CN119266283A - A kind of Yonglin composite assembly station structure and construction method - Google Patents
A kind of Yonglin composite assembly station structure and construction method Download PDFInfo
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- CN119266283A CN119266283A CN202411548409.7A CN202411548409A CN119266283A CN 119266283 A CN119266283 A CN 119266283A CN 202411548409 A CN202411548409 A CN 202411548409A CN 119266283 A CN119266283 A CN 119266283A
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- 238000010276 construction Methods 0.000 title claims abstract description 22
- 239000002131 composite material Substances 0.000 title claims 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 48
- 239000004567 concrete Substances 0.000 claims abstract description 48
- 239000010959 steel Substances 0.000 claims abstract description 48
- 238000004873 anchoring Methods 0.000 claims description 12
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 11
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000011178 precast concrete Substances 0.000 claims 3
- 238000009415 formwork Methods 0.000 claims 1
- 238000011065 in-situ storage Methods 0.000 abstract description 53
- 239000010410 layer Substances 0.000 description 23
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4114—Elements with sockets
- E04B1/4121—Elements with sockets with internal threads or non-adjustable captive nuts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B2001/4192—Connecting devices specially adapted for embedding in concrete or masonry attached to concrete reinforcing elements, e.g. rods or wires
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a permanent face superposed assembly station structure and a construction method, wherein the permanent face superposed assembly station structure comprises an enclosure structure, a prefabricated middle longitudinal beam, a cast-in-situ bottom plate, prefabricated side walls and a prefabricated middle plate, the prefabricated side walls are arranged on the left side and the right side of the top of the cast-in-situ bottom plate, the prefabricated side walls are formed by splicing a plurality of side wall superposed prefabricated blocks, each side wall superposed prefabricated block comprises a first steel bar truss and a first concrete prefabricated block, a cast-in-situ core wall is arranged between the enclosure structure and the first concrete prefabricated block, the prefabricated middle plate is arranged on the top of the prefabricated middle longitudinal beam and the prefabricated side wall, the prefabricated middle plate is formed by splicing a plurality of middle plate superposed prefabricated blocks, each middle plate superposed prefabricated block comprises a second steel bar truss and a second concrete prefabricated block, a middle plate cast-in-situ layer is arranged on the top of the second concrete prefabricated block, and the cast-in-situ core wall and the middle plate cast-in-situ layer are integrally cast. According to the invention, the cast-in-place layer of the core wall and the middle plate is cast at one time and integrally formed, so that one horizontal construction joint arrangement can be reduced, and the structural integrity and the waterproof quality are greatly improved.
Description
Technical Field
The invention relates to the technical field of subway station construction, in particular to a permanent superposition assembly station structure and a construction method.
Background
The traditional subway station is generally constructed in an on-site pouring mode, namely, a template is built, reinforcing steel bars are bound, concrete is poured, after the concrete is solidified, the concrete and the reinforcing steel bars jointly form a reinforced concrete member, so that the reinforced concrete member is used as a laminate, a pillar or a wallboard of the subway station, the occupied space of the site is large, the construction procedures of a side wall, a structural column, a longitudinal beam and a structural board are long, the template support is consumed for a large time during construction, the labor input is large, the material waste is serious, and the problems of low civilized construction and environmental protection degree are solved. In order to trample the green low-carbon high-quality development target of the industry building industry, the urban rail transit field is continuously researched and created, and the building technology of the assembled subway station is generated. Compared with the traditional subway station building technology, the assembled subway station has the advantages of high construction speed, good component quality, less environmental pollution and the like. However, the existing assembly type subway station assembly members have more joints, and the integrity and waterproof quality of the station structure are affected.
Therefore, how to provide a forever overlapping assembly station structure and a construction method capable of providing structural integrity and waterproof quality is one of the technical problems to be solved in the art.
