Prefabricated stair
A prefabricated and stair technology, applied in the direction of stepped structures, building structures, buildings, etc., can solve the problems of insufficient strength of connecting structures, and achieve the effects of safe and durable use, stable fixed structures, and strong connecting structures.
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[0040] A prefabricated staircase, such as figure 1 , figure 2 Shown, prefabricated stairs 1 and two installation platforms 2. The upper and lower ends of the prefabricated staircase 1 are respectively fixed with mounting plates 3, and the two mounting plates 3 are arranged in a square plate shape in a direction away from the prefabricated staircase 1, and the two mounting plates 3 are arranged parallel to each other. A number of second inserting ribs 4 are fixed at one end of each mounting plate 3 away from the prefabricated stairs 1, and each second inserting rib 4 is formed by two vertically distributed steel bars, and the second inserting ribs 4 face away from the mounting plate 3 in the horizontal direction. In the direction of extension. A number of notches 5 are also provided on the lower end surface of each mounting plate 3, and each notch 5 is provided through the mounting plate 3 in a vertical direction. The notches 5 are located at one end of the mounting board 3 aw...
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