CN219732870U - Existing building reinforcing and reforming structure capable of keeping exterior wall texture - Google Patents
Existing building reinforcing and reforming structure capable of keeping exterior wall texture Download PDFInfo
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- CN219732870U CN219732870U CN202320548594.4U CN202320548594U CN219732870U CN 219732870 U CN219732870 U CN 219732870U CN 202320548594 U CN202320548594 U CN 202320548594U CN 219732870 U CN219732870 U CN 219732870U
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 57
- 238000002407 reforming Methods 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 60
- 239000010959 steel Substances 0.000 claims abstract description 60
- 239000004567 concrete Substances 0.000 claims abstract description 37
- 238000005553 drilling Methods 0.000 claims abstract description 17
- 239000011449 brick Substances 0.000 claims abstract description 16
- 238000004321 preservation Methods 0.000 claims abstract description 15
- 230000002787 reinforcement Effects 0.000 claims abstract description 10
- 239000004568 cement Substances 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 5
- 230000009466 transformation Effects 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims 2
- 239000010410 layer Substances 0.000 description 34
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 12
- 238000010276 construction Methods 0.000 description 5
- 239000004570 mortar (masonry) Substances 0.000 description 5
- 238000004873 anchoring Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000004816 latex Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- Working Measures On Existing Buildindgs (AREA)
Abstract
The utility model discloses an existing building reinforcing and reforming structure capable of retaining the texture of an outer wall, relates to the technical field of building engineering, solves the problem that the existing building wall and floor slab are easy to damage in structural stability of the existing building wall and floor slab, retains the texture of the outer wall and ensures the structural stability of the existing building wall and floor slab, and adopts the following specific scheme: including the concrete reinforcement layer, the concrete reinforcement layer passes through the inboard fixed connection of bar mat with existing wall body, and the bar mat passes through the tie bar to be fixed in the inboard of existing wall body, in the drilling of brick seam department was implanted to tie bar one end, the other end and bar mat fixed connection are in the same place, the side fixed mounting of concrete reinforcement layer has the heat preservation decorative layer, the bottom and the building foundation fixed connection of bar mat are in the same place, and angle steel and floor fixed connection are passed through at the top of bar mat.
Description
Technical Field
The utility model relates to the technical field of constructional engineering, in particular to an existing building reinforcing and reforming structure capable of retaining the texture of an outer wall.
Background
Under the big background of urban updating, existing building transformation is more and more, especially history building transformation, most of single-layer and multi-layer brick-concrete structures, and the building elevation style and the building material texture often have higher protection value, but the self structure can not meet new function use and specification requirements due to over-long age. In the history building reconstruction, the building reconstruction technology which not only keeps the effect of the original building outer wall, but also meets the requirements of structure safety and energy conservation is urgently needed.
The inventor finds that the existing reinforcing structure (for example, publication number CN 207934487U) for the single-sided wall body with the existing structure can be reinforced at one side of the wall body to realize the protection of the external wall texture, but when the anchor tie bars and the reinforcing mesh are installed, a large number of holes are required to be drilled on the wall bricks, the floor slabs and the like of the existing building, so that the structural stability and the bearing capacity of the wall body and the floor slabs of the existing building are greatly reduced.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide the existing building reinforcing and reforming structure for retaining the texture of the outer wall, the inner side of the existing wall is reinforced, the texture of the outer wall is retained, the drilled holes are arranged at brick joints, the brick body is not damaged, the reinforcing steel bar net is fixedly connected with the floor slab through angle steel, the number of the drilled holes of the floor slab is reduced, and the problem that the existing building wall and the structural stability of the floor slab are easy to damage in the existing wall reinforcing structure is solved.
In order to achieve the above object, the present utility model is realized by the following technical scheme:
the embodiment of the utility model provides an existing building reinforcing and reforming structure capable of retaining the texture of an outer wall, which comprises a concrete reinforcing layer, wherein the concrete reinforcing layer is fixedly connected with the inner side of an existing wall through a reinforcing mesh, the reinforcing mesh is fixed on the inner side of the existing wall through a tie bar, one end of the tie bar is implanted into a drill hole at a brick joint, the other end of the tie bar is fixedly connected with the reinforcing mesh, a heat-insulating decorative layer is fixedly arranged on the side surface of the concrete reinforcing layer, the bottom of the reinforcing mesh is fixedly connected with a building foundation, and the top of the reinforcing mesh is fixedly connected with a floor slab through angle steel.
As a further implementation mode, the drilling hole is filled with cement slurry or micro-expansion vibration-free grouting material.
As a further implementation manner, two ends of the drawknot tendon are bent hook-shaped.
As a further implementation manner, a set distance is arranged between the reinforcing mesh and the inner side surface of the existing wall body.
