CN115142602B - Fully assembled prestress string building cover system - Google Patents
Fully assembled prestress string building cover system Download PDFInfo
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- CN115142602B CN115142602B CN202210858968.2A CN202210858968A CN115142602B CN 115142602 B CN115142602 B CN 115142602B CN 202210858968 A CN202210858968 A CN 202210858968A CN 115142602 B CN115142602 B CN 115142602B
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- 230000007246 mechanism Effects 0.000 claims abstract description 62
- 239000011376 self-consolidating concrete Substances 0.000 claims abstract description 25
- 238000004873 anchoring Methods 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 230000002787 reinforcement Effects 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 239000004567 concrete Substances 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 7
- 238000005056 compaction Methods 0.000 claims description 6
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- 238000005336 cracking Methods 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 4
- 238000009417 prefabrication Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 11
- 239000010410 layer Substances 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
-
- 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
-
- 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
- E04B1/388—Separate connecting elements
-
- 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
- E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention provides a fully assembled prestress string building cover system, relates to the technical field of assembled buildings, and solves the technical problem that a large number of support molds are needed for supporting an assembled building cover in the prior art when the assembled building cover is constructed on site. The device comprises a prefabricated string-stretching floor slab, supporting columns and connecting beams, wherein a plurality of connecting beams and a plurality of supporting columns are connected to form a storey frame, the prefabricated string-stretching floor slab is positioned in the storey frame and connected with the storey frame through a pre-stressing mechanism, and/or the prefabricated string-stretching floor slab is connected with the storey frame through a tensioning mechanism, and two adjacent prefabricated string-stretching floor slabs are connected through tensioning mechanisms; the prestress mechanism is prefabricated on the prefabricated string floorslab, and the end part of the prestress mechanism is connected with the connecting beam through bolts and is connected with the connecting beam through self-compacting concrete pouring; the tensioning mechanism can pass through the prefabricated string floorslab and the connecting beam or can pass through two adjacent prefabricated string floorslabs and be connected by adopting self-compacting concrete pouring.
Description
Technical Field
The invention relates to the technical field of assembled buildings, in particular to a fully assembled prestress tension string floor system.
Background
Building industrialization is a necessary direction of sustainable development of the building industry in China, and is an important way for improving labor productivity, engineering quality and technical progress and realizing transformation and upgrading of the building industry. The implementation of the building industrialization construction technology can greatly reduce the labor, shorten the construction period, improve the working condition of workers and reduce the labor intensity, meets the requirements of 'four sections and one environment protection', is a necessary way for transformation development of building enterprises and building industries in China, and has been developed in China.
The assembled floor system is to manufacture the floor slab in the prefabricated field in advance and then install the floor slab in the construction field. At present, when the assembled floor system is constructed on site, a large number of templates are required to support, so that the workload of construction is increased, and the construction progress is influenced. Moreover, the joint of the plates and the beam or the wall is weak, the structural integrity is poor, the joint is difficult to process, the plate joint is easy to crack and has the water leakage phenomenon, and meanwhile, the thickness of the floor slab is generally larger, so that the net height of the floor is reduced.
Disclosure of Invention
The invention aims to provide a fully assembled prestress string building cover system, which solves the technical problem that a large number of support molds are needed for supporting when an assembled building cover is constructed on site in the prior art. The preferred technical solutions of the technical solutions provided by the present invention can produce a plurality of technical effects described below.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides a fully assembled prestress string-stretching floor system, which comprises a prefabricated string-stretching floor, supporting columns and connecting beams, wherein each side wall of each supporting column can be connected with each connecting beam, a plurality of connecting beams and a plurality of supporting columns are connected to form a floor frame, the prefabricated string-stretching floor is positioned in the floor frame and is connected with the floor frame through a prestress mechanism, and/or the prefabricated string-stretching floor is connected with the floor frame through a tension mechanism, and two adjacent prefabricated string-stretching floors are connected through the tension mechanism;
the prestress mechanism is prefabricated on the prefabricated string floorslab, and the end part of the prestress mechanism is connected with the connecting beam through bolts and is connected with the connecting beam through self-compaction concrete pouring;
the tensioning mechanism can pass through the prefabricated string floorslab and the connecting beam or can pass through two adjacent prefabricated string floorslabs and be connected by adopting self-compacting concrete pouring.
Optionally, the tensioning mechanism is prestressed reinforcement and tensioning anchorage, be provided with pre-buried long sleeve in the prefabricated string floor, pre-buried long sleeve runs through prefabricated string floor, the tie-beam is anchor end prefabricated boundary beam and prefabricated basket beam, prefabricated basket beam is located two between the prefabricated boundary beam of anchor end, be provided with pre-buried first sleeve in the prefabricated basket beam, be provided with pre-buried second sleeve and anchor hole in the prefabricated boundary beam of anchor end, pre-buried second sleeve with the anchor hole is linked together, prestressed reinforcement passes pre-buried second sleeve, a plurality of pre-buried long sleeve with pre-buried first sleeve, prestressed reinforcement's both ends are located two respectively in the anchor hole in the prefabricated boundary beam of anchor end, the tensioning anchorage is located in the anchor hole and with prestressed reinforcement's tip is connected, the tensioning anchorage is used for tensioning prestressed concrete is pour in the anchor hole by oneself.
Optionally, the number of the embedded long sleeves on one prefabricated string floor slab is multiple.
