CN219343276U - Double-sided prefabricated superposed well wall structure of circular open caisson - Google Patents
Double-sided prefabricated superposed well wall structure of circular open caisson Download PDFInfo
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- CN219343276U CN219343276U CN202320417386.0U CN202320417386U CN219343276U CN 219343276 U CN219343276 U CN 219343276U CN 202320417386 U CN202320417386 U CN 202320417386U CN 219343276 U CN219343276 U CN 219343276U
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Abstract
The utility model discloses a double-sided prefabricated superposed well wall structure of a circular open caisson, which comprises a plurality of arc-shaped prefabricated units, wherein the side parts of the adjacent prefabricated units are spliced to form a circle; the prefabrication unit comprises a prefabrication outer wall, a prefabrication inner wall and a plurality of lattice steel bars; a gap is reserved between the prefabricated outer wall and the prefabricated inner wall to form a pouring cavity; the outer ends of the lattice steel bars are fixedly connected with the prefabricated outer walls, the inner ends of the lattice steel bars are fixedly connected with the prefabricated inner walls, and the prefabricated outer walls and the prefabricated inner walls are connected together through the lattice steel bars; a separation seam is reserved between adjacent prefabricated units in the same layer; the outside of the separation joint is provided with a water-swelling water stop strip, and the inside of the separation joint is trowelled and provided with an elastic mortar layer; a pouring layer is cast in situ in a pouring cavity between the prefabricated outer wall and the prefabricated inner wall, and each spliced prefabricated unit is fixed together through the pouring layer to form a well wall; the utility model has simple structure, convenient construction and good use effect.
Description
Technical Field
The utility model relates to the technical field of engineering construction, in particular to a double-sided prefabricated superposed well wall structure of a circular open caisson.
Background
Prefabricated assembly is a major trend in the construction industry. For open caisson, the prefabrication of the well wall mainly comprises two directions, namely, an integral type prefabrication and a cast-in-situ method for the sandwich part of the inner well wall and the outer well wall. The integral type subway-taking shield segments are only suitable for small open caissons because the construction precision of the open caissons is not high and the mechanical operation does not reach the subway engineering; the cast-in-situ method for prefabricating the sandwich part of the inner and outer well walls mainly aims at solving the problem of the integrity, namely the coordination of the inner and outer well walls, how to transfer the shearing force and the pulling force, and the prior method basically comprises the steps of arranging rib beams between the inner and outer well walls to transfer the pulling force and the shearing force and integrally arranging the rib beams, and obviously causes great difficulty in molding, reinforcing steel bar and pouring, so that the actual use requirement is difficult to meet.
Disclosure of Invention
The utility model aims to provide a double-sided prefabricated superposed well wall structure of a circular open caisson, which utilizes truss type lattice steel bars to manufacture the well wall into the double-sided prefabricated superposed structure, combines pin joint and hidden beam connection nodes, and has the advantages of cast-in-situ pouring layer, simple structure, convenient construction and good use effect.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a double-sided prefabricated superposed well wall structure of a circular open caisson comprises a plurality of arc-shaped prefabricated units, wherein the side parts of the adjacent prefabricated units are spliced to form a circle; the prefabrication unit comprises a prefabrication outer wall, a prefabrication inner wall and a plurality of lattice steel bars; a gap is reserved between the prefabricated outer wall and the prefabricated inner wall to form a pouring cavity; the outer ends of the lattice steel bars are fixedly connected with the prefabricated outer walls, the inner ends of the lattice steel bars are fixedly connected with the prefabricated inner walls, and the prefabricated outer walls and the prefabricated inner walls are connected together through the lattice steel bars; a separation seam is reserved between adjacent prefabricated units in the same layer; the outside of the separation joint is provided with a water-swelling water stop strip, and the inside of the separation joint is trowelled and provided with an elastic mortar layer; and a pouring layer is cast in situ in a pouring cavity between the outer prefabricated wall and the inner prefabricated wall, and the spliced prefabricated units are fixed together through the pouring layer to form a well wall.
