CN217782887U

CN217782887U - Oblique roofing concrete placement space rack steel bar structure

Info

Publication number: CN217782887U
Application number: CN202221830180.2U
Authority: CN
Inventors: 姜琪圆; 韩金良; 张森亮; 刁宏图; 黄胜
Original assignee: CCCC Fourth Highway Engineering Co Ltd
Current assignee: CCCC Fourth Highway Engineering Co Ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2022-11-11
Anticipated expiration: 2032-07-15

Abstract

The utility model discloses an oblique roofing concrete placement space rack steel bar structure, set up the truss muscle choked flow device that a plurality of levels between face reinforcing bar net and the bottom of the slab reinforcing bar net set up including face reinforcing bar net, bottom of the plate reinforcing bar net and level, truss muscle choked flow device includes that the level is space triangle distribution' S frame muscle, S type choked flow reinforcing bar and protection cushion reinforcing bar, the frame muscle includes the top reinforcing bar and divides the bottom reinforcing bar of locating both sides bottom, S type choked flow reinforcing bar top down do not with top reinforcing bar and bottom reinforcing bar welded fastening, protection cushion reinforcing bar vertical welding is fixed in the bottom both sides of bottom reinforcing bar, face reinforcing bar net is fixed to be set up in top reinforcing bar upper portion, the fixed upper portion that sets up in the bottom reinforcing bar of the plate bottom reinforcing bar net, the utility model discloses effectively solved oblique roofing concrete compactness difficult problem difficult to control, effectively controlled oblique roofing structure plate thickness and roughness.

Description

Oblique roofing concrete placement space rack steel bar structure

Technical Field

The utility model relates to a construction technical field, concretely relates to oblique roofing concrete placement space rack steel bar structure.

Background

The concrete is easy to flow, slide and separate in the vibrating process, so that the concrete can be naturally formed only on the slope surface in a sliding state without restriction. The tamping property of concrete is difficult to control, the construction quality is difficult to achieve the expected effect, and the common fault of leakage hidden trouble is left for the construction of a concrete structure.

For the construction of a horizontal structure plate, the flatness and the plate thickness of a cast-in-place concrete plate can not be effectively controlled through an infrared level gauge in the cast-in-place of the oblique roof plate, so that the section size and the appearance quality of the oblique roof plate are influenced, and the thickness and the flatness of the concrete roof plate are difficult to control.

In the single-sided formwork method, people usually use an artificial compaction method to pour the inclined roof concrete. The method is commonly used, but concrete cannot be vibrated effectively to be dense, the compactness of the concrete is difficult to control, and the conditions of pitted surface, honeycomb and exposed ribs are easy to occur after the template is removed, so that common quality problems such as roof leakage and the like are caused. The flatness of the inclined plate concrete is controlled by depending on the height of the skill of a technical worker, and the impression quality is difficult to ensure.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, the inclined roof concrete pouring space net rack steel bar structure is provided, the difficult problem that the concrete compactness of the inclined roof is difficult to control is effectively solved, and the thickness and the flatness of the inclined roof structure plate are effectively controlled.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides an oblique roofing concrete placement space rack steel bar structure, set up the truss muscle choked flow device of a plurality of levels settings between face reinforcing bar net and the slab bottom reinforcing bar net including face reinforcing bar net, slab bottom reinforcing bar net and level, truss muscle choked flow device includes that the level is space triangle distribution' S frame muscle, S type resistance to flow reinforcing bar and protection cushion reinforcing bar, the frame muscle includes the top reinforcing bar and divides the bottom reinforcing bar of locating both sides bottom, S type resistance to flow reinforcing bar about the summit respectively with top reinforcing bar and bottom steel bar welded fastening, protection cushion reinforcing bar vertical welding is fixed in the bottom both sides of bottom reinforcing bar, face reinforcing bar net is fixed to be set up in top reinforcing bar upper portion, the slab bottom reinforcing bar net is fixed to be set up in the upper portion of bottom reinforcing bar.

Furthermore, the S-shaped flow-resistant reinforcing steel bars are symmetrically arranged on two sides of the top reinforcing steel bar, and web bars horizontal to the top reinforcing steel bar are arranged in the middle of the S-shaped flow-resistant reinforcing steel bars.

Furthermore, the plate surface reinforcing mesh and the plate bottom reinforcing mesh are formed by crisscross binding of warps and wefts.

Furthermore, the connection of the plate surface reinforcing mesh and the top reinforcing bar and the connection of the plate bottom reinforcing mesh and the bottom reinforcing bar adopt one of bundling or welding.

Furthermore, the surface of the steel bar of the protective cushion block is provided with an antirust coating.

