CN212477836U - Flexible connection structure before post-cast strip seals - Google Patents
Flexible connection structure before post-cast strip seals Download PDFInfo
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- CN212477836U CN212477836U CN202021006392.XU CN202021006392U CN212477836U CN 212477836 U CN212477836 U CN 212477836U CN 202021006392 U CN202021006392 U CN 202021006392U CN 212477836 U CN212477836 U CN 212477836U
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Abstract
The utility model discloses a flexible connection structure before post-cast strip seals, include: the post-cast strip and a plurality of steel connecting pieces, a plurality of steel connecting pieces are located the post-cast strip inboard, and steel connecting piece both ends stretch into in the post-cast strip both sides limit concrete perpendicularly respectively, the steel connecting piece is located the middle part between the gluten and the end muscle of lining up of post-cast strip, and is provided with the fixed subassembly of connecting piece between the end muscle of lining up of steel connecting piece both ends and post-cast strip. If the utility model is arranged on the telescopic post-pouring belt, when the concrete on the two sides shrinks, the connecting piece has ductility and can be stretched; the connecting piece is arranged on the post-sedimentation pouring belt, and has certain deformability when the sedimentation of the structures on the two sides is inconsistent; under above two kinds of circumstances, all can not influence the horizontal direction atress ability of steel connecting piece to make the post-cast strip can bear and transmit because of the pressure of foundation ditch backfill, guaranteed the stability of post-cast strip both sides structure.
Description
Technical Field
The utility model belongs to the technical field of the construction, especially, relate to a flexible connection structure before post-cast strip seals.
Background
Basements are built on more and more projects in urban construction, the area of the basements is often large, post-cast strips are needed to be used for separation in the construction process, and concrete cracking is avoided. The settlement post-cast strip needs the main building to be basically finished and closed after settlement is stable, and the telescopic post-cast strip needs the structure to be finished for 60 days. After the underground structure is finished, in order to ensure that the safety of the structure is not influenced by the side pressure of the backfill soil, the post-cast strip is often sealed firstly, and then the foundation pit is backfilled. If the post-cast strip is closed and then backfilling operation is carried out, the site arrangement at the side of the foundation pit is greatly limited, and the construction progress of the ground structure is influenced. And the long-term exposure of the foundation pit also has safety risks. Therefore, sometimes the backfilling operation is required before the post-cast strip closing operation is carried out. However, the foundation pit backfill building is subjected to the side pressure of the backfill soil, and the side pressure cannot be transmitted due to the disconnection of the post-cast strip, so that the stability of the structures on two sides of the post-cast strip is influenced. Therefore, an innovative post-cast strip reinforcing device is needed, which can enable the local structure isolated by the post-cast strip to bear the lateral pressure of the filled soil, thereby accelerating the backfilling of the foundation pit.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a flexible connection structure before post-cast strip seals to solve the foundation ditch backfill building and receive backfill soil pressure and cause the poor stability's of post-cast strip both sides structure technical problem.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a flexible connection structure before a post-cast strip is sealed comprises a post-cast strip and a plurality of steel connecting pieces, wherein the steel connecting pieces are located on the inner side of the post-cast strip, two ends of each steel connecting piece vertically extend into concrete on two side edges of the post-cast strip respectively, the steel connecting pieces are located in the middle of through gluten and through bottom ribs of the post-cast strip, connecting piece fixing components are arranged between two end portions of each steel connecting piece and the through bottom ribs of the post-cast strip, each connecting piece fixing component comprises a split heads, the lower end portions of the split heads are fixedly connected with the through bottom ribs of the post-cast strip through binding wires, angle steel pieces are symmetrically arranged on the front side and the rear side of the upper end of the split heads, limiting plates are welded on the outer end portions of the angle steel pieces, the front angle steel pieces and the rear angle steel pieces are located on the front side edges and the rear side edges of, the port is provided with a plurality of continuous arrangement's protection shutoff apron subassembly on the post-cast strip, protection shutoff apron subassembly includes the template, the long direction of template is parallel with the long direction of post-cast strip, and the template downside is provided with a pair of spacing flitch, four corners of template all are provided with dismantlement formula removal wheel subassembly.
The utility model adopts the above be used for post-cast strip seal preceding flexible connection structure, further: the dismantlement formula removes wheel subassembly and includes the U type fastener of iron, the inboard card of U type fastener goes into the template side, U type fastener upper end middle part welding has the nut, and installs fastening screw on the nut, the symmetrical welding of U type fastener lower extreme left and right sides has the fixed plate of iron, controls two rotate through the pivot between the fixed plate and be connected with the runner.
