CN111173232B - Ground expansion joint structure and construction method thereof - Google Patents
Ground expansion joint structure and construction method thereof Download PDFInfo
- Publication number
- CN111173232B CN111173232B CN202010070321.4A CN202010070321A CN111173232B CN 111173232 B CN111173232 B CN 111173232B CN 202010070321 A CN202010070321 A CN 202010070321A CN 111173232 B CN111173232 B CN 111173232B
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- bottom plate
- expansion
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- 238000010276 construction Methods 0.000 title claims abstract description 21
- 239000002390 adhesive tape Substances 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 17
- 238000011065 in-situ storage Methods 0.000 claims abstract description 10
- 238000004080 punching Methods 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 239000003292 glue Substances 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 64
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
- E04F15/14—Construction of joints, e.g. dividing strips
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
- E04F15/14—Construction of joints, e.g. dividing strips
- E04F15/142—Dividing strips or boundary strips
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Foundations (AREA)
- Building Environments (AREA)
Abstract
The invention provides a ground expansion joint structure, which comprises a fixed bottom plate arranged according to the width of an expansion joint; the fixed bottom plate is fixedly connected with a supporting bone; the upper surface of the fixed bottom plate is provided with double-sided adhesive tape; an expansion strip matched with the expansion joint of the post-pouring layer is arranged on the double-sided adhesive tape, and the bottom of the expansion strip is inserted on the supporting bone and is bonded with the double-sided adhesive tape; foundation bolts are arranged at the design positions of the basic concrete expansion joints, bolt holes are formed in two sides of the fixed bottom plates, the arrangement of the foundation bolts corresponds to the bolt holes of the fixed bottom plates, the fixed bottom plates are fixed on the upper parts of the foundation bolts, and the construction method of the floor heating ground expansion joints is further provided: 1) Punching the base layer concrete, installing foundation bolts, and arranging the heat insulation plate, the heating coil and the embedded bars of the cast-in-situ layer; intercepting a fixed bottom plate according to the width and the length of the expansion joint, and fixedly connecting a supporting bone on the upper side of the central line of the fixed bottom plate; bonding two adhesives on the fixed bottom sheet; the expansion strip is inserted into the bottom of the supporting bone and is bonded with the two-sided adhesive tape; the fixed bottom plate is fixed with the foundation bolts, and the post-pouring layer is poured.
Description
Technical Field
The invention relates to indoor ground with expansion joints in building engineering and terrace structure construction, in particular to a ground expansion joint structure and a construction method.
Background
The ground fracture phenomenon caused by the thermal expansion or the cold contraction of the ground is caused by the temperature fluctuation in four seasons, and the expansion joint is required to be arranged to prevent the deformation of the building. In construction of building ground structures, large-area terraces and roof building construction layers, structural expansion joints are often arranged, the expansion joints are usually cut into required heights by adopting mould battens or polystyrene boards and are temporarily fixed to achieve a segmentation effect, after concrete is poured, certain strength is achieved, after the mould battens or the polystyrene boards are removed, joint filling treatment is carried out, and finally the construction joint setting is completed, so that the design requirement is met.
The expansion joint structure formed by the construction method and the final expansion joint structure has the defects of easy falling, breakage, non-durability, non-compression, poor practicality and the like, and in the use process, the expansion joint structure can cause thermal expansion and contraction of filler and stress circulation along with seasonal temperature circulation, so that the expansion joint structure has poor cohesiveness with concrete, the performance is greatly influenced by temperature, the aging, breakage and falling easily occur, and the failure rate is higher. The construction quality of the expansion joint directly influences the quality of the ground.
Disclosure of Invention
The invention aims to improve the construction quality of the expansion joint and protect the expansion joint structure. The expansion joint filling structure is effectively combined with the cast-in-situ structure, and is not easy to deform.
