CN113026988A - Prefabricated assembled structure and prefabricated assembled structure's connected node - Google Patents
Prefabricated assembled structure and prefabricated assembled structure's connected node Download PDFInfo
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- CN113026988A CN113026988A CN202110306173.6A CN202110306173A CN113026988A CN 113026988 A CN113026988 A CN 113026988A CN 202110306173 A CN202110306173 A CN 202110306173A CN 113026988 A CN113026988 A CN 113026988A
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- 239000004567 concrete Substances 0.000 claims abstract description 178
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 239000011178 precast concrete Substances 0.000 claims description 19
- 238000010276 construction Methods 0.000 abstract description 13
- 239000011440 grout Substances 0.000 description 23
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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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
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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
- E04B1/4114—Elements with sockets
- E04B1/4121—Elements with sockets with internal threads or non-adjustable captive nuts
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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
- E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
- E04B1/6108—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
- E04B1/612—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces
- E04B1/6125—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces with protrusions on the one frontal surface co-operating with recesses in the other frontal surface
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to a prefabricated structure and a connecting node of the prefabricated structure, wherein the connecting node of the prefabricated structure comprises a lower concrete structure and an upper concrete prefabricated part positioned at the upper end of the lower concrete structure, a plurality of first connecting pieces are arranged at the bottom of the upper concrete prefabricated part along the horizontal longitudinal direction, a plurality of second connecting pieces are arranged at the top of the lower concrete structure along the horizontal longitudinal direction and are detachably and fixedly connected with the plurality of first connecting pieces at the bottom of the upper concrete prefabricated part correspondingly for realizing the vertical connection between the upper concrete prefabricated part and the lower concrete structure. The prefabricated structure comprises a lower concrete structure and a plurality of upper concrete prefabricated components which are longitudinally and sequentially spliced along the lower concrete structure, and the longitudinal splicing end faces of two adjacent upper concrete prefabricated components are in tenon-and-mortise matched connection. The invention has high on-site construction efficiency, can effectively shorten the construction period and can improve the integrity of the assembled structure and the building quality.
Description
Technical Field
The invention belongs to the technical field of constructional engineering, and particularly relates to a prefabricated structure and a connection node of the prefabricated structure.
Background
The side wall structure at the present stage is mostly constructed by cast-in-place reinforced concrete, the construction operation environment is poor, the process is complex, the speed is slow, the influence of various weather and climate is large, the construction quality is influenced by various factors and is difficult to ensure, and meanwhile, a lot of waste building waste is generated in the construction process, thereby wasting resources and polluting the environment.
In order to solve the problems existing in cast-in-place construction, an assembly type structure is adopted at present, prefabricated components are transported to the site to be assembled, and the construction operation efficiency and the component construction quality are improved. Therefore, the prefabricated structure and the connection node of the prefabricated structure are urgently needed to be designed in the field to realize the assembly of the side wall structure.
Disclosure of Invention
The invention provides a prefabricated structure and a connecting node of the prefabricated structure, which can at least solve part of defects in the prior art.
The technical scheme of the invention is realized as follows: the invention discloses a prefabricated structure connecting node which comprises a lower concrete structure and an upper concrete prefabricated part positioned at the upper end of the lower concrete structure, wherein a plurality of first connecting pieces are horizontally and longitudinally arranged at the bottom of the upper concrete prefabricated part, a plurality of second connecting pieces are horizontally and longitudinally arranged at the top of the lower concrete structure, and the connecting node is detachably and fixedly connected with the plurality of first connecting pieces at the bottom of the upper concrete prefabricated part and used for realizing the vertical connection between the upper concrete prefabricated part and the lower concrete structure.
Furthermore, a rear cast-in-place structure is poured between the bottom end of the upper concrete prefabricated part and the top end of the lower concrete structure; the lower concrete structure is a precast concrete piece or a cast-in-place concrete piece.
Furthermore, the first connecting piece comprises a pre-embedded assembly pre-embedded in the upper concrete prefabricated part and a first connecting plate fully or partially exposed at the bottom end of the upper concrete prefabricated part, the pre-embedded assembly of the first connecting piece is fixedly connected with the first connecting plate, the second connecting piece comprises a pre-embedded assembly pre-embedded in the lower concrete structure and a second connecting plate fully or partially exposed at the top end of the lower concrete structure, and the pre-embedded assembly of the second connecting piece is fixedly connected with the second connecting plate; bolt holes are formed in the first connecting plate of the first connecting piece and the second connecting plate of the second connecting piece at intervals in the vertical direction, and the first connecting plate of the first connecting piece is fixedly connected with the second connecting plate of the second connecting piece through bolts.
