A method of improving the shear bearing capacity of the end section of the planted bar under the action of fatigue load
A technology of shear bearing capacity and rebar planting, which is used in the application of stable tension/pressure to test the strength of materials, building maintenance, instruments, etc. The shear failure of the end section, the improvement of the shear resistance of the section, and the improvement of the mechanical performance
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Embodiment 1
[0037] This method is applied when the original member is a beam (see figure 1 ), the specific construction steps are as follows:
[0038] Step 1, calculate the design value a of the anchorage depth of the planting bar according to the formula;
[0039] Step 2, use ultrasonic detection or refer to the drawing of the original component to detect whether the original component stirrup 2 exists in the planting bar end 5 of the planting bar 3 within the range b; when there is the original component stirrup 2 in the b range, the The anchorage depth of the reinforcement is reduced, so that the end 5 of the planting reinforcement is located at the position of the stirrup 2 of the original member (see figure 2 ); when there is no original member stirrup 2 in the scope of b, the position of the end 5 of the planting bar does not move, the anchorage depth of the planting bar 3 is a, and U is pasted on the periphery of the original member 1 at the position 5 of the planting bar end st...
Embodiment 2
[0044] This method is applied when the original member is a plate structure (see Image 6 ), the specific construction steps are as follows:
[0045] Step 1, calculate the design value a of the anchorage depth of the planting bar according to the formula;
[0046] Step 2: implant the planting bar 3, the original component stirrup 2 is perpendicular to the axial direction of the planting bar 3, and make the planting bar anchorage depth reach the planting bar anchorage depth design value a, paste the plane at the end 5 of the planting bar on the surface of the original member 1 steel plate; the plane steel plate is parallel to the axial direction of the original member 1;
[0047] Step 3, pouring the reinforcement 3 into the reinforcement board 9;
[0048] What is not mentioned in the present invention is applicable to the prior art.
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