The invention provides an expansion joint structure for achieving the aim of the invention, which comprises the following specific structures:
The utility model provides a ground expansion joint structure, is applicable to the expansion joint that post-cast layer set up above the basic unit's concrete, still is equipped with heat preservation, heating coil layer between basic unit's concrete and the post-cast layer, sets up embedded bar net piece layer in the post-cast layer, and heating coil layer, its characterized in that is pressed close to embedded bar net piece layer: the expansion joint structure comprises a fixed bottom plate arranged according to the width of the expansion joint; a row of supporting ribs are fixedly connected on the central line of the fixed bottom plate, and each supporting rib is formed by two side supporting columns and supporting ribs folded between the two side supporting columns, and a triangular supporting structure is formed between each supporting rib; the upper surface of the fixed bottom plate and the positions of the supporting bone root feet are provided with two-sided adhesive tapes; an expansion strip matched with the expansion joint of the post-pouring layer is arranged on the double-sided adhesive tape, and the bottom of the expansion strip is inserted on the supporting bone and is bonded with the double-sided adhesive tape; foundation bolts are arranged at the design positions of the base layer concrete expansion joints, bolt holes are formed in two sides of the fixing bottom plates, the arrangement of the foundation bolts corresponds to the bolt holes of the fixing bottom plates, and the fixing bottom plates are fixed on the upper portions of the foundation bolts.
The structure is simple and easy to install, the expansion joint of the protection layer is effectively filled, and the expansion joint structure is well protected.
The following is the preferred scheme of local ground expansion joint structure:
The fixed bottom plate and the foundation bolt are fixed by installing a reverse nut on the upper side and the lower side of the fixed bottom plate.
When the fixed bottom plate has no height requirement relative to the lower layer structure, the fixed bottom plate is fixed through the press cap, one or more rows of protruding teeth are axially arranged on the inner wall of the press cap, and the protruding teeth are in threaded clamping connection with the upper part of the foundation bolt.
The foundation pit is characterized in that a waterproof layer is further arranged on the base layer concrete, waterproof glue is filled in the fixed foundation pit of the foundation bolt, and overflows from the fixed foundation pit to be combined with the upper surface of the waterproof glue into a whole.
The expansion strip is internally provided with a compression resistant spring, the compression resistant spring is composed of short arc pieces and long arc pieces, the short arc pieces and the long arc pieces are arranged in phase, an end point is fixedly connected with the end point, and each group of short arc pieces and the long arc pieces form a single spring and the midpoint of the short arc piece of the single spring.
The expansion strip is rubber or foam.
The invention also provides a construction method of the ground expansion joint, which comprises the following steps:
1) Punching the base concrete, and installing foundation bolts, wherein the foundation bolts are arranged according to the telescopic design positions;
2) Arranging the heat insulation board, the heating coil and the cast-in-situ layer embedded steel bars above the base layer concrete;
2) Intercepting a fixed bottom plate according to the width and the length of the expansion joint, wherein the width of the fixed bottom plate is slightly larger than the design width of the expansion joint, the upper side of the central line of the fixed bottom plate is fixedly connected with a supporting rib, and the supporting rib is uniformly arranged in a row along the length direction of the fixed bottom plate;
3) Firmly bonding a long piece of double-sided adhesive tape on the central line of the fixed bottom sheet;
4) Inserting an expansion strip on a supporting bone, inserting the expansion strip to the bottom to contact with the double-sided adhesive tape and bonding the double-sided adhesive tape, wherein the width of the expansion strip is set to be the design width of an expansion joint, and the thickness of the expansion strip is set to be the set height of the expansion joint;
5) The fixed bottom plate is arranged on the base layer concrete along the designed expansion joint position, the fixed bottom plate assembling bolt holes are sleeved at the tops of the foundation bolts and fall on the embedded bars of the cast-in-situ layer to be fixed, and the tops of the expansion strips are consistent with the design elevation of the cast-in-situ layer;
6) And pouring post-pouring layer concrete.
According to the invention, the manufactured expansion joint filling structure is mounted at the position required by design before the post-pouring layer is poured, the concrete pouring side surface of the post-pouring layer is effectively contacted with the expansion strip, the expansion joint filling structure can be arranged at any place where the expansion joint needs to be arranged, and the expansion joint and the surface layer construction can be ensured to be simultaneously arranged.
Drawings
FIG. 1 is a block diagram of expansion joint filling.
FIG. 2 is an elevation view of the expansion joint filling structure.
FIG. 3 shows an expansion joint filling structure fixing structure.