Furthermore, the first connecting plate and the second connecting plate both comprise main plates, and bolt holes are formed in the main plates at intervals in the vertical direction; the first connecting plate and the second connecting plate also comprise bottom plates, the bottom plates are horizontal, and the main plates are vertically fixed on the bottom plates; the embedded component comprises vertical anchor bars extending in the vertical direction, and the vertical anchor bars are fixed on the bottom plate.
Further, a side wing plate is fixed on one side of the main plate of the first connecting plate, the other side of the main plate of the first connecting plate is in contact with one side of the main plate of the corresponding second connecting plate and is fixedly connected with the main plate of the second connecting plate through a bolt, and the side wing plate is fixed on the other side of the main plate of the second connecting plate.
Furthermore, a stiffening plate is fixed between two main plates which are arranged at intervals along the horizontal longitudinal direction in the main plates of the first connecting piece or the second connecting piece; the stiffening plate and the main plates respectively fixed with the two sides of the stiffening plate are fixedly connected with the same bottom plate.
Furthermore, the upper precast concrete component is provided with a post-cast concrete circulation hole which extends along the vertical direction and penetrates through the upper end and the lower end of the upper precast concrete component.
The invention discloses a prefabricated structure, which comprises a lower concrete structure and a plurality of upper concrete prefabricated components which are sequentially spliced in the longitudinal direction of the lower concrete structure, wherein the longitudinal splicing end faces of two adjacent upper concrete prefabricated components are in mortise and tenon matched connection, and the upper concrete prefabricated components and the lower concrete structure are connected in the vertical direction by adopting the connecting node structure.
Furthermore, a second grouting hole and a second grouting channel communicated with the second grouting hole are formed in the upper concrete prefabricated component, the second grouting hole extends horizontally and longitudinally and penetrates through the longitudinal splicing end face of the upper concrete prefabricated component, horizontal longitudinal steel bars extending horizontally and longitudinally are arranged in the upper concrete prefabricated component, the horizontal longitudinal steel bars in the upper concrete prefabricated component extend into the second grouting hole, the other end of each horizontal longitudinal steel bar extends out of the longitudinal splicing end face of the upper concrete prefabricated component and correspondingly extends into the second grouting holes of the adjacent upper concrete prefabricated components, and a sleeve grouting connection node is formed.
Further, a third connecting plate is correspondingly fixed on the longitudinal splicing end faces of two adjacent upper concrete prefabricated components, a bolt through hole is formed in the third connecting plate, and the third connecting plates of the longitudinal splicing end faces of the two adjacent upper concrete prefabricated components are fixedly connected through a bolt; and the third connecting plate is fixedly connected with a pre-embedded assembly pre-embedded in the upper concrete prefabricated part.
The invention has at least the following beneficial effects:
the prefabricated concrete structure comprises a lower concrete structure and an upper prefabricated concrete component positioned at the upper end of the lower concrete structure, wherein a plurality of first connecting pieces are arranged at the bottom of the upper prefabricated concrete component along the horizontal longitudinal direction, a plurality of second connecting pieces are arranged at the top of the lower concrete structure along the horizontal longitudinal direction, and the plurality of second connecting pieces are detachably and fixedly connected with the plurality of first connecting pieces at the bottom of the upper prefabricated concrete component correspondingly and are used for realizing the vertical connection between the upper prefabricated concrete component and the lower concrete structure. By adopting the scheme, the prefabricated concrete component provided by the invention adopts a prefabricated form and is assembled after being transported to a site, so that the production efficiency can be improved, the building quality can be improved, the labor force can be saved, the size of the prefabricated concrete component is standardized, the industrialization is facilitated, the strength of a connecting node between the upper prefabricated concrete component and the lower concrete structure can be improved, and the integrity of an assembled structure and the building quality can be improved; and the assembly precision and the site operation efficiency are high, and the construction period can be effectively shortened.