Optionally, the tensioning mechanism is a screw and a nut, an embedded short sleeve is arranged in the prefabricated string floorslab, an inward concave opposite-pull bolt groove is formed in the end face of the prefabricated string floorslab, one end of the embedded short sleeve is communicated with the opposite-pull bolt groove, the other end of the embedded short sleeve is positioned on the side wall of the prefabricated string floorslab, the embedded short sleeves on two adjacent prefabricated string floorslabs are corresponding, the screw penetrates through the two corresponding embedded short sleeves, the end part of the screw is in threaded connection with the nut in the opposite-pull bolt groove, and the opposite-pull bolt groove is plugged by self-compacting concrete;
the connecting beams are anchor end prefabricated side beams and prefabricated flower basket beams, first embedded sleeves are arranged in the prefabricated flower basket beams, two prefabricated string-stretching floor slabs are respectively positioned on two sides of the prefabricated flower basket beams, the short embedded sleeves correspond to the first embedded sleeves, the screw rod sequentially penetrates through the short embedded sleeve, the first embedded sleeve and the short embedded sleeve on one prefabricated string-stretching floor slab, and the other short embedded sleeve on the prefabricated string-stretching floor slab, the end part of the screw rod is in threaded connection with the nuts in the opposite-pulling bolt grooves, and the opposite-pulling bolt grooves are plugged by self-compacting concrete;
be provided with pre-buried second sleeve and anchor hole in the prefabricated boundary beam of anchor end, pre-buried second sleeve with the anchor hole is linked together, pre-buried second sleeve with pre-buried short sleeve is corresponding, the screw rod passes pre-buried second sleeve with pre-buried short sleeve, the one end of screw rod with in the anchor hole nut threaded connection, the other end of screw rod with in the counter-pull bolt groove nut threaded connection, the anchor hole with the counter-pull bolt groove all adopts self-compaction concrete shutoff.
Optionally, the prestressing mechanism includes tip buries, connects ground tackle, cable body, vaulting pole, cable clamp, otic placode buries, first round pin axle and second round pin axle, the otic placode buries prefabrication is in on the prefabricated string floorslab, the number of otic placode buries is a plurality of, the tip buries prefabrication is in the tip of prefabricated string floorslab, the number of tip buries is two, two tip buries and a plurality of otic placode buries all lie in same straight line, tip buries with connect the one end of ground tackle and be connected through first round pin axle, the other end of otic placode buries connection ground tackle with the tip of cable body is connected, the otic placode buries with the one end of vaulting pole is connected through the second round pin axle, the other end of vaulting pole with the cable clamp is connected, the cable body passes the cable clamp, tip buries with the tie beam passes through bolted connection.
Optionally, the tip buries the piece and includes connecting plate, mounting panel, baffle, connection otic placode, anchor reinforcing bar and swash plate, the connecting plate the mounting panel with baffle three fixed connection, the connecting plate with the mounting panel all with the baffle sets up perpendicularly, the connection otic placode with mounting panel fixed connection, the connection otic placode with the one end of connecting the ground tackle is passed through first round pin axle is connected, the anchor reinforcing bar with the swash plate respectively with the opposite both sides of baffle are connected, the swash plate with the connecting plate is connected, the mounting panel the baffle with the anchor reinforcing bar is all connected in the prefabricated string floorslab, the connecting plate protrusion in the terminal surface of prefabricated string floorslab, or, the tip of prefabricated string floorslab is provided with the holding tank, the connecting plate is located in the holding tank.
Optionally, a connecting groove is formed in the connecting plate, when the connecting plate protrudes out of the end face of the prefabricated string floorslab, the connecting beam is a prefabricated superposed side beam and a prefabricated superposed beam, embedded threaded sleeves which are concave inwards are arranged at the top ends of the prefabricated superposed side beam and the prefabricated superposed beam, the connecting plate is located at the top end of the prefabricated superposed side beam or the prefabricated superposed beam, the end part of the prefabricated string floorslab is located at the side face of the prefabricated superposed side beam or the side face of the prefabricated superposed beam, the connecting groove is connected with the embedded threaded sleeves through bolts, and the connecting plate is connected with the prefabricated superposed side beam or the prefabricated superposed beam through self-compacting concrete pouring;
when the connecting plate is located in the holding tank, the connecting beam is a precast beam or a precast side beam, the precast beam or the top end of the precast side beam is provided with an inward concave embedded connecting sleeve, the connecting plate and the end part of the precast string floor slab are both located on the top end of the precast beam or the top end of the precast side beam, the holding tank is connected with the embedded connecting sleeve through bolts, and the holding tank is in the precast superposed side beam or the precast superposed side beam is connected by self-compacting concrete pouring.
Optionally, the otic placode embedded part includes fixed otic placode, fixed plate and fastening reinforcing bar, the fastening reinforcing bar with fixed otic placode is connected respectively the both sides that the fixed plate is relative, fastening reinforcing bar with the fixed plate is all prefabricated on prefabricated string floor, fixed otic placode with the one end of vaulting pole is passed through the second round pin axle is connected.
Optionally, the slab joints between two adjacent prefabricated string floorslabs adopt anti-cracking mortar or waterproof sealant.
Optionally, after the prefabricated string floorslab is installed on the floor frame, a floor frame is formed, equipment pipelines are paved on the lower part of the floor frame, a suspended ceiling is installed, and a facing layer is paved on the upper part of the floor frame.