The utility model adopts the above be used for post-cast strip seal preceding flexible connection structure, further: and the middle part of the top wall of the U-shaped clamping piece is provided with a through hole under the nut corresponding to the fastening screw, and the nut of the fastening screw is welded with a pair of butterfly-shaped rotation-assisting plates.
The utility model adopts the above be used for post-cast strip seal preceding flexible connection structure, further: a plurality of the steel connecting pieces are arranged horizontally at equal intervals, the distance between every two adjacent steel connecting pieces is 500-800 mm, and the steel connecting pieces are formed by cutting I-shaped steel or channel steel.
The utility model adopts the above be used for post-cast strip seal preceding flexible connection structure, further: the front and the rear angle steel pieces are parallel on the horizontal plane, and the middle part of the lower side of each angle steel piece is vertically welded with the upper end of the split heads.
The utility model adopts the above be used for post-cast strip seal preceding flexible connection structure, further: the pair of limiting battens and the post-cast strip are parallel in the length direction, and the distance between the pair of limiting battens is smaller than the width of the inner side of the post-cast strip.
The utility model has the advantages that:
1. if the utility model is arranged on the telescopic post-pouring belt, when the concrete on the two sides shrinks, the connecting piece has ductility and can be stretched; the connecting piece is arranged on the post-sedimentation pouring belt, and has certain deformability when the sedimentation of the structures on the two sides is inconsistent; under above two kinds of circumstances, all can not influence the horizontal direction atress ability of steel connecting piece to make post-cast strip can transmit because of the pressure side of foundation ditch backfill soil, guaranteed the stability of post-cast strip both sides structure.
2. The utility model discloses in the fixed subassembly of connecting piece that sets up, can firmly fix the steel connecting piece, when concreting, can prevent that the steel connecting piece from taking place the displacement and skew settlement position to can the height of accurate control steel connecting piece, thereby guaranteed the firm intensity of post-cast strip shaping back steel connecting piece.
3. The utility model discloses well protection shutoff apron subassembly that sets up can prevent that rubbish from blockking up the post-cast strip, has guaranteed the cleanness in the post-cast strip, has also guaranteed the safe walking of construction operation personnel. And the dismantlement formula that sets up on the protection shutoff apron subassembly removes the wheel subassembly and can be convenient for move heavy protection shutoff apron subassembly on the post-cast strip, has moved a protection shutoff apron subassembly, can remove the dismantlement formula and remove the wheel subassembly and tear open and install on next protection shutoff apron subassembly, can use repeatedly, and the high-usage.
Drawings
The above and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are given by way of illustration only and not by way of limitation, wherein:
FIG. 1 is a schematic cross-sectional view of a flexible connection before closure of a post-cast strip according to an embodiment;
fig. 2 is a schematic top view of a steel connector according to an embodiment of the present invention;
fig. 3 is an enlarged schematic view a of an embodiment of the present invention;
fig. 4 is a schematic side view of a connector fixing assembly according to an embodiment of the present invention;
fig. 5 is a schematic top view of a protective plugging cover plate assembly according to an embodiment of the present invention;
fig. 6 is a schematic front view of a protective plugging cover plate assembly according to an embodiment of the present invention;
fig. 7 is an enlarged schematic view B according to an embodiment of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a steel connector; 2. post-pouring a belt; 21. penetrating gluten; 22. penetrating through the bottom rib; 3. a connector securing assembly; 31. a split heads; 32. an angle steel member; 33. a limiting plate; 34. iron wires; 4. a protective plugging cover plate assembly; 41. a template; 42. limiting battens; 43. a detachable moving wheel assembly; 431. a U-shaped clamping piece; 432. a nut; 433. fastening screws; 434. a butterfly-shaped rotation-assisting plate; 435. a fixing plate; 436. a rotating shaft; 437. a rotating wheel.
Detailed Description
Hereinafter, an embodiment of the post-cast strip before-closure flexible connection configuration of the present invention will be described with reference to the accompanying drawings.
The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof. It should be noted that for the sake of clarity in showing the structures of the various components of the embodiments of the present invention, the drawings are not drawn to the same scale. Like reference numerals are used to denote like parts.