The two adjacent upper concrete prefabricated parts provided by the invention are connected and positioned in a mortise-tenon matching mode and are connected through the connecting plate, so that the structural strength and structural integrity of the longitudinal connecting node of the upper concrete prefabricated parts are improved, the assembling precision and the on-site construction efficiency are high, the construction period can be effectively shortened, the strength and the construction quality of the connecting node of the side wall of the station can be effectively improved, and the engineering quality and the operation safety of an assembled structure such as an assembled underground station are ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a connection node of a prefabricated structure according to an embodiment of the present invention;
FIG. 2 is a schematic longitudinal sectional view of a prefabricated construction type connection node according to an embodiment of the present invention;
FIG. 3 is a schematic longitudinal cross-sectional view of a prefabricated structural connection node according to another embodiment of the present invention;
FIG. 4 is a schematic view showing the longitudinal connection of two adjacent upper precast concrete members according to the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
fig. 6 is a sectional view taken along line B-B in fig. 4.
In the attached drawing, 1 is concrete structure down, 2 is the prefabricated component of upper concrete, 21 is post-cast concrete runner hole, 3 is first connecting piece, 4 is the second connecting piece, 5 is first connecting plate, 6 is the second connecting plate, 7 is the mainboard, 8 is the bottom plate, 9 is the stiffening plate, 10 is vertical anchor rod, 11 is the third connecting plate, 12 is horizontal anchor rod, 13 is the steel backing plate, 14 is the grout sleeve, 15 is horizontal longitudinal reinforcement, 16 is first vertical reinforcing bar, 17 is the second vertical reinforcing bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, the meaning of "plurality" or "a plurality" is two or more unless otherwise specified.
Example one
Referring to fig. 1 and 2, the embodiment of the invention provides a prefabricated structure connection node, which comprises a lower concrete structure 1 and an upper concrete prefabricated component 2 positioned at the upper end of the lower concrete structure 1, wherein the bottom of the upper concrete prefabricated component 2 is provided with a plurality of first connecting pieces 3 along the horizontal longitudinal direction, the top of the lower concrete structure 1 is provided with a plurality of second connecting pieces 4 along the horizontal longitudinal direction, and the second connecting pieces are detachably and fixedly connected with the plurality of first connecting pieces 3 at the bottom of the upper concrete prefabricated component 2 correspondingly and used for realizing the vertical connection between the upper concrete prefabricated component 2 and the lower concrete structure 1.
Furthermore, a rear cast-in-place structure is poured between the bottom end of the upper concrete prefabricated part 2 and the top end of the lower concrete structure 1.
Further, the first connecting piece 3 comprises a pre-embedded assembly pre-embedded in the upper concrete prefabricated part 2 and a first connecting plate 5 fully or partially exposed at the bottom end of the upper concrete prefabricated part 2, the pre-embedded assembly of the first connecting piece 3 is fixedly connected with the first connecting plate 5, the second connecting piece 4 comprises a pre-embedded assembly pre-embedded in the lower concrete structure 1 and a second connecting plate 6 fully or partially exposed at the top end of the lower concrete structure 1, and the pre-embedded assembly of the second connecting piece 4 is fixedly connected with the second connecting plate 6; bolt holes are formed in the first connecting plate 5 of the first connecting piece 3 and the second connecting plate 6 of the second connecting piece 4 at intervals in the vertical direction, and the first connecting plate 5 of the first connecting piece 3 is fixedly connected with the second connecting plate 6 of the second connecting piece 4 through bolts.
Further, the first connecting plate 5 and the second connecting plate 6 both comprise a main plate 7, and bolt holes are formed in the main plate 7 at intervals in the vertical direction; the first connecting plate 5 and the second connecting plate 6 further comprise a bottom plate 8, the bottom plate 8 is horizontal, and the main plate 7 is vertically fixed on the bottom plate 8; the embedded component comprises vertical anchor bars 10 extending in the vertical direction, and the vertical anchor bars 10 are fixedly connected with the bottom plate 8.
The anchor bars and the main plate are respectively positioned at the upper side and the lower side of the bottom plate; and a plurality of anchor bars are fixed on each bottom plate.
The anchor bars are vertically fixed on the bottom plate. The bottom plate is pre-embedded in the upper concrete prefabricated part 2 or the lower concrete structure 1.
Further, a side wing plate is fixed to one main plate side of the first connecting plate 5, the other main plate side of the first connecting plate 5 is in contact with and fixedly connected to the corresponding main plate side of the second connecting plate 6 through bolts, and the other main plate side of the second connecting plate 6 is fixed to the side wing plate.
Each of the first connecting member 3 and the second connecting member 4 has only one main board.
The flanks of the present embodiment are right-angled trapezoids. The first connecting plates 5 of the first connecting pieces 3 and the second connecting plates 6 of the second connecting pieces 4 are arranged in a staggered mode along the horizontal longitudinal direction.
