CN212801651U - Ground is wall and horizontal beam connected node even based on reverse construction method - Google Patents
Ground is wall and horizontal beam connected node even based on reverse construction method Download PDFInfo
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- CN212801651U CN212801651U CN202021125633.2U CN202021125633U CN212801651U CN 212801651 U CN212801651 U CN 212801651U CN 202021125633 U CN202021125633 U CN 202021125633U CN 212801651 U CN212801651 U CN 212801651U
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Abstract
The utility model discloses a connecting node of a ground connecting wall and a horizontal beam based on a reverse construction method, which comprises a pre-buried steel plate, the ground connecting wall, shear-resistant section steel and the horizontal beam; the embedded steel plate is embedded in the underground diaphragm wall, and the inner side of the embedded steel plate is connected with a plurality of embedded anchor bars inserted into the underground diaphragm wall; the outer side of the embedded steel plate is fixedly connected with one end of the shear-resistant section steel; the shear-resistant section steel is arranged at the end of the horizontal beam, is coated in the concrete structure of the horizontal beam, and is welded with the main reinforcement of the horizontal beam. The utility model has the advantages that: the utility model discloses a pre-buried in the ground is the iron spare that shears in the wall even with locate the horizontal beam shaped steel shear spare effectively solved among the traditional construction technology pre-buried sleeve excavation after appear off normal or the problem of damage, guarantee that the ground is even the wall and is connected with the horizontal beam and can be under construction smoothly, avoid a large amount of bar planting in later stage.
Description
Technical Field
The utility model relates to a building engineering field, concretely relates to ground is wall and horizontal beam connected node even based on reverse construction method.
Background
The reverse construction technology is mature day by day and is beginning to be widely used. The two-in-one underground continuous wall is used as a supporting structure constructed by a reverse construction method and also used as a permanent structure of a basement outer wall, so that the connection construction of the previously constructed underground continuous wall and a horizontal beam is an important difficult point problem. At present, the two are usually connected by adopting an embedded sleeve connector, and the later-stage horizontal beam main rib is connected with the sleeve connector. When the method is adopted for construction, due to the deformation influence during hoisting of the ground connection wall reinforcement cage and the influence of concrete pouring, the connector is largely deflected and damaged during chiseling, and cannot be used, and a large amount of steel bars are planted in the later period to complete connection between the ground connection wall and the horizontal beam.
Disclosure of Invention
An object of the utility model is to prior art not enough, provide a little, the high ground of the construction degree of difficulty links wall and horizontal beam connected node based on reverse construction method.
The utility model adopts the technical proposal that: a connecting node of a ground connecting wall and a horizontal beam based on a reverse construction method comprises an embedded steel plate, the ground connecting wall, shear-resistant section steel and the horizontal beam; the embedded steel plate is embedded in the underground diaphragm wall, and the inner side of the embedded steel plate is connected with a plurality of embedded anchor bars inserted into the underground diaphragm wall; the outer side of the embedded steel plate is fixedly connected with one end of the shear-resistant section steel; the shear-resistant section steel is arranged at the end of the horizontal beam, is coated in the concrete structure of the horizontal beam, and is welded with the main reinforcement of the horizontal beam.
According to the scheme, the stirrups of the horizontal beam extend to the shearing-resistant section steel and are distributed on two sides of the shearing-resistant section steel.
According to the scheme, the shear-resistant section steel is welded with the two sides of the main reinforcement of the horizontal beam.
According to the scheme, the shear-resistant steel is H-shaped steel, and the upper flange plate, the lower flange plate and the web plate of the shear-resistant steel are welded with the embedded steel plate.
According to the scheme, the embedded anchor bars are welded with the embedded steel plates in a perforation mode.
According to the scheme, the embedded anchor bars are twisted steel bars.
The utility model has the advantages that: the utility model adopts the shear resistant iron member pre-embedded in the diaphragm wall and the profile steel shear resistant member arranged in the horizontal beam to effectively solve the problem of deviation or damage after the pre-embedded sleeve is excavated in the traditional construction technology, ensure the diaphragm wall and the horizontal beam to be connected and can be smoothly constructed, and avoid a large amount of planting bars in the later period; the shear-resistant section steel increases the shear-resistant effect of the horizontal beam and is beneficial to binding of reinforcing steel bars; the construction operation is simple, and the construction efficiency and the quality effect are greatly improved.
Drawings
Fig. 1 is the utility model discloses well ground is wall and horizontal beam connected node's schematic diagram even.
Fig. 2 is a schematic diagram of the position of the pre-buried profile steel of the present invention.
