CN202627495U - Beam slab late poured band template supporting system - Google Patents

Description

Beam and slab post-cast belt formwork support system

technical field

The utility model relates to a post-casting belt formwork support system for beams and slabs.

Background technique

At present, with the continuous development of society, super-long concrete structures continue to appear in construction projects. In order to solve the settlement differences between the high-rise main body and the skirt room, the shrinkage and deformation of reinforced concrete, and the temperature stress of concrete, according to the requirements of the code, every 30~ A post-casting belt is set at 40m. Since the formwork system at the post-casting zone is strictly prohibited from going back to the top, the traditional construction method supports the entire beam-slab formwork (including the position of the post-casting zone) as a whole or separately within 2 to 3 meters on both sides of the post-casting zone. The support system, other parts of the support system are removed and the support system of the post-casting belt is retained, so as to ensure the safety of the structure. Re-cast the post-cast concrete at the specified time, and remove the post-cast formwork after the post-cast concrete pouring meets the form removal requirements. The disadvantage of this method is that there are too many turnover materials on both sides of the post-casting belt, resulting in increased costs; secondly, it is difficult to control the demolition of the formwork, and the control is not strict. The structure is cracked and there are hidden dangers to safety and quality; third, the formwork is supported first, the loose concrete on both sides of the post-pouring belt is not easy to chisel off, and the garbage in the formwork is not cleaned up, resulting in the concrete pouring and tamping at the post-pouring belt. There are hidden dangers of water seepage; fourth, the basement is inconvenient for transportation because the formwork frame at the post-casting belt has not been removed.

Utility model content

The purpose of the utility model is to provide a simple and safe roof support system with a post-casting belt.

The beam-slab post-cast belt formwork support system provided by the utility model includes a main body formwork support body, and it also includes a lattice column support body, and the lattice column support body includes two sets of lattice columns respectively located on both sides of the post-cast belt , each lattice column includes a column formed by vertical bars and horizontal bars connected between the vertical bars, and an adjustable jacking bracket installed on the upper end of the column.

There are four vertical rods, which are respectively located at the vertices of the square, and an adjusting nut with a threaded hole in the middle is arranged at the upper end thereof.

The horizontal bar is connected with the vertical bar through a fastener or a latch.

The adjustable jacking bracket includes a threaded support rod and a U-shaped bracket fixed on the upper end of the threaded support rod, and the thread of the threaded support rod matches the threaded hole on the adjusting nut.

When the utility model sets up the main formwork supporting system on both sides of the post-casting belt, the bottom formwork can be laid as a whole, and the construction speed is accelerated; independent lattice columns are set up on both sides of the post-casting belt, which is convenient for unified setting and overall layout; the post-casting belt After pouring the concrete on both sides and reaching the formwork removal strength, the overall formwork of the main formwork support system can be removed, leaving only the lattice columns, which saves a lot of turnover materials and prevents the basement from supporting formwork due to post-casting Inconvenient transportation of materials due to isolated partitions; after the main body construction, when the post-cast belt needs to be poured, since the bottom formwork at the post-cast belt is not installed, it is easy to remove the rusty quick-easy closing net and loose concrete on both sides of the post-cast belt And the cleaning of garbage, after cleaning, install the bottom formwork at the post-pouring belt, and then pour concrete, which greatly reduces the quality and safety hazards caused by the lack of compactness of the post-casting concrete. As mentioned above, the utility model can save labor costs and material costs, improve the construction quality of buildings, and has obvious economic and social benefits.

Description of drawings

Fig. 1 is a schematic diagram of the facade structure of the preferred embodiment 1 of the present invention.

Fig. 2 is a schematic plan view of the lattice column in Fig. 1 .

Fig. 3 is a schematic diagram of the facade structure of the second preferred embodiment of the utility model.

FIG. 4 is a schematic top view of the structure of FIG. 3 .

Detailed ways

Preferred embodiment one, as shown in Fig. 1 and Fig. 2, the utility model is used for a reinforced concrete slab supporting system without beams and with post-casting strips. The utility model includes a main formwork support body and a lattice column support body. The main formwork support body includes a support frame body A standing on the ground or a floor and a support corrugated system B arranged horizontally on the support frame body A. The support frame body A is The support pole 10 and the horizontal connecting pole 12 are connected by a steel pipe fastener type, a disc buckle type or a bowl buckle type of connection to form a formwork frame system. The top of the support pole 10 has an adjustable jacking 1 to support the System B includes main flute 5 and secondary flute 6, and the secondary flute 6 is evenly arranged perpendicular to the main flute 5. Both the main flute 5 and the secondary flute can be made of wooden squares, square steel or double steel pipes; , lay support corrugated system B on its top, and then lay the bottom formwork 7 of the beam plate on the support corrugated system B, on the bottom formwork located at the longitudinal edge of the post-casting belt, the wooden strips with a thickness of steel bar protective layer thickness × 4cm are stapled 11. One of its functions is to prevent cement from leaking during concrete pouring, and the other is to better connect the old and new concrete surfaces during post-casting concrete pouring, so that there will be no staggered platform. So far, the main formwork support system has been erected.