Fig. 4 is a diagram showing an example of a fixing structure of the fixing base plate.
Fig. 5 shows a press cap fixing structure.
The expansion joint filling structure fixing structure of the second embodiment of fig. 6.
Fig. 7 is a modified expansion strap configuration.
Fig. 8 shows an improved expansion strip internal compression spring structure.
In the figure: the concrete expansion plate comprises a fixed bottom plate 1, supporting bones 2, two-sided adhesive tapes 3, expansion strips 4, foundation bolts 5, nuts 6, foundation concrete 7, an embedded steel bar mesh layer 8, a post-pouring layer 9, a pressing cap 10, protruding teeth 11, a heat preservation layer 12, a heating coil layer 13, a foundation pit 14 and a compression spring 15.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the present invention, the terms "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances. In the description of the present specification, the terms "one embodiment" and the like 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 present invention.
As shown in fig. 3 and 6, the ground expansion joint structure is suitable for expansion joints arranged on the post-cast layer 9 above the base layer concrete 7, an insulation layer 12 and a heating coil layer 13 can be further arranged between the base layer concrete 7 and the post-cast layer 9, an embedded steel bar mesh layer 8 is arranged in the post-cast layer 9, and the embedded steel bar mesh layer 8 is close to the heating coil layer 13.
The expansion joint structure provided by the invention is shown in figures 1-3, and comprises a fixed bottom sheet 1 arranged according to the width of the expansion joint; a row of supporting ribs 2 are fixedly connected on the central line of the fixed bottom plate 1, the supporting ribs 2 are formed by two side supporting columns and supporting ribs folded between the two side supporting columns, and a triangular supporting structure is formed between the supporting ribs; the upper surface of the fixed bottom plate 1 and the positions of the supporting bones 2 feet are provided with double-sided adhesive tape 3; an expansion strip 4 matched with the expansion joint of the post-pouring layer 9 is arranged on the double-faced adhesive tape 3, and the bottom of the expansion strip 4 is inserted on the supporting bone 2 and is bonded with the double-faced adhesive tape 3; foundation bolts 5 are arranged at the expansion joint design position of the base layer concrete 7, bolt holes are formed in two sides of the fixed bottom plate 1, the arrangement of the foundation bolts 5 corresponds to the bolt holes of the fixed bottom plate 1, and the fixed bottom plate 1 is fixed on the upper portion of the foundation bolts 5.
The connecting mode of the fixed bottom plate 1 and the foundation bolts 5 can be that the fixed bottom plate 1 is fixed by installing reverse nuts 6 on the upper side and the lower side; if the fixing bottom plate 1 has no height requirement relative to the lower layer structure (base layer or heating coil layer), for example, the embedded steel bar mesh layer is directly arranged on the heating coil layer 13, and the fixing bottom plate does not require a space relative to the heating pipe, the fixing bottom plate is fixed through the press cap 10, as shown in fig. 4-6, one or more rows of protruding teeth 11 are axially arranged on the inner wall of the press cap 10, and the protruding teeth are in threaded clamping connection with the upper part of the foundation bolt. When the structure is used, the pressing cap 10 is pressed downwards, the fixed bottom sheet 1 is directly pressed on the mesh and the heating pipe, the fixed bottom sheet is compacted and fixed, the protruding teeth 11 are gradually clamped with the threads of the foundation bolts layer by layer, no strong external force is generated, the structure is generally not separated, and the structure is convenient to use.
As shown in fig. 3, the expansion joint of the general terrace construction has no waterproof requirement on the ground, and foundation pits 14 of foundation bolts are directly opened on foundation concrete. If the ground that this expansion joint structure was used possesses and has laid the waterproof layer, still need do waterproof treatment when arranging rag bolt 5, specifically: waterproof glue is filled in the fixed foundation pit of the foundation bolt, overflows from the waterproof glue, and the fixed foundation pit and the upper surface of the waterproof glue are combined into a whole.