Fig. 1-7 illustrate a post-cast strip pre-closure flexible joint construction according to an embodiment of the present invention, including: the rear pouring belt 2 and the steel connecting pieces 1, the steel connecting pieces 1 are positioned on the inner side of the rear pouring belt 2, two ends of each steel connecting piece 1 vertically extend into concrete on two side edges in the rear pouring belt 2 respectively, the steel connecting pieces 1 are arranged horizontally at equal intervals, the interval between every two adjacent steel connecting pieces 1 is 500-800 mm, the steel connecting pieces 1 are formed by cutting I-shaped steel or channel steel, the steel connecting pieces 1 are positioned in the middle between the through gluten 21 and the through bottom gluten 22 of the rear pouring belt 2, a connecting piece fixing assembly 3 is arranged between two end parts of each steel connecting piece 1 and the through bottom gluten 22 of the rear pouring belt 2, each connecting piece fixing assembly 3 comprises a split heads 31, the lower end part of each split head 31 is fixedly connected with the through bottom gluten 22 of the rear pouring belt 2 through binding wires, angle steel pieces 32 are symmetrically arranged on the front side and rear side of the upper end of the split heads 31, specifically, the front angle steel pieces 32 and, the middle part of the lower side of the angle steel piece 32 is vertically welded with the upper end of the split heads 31, the outer end part of the angle steel piece 32 is welded with a limiting plate 33, the front and the rear angle steel pieces 32 are just positioned at the front and the rear two side edges of the bottom of the steel connecting piece 1, the two angle steel pieces 32 are fixedly connected with the steel connecting piece 1 through a plurality of iron wires 34, the upper port of the post-pouring belt 2 is provided with a plurality of continuously arranged protective sealing cover plate assemblies 4, each protective sealing cover plate assembly 4 comprises a template 41, the length direction of the template 41 is parallel to the length direction of the post-pouring belt 2, the lower side surface of the template 41 is provided with a pair of limiting battens 42, concretely, the pair of limiting battens 42 and the length direction of the post-pouring belt 2 are parallel, the distance between the pair of limiting battens 42 is smaller than the width of the inner side of the post-pouring belt 2, the four corners of the template 41 are all, the nut 432 is welded in the middle of the upper end of the U-shaped clamping piece 431, the fastening screw 433 is installed on the nut 432, specifically, a through hole is formed in the middle of the top wall of the U-shaped clamping piece 431 under the nut 432 and corresponds to the fastening screw 433, a pair of butterfly-shaped rotation assisting plates 434 are welded on the nut of the fastening screw 433, iron fixing plates 435 are symmetrically welded on the left side and the right side of the lower end of the U-shaped clamping piece 431, and a rotating wheel 437 is rotatably connected between the left fixing plate 435 and the right fixing plate 435 through.
The working principle is as follows:
the foundation pit backfill building is subjected to backfill soil pressure, and lateral pressure cannot be transmitted due to the fact that the post-cast strip 2 is disconnected, so that a 'skeleton' structure capable of transmitting the lateral pressure needs to be designed to serve as a connecting piece for connecting two sides of the post-cast strip 2, and the normal functions of a settlement post-cast strip or a telescopic post-cast strip cannot be influenced. According to the requirement that the framework has flexible deformation capacity and can bear and transmit side pressure, the framework is made of the steel material. The specific implementation is as follows: the thickness of the floor slab structure of the underground chamber part is mostly more than 150mm, 10# I-shaped steel or more than appropriate section steel is selected according to the sections of the floor slab and the beam, the side pressure of the filling is calculated and evaluated, and the arrangement intervals of the section steel are reasonably arranged. The materials are arranged in the middle of the post-cast strips before concrete pouring, and after the concrete pouring is finished, the two floor slabs between the post-cast strips are flexibly connected. If the connected steel is arranged on the telescopic post-cast strip, when the concrete on the two sides shrinks, the ductility of the connecting piece can be stretched; the connecting piece is arranged on the post-sedimentation pouring belt, and has certain deformability when the sedimentation of the structures on the two sides is inconsistent; under above two kinds of circumstances, can not influence the horizontal direction atress ability of steel connecting piece.
The utility model discloses a construction steps does:
calculating and determining the size and the arrangement distance of the section steel materials of the steel connecting piece 1 according to the thickness of the floor slab and the lateral pressure of the filled soil; completing installation of a structural floor slab template and binding of structural bottom ribs, and determining the position of the post-cast strip 2 according to a construction drawing; positioning and paying off, positioning the point position of the steel connecting piece 1 at the position of the post-cast strip 2, and installing the steel connecting piece 1; binding structural gluten; mounting a side mold of the post-cast strip 2; pouring concrete to finish the flexible connection structure of the post-pouring belt; laying a protective plugging cover plate assembly 4.
The utility model discloses in the fixed subassembly 3 of connecting piece that sets up, can firmly fix steel connecting piece 1, when concreting, can prevent that steel connecting piece 1 from taking place the displacement and skew settlement position to can accurate control steel connecting piece 1's height, thereby guaranteed 2 shaping back steel connecting piece 1 firm intensity of post-cast strip.
