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How to avoid wrinkles on the surface of stainless steel manual plateTime of issue : 2021- 08-05
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How is rock wool color steel plate produced, and how strong is its fireproof effectTime of issue : 2021- 08-05
Rock wool color steel plate is a kind of color steel plate that is very popular in the field of color steel plate. Because this kind of building material has good heat preservation and fire protection performance, and its safety performance is better than general color steel plate, this type of color steel plate is in It is also very popular in use. But how is it produced, and what is the fire prevention effect?
Technical requirements and precautions for color steel plate installationTime of issue : 2021- 08-05
Technical requirements for color steel plate installation
1. Installation process
The installation process of the profiled steel plate roof enclosure system should be located in a reasonable position in the general construction process of the project.
(1) For buildings made of pure panels or projects independently completed by panel manufacturers, the contractor will independently arrange the construction procedures.
(2) The construction process of the profiled steel plate roof enclosure system should be arranged to be continuously completed in an independent construction section. In the construction of the roofing project, if there is a project that is higher than the roof in the adjacent area, the construction should be started after the adjacent project is completed to protect the roofing project from being damaged or being used as a support surface for scaffolding.
(3) The profiled steel plate enclosure system shall be started after all the processes of its supporting members are completed.
(4) The wall engineering should be started when the masonry engineering and decoration engineering under it are completed.
The installation process of roof system and wall system is similar.
Second, install and pay off
Since the profiled steel plate roof and wall panels are prefabricated assembly structures, the laying-out work before installation plays a role in ensuring the quality of the later installation and cannot be ignored.
(1) Before installation and setting-off, the existing building products on the installation surface should be measured, and the parts that fail to meet the installation requirements should be revised. Make a record of the construction deviation, and propose corresponding installation measures for the deviation.
(2) Determine the position of the starting line of the layout according to the layout design. (Considering the local wind load is relatively large, the starting point of the slab should be downwind to determine the starting point position. The roof starting point of the slab is the same as the wall). The purlin marks the starting point of the board arrangement, and the connection of each point should be perpendicular to the longitudinal axis of the building, and then continue to mark every few boards in the width direction of the board to limit and check the accumulation of the width of the board. The sawtooth phenomenon and the super wide phenomenon will occur if the line is not laid out according to the regulations.
(3) The installation of wall panels also applies similar methods for laying out lines, except that: the verticality of the supporting surface should be calibrated to ensure that the vertical plane of the wall is formed.
(4) After the roof panel and wall panel are installed, the fittings should be installed twice to ensure the horizontal straightness and verticality of the cornice line, the ridge line, the window door and the corner line. Ignoring this step and using only visual inspection and experience methods will not meet the installation quality requirements.
Three, plate hoisting
There are many hoisting methods for color profiled steel plates and sandwich panels, such as car crane hoisting, tower crane hoisting, hoist hoisting and manual hoisting.
This project intends to adopt a manual hoisting method. This method is convenient and low in price because it does not require large-scale machinery and can be flexibly moved to the place where it needs to be installed. This method has a small number of lifts each time, but the roofing distance is short, which is a frequently used method.
This project adopts the manual lifting method of the steel wire sliding method as an alternative. This method is to install several steel wires on the gable of the building, set the casing on the steel wire, put the plate on the steel pipe, and the roof workers use ropes to pull along the steel wire Steel pipe, the special-long board is lifted to the roof. Then it is manually transported to the installation site.
Four, installation method and matters needing attention
Measure the actual length of the installed plate, check the length of the plate corresponding to the plate number according to the measured length, and cut the plate if necessary.
Place the board lifted to the roof according to the starting line of the board, and make the width of the board cover the marking line to align with the starting line. And discharge the designed structural length at both ends of the plate length direction.
After fastening the two ends with fasteners, install the second board. The installation sequence is from left (right) to right (left), and then from bottom to top.
Install to the next marking point, review the deviation of the plate installation, and fully tighten the plate when the design requirements are met. When the requirements cannot be met, the alignment should be adjusted in the next marking section. When the alignment is adjusted in this marking section, the marking section can be adju