As a further implementation manner, the drill holes are staggered in a quincuncial shape.
As a further implementation mode, the angle steel is fixedly connected with the floor slab through adhesion or bolts.
As a further implementation mode, the bottom of the concrete reinforcing layer is fixedly connected with the building foundation, and the side face of the concrete reinforcing layer is fixedly connected with the floor.
As a further implementation manner, two ends of the transverse steel bars on the steel bar net are fixedly connected with the transverse steel bars on the steel bar net corresponding to other adjacent existing walls.
As a further implementation mode, the heat-insulating decorative layer is formed by assembling a plurality of heat-insulating decorative integrated plates, and the heat-insulating decorative integrated plates are fixedly connected with the concrete reinforcing layer through fixed connectors.
As a further implementation mode, the bottom of the heat-preservation decorative layer is contacted with the floor, the top of the heat-preservation decorative layer is fixedly connected with the floor through angle steel, and the heat-preservation device layer is fixed with the angle steel by adopting a bolt mode.
The beneficial effects of the utility model are as follows:
1) The utility model reinforces the inner side of the existing wall body, reserves the texture of the outer wall, and the drilled holes are arranged at the brick joints without damaging the brick body, the reinforcing steel bar net is fixedly connected with the floor slab through the angle steel, so that the number of the drilled holes of the floor slab is reduced, and the structural stability of the existing building wall body and the floor slab is effectively ensured.
2) The cement slurry or the micro-expansion vibration-free grouting material is filled in the drilling holes, so that brick joints and the drilling holes can be filled again, the stability of the existing wall structure is effectively ensured, and the damage to the existing wall caused by the concrete vibration process is avoided.
3) The two ends of the tie bar are bent, so that the connection firmness between the tie bar and the filling material and the reinforcing mesh in the drilled hole is greatly improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a schematic view of a partially enlarged construction of an existing building reinforcing retrofit structure retaining exterior wall texture in accordance with one or more embodiments of the present utility model;
FIG. 2 is an enlarged schematic view of the structure at the position A shown in FIG. 1;
FIG. 3 is a schematic illustration of the overall structure of an existing building reinforcing retrofit structure retaining exterior wall texture in accordance with one or more embodiments of the present utility model;
FIG. 4 is an enlarged schematic view of the structure at the position B shown in FIG. 3;
fig. 5 is a schematic structural view of a rebar mesh according to one or more embodiments of the utility model;
in the figure: the mutual spacing or size is exaggerated for showing the positions of all parts, and the schematic drawings are used only for illustration;
1, an existing wall body; 2. a concrete reinforcing layer; 3. a thermal insulation decorative layer; 4. a tie bar; 5. longitudinal steel bars; 6. transverse steel bars; 7. a cement nail; 8. a thermal insulation board fixing piece; 9. angle steel; 10. cement slurry; 11. a floor; 12. and (3) floor slabs.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
As described in the background art, the existing reinforcing structure for the single-sided wall body with the existing structure can be reinforced at one side of the wall body to realize the protection of the external wall texture, but when the anchor lacing wires and the reinforcing steel bar net are installed, a large number of holes are required to be drilled on wall bricks, floors and the like of the existing building, so that the problems of structural stability and bearing capacity of the wall body and the floors of the existing building are greatly reduced.
Example 1
In a typical embodiment of the present utility model, as shown in fig. 1-5, an existing building reinforcing and reforming structure for retaining the texture of an outer wall is provided, which comprises tie bars 4, a reinforcing mesh, a concrete reinforcing layer 2 and a heat insulation decorative layer 3, wherein the concrete reinforcing layer 2 is fixedly connected with the inner side of an existing wall 1 through the reinforcing mesh, the reinforcing mesh is fixed on the inner side of the existing wall 1 through the tie bars 4, the tie bars 4 are provided with a plurality of, one end of each tie bar 4 is implanted into a drilling hole at a brick joint, and the other end of each tie bar 4 is fixedly connected with the reinforcing mesh through a welding mode; the heat preservation decorative layer 3 is fixedly arranged on the outer side of the concrete reinforcing layer 2 through a fixed connecting piece and is attached to the outer side of the concrete reinforcing layer 2.
The concrete reinforcing layer 2 is a high-flow concrete or vibration-free concrete structure, so as to prevent the existing wall 1 from being damaged in the concrete vibration process.
Specifically, a drilling hole for installing the tie bar 4 is formed in a brick joint of the existing wall body 1, one end of the tie bar 4 is implanted into the drilling hole and fixed by using cement slurry 10, the drilling hole cannot damage bricks of the existing wall body 1, and meanwhile, the cement slurry 10 can fill the brick joint and the drilling hole again, so that the stability of the structure of the existing wall body 1 is effectively ensured.