According to the fully assembled prestress string building cover system, after a floor frame is built by using support columns and connecting beams, a formwork is not required to be built, only the prefabricated string building plates are sequentially placed on the floor frame, then a prestress mechanism and/or a tension mechanism are adopted for mechanical installation, meanwhile, self-compacting concrete is adopted for plugging at the installation position, specifically, the prestress mechanism is prefabricated on the prefabricated string building plates, when the prefabricated string building plates are placed on the floor frame, the end parts of the prestress mechanism are lapped on the connecting beams and can be connected through bolts, and after connection is completed, self-compacting concrete is adopted for plugging; and the tensioning mechanism sequentially passes through the connecting beam and the prefabricated string floorslab when the prefabricated string floorslab is placed on the floor frame, and the two ends of the tensioning mechanism are tensioned, so that the connecting beam and the prefabricated string floorslab are tightly connected, and finally the two ends of the tensioning mechanism are plugged by adopting self-compacting concrete, thereby solving the technical problem that a large number of support molds are required for supporting the assembled floor system in the prior art when the assembled floor system is constructed on site.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of a fully assembled prestress tension string floor system provided by an embodiment of the invention;
fig. 2 is a schematic structural diagram of another angle of the fully assembled prestress tensioning chord floor system according to the embodiment of the invention;
fig. 3 is a schematic structural diagram of a partially-lacking prefabricated string floor in the fully-assembled prestress string floor system provided by the embodiment of the invention;
fig. 4 is a schematic structural diagram of a floor frame of a fully assembled prestress tension string floor system provided by an embodiment of the invention;
FIG. 5 is a top view of a fully assembled prestress tension string floor system provided by an embodiment of the invention;
FIG. 6 is a cross-sectional view of I-I of FIG. 5;
FIG. 7 is an enlarged view of A in FIG. 6;
FIG. 8 is an enlarged view of B in FIG. 6;
fig. 9 is an enlarged view of C in fig. 6;
FIG. 10 is a cross-sectional view of II-II of FIG. 5;
fig. 11 is an enlarged view of D in fig. 10;
fig. 12 is an enlarged view of E in fig. 10;
fig. 13 is an enlarged view of F in fig. 10;
fig. 14 is an enlarged view of L in fig. 1;
fig. 15 is an enlarged view of M in fig. 1;
fig. 16 is an enlarged view of N in fig. 1;
FIG. 17 is a cross-sectional view of III-III of FIG. 5;
fig. 18 is an enlarged view of G in fig. 17;
fig. 19 is an enlarged view of H in fig. 17;
FIG. 20 is an enlarged view of O in FIG. 1;
FIG. 21 is a cross-sectional view of IV-IV of FIG. 5;
fig. 22 is an enlarged view of I in fig. 21;
fig. 23 is an enlarged view of J in fig. 21;
fig. 24 is an enlarged view of P in fig. 1;
FIG. 25 is a cross-sectional view of a fully assembled prestressed tension chord floor system according to an embodiment of the present invention after construction;
FIG. 26 is a schematic structural view of a prefabricated string floor slab with an overhanging connecting plate of a fully assembled prestress string floor system provided by an embodiment of the invention;
fig. 27 is a schematic structural diagram of a prefabricated string floor slab built in a connecting plate of a fully assembled prestress string floor system according to an embodiment of the invention;
FIG. 28 is a schematic view of another angle of a prefabricated string floor slab with an overhanging connecting plate of a fully assembled prestress string floor system provided by an embodiment of the invention;
fig. 29 is a schematic structural view of an end embedded part of a fully assembled prestress tension string floor system provided by an embodiment of the invention;
1, prefabricating a string floorslab; 11. embedding a long sleeve; 12. pre-burying a short sleeve; 13. a split bolt slot; 14. a receiving groove; 15. reinforcing steel bars in the plates; 2. a support column; 3. a prestressing mechanism; 31. an end embedded part; 311. a connecting plate; 3111. a connecting groove; 312. a mounting plate; 313. a baffle plate; 314. connecting an ear plate; 315. anchoring the steel bars; 316. a sloping plate; 32. connecting an anchor; 33. a cable body; 34. a brace rod; 35. a cable clip; 36. an ear plate embedded part; 361. fixing the ear plate; 362. a fixing plate; 363. fastening the steel bar; 37. a first pin; 38. a second pin; 4. a tensioning mechanism; 41. prestress steel bars; 42. stretching an anchor; 43. a screw; 44. a nut; 5. prefabricating side beams at the anchoring end; 51. embedding a second sleeve; 52. an anchor hole; 6. prefabricating a flower basket beam; 61. embedding a first sleeve; 7. prefabricating a superposed side beam; 71. embedding a threaded sleeve; 8. prefabricating a superposed beam; 9. prefabricating a beam; 91. embedding a connecting sleeve; 10. prefabricating side beams; 20. a bolt; 30. an equipment pipeline; 40. installing a suspended ceiling; 50. a facing layer; 60. and (5) a mortar leveling layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
In the description of the present invention, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", etc., refer to an orientation or positional relationship based on that shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
Example 1:
the invention provides a fully assembled prestress string-stretching floor system, which comprises a prefabricated string-stretching floor 1, supporting columns 2 and connecting beams, wherein each side wall of each supporting column 2 can be connected with each connecting beam, a plurality of connecting beams and a plurality of supporting columns 2 are connected to form a floor frame, the prefabricated string-stretching floor 1 is positioned in the floor frame, the prefabricated string-stretching floor 1 is connected with the floor frame through a prestress mechanism 3, and/or the prefabricated string-stretching floor 1 is connected with the floor frame through a tension mechanism 4, and two adjacent prefabricated string-stretching floors 1 are connected through the tension mechanism 4; the pre-stressing mechanism 3 and the tensioning mechanism 4 can be used in a floor frame at the same time, or the pre-stressing mechanism 3 and the tensioning mechanism 4 can be used independently, namely, the pre-stressing mechanism 3 and the tensioning mechanism 4 can be arranged on the same prefabricated string floor slab 1 or on different prefabricated string floor slabs 1. Secondly, the prestress mechanism 3 and the tension mechanism 4 are connected with the connecting beams of the corresponding structures.