Further, an outer side vertical stress rib is longitudinally arranged in the prefabricated outer wall, and an outer side horizontal stress rib is circumferentially arranged in the prefabricated outer wall; an inner side vertical stress rib is longitudinally arranged in the prefabricated inner wall, and an inner side horizontal stress rib is arranged in the prefabricated inner wall along the circumferential direction; the outer ends of the lattice steel bars are fixedly connected with the outer side horizontal stress bars, and the inner ends of the lattice steel bars are fixedly connected with the inner side horizontal stress bars.
Further, pin connectors are arranged in casting cavities between adjacent prefabricated units in the same layer; the pin connector comprises a pin joint stirrup and a plurality of pin joint longitudinal bars; the pin joint longitudinal bars are fixedly connected with the prefabricated outer walls or the prefabricated inner walls, and the pin joint stirrups are sleeved outside the pin joint longitudinal bars on the left prefabricated unit and the right prefabricated unit.
Further, a hidden beam reinforcing steel bar is arranged in a pouring cavity between the adjacent prefabricated units of the upper layer and the lower layer; the hidden beam steel bar comprises a hidden beam stirrup and a plurality of hidden beam transverse bars; and the hidden beam transverse ribs are fixedly connected with the prefabricated outer wall or the prefabricated inner wall, and the hidden beam stirrups are sleeved outside the hidden beam transverse ribs on the upper and lower adjacent prefabricated units.
Further, the prefabricated outer wall and the prefabricated inner wall upper end are fixed with the locating key, and prefabricated outer wall and prefabricated inner wall lower extreme are provided with the constant head tank, and the locating key from bottom to top closely imbeds in the constant head tank and links together the prefabricated unit of upper and lower floor.
Further, the upper ends of the prefabricated outer wall and the prefabricated inner wall are pre-buried and fixed with a plurality of hoisting nuts used for being connected with bolts of hoisting equipment.
After the technical scheme is adopted, the utility model has the following beneficial effects: according to the double-sided prefabricated superposed well wall structure of the circular open caisson, factory prefabrication is optimized, a three-dimensional structure is converted into a double-curved plate member, and the reinforcement method of a prefabricated template and a prefabricated member and the concrete pouring difficulty are simplified; in addition, the site operation is simplified, in particular to the reinforcement engineering, the pin connecting piece between the prefabricated units at the same layer and the hidden beam reinforcement between the prefabricated units at the same layer below are left after the reinforcement is required to be bound, the structure is simple, the construction is convenient, and the use effect is good.
Drawings
FIG. 1 is a schematic plan view of the present utility model;
FIG. 2 is a schematic view of the structure of an adjacent left and right prefabricated inter-unit pin connector according to the present utility model;
FIG. 3 is a schematic view of the structure taken along line A-A in FIG. 2;
FIG. 4 is a schematic structural view of a hidden beam reinforcement between two adjacent upper and lower prefabricated units according to the present utility model;
FIG. 5 is a schematic top view of the prefabricated unit of the present utility model;
fig. 6 is a schematic structural view of a positioning key and a positioning groove according to the present utility model.