As shown in fig. 7 and 8, a further improvement of the present invention: the expansion strip 4 is internally provided with a compression spring 15, the compression spring 15 is composed of short arc pieces and long arc pieces, the short arc pieces and the long arc pieces are arranged in phase, the end points are fixedly connected with the end points, each group of short arc pieces and the long arc pieces are combined to form a single spring, the midpoint of the short arc piece of one single spring is fixedly connected with the midpoint of the long arc piece of the other single spring, and the compression spring comprises 3-5 single springs. When the structure is heated, the compression springs enable the expansion strip 4 body to only expand downwards when the structures on two sides extrude the expansion strip, the combination of the expansion strip and the two-sided adhesive is increased, and the expansion joint cannot be deformed upwards to protrude.
The expansion strip of the invention can be made of rubber materials or foam materials.
The construction method of the floor heating ground expansion joint comprises the following steps:
1) Foundation bolts are arranged on the base layer concrete 7 to fix foundation pits 14, foundation bolts 5 are arranged, and the foundation bolts 5 are arranged according to the design positions of expansion joints;
2) The heat preservation layer 12, the heating coil layer 13 and the embedded bar net sheet 8 above the base concrete 7 are arranged;
3) Intercepting a fixed bottom plate 1 according to the width and the length of the expansion joint, wherein the width of the fixed bottom plate is slightly larger than the design width of the expansion joint, the upper side of the central line of the fixed bottom plate is fixedly connected with a supporting rib 2, and the supporting rib 2 is uniformly arranged in a row along the length direction of the fixed bottom plate 1;
4) Firmly bonding a long piece of double-sided adhesive tape on the central line of the fixed bottom sheet 1;
5) Inserting an expansion strip 4 on the supporting rib 2 until the expansion strip 4 is inserted to the bottom to contact the double-sided adhesive tape and is bonded with the double-sided adhesive tape 3, wherein the width of the expansion strip 4 is set to be the design width of an expansion joint, and the thickness of the expansion strip 4 is set to be the set height of the expansion joint;
6) The fixed bottom plate is arranged on the base layer concrete along the designed expansion joint position, the bolt holes of the fixed bottom plate are sleeved at the tops of the foundation bolts and fall on the embedded bars of the cast-in-situ layer for fixation, and the tops of the expansion strips are consistent with the design elevation of the cast-in-situ layer;
7) And pouring post-pouring layer concrete.
The construction steps of the technical scheme of the invention are further described below in connection with a specific construction example.
The construction method of the floor heating ground expansion joint comprises the following steps:
1) And (3) punching the base layer concrete 7, installing foundation bolts, and setting the foundation bolts according to the telescopic design positions.
2) And the heat preservation layer 12, the heating rib pipe layer and the embedded bar mesh layer 8 above the base concrete 7 are arranged.
3) And cutting out a fixed bottom plate 300mm wide and 1000mm long, vertically welding a 15mm long supporting rib 2 on the middle upper part of the fixed bottom plate, and arranging a row of supporting ribs along the length direction of the fixed bottom plate 1 at a distance of 100 mm.
4) A long piece of double faced adhesive tape 3 is firmly adhered to the middle of the fixed bottom sheet 1.
5) An EVA expansion strip 4 with the thickness of 50mm and the width of 20mm is inserted on a 15mm supporting bone, and the bottom of the expansion strip 4 is bonded with the surface of the double faced adhesive tape 3.
6) The fixed bottom plate 1 is arranged along the designed expansion joint, the bolt holes of the fixed bottom plate are sleeved at the tops of the foundation bolts, then the fixed bottom plate is pressed on the heating coil layer by the pressing cap to be fixed, and the tops of the expansion strips 4 are consistent with the design elevation of the post-pouring layer 9.
7) Pouring post-pouring layer-by-layer concrete.
In the embodiment, the fixing bottom plate is 300mm in use width and is arranged according to the size of the extending joint, and when the fixing bottom plate is arranged, two sides of the fixing bottom plate are partially overlapped with the protective layer steel bars, so that the fixing structure of the floor heating clamp is convenient to use. The fixed bottom sheet 1 has the length of 1000mm, and is arranged according to the length of the expansion joint, and a plurality of fixed bottom sheets with the same width can be combined into the whole length.