The prestress mechanism 3 is prefabricated on the prefabricated string floor slab 1, and the end part of the prestress mechanism 3 is connected with the connecting beam through bolts 20 and is connected by adopting self-compacting concrete pouring;
the tensioning mechanism 4 can pass through the prefabricated string floorslab 1 and the connecting beam or can pass through two adjacent prefabricated string floorslabs 1 and be connected by adopting self-compacting concrete pouring. According to the fully assembled prestress string floor system, after a floor frame is built by using a support column 2 and a connecting beam, a formwork is not required to be built, only the prefabricated string floor 1 is required to be placed on the floor frame in sequence, then a prestress mechanism 3 and/or a tension mechanism 4 are adopted for mechanical installation, meanwhile, self-compacting concrete is adopted for plugging at the installation place, specifically, the prestress mechanism 3 is prefabricated on the prefabricated string floor 1, when the prefabricated string floor 1 is placed on the floor frame, the end part of the prestress mechanism 3 is lapped on the connecting beam and can be connected through bolts 20, and after connection is completed, self-compacting concrete is adopted for plugging; and the tensioning mechanism 4 sequentially passes through the connecting beam and the prefabricated string floorslab 1 when the prefabricated string floorslab 1 is placed on the floor frame, and the two ends of the tensioning mechanism 4 are tensioned to tightly connect the connecting beam with the prefabricated string floorslab and the prefabricated string floorslab, and finally the two ends of the tensioning mechanism 4 are plugged by adopting self-compacting concrete, so that the technical problem that a large number of support molds are required for supporting when the assembled floor slab in the prior art is constructed on site is solved.
Example 2:
as an alternative implementation manner, the tensioning mechanism 4 is a prestressed reinforcement 41 and a tensioning anchorage 42, the pre-buried long sleeve 11 is arranged in the pre-fabricated string floor slab 1, the pre-buried long sleeve 11 penetrates through the pre-fabricated string floor slab 1, the connecting beam is an anchoring end pre-fabricated side beam 5 and a pre-fabricated basket beam 6, the pre-fabricated basket beam 6 is positioned between the two anchoring end pre-fabricated side beams 5, a plurality of pre-fabricated string floor slabs 1 can be placed between the pre-fabricated basket beam 6 and the anchoring end pre-fabricated side beam 5, the pre-fabricated basket beam 6 is internally provided with a pre-buried first sleeve 61, the anchoring end pre-fabricated side beam 5 is internally provided with a pre-buried second sleeve 51 and an anchoring hole 52, the pre-buried second sleeve 51 is communicated with the anchoring hole 52, the numbers of the pre-buried first sleeve 61, the pre-buried second sleeve 51 and the pre-buried long sleeve 11 are consistent, and the positions of the first sleeve 61, the pre-buried second sleeve 51 and the pre-buried long sleeve 11 are in one-to-one correspondence, the prestressed reinforcement 41 passes through the embedded second sleeve 51, the embedded long sleeves 11 and the embedded first sleeve 61, namely, the prestressed reinforcement 41 can pass through the embedded second sleeve 51, the embedded long sleeve 11 and the embedded first sleeve 61 which are positioned on the same central line, two ends of the prestressed reinforcement 41 are respectively positioned in the anchoring holes 52 in the two anchoring end precast side beams 5, the tension anchor 42 is positioned in the anchoring holes 52 and connected with the end parts of the prestressed reinforcement 41, the tension anchor 42 is used for tensioning the prestressed reinforcement 41, the tension anchor 42 can tension the prestressed reinforcement 41, thereby the precast flower basket beam 6 and the precast string floor slab 1, the anchoring end precast side beams 5 and the precast string floor slab 1 can be closely jointed, and anti-cracking mortar or waterproof sealant can be adopted at the joint, the tensioning anchor 42 is poured into the anchor hole 52 by self-compacting concrete, and after the tensioning anchor 42 is tensioned, the anchor hole 52 is plugged by self-compacting concrete, so that the tensioning mechanism 4 is hidden in the prefabricated string floor slab 1 and the connecting beam, and the later tensioning mechanism 4 is prevented from being damaged.
As an alternative embodiment, the number of the embedded long sleeves 11 on one prefabricated string floor slab 1 is a plurality of. When the length direction of the embedded long sleeve 11 is consistent with the width direction of the prefabricated string floorslab 1, the length of the embedded long sleeve 11 is equal to the width of the prefabricated string floorslab 1, and all the embedded long sleeves 11 are distributed along the length direction of the prefabricated string floorslab 1. Or when the length direction of the embedded long sleeve 11 is consistent with the length direction of the prefabricated string floorslab 1, the length of the embedded long sleeve 11 is equal to the length of the prefabricated string floorslab 1, and all the embedded long sleeves 11 are distributed along the width direction of the prefabricated string floorslab 1.
