Precast prestressed-concrete slab-type stair and making construction method
A concrete slab, prestressed technology, applied in stairs, treads, stepped structures, etc., can solve the problems of difficult transportation and installation, affecting normal use, easy cracking of the bottom of the slab, etc., to improve the out-of-plane stiffness and crack resistance performance, The effect of reducing damage and reducing self-weight
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[0038] Refer to the attached figure 1 to attach Figure 7 A prefabricated prestressed concrete slab staircase of the present invention and its manufacturing and construction method are described in detail below.
[0039] A prefabricated prestressed concrete slab staircase of the present invention comprises a slab staircase body 1 inclinedly arranged, an upper staircase platform 2, a lower staircase platform 3, an upper staircase beam 4 and a lower staircase beam 5, the upper staircase platform 2 and the upper staircase The stair beam 4 is connected, the lower stair platform 3 is connected with the lower stair beam 5, the two ends of the slab staircase body 1 are respectively connected with the upper stair beam 4 and the lower stair beam 5, and the upper stair beam 5 of the slab staircase body 1 There is a stepped step 6, the upper end surface of the step 6 is a horizontal step surface, the anti-slip strip installation groove 7 is arranged on the step surface, and the anti-sli...
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