Disclosure of Invention
In view of the above, the invention provides a station structure assembled by lamination permanently and a construction method, and aims to solve the problems in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
A permanent temporary overlapped assembly station structure comprises an enclosure structure, a foundation pit, prefabricated columns, prefabricated middle longitudinal beams, a cast-in-situ bottom plate, prefabricated side walls and prefabricated middle plates, wherein the cast-in-situ bottom plate is arranged at the bottom of the foundation pit, the prefabricated columns are arranged at the middle positions of the tops of the cast-in-situ bottom plates, the prefabricated middle longitudinal beams are arranged on the prefabricated columns, prefabricated side walls are arranged on the left side and the right side of the tops of the cast-in-situ bottom plates, the prefabricated side walls are formed by splicing a plurality of side wall overlapped prefabricated blocks, each side wall overlapped prefabricated block comprises a first steel bar truss and a first concrete prefabricated block arranged on one side of the first steel bar truss far away from the prefabricated side wall, a cast-in-situ core wall is arranged between the enclosure structure and the first concrete prefabricated block, the prefabricated middle plates are arranged at the tops of the prefabricated middle longitudinal beams and the prefabricated side walls, each prefabricated middle plate is formed by splicing a plurality of overlapped middle plate prefabricated precast blocks, each middle plate overlapped prefabricated block comprises a second steel bar truss and a second concrete prefabricated block arranged at the lower part of the second steel bar truss, the second concrete precast block is arranged at the tops of the cast-in-situ core layer is integrally formed by cast-in-situ.
The cast-in-situ bottom plate is characterized in that a first anchor bar and a steel bar connector are embedded in the enclosure structure, a lower row of main bars in the cast-in-situ bottom plate are connected with the corresponding first anchor bars through the steel bar connector, and an upper row of main bars of the second steel bar truss are connected with the corresponding first anchor bars through the steel bar connector.
Preferably, the top of the first concrete precast block is fixedly connected with the enclosure structure through a pull rod.
The pull rod comprises an anchoring section, a pull ring section and a connecting section, wherein the anchoring section and the pull ring section are respectively connected with two ends of the connecting section in a threaded mode, one end, away from the connecting section, of the anchoring section is arranged inside the enclosure structure, and one end, away from the connecting section, of the pull ring section is sleeved on a main rib of one side, away from the enclosure structure, of the first steel bar truss.
Preferably, the two sides of the bottom of the second concrete precast block are provided with first shear pin key holes; the top of the first concrete precast block and the top of the precast middle longitudinal beam are respectively provided with a second shear pin key hole corresponding to the first shear pin key hole, and shear steel bars are arranged inside the first shear pin key holes and the corresponding second shear pin key holes.
The concrete prefabricated block comprises a building envelope, a first concrete prefabricated block, a second concrete prefabricated block, a first shear pin key hole, a second shear pin key hole and a second shear pin key hole, wherein the building envelope is arranged on the building envelope, the first concrete prefabricated block is arranged on the building envelope, the second concrete prefabricated block is arranged on the building envelope, and the second shear pin key hole is arranged on the top of the building envelope.
Preferably, a reinforcing steel bar cage is arranged between the left and right adjacent first steel bar trusses.
The construction method for the forever overlapped assembly station structure comprises the following steps:
s1, constructing an enclosure structure, and excavating a foundation pit;
s2, constructing a cast-in-situ bottom plate;
S3, installing a prefabricated column;
S4, assembling the side wall superposed prefabricated blocks on two sides of the top of the cast-in-situ bottom plate to form prefabricated side walls;
S5, installing a prefabricated middle longitudinal beam on the prefabricated column;
s6, assembling middle plate superposed prefabricated blocks on the tops of the prefabricated side walls and the middle longitudinal beams to form a prefabricated middle plate;
s7, installing a side wall and a middle plate construction section plug end template;
And S8, pouring concrete between the top of the second concrete precast block, the enclosure structure and the first concrete precast block to form a cast-in-place core wall and a cast-in-place layer of the middle plate.