Furthermore, the upper precast concrete unit 2 is provided with a post-cast concrete flow hole 21 extending in the vertical direction and penetrating the upper and lower ends of the upper precast concrete unit 2. Concrete can be poured between the bottom end of the upper concrete prefabricated component 2 and the top end of the lower concrete structure 1 through the post-cast concrete flow holes 21 so as to complete the connection between the upper concrete prefabricated component 2 and the lower concrete structure 1.
The connection between the lower concrete structure 1 and the upper concrete prefabricated element 2 can be performed by any one of the following schemes.
Optionally, one scheme is: the concrete structure 1 is internally provided with a plurality of second vertical steel bars 17 extending along the vertical direction, the second vertical steel bars 17 extend out of the top end of the lower concrete structure 1, the upper concrete prefabricated part 2 is internally provided with a plurality of first vertical steel bars 16 extending along the vertical direction, the first vertical steel bars 16 in the upper concrete prefabricated part 2 extend downwards and extend out of the bottom end of the upper side wall segment and are fixedly connected with the second vertical steel bars 17 extending out of the top end of the lower side wall segment correspondingly, and if welding is adopted, the structural strength and structural integrity of the node can be further improved.
Optionally, another scheme is: a first grouting hole and a first grouting channel communicated with the first grouting hole are formed in the upper concrete prefabricated part 2, the first grouting hole extends along the vertical direction and penetrates through the bottom end of the upper concrete prefabricated part 2, a plurality of second vertical reinforcing steel bars 17 extending along the vertical direction are arranged in the lower concrete structure 1, the second vertical reinforcing steel bars 17 extend out of the top end of the lower concrete structure 1, and all or part of the second vertical reinforcing steel bars 17 correspondingly extend into the first grouting hole of the upper concrete prefabricated part 2; a plurality of first vertical steel bars 16 extending along the vertical direction are arranged in the upper concrete prefabricated part 2, and all or part of the first vertical steel bars 16 in the upper concrete prefabricated part 2 correspondingly extend into the first grouting holes; the first vertical steel bars 16 outside the first grouting holes extend downwards to extend out of the bottom end of the upper concrete prefabricated part 2, and are correspondingly and fixedly connected with the second vertical steel bars 17 extending out of the top end of the lower concrete structure 1. The first grout hole can adopt pre-buried grout sleeve and form in last precast concrete component 2, and above-mentioned first grout passageway can adopt pre-buried grout pipe and grout outlet pipe in last precast concrete component 2, thereby grout pipe's one end and grout sleeve intercommunication and the other end run through and constitute grout passageway entry in the precast concrete component 2, thereby grout outlet pipe's one end and grout sleeve intercommunication and the other end run through and constitute grout passageway export in the precast concrete component 2. Concrete is poured in the first pouring hole, so that the structural strength and structural integrity of the node can be improved.
The inlet and the outlet of the first grouting channel are both arranged on the side wall of the upper concrete prefabricated part 2.
Example two
Referring to fig. 3, the first connecting plate 5 and the second connecting plate 6 of the present embodiment each include a main plate, and the main plate is provided with bolt holes at intervals along a vertical direction; the first connecting plate 5 and the second connecting plate 6 also comprise bottom plates, the bottom plates are horizontal, and the main plates are vertically fixed on the bottom plates; the embedded component comprises vertical anchor bars 10 extending in the vertical direction, and the anchor bars are fixed on the bottom plate. The anchor bars and the main plate are respectively positioned at the upper side and the lower side of the bottom plate; and a plurality of anchor bars are fixed on each bottom plate. The anchor bars are vertically fixed on the bottom plate. The bottom plate is pre-embedded in the upper concrete prefabricated part 2 or the lower concrete structure 1. Stiffening plates 9 are fixed between two main plates which are arranged at intervals along the horizontal longitudinal direction in the main plates of the first connecting piece 3 or the second connecting piece 4; the stiffening plate 9 and the main boards respectively fixed with the two sides of the stiffening plate 9 are fixedly connected with the same bottom plate. Other technical features of the present embodiment are the same as those of the first embodiment.
EXAMPLE III
Referring to fig. 1 to 6, the embodiment discloses a prefabricated structure, which includes a lower concrete structure 1 and a plurality of upper concrete prefabricated components 2 sequentially spliced in a longitudinal direction of the lower concrete structure 1, the longitudinal splicing end surfaces of two adjacent upper concrete prefabricated components 2 are in mortise-tenon matched connection, and the upper concrete prefabricated components 2 and the lower concrete structure 1 are connected in a vertical direction by using the connection node structure according to the first embodiment or the second embodiment.
