CN217871277U - Support-free precast concrete 3T laminated slab - Google Patents

Abstract

The utility model relates to a support-free precast concrete 3T superimposed sheet, the precast concrete 3T board includes the concrete flat board and the three concrete rib roof beams that set up along the concrete flat board main stress direction, and the concrete rib roof beam sets up at the bottom face of concrete flat board, sets up in the joint part of concrete flat board and concrete rib roof beam and adds the armpit; two tip of concrete rib roof beam all are equipped with the connection installation notch that is used for connecting the U-shaped steel corbel, the concrete rib roof beam exposes at the dull and stereotyped top of concrete and pushes up the longitudinal bar with the rib roof beam of the integrative rib stirrup of pouring of superimposed sheet cast-in-place layer, concrete rib roof beam top is equipped with a plurality of steel of being used for the whole hoisting of prefabricated component and hangs and collude, the bottom of concrete rib roof beam is equipped with a plurality of pre-buried bolts that are used for installing horizontal rigidity reinforcing means additional, the tip of concrete slab edge secondary stress direction sets up board top chamfer and board end indent for joint sealing between two adjacent boards.

Description

Support-free precast concrete 3T laminated slab

Technical Field

The utility model relates to an exempt from to support precast concrete 3T superimposed sheet uses at assembly type structure technical field.

Background

According to the existing fabricated building, the use amount of the precast concrete composite floor slab is very large, the precast concrete composite floor slab is the most main precast component, in the construction process of the composite floor slab, a template and a support frame system which are the same as those of the traditional cast-in-place floor slab still need to be erected, time and labor are wasted, materials are wasted, and the advantages of fabricated building cannot be reflected.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an exempt from to support precast concrete 3T superimposed sheet hoists and to take one's place the back and can bear oneself, need not to set up at the bottom of the plate support and template in the work progress, saved the time of setting up at the bottom of the plate support and template, manpower, expense such as material, embodied the superiority of assembled construction mode.

The technical scheme of the utility model as follows:

a support-free precast concrete 3T laminated slab comprises a precast concrete 3T slab, wherein the precast concrete 3T slab comprises a concrete flat slab and three concrete rib beams arranged along the main stress direction of the concrete flat slab, the concrete rib beams are arranged on the bottom surface of the concrete flat slab, and an haunching is arranged at the connecting part of the concrete flat slab and the concrete rib beams; two tip of concrete rib roof beam all are equipped with the connection installation notch that is used for connecting the U-shaped steel corbel, the concrete rib roof beam exposes at the dull and stereotyped top of concrete and pushes up the longitudinal bar with the rib roof beam of the integrative rib stirrup of pouring of superimposed sheet cast-in-place layer, concrete rib roof beam top is equipped with a plurality of steel of being used for the whole hoisting of prefabricated component and hangs and collude, the bottom of concrete rib roof beam is equipped with a plurality of pre-buried bolts that are used for installing horizontal rigidity reinforcing means additional, the tip of concrete slab edge secondary stress direction sets up board top chamfer and board end indent for joint sealing between two adjacent boards.

The concrete rib beam and the concrete slab are integrally formed.

The steel hooks are uniformly distributed on the top surface of the concrete slab.

U-shaped steel bracket includes the U-shaped steel notch, connects anchor board and anchor reinforcing bar, and the welding of one side of connecting the anchor board has the U-shaped steel notch, and the welding of the opposite side of connecting the anchor board has a plurality of anchor reinforcing bars.

U-shaped steel bracket and concrete rib roof beam one-to-one, U-shaped steel bracket is buried underground in the corresponding concrete rib roof beam of periphery accurately, and the U-shaped steel bracket closely laminates with the connection installation notch of concrete rib roof beam tip.

The utility model discloses following beneficial effect has:

(1) The laminated slab has self-bearing capacity, and can achieve the expected purpose of no support of the laminated slab;

(2) The laminated plate has a support-free capacity, so that the time, labor, material and other expenses for erecting and dismantling the lower template and the support of the laminated plate can be saved;

(3) The construction method meets the requirement of green construction, and effectively reduces the generation of various construction waste materials on construction sites.

Drawings

FIG. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic bottom structure of the present invention;

FIG. 3 is a schematic structural diagram of a U-shaped steel bracket;

FIG. 4 is a schematic view of the installation state of the U-shaped steel bracket;

FIG. 5 is a schematic view showing a combined state of the support-free precast concrete 3T laminated slab and the U-shaped steel bracket;

in the figures, the reference numbers are given by:

1. prefabricating a concrete 3T plate; 2. a concrete rib beam; 3. a concrete slab; 4. adding an armpit; 5. connecting the mounting notches; 6. u-shaped steel corbels; 7. a rib beam stirrup; 8. rib beam top longitudinal bars; 9. a steel hook; 10. Embedding bolts; 11. chamfering the top of the plate; 12. pressing grooves at the bottom of the plate; 13. a U-shaped steel notch; 14. connecting the anchoring plates; 15. and anchoring the steel bars.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 5, the support-free precast concrete 3T composite slab comprises a precast concrete 3T slab 1, wherein the precast concrete 3T slab 1 comprises a concrete flat plate 3 and three concrete rib beams 2 arranged along the main stress direction of the concrete flat plate 3, the concrete rib beams 2 are arranged on the bottom surface of the concrete flat plate 3, and armpits 4 are arranged at the connecting parts of the concrete flat plate 3 and the concrete rib beams 2; two tip of concrete rib 2 all are equipped with the connection installation notch 5 that is used for connecting U-shaped steel corbel 6, concrete rib 2 exposes at concrete slab's 3 top and pushes up vertical muscle 8 with rib 7 that the cast-in-place layer of superimposed sheet was integrative pours, concrete rib 2 top is equipped with a plurality of steel of being used for the whole prefabricated component to lift by crane 9, concrete rib 2's bottom is equipped with a plurality of buried bolts 10 in advance that are used for installing horizontal rigidity reinforcing means additional, concrete slab 3 sets up board top chamfer 11 and board end indent 12 along the tip of inferior atress direction for airtight connection between two adjacent boards.

