CN212427799U

CN212427799U - Integrated reinforcing steel bar formwork-free cast-in-place concrete beam

Info

Publication number: CN212427799U
Application number: CN202021519307.XU
Authority: CN
Inventors: 李伟兴; 徐伟栋; 李盼; 袁世聪
Original assignee: Tianhua Architecture Design Co ltd
Current assignee: Tianhua Architecture Design Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-01-29
Anticipated expiration: 2030-07-28

Abstract

The utility model discloses an integrated reinforcing bar mould-free cast-in-place concrete beam, including U-shaped beam shell, framework of steel reinforcement and drawknot spare, the U-shaped beam shell is including the U-shaped groove that is used for holding the framework of steel reinforcement, the U-shaped groove includes two relative side panels and bottom surface panel, two a side of the side panel is fixed on the bottom surface panel, the framework of steel reinforcement and the U-shaped groove phase-match, so that the framework of steel reinforcement is placed on the bottom surface panel, the framework of steel reinforcement is along being greater than the height of the side panel along being perpendicular to the direction of bottom surface panel along being perpendicular to, and the framework of steel reinforcement is greater than the length of the U-shaped groove along its extending direction along its length, the drawknot spare both ends are fixed respectively on two relative side panels; the cast-in-place concrete beam can avoid four working procedures of 'template, reinforcing steel bar, pipeline and plastering' with low efficiency in field construction in the prior art.

Description

Integrated reinforcing steel bar formwork-free cast-in-place concrete beam

Technical Field

The utility model relates to a construction technical field, in particular to mould cast-in-place concrete roof beam is exempted from to integrated reinforcing bar.

Background

In the traditional cast-in-place concrete structural engineering, the on-site construction efficiency of the panel and the steel bar project is very low, and the daily average output value does not exceed 2300 yuan; the field construction efficiency of the procedures of door and window installation, building block filling wall, external heat preservation, painting and the like is lower, and the daily average output value is not more than 1000 yuan; the on-site construction efficiency of concrete items is very high, and the daily average output value can reach 20000 yuan at most. At present, the building industry in China is entering a stage of greatly promoting building industrialization, but the existing assembly type structure system carries out concrete with high daily average output value in a factory in different items, and most of working procedures such as panels with low output values, reinforcing steel bars, external heat preservation, painting and the like are still left on site, so that the construction period progress is slow, and the construction cost is greatly increased. In addition, after the PC components are adopted, prefabricated component installation project division is added, cross operation is needed in site construction, working procedures are increased, management difficulty is increased, at present, more assembly integral type frame structure systems and assembly integral type frame cast-in-place shear wall structure systems are applied, actual assembly degree is generally low, a large amount of panels, painting, masonry, reinforcing steel bars and other work are still needed on site, and waste materials, pollution, noise, dust raising and quality problems generated by the work are not fundamentally improved due to the adoption of the prefabricated components.

Therefore, there is a need to provide a concrete beam structure system and a related construction method, so that premature intervention of a large amount of concrete in a precast concrete structure in precast beam products in a component factory is effectively avoided during construction, partial or all four procedures of 'formwork, steel bar, pipeline and plastering' which are low in traditional site construction efficiency are completed in a factory at different times, concrete pouring sub-projects and procedures which are high in site construction efficiency are still maintained in site implementation, the advantages of factory production and site pouring can be fully exerted, and the defects of the concrete beam structure system and the site pouring can be avoided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mould cast-in-place concrete roof beam is exempted from to integrated reinforcing bar, when this concrete roof beam is as the building structure roof beam, can avoid the too early intervention of a large amount of concrete in the precast concrete structure in the precast beam product of component factory, with "template that traditional site operation efficiency is low," reinforcing bar, pipeline, plaster "four big process parts or whole different time strange land accomplish in mill, concrete placement branch project and the process that with site operation efficiency high still remain and implement at the scene, can full play batch production and cast-in-place's advantage, can avoid again not enough between them.

