In the external wall insulation system, the powerful destructive effect of wind pressure and air pressure cannot be ignored. In order to ensure the safety factor of the system under unforeseen conditions, mechanical anchor bolt structure reinforcement methods are generally adopted, especially in multi-storey buildings, when the design elevation of the thermal insulation position exceeds 20 meters, the mechanical anchor bolt structure must be adopted. Reinforce, and the safety performance of the mechanical anchoring system cannot be less than 5 times, that is, the specified value of the tensile bearing capacity of the single anchor bolt is ≥1.5kN.
Therefore, it is stipulated that the raw materials for making screws are stainless steel plates or metal materials with surface anti-corrosion solutions. Plastic expansion tubes and round clutch pressure plates should be made of polyester and other raw materials; the anchor bolt module must be tested by the authoritative department and meet the standard. It can be used with the test report.
Studies have shown that the tensile load-bearing capacity of anchor bolts is immediately related to the anchor bolt structure, clamping method, and the material and method of anchoring the steel bar. At this stage, the common steel-anchored base wall structure is very complicated. In the past, it only relied on expansion and clamping of general mechanical screws or projectiles, etc., which is not suitable for the diversified wall structure. It must be a kind of solid core wall The surface is suitable for all kinds of smart anchors for hollow, bulky and soft walls. There are many successful work experiences and practices at the level of external thermal insulation standard parts. People should imitate and learn and train.