CN-122013923-A - Stiffening composite beam plate, stiffening composite beam plate group, laminated beam plate structure, construction method and application thereof

CN122013923ACN 122013923 ACN122013923 ACN 122013923ACN-122013923-A

Abstract

The application provides a stiffening composite beam plate, a stiffening composite beam plate group, a superposed beam plate structure, a construction method and application thereof, belonging to the field of assembly type building, wherein the stiffening composite beam plate comprises stiffening rib beams and stiffening panels, the stiffening panels are designed into a composite structure of a prefabricated sandwich plate (lower plate, heat insulation and sound insulation layer, upper plate and cast-in-situ layer), the shear-resistant connecting keys (such as steel pipes) penetrate through the heat insulation layer and draw the upper precast slab and the lower precast slab, so that the three layers form an integral common stress, the rigidity and the integrity of the stiffening panel are greatly improved, and the deflection and the crack development of the overhanging end are effectively inhibited.

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 (16)

1. The stiffening composite beam plate comprises a stiffening rib beam and a stiffening panel, wherein the stiffening rib beam is formed below the stiffening panel, the stiffening panel at least comprises a prefabricated part and a cast-in-situ part, the prefabricated part comprises a lower layer plate, an upper layer plate, a heat-insulating sound-insulating layer and a shearing-resistant connecting key, the lower layer plate and the stiffening rib beam are integrally formed, the heat-insulating sound-insulating layer is located between the upper layer plate and the lower layer plate, the shearing-resistant connecting key penetrates through the heat-insulating sound-insulating layer, two ends of the heat-insulating sound-insulating layer are respectively tied to the upper layer plate and the lower layer plate, and the cast-in-situ part is located on the upper layer plate.
2. The stiffened composite beam panel of claim 1, wherein the shear bond is a steel tube.
3. The stiffened composite beam panel of claim 1, wherein at least one of the shear bond is located at the stiffening rib, the bottom of the shear bond being connected to the stiffening rib.
4. The stiffened composite beam panel of claim 3, wherein the plurality of shear tie-lines are arranged along the beam length direction of the stiffening rib, the bottoms of the shear tie-lines are connected to a stiffening rib reinforcement cage of the stiffening rib, and the structural ribs of the stiffening panel extend through the shear tie-lines.
5. A stiffened composite beam-sheet set comprising a plurality of stiffened composite beam-sheets according to any one of claims 1 to 4, wherein adjacent stiffened composite beam-sheets on the sides of the stiffened panel are connected by a bridge.
6. The stiffened composite beam-plate set of claim 5, wherein post-cast spaces are formed between ends of stiffening panels of adjacent stiffening composite beam-plates, wherein the ends of lower plates of adjacent stiffening composite beam-plates are ribbed, wherein the lap joint members overlap the ends of the lower plates adjacent the ribs, and wherein heat-insulating and sound-insulating layers are arranged in the post-cast spaces.
7. The stiffened composite beam-sheet set according to claim 5, wherein post-cast spaces are formed between ends of stiffening panels of adjacent stiffening composite beam-sheets, ends of upper and lower sheets of adjacent stiffening composite beam-sheets are ribbed and form U-shaped structural ribs, and the bridge members overlap the U-shaped structural ribs of adjacent stiffening panels.
8. The stiffened composite beam plate group of claim 5, wherein the lower plate ends of adjacent stiffened composite beam plates are closely spliced, the upper plate ends are matched with the lower plate to form post-cast grooves, heat insulation and sound insulation layers are arranged in the post-cast grooves, the end parts of the upper plates of adjacent stiffened composite beam plates are provided with ribs, and the lap joint pieces are lapped with the end parts of the adjacent upper plates.
9. The stiffened composite beam-panel assembly of claim 5, wherein the bridge spans the seam between the stiffening panel ends of adjacent stiffening composite beam-panels.
10. A laminated beam-slab structure, comprising the stiffening composite beam-slab set according to any one of claims 5 to 9, wherein the cast-in-place portion of the stiffening composite beam-slab set is integrally cast on the stiffening panel to form a cast-in-place layer.
11. A method of constructing a laminated beam panel structure as claimed in claim 10, comprising the steps of: The prefabricated stiffening composite beam plate comprises a stiffening panel and a stiffening rib beam, wherein the stiffening panel at least comprises a prefabricated part and a cast-in-situ part, the prefabricated part comprises a lower layer plate, an upper layer plate, a heat-insulating sound-insulating layer and a shearing-resistant connecting key, the lower layer plate and the stiffening rib beam are integrally formed, and the shearing-resistant connecting key penetrates through the heat-insulating sound-insulating layer and two ends of the shearing-resistant connecting key are respectively tied to the upper layer plate and the lower layer plate; Installing a stiffening composite beam plate group, hoisting the stiffening composite beam plates to a main structure, and connecting adjacent stiffening composite beam plates at the side parts of the stiffening panel in a lap joint way through lap joint pieces; And integrally casting the cast-in-situ prefabricated part on the stiffening composite beam plate group to form a cast-in-situ layer on the stiffening panel.
12. The construction method according to claim 11, wherein: When the stiffening composite beam plate group is installed, a post-pouring space is formed between the end parts of stiffening panels of the adjacent stiffening composite beam plates, the end parts of lower laminates of the adjacent stiffening composite beam plates are ribbed, the lap joint pieces are lapped on the end parts of the adjacent lower laminates, and a heat-insulating and sound-insulating layer is arranged in the post-pouring space independently; and filling the post-pouring space when the prefabricated part is integrally cast-in-situ.
13. The construction method according to claim 11, wherein: When the stiffening composite beam plate group is installed, a post-pouring space is formed between the end parts of stiffening panels adjacent to the stiffening composite beam plate, the end parts of an upper layer plate and a lower layer plate of the stiffening composite beam plate are ribbed and form U-shaped structural ribs, and the lap joint pieces are lapped on the U-shaped structural ribs of the stiffening panels adjacent to the stiffening composite beam plate; and filling the post-pouring space when the prefabricated part is integrally cast-in-situ.
14. The construction method according to claim 11, wherein: When the stiffening composite beam plate group is installed, the end parts of the lower layer plates of the adjacent stiffening composite beam plates are closely spliced, a post-pouring groove is formed between the end parts of the upper layer plates by matching with the lower layer plates, a heat-insulating and sound-insulating layer is arranged in the post-pouring groove, the end parts of the upper layer plates of the adjacent stiffening composite beam plates are ribbed, and the lap joint pieces are lapped on the end parts of the adjacent upper layer plates; And filling the post-pouring groove when the prefabricated part is integrally cast-in-situ.
15. The construction method according to claim 11, wherein: when the stiffening composite beam plate group is installed, the end parts of the stiffening panels adjacent to the stiffening composite beam plate are closely spliced, and the lap joint pieces are spanned and arranged at the splicing seams between the end parts of the stiffening panels; And covering the lap joint part when integrally cast-in-situ forming the prefabricated part.
16. Use of a stiffened composite beam panel according to any one of claims 1 to 4, wherein the stiffened composite beam panel is applied to a floor or slab.

