CN-122013922-A - Stiffening integrated plate, stiffening integrated laminated slab, stiffening integrated laminated beam slab structure and construction method thereof

CN122013922ACN 122013922 ACN122013922 ACN 122013922ACN-122013922-A

Abstract

The application provides a stiffening integrated plate, a stiffening integrated laminated beam plate structure and a construction method thereof, belonging to the field of assembly type buildings, the stiffening integrated plate comprises a hollow plate body and plate rib connecting pieces, wherein prestressed steel strands are stretched in the hollow plate body, a plurality of holes are formed in the hollow plate body at intervals along the width direction of the plate, and plate ribs are formed on the side parts of the holes; the slab rib connecting piece is buried underground at least in the slab rib direction of hollow plate body, and has at least one slab rib connecting piece to be located hollow plate body's tip, the inside post-cast cavity that can be poured of slab rib connecting piece, be equipped with post-cast structure muscle in the post-cast cavity, the slab rib connecting piece is through wearing to establish additional shear bar in the board thickness central line position, and wear to establish the restraint arch by prestressing steel strand wires, the slab rib connecting piece forms the stiffening hidden roof beam through pouring post-cast cavity cooperation slab rib, link into a whole prestressing steel strand wires and additional shear bar, thereby promote structural safety and shear resistance by a wide margin.

Inventors

GUO CAO
GUAN YI

Assignees

上海砼谦建筑科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260309

Claims (15)

1. A stiffened integrated panel, comprising: The hollow plate body is provided with a plurality of holes at intervals along the width direction of the plate, plate ribs are formed on the side parts of the holes, and prestressed steel strands are stretched in the longitudinal direction of the plate; the slab rib connecting piece is at least buried in the slab rib direction of the hollow slab body, at least one slab rib connecting piece is positioned at the end part of the hollow slab body, a post-cast cavity which can be cast is formed in the slab rib connecting piece, the slab rib connecting piece is matched with the slab rib to form a stiffening hidden beam through casting the post-cast cavity, a first through hole communicated with the post-cast cavity is formed in the slab rib connecting piece at the position of the slab center line of the hollow slab body, additional shear bars are arranged in the first through hole in a penetrating mode, and the prestressed steel stranded wires penetrate through the slab rib connecting piece and are restrained and inverted arch.
2. The stiffened integrated panel of claim 1, wherein the hollow panel body is defined above the apertures as a roof structural layer and below as a floor structural layer, wherein roof structural ribs are provided within the roof structural layer and floor structural ribs are provided within the floor structural layer, wherein the floor rib connectors are provided at the bottom of the floor structural layer, wherein the pre-stressed steel strands are implemented as at least first pre-stressed steel strands located at the floor structural layer below the ribs, wherein the first pre-stressed steel strands pass through the rib connectors and are constrained against arches.
3. The stiffened integrated panel of claim 2, wherein the rib connector comprises a first body and a second body, the first body being embedded in a rib direction of the hollow panel, the second body being connected to the first body and further embedded in the bottom structural layer, the post-cast cavity being formed at least in the first body, the first prestressed steel strands passing through the second body.
4. The stiffened integrated panel of claim 3, wherein the post-cast cavity comprises a first post-cast cavity and a second post-cast cavity in communication with each other, the first post-cast cavity being formed in the first body and the second post-cast cavity being formed in the second body.
5. The stiffened integrated panel of claim 4, wherein the second body is provided with a second through hole co-directional with the first through hole, the first pre-stressed steel strand passing through the second through hole and being constrained by the second body against arching.
6. The stiffened integrated panel of claim 5, wherein the second body is provided with a third through hole having a different direction from the second through hole, and wherein a structural rib is disposed in the third through hole, the structural rib being pressed against the first prestressed steel strand to constrain an arch.
7. The stiffened integrated panel of claim 5, wherein post-cast structural ribs are disposed in the post-cast cavity, the post-cast structural ribs comprise at least tie bars, the roof structural ribs comprise at least roof structural longitudinal ribs in the same direction as the first prestressed steel strands, and the top and bottom of the tie bars are connected to the roof structural longitudinal ribs and the first prestressed steel strands, respectively.
8. The stiffened integrated panel of claim 2, further comprising intercostal connectors buried in the panel base structure layer and positioned between adjacent ones of the panel ribs, the intercostal connectors having fourth through holes co-directional with the second through holes, the prestressed strands further implemented as second prestressed strands positioned in the panel base structure layer between the panel ribs, the second prestressed strands passing through the fourth through holes and constrained by the intercostal connectors.
9. A stiffened integrated composite panel comprising a stiffened integrated panel according to any one of claims 1-8, said stiffened integrated panel having a cast-in-place layer thereon.
10. The stiffened integrated composite slab of claim 9, wherein the post-cast cavity is connected to the cast-in-place space of the cast-in-place layer and integrally cast by the cast-in-place layer.
11. The stiffened integrated composite panel of claim 9, wherein the top of the panel rib connector extends into the cast-in-place layer to form an elevation control point for the cast-in-place layer.
12. A stiffened integrated laminated beam panel structure comprising a structural beam and the stiffened integrated laminated slab of any of claims 9-11, the additional shear bars being connected to the structural beam.
13. The method of claim 12, wherein the structural beam is a composite beam, the composite beam comprises a beam prefabricated part and a beam composite part, the stiffening integrated composite slab is supported on one side of the composite beam, the additional shear bars extend to the beam composite part, and the cast-in-situ layer is communicated with the beam composite part to form a beam slab cast-in-situ node.
14. The stiffened integrated composite beam slab structure of claim 13, wherein the additional shear bars comprise at least a first additional shear bar section and a second additional shear bar section, the first additional shear bar section is embedded in the slab rib along the slab length direction and extends in the post-cast cavity of the slab rib connecting piece, and one end of the second additional shear bar section is connected to the first additional shear bar section through the first through hole and is matched with a connecting sleeve, and the other end of the second additional shear bar section extends in the beam composite portion.
15. A method of constructing a stiffened integrated composite beam-slab structure according to any one of claims 12 to 14, comprising the steps of: the prefabricated stiffening integrated plate is characterized in that the plate rib connecting pieces are arranged on a forming die table of the hollow plate body, the post-pouring structural ribs are arranged when the ribs are distributed along with the hollow plate body, the plate rib connecting pieces are buried in the plate rib direction of the hollow plate body along with the forming of the hollow plate body, and at least one plate rib connecting piece is ensured to be positioned at the end part of the hollow plate body; hoisting a stiffening integrated plate, hoisting and supporting the stiffening integrated plate on the side part of the structural beam, penetrating the additional shearing resistant ribs into first through holes formed in the plate rib connecting piece and the plate thickness center line of the hollow plate body, and keeping the additional shearing resistant ribs inserted into the post-pouring cavity; The stiffening integrated laminated slab is provided with the reinforcement, the stiffening integrated plate is provided with the structural reinforcement of the cast-in-situ layer, and the additional shearing-resistant reinforcement is lapped and extends on the structural beam; and (3) cast-in-situ molding, namely integrally casting the stiffening integrated laminated slab and the node of the structural beam by matching with a cast-in-situ layer, and at least ensuring casting of the post-cast cavity in the slab rib connecting piece.

