CN221001982U - Cantilever support die frame of high-altitude cantilever structure - Google Patents

Abstract

The utility model provides an overhanging formwork support of a high-altitude overhanging structure, which comprises main beams, joint beams, steel pipes, U-shaped anchor rings and a single-row outer scaffold, wherein a plurality of U-shaped anchor rings are embedded in a lower floor slab of a shelter layer, wall penetrating boxes are arranged in lower wall posts of the shelter layer, one ends of the main beams are fixed on the lower floor slab of the shelter layer through the U-shaped anchor rings, the other ends of the main beams penetrate through the wall penetrating boxes in the lower wall posts of the shelter layer and are overhanging out of the lower wall posts of the shelter layer, the plurality of joint beams are fixed on the main beams through the U-shaped anchor rings at intervals, 2 steel pipes are arranged at one end part of the main beam fixed on the lower floor slab of the shelter layer and are propped back against the upper floor slab of the shelter layer, and the single-row outer scaffold is arranged on the main beams and the joint beams and is connected with the steel pipes through fasteners. The utility model has the advantages of high safety, neatness, beautiful appearance, good integrity and low cost.

Description

Cantilever support die frame of high-altitude cantilever structure

Technical Field

The utility model relates to the technical field of building construction, in particular to an overhanging formwork of a high-altitude overhanging structure.

Background

For a residence with the height of the urban building being more than 100m and a public building with the height of the building being more than 100m, a refuge layer is required to be arranged, the construction of the overhanging structure at the refuge layer part is generally carried out by adopting a section steel overhanging formwork and an overhanging anti-smashing shed, namely, a layer of overhanging anti-smashing layer is arranged below the section steel overhanging formwork. The existing overhanging formwork of the refuge layer has the problems of complex construction method, poor protection and high construction cost.

Disclosure of utility model

In order to overcome the problems in the prior art, the cantilever formwork with the high-altitude cantilever structure is provided, is built by single-layer I-steel, can be used as the cantilever formwork required by construction of a refuge layer, and has the advantages of simple construction, suitability for residential projects, neatness, attractiveness and good overall effect.

The utility model provides a refuge layer cantilever formwork support, includes girder, yoke, steel pipe, U type anchor ring and single outer scaffold frame, a plurality of U type anchor ring is pre-buried on refuge layer lower floor, sets up the wall hole box in the refuge layer lower floor wall post, and a plurality of girder one end is fixed in on the refuge layer lower floor through U type anchor ring, and the girder other end passes when the wall hole box cantilever in the layer wall post outside the wall post, a plurality of the yoke is fixed in on the girder through U type anchor ring interval, is fixed in the girder one end part of refuge layer lower floor and sets up 2 steel pipes and push back in refuge layer upper floor, single outer scaffold frame sets up on girder and yoke, is connected through the fastener with the steel pipe.

Further, single outer scaffold frame includes pole setting and waist pole, welded fastening is first location reinforcing bar on the girder other end, even interval welded fastening is a plurality of second location reinforcing bars on the yoke, and outer end pole setting is fixed in on the first location reinforcing bar, and other pole settings are fixed in on the second location reinforcing bar, many the even interval arrangement of waist pole is in the pole setting, passes through fastener fixed connection with many pole settings.

Further, be fixed in on the refuge floor lower floor the girder one end part welded fastening 2 third reinforcing bars, on the fixed strand third reinforcing bar of steel pipe one end, the steel pipe other end sets up the U-shaped jacking, the U-shaped jacking laminating is to refuge floor upper floor, sets up the flitch in the U-shaped jacking, the third reinforcing bar is phi 20 reinforcing bars.

Further, still include wire rope and draw the support to one side, wire rope draws the support to one side and includes many wire ropes, every set up 2 wire ropes on the girder, set up anti-skidding reinforcing bar below the girder other end, pre-buried wire rope wears the wall entrance to a cave on the lower floor of shelter wall post, wire rope one end is fixed in on the anti-skidding reinforcing bar, and the wire rope other end passes wire rope and wears the wall entrance to a cave to be fixed in the lower floor of shelter wall post, the anti-skidding reinforcing bar is phi 20 anti-skidding reinforcing bar.

Further, the main beams and the yoke beams are I-steel, and the first positioning steel bars and the second positioning steel bars are phi 20 steel bars.