Example 3:
as an alternative implementation manner, the tensioning mechanism 4 is a screw 43 and a nut 44, the prefabricated string floorslab 1 is internally provided with an embedded short sleeve 12, the end surface of the prefabricated string floorslab 1 is provided with an inward concave split bolt groove 13, one end of the embedded short sleeve 12 is communicated with the split bolt groove 13, the other end of the embedded short sleeve 12 is positioned on the side wall of the prefabricated string floorslab 1, namely, the embedded short sleeve 12 does not penetrate through the prefabricated string floorslab 1, the embedded short sleeves 12 on two adjacent prefabricated string floorslabs 1 correspond, the screw 43 penetrates through the two corresponding embedded short sleeves 12, the end parts of the screw 43 are in threaded connection with the nut 44 in the split bolt groove 13, the split bolt groove 13 is plugged by adopting self-compacting concrete, so that the screw 43 and the nut 44 are hidden, and the screw 43 and the nut 44 are prevented from being damaged in the later stage;
the connecting beams are an anchor end prefabricated side beam 5 and a prefabricated flower basket beam 6, the prefabricated flower basket beam 6 is internally provided with a pre-buried first sleeve 61, two prefabricated string-stretching floor slabs 1 are respectively positioned at two sides of the prefabricated flower basket beam 6, the pre-buried short sleeves 12 correspond to the pre-buried first sleeve 61, a screw 43 sequentially penetrates through the pre-buried short sleeve 12, the pre-buried first sleeve 61 and the pre-buried short sleeve 12 on one prefabricated string-stretching floor slab 1, the end part of the screw 43 is in threaded connection with a nut 44 in a split bolt groove 13, and the split bolt groove 13 is plugged by self-compacting concrete;
an embedded second sleeve 51 and an anchoring hole 52 are arranged in the anchoring end prefabricated side beam 5, the embedded second sleeve 51 is communicated with the anchoring hole 52, the embedded second sleeve 51 corresponds to the embedded short sleeve 12, a screw 43 penetrates through the embedded second sleeve 51 and the embedded short sleeve 12, one end of the screw 43 is in threaded connection with a nut 44 in the anchoring hole 52, the other end of the screw 43 is in threaded connection with a nut 44 in the split bolt groove 13, and the anchoring hole 52 and the split bolt groove 13 are plugged by self-compacting concrete.
The number of the embedded short sleeves 12 and the opposite-pull bolt grooves 13 on the prefabricated string floorslab 1 is multiple, the numbers of the embedded short sleeves 12 and the opposite-pull bolt grooves 13 are the same, the embedded short sleeves 12 are distributed at two opposite ends of the prefabricated string floorslab 1, the embedded short sleeves 12 correspond to the embedded first sleeves 61 in position, and the embedded short sleeves 12 correspond to the embedded second sleeves 51 in position. The screw 43 connects two or three separate members, and the pre-stressing rebar 41 connects multiple members.
Example 4:
as an alternative embodiment, the prestressing mechanism 3 includes an end embedded part 31, a connecting anchor 32, a cable body 33, a supporting rod 34, a cable clamp 35, an ear plate embedded part 36, a first pin shaft 37 and a second pin shaft 38, the ear plate embedded part 36 is prefabricated on the prefabricated string floorslab 1, the number of the ear plate embedded parts 36 is multiple, the end embedded parts 31 are prefabricated at the end of the prefabricated string floorslab 1, the number of the end embedded parts 31 is two, the two end embedded parts 31 and the plurality of ear plate embedded parts 36 are all located on the same straight line, one end of the end embedded part 31 is connected with one end of the connecting anchor 32 through the first pin shaft 37, the other end of the ear plate embedded part 36 connected with one end of the cable body 33 is connected with one end of the supporting rod 34 through the second pin shaft 38, the other end of the supporting rod 34 is connected with the cable clamp 35, the cable body 33 passes through the cable clamp 35, and the end embedded part 31 is connected with the connecting beam through the bolt 20. The prefabricated string floorslab 1, the end embedded part 31, the ear plate embedded part 36 and the embedded long sleeve 11 are integrally cast and formed, or the prefabricated string floorslab 1, the end embedded part 31, the ear plate embedded part 36, the embedded short sleeve 12 and the split bolt groove 13 are integrally cast and formed, the prefabricated string floorslab 1 is internally provided with the steel bar 15 in the slab, the prestressed cable body 33 at the lower part of the prefabricated string floorslab 1 is generally tensioned in a factory, and the tensioning installation can be carried out on a construction site. The tensioning step of the rope body 33 is as follows: firstly, a vertical stay bar 34 is installed through an ear plate embedded part 36, a cable clamp 35 is installed at the lower part of the stay bar 34, a cable body 33 is fixed on a connecting ear plate 314 of an end part embedded part 31 through a connecting anchor device 32, the cable body 33 is fixed on the stay bar 34 through a locking clamp 35, tensioning of the cable body 33 is carried out after installation is completed, and the tensioning is carried out by adopting special hydraulic equipment, so that the production of the prefabricated string floor slab 1 is completed after a preset tensioning value is reached.
The number of the prestressing mechanisms 3 on one prefabricated string floor slab 1 can be multiple, the length direction of the prestressing mechanisms 3 can be consistent with the length direction of the prefabricated string floor slab 1, or the length direction of the prestressing mechanisms 3 can be consistent with the width direction of the prefabricated string floor slab 1.
As an alternative embodiment, the end embedded part 31 includes a connecting plate 311, a mounting plate 312, a baffle 313, a connecting lug plate 314, an anchor bar 315 and an inclined plate 316, the connecting plate 311, the mounting plate 312 and the baffle 313 are fixedly connected, the connecting plate 311 and the mounting plate 312 are all vertically arranged with the baffle 313, the connecting lug plate 314 is fixedly connected with the mounting plate 312, one end of the connecting lug plate 314, which is connected with one end of the connecting anchor 32 through a first pin shaft 37, the anchor bar 315 and the inclined plate 316 are respectively connected with two opposite sides of the baffle 313, the inclined plate 316 is connected with the connecting plate 311, the mounting plate 312, the baffle 313 and the anchor bar 315 are all connected in the prefabricated string floorslab 1, the connecting plate 311 protrudes out of the end face of the prefabricated string floorslab 1, or the end of the prefabricated string floorslab 1 is provided with a containing groove 14, and the connecting plate 311 is located in the containing groove 14.
