Concrete prefabricated plate end overhanging steel bar removed structure and construction method
A technology of concrete and prefabricated panels, applied in building structures, floors, building components, etc., can solve problems such as conflicts and construction difficulties, and achieve the effect of clear force transmission and force mechanism, avoiding construction difficulties, and easy realization.
Active Publication Date: 2017-10-13
TSINGHUA UNIV
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Problems solved by technology
[0005] The present invention proposes a structure and construction method in which the beard bars are eliminated at the end of the concrete prefabricated slab, which can solve the
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[0025] Below in conjunction with accompanying drawing, structure of the present invention, construction process are further described as follows.
[0026] Such as figure 1 Shown, a kind of concrete prefabricated slab end of the present invention cancels the structure of beard tendon and comprises slab end grooved concrete prefabricated slab 1 and upper concrete post-casting layer 4, wherein concrete prefabricated slab 1 adopts slab end without rib structure (i.e. cancels Beard tendons), the end of the reinforced steel bar 2 in the concrete precast slab is flush with the slab end of the concrete precast slab 1, and a row of wedge-shaped slot holes 3 are reserved at the support of the slab end, and the wedge-shaped slot holes 3 are evenly distributed on the concrete precast slab The depth of the slot hole between the internal stressed steel bars 2 is less than the thickness of the precast concrete slab 1, which ensures the integrity of the bottom of the precast concrete slab 1 a...
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Belonging to the technical field of building structures, the invention relates to a concrete prefabricated plate end overhanging steel bar removed structure and a construction method. The structure comprises a concrete prefabricated plate and an upper concrete post-pouring layer, the concrete prefabricated plate has no end overhanging steel bar, an end support of the concrete prefabricated plate is equipped with wedge-shaped slot holes, the slot holes are evenly distributed among stressed steel bars in the concrete prefabricated plate, and the slot hole depth is smaller than that of the concrete prefabricated plate, the concrete prefabricated plate end is connected to a vertical support beam or wall, and reserved steel bars are disposed above the vertical support beam or wall. The upper concrete post-pouring layer and the concrete prefabricated plate form a concrete laminated slab, and the concrete prefabricated plate is in firm connection with the post-pouring layer and adjacent components through post-poured concrete in the wedge-shaped slot holes. The concrete prefabricated plate end overhanging steel bar removed structure provided by the invention has a connection effect completely equal to a connection structure adopting an overhanging steel bar, effectively improves the integrity and safety of an assembled monolithic concrete structure, has a clear stress mechanism, is convenient for construction, and is economical and practical.
Description
technical field [0001] The invention discloses a structure and a construction method for removing beard tendons at the ends of concrete prefabricated slabs, which are applied to assembled integral concrete structures and belong to the technical field of building structures. Background technique [0002] In prefabricated monolithic concrete structures, a post-cast layer is generally provided to realize the connection between prefabricated components. Among them, prefabricated components need to protrude steel bars (beard bars) to anchor in the post-casting section to ensure reliable connection between adjacent components, so that the overall performance of the structure is equal to or close to that of cast-in-place structures. The force transmission of the above-mentioned structure is reliable, but the connection structure is complicated, especially at the support (including beams and walls), the externally extended steel bars (beard bars) at the end of the concrete precast s...
Claims
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Login to View More IPC IPC(8): E04C2/06E04C2/30E04B5/38
CPCE04B5/38E04C2/06E04C2/30E04C2002/004
Inventor杨悦聂鑫聂建国
OwnerTSINGHUA UNIV