M8 wire, fixed with two M10 expansion bolts and angle iron and ceiling. The distance between the rods is 1.2~1.5m, and the lifting point should be consistent with the top line. All expansion bolts are required to be installed and the boom is installed at the same time.
1.3.3.2 keel installation
The key to the decoration of the metal color steel plate is the installation of the node and the keel. The keel is firmly installed to continue the installation of the top and the siding.
a, roof keel installation (here keel refers to C-shaped steel)
Mainly refers to the installation of the ceiling beam. Firstly, the C-shaped steel is drilled with two holes in the outer edge of the C-shaped steel along the outer edge of the C-shaped steel with a pitch of 100 mm, and then the C-shaped steel and the boom are connected by a cable, using a laser level or ordinary The level adjusts the height below the suspension points of the keel, specifically by adjusting the nut. When adjusting the height, the profile must be pulled to keep it vertically downward, and then the height of the C-shaped steel is measured against the height of the highest point on the ground and the lowest side of the keel. The required error is within 1mm.
b. The integral manger of the wall keel installation arc, use the nail to fix the lower manger along the wall line on the ground, and connect the upper manger to the top plate with self-tapping screws. Note that the opening of the door and window is reserved accurately.
1.3.3.3 Top wall panel installation
1 top wall installation conditions
a, the board opening hole sealing is completed;
b, the installation environment is clean, the installation of other professional supervisors has been completed;
c. The keel installation leveling is completed;
2 laying the roof
A. According to the good suspended ceiling line, the drawing line is used in the building as the control reference board for installing the ceiling board. The first top board must be installed with reinforcement measures, no swaying, self-tapping between the ceiling board and the C-shaped steel. The screws are fixed. The adjacent top plates should be connected by aluminum alloy inserts, and the length of the inserts should not be shorter than 2/3 of the length of the slits.
B key points of installation
The key to the installation process of the top wall is the protection awareness and protection measures during the construction process. Generally, the following requirements are required:
a. It is not allowed to directly contact the color steel plate surface with a hard tool;
b. When moving the metal color steel plate, it should be light, and the color steel plate should not be lifted flat;
c. The color steel plate should be cleaned and adequately protected;
d. The top wall panel shall be sealed immediately after opening to avoid scratching;
e. Strictly control the dust production and control the flow of people.
1.3.3.4 tear film cleaning seal
1 conditions that should be met before tearing the film:
a, the end of each professional end installation;
b. Ground construction is completed;
c. Clean room for thorough cleaning and vacuum treatment;
d. The top wall protective film has been provided with a tear film opening during installation.
2 clean seal
Clean sealing is one of the key processes to ensure the purification function. Cleaning is the premise of sealing. Sealing is generally done with silicone or other building sealant. The glue is required to be full and even, and the glue is slightly lower than the surface of the board. In order to ensure the uniformity of the glue joint, paper tape can be attached on both sides of the joint to be glued before the glue is applied. To ensure the consistency of all the glue joints, it is recommended to top. The wall panels are connected by a plug-in connection.
1.4 quality standards
1.4.1 The materials used must meet the design requirements.
1.4.2 Unpacking of materials must be carried out in a clean environment to ensure that their specifications are in good condition.
1.4.3 The flatness of the ceiling surface is less than 2mm.
1.4.4 The flatness of the seam must be less than 1.5mm.
1.4.5 The seam height must be less than 1mm.
1.4.6 The gap is not more than 0.5mm.
1.4.7 The verticality error of the wall panel is less than 1 degree.
1.4.8 The envelope structure is well sealed. s
1.5 Finished product protection
After the construction of the structure is completed, other professional constructions may not be completed, so the finished structure must be protected. Otherwise, it will have an adverse effect on the quality of the entire project.
First, strictly control the flow of people and logistics to prevent scratching or pollution of the envelope structure. Other professions must have holes in the enclosure that must be approved by the person concerned. In addition, hard objects are not allowed to collide with the enclosure.
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