In order to achieve the above objects and other related objects, the utility model provides an integrated reinforcing bar exempts from cast-in-place concrete beam of mould at first, a serial communication port, including U-shaped beam shell, framework of steel reinforcement and drawknot spare, the U-shaped beam shell is including being used for the holding framework of steel reinforcement's U-shaped groove, the U-shaped groove includes two relative side panels and bottom surface panel, two a side panel side is fixed on the bottom surface panel, framework of steel reinforcement with U-shaped groove phase-match, so that framework of steel reinforcement places on the bottom surface panel, framework of steel reinforcement is greater than along its extending direction's length the U-shaped groove is along its extending direction's length, drawknot spare both ends are fixed respectively on two relative side panels.

The composite shuttering and the forming reinforcing steel bars adopted by the scheme are prefabricated in a factory, plastering-free component surfaces are realized, and the labor and panel consumption on the site of a construction site are greatly saved, so that the procedures of low mechanization degree, low daily average output value, generation of waste materials, noise, dust raising and more quality problems in construction site construction are changed into the procedures of completing factory production, the cast concrete work procedure with the highest daily average output value on the site is reserved on the site, and the construction quality, efficiency and cost control are maximized by optimizing and modifying the construction flow of the assembled concrete beam; and because when the concrete beam is poured into the hollow shell, strong lateral pressure can be caused to the side panels, the pulling piece is used for generating pulling force between the two side panels, so that the system can automatically bear the lateral pressure when the concrete is poured.

Further, two the side panel is perpendicular to the bottom surface panel, two the distance of the other end of side panel to the bottom surface panel is equal or unequal, and the distance is unequal, and wherein the upper end of a side panel is the same with roof beam elevation. Two side panels parallel and level, then the steel reinforcement framework exceeds the both sides of side panel and exceeds the part equal, during the follow-up construction of being convenient for during the part of exceeding embeds the floor.

Further, the number of the pulling pieces is multiple. In order to improve the force of the two side panels of the drawknot and better resist the lateral pressure generated during pouring, a plurality of drawknot pieces are preferably adopted.

Further, the pulling piece is detachably connected with the side panel. If a tie member with both ends fixed is used, the work of fixing the tie member, such as welding of both sides, after the reinforcing cage is placed may affect or destroy the inner reinforcing cage.

Furthermore, two side panels forming one U-shaped groove are respectively provided with a coaxial split bolt hole, the two coaxial split bolt holes are in a group, the number of the split bolt holes is the same as the number of the pulling pieces, each pulling piece comprises a sleeve, a screw and an outer nut, two ends of each screw penetrate through the two corresponding split bolt holes respectively, the outer nuts in threaded fit with the screws are sleeved between the two ends of each screw and the side panels respectively, and the sleeves are sleeved on the screws between the two opposite side panels. The cooperation of screw rod and nut and through-hole is the cooperation form that a drawknot spare can dismantle in the cooperation often used, has convenient and cheap advantage.

Further, the sleeve is a PVC pipe.

Furthermore, the side face panel and the bottom face panel are reinforced composite cement-based sheets, and the reinforced composite cement-based sheets are reinforced by hot galvanizing electric welding nets and fiber materials in a reinforcing mode. The panel of the composite shuttering is made of reinforced composite cement-based material, has small thickness, can avoid steam curing, reduces panel curing cost and transportation cost, has light weight, and reduces hoisting cost.

Further, the thickness of the side face panel and the bottom face panel is 20-30 mm.

Furthermore, two side panels forming one U-shaped groove are respectively provided with a coaxial hoisting pair perforation, the two coaxial hoisting pair perforations are one group and at least two groups, and the two groups are respectively positioned at two ends of the U-shaped beam shell. The hoisting can be convenient for the perforation.

Drawings

Fig. 1 is a schematic perspective view of an integrated rebar mold-free cast-in-place concrete beam provided by an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of the integrated steel bar mold-free cast-in-place concrete beam provided by an embodiment of the present invention.