Fig. 3 is the utility model discloses well pre-buried shaped steel plate and pre-buried anchor bar's connection schematic diagram.
Fig. 4 is a sectional view a-a of fig. 1.
Fig. 5 is a front view of the shear-resistant steel of the present invention.
Wherein: 1-underground diaphragm wall; 2-embedding anchor bars, and 3-embedding profiled steel plates; 4-shear resistant steel sections; 5-horizontal beam; 6-main reinforcement; 7-stirrup.
Detailed Description
For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
As shown in fig. 1, the connecting node of the ground connecting wall and the horizontal beam based on the reverse construction method comprises an embedded steel plate 3, the ground connecting wall 1, a shear-resistant steel 4 and a horizontal beam 5; the embedded steel plates 3 are embedded in the underground diaphragm wall 1, and the inner side of the embedded steel plates is connected with a plurality of embedded anchor bars 2 (which can be uniformly arranged at intervals) inserted into the underground diaphragm wall 1; the outer side of the embedded steel plate 3 is fixedly connected with one end of the shear-resistant steel section 4; the shear-resistant steel profiles 4 are arranged at the ends of the horizontal beams 5 and are wrapped in the concrete structures of the horizontal beams 5, and the shear-resistant steel profiles 4 are welded with the main reinforcements 6 of the horizontal beams 5, as shown in fig. 2.
Preferably, the shear-resistant steel 4 is welded with the horizontal beam main reinforcement 6 on two sides; the stirrups 7 of the horizontal beam 5 extend to the shear-resistant steel 4 and are distributed on both sides of the shear-resistant steel 4, as shown in fig. 2 and 4. In this embodiment, the shear-resistant steel 4 may be H-shaped steel, and the upper and lower flange plates and the web plate of the shear-resistant steel 4 are welded to the embedded steel plate 3.
In the utility model, the thickness of the pre-embedded steel plate 3 is 2 cm-3 cm, and the Q235 section steel is preferred; the embedded anchor bars 2 are welded with the embedded steel plates 3 through holes, as shown in fig. 3, that is, the embedded steel plates 3 are provided with mounting holes (the aperture of the mounting hole is slightly larger than the diameter of the embedded anchor bar 2) matched with the embedded anchor bars 2, and the embedded anchor bars 2 are inserted into the mounting holes and then welded. In this embodiment, the diameter of the embedded anchor bar 2 is the same as the diameter of the main bar 6 of the horizontal beam 5.
The utility model discloses in, pre-buried anchor bar 2 and pre-buried shaped steel plate 3 all accomplish with the same earlier stage construction of ground wall 1. And when the horizontal beam 5 is constructed in the later stage, chiseling the protective layer on the outer side of the embedded steel plate 3, welding the shear-resistant steel section 4 on the embedded steel plate 3, and then welding the main ribs 6 of the horizontal beam 5 on the shear-resistant steel section 4 on the two sides to complete the connection of the early-stage diaphragm wall 1 and the horizontal beam 6.
The construction method of the connecting node specifically comprises the following steps:
step one, designing and connecting the embedded steel plate 3 and the embedded anchor bars 2: cutting a steel plate cutting torch to manufacture an embedded steel plate 3, cutting a mounting hole matched with the embedded anchor bar 2 (the diameter of the mounting hole is slightly larger than that of the embedded anchor bar 2) on the embedded steel plate, penetrating the embedded anchor bar 2 into the mounting hole, and then vertically and fully welding and fixing the embedded steel plate and the embedded anchor bar to form an embedded assembly; the diameter and the reserved length of the embedded anchor bars 2 need to meet the design requirement of the diameter and the length of the anchoring-in ground connecting wall 1. This exampleIn the middle, the thickness of the pre-buried steel plate 3 is 2 cm-3 cm; the embedded anchor bars 2 are made of threaded steel bars with the diameter of 25mm (the diameter of the embedded anchor bars can be the same as that of the main bars 6 of the horizontal beam 5), and the length of the anchored underground diaphragm wall 1 is 35d1Wherein d is1The diameter of the anchor bar 2 is pre-embedded.
Step two, constructing the underground diaphragm wall 1 and embedding the embedded components: according to the design, lofting is carried out on a reinforcement cage of the underground diaphragm wall 1, an embedded steel plate 3 and an embedded anchor bar 2 are installed after an embedded position is determined, and the fixation is firm; an isolation adhesive tape is pasted on the embedded steel plate 3 (so that concrete at the later stage can be chiseled off conveniently); and erecting a template and pouring the diaphragm wall 1.