Compared with the prior art, the invention has the following technical effects that the enclosure structure and the prefabricated side wall realize ' two-in-one ' through the cast-in-situ core wall to form a structural system of the enclosure structure, the cast-in-situ core wall and the prefabricated side wall ', the structural waterproof layer can be omitted, the thickness of the side wall is reduced, and the cast-in-situ core wall and the middle plate cast-in-situ layer are cast once and integrally formed, so that one horizontal construction joint arrangement can be reduced, and the structural integrity and the waterproof quality are greatly improved.
Drawings
FIG. 1 is a schematic view of a station structure assembled by permanent superposition according to the present invention;
FIG. 2 is a schematic view of a prefabricated middle panel, prefabricated side walls and prefabricated middle rail connection sections;
FIG. 3 is an enlarged partial schematic view of the connection portion of the prefabricated middle plate and the prefabricated side wall;
FIG. 4 is a schematic diagram of the connection of the prefabricated side walls to the enclosure and cast-in-place floor;
FIG. 5 is a schematic view of a pull rod;
FIG. 6 is a top view of a spliced portion of the side wall superposed precast blocks;
FIG. 7 is a side view of a spliced portion of the side wall superposed precast blocks;
FIG. 8 is a schematic view of the connection of the cast-in-situ floor and the enclosure;
FIG. 9 is a schematic view of a cup opening;
FIG. 10 is a front view of a side wall laminated prefabricated section;
FIG. 11 is a side view of a side wall laminated prefabricated section;
FIG. 12 is a front view of a middle plate stacked prefabricated section;
FIG. 13 is a top view of a middle plate stacked prefabricated section;
In the figure, 1, an enclosure structure, 2, a prefabricated column, 3, a prefabricated middle longitudinal beam, 4, a cast-in-situ bottom plate, 5, a prefabricated side wall, 501, a side wall superposed prefabricated block, 5011, a first steel bar truss, 5012, a first concrete prefabricated block, 6, a prefabricated middle plate, 601, a middle plate superposed prefabricated block, 6011, a second steel bar truss, 6012, a second concrete prefabricated block, 7, a cast-in-situ core wall, 8, a middle plate cast-in-situ layer, 9, a first anchor bar, 10, a steel bar connector, 11, a pull rod, 1101, an anchor section, 1102, a pull ring section, 1103, a connecting section, 12, a first shear pin key hole, 13, a second shear pin key hole, 14, a shear-resistant steel bar, 15, a side wall bracket, 16, a middle longitudinal beam bracket, 17, a reinforcing steel bar cage, 18, a second anchor bar, 19, a prefabricated top plate, 20, a top plate cast-in-situ layer, 21 and a mouth.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
Referring to fig. 1-13, the invention provides a forever superposition assembly station structure, which comprises a surrounding structure 1, a foundation pit, a precast column 2, a precast middle longitudinal beam 3, a cast-in-situ bottom plate 4, precast side walls 5 and precast middle plates 6, wherein the cast-in-situ bottom plate 4 is arranged at the bottom of the foundation pit, the precast column 2 is arranged at the middle position of the top of the cast-in-situ bottom plate 4, the precast middle longitudinal beam 3 is arranged on the precast column 2, precast side walls 5 are arranged on the left side and the right side of the top of the cast-in-situ bottom plate 4, the precast side walls 5 are formed by splicing a plurality of side wall superposition precast blocks 501, the side wall superposition precast blocks 501 comprise a first reinforced truss 5011 and a first concrete precast block 5012 arranged on one side of the first reinforced truss 5011 far from the precast side walls 5, the first concrete precast block 5012 is used as a template, the side wall structural member can achieve the template-free bracket effect, a cast-in-situ core wall 7 is arranged between the surrounding structure 1 and the first concrete precast block 5012, the precast middle plates 6 are arranged at the tops of the precast middle longitudinal beam 3 and the precast middle plates 5, the middle plates are formed by splicing the middle plates 601, the cast-in-situ precast side walls 601, the middle plates 601 comprise a plurality of precast side walls 601, the cast-in-situ precast truss 1 is formed by splicing layer, the precast middle plate 601, the precast truss is formed by the precast truss is integrally, the precast in the middle plate 6011 comprises a second reinforced truss 6011 is integrally and a layer is integrally arranged at the bottom 6011, and a bottom 6018 is formed by a layer of the second reinforced truss 6018, and is integrally is formed by a layer.
