Steel mesh can play a certain role in the maintenance of the wall, many industries will install steel mesh on their own walls. However, the fixing operation of steel mesh is rather complicated, if you want to fix this well, you must master the correct method. So how to fix the steel mesh on the wall?
Welded steel mesh cement surface reinforcement method: can greatly improve the bearing experience, flexural rigidity and ductility of brick wall, change its natural vibration frequency, and improve the function of normal use stage to a certain extent; construction technology is simple and applicable, and the bearing capacity of masonry is greatly improved after reinforcement, which is the premise of good effect and construction experience. It is suitable for solid brick walls without cracks. It is mainly used for shear walls, hollow brick walls with holes (aperture is more than 15 mm), and hollow brick walls with thickness of 240 mm.
Welded steel plate external bonding reinforcement method: This method belongs to the traditional reinforcement method, is a kind of reinforcement method which uses bonding agent to bond steel plate to the cracks in the wall. The common adhesives are natural epoxy resin. The advantages of this method are simple and fast construction, less on-site work and wet work, little impact on production and life, no change in the shape of components and space use, but it can greatly increase the shear capacity of walls and the function and strength of normal use stage is more reliable; it is suitable for masonry reinforcement, and it is not allowed to increase the original structure. In order to improve the bearing capacity of profiles, the size of profiles should fluctuate greatly.
Welded steel mesh prestressing reinforcement method: External prestressing steel tie rod (horizontal tie rod, bottom tie rod, combined tie rod or tie rod) is used to reinforce the structure. This method can reduce the stress level of reinforced members and improve the bearing capacity of normal and oblique sections of walls. Prestressing can eliminate or reduce the stress lag of the post-added component, and make the post-added component work effectively.
Negative moment of pre-stressed germination can eliminate partial load moment, reduce the inclination angle of wall, increase and reduce the crack width of wall, and even close cracks in wall. The advantages of this method are that the bearing capacity of masonry columns can be greatly improved, the reinforcement effect is reliable, and it is suitable for the reinforcement of masonry structures with high stress and strain.
Strengthen Welded Wire Mesh Steel Plate Method: Calculate the shear capacity of severely damaged walls strengthened by carbon fiber sheet. The shear capacity of severely damaged masonry walls is improved by injecting structural glue (repairing cracks) after carbon fiber sheet, and the shear capacity of severely damaged walls is increased by injecting structural glue joints. The calculation diagram and load-increasing coefficient can be used to estimate the shear capacity of the wall strengthened with CFRP. Generally speaking, it is not very difficult to fix the steel plate, as long as we can fix the steel plate according to the basic method mentioned above.