In this embodiment, the fixing base 1 may be a steel wire mesh, or may be a steel plate perforated, or may be a transverse steel bar, and the fixing base is used for fixing the expansion strips and the ground structure, so that the concrete formation and the size of the fixing base are not limited. The supporting ribs 2 for fixing the expansion strips 4 are selected according to the thickness of the expansion strips 4 of the expansion joint under construction, the spacing between the supporting ribs 2 is arbitrary, preferably 100mm, the supporting ribs are not limited to the structure shown in the figure, and can also be of other shapes, and the structure is used for providing support for the expansion strips and preventing the expansion strips from inclining, bending and the like due to single-side concrete extrusion during single-side pouring. The double faced adhesive tape 3 may be provided on the fixed upper side, i.e. one side of the fixed supporting bone 2, or on the other side of the supporting bone. The supporting bone and the double-sided adhesive are both components for fixing the expansion strip, so that the expansion strip is firmly fixed. Preventing the expansion strip from floating up.
The fixed bottom sheet and the protective layer steel bar are arranged on the same layer, the expansion strip and the upper concrete protective layer are arranged on the same layer, the expansion strip well supplements the expansion joint, the expansion strip has elasticity, the expansion joint is ensured to stretch when the temperature of the concrete changes, the tolerance of the expansion joint position is enhanced, and the expansion joint is not easy to damage due to heavy pressure and collision.
According to the invention, the manufactured expansion joint filling structure is mounted at the position required by design before the post-pouring layer is poured, the concrete pouring side surface of the post-pouring layer is effectively contacted with the expansion strip, the expansion joint filling structure can be arranged at any place where the expansion joint needs to be arranged, and the expansion joint and the surface layer construction can be ensured to be simultaneously arranged. The construction mode can especially ensure the effective contact between the expansion joint and the ground heating protective layer when being used for heating the ground, and improves the quality of the ground.
Claims (7)
1. The utility model provides a ground expansion joint structure, is applicable to the expansion joint that post-cast layer set up above the basic unit's concrete, still is equipped with heat preservation, heating coil layer between basic unit's concrete and the post-cast layer, sets up embedded bar net piece layer in the post-cast layer, and heating coil layer, its characterized in that is pressed close to embedded bar net piece layer: the expansion joint structure comprises a fixed bottom plate arranged according to the width of the expansion joint; a row of supporting ribs are fixedly connected on the central line of the fixed bottom plate, and each supporting rib is formed by two side supporting columns and supporting ribs folded between the two side supporting columns, and a triangular supporting structure is formed between each supporting rib; the upper surface of the fixed bottom plate and the positions of the supporting bone root feet are provided with two-sided adhesive tapes; an expansion strip matched with the expansion joint of the post-pouring layer is arranged on the double-sided adhesive tape, and the bottom of the expansion strip is inserted on the supporting bone and is bonded with the double-sided adhesive tape; foundation bolts are arranged at the design positions of the base layer concrete expansion joints, bolt holes are formed in two sides of the fixing bottom plates, the arrangement of the foundation bolts corresponds to the bolt holes of the fixing bottom plates, and the fixing bottom plates are fixed on the upper portions of the foundation bolts.
2. The floor expansion joint structure according to claim 1, wherein: the fixed bottom plate and the foundation bolt are fixed by installing a reverse nut on the upper side and the lower side of the fixed bottom plate.
3. The floor expansion joint structure according to claim 1, wherein: when the fixed bottom plate has no height requirement relative to the lower layer structure, the fixed bottom plate is fixed through the press cap, one or more rows of protruding teeth are axially arranged on the inner wall of the press cap, and the protruding teeth are in threaded clamping connection with the upper part of the foundation bolt.
4. The floor expansion joint structure according to claim 1, wherein: the foundation pit is characterized in that a waterproof layer is further arranged on the base layer concrete, waterproof glue is filled in the fixed foundation pit of the foundation bolt, and overflows from the fixed foundation pit to be combined with the upper surface of the waterproof glue into a whole.
5. The floor expansion joint structure according to any one of claims 1-4, characterized in that: the expansion strip is internally provided with a compression resistant spring, the compression resistant spring is composed of short arc pieces and long arc pieces, the short arc pieces and the long arc pieces are arranged in phase, the end points are fixedly connected with the end points, each group of short arc pieces and the long arc pieces are combined to form a single spring, the midpoint of the short arc piece of one single spring is fixedly connected with the midpoint of the long arc piece of the other single spring, and the compression resistant spring comprises 3-5 single springs.