The lower concrete structure 1 of the present embodiment is a precast concrete member or a cast-in-place concrete member.
The lower concrete structure 1 may be formed by sequentially splicing a plurality of lower concrete prefabricated elements in a longitudinal direction, and the splicing structure may be the same as that of the plurality of upper concrete prefabricated elements 2.
Further, a third connecting plate 11 is correspondingly fixed on the longitudinal splicing end faces of two adjacent upper concrete prefabricated components 2, bolt through holes are formed in the third connecting plate 11, and the third connecting plates 11 on the longitudinal splicing end faces of two adjacent upper concrete prefabricated components 2 are fixedly connected through bolts; and the third connecting plate 11 is fixedly connected with a pre-embedded assembly pre-embedded in the upper concrete prefabricated part 2. The embedded assembly comprises horizontal anchor bars 12 which are embedded in the upper concrete prefabricated part 2 and extend along the horizontal longitudinal direction.
Go up concrete prefabricated component 2's vertical concatenation terminal surface and be equipped with the recess for installation third connecting plate 11, third connecting plate 11 include mainboard and bottom plate, the mainboard sets up with the bottom plate is vertical, bottom plate and the parallel interval of mainboard set up, be connected through the splice bar between bottom plate and the mainboard, mainboard and bottom plate all correspond and pre-buried in last concrete prefabricated component 2 and along horizontal vertical extension's horizontal anchor bar 12 fixed connection. The bottom plate is fixed at the groove bottom of the upper concrete prefabricated part 2, and the main plate is positioned at the groove notch of the upper concrete prefabricated part 2. The size of the main board of the third connecting board 11 is larger than that of the groove, so that part of the main board of the third connecting board 11 is embedded in the upper concrete prefabricated part 2. After the longitudinal splicing end faces of two adjacent upper concrete prefabricated components 2 are in mortise and tenon joint, the main boards of the third connecting plates 11 of the two adjacent upper concrete prefabricated components 2 are contacted.
And a bolt through hole is formed in the main plate of the third connecting plate 11. The gap between the bottom plate of the third connecting plate 11 and the main plate allows the worker to tighten the bolts.
And a steel backing plate 13 is arranged between the third connecting plates 11 of the longitudinal splicing end surfaces of two adjacent upper concrete prefabricated parts 2.
Further preferably, in order to ensure a more firm connection between the two third connecting plates 11 of the two adjacent upper concrete prefabricated parts 2, a steel shim plate 13 may be arranged between the two third connecting plates 11. The steel backing plate is arranged between the longitudinal splicing end faces of two adjacent upper concrete prefabricated parts 2, and a through hole for a tenon to penetrate through and a bolt through hole for a bolt to penetrate through are formed in the steel backing plate. The bolt through hole of the steel backing plate 13 is communicated with the bolt through hole on the main plate of the third connecting plate 11. A tenon is arranged on one longitudinal splicing end face of the upper concrete prefabricated part, and a mortise matched with the tenon is arranged on the other longitudinal splicing end face of the upper concrete prefabricated part.
The third connecting plate 11 can be arranged on two transverse sides of the mortise and tenon structure. One side of the groove for installing the third connection plate 11 penetrates through the side wall of the upper concrete prefabricated part 2. The present embodiment longitudinally connects two adjacent upper concrete prefabricated elements 2 by the third connection plate 11. In this embodiment, the upper end and the lower end of the longitudinal splicing end surfaces of two adjacent upper concrete prefabricated parts 2 are connected through the third connecting plate 11. The horizontal longitudinal direction reinforcing bars 15 in the adjacent two upper precast concrete members 2 of the present embodiment may be fixedly connected by the following structure.