Furthermore, still including an elevation device, the elevation device includes a plurality of guide rail support bars of welded fastening on the steel bar mesh at the bottom of the plate and the guide rail reinforcing bar of welded fastening on guide rail support bar top.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

the utility model provides a pair of oblique roofing concrete placement space rack steel bar structure, can effectively improve the closely knit degree of concrete at the concrete placement in-process through two reinforcing bar nets that set up truss muscle choked flow device and distribute from top to bottom, can prevent effectively that the concrete from falling gliding phenomenon along the slope direction that the in-process appears pouring, can prevent and treat that the sloping roof panel appears pitted skin and seepage phenomenon, can the roughness on the surface of the cast-in-place board of effective control, through setting up elevation device can the cast-in-place board thickness of effective control, the straightness at face negative and positive angle and the impression quality of cast-in-place board also can be controlled simultaneously.

Drawings

Fig. 1 is a schematic side view of the present invention.

Fig. 2 is a bird's-eye view of the present invention.

1-plate surface reinforcing mesh; 2-plate bottom reinforcing mesh; 3-truss rib flow blocking devices; 4-elevation device; 31-frame ribs; 32-S type flow-resistant reinforcing steel bars; 33-protecting the cushion block steel bars; 34-abdominal muscle; 41-guide rail supporting steel bars; 42-guide rail steel bars; 311-top rebar; 312-bottom rebar.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1 and 2, an inclined roof concrete pouring space net rack steel bar structure includes a face steel bar net 1, a slab bottom steel bar net 2 and a truss bar flow blocking device 3 horizontally arranged between the face steel bar net 1 and the slab bottom steel bar net 2, the truss bar flow blocking device 3 includes a frame bar 31, an S-shaped flow blocking steel bar 32 and a protection cushion block steel bar 33 horizontally distributed in a space triangle, the frame bar 31 includes a top steel bar 311 and a bottom steel bar 312 respectively arranged at the bottoms of the two sides, the upper and lower vertexes of the S-shaped flow blocking steel bar 32 are welded and fixed with the top steel bar 311 and the bottom steel bar 312 respectively, the protection cushion block steel bar 33 is welded and fixed at the two sides of the bottom steel bar 312 vertically, the face steel bar net 1 is fixed on the upper portion of the top steel bar 311, and the slab bottom steel bar net 2 is fixed on the upper portion of the bottom steel bar 312.

The S-shaped flow-blocking steel bars 32 are positioned on two sides of the top steel bar 311 and are symmetrically arranged, the middle part of the S-shaped flow-blocking steel bar 32 is provided with the web ribs 34 which are horizontal to the top steel bar 311, and the web ribs 34 mainly play a role in strengthening and blocking flow and improve the structural rigidity of the truss rib flow-blocking device 3; the plate surface reinforcing mesh 1 and the plate bottom reinforcing mesh 2 are formed by crisscross binding of longitude and latitude; the connection of the plate surface reinforcing mesh 1 and the top reinforcing steel bars 311 and the connection of the plate bottom reinforcing mesh 2 and the bottom reinforcing steel bars 312 adopt one of bundling or welding; the surface of the protective cushion block steel bar 33 is provided with an antirust coating; still including an elevation device 4, elevation device 4 is including a plurality of guide rail support bars 41 of welded fastening on board end reinforcing bar net 2 and welded fastening in the guide rail reinforcing bar 42 at guide rail support bar 41 top.

