Combined type anchor padding plate and method for manufacturing same

Abstract

The invention provides a combined type anchor padding plate, which is formed by a middle steel padding plate with a hollow central part and a super high strength concrete pressure-bearing piece coated on the lower part and / or the periphery of the middle steel padding plate; and the super high strength concrete pressure-bearing piece is a super high strength active powder concrete component of which the ultimate compressive strength is more than 120MPa and the ultimate breaking strength is more than 12MPa. The method for manufacturing the combined type anchor padding plate comprises the following steps: putting the manufactured middle steel padding plate used as an inner mould in a component forming mould for manufacturing the super high strength concrete pressure-bearing piece, adding the super high strength active powder concrete, manufacturing a moulding piece of the combined type anchor padding plate, which combines the middle steel padding plate and the super high strength concrete pressure-bearing piece, and performing working procedures of the moulding piece, such as natural curing and the like to manufacture the combined type anchor padding plate. The combined type anchor padding plate has the advantages of optimized structure, low steel consumption, low cost, smaller stress under the anchor, more uniform distribution of the stress under the anchor, more convenient dense casting of concrete under the anchor and more convenient field construction and laying of auxiliary reinforcements.

Description

Technical field: [0001] The invention relates to a pressure-bearing plate in a concrete building structure whose compressive strength value is more than three times lower than that of steel parts, which can reliably transfer and disperse high concentrated stress, especially a kind of anchorage An anchor backing plate for transmitting and dispersing concentrated force into a concrete anchorage area and a manufacturing method thereof. Background technique: [0002] Anchors for concrete structures are composed of anchors, anchor pads and reinforced steel bars. The anchors 4 anchor the prestressed tendons 3, while the anchor pads 8 and reinforced spiral steel bars 6 are pre-embedded in the concrete 7 (see Figure 9 , the clip 41 and the anchor plate 42 form the clip-type anchor 4 in the figure, and the anchor can also be other types of anchors) to disperse the concentrated stress transmitted by the anchor so that it can be more evenly transmitted to the Concrete to go. Since th...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a composite anchor backing plate with optimized product structure, less consumption of steel materials, low cost, smaller stress under anchorage, and more uniform distribution, so as to solve the problem that the existing anchor backing plate consumes more steel materials, and the production In order to solve the problem of high cost, at the same time, it also provides the components of the active powder concrete used in the ultra-high-strength concrete pressure-bearing parts that constitute the composite anchor pad and the manufacturing method of the composite anchor pad

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