The second technical scheme provided by the invention is as follows:

a construction method of a cantilever formwork of a shelter layer comprises the following steps:

Step 1), the cantilever formwork comprises a main beam and a yoke, and the main beam and the yoke are reasonably selected according to actual working conditions;

Step 2) when the main body structure is constructed on the lower floor slab of the shelter layer, transporting the main beam, the yoke beam and the embedded anchor ring into a building, positioning according to a design scheme, embedding the anchor ring on the lower floor slab of the shelter layer, and embedding a wall through hole box and a steel wire rope wall through hole when the main body structure is constructed on the wall column of the shelter layer;

Step 3) erecting a cantilever beam formwork, wherein one end of a plurality of girders is fixed on a lower floor slab of a shelter layer through pre-buried anchor rings, the other end of the girders passes through a wall hole box, the cantilever beam is arranged outside a layer wall column, a plurality of girders and the girders are vertically and horizontally arranged, the girders are placed on the girders at intervals, and the girders are fixed on the girders through pre-buried anchor rings;

Step 4) building an outer protective single-row outer scaffold, wherein the scaffold comprises upright posts and waist bars, the upright posts are fixed on the yoke beams, the intervals between the upright posts are equal to the intervals between the yoke beams, the waist bars are arranged on the upright posts, and the upright posts are connected with the waist bars through fasteners;

And 5) arranging 2 steel pipes on the end parts of the lower floor plates of the refuge layer, which are fixed on each main beam through the embedded anchor rings, back-pushing the main beams to the upper floor tops of the refuge layer, and connecting the steel pipes with the waist rod extension parts through fasteners to finish the construction of the overhanging formwork of the refuge layer.

Further, in step 1), the girder and the yoke are all i-steel, and according to actual conditions, a reasonable type of i-steel girder and i-steel yoke are selected, a first positioning steel bar is welded at one end of the i-steel girder, an anti-slip steel bar is welded below one end of the i-steel girder, a plurality of second positioning steel bars are welded on the i-steel yoke at intervals, and the anti-slip steel bar is phi 20 steel bar anti-slip steel bar.

Further, in the step 3), the steel wire rope is supported in a diagonal manner, one end of the steel wire rope is fixed on an anti-slip steel bar on each girder, the other end of the steel wire rope penetrates through a steel wire rope wall penetrating hole to be pre-buried and fixed in a wall column, 2 steel wire rope diagonal supports are arranged on each girder, a bamboo springboard is paved on the girder and the yoke for hard sealing, and a safety net is arranged below a cantilever part of the girder.

Further, in step 4), the single-row outer scaffold is supported on the first positioning steel bars at one end of the i-steel girder at the outer end of the cantilever part of the cantilever support frame, the other vertical bars are respectively fixed on a plurality of second positioning steel bars welded on the i-steel girder at intervals, and the first positioning steel bars and the second positioning steel bars are phi 20 steel bars.

The invention has the beneficial effects that:

(1) The steel cantilever formwork support technology adopts a mode of pulling two steel wire ropes to draw and supporting and a steel pipe anti-jacking measure, adopts a bamboo springboard to carry out hard sealing on I-steel, and hangs a safety net, thereby being safe and reliable;

(2) Compared with the traditional steel cantilever formwork frame, the technology adopts single-layer I-steel erection, meets the requirements of construction and smash-proof and protective requirements of a cantilever structure of a refuge layer, is more convenient to construct and is beneficial to cost control;

(3) The construction method of the I-steel cantilever formwork frame is simple to operate and suitable for residential projects;

(4) The I-steel cantilever formwork is neat and attractive after being erected, is safe and has good civilized image and good overall effect.

Drawings

FIG. 1 is a cross-sectional view of a cantilever formwork of a high-altitude cantilever structure of the present utility model;

FIG. 2 is a schematic illustration of the connection of a cantilever formwork main beam and a yoke beam of the high-altitude cantilever structure of the utility model;

FIG. 3 is a schematic diagram showing connection between a central beam and a vertical rod of an overhanging formwork of a high-altitude overhanging structure;

fig. 4 is a cross-sectional view of a main beam of an overhanging formwork of a high-altitude overhanging structure, which is fixed on a lower floor of a shelter layer.

Symbol description in the drawings:

1. the main beam, the yoke, the steel tube, the 4.U anchor rings, the lower floor slab of the refuge layer and the lower wall column of the refuge layer

7. The refuge layer upper floor slab, 8, upright posts, 9, waist posts, 10, U-shaped jacking, 11, steel wire ropes, 12, and a safety net

13. Second locating steel bar, 14. First locating steel bar, 15. Anti-slip steel bar.

Detailed Description

In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and detailed description.

Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present invention and simplifying the description, rather than indicating or implying that the apparatus or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and should not be construed as limiting the present patent, and that the specific meaning of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances.

In the description of this patent, unless explicitly stated and limited otherwise, the term "coupled" or the like should be interpreted broadly, as referring to the connection between components, for example, either fixedly, detachably, or integrally; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between the two parts or interaction relationship between the two parts. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The utility model discloses an overhanging formwork of a high-altitude overhanging structure, which is shown in fig. 1 to 4 and comprises a main beam 1, a yoke 2, steel pipes 3, U-shaped anchor rings 4 and a single-row outer scaffold, wherein a plurality of U-shaped anchor rings 4 are embedded in a lower floor slab 5 of a shelter layer, wall penetrating boxes are arranged in lower wall posts 6 of the shelter layer, one end of the main beam 1 is fixed on the lower floor slab 5 of the shelter layer through the U-shaped anchor rings 4, the other end of the main beam 1 penetrates through the wall penetrating boxes in the lower wall posts 6 of the shelter layer and overhangs the lower wall posts 6 of the shelter layer, the yoke 2 is fixed on the main beam 1 at intervals through the U-shaped anchor rings 4, one end part of the main beam 1 fixed on the lower floor slab 5 of the shelter layer is provided with 2 steel pipes 3 which are propped back against the upper floor slab 7 of the shelter layer, and the single-row outer scaffold is arranged on the main beam 1 and the yoke 2 through fasteners and 3. In the technical scheme, the cantilever beam formwork is formed by vertically and horizontally overlapping and fixing the main beam 1 and the yoke beam 2 through the pre-buried U-shaped anchor ring 4. The structural forms of the main beam 1 and the yoke beam 2 increase the bearing capacity of the cantilever beam formwork, so that the I-steel cantilever beam of one layer can meet the formwork requirement of the refuge layer. And, set up the steel pipe 3 of returning to the top at girder 1 to refuge floor lower floor 5 end, prevented the perk problem of girder stiff end. The single-row outer scaffold structure is added, and the safety of the cantilever beam scaffold in the technical scheme is improved.

Further, as shown in fig. 1 to 4, the single-row outer scaffold comprises upright rods 8 and waist rods 9, the other ends of the main beams 1 are welded and fixed with first positioning steel bars 14, the connecting beams 2 are uniformly welded and fixed with a plurality of second positioning steel bars 13 at intervals, the upright rods 8 at the outermost ends are fixed on the first positioning steel bars 14, the other upright rods 8 are fixed on the second positioning steel bars 13, and a plurality of waist rods 9 are uniformly arranged on the upright rods at intervals and fixedly connected with a plurality of upright rods 8 through fasteners. In this embodiment, the structure of the single row outer scaffold is specifically defined. Further, the main beams 1 and the yoke beams 2 are i-beams, and the first positioning steel bars 14 and the second positioning steel bars 13 are phi 20 steel bars. In this embodiment, phi 20 steel bars are selected for the first positioning steel bars 14 and the second positioning steel bars 13.

Further, as shown in fig. 1 to 4, 2 third steel bars are welded and fixed at one end of the main beam 1 fixed on the lower floor slab of the shelter layer, one end of the steel tube 3 is fixed on the third steel bar, the other end of the steel tube 3 is provided with a U-shaped jacking 10, the U-shaped jacking is attached to the upper floor slab 7 of the shelter layer, a batten is arranged in the U-shaped jacking, and the third steel bars are phi 20 steel bars. In the present embodiment, the structure of the steel pipe 3 for the return roof is specifically defined. The lifting problem that the girder 1 is fixed at the end of the lower floor 5 of the refuge layer is solved by the back top of the steel pipe 3.

Further, as shown in fig. 1 to 4, the anti-slip steel wire rope support device further comprises an anti-slip steel wire rope support, the anti-slip steel wire rope support device comprises a plurality of steel wire ropes 11, each of the anti-slip steel wire rope support devices is provided with 2 steel wire ropes 11 on the main beam 1, anti-slip steel bars 15 are arranged below the other end of the main beam 1, pre-buried steel wire rope through-wall holes are formed in the lower wall column 6 of the shelter layer, one ends of the steel wire ropes 11 are fixed on the anti-slip steel bars, the other ends of the steel wire ropes 11 penetrate through the steel wire rope through-wall holes and are fixed in the lower wall column 6 of the shelter layer, and the anti-slip steel bars are phi 20 anti-slip steel bars. In this embodiment, the structure of the cable-stayed support for the wire rope is specifically defined. The steel wire rope diagonal support has the main function of sharing bearing capacity during pouring construction of the refuge layer.