The utility model provides an oblique roofing concrete placement space rack steel bar structure, when specifically using, at first at oblique roofing formwork erection, clear up the template surface, utilize the ink marker to bounce truss muscle choked flow device 3 mounted position and slab bottom reinforcing bar net distribution spacing line on the template, truss muscle choked flow device 3 generally adopts 300mm equidistant distribution, truss muscle choked flow device 3 generally arranges, the longer condition of length, to each truss muscle choked flow device 3 butt joint and through docking reinforcing bar ligature realization extension, behind template surface installation slab bottom reinforcing bar net 2 and truss muscle choked flow device 3, with slab bottom reinforcing bar net 2 and truss muscle choked flow device 3 spot welding or full tie fixed, at last directly tie up at the top of truss muscle choked flow device 3 face reinforcing bar net 1 again, wherein the space of slab bottom reinforcing bar net 1 and slab bottom reinforcing bar net 2 is confirmed according to the user demand, truss muscle choked flow device 3 possesses the effect of horse muscle simultaneously at this moment, when pouring the bench concrete placement, the concrete can't be concentrated and stacked, should be stratified, the symmetry; protective measures should be taken below the operation layer; when concrete is poured, people cannot stand below the support, slope type layered vibration is adopted for concrete vibration, the vibration is fast inserted and slowly lifted, the bottom layer of a pouring layer is gradually lifted upwards to ensure the construction quality between layered concretes, the vibration time is preferably 20-30s (the concrete surface does not have air bubbles and mortar is discharged) each time, the inclined roof concrete pouring is performed from the eave to the ridge from the lower part, the ridge line at the highest position is used as a symmetry axis, the two sides are symmetrically and alternately poured (the pouring width is about 2 meters), and the interval time is less than the initial setting time of the concrete (within 3 hours). In the concrete pouring process, the inclined roof engineering belongs to a key position, and special personnel should be arranged to frequently observe the conditions of the template, the support, the reinforcing steel bars and the like, and when deformation and movement are found, corresponding measures should be taken in time for treatment. Because the roof is an inclined roof and the concrete is difficult to form, the concrete slump is required to be 100-120mm, the concrete is cast and formed in two layers, the first layer is cast in a first step from bottom to top, the concrete is vibrated while being cast at each step, and the concrete presents a step shape under the flow resistance action of the truss rib flow resistance device; the second layer of concrete is poured before the first layer of ladder-shaped concrete is initially set, the same one-level pouring is carried out from bottom to top, the pouring and the vibrating are carried out at the same time, and after the second layer of concrete is poured, the concrete forms a stable slope surface state on a slope, and the phenomenon of falling down can not occur. The truss rib flow blocking device has a good flow blocking effect on the inclined roof concrete, and the effect of compacting the concrete after the concrete is molded by tamping is guaranteed.

It is worth mentioning that this device still relates to elevation device 4, and elevation device 4 is installed before concrete placement, and concrete measurement elevation personnel accomplish the measurement again, surveys out the concrete completion face elevation of each negative and positive angular position and position department in the board to come the elevation of sign concrete completion face with guide rail reinforcing bar 42 under the cooperation of bar worker, guide rail support bar 41 fixes on the board bottom reinforcing bar net 2 that has banded. And (3) welding the guide rail steel bars 42 at the positions of the internal corners and the external corners according to the marked elevation of the guide rail support steel bars 41, and then welding the guide rail steel bars 42 at the positions in the slabs, wherein the elevation of the upper surfaces of the guide rail steel bars 42 is the elevation of the finished surface of the concrete slab.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. The utility model provides an oblique roofing concrete placement space rack steel bar structure which characterized in that: including face reinforcing bar net (1), board end reinforcing bar net (2) and level set up truss muscle choked flow device (3) that a plurality of levels between face reinforcing bar net (1) and board end reinforcing bar net (2) set up, truss muscle choked flow device (3) are frame muscle (31), S type choked flow reinforcing bar (32) and protection cushion reinforcing bar (33) that space triangle distributes including the level, frame muscle (31) include top reinforcing bar (311) and divide bottom reinforcing bar (312) of locating the both sides bottom, S type choked flow reinforcing bar (32) are from top to bottom the summit respectively with top reinforcing bar (311) and bottom reinforcing bar (312) welded fastening, protection cushion (33) vertical welding is fixed in the bottom both sides of bottom reinforcing bar (312), face reinforcing bar net (1) are fixed to be set up in top reinforcing bar (311) upper portion, board end reinforcing bar net (2) are fixed to be set up in the upper portion of bottom reinforcing bar (312).

2. The pitched roof concrete pouring space grid reinforced structure according to claim 1, wherein: the S-shaped flow-resistant steel bars (32) are located on two sides of the top steel bar (311) and are symmetrically arranged, and the middle of each S-shaped flow-resistant steel bar (32) is provided with a web rib (34) which is horizontal to the top steel bar (311).

3. The pitched roof concrete pouring space grid reinforced structure according to claim 1, wherein: the plate surface reinforcing mesh (1) and the plate bottom reinforcing mesh (2) are formed by crisscross binding of longitude and latitude crosses.

4. The pitched roof concrete pouring space grid reinforced structure according to claim 3, wherein: the connection of the plate-surface reinforcing mesh (1) and the top reinforcing bar (311) and the connection of the plate-bottom reinforcing mesh (2) and the bottom reinforcing bar (312) adopt one of bundling and welding.

5. The pitched roof concrete pouring space grid reinforced structure according to claim 1, wherein: and an antirust coating is arranged on the surface of the protective cushion block steel bar (33).

6. The sloping roof concrete pouring space grid steel bar structure according to claim 1, is characterized in that: still including an elevation device (4), elevation device (4) are including welded fastening in a plurality of guide rail support bar (41) on board end reinforcing bar net (2) and welded fastening in guide rail reinforcing bar (42) at guide rail support bar (41) top.