CN218375501U

CN218375501U - Structure of encorbelmenting that building external boundary was add

Info

Publication number: CN218375501U
Application number: CN202222240677.5U
Authority: CN
Inventors: 章传胜; 沈伟
Original assignee: Nanjing Yangtze River Urban Architectural Design Co Ltd
Current assignee: Nanjing Yangtze River Urban Architectural Design Co Ltd
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2023-01-24
Anticipated expiration: 2032-08-25

Abstract

The utility model discloses a structure of encorbelmenting that building outer boundary was add, including a plurality of cantilever beams, the cantilever beam includes that upper portion indulges muscle and lower part and indulges the muscle, muscle and lower part are indulged to upper portion and are followed the axial extension of cantilever beam sets up, wherein the interior cantilever beam of first cantilever beam along the roof beam limit of existing floor roof beam through a plurality of first closed stirrups with existing floor Liang Bangding, a plurality of first closed stirrups are followed the even interval in axial of interior cantilever beam sets up, first closed stirrups is formed by C type stirrup and first lacing wire closure, the open end implantation of C type stirrup is bound in the existing floor roof beam, the blind end is located in the first cantilever beam, first lacing wire is located in the first cantilever beam, follow existing floor beam height direction with the open end of C type stirrup combines to form first closed stirrup, upper portion with indulge the lower part and be located in the first closed stirrup. The cantilever structure is bound with the existing boundary structure to bear force integrally, so that the reliability is improved.

Description

Structure of encorbelmenting that building external boundary was add

Technical Field

The utility model relates to a building design field, in particular to structure of encorbelmenting that building outer boundary was add.

Background

The transformation project is additionally provided with overhanging balconies, walkways and the like at the outer boundary of the building according to the requirements of building functions, and overhanging beams are required to be arranged. The upper and lower muscle of indulging of cantilever beam need be planted in existing structure boundary department to traditional concrete cantilever beam to need satisfy sufficient degree of depth, especially the upper portion of cantilever beam is indulged the muscle and is drawn the reinforcing bar, the bar planting degree of depth generally exceeds 20 times of reinforcing bar diameter according to the standard requirement, bring the trouble for the site operation, it is difficult to satisfy the requirement to indulge the muscle bar planting degree of depth under the majority condition, even conditional bar planting, because of the bar planting degree of depth is very big, and the construction factor, the durability etc. of bar planting glue can influence this cantilever beam's service life, thereby influence the safe and reliable degree of this cantilever structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a structure of encorbelmenting that building outer boundary was add to the above-mentioned problem that exists among the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a structure of encorbelmenting that building outer boundary was add, includes a plurality of cantilever beams, the cantilever beam includes that upper portion indulges muscle and lower part and indulges the muscle, muscle and lower part are indulged on upper portion and are followed the axial extension of cantilever beam sets up, wherein the interior cantilever beam of first cantilever beam along the roof beam limit of existing floor roof beam through a plurality of first closed stirrups with existing floor Liang Bangding, a plurality of first closed stirrups are followed the even interval in axial of interior cantilever beam sets up, first closed stirrups is formed by a C type stirrup and a first lacing wire closure, the open end implantation of C type stirrup is bound in the existing floor roof beam, the blind end is located in the first cantilever beam, first lacing wire is located in the first cantilever beam, follow existing floor beam direction of height with the open end of C type stirrup combines to form first closed stirrup, upper portion indulges muscle and lower part and is located in the first closed stirrup.

Furthermore, one part of the inward extending beam of the second cantilever beam is bound with the existing frame column through a plurality of first closed stirrups, and the other part of the inward extending beam of the second cantilever beam is bound with the existing floor through a plurality of second closed stirrups.

Further, the second seals the stirrup and is formed by a U type stirrup and a second lacing wire closure, the open end of U type stirrup is located existing floor layer, the blind end is located in the second cantilever beam, the second lacing wire is located existing floor layer, with the open end of U type stirrup combines to form the second and seals the stirrup, muscle and lower part are indulged to upper portion and are indulged the muscle and be located in the second seals the stirrup.

And further, the upper longitudinal rib and the lower longitudinal rib of the third cantilever beam penetrate through the boundary beam, and the third cantilever beam is bound with the boundary beam through bar planting glue.

Furthermore, a waist rib is arranged between the upper longitudinal rib and the lower longitudinal rib, and the waist rib is hooked by a third lacing wire.

Further, the implantation depth of the C-shaped stirrup in the existing floor beam is 13-15 times of the diameter of the C-shaped stirrup.

Further, the length of the inner extension beam of the cantilever beam is 1/2-2/3 of the span of the cantilever structure.

Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect: the utility model discloses compare with the conventional art, need newly-increased structure of encorbelmenting outside the building boundary, if direct end from existing floor roof beam or existing frame post adopts to indulge the new cantilever beam of building of muscle planting, draws to indulge the influence of muscle planting degree of depth very big, and the construction reliability is low and require high to the durability that the muscle was glued, and the utility model discloses a structure of encorbelmenting adopts and binds along the mode at the edge of existing floor roof beam or existing frame post, can bind whole atress with cantilever beam and existing floor roof beam or existing frame post like this, has avoided only relying on the mode of drawing the muscle planting to the reliability of the structure of encorbelmenting is in order to improve to the extension length in the accessible suitably increases cantilever beam.

Drawings

Fig. 1 is a schematic plan view of the cantilever structure of the present invention.

Fig. 2 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.

Fig. 3 is a sectional view taken along line B-B of fig. 1.

The meaning of the reference symbols in the figures:

1-a first cantilever beam; 2-a second cantilever beam; 3-a third cantilever beam; 4-upper longitudinal ribs; 5-lower longitudinal ribs; 6-existing floor beam; 7-C type stirrup; 8-a first lacing wire; 9-existing frame columns; 10-existing floor slab; 11-U-shaped stirrups; 12-a second lacing wire; 13-edge beam; 14-lumbar muscle; 15-third lacing wire.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Combine fig. 1 and fig. 2, the utility model discloses a structure of encorbelmenting that building outer boundary was add, this structure need be in existing structure boundary department implantation degree of depth enough deep from top to bottom indulge the muscle and lead to the construction inconvenient, durability reliability limited scheduling problem, provide a new structure of encorbelmenting, should encorbelment the structure and include a plurality of cantilever beams, specifically be first cantilever beam 1, second cantilever beam 2 and third cantilever beam 3, first cantilever beam 1, second cantilever beam 2 and third cantilever beam 3 are for meetting the different schemes of encorbelmenting of adopting when different boundary structures, and three kinds of cantilever beams are not limited to one. Every cantilever beam all is provided with upper portion in its inside and indulges muscle 4 and lower part and indulges muscle 5, muscle 4 is indulged on upper portion and the lower part indulges the upper and lower of muscle 5 and is the direction of height of cantilever beam relatively, muscle 4 is indulged on upper portion and the lower part is indulged muscle 5 and is followed the axial extension setting of cantilever beam.

As shown in fig. 2, when the boundary structure encountered by the cantilever structure is the existing floor beam 6, the inner extension beam of the first cantilever beam 1 is bound to the existing floor beam 4 along the beam edge of the existing floor beam 6 through a plurality of first closed stirrups, which are uniformly spaced along the axial direction of the inner extension beam, and preferably, the spacing distance is 100mm. First closed stirrup is formed by a C type stirrup 7 and a first lacing wire 8 closure, the open end implantation of C type stirrup 7 is bound in existing floor beam 6, the blind end is located in first cantilever beam 1, first lacing wire 8 is located in first cantilever beam 1, follow existing floor beam 6's direction of height with the open end combination of C type stirrup 7 forms first closed stirrup, muscle 4 is indulged on upper portion and muscle 5 is indulged to the lower part and is located in the first closed stirrup. The implantation depth of the C-shaped stirrup 7 in the existing floor beam 4 is 13-15 times, preferably 15 times, the diameter of the C-shaped stirrup.

As shown in fig. 3, when the boundary structure encountered by the cantilever structure is the existing frame column 9, the inward extending beam of the second cantilever beam 2 is bound to the existing frame column 9 through a plurality of first closed stirrups with one part adjacent to the existing frame column, and is not bound to the existing floor 10 through a plurality of second closed stirrups with the other part adjacent to the existing frame column 9. The binding structure of the second cantilever beam 2 and the existing frame column 9 is the same as the binding structure of the first cantilever beam 1 and the existing floor beam 6, and the second cantilever beam and the existing frame column are all implanted into the existing structure through the C-shaped stirrup 7 of the first closed stirrup to be bound. Second cantilever beam 2 with existing floor 10 by the second seals the stirrup and binds, the second seals the stirrup and is formed by a U type stirrup 11 and a second lacing wire 12 closure, the open end of U type stirrup 11 is located existing floor 10, the blind end is located in the second cantilever beam 2, second lacing wire 12 is located existing floor 10, with the open end of U type stirrup 11 combines to form the second and seals the stirrup, muscle 4 is indulged on upper portion and muscle 5 is indulged to the lower part and is located in the second seals the stirrup.

Preferably, the length of the inner extending beam of the first cantilever beam 1 and the second cantilever beam 2 is 1/2-2/3, preferably 2/3 of the span of the cantilever structure.

When the boundary structure that the structure of encorbelmenting meets is boundary beam 13, perforate on boundary beam 3 to fill the bar planting and glue in the hole, then indulge muscle 4 with the lower part with the upper portion of third cantilever beam 3 and indulge the perforation that muscle 5 passed boundary beam 13, glue through the bar planting and will third cantilever beam 3 with boundary beam 13 binds.

