External window construction technology for assembling external window steel subframe by plastic-steel connection corner

Abstract

The invention relates to an installation method of external windows and doors of buildings, in particular to an external window construction technology for assembling an external window steel subframe by plastic-steel connection corner. The construction technology comprises the following steps: actually measuring a structural opening to determine the finish size of a subframe material; and then respectively processing the external window steel subframe, the plastic-steel connection corner and an external window master-frame; by adopting the mode of splicing the plastic-steel connection corner and subframe galvanized square steel to install the steel subframe; after assembling and aligning four corners, installing the steel subframe on the structural opening, wherein the four sides of the subframe are fixed through bolts, and the foaming on the four corners is temporarily fixed; and connecting the external window master-frame with the steel subframe by a screw fastening mode after binding off, foaming and plugging the gaps between the external master-frame and the steel subframe by a sealant, and installing glass after installing the master-frame. In the invention, the subframe is installed in advance, and the master-frame and glass are processed without influencing civil engineering construction, thus reliving the conflict between civil engineering binding-off and door and window installation; and meanwhile, the steel subframe assembling is realized by the connection of plastic-steel connection corner, thus simplifying the installation working processes, reducing the material loss and improving the installation efficiency.

Description

technical field [0001] The invention relates to a construction method for installing exterior doors and windows, in particular to an exterior window construction process for assembling exterior window steel sub-frames by connecting corner codes with plastic steel. Background technique [0002] At present, the installation of external doors and windows of buildings adopts the method of adding steel sub-frames, which has been applied for a long time. It has played a significant role in controlling the coordination of the internal and external decoration of civil works and the installation process of the main frame of external windows. However, there are still many problems in its application process that need to be optimized and solved. There are mainly the following points: (1) The processing of the sub-frame is basically limited to the scene. Usually, the welded steel sub-frame is blanked and welded at the construction site, which occupies a large area, which is not conduci...

AI Technical Summary

Problems solved by technology

Usually, the welded steel sub-frame is blanked and welded at the construction site, which occupies a large area, which is not conducive to on-site management and control; (2) On-site processing of molds that have not been finalized is mainly carried out by people for scattered processing, which requires a large number of personnel and the production is not centralized. The quality of the finished product is low; (3) The construction and assembly of the sub-frame mainly depends on welding

After the steel sub-frame material is cut, the on-site welding and splicing are not easy to control due to thermal deformation and welding size, which may easily lead to the overall irregularity and straightness of the sub-frame, which will affect the quality of door and window installation; welding and splicing will damage the original material anti-corrosion, and it is easy to appear during use. Insufficient anti-corrosion phenomenon, easy to rust and affect the connection strength of door and window installation; (4) The steel sub-frame welded and connected is not easy to be reversed during on-site installation, and it is difficult to adjust when there is a deviation, resulting in low processing and installation efficiency and large material loss; (5) After the sub-frame is made, it is found that there are problems such as size deviation, which is not easy to adjust and change. It needs to be cut and re-welded, and it is easy to cause waste of materials

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