The steel bar net consists of a plurality of longitudinal steel bars 5 and transverse steel bars 6, one ends of the steel bar net, which extend out of the drilled holes, of the tie bars 4 are fixedly connected together, the steel bar net is parallel to the existing wall body 1, the clear distance between the steel bar net and the inner side surface of the existing wall body 1 is more than or equal to 5mm, and the thickness of the protective layer on the surface of the steel bar net is more than or equal to 10mm.
As shown in fig. 2, the two ends of the tie bar 4 are hook-shaped to increase the connection firmness with the cement slurry 10 and the reinforcing mesh, and the cement slurry 10 in the drilled hole can be replaced by micro-expansion vibration-free grouting material to avoid damage to the existing wall 1 caused by slurry vibration.
The diameter of the drilled holes is larger than that of the tie bars 4, the diameter of the drilled holes and the tie bars 4 are larger than 2mm in the embodiment, and the drilled holes are staggered in a plum blossom shape according to the anchoring interval of 600 mm.
The top of the steel bar net is fixedly connected with an adjacent floor 12 (or a roof bottom plate) through angle steel 9, and the bottom of the steel bar net passes through the indoor floor 11 to be fixedly connected with a building foundation; similarly, the top of the concrete reinforcement layer 2 is fixedly connected with the adjacent floor slab 12, the bottom of the concrete reinforcement layer passes through the floor slab 11 to be fixedly connected with the building foundation, and the floor slab 11 is fixedly connected with the side surface of the concrete reinforcement layer 2.
In this embodiment, the single-layer building is described, and when the multi-layer building is formed, the top and the bottom of each of the two or more layers of reinforcing steel meshes are fixedly connected with the adjacent floor 12 through the angle steel 9.
The angle steel 9 is fixedly connected with the floor 12 in a pasting mode, the reinforcing mesh is fixedly connected with the angle steel 9 in a welding mode (not shown in the figure), in other embodiments, the angle steel 9 can also be fixedly connected with the floor 12 through bolts, and the angle steel can be specifically selected according to actual requirements, so that excessive limitation is not carried out.
The angle steel 9 is convenient to connect between the reinforcing mesh and the floor 12, reduces drilling operation on the floor 12, reduces the influence of drilling on the structural stability of the floor 12, facilitates construction, and reduces construction difficulty.
The two ends of the transverse steel bars 6 are connected with the transverse steel bars 6 on the steel bar net corresponding to other adjacent existing walls 1, and the transverse steel bars 6 can be fixedly connected together in a lap joint binding or welding mode.
It should be noted that when the angle steel 9 is fixed by using the bolts, the bolts should be installed at the brick joints as much as possible so as to reduce the influence of the bolts on the stability of the existing structure.
The heat preservation decorative layer 3 is formed by assembling a plurality of heat preservation decorative integrated plates, the heat preservation decorative integrated plates are fixedly connected with the concrete reinforcing layer 2 through cement nails 7, adjacent heat preservation decorative integrated plates are fixedly connected together through L-shaped heat preservation plate fixing links 8, and the heat preservation plate fixing pieces 8 are fixedly connected with the concrete reinforcing layer 2 through expansion bolts.
The bottom of the heat preservation decorative layer 3 is contacted with the floor 11, the top of the heat preservation decorative layer 3 is fixedly connected with the floor 12 through the angle steel 9, the heat preservation device layer 3 and the angle steel 9 are fixed by adopting a bolt mode, and the angle steel 9 is fixed with the floor 12 and the existing wall 1 by adopting a bolt mode.
The concrete construction process is as follows:
firstly, plastering the inner side of the masonry of the existing wall body 1 is removed, and cleaning is carried out. If the on-site masonry mortar joint is weathered or has low strength, the existing standard requirement is not met, before construction, the mortar joint in the mortar joint is removed to a thickness of not less than 200mm, and mortar not less than M10 is used for pouring the mortar joint after removal;
secondly, arranging the tie bars 4 in a staggered manner according to plum blossom shapes with an anchoring interval of 600mm, as shown in fig. 5, drilling holes in the wall surface, drilling holes at brick joints by using an electric drill, wherein the drilling holes have a diameter which is 2mm larger than that of the steel bars, flushing the holes cleanly by using water after drilling, filling slurry or cement slurry 10 with micro-expansion vibration-free, and inserting the tie bars 4 with a diameter of 8mm after filling;
thirdly, paving a reinforcing steel bar net, wherein the reinforcing steel bar net is fixed on the wall surface in a flat and firm manner, the clear distance between the reinforcing steel bar net and the existing wall body 1 is more than or equal to 5mm, longitudinal reinforcing steel bars 5 are supported by the wall surface and adopting reinforcing steel bar heads, the thickness of a protective layer on the outer surface of the reinforcing steel bar net is more than or equal to 10mm, the reinforcing steel bar net can be bound or welded, and the connection between the reinforcing steel bar net and the tie bars 4 is needed to be welded;
as shown in fig. 5, the longitudinal steel bars 5 of the steel bar network are phi 8-12 mm, the transverse steel bars 6 are phi 6-8 mm, the spacing is 150-200 mm, in order to avoid damaging the floor 12 due to too dense drilling of the floor 12, the two-way anchoring of the L75x5 steel angles 9 of the bolts is adopted to be welded with the steel bars, and the bonding surfaces of the steel angles 9 and the floor 12 and the existing wall 1 are firmly smeared with latex cement;
the two ends of the transverse steel bar 6 are fixedly connected with the wall body through angle steel 9, and the joint surface of the angle steel 9 and the existing wall body 1 are firmly bonded by smearing latex cement.