Preferably, a waist rib 14 is further arranged between the upper longitudinal rib 4 and the lower longitudinal rib 5 of the cantilever beam, the waist rib 14 is hooked by a third lacing wire 15, and the waist rib 14 plays a role in torsion resistance of the cantilever beam and a role in preventing concrete on the side edge of the beam from cracking.

During construction, when meeting existing floor beam, the internal extension beam of first cantilever beam sets up the roof beam wide range, chisels out the existing floor adjacent with existing floor beam, remains the reinforcing bar of existing floor, indulges the muscle and the lower part of first cantilever beam and indulges the muscle from chiseling out the position setting and extend to the building outside, indulges the muscle with upper portion and indulges the muscle stirrup with the lower part with first closed stirrup, and implant existing floor beam, to the reinforcing bar of existing floor and the reinforcing bar of first cantilever beam together pour the concrete, form the binding structure of first cantilever beam and existing floor beam. When meeting existing frame post, in the interior roof beam that stretches out of first cantilever beam sets up the roof beam wide scope, chisel out the existing floor adjacent with existing floor roof beam, remain the reinforcing bar of existing floor, indulge the muscle with the upper portion of first cantilever beam and indulge the muscle with the lower part and follow the setting of chisel out of position and extend to the building outside. The second cantilever beam's interior outrigger with the binding structure of aforementioned first cantilever beam and existing floor roof beam is adopted to the adjacent part of existing frame post, and the second cantilever beam's interior outrigger stretches over can adopt the independent beam cross-section that does not bind behind the existing frame post, and reinforcement convenience when in order to be under construction, the stirrup form in this beam cross-section can adopt the third lacing wire combination mode of U type muscle and back-off, and the bight reinforcing bar of upper portion longitudinal bar is caught on the roof beam simultaneously to the lacing wire of U type muscle and back-off, forms mechanical interlock. When meeting the boundary beam, the existing floor slab does not need to be chiseled, the method is consistent with the prior art, holes are punched on the boundary beam, bar-planting glue is filled, the upper longitudinal bars and the lower longitudinal bars of the third cantilever beam are planted into the holes and penetrate through the holes to reach the new building boundary.

To sum up, the utility model provides a structure of encorbelmenting that building outer boundary was add adopts the cantilever beam structure of three kinds of differences, and place adaptability is stronger, and it is more convenient to be under construction, and durability and safe and reliable are all higher.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing illustrates and describes the general principles, features and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. The utility model provides a structure of encorbelmenting that building outer boundary was add, its characterized in that includes a plurality of cantilever beams, cantilever beam includes that upper portion indulges muscle and lower part and indulges the muscle, muscle and lower part are indulged on upper portion and are followed cantilever beam's axial extension sets up, wherein the interior extension beam of first cantilever beam along the roof beam limit of existing floor roof beam through a plurality of first closed stirrups with existing floor Liang Bangding, a plurality of first closed stirrups are followed the even interval in axial of interior cantilever beam sets up, first closed stirrups is formed by a C type stirrup and a first lacing wire closure, the open end implantation of C type stirrup is bound in the existing floor roof beam, the blind end is located in the first cantilever beam, first lacing wire is located in the first cantilever beam, follow existing floor beam direction of height with the open end of C type stirrup combines to form first closed stirrup, upper portion indulges the muscle and is located in the first closed stirrup.

2. The cantilever structure additionally arranged on the outer boundary of a building as claimed in claim 1, wherein a part of the second cantilever beam is bound with the existing frame column through a plurality of the first closed stirrups, and the other part of the second cantilever beam is bound with the existing floor slab through a plurality of the second closed stirrups.

3. The cantilever structure additionally arranged on the outer boundary of a building as claimed in claim 2, wherein the second closed stirrup is formed by closing a U-shaped stirrup and a second tie bar, the open end of the U-shaped stirrup is located in the existing floor layer, the closed end of the U-shaped stirrup is located in the second cantilever beam, the second tie bar is located in the existing floor layer, the second tie bar and the open end of the U-shaped stirrup are combined to form the second closed stirrup, and the upper longitudinal bar and the lower longitudinal bar are located in the second closed stirrup.

4. The cantilever structure additionally arranged on the outer boundary of a building as claimed in claim 1, wherein the upper longitudinal bar and the lower longitudinal bar of the third cantilever beam penetrate through the boundary beam, and the third cantilever beam is bound with the boundary beam through bar planting glue.

5. The cantilever structure additionally arranged on the outer boundary of a building as claimed in claim 1, wherein a lumbar rib is further arranged between the upper longitudinal rib and the lower longitudinal rib, and the lumbar rib is hooked by a third tie bar.

6. The structure of claim 1, wherein the C-shaped stirrup is embedded in the existing floor beam to a depth of 13-15 times the diameter of the C-shaped stirrup.

7. The overhanging structure additionally arranged on the outer boundary of a building as claimed in claim 1, wherein the length of the inner outrigger of the overhanging beam is 1/2-2/3 of the span of the overhanging structure.