Views: 243 Author: Site Editor Publish Time: 2024-10-22 Origin: Site
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The function of the expansion seam
Scale of expansion joint parameters
Expansion joint is an important part of the building structure, which is mainly used to deal with the structural deformation caused by temperature changes and humidity changes and other external factors. Due to the thermal expansion and shrinkage of materials, especially in long-span buildings and bridges, expansion joints can effectively prevent damage caused by deformation, so as to ensure the safety and durability of the structure.
The types of expansion joints mainly include lateral expansion joints and longitudinal expansion joints, which are suitable for different construction needs. Usually, they are made of elastic, metallic or composite materials to ensure adaptation and maintain the seal during deformation.
Temperature regulation: with the change of temperature, the material of the building will expand and shrink, and the expansion joint can effectively absorb these changes to prevent cracks and deformation.
Waterproof sealing: many expansion joints design contain sealing materials, which can effectively prevent the infiltration of water and other liquids and protect the internal structure of the building.
Shock absorption effect: under the earthquake or other external shocks, the expansion joint can reduce the interaction between the structures, reduce the risk of damage.
Parameter | Number range |
expansion and contraction amount | 10 mm - 100 mm |
material type | Rubber, polyurethane, metal, etc. |
applicable temperature range | -30 C to 70 C |
water release level | IP 65 |
durability | More than 10 years |
Installation spacing | 10 m - 50 m |
Installation of expansion joints usually requires a professional construction team to ensure accurate location and depth to maximize functionality. Regular maintenance is also critical, including inspection of sealing and material wear, timely replacement and repair to extend their service life.
As an indispensable part of building structure design, the expansion part plays an important role. Through reasonable design and selection of appropriate materials, can effectively improve the safety and durability of the building. In modern construction engineering, the scientific application of expansion joints not only improves the stability of the structure, but also provides people with a safe and comfortable living environment.