It will be appreciated that, to further reduce the use of angle steel, the longitudinal bars 5 may be arranged in an equal-area centralized manner (e.g. longitudinal bars phi 8@200, bar area 251 mm) 2 Can be equally replaced by a spacing of 600, the diameter of the steel bar is phi 14, namely phi 14@600, and the equal area is 256mm 2 ) The number of the longitudinal steel bars 5 is reduced, so that the use amount of the angle steel 9 is reduced, and the use amount of bolts is further reduced.
Fourthly, watering and wetting the inner side 1 of the existing wall, spraying a concrete reinforcing layer 2, wherein the strength grade of the concrete is more than or equal to C20, the thickness is 60-100 mm, and high-flow concrete or vibration-free concrete is used as much as possible;
and fifthly, fixedly connecting the heat-insulating and decorating integrated plate with the concrete reinforcing layer 2 by adopting a fixed connecting piece.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a keep existing building reinforcing transformation structure of outer wall texture, its characterized in that, includes the concrete reinforcement layer, the concrete reinforcement layer passes through the inboard fixed connection of reinforcing bar net with existing wall body, and the reinforcing bar net passes through the tie muscle to be fixed in the inboard of existing wall body, in the drilling of brick seam department is planted to tie muscle one end, the other end and reinforcing bar net fixed connection together, the side fixed mounting of concrete reinforcement layer has the heat preservation decorative layer, the bottom and the building foundation fixed connection of reinforcing bar net together, the top of reinforcing bar net passes through angle steel and floor fixed connection.
2. The structure of claim 1, wherein the borehole is filled with cement slurry or micro-expansion vibration-free grouting material.
3. The structure for reinforcing and reforming an existing building with reserved exterior wall texture according to claim 1, wherein both ends of the tie bar are bent hooks.
4. The structure of claim 1, wherein the mesh reinforcement is spaced from the inner side of the existing wall by a predetermined distance.
5. The existing building reinforcing and reforming structure for retaining the texture of an outer wall according to claim 1, wherein the drill holes are staggered in a quincuncial shape.
6. The structure for reinforcing and reforming an existing building with reserved exterior wall texture according to claim 1, wherein the angle steel is fixedly connected with the floor slab by means of adhesion or bolts.
7. The structure of claim 1, wherein the bottom of the concrete reinforcing layer is fixedly connected to the building foundation, and the side of the concrete reinforcing layer is fixedly connected to the floor.
8. The structure of claim 1, wherein two ends of the transverse steel bars on the steel bar net are fixedly connected with the transverse steel bars on the steel bar net corresponding to other adjacent existing walls.
9. The structure for reinforcing and reforming the existing building with the reserved exterior wall texture according to claim 1, wherein the heat-insulating decorative layer is formed by assembling a plurality of heat-insulating decorative integrated plates, and the heat-insulating decorative integrated plates are fixedly connected with the concrete reinforcing layer through fixed connecting pieces.
10. The structure for reinforcing and reforming the existing building with the reserved exterior wall texture according to claim 1, wherein the bottom of the heat-insulating decorative layer is in contact with the floor, the top of the heat-insulating decorative layer is fixedly connected with the floor through angle steel, and the heat-insulating device layer is fixed with the angle steel in a bolt mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320548594.4U CN219732870U (en) | 2023-03-16 | 2023-03-16 | Existing building reinforcing and reforming structure capable of keeping exterior wall texture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320548594.4U CN219732870U (en) | 2023-03-16 | 2023-03-16 | Existing building reinforcing and reforming structure capable of keeping exterior wall texture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219732870U true CN219732870U (en) | 2023-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320548594.4U Active CN219732870U (en) | 2023-03-16 | 2023-03-16 | Existing building reinforcing and reforming structure capable of keeping exterior wall texture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219732870U (en) |
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2023
- 2023-03-16 CN CN202320548594.4U patent/CN219732870U/en active Active
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