Further, as shown in fig. 1 to 4, the main beams 1 and the yoke beams 2 are paved with bamboo springboards, and a safety net 12 is arranged below the overhanging parts of the main beams. The arrangement of the bamboo springboard and the safety net bag 12 is further to increase the safety performance of the cantilever beam formwork of the shelter layer.

The utility model relates to a construction method of a cantilever formwork of a high-altitude cantilever structure on a shelter layer cantilever formwork, which comprises the following steps of

A cantilever formwork construction method of a high-altitude cantilever structure comprises the following steps:

Step 1), the cantilever formwork comprises a main beam and a yoke, and the main beam and the yoke are reasonably selected according to actual working conditions;

Step 2) when the main body structure is constructed on the lower floor slab of the shelter layer, transporting the main beam, the yoke beam and the embedded anchor ring into a building, positioning according to a design scheme, embedding the anchor ring on the lower floor slab of the shelter layer, and embedding a wall through hole box and a steel wire rope wall through hole when the main body structure is constructed on the wall column of the shelter layer;

Step 3) erecting a cantilever beam formwork, wherein one end of a plurality of girders is fixed on a lower floor slab of a shelter layer through pre-buried anchor rings, the other end of the girders passes through a wall hole box, the cantilever beam is arranged outside a layer wall column, a plurality of girders and the girders are vertically and horizontally arranged, the girders are placed on the girders at intervals, and the girders are fixed on the girders through pre-buried anchor rings;

Step 4) building an outer protective single-row outer scaffold, wherein the scaffold comprises upright posts and waist bars, the upright posts are fixed on the yoke beams, the intervals between the upright posts are equal to the intervals between the yoke beams, the waist bars are arranged on the upright posts, and the upright posts are connected with the waist bars through fasteners;

And 5) arranging 2 steel pipes on the end parts of the lower floor plates of the refuge layer, which are fixed on each main beam through the embedded anchor rings, back-pushing the main beams to the upper floor tops of the refuge layer, and connecting the steel pipes with the waist rod extension parts through fasteners to finish the construction of the overhanging formwork of the refuge layer.

In high-rise buildings exceeding 100 meters, refuge floors must be built. Building the refuge layer requires building cantilever beam formwork, and building the conventional cantilever beam formwork of the refuge layer is building two layers of cantilever beam formwork. The invention can meet the later pouring requirement of the refuge layer by only building the I-steel cantilever beam support frame, and the bamboo springboard is paved on the I-steel cantilever beam support frame for hard sealing, and the safety pocket net is arranged below the cantilever beam part, so that the safety construction is ensured, and meanwhile, the building and dismantling are convenient, and the material and measure cost is reduced. The invention aims at solving the problem that one end of a main beam fixed on a lower floor slab of a shelter layer is easy to be stressed and tilted in the construction process of an overhanging beam formwork. According to the invention, the steel pipe back-roof is arranged at the end of the main beam fixed on the lower floor slab of the refuge layer, so that the problem of tilting of the fixed end of the main beam is solved. The construction method of the invention has the advantages of neat and beautiful built refuge layer overhanging beam formwork support, high completeness and good overall effect.

Further, in step 1), the girder and the yoke are all i-steel, and according to actual conditions, a reasonable type of i-steel girder and i-steel yoke are selected, a first positioning steel bar is welded at one end of the i-steel girder, an anti-slip steel bar is welded below one end of the i-steel girder, a plurality of second positioning steel bars are welded on the i-steel yoke at intervals, and the anti-slip steel bar is phi 20 steel bar anti-slip steel bar. In this embodiment, the main beam and the yoke are both i-beams, and the i-beam main beam and the i-beam yoke with appropriate types are selected according to actual working conditions. Selecting a model, preparing for later construction, welding a first positioning steel bar at one end of the I-shaped steel girder, and welding and fixing a protection steel bar below the end. One end of the I-shaped steel girder is one end of the cantilever part of the girder. And a plurality of second positioning steel bars are welded on the I-steel yoke beam at equal intervals.