Wherein the reference numerals are as follows:

10-U-shaped beam shell, 11-side panel, 12-bottom panel, 13-split bolt hole, 14-hoisting split hole, 20-steel reinforcement framework, 30-pulling piece, 31-screw rod, 32-outer nut, 33-sleeve and 34-reinforcing back ridge.

Detailed Description

The following description of the embodiments of the present invention will be described in more detail with reference to the drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Fig. 1 and fig. 2 are the utility model provides an embodiment of the integrated reinforcing bar exempts from mode cast-in-place concrete beam's that integrated reinforcing bar exempts from mode cast-in-place concrete beam that this embodiment provided includes U-shaped beam shell 10, framework 20 and drawknot piece 30, U-shaped beam shell 10 is including being used for the holding framework 20's U-shaped groove, the U-shaped groove includes two relative side panel 11 and bottom surface panel 12, two 11 sides of side panel are fixed on the bottom surface panel 12, framework 20 with the U-shaped groove phase-match, so that framework 20 places on the bottom surface panel, framework 20 is greater than along its extending direction's length the U-shaped groove is along its extending direction's length, drawknot piece 30 both ends are fixed respectively on two relative side panel 11.

The U-shaped beam shell 10 and the steel reinforcement framework 20 adopted in the embodiment are prefabricated in a factory, plastering-free component surfaces are realized, and the labor and panel consumption on the site of a construction site are greatly saved, so that the procedures of low mechanization degree, low daily average output value, generation of waste materials, noise, dust raising and more quality problems in construction site construction are completed in the factory, the cast concrete work procedure with the highest daily average output value on the site is reserved on the site, and the construction quality, efficiency and cost control are maximized by optimizing and modifying the construction flow of the fabricated concrete beam; and since the side panels 11 are strongly laterally compressed when the concrete beam is cast into the hollow shell, the tie 30 is used to generate a tensile force between the two side panels 11, so that the system can automatically bear the lateral pressure when the concrete beam is cast.

Referring to fig. 2, the tie 30 may include a screw 31, an outer nut 32 and a sleeve 33, wherein coaxial tie bolt holes 13 are formed in two opposite side panels 11, two sets of the tie bolt holes 13 are oppositely arranged, the screw 31 passes through the two opposite sets of the tie bolt holes 13, the screw 31 is sleeved on the outer nut 31 in threaded engagement with the screw on the outer side of the side panel 11, and the outer nut 31 is screwed to the outer side wall of the side panel 11, or as shown in fig. 2, a reinforcing back ridge 34 for temporary reinforcement is added between the outer nut 31 and the side panel 11, for example, the reinforcing back ridge 34 is a box-shaped or aluminum alloy section. Thereby creating a central internal tension to both of the side panels 11 to resist lateral pressure to the side panels 11 when the concrete is poured. Of course, it should be understood by those skilled in the art that the structure for forming the pulling force for the two side panels 11 is not limited to the combination of the screw rod 31 and the outer nut 32, and other pulling members, such as two-end snap keys, that is, two ends of the pulling member are snapped on the side panels 11, or a non-detachable form, that is, two ends of the pulling member are fixed on the two side panels 11. Such detachable form as the engagement of the screw bar 31 and the outer nut 32 is advantageous in that the number and position of the split bolt holes 13 and the combination of the screw bar 31 and the outer nut 32 can be flexibly adjusted according to the structure of the inner-side reinforcing cage 20. If a tie member with both ends fixed is used, the work of fixing the tie member, such as welding of both sides, after the reinforcing cage is placed may affect or destroy the inner reinforcing cage.

In order to increase the tensile force applied to the two side panels 11 and thus better resist the lateral pressure applied to the side panels 11 when the concrete is poured, the combination of the split bolt holes 13 and the threaded rods 31 and the outer nuts 32, i.e., the tie members 30, may be provided in a plurality of pairs and uniformly. The two side panels 11 are generally perpendicular to the bottom panel 12, and the other ends of the two side panels 11 are spaced from the bottom panel 12 by the same distance.

