[China Glass Net] The project is located in the south of Guangzhou Avenue, Haizhu District, Guangzhou. Due to factors such as glass curtain wall design, material aging and pre-installation and construction management, there are many leaks in the curtain wall. Entrusted by the owner, our company based on the engineering examples and the 16 years of construction and maintenance experience of the large-scale glass curtain wall project, comprehensively analyzed the causes of leakage of the glass curtain wall of the building, and proposed related prevention methods and prevention measures. At present, the construction of the 1-6 layer leakage project has been completed, and the remaining 12 floors are under construction.
1. Analysis of the causes of water leakage in glass curtain wall
Leakage of glass curtain wall is a common phenomenon in curtain wall engineering. Because the weather-resistant sealant in the curtain wall seam is exposed to the sun for a long time, it may cause water leakage due to cracking, slitting and aging. Long-term continuous rainfall, rainwater dripping along the window frame and window sill or glass joints, in severe cases can involve several layers below the water leakage layer, affecting the normal use of the building.
2. Measures for seepage and leakage of glass exterior wall
Check from both sides of the water leakage point (not less than 8 layers), found that most of the seams and aging or glass weathering glue, severely aged cut, re-sand, crack, open seam grouting method Fill into the seam. Waterproofing is achieved by using a waterproof transparent adhesive for curtain wall or metal exterior wall.
Construction worker tools
The construction personnel used high-altitude hanging slabs for construction from the top of the building, and selected a safe and reliable position on the roof as a fixed position for the hanging slabs, which gradually declined from top to bottom.
Construction personnel tools: Each person is equipped with 1 sling (main rope) and safety rope, hanging plate, safety belt, self-locking device, safety supervisor supervision on site, placing high-altitude for signboard, and be responsible and responsible. The construction personnel have purchased high-altitude casualty insurance and have received professional technical training, all of which have more than three years of experience in aerial work.
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