According to the technical scheme, the enclosure structure and the prefabricated side wall are integrated through the cast-in-situ core wall to form a structural system of the enclosure structure, the cast-in-situ core wall and the prefabricated side wall, a structural waterproof layer can be omitted, the thickness of the side wall is reduced, and meanwhile, the cast-in-situ core wall and the cast-in-situ layer of the middle plate are cast at one time and are integrally formed, so that one horizontal construction joint arrangement can be reduced, and the structural integrity and waterproof quality are greatly improved.
In this embodiment, the enclosure 1 is an underground diaphragm wall.
In the embodiment, a first anchor bar 9 and a steel bar connector 10 corresponding to each layer of structural plates are pre-embedded in the enclosure structure 1, a lower row of main bars in the cast-in-situ bottom plate 4 are connected with the corresponding first anchor bars 9 through the steel bar connector 10, an upper row of main bars of the second steel bar truss 6011 are connected with the corresponding first anchor bars 9 through the steel bar connector 10, and steel bar connection between each layer of structural plates and the enclosure structure is realized through an enclosure structure pre-embedding technology, so that the whole stress is reliable.
In this embodiment, the top of the first concrete precast block 5012 is fixedly connected with the enclosure 1 through a pull rod 11.
In this embodiment, the pull rod 11 includes an anchoring section 1101, a pull ring section 1102 and a connecting section 1103, where the anchoring section 1101 and the pull ring section 1102 are respectively in threaded connection with two ends of the connecting section 1103, one end of the anchoring section 1101 away from the connecting section 1103 is disposed inside the enclosure 1, and one end of the pull ring section 1102 away from the connecting section 1103 is sleeved on a main rib of one side of the first steel bar truss 5011 away from the enclosure 1.
In the embodiment, the two sides of the bottom of the second concrete precast block 6012 are respectively provided with a first shear pin key hole 12, the tops of the first concrete precast block 5012 and the precast middle longitudinal beam 3 are respectively provided with a second shear pin key hole 13 corresponding to the first shear pin key holes 12, and the interiors of the first shear pin key holes 12 and the corresponding second shear pin key holes 13 are respectively provided with a shear steel bar 14.
In the embodiment, a side wall bracket 15 is arranged at one side, far away from the enclosure structure 1, of the top of the first concrete precast block 5012, middle longitudinal beam brackets 16 are arranged at two sides of the precast middle longitudinal beam 3, and second shear pin key holes 13 are formed in the tops of the side wall bracket 15 and the middle longitudinal beam brackets 16.
In this embodiment, a reinforcing steel bar cage 17 is disposed between the left and right adjacent first steel bar trusses 5011, so as to ensure reliable structural connection between the cast-in-situ core wall 7 and the enclosure structure 1 and between the assembled joints of the side wall superposed precast blocks 501.
In the embodiment, the longitudinal spacing of the reinforcing steel bar cage 17 is 1950mm, the stirrups are arranged in a trapezoid shape of 350x240x150mm by adopting phi 12 primary steel, the vertical spacing is 150mm, the vertical ribs are 6 phi 18 tertiary steel, and the length of the vertical ribs is the same as that of the main ribs in the side wall superposed precast block 501
In the embodiment, a first concrete precast block 5012 is precast to be 150mm thick, the precast width is 1945mm, a side wall bracket 15 with the thickness of 150x200mm is arranged on one side of the top, the height is determined according to the net height of the side wall, the weight of a single component is not more than 10t, conventional equipment is adopted for hoisting, a second shear pin key hole 13 with the thickness of phi 50mm is longitudinally reserved on the top of the side wall bracket 15, the second shear pin key hole is symmetrically arranged at the interval of 200-300 mm, and the hole depth is 150mm.