In addition, during installation, collision or other forces may be applied to the U-beam shell 10, such that the two side panels 11 are turned inside out, and a matching sleeve 33 may be placed over the portion of the threaded rod 31 inside the U-beam shell 10, in particular, referring to fig. 2, and the sleeve 33 is placed over the portion of the threaded rod 31 inside the U-shaped groove.

When the integrated reinforced bar model-free cast-in-place concrete beam is specifically installed, the integrated reinforced bar model-free cast-in-place concrete beam needs to be hoisted, for convenience in hoisting, hoisting pair through holes 12 can be formed in the positions, close to the two ends of the U-shaped beam shell 10, of the side face plate 11, and hoisting tools can be inserted into the hoisting pair through holes 12 to hoist the integrated reinforced bar model-free cast-in-place concrete beam. The side panel 11 and the bottom panel 12 are reinforced composite cement-based sheets, which are reinforced by hot-dip galvanized electric welding nets, fiber materials and the like, and have a thickness of 20-30mm, so that the steam curing can be avoided, the panel curing cost and the transportation cost can be reduced, the weight of the component is light, and the hoisting cost can be reduced.

The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.

Claims

1. The utility model provides an integrated reinforcing bar exempts from cast-in-place concrete beam of mould which characterized in that, includes U-shaped beam shell, framework of steel reinforcement and drawknot spare, the U-shaped beam shell is including the U-shaped groove that is used for the holding framework of steel reinforcement, the U-shaped groove includes two relative side panels and bottom surface panel, two a side of side panel is fixed on the bottom surface panel, framework of steel reinforcement with the U-shaped groove phase-match is so that framework of steel reinforcement places on the bottom surface panel, framework of steel reinforcement is greater than along its extending direction's length in the U-shaped groove, drawknot spare both ends are fixed respectively on two relative side panels.

2. The integrated reinforced form-free cast-in-place concrete beam as recited in claim 1, wherein the two side panels are perpendicular to the bottom surface panel, and the other ends of the two side panels are spaced from the bottom surface panel by equal or unequal distances, wherein the upper end of one side panel has the same elevation as the top of the beam.

3. The integrated reinforced form-free cast-in-place concrete beam as claimed in claim 2, wherein the number of the tie members is plural.

4. The integrated reinforced form-free cast-in-place concrete beam as recited in claim 3, wherein the tie member is detachably coupled to the side panels.

5. The cast-in-place concrete beam with integrated steel bars and a mold free according to claim 4, wherein two side panels forming one U-shaped groove are respectively provided with a coaxial split bolt hole, the coaxial two split bolt holes form a group, the number of the split bolt holes is the same as the number of the tie pieces, each tie piece comprises a sleeve, a screw and an outer nut, two ends of the screw respectively penetrate through the two corresponding split bolt holes, the outer nuts in threaded fit with the screw are respectively sleeved between the two ends of the screw and the side panels, and the sleeve is sleeved on the screw between the two opposite side panels.

6. The integrated reinforced form-free cast-in-place concrete beam according to claim 5, wherein a reinforcing back ridge is provided between the outer nut and the side panel.

7. The integrated reinforced form-free cast-in-place concrete beam as recited in claim 6, wherein the reinforcing back ridge is a wood or aluminum alloy box-shaped section.

8. The integrated reinforced mold-free cast-in-place concrete beam according to claim 7, wherein the side panels and the bottom panel are reinforced composite cement-based sheets, and the reinforced composite cement-based sheets are reinforced by hot-dip galvanized electric welding nets and/or fiber materials.

9. The integrated reinforced form-free cast-in-place concrete beam as recited in claim 8, wherein the sleeve is a PVC pipe.

10. The integrated reinforced form-free cast-in-place concrete beam as recited in claim 9, wherein the thickness of the side surface panel and the bottom surface panel is 20-30 mm.