The concrete rib beam 2 and the concrete flat plate 3 are integrally formed.

The steel lifting hooks 9 are uniformly distributed on the top surface of the concrete slab 3.

U-shaped steel bracket 6 includes U-shaped steel notch 13, connects anchor plate 14 and anchor reinforcing bar 15, and the welding of one side of connecting anchor plate 14 has U-shaped steel notch 13, and the welding of the opposite side of connecting anchor plate 14 has a plurality of anchor reinforcing bars 15.

U-shaped steel bracket 6 and concrete rib roof beam 2 one-to-one, U-shaped steel bracket 6 is buried underground in peripheral corresponding concrete rib roof beam 2 accurately, and U-shaped steel bracket 6 closely laminates with the connection installation notch 5 of concrete rib roof beam 2 tip.

The utility model discloses a theory of operation:

the upper part of a precast concrete 3T plate 1 of a main structure is a concrete flat plate 3, the lower part is a concrete rib beam 2, the precast concrete is integrally poured and precast by a factory, the concrete flat plate 3 is mainly characterized by a plate top chamfer 11 and a plate bottom indent 12 of a plate end, the concrete rib beam 2 is mainly characterized by a rib beam stirrup 7 with an exposed top, a rib beam top longitudinal bar 8, a steel hook 9, a pre-embedded bolt 10 at the bottom and a connecting installation notch 5 at the end part, a concrete haunch 4 is also arranged at the joint of the concrete flat plate 3 and the concrete rib beam 2, a U-shaped steel bracket 6 of a supporting structure is formed by welding a U-shaped steel notch 13, a connecting anchoring plate 14 and an anchoring steel bar 15, and the U-shaped steel bracket 6 is accurately embedded in the corresponding concrete beam at the periphery;

use the utility model discloses the time, pre-buried precast concrete roof beam that has U-shaped steel bracket 6 erects the back of taking one's place, uses handling equipment will exempt from to support precast concrete 3T board 1 and hang to predetermined mounted position, slowly falls, makes to connect mounting notch 5 and U-shaped steel notch 13 accuracy laminating and take one's place, realizes bearing. And then carrying out the layout of the reinforcing steel bars of the cast-in-place part of the laminated slab and the casting operation of the cast-in-place concrete.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (5)

1. The utility model provides an exempt from to support precast concrete 3T superimposed sheet, includes precast concrete 3T board (1), its characterized in that: the precast concrete 3T plate (1) comprises a concrete flat plate (3) and three concrete rib beams (2) arranged along the main stress direction of the concrete flat plate (3), the concrete rib beams (2) are arranged on the bottom surface of the concrete flat plate (3), and haunches (4) are arranged at the connecting parts of the concrete flat plate (3) and the concrete rib beams (2); two tip of concrete rib roof beam (2) all are equipped with connection installation notch (5) that are used for connecting U-shaped steel bracket (6), concrete rib roof beam (2) expose at the top of concrete slab (3) with the integrative rib beam stirrup (7) and the rib roof longitudinal bar (8) of pouring of superimposed sheet cast-in-place layer, concrete rib roof beam (2) top is equipped with a plurality of steel lifting hooks (9) that are used for the whole hoisting of prefabricated component, the bottom of concrete rib roof beam (2) is equipped with a plurality of buried bolt (10) in advance that are used for installing horizontal rigidity reinforcing apparatus additional, concrete slab (3) set up board top chamfer (11) and board bottom indent (12) along the tip of inferior atress direction for joint sealing between two adjacent boards is connected.

2. The support-free precast concrete 3T composite slab as recited in claim 1, wherein: the concrete rib beam (2) and the concrete slab (3) are integrally formed.

3. The support-free precast concrete 3T laminated slab of claim 1, wherein: the steel lifting hooks (9) are uniformly distributed on the top surface of the concrete slab (3).

4. The support-free precast concrete 3T composite slab as recited in claim 1, wherein: u-shaped steel bracket (6) include U-shaped steel notch (13), connect anchor board (14) and anchor reinforcing bar (15), and the welding of one side of connecting anchor board (14) has U-shaped steel notch (13), and the welding of the opposite side of connecting anchor board (14) has a plurality of anchor reinforcing bars (15).

5. The support-free precast concrete 3T superimposed sheet according to claim 4, wherein: u-shaped steel bracket (6) and concrete rib roof beam (2) one-to-one, U-shaped steel bracket (6) are buried underground in peripheral corresponding concrete rib roof beam (2) accurately, and U-shaped steel bracket (6) closely laminate with being connected installation notch (5) of concrete rib roof beam (2) tip.

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