Steel bar planting method and steel bar planting structure suitable for improving plain concrete post-installed fastening bearing capacity
A technology of plain concrete and bearing capacity, which is applied in the field of planting bars that provide the post-anchoring bearing capacity of plain concrete, can solve the problems of insufficient strength of the plain concrete base material and the failure of the post-anchoring bearing capacity to meet the requirements of the specification, so as to improve the bearing capacity and avoid the Pull out the destruction effect
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Embodiment 1
[0030] combine figure 1 , figure 2 , a kind of bar planting structure and implementation method suitable for improving the post-anchor bearing capacity of plain concrete is as follows:
[0031] (1) According to the design load requirements, the size and strength of the plain concrete substrate, determine the core size, the diameter of the small-diameter steel bar and the depth of the planting channel of the small-diameter steel bar, the size of the stirrup, the size of the main load-bearing steel bar, and the strength of the newly poured concrete;
[0032] (2) According to the design load requirements, the size and strength of the plain concrete base material, the coring size is determined, and the core is taken on the plain concrete base material, and the coring is completed with a coring bucket. After the coring, a core hole is left on the plain concrete , the shape of the core hole is cylindrical;
[0033] (3) Drill holes vertically at the bottom of the core hole to form...
Embodiment 2
[0038] combine figure 1 , figure 2 , a bar planting structure for improving the anchorage bearing capacity of plain concrete, comprising core holes, small-diameter steel bars, stirrups and main load-bearing steel bars offered on said plain concrete in claim 1; at the bottom of said core holes Carry out vertical drilling to construct a plurality of vertical small-diameter steel bar planting tunnels, the small-diameter steel bar planting tunnels are slightly larger than the small-diameter steel bars, and the preferred number of small-diameter steel bar planting tunnels is 3- 12; the lower end of the small-diameter steel bar is installed in the small-diameter steel bar channel through planting bars, and the upper end is located in the core hole; the small-diameter steel bar planting bar channels are evenly distributed on the same circumference; the main The lower end of the load-bearing steel bar is vertically installed at the center of the circumference, preferably the main lo...
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