Each lattice column 13 includes four vertical poles 2, more than 4 horizontal poles, and more than 19 fasteners. The horizontal poles 4 are connected and fixed with the vertical poles 2 through fasteners 19 or buckle pins to form a stable lattice column 13. , the upper end of lattice column 13 has adjustable jacking 1; The thread of the bracket 15 and the threaded support rod 14 match the threaded hole on the adjusting nut 18 . Vertical bar 2 and horizontal bar 4 all adopt steel pipes. According to the layout of the main template support body and the position of the post-casting belt, set up lattice columns 13 on both sides of the post-casting belt, and support each lattice column 13 on the bottom template 7 on both sides of the post-casting belt with uniform spacing. The specific installation process is as follows: the vertical poles 2 are respectively positioned on the vertices of the square, and the horizontal poles 4 are connected and fixed with the vertical poles 2 through fasteners 19 to form a stable lattice column 13. In the U-shaped bracket 15 Place the wooden square 3 that is consistent with the length of the side length of the lattice column, and rotate the adjusting nut 18 to make the wooden square 3 push against the bottom template 7 of the beam slab. After the lattice column 13 is set up and completed, brush red and white warning paint on each lattice column 13 to hang the time limit board for exempting formwork removal.

So far, the construction of the beam-slab support system has been completed. Next, the bottom formwork 7 of the beam slab can be installed, and the entire bottom formwork can be laid on each row of lattice columns on both sides of the post-casting belt, or a formwork with the same size as the lattice column can be laid on each lattice column , the bottom formwork is not installed in the position reserved for the post-casting belt, and the bottom formwork in other positions is laid well. In this way, when the main formwork support body is removed, only the bottom formwork above the lattice column can be left without dismantling, which speeds up the utilization rate of turnover materials.

It is also possible to set up the lattice column while setting up the main formwork support body.

After the main formwork support system and each lattice column have been set up, the concrete 9 on both sides of the post-casting belt can be poured. Before construction, quick-easy closing nets 17 are arranged on both sides of the post-casting belt, and when it meets the requirements of the design and specifications After the strength, the main formwork support system is removed, and the lattice column is retained; after the construction conditions of the post-cast belt 16 are mature, the rusty quick-easy closing net 17 and the uncompacted concrete on both sides of the post-cast belt 16 are removed. The bottom formwork of the pouring belt is not installed, so the two sides of the water-stop steel plate 8 can be cleaned in place, and there will be no construction waste left; For the bottom formwork, the concrete in the post-cast strip is poured, and when it reaches the strength required by the design and specification, the post-cast strip support frame and the lattice columns on both sides are removed.

The construction materials of the above-mentioned supporting body can be purchased or leased finished parts.

Preferred embodiment 2, as shown in Fig. 3 and Fig. 4, the utility model is used in the beam-slab support system of the post-cast belt through which the beam passes. The basic construction steps are the same as the previous embodiment, except that the supporting position of the lattice column is at the end of the pouring belt behind each beam.

Claims (4)

1. A beam-slab post-casting belt formwork support system, comprising a main formwork support body, characterized in that: it also includes a lattice column support body, and the lattice column support body includes two groups of lattice structures respectively positioned at both sides of the post-casting belt Each lattice column includes a column body formed by upright bars and horizontal bars connected between the upright bars, and an adjustable jacking bracket installed on the upper end of the column body. 2. The beam-slab post-casting belt formwork support system according to claim 1, characterized in that there are four vertical poles, which are respectively located on the vertices of the square, and the upper ends of which have adjusting nuts with threaded holes in the middle. 3. The beam-slab post-cast tape formwork support system according to claim 1, characterized in that: said horizontal bar is connected to said vertical bar through a fastener or a disc buckle. 4. The beam-slab post-cast strip formwork support system according to claim 1 or 2, wherein the adjustable jacking bracket includes a threaded support rod and a U-shaped bracket fixed on the upper end of the threaded support rod, and the threaded support rod The threads match the threaded holes on the adjusting nut.

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