As an alternative implementation manner, when the connecting plate 311 protrudes from the end face of the prefabricated laminated side beam 7 or the prefabricated laminated beam 8, the connecting plate 311 is provided with a connecting groove 3111, the connecting beam is a prefabricated laminated side beam 7 and a prefabricated laminated beam 8, the top ends of the prefabricated laminated side beam 7 and the prefabricated laminated beam 8 are respectively provided with an inward concave embedded thread sleeve 71, the connecting plate 311 is positioned on the top end of the prefabricated laminated side beam 7 or the prefabricated laminated beam 8, the end of the prefabricated laminated side beam 1 is positioned on the side face of the prefabricated laminated side beam 7 or the prefabricated laminated beam 8, the connecting groove 3111 is connected with the embedded thread sleeve 71 through a bolt 20, the connecting plate 311 is connected with the prefabricated laminated side beam 7 or the prefabricated laminated beam 8 by adopting self-compacting concrete pouring, so as to seal the bolt 20, and the top ends of the prefabricated laminated side beam 7 and the prefabricated laminated beam 8 are respectively provided with stirrups, so that the stirrups can block the end of the prefabricated laminated side beam 1, so that the end of the prefabricated laminated side beam 7 or the prefabricated laminated beam 8 can not be positioned on the top of the prefabricated laminated side beam 7 or the prefabricated laminated beam 8, and the end face of the prefabricated laminated side beam 1 is required to be placed on the prefabricated laminated side beam 7 or the top of the prefabricated laminated side beam 8;
when the connecting plate 311 is located in the accommodating groove 14, the connecting beam is a precast beam 9 or a precast side beam 10, the top ends of the precast beam 9 or the precast side beam 10 are respectively provided with an inward concave embedded connecting sleeve 91, the end parts of the connecting plate 311 and the precast string floor slab 1 are respectively located on the top ends of the precast beam 9 or the precast side beam 10, the connecting groove 3111 is connected with the embedded connecting sleeve 91 through a bolt 20, and the accommodating groove 14 is connected on the precast superposed side beam 7 or the precast superposed beam 8 by adopting self-compacting concrete pouring, so that the bolt 20 is blocked.
The brace 34 may be in the form of a vertical brace or may be in the form of a truss. The rope body 33 can be a steel wire bundle, a steel strand, a steel wire rope, a steel pull rod and the like. The connection anchor 32 or tension anchor 42 may be a hot cast anchor, a cold cast anchor, a clip anchor, a press anchor, an extrusion anchor, a stainless steel zip anchor, a UU steel tie rod anchor, or the like. The cable clips 35 may take the form of spherical cable clips, cylindrical node form cable clips 35 or other forms.
As an alternative embodiment, the ear plate embedded member 36 includes a fixed ear plate 361, a fixed plate 362 and a fastening bar 363, the fastening bar 363 and the fixed ear plate 361 are respectively connected to opposite sides of the fixed plate 362, the fastening bar 363 and the fixed plate 362 are both prefabricated on the prefabricated string floorslab 1, and the fixed ear plate 361 is connected to one end of the stay 34 through the second pin 38.
As an alternative embodiment, the slab joints between two adjacent prefabricated string floorslabs 1 are made of anti-cracking mortar or waterproof sealant. The connection between the prefabricated string floorslab 1 and the beam or the wall is that the end part of the prefabricated string floorslab 1 extends outwards or is internally provided with a connecting plate 311, and the end part of the prefabricated string floorslab 1 can be connected through bolts, so that the end part of the prefabricated string floorslab 1 extends outwards through reinforcing steel bars, and the prefabricated string floorslab is poured into a main body structure after being in a reinforcing steel bar lap joint mode to form a whole.
Example 5:
as an alternative embodiment, after the prefabricated string floor 1 is installed on the floor frame, a floor frame is formed, the equipment pipeline 30 and the installation suspended ceiling 40 are laid on the lower portion of the floor frame, the finishing layer 50 is laid on the upper portion of the floor frame, and the mortar leveling layer 60 can be laid between the finishing layer 50 and the floor frame.
Example 6:
the invention provides a template-free support-free full-dry floor system, which can be simultaneously suitable for general civil buildings and large-span heavy-load industrial buildings, adopts a prestress technology, fully exerts the advantages of two materials of steel ropes and concrete, greatly enhances the rigidity of a floor slab, improves the spanning capacity and the load bearing capacity of the floor slab, solves the node connection problem of the traditional dry floor system, improves the connection reliability, is convenient to install, simultaneously reduces the weight of components, saves the material consumption and saves the cost.
The fully assembled prestress string building cover system is applied to an assembled concrete frame structure, can be applied to an assembled concrete shear wall structure or other structural systems, can be applied to a steel structural system or other structural systems, and is also applied to the protection scope of the invention when being applied to other systems.
The invention has the advantages that: the form of the prefabricated string floorslab 1 adopts the external prestressing technology to be combined with concrete, so that the advantages of two materials, namely rigid and flexible, are fully exerted; the node structure of the prefabricated string floorslab 1 connected with the beam or the wall is divided into dry bolt connection and post-pouring connection; the joint structure between the prefabricated string floorslab 1 and the prefabricated string floorslab 1 is divided into a bolt connection and a connection of a through prestressed reinforcement.
