Device for testing shear strength of joint of external prestressing prefabrication and assembly concrete member
A prefabricated assembly, shear strength technology, applied in the direction of using a stable shear force to test the strength of materials, can solve the problems of not easy to control the shear force, not shear loading, and low shear loading efficiency.
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Embodiment 1
[0026] Embodiment one: if figure 2 As shown, a prefabricated assembled concrete component joint shear strength test device includes a loading base 1, a support 2 arranged on the loading base 1, a prefabricated assembled component and a hydraulic jack 5 arranged on the prefabricated assembled component. The assembled component is arranged on the support 2, and the prefabricated assembled component includes a first segment member 3 and a second segment member 4, wherein the first segment member 3 is arranged on the support 2, and the hydraulic jack 5 is arranged on the second segment On the upper end face of the segmental member 4, a vertical shearing force is applied to the prefabricated assembled member through the hydraulic jack 5; the cross section of the first segmental member 3 is L-shaped, and the cross-section of the second segmental member 4 is inverted L-shaped , the first segment member 3 and the second segment member 4 are assembled by a prestressed tensioning devic...
Embodiment 2
[0032] Embodiment 2: other parts are the same as Embodiment 1, the difference is that the inner surface of the first segment member 3 forming the vertical joint is opposite to the second segment member 4 and is provided with a shear key, such as image 3 shown.
Embodiment 3
[0033] Embodiment three: other parts are the same as embodiment one, the difference is that the vertical seam 6 is a wet seam, such as Figure 4 As shown, where the wet joint is filled with concrete or mortar or epoxy glue.
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