In this embodiment, the second concrete prefabricated section 6012 is prefabricated to be 200mm thick and prefabricated to be 1945mm wide. First shear pin key holes 12 with phi 50mm are reserved on two sides of the bottom of the second concrete precast block 6012, the intervals are symmetrically arranged at 200-300 mm.
In this embodiment, the shear steel bar 14 has a diameter of Φ30mm.
In this embodiment, the forever overlapping assembly station structure further includes a prefabricated top plate 19 and a top plate cast-in-situ layer 20, the prefabricated top plate 19 is formed by splicing a plurality of top plate overlapping prefabricated blocks, the top plate overlapping prefabricated blocks have the same structure as the middle plate overlapping prefabricated block 601, and the top plate cast-in-situ layer 20 is arranged on the top of the prefabricated top plate 19.
In the embodiment, a prefabricated side wall 5 is arranged at one side of the bottom of a prefabricated top plate 19, which is close to an enclosure structure 1, and the other side of the prefabricated top plate is arranged on a corresponding prefabricated middle longitudinal beam 3, a cast-in-situ core wall 7 is also arranged between the prefabricated side wall 5 and the enclosure structure 1, and the cast-in-situ core wall 7 and a top plate cast-in-situ layer 20 are integrally cast and formed.
The invention also provides a construction method for the permanent superposition assembly station structure, which comprises the following steps:
s1, constructing an enclosure structure 1, and excavating a foundation pit;
s2, constructing a cast-in-situ bottom plate 4;
s3, installing a prefabricated column 2;
s4, assembling side wall superposition precast blocks 501 on two sides of the top of the cast-in-situ bottom plate 4 to form precast side walls 5;
s5, installing a prefabricated middle longitudinal beam 3 on the prefabricated column 2;
s6, assembling a middle plate superposed prefabricated block 601 on the top of the prefabricated side wall 5 and the top of the middle longitudinal beam to form a prefabricated middle plate 6;
s7, installing a side wall and a middle plate construction section plug end template;
And S8, pouring concrete between the top of the second concrete precast block 6012, the enclosure structure 1 and the first concrete precast block 5012 to form a cast-in-situ core wall 7 and a middle plate cast-in-situ layer 8.
In this embodiment, before the building envelope 1 is constructed, the first anchor bar 9 and the steel bar connector 10 corresponding to the main bars of each layer of structural plates are pre-embedded according to the design elevation of each layer of structural plates during the manufacturing process of the building envelope steel bar cage, and the vertical elevation is strictly controlled during the grooving and hoisting process, so that the allowable deviation is not more than 5mm, and the subsequent effective connection is ensured.
In the embodiment, the construction cast-in-situ bottom plate in S2 specifically comprises the following steps of 1) in the foundation pit excavation process, layering roughening the enclosure structure 1, leaking blue stones, 2) after the foundation pit is applied as a cushion layer, removing and cleaning the pre-buried steel bar connectors 10 corresponding to the cast-in-situ bottom plate 4 in the enclosure structure 1, binding the bottom plate steel bars, connecting the lower row main bars of the bottom plate steel bars with the steel bar connectors 10 one by one, 3) reserving cup openings 21 on the support templates at the short side walls, wherein the plane is in trapezoid arrangement 350x240x150mm, the depth is 300mm, the distance is 1950mm, and pouring bottom plate concrete to form the cast-in-situ bottom plate.