The reference numerals in the drawings are as follows:
1. prefabricating a unit; 10. prefabricating an outer wall; 100. the outer side is provided with vertical stress ribs; 101. the outer side is horizontally stressed; 11. prefabricating an inner wall; 110. the inner side is provided with vertical stress ribs; 111. an inner horizontal stress rib; 12. lattice steel bars; 13. a positioning key; 14. a positioning groove; 15. hoisting a nut; 2. a separation slit; 3. a water-swelling water stop strip; 4. an elastic mortar layer; 5. pouring a layer; 6. a pin connection; 60. a hooping bar is pinned; 61. pinning the longitudinal ribs; 7. concealed beam steel bars; 70. hidden beam stirrups; 71. and a hidden beam transverse rib.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1 to 6, a double-sided prefabricated stacked well wall structure of a circular open caisson comprises a plurality of arc-shaped prefabricated units 1, wherein the side parts of the adjacent prefabricated units 1 are spliced to form a circle; the prefabrication unit 1 comprises a prefabrication outer wall 10, a prefabrication inner wall 11 and a plurality of lattice steel bars 12; a gap is reserved between the prefabricated outer wall 10 and the prefabricated inner wall 11 to form a pouring cavity; the outer ends of the lattice steel bars 12 are fixedly connected with the prefabricated outer wall 10, the inner ends of the lattice steel bars 12 are fixedly connected with the prefabricated inner wall 11, and the prefabricated outer wall 10 and the prefabricated inner wall 11 are connected together through the lattice steel bars 12; a separation seam 2 is reserved between adjacent prefabricated units 1 in the same layer; the outside of the separation joint 2 is provided with a water-swelling water stop strip 3, and the inside of the separation joint 2 is trowelled and provided with an elastic mortar layer 4; a pouring layer 5 is cast in situ in a pouring cavity between the prefabricated outer wall 10 and the prefabricated inner wall 11, and each spliced prefabricated unit 1 is fixed together through the pouring layer 5 to form a well wall.
As shown in fig. 2, 3 and 4, an outer vertical stress rib 100 is longitudinally arranged in the prefabricated outer wall 10, and an outer horizontal stress rib 101 is circumferentially arranged in the prefabricated outer wall 10; an inner vertical stress rib 110 is longitudinally arranged in the prefabricated inner wall 11, and an inner horizontal stress rib 111 is circumferentially arranged in the prefabricated inner wall 11; the outer ends of the lattice bars 12 are fixedly connected with the outer side horizontal stress bars 101, and the inner ends of the lattice bars 12 are fixedly connected with the inner side horizontal stress bars 111.
As shown in fig. 1 and 2, pin connectors 6 are arranged in casting cavities between adjacent prefabricated units 1 in the same layer; the pin connection 6 comprises a pin joint stirrup 60 and a plurality of pin joint longitudinal ribs 61; the pin joint longitudinal ribs 61 are fixedly connected with the prefabricated outer wall 10 or the prefabricated inner wall 11, and the pin joint stirrups 60 are sleeved outside the pin joint longitudinal ribs 61 on the left and right adjacent prefabricated units 1.
As shown in fig. 1 and 4, a hidden beam reinforcement 7 is arranged in a casting cavity between the adjacent prefabricated units 1 on the upper layer and the lower layer; the hidden beam steel bar 7 comprises a hidden beam stirrup 70 and a plurality of hidden beam transverse bars 71; the hidden beam transverse ribs 71 are fixedly connected with the prefabricated outer wall 10 or the prefabricated inner wall 11, and the hidden beam stirrups 70 are sleeved outside the hidden beam transverse ribs 71 on the upper and lower adjacent prefabricated units 1.
As shown in fig. 5 and 6, the upper ends of the prefabricated outer wall 10 and the prefabricated inner wall 11 are fixed with positioning keys 13, the lower ends of the prefabricated outer wall 10 and the prefabricated inner wall 11 are provided with positioning grooves 14, and the positioning keys 13 are tightly embedded into the positioning grooves 14 from bottom to top to connect the prefabricated units 1 on the upper layer and the lower layer together.
As shown in fig. 5, a plurality of hoisting nuts 15 for connecting with bolts of the hoisting device are pre-buried and fixed at the upper ends of the prefabricated outer wall 10 and the prefabricated inner wall 11.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
Claims (6)
1. A circular open caisson double-sided prefabricated superposed well wall structure is characterized in that: comprises a plurality of arc-shaped prefabricated units (1), and a circle is formed by splicing the side parts of the adjacent prefabricated units (1); the prefabrication unit (1) comprises a prefabrication outer wall (10), a prefabrication inner wall (11) and a plurality of lattice steel bars (12); a gap is reserved between the prefabricated outer wall (10) and the prefabricated inner wall (11) to form a pouring cavity; the outer ends of the lattice steel bars (12) are fixedly connected with the prefabricated outer wall (10), the inner ends of the lattice steel bars (12) are fixedly connected with the prefabricated inner wall (11), and the prefabricated outer wall (10) and the prefabricated inner wall (11) are connected together through the lattice steel bars (12); a separation seam (2) is reserved between adjacent prefabricated units (1) in the same layer; the outside of the separation joint (2) is provided with a water-swelling water stop strip (3), and the inside of the separation joint (2) is screeded and provided with an elastic mortar layer (4); and a pouring layer (5) is cast in situ in a pouring cavity between the prefabricated outer wall (10) and the prefabricated inner wall (11), and each spliced prefabricated unit (1) is fixed together through the pouring layer (5) to form a well wall.