6. The floor expansion joint structure according to claim 5, wherein: the expansion strip is rubber or foam.
7. The construction method of the floor heating ground expansion joint comprises the following steps:
1) Punching the base concrete, and installing foundation bolts, wherein the foundation bolts are arranged according to the telescopic design positions;
2) The heat preservation layer, the heating coil layer and the cast-in-situ layer embedded bars above the base layer concrete are arranged;
3) Intercepting a fixed bottom plate according to the width and the length of the expansion joint, wherein the width of the fixed bottom plate is larger than the design width of the expansion joint, the upper side of the central line of the fixed bottom plate is fixedly connected with a supporting rib, and the supporting rib is uniformly arranged in a row along the length direction of the fixed bottom plate;
4) Firmly bonding a long piece of double-sided adhesive tape on the central line of the fixed bottom sheet;
5) Inserting an expansion strip on a supporting bone, inserting the expansion strip to the bottom to contact with the double-sided adhesive tape and bonding the double-sided adhesive tape, wherein the width of the expansion strip is set to be the design width of an expansion joint, and the thickness of the expansion strip is set to be the set height of the expansion joint;
6) The fixed bottom plates are arranged along the designed expansion joint positions, the fixed bottom plate assembly bolt holes are sleeved at the tops of the foundation bolts and fall on embedded bars of the cast-in-situ layer to be fixed, and the tops of the expansion strips are consistent with the design elevation of the cast-in-situ layer;
7) And pouring post-pouring layer concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010070321.4A CN111173232B (en) | 2020-01-21 | 2020-01-21 | Ground expansion joint structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010070321.4A CN111173232B (en) | 2020-01-21 | 2020-01-21 | Ground expansion joint structure and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111173232A CN111173232A (en) | 2020-05-19 |
| CN111173232B true CN111173232B (en) | 2024-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010070321.4A Active CN111173232B (en) | 2020-01-21 | 2020-01-21 | Ground expansion joint structure and construction method thereof |
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| Country | Link |
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| CN (1) | CN111173232B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846782A (en) * | 2015-05-14 | 2015-08-19 | 吉林省银河水利水电新技术设计有限公司 | Flexible seam sealing method for water of hydraulic concrete expansion joint |
| CN206722316U (en) * | 2017-05-08 | 2017-12-08 | 中冶建工集团有限公司 | A kind of large area floor construction subregion divider mounting structure |
| CN206987279U (en) * | 2017-05-31 | 2018-02-09 | 上海建工七建集团有限公司 | A kind of concrete floor structure |
| CN108457386A (en) * | 2018-01-11 | 2018-08-28 | 中国航空规划设计研究总院有限公司 | A kind of terrace expansion joint structure and its construction method under complicated use environment |
| CN211736200U (en) * | 2020-01-21 | 2020-10-23 | 中国二十二冶集团有限公司 | Ground expansion joint structure |
-
2020
- 2020-01-21 CN CN202010070321.4A patent/CN111173232B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846782A (en) * | 2015-05-14 | 2015-08-19 | 吉林省银河水利水电新技术设计有限公司 | Flexible seam sealing method for water of hydraulic concrete expansion joint |
| CN206722316U (en) * | 2017-05-08 | 2017-12-08 | 中冶建工集团有限公司 | A kind of large area floor construction subregion divider mounting structure |
| CN206987279U (en) * | 2017-05-31 | 2018-02-09 | 上海建工七建集团有限公司 | A kind of concrete floor structure |
| CN108457386A (en) * | 2018-01-11 | 2018-08-28 | 中国航空规划设计研究总院有限公司 | A kind of terrace expansion joint structure and its construction method under complicated use environment |
| CN211736200U (en) * | 2020-01-21 | 2020-10-23 | 中国二十二冶集团有限公司 | Ground expansion joint structure |
Also Published As
| Publication number | Publication date |
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| CN111173232A (en) | 2020-05-19 |
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