Description

Stiffening composite beam plate, stiffening composite beam plate group, laminated beam plate structure, construction method and application thereof Technical Field The invention belongs to the field of assembly type buildings, and particularly relates to a stiffening composite beam plate, a stiffening composite beam plate group, a superposed beam plate structure, a construction method and application thereof. Background The single T-shaped plate is a large-sized prestressed concrete prefabricated member, and is named as an English letter T in the cross section shape. It typically has one wide flange (stiffening panel) and one tall, narrow web (stiffening rib). By means of the efficient structural form, the column-free space span of 12 meters to 30 meters or more can be realized, and the column-free space span is far superior to that of the traditional double-T plate or hollow floor slab. The web has a large height and strong bending and shearing resistance. Compared with solid concrete slab, the concrete consumption is reduced in the form of section, and the dead weight is relatively light. As a large-scale prefabricated part, the on-site installation speed is high, and the construction period can be remarkably shortened. However, in the prior art, the thickness of the single T-shaped plate cantilever plate is too thin, generally only 50mm thick, and the single T-shaped plate cantilever plate is easy to deform and crack, and has no building functions of heat preservation, sound insulation and the like. 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 composite beam plate which is not easy to crack and has heat preservation and sound insulation properties; The invention aims at providing a composite beam plate group which is not easy to crack and has the heat insulation and sound insulation properties; the third purpose of the invention is to provide a beam slab structure consisting of composite beam slabs; The fourth purpose of the invention is to push the composite beam plate which is not easy to crack and has the heat insulation and sound insulation properties to the application in the field of assembled buildings; In order to achieve the above object, the present invention provides a stiffening composite beam plate, comprising a stiffening rib beam and a stiffening panel, wherein the stiffening rib beam is formed below the stiffening panel, the stiffening panel at least comprises a prefabricated part and a cast-in-situ part, the prefabricated part comprises a lower layer plate, an upper layer plate, a thermal insulation and sound insulation layer and a shear-resistant connecting key, the lower layer plate and the stiffening rib beam are integrally formed, the thermal insulation and sound insulation layer is located between the upper layer plate and the lower layer plate, the shear-resistant connecting key penetrates through the thermal insulation and sound insulation layer, two ends of the shear-resistant connecting key are respectively tied to the upper layer plate and the lower layer plate, and the cast-in-situ part is located on the upper layer plate. Preferably, the shear connection key is a steel pipe. Preferably, at least one of the shear connectors is located at the stiffener, and the bottom of the shear connector is connected to the stiffener. Preferably, the plurality of shear connection keys are arranged along the beam length direction of the stiffening rib beam, the bottoms of the shear connection keys are connected with the stiffening rib beam reinforcement cage of the stiffening rib beam, and the structural ribs of the stiffening panel penetrate through the shear connection keys. The technical effects produced by the technical scheme of the invention are from one or more of the following combinations: The panel of the traditional single T plate is a single concrete thin plate, and the bending rigidity is insufficient in the overhanging state, so that the panel is easy to deform and crack. The stiffening panel is designed into a composite structure of a prefabricated sandwich panel (a lower layer plate, a heat-insulating sound-insulating layer, an upper layer plate and a cast-in-situ layer). The shear-resistant connecting keys (such as steel pipes) penetrate through the heat insulation layer and draw the upper precast slab and the lower precast slab, so that the three layers form an integral common stress, the rigidity and the integrity of the stiffening panel are greatly improved, and the deflection and the crack development of the overhanging end are effectively inhibited. If the bottom of the shear key is connected with