The utility model discloses in the protection shutoff apron subassembly 4 that sets up can prevent that rubbish from blockking up post-cast strip 2, guaranteed the cleanness in the post-cast strip 2, and the dismantlement formula that sets up on the protection shutoff apron subassembly 4 removes the wheel subassembly 43 and can be convenient for move heavy protection shutoff apron subassembly 4 on post-cast strip 2, moving a protection shutoff apron subassembly 4, can remove the wheel subassembly 43 with the dismantlement formula and tear open and install on next protection shutoff apron subassembly 4, can use repeatedly, and the high-usage.
The technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the invention to achieve the aim of the invention.
Claims (6)
1. The utility model provides a flexible connection structure before post-cast strip seals which characterized in that includes: the rear pouring belt (2) and the steel connecting pieces (1), the steel connecting pieces (1) are located on the inner side of the rear pouring belt (2), the two ends of each steel connecting piece (1) respectively and vertically extend into concrete on the two side edges in the rear pouring belt (2), the steel connecting pieces (1) are located in the middle of the rear pouring belt (2) between the through gluten (21) and the through bottom gluten (22), connecting piece fixing components (3) are arranged between the two end portions of each steel connecting piece (1) and the through bottom gluten (22) of the rear pouring belt (2), each connecting piece fixing component (3) comprises a split heads (31), the lower end portions of the split heads (31) are fixedly connected with the through bottom gluten (22) of the rear pouring belt (2) through binding wires, angle steel pieces (32) are symmetrically arranged on the front side and the rear side of the upper end of the split heads (31), limiting plates (33) are welded on the angle steel pieces (32), and the front and rear two angle steel pieces (32) are just located on the two side edges of the bottom of the rear, and two angle steel spare (32) are through multichannel iron wire (34) and steel connecting piece (1) fixed connection, post-cast strip (2) upper port is provided with a plurality of continuous arrangement's protection shutoff apron subassembly (4), protection shutoff apron subassembly (4) are including template (41), template (41) long direction is parallel with post-cast strip (2) long direction, and template (41) downside is provided with a pair of spacing flitch (42), four corners of template (41) all are provided with dismantlement formula and remove wheel subassembly (43).
2. The flexible connection structure before post-cast strip closure according to claim 1, characterized in that the detachable moving wheel assembly (43) comprises an iron U-shaped clamping piece (431), the inner side of the U-shaped clamping piece (431) is clamped into the side of the template (41), a nut (432) is welded in the middle of the upper end of the U-shaped clamping piece (431), a fastening screw (433) is installed on the nut (432), iron fixing plates (435) are symmetrically welded on the left side and the right side of the lower end of the U-shaped clamping piece (431), and a rotating wheel (437) is rotatably connected between the left fixing plate and the right fixing plate (435) through a rotating shaft (436).
3. The flexible connection structure before post-cast strip closure according to claim 2, characterized in that a through hole is formed in the middle of the top wall of the U-shaped clamping piece (431) under the nut (432) and corresponding to the fastening screw (433), and a pair of butterfly-shaped rotation-assisting plates (434) are welded on the nut of the fastening screw (433).
4. The flexible connection structure before the post-cast strip is closed according to claim 1, characterized in that a plurality of the steel connectors (1) are horizontally arranged at equal intervals, the distance between two adjacent steel connectors (1) is 500mm-800mm, and the steel connectors (1) are cut by I-steel or channel steel.
5. A flexible post-cast strip closed front connection structure as claimed in claim 1, wherein the two angle steel members (32) are parallel on the horizontal plane, and the middle part of the lower side of the angle steel member (32) is vertically welded with the upper end of the split heads (31).
6. The flexible connection structure before the post-cast strip is closed according to claim 1, characterized in that a pair of the limiting battens (42) is parallel to the length direction of the post-cast strip (2), and the distance between the pair of the limiting battens (42) is smaller than the width of the inner side of the post-cast strip (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021006392.XU CN212477836U (en) | 2020-06-04 | 2020-06-04 | Flexible connection structure before post-cast strip seals |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021006392.XU CN212477836U (en) | 2020-06-04 | 2020-06-04 | Flexible connection structure before post-cast strip seals |
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| Publication Number | Publication Date |
|---|---|
| CN212477836U true CN212477836U (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021006392.XU Active CN212477836U (en) | 2020-06-04 | 2020-06-04 | Flexible connection structure before post-cast strip seals |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324214A (en) * | 2022-07-28 | 2022-11-11 | 中国建筑第五工程局有限公司 | Pre-sealing structure of post-cast strip subsides |
-
2020
- 2020-06-04 CN CN202021006392.XU patent/CN212477836U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324214A (en) * | 2022-07-28 | 2022-11-11 | 中国建筑第五工程局有限公司 | Pre-sealing structure of post-cast strip subsides |
| CN115324214B (en) * | 2022-07-28 | 2024-01-26 | 中国建筑第五工程局有限公司 | Sedimentation post-pouring belt pre-sealing structure |
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