2. A double-sided prefabricated stacked well wall structure for a circular open caisson according to claim 1, wherein: an outer side vertical stress rib (100) is longitudinally arranged in the prefabricated outer wall (10), and an outer side horizontal stress rib (101) is circumferentially arranged in the prefabricated outer wall (10); an inner side vertical stress rib (110) is longitudinally arranged in the prefabricated inner wall (11), and an inner side horizontal stress rib (111) is arranged in the prefabricated inner wall (11) along the circumferential direction; the outer ends of the lattice steel bars (12) are fixedly connected with the outer side horizontal stress bars (101), and the inner ends of the lattice steel bars (12) are fixedly connected with the inner side horizontal stress bars (111).
3. A double-sided prefabricated stacked well wall structure for a circular open caisson according to claim 1, wherein: a pin connecting piece (6) is arranged in a pouring cavity between adjacent prefabricated units (1) in the same layer; the pin connection (6) comprises a pin joint stirrup (60) and a plurality of pin joint longitudinal ribs (61); the pin joint longitudinal ribs (61) are fixedly connected with the prefabricated outer wall (10) or the prefabricated inner wall (11), and the pin joint stirrups (60) are sleeved outside the pin joint longitudinal ribs (61) on the left prefabricated unit and the right prefabricated unit (1).
4. A double-sided prefabricated stacked well wall structure for a circular open caisson according to claim 1, wherein: a hidden beam reinforcing steel bar (7) is arranged in a pouring cavity between the adjacent prefabricated units (1) of the upper layer and the lower layer; the hidden beam steel bar (7) comprises a hidden beam stirrup (70) and a plurality of hidden beam transverse bars (71); the hidden beam transverse ribs (71) are fixedly connected with the prefabricated outer wall (10) or the prefabricated inner wall (11), and the hidden beam stirrups (70) are sleeved outside the hidden beam transverse ribs (71) on the upper and lower adjacent prefabricated units (1).
5. A double-sided prefabricated stacked well wall structure for a circular open caisson according to claim 1, wherein: the prefabricated outer wall (10) and the prefabricated inner wall (11) are fixedly provided with positioning keys (13) at the upper ends, positioning grooves (14) are formed in the lower ends of the prefabricated outer wall (10) and the prefabricated inner wall (11), and the positioning keys (13) are tightly embedded into the positioning grooves (14) from bottom to top to connect the prefabricated units (1) on the upper layer and the lower layer together.
6. A double-sided prefabricated stacked well wall structure for a circular open caisson according to claim 1, wherein: and a plurality of hoisting nuts (15) used for being connected with bolts of hoisting equipment are pre-buried and fixed at the upper ends of the prefabricated outer wall (10) and the prefabricated inner wall (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320417386.0U CN219343276U (en) | 2023-03-08 | 2023-03-08 | Double-sided prefabricated superposed well wall structure of circular open caisson |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320417386.0U CN219343276U (en) | 2023-03-08 | 2023-03-08 | Double-sided prefabricated superposed well wall structure of circular open caisson |
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| Publication Number | Publication Date |
|---|---|
| CN219343276U true CN219343276U (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320417386.0U Active CN219343276U (en) | 2023-03-08 | 2023-03-08 | Double-sided prefabricated superposed well wall structure of circular open caisson |
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| Country | Link |
|---|---|
| CN (1) | CN219343276U (en) |
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- 2023-03-08 CN CN202320417386.0U patent/CN219343276U/en active Active
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