Enlarged beam section reinforcement project

Enlarged cross-section reinforcement method: a reinforcement method that increases the cross-sectional area of ​​concrete structures or structures to increase their bearing capacity and meet normal use. It can be widely used for the reinforcement of beams, slabs, columns and other components of concrete structures and general structures.

Enlarged section reinforcement method is a direct reinforcement method to increase the section area of ​​the original component or increase the reinforcement to increase its bearing capacity and stiffness, or to change its natural frequency.

(1) Reinforcement method

According to different reinforcement purposes and requirements, this technology can be divided into reinforcement that mainly increases the cross-section, reinforcement that mainly adds reinforcement, or reinforcement that combines both. Reinforcement is mainly to increase the section. In order to ensure the normal operation of the supplemented concrete, it is also necessary to properly configure the structural steel bars. In order to ensure the normal work of the reinforcement, it is necessary to increase the section size appropriately according to the structural requirements such as the spacing of the reinforcement and the protective layer.

(2) Construction process

The quality of the construction of the new section will directly affect the success or failure of the reinforcement project of the enlarged section. Therefore, great attention must be paid to the quality control of each link in the construction process. The construction of increasing the cross-section of concrete members shall be carried out according to the following procedures:

Clean and repair the original structure and components → install new steel bars (including planting stirrups) and connect them with the original steel bars and stirrups → interface treatment → install formwork → pouring concrete → maintenance and demoulding