The product has the advantages that: the prestress technology is adopted, the stress is reasonable, the advantages of steel and concrete materials are fully exerted, the bearing capacity is strong, the rigidity is high, and the prestress type concrete composite material is applicable to common civil buildings and industrial buildings with large spans and heavy loads; compared with the common floor slab, the concrete consumption can be greatly reduced, the single-layer reinforcing steel bar net is used, the consumption of reinforcing steel bars is saved, and the cost is saved; the production of an automatic factory can be realized, the production efficiency is high, and the labor is saved; the standardization degree is high, different moduli can be freely combined, and the method is applicable to different spans and house rooms; the full-dry construction process can realize on-site support-free template-free, mechanical dry connection, is simple and convenient to install and saves labor; the construction speed is high, the construction period is greatly shortened, pouring operation is not needed, the upper layer construction is not influenced, the site environment is good, and environmental protection is facilitated; the components are light in weight, easy to transport and hoist, and cost-saving; the pipeline separation can be realized, the space is saved, and the later detection and maintenance are convenient; reliable fireproof and fireproof treatment, good durability and the service life of the building; the water and the material are saved, the energy is saved, the environment is protected, and the development direction of national 'carbon reaching peak and carbon neutralization' is met.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A fully assembled prestress string floor system is characterized by comprising a prefabricated string floor (1), a support column (2) and a connecting beam, wherein,
each side wall of the support column (2) can be connected with the connecting beam, a plurality of connecting beams and a plurality of support columns (2) are connected to form a floor frame, the prefabricated string-stretching floor slab (1) is positioned in the floor frame, the prefabricated string-stretching floor slab (1) is connected with the floor frame through a pre-stressing mechanism (3), and/or the prefabricated string-stretching floor slab (1) is connected with the floor frame through a tensioning mechanism (4), and two adjacent prefabricated string-stretching floor slabs (1) are connected through the tensioning mechanism (4);
the prestress mechanism (3) is prefabricated on the prefabricated string floorslab (1), and the end part of the prestress mechanism (3) is connected with the connecting beam through a bolt (20) and is connected with the connecting beam through self-compaction concrete pouring;
the tensioning mechanism (4) can pass through the prefabricated string floorslab (1) and the connecting beam or can pass through two adjacent prefabricated string floorslabs (1) and be connected by adopting self-compaction concrete pouring;
the pre-stressing mechanism (3) comprises an end embedded part (31), a connecting anchor (32), a rope body (33), a supporting rod (34), a rope clamp (35), an ear plate embedded part (36), a first pin shaft (37) and a second pin shaft (38), wherein the ear plate embedded part (36) is prefabricated on the prefabricated string-stretching floor (1), the number of the ear plate embedded parts (36) is multiple, the end embedded part (31) is prefabricated at the end part of the prefabricated string-stretching floor (1), the number of the end embedded part (31) is two, two end embedded parts (31) and a plurality of the ear plate embedded parts (36) are all positioned on the same straight line, the end embedded part (31) is connected with one end of the connecting anchor (32) through the first pin shaft (37), the other end of the ear plate embedded part (36) is connected with the end part of the rope body (33), the ear plate embedded part (36) is prefabricated with the end part of the prefabricated string-stretching floor (1), the end embedded part (31) is connected with the supporting rod (35) through the supporting rod (35), and the end embedded part (35) is connected with the rope clamp (35).
2. The fully assembled prestressed cable floor system as claimed in claim 1, wherein the tensioning mechanism (4) is a prestressed reinforcement (41) and a tensioning anchor (42), an embedded long sleeve (11) is arranged in the prefabricated cable floor (1), the embedded long sleeve (11) penetrates through the prefabricated cable floor (1), the connecting beam is an anchored end prefabricated side beam (5) and a prefabricated basket beam (6), the prefabricated basket beam (6) is positioned between the two anchored end prefabricated side beams (5), an embedded first sleeve (61) is arranged in the prefabricated basket beam (6), an embedded second sleeve (51) and an anchoring hole (52) are arranged in the anchored end prefabricated side beam (5), the embedded second sleeve (51) is communicated with the anchoring hole (52), the prestressed reinforcement (41) penetrates through the second sleeve (51), a plurality of embedded long sleeves (11) and the first embedded sleeve (61), the prestressed reinforcement (41) is positioned in the two ends (41) and is positioned in the prestressed reinforcement (41) and is connected with the anchoring hole (42), the tensioning anchor (42) is poured in the anchor hole (52) with self-compacting concrete.
3. The fully assembled prestress string floor system according to claim 2, characterized in that the number of the embedded long sleeves (11) on one prefabricated string floor slab (1) is a plurality.
4. The fully assembled prestress tensioning system as claimed in claim 1, wherein the tensioning mechanism (4) is a screw rod (43) and a nut (44), an embedded short sleeve (12) is arranged in the prefabricated tensioning floor slab (1), an inward concave split bolt groove (13) is arranged on the end face of the prefabricated tensioning floor slab (1), one end of the embedded short sleeve (12) is communicated with the split bolt groove (13), the other end of the embedded short sleeve (12) is positioned on the side wall of the prefabricated tensioning floor slab (1), the embedded short sleeves (12) on two adjacent prefabricated tensioning floor slabs (1) are corresponding, the screw rods (43) penetrate through the two corresponding embedded short sleeves (12) and the end parts of the screw rods (43) are in threaded connection with the nut (44) in the split bolt groove (13), and the split bolt groove (13) is plugged by self-compacting concrete;
the connecting beams are anchor end prefabricated side beams (5) and prefabricated flower basket beams (6), an embedded first sleeve (61) is arranged in each prefabricated flower basket beam (6), two prefabricated string-stretching floor slabs (1) are respectively positioned on two sides of each prefabricated flower basket beam (6), the embedded short sleeves (12) correspond to the embedded first sleeve (61), a screw rod (43) sequentially penetrates through the embedded short sleeve (12) on one prefabricated string-stretching floor slab (1), the embedded first sleeve (61) and the embedded short sleeve (12) on the other prefabricated string-stretching floor slab (1), the end part of the screw rod (43) is in threaded connection with the nuts (44) in the opposite-pulling bolt grooves (13), and the opposite-pulling bolt grooves (13) are plugged by self-compacting concrete;
be provided with pre-buried second sleeve (51) and anchor hole (52) in anchor end prefabrication boundary beam (5), pre-buried second sleeve (51) with anchor hole (52) are linked together, pre-buried second sleeve (51) with pre-buried short sleeve (12) are corresponding, screw rod (43) are passed pre-buried second sleeve (51) with pre-buried short sleeve (12), one end of screw rod (43) with nut (44) threaded connection in anchor hole (52), the other end of screw rod (43) with nut (44) threaded connection in to draw bolt groove (13), anchor hole (52) with to draw bolt groove (13) all adopt self-compaction concrete shutoff.