Further, in the step 3), the steel wire rope is supported in a diagonal manner, one end of the steel wire rope is fixed on an anti-slip steel bar on each girder, the other end of the steel wire rope penetrates through a steel wire rope wall penetrating hole to be pre-buried and fixed in a wall column, 2 steel wire rope diagonal supports are arranged on each girder, a bamboo springboard is paved on the girder and the yoke for hard sealing, and a safety net is arranged below a cantilever part of the girder. In the construction method, a steel wire rope diagonal support structure is further added for better safety of construction. The concrete construction method is as above. Compared with the telescopic pipe diagonal support in the prior art, the steel wire rope diagonal support is simple in structure and low in cost, and the same safety performance can be achieved.

Further, in step 4), the single-row outer scaffold is supported on the first positioning steel bars at one end of the i-steel girder at the outer end of the cantilever part of the cantilever support frame, the other vertical bars are respectively fixed on a plurality of second positioning steel bars welded on the i-steel girder at intervals, and the first positioning steel bars and the second positioning steel bars are phi 20 steel bars. The construction method of the single row outer scaffold in step 4) is further defined herein.

It should be understood that the above description is only illustrative of the preferred embodiments of the present application and the technical principles employed. It will be apparent to those skilled in the art that various modifications, equivalents, variations, and the like can be made to the present application. Such variations are intended to be within the scope of the application without departing from the spirit thereof. In addition, some terms used in the description and claims of the present application are not limiting, but are merely for convenience of description.

Claims (6)

1. The utility model provides a cantilever formwork of high altitude cantilever structure, its characterized in that includes girder (1), yoke (2), steel pipe (3), U type anchor ring (4) and single-row outer scaffold, a plurality of U type anchor ring (4) are pre-buried on refuge floor lower floor building board (5), set up the wall hole box in refuge floor lower floor wall post (6), a plurality of girder (1) one end is fixed in on refuge floor lower floor building board (5) through U type anchor ring (4), girder (1) other end passes in refuge floor lower floor wall post (6) through wall hole box cantilever outside refuge floor lower floor wall post (6), a plurality of yoke (2) are fixed in on girder (1) through U type anchor ring (4) interval, and girder (1) one end part that is fixed in refuge floor lower floor building board (5) sets up 2 root (3) and jack-backs in refuge floor upper building board (7), single-row outer scaffold is set up in steel pipe (2) and is connected with the fastener (3) through the yoke.

2. The cantilever formwork support of the high-altitude cantilever structure according to claim 1, wherein the single-row outer scaffold comprises upright rods (8) and waist rods (9), a first positioning steel bar (14) is welded and fixed at the other end of the main beam (1), a plurality of second positioning steel bars (13) are welded and fixed on the yoke (2) at uniform intervals, the upright rods (8) at the outermost end are fixed on the first positioning steel bars (14), the other upright rods (8) are fixed on the second positioning steel bars (13), and a plurality of waist rods (9) are uniformly arranged on the upright rods at intervals and fixedly connected with a plurality of upright rods (8) through fasteners.

3. The cantilever formwork support of the high-altitude cantilever structure according to claim 2, wherein 2 third steel bars are welded and fixed at one end part of the main beam (1) fixed on the lower floor slab of the shelter layer, one end of the steel pipe (3) is fixed on the third steel bars, a U-shaped jacking (10) is arranged at the other end of the steel pipe (3), the U-shaped jacking is attached to the upper floor slab (7) of the shelter layer, a batten is arranged in the U-shaped jacking, and the third steel bars are phi 20 steel bars.

4. The cantilever formwork support of the high-altitude cantilever structure according to claim 3, further comprising a wire rope diagonal support, wherein the wire rope diagonal support comprises a plurality of wire ropes (11), 2 wire ropes (11) are arranged on each main beam (1), anti-slip steel bars (15) are arranged below the other ends of the main beams (1), steel wire rope wall penetrating holes are pre-buried in the lower layer wall posts (6) of the shelter layer, one ends of the wire ropes (11) are fixed on the anti-slip steel bars, the other ends of the wire ropes (11) penetrate through the steel wire rope wall penetrating holes and are fixed in the lower layer wall posts (6) of the shelter layer, and the anti-slip steel bars (15) are phi 20 anti-slip steel bars.

5. The cantilever formwork support of the high-altitude cantilever structure according to claim 4, wherein a bamboo springboard is paved on the main beam (1) and the yoke (2), and a safety net (12) is arranged below the cantilever part of the main beam.

6. The cantilever formwork of the high-altitude cantilever structure according to claim 5, wherein the main beam (1) and the yoke (2) are i-beams, and the first positioning steel bar (14) and the second positioning steel bar (13) are phi 20 steel bars.