In the embodiment, the assembling of the side wall superposed prefabricated block 501 in the S4 specifically comprises the following steps of 1) fixing the bottom of the side wall superposed prefabricated block 501, assembling the side wall superposed prefabricated block 501 through conventional equipment such as a gantry crane and the like, fully anchoring the bottom external leakage main rib of the side wall superposed prefabricated block into a grouting sleeve for fixing, 2) fixing the top of the side wall superposed prefabricated block, namely, after a foundation pit is excavated to a designed elevation of a pull rod 11, punching a pull rod anchoring hole, sequentially installing an anchoring section 1101 and sleeving the side wall superposed prefabricated block 501 into a pull ring section 1102 after the side wall superposed prefabricated block 501 is in place, and connecting the middle of the side wall superposed prefabricated block by adopting a connecting section 1103 in threaded connection.
In the embodiment, in S4, after the side wall superposition precast blocks 501 are assembled, a prefabricated reinforcing steel bar cage 17 is installed in the joint between the adjacent side wall superposition precast blocks 501, the bottom of the reinforcing steel bar cage 17 is inserted into a cup opening 21 reserved by a short side wall, the insertion depth is 300mm, the reinforcing steel bar cage is anchored with a second anchor rib 18 pre-buried in the cast-in-situ bottom plate 4, and the top of the reinforcing steel bar cage 17 is bound and fixed with a K-shaped rib in the side wall superposition precast block 501.
In the embodiment, in S6, the middle plate superposed precast block 601 is assembled in position, namely 1) the middle plate superposed precast block 601 is hoisted, the middle plate superposed precast block 601 is positioned on the side wall bracket 15 and the middle longitudinal beam bracket 16, wherein the distances between two ends of the middle plate superposed precast block 601, the outer leakage stirrups of the prefabricated middle longitudinal beam 3 and the outer leakage main stirrups at the top of the side wall superposed precast block 501 are 150mm, when the middle plate superposed precast block 601 is assembled in position, the main stirrups of the middle plate superposed precast block 601 fall at the position of 75mm of the center distances between the main stirrups of the side wall superposed precast block 501 and the stirrups of the prefabricated middle longitudinal beam 3, 2) the shear steel bars 14 are installed, namely, after the second shear pin key holes 13 on the side wall bracket 15 and the middle longitudinal beam bracket 16 are completely corresponding to the first shear pin key holes 12 on two sides of the bottom of the second concrete precast block 6012, the shear steel bars 14 are installed, and after the strength of the grouting materials reach, a joint system of the side wall, middle plate and middle longitudinal beam are firmly poured to resist side wall lateral pressure concrete.
In this embodiment, in S6, after the prefabricated middle plate 6 is installed in place, the roughening quality of the enclosure structure 1 is checked, the reinforcement connector 10 pre-embedded in the enclosure structure 1 corresponding to the prefabricated middle plate 6 is removed and cleaned, the middle plate overlapping prefabricated block and the remaining reinforcement of the prefabricated middle longitudinal beam are integrally bound, and the upper row main reinforcement of the middle plate overlapping prefabricated block 601 is connected with the reinforcement connectors 10 one by one.
In this embodiment, the construction method of the prefabricated top plate 19 and the top plate cast-in-situ layer 20 is implemented by referring to the above-mentioned S4-S8, and the difference is that the main rib at the bottom of the prefabricated side wall 5 of the upper layer is connected with the main rib at the top of the prefabricated side wall 5 of the lower layer.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present invention still fall within the scope of the technical solutions of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202411548409.7A CN119266283A (en) | 2024-11-01 | 2024-11-01 | A kind of Yonglin composite assembly station structure and construction method |
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| CN202411548409.7A CN119266283A (en) | 2024-11-01 | 2024-11-01 | A kind of Yonglin composite assembly station structure and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119615967A (en) * | 2025-02-11 | 2025-03-14 | 北京城建设计发展集团股份有限公司 | UHPC-RC composite assembly type subway station and construction method thereof |
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2024
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119615967A (en) * | 2025-02-11 | 2025-03-14 | 北京城建设计发展集团股份有限公司 | UHPC-RC composite assembly type subway station and construction method thereof |
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