5. The fully assembled prestress tensioning floor system according to claim 1, wherein the end embedded part (31) comprises a connecting plate (311), a mounting plate (312), a baffle plate (313), a connecting lug plate (314), an anchoring reinforcing steel bar (315) and a sloping plate (316), the connecting plate (311), the mounting plate (312) and the baffle plate (313) are fixedly connected, the connecting plate (311) and the mounting plate (312) are vertically arranged with the baffle plate (313), the connecting lug plate (314) is fixedly connected with the mounting plate (312), one ends of the connecting lug plate (314) and the connecting anchor (32) are connected with one end of the connecting anchor (32) through the first pin shaft (37), the anchoring reinforcing steel bar (315) and the sloping plate (316) are respectively connected with two opposite sides of the baffle plate (313), the sloping plate (316) is connected with the connecting plate (311), the mounting plate (312), the baffle plate (313) and the anchoring steel bar (315) are respectively connected with the prefabricated floor slab (1), the prefabricated floor slab (1) is provided with a prefabricated floor (14) or a prefabricated floor slab (1), the connecting plate (311) is positioned in the accommodating groove (14).
6. The fully assembled prestress wire girder system according to claim 5, characterized in that a connecting groove (3111) is arranged on the connecting plate (311), when the connecting plate (311) protrudes out of the end face of the prefabricated wire girder (1), the connecting beam is a prefabricated superposed side beam (7) and a prefabricated superposed beam (8), embedded threaded sleeves (71) which are recessed inwards are arranged at the top ends of the prefabricated superposed side beam (7) and the prefabricated superposed beam (8), the connecting plate (311) is arranged on the top end of the prefabricated superposed side beam (7) or the prefabricated superposed beam (8), the end part of the prefabricated wire girder (1) is arranged on the side face of the prefabricated superposed side beam (7) or the prefabricated superposed beam (8), the connecting groove (3111) and the embedded threaded sleeves (71) are connected through bolts (20), and the connecting plate (311) is connected by self-compaction pouring on the prefabricated superposed side beam (7) or the prefabricated superposed beam (8);
when connecting plate (311) are located in holding tank (14), the connecting beam is precast beam (9) or precast boundary beam (10), precast beam (9) or precast boundary beam (10)'s top all is provided with embedded connecting sleeve (91) of inwards sunken, connecting plate (311) with precast string floor (1)'s tip all is located precast beam (9) or precast boundary beam (10) on the top, connecting tank (3111) with embedded connecting sleeve (91) are connected through bolt (20), holding tank (14) are in precast coincide boundary beam (7) or precast coincide roof beam (8) are gone up and are adopted from the compact concrete to pour to connect.
7. The fully assembled prestress tensioning floor system according to claim 1, wherein the ear plate embedded part (36) comprises a fixed ear plate (361), a fixed plate (362) and fastening steel bars (363), the fastening steel bars (363) and the fixed ear plate (361) are respectively connected to two opposite sides of the fixed plate (362), the fastening steel bars (363) and the fixed plate (362) are prefabricated on the prefabricated tensioning floor (1), and the fixed ear plate (361) is connected with one end of the supporting rod (34) through the second pin shaft (38).
8. The fully assembled prestress tensioning chord floor system according to claim 1, characterized in that a slab joint between two adjacent prefabricated tensioning chord floors (1) adopts anti-cracking mortar or waterproof sealant.
9. Fully assembled prestressed girder system according to claim 1, characterized in that after the installation of the prefabricated girder (1) on the floor frame, a floor frame is formed, the lower part of which is laid with equipment lines (30) and suspended ceilings (40) are installed, and the upper part of which is laid with a finishing layer (50).
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| CN116043999A (en) * | 2022-12-27 | 2023-05-02 | 中建科技集团有限公司 | Dry-method connection full-assembled concrete frame structure system and assembly method |
| CN117027498B (en) * | 2023-10-10 | 2023-12-08 | 福建建工装配式建筑研究院有限公司 | Residential building structure with floor system free of supporting and construction method thereof |
| CN118148157B (en) * | 2024-05-09 | 2024-08-13 | 上海巨鲲科技有限公司 | Foundation pit beam string structure and assembly method |
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| CN1524149A (en) * | 2001-06-05 | 2004-08-25 | 邦那契梁柱(国际)控股有限公司 | Building structural element |
| KR20130040652A (en) * | 2011-10-14 | 2013-04-24 | 이석 | Precast concrete frame and its construction method for buildings using precast concrete slab continued by post tensioning |
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