Description

Stiffening integrated plate, stiffening integrated laminated slab, stiffening integrated laminated beam slab structure and construction method thereof Technical Field The invention belongs to the field of assembled buildings, and particularly relates to a stiffening integrated plate, a stiffening integrated laminated beam plate structure and a construction method thereof. Background The SP board (prestressed concrete hollow board) adopts the technological process and trademark authorization technology of the company SPANCRETE in the United states, and is characterized in that the full-large-core prestressed steel strand is designed, the board height is 100-380 mm, the mark span is 18m, different fire resistance and stress requirements are realized through the thickness of a protective layer (25 mm/40 mm) and a laminated layer (SPD board), the EHC board (extrusion molding prestressed hollow board) is produced by means of an automatic extrusion process, the central position of a prestressed rib at the bottom of the board is divided into two types of 35mm/45mm, the geometric dimension is accurate and the compactness is high, the full-large-core prestressed steel strand is suitable for equivalent earthquake-proof fortification, but the local reinforcement is needed after cutting, and the special design of a connecting node is needed in a high-intensity area. However, the prior art has the following defects: 1. No shearing lacing wire is arranged, so that the risk of shearing damage exists, the shearing is insufficient, the brittle failure is caused, and the potential safety hazard is large; 2. the cavities of the two are unfavorable for later decoration, and holes are easy to be drilled in during decoration, drilling and the like. 3. Only one steel strand can be arranged under the ribs, the steel strands cannot be arranged between the ribs, the position of the steel strands is fixed by the reinforcement arrangement mode, the forward reinforcement arrangement (reinforcement arrangement according to load) logic of a designer is limited, the reverse reinforcement arrangement (according to the existing reinforcement arrangement and the reverse load size) is only realized, and the popularization and the application of the technology are limited. 4. The engagement of the steel strand with the concrete is not constrained, and there is a safety risk. 5. The transverse steel bars are not arranged, the plate width is all 1.2 meters, and only one plate width limit value is used for the application scene of the plate. 6. The joint of the plate end and the beam is not provided with additional shearing resistant ribs, so that the hidden danger of shearing resistance exists. 7. The building functions of heat preservation and sound insulation are not arranged. Thus, the present invention has been completed. It should be noted that the information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art. Disclosure of Invention The invention aims to provide a hollow slab with high structural safety; the invention aims at providing a hollow laminated slab with high structural safety; the third purpose of the invention is to provide a beam plate structure which has high structural safety and is easy to install; The fourth purpose of the invention is to provide a beam slab structure construction method which has high structure safety and is easy to install; to achieve one of the above objects, the present invention provides a stiffened integrated panel, comprising: The hollow plate body is provided with a plurality of holes at intervals along the width direction of the plate, plate ribs are formed on the side parts of the holes, and the hollow plate body 1 is stretched with prestressed steel strands in the length direction of the plate; The slab rib connecting piece is at least buried in the slab rib direction of the hollow slab body, at least one slab rib connecting piece is positioned at the end part of the hollow slab body, a post-cast cavity which can be poured is formed in the slab rib connecting piece, post-cast structural ribs are arranged in the post-cast cavity, the slab rib connecting piece is matched with the slab rib to form a stiffening hidden beam through pouring, a first through hole which is communicated with the post-cast cavity is formed in the slab rib connecting piece at the position of the slab center line of the hollow slab body, additional shear ribs are arranged in the first through hole in a penetrating mode, and the prestressed steel stranded wire penetrates through the slab rib connecting piece and is restrained and inverted-arched. Preferably, the hollow slab body is defined as a slab top structural layer above the holes, the lower part is defined as a slab bottom structural layer, sl