And step three, chiseling and processing the surface protective layer of the embedded steel plate 3: excavating earth to a position 0.8-1.2 m below the horizontal beam 5, and providing a working surface for chiseling the protective layer and welding the embedded steel plate 3 and the shear-resistant steel 4; and chiseling the protective layer of the diaphragm wall by using an air pick to expose the embedded steel plate 3, and cleaning the surface of the embedded steel plate 3 by using a grinding wheel.
Fourthly, positioning the shear-resistant steel sections 4 and connecting the shear-resistant steel sections with the embedded steel plates 3: the position of the shear-resistant section steel 4 is determined by adopting the direction of a full drilling rig, a red paint pen is used for marking the pre-buried steel plate 3, and the shear-resistant section steel 4 and the pre-buried steel plate 3 are fully welded by adopting a single-side groove. In this embodiment, the shear-resistant steel 4 may be H-shaped steel.
Step five, erecting and arranging ribs on the horizontal beam 5 template: the earth excavation is carried out along with reverse operation, after the excavation reaches the designed elevation, a horizontal beam 5 template is erected, a main reinforcement 6 and a hoop reinforcement 7 of the horizontal beam 5 are bound, and the main reinforcement 6 and the shear-resistant section steel 4 are connected by double-sided lap welding. In this example, the main bar 6 and the shear section steel 4 have a welded length of 5d2Wherein d is2The diameter of the main rib 4.
And sixthly, pouring concrete of the horizontal beam 5 to complete the construction of the ground diaphragm wall 1 and the horizontal beam 5 node, as shown in figure 1.
The utility model can ensure that the connection between the diaphragm wall 1 and the horizontal beam 5 can be smoothly constructed, and avoid a large amount of bar planting in the later period; meanwhile, the shear-resistant section steel increases the shear-resistant effect of the horizontal beam 5, and is beneficial to binding of reinforcing steel bars; the construction operation is simple, and the construction efficiency and the quality effect are greatly improved.
Although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications, equivalents, improvements and the like can be made in the technical solutions of the foregoing embodiments or in some technical features of the foregoing embodiments, but all modifications, equivalents, improvements and the like within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (6)
1. A connecting node of a ground connecting wall and a horizontal beam based on a reverse construction method is characterized by comprising an embedded steel plate, the ground connecting wall, shear-resistant section steel and the horizontal beam; the embedded steel plate is embedded in the underground diaphragm wall, and the inner side of the embedded steel plate is connected with a plurality of embedded anchor bars inserted into the underground diaphragm wall; the outer side of the embedded steel plate is fixedly connected with one end of the shear-resistant section steel; the shear-resistant section steel is arranged at the end head of the horizontal beam and is wrapped in the concrete structure of the horizontal beam; and the shear-resistant profile steel is welded with the main reinforcement of the horizontal beam.
2. The reverse-construction-based diaphragm wall and horizontal beam connecting node as claimed in claim 1, wherein the horizontal beam has stirrups extending to and distributed on both sides of the shear-resistant steel.
3. The reverse construction based ground connecting wall and horizontal beam joint of claim 1, wherein the shear resistant steel is double-side welded to the main rib of the horizontal beam.
4. The underground diaphragm wall and horizontal beam connecting node based on reverse construction method according to claim 1, wherein the shear-resistant steel is H-shaped steel, and the upper and lower flange plates and the web plate of the shear-resistant steel are welded with the embedded steel plate.
5. The reverse-construction-based ground connection wall and horizontal beam connection node as claimed in claim 1, wherein the embedded anchor bars are welded with the embedded steel plates through holes.
6. The reverse-construction-based ground connection wall and horizontal beam connection node as claimed in claim 1, wherein the embedded anchor bars are twisted steel bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021125633.2U CN212801651U (en) | 2020-06-17 | 2020-06-17 | Ground is wall and horizontal beam connected node even based on reverse construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021125633.2U CN212801651U (en) | 2020-06-17 | 2020-06-17 | Ground is wall and horizontal beam connected node even based on reverse construction method |
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| CN212801651U true CN212801651U (en) | 2021-03-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113445533A (en) * | 2021-07-07 | 2021-09-28 | 上海建工一建集团有限公司 | Construction method of concrete support embedded bottom plate and support and bottom plate node connecting piece |
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2020
- 2020-06-17 CN CN202021125633.2U patent/CN212801651U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113445533A (en) * | 2021-07-07 | 2021-09-28 | 上海建工一建集团有限公司 | Construction method of concrete support embedded bottom plate and support and bottom plate node connecting piece |
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