Furthermore, a second grouting hole and a second grouting channel communicated with the second grouting hole are formed in the upper concrete prefabricated part 2, the second grouting hole extends horizontally and longitudinally, one end of the second grouting hole penetrates through the longitudinal splicing end face of the upper concrete prefabricated part 2, and the other end of the second grouting hole is closed. And horizontal longitudinal steel bars 15 extending horizontally and longitudinally are arranged in the upper concrete prefabricated part 2, the horizontal longitudinal steel bars 15 in the upper concrete prefabricated part 2 extend into the second grouting holes, and the other ends of the horizontal longitudinal steel bars 15 extend out of the longitudinal splicing end face of the upper concrete prefabricated part 2 and correspondingly extend into the second grouting holes of the adjacent upper concrete prefabricated parts 2 to form sleeve grouting connection nodes. Concrete can enter the second grouting hole through the grouting channel-grouting hole. The second grout hole can adopt pre-buried grout sleeve 14 and form in last precast concrete component 2, and above-mentioned second grout passageway can adopt pre-buried grout pipe and grout outlet pipe in last precast concrete component 2, thereby grout pipe's one end and grout sleeve 14 intercommunication and the other end run through last precast concrete component 2 constitute grout passageway entry, thereby grout outlet pipe's one end and grout sleeve intercommunication and the other end run through last precast concrete component 2 constitute grout passageway export. Concrete is poured in the second pouring hole, so that the structural strength and structural integrity of the node can be improved.
The inlet and the outlet of the second grouting channel of this embodiment are opened on the side wall or the upper end surface of the upper concrete prefabricated part 2.
When the side wall is assembled, the upper concrete prefabricated parts 2 can be assembled and then concrete can be poured once.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a connected node of prefabricated assembled structure which characterized in that: the concrete prefabricated part comprises a lower concrete structure and an upper concrete prefabricated part positioned at the upper end of the lower concrete structure, wherein a plurality of first connecting pieces are longitudinally arranged at the bottom of the upper concrete prefabricated part along the horizontal direction, a plurality of second connecting pieces are longitudinally arranged at the top of the lower concrete structure along the horizontal direction, and the first connecting pieces are fixedly connected with the plurality of first connecting pieces at the bottom of the upper concrete prefabricated part in a detachable mode and used for realizing the connection between the upper concrete prefabricated part and the lower concrete structure in the vertical direction.
2. A prefabricated structural connecting node according to claim 1, wherein: a rear cast-in-place structure is poured between the bottom end of the upper concrete prefabricated part and the top end of the lower concrete structure; the lower concrete structure is a precast concrete piece or a cast-in-place concrete piece.
3. A prefabricated structural connecting node according to claim 1, wherein: the first connecting piece comprises a pre-embedded assembly pre-embedded in the upper concrete prefabricated part and a first connecting plate fully or partially exposed at the bottom end of the upper concrete prefabricated part, the pre-embedded assembly of the first connecting piece is fixedly connected with the first connecting plate, the second connecting piece comprises a pre-embedded assembly pre-embedded in the lower concrete structure and a second connecting plate fully or partially exposed at the top end of the lower concrete structure, and the pre-embedded assembly of the second connecting piece is fixedly connected with the second connecting plate; bolt holes are formed in the first connecting plate of the first connecting piece and the second connecting plate of the second connecting piece at intervals in the vertical direction, and the first connecting plate of the first connecting piece is fixedly connected with the second connecting plate of the second connecting piece through bolts.
4. A prefabricated structural connecting node according to claim 3, wherein: the first connecting plate and the second connecting plate respectively comprise a main plate, and bolt holes are formed in the main plate at intervals along the vertical direction; the first connecting plate and the second connecting plate also comprise bottom plates, the bottom plates are horizontal, and the main plates are vertically fixed on the bottom plates; the embedded component comprises vertical anchor bars extending in the vertical direction, and the vertical anchor bars are fixed on the bottom plate.
5. A prefabricated structural connecting node according to claim 4, wherein: and one side of the main board of the first connecting plate is fixedly provided with a side wing plate, the other side of the main board of the first connecting plate is in contact with one side of the main board of the corresponding second connecting plate and is fixedly connected with the main board of the second connecting plate through a bolt, and the other side of the main board of the second connecting plate is fixedly provided with a side wing plate.
6. A prefabricated structural connecting node according to claim 4, wherein: a stiffening plate is fixed between two main plates which are arranged at intervals along the horizontal longitudinal direction in the main plates of the first connecting piece or the second connecting piece; the stiffening plate and the main plates respectively fixed with the two sides of the stiffening plate are fixedly connected with the same bottom plate.
7. A prefabricated structural connecting node according to claim 1, wherein: the upper precast concrete component is provided with a post-cast concrete flow hole which extends along the vertical direction and runs through the upper end and the lower end of the upper precast concrete component.
8. A prefabricated structure characterized in that: the connecting node structure comprises a lower concrete structure and a plurality of upper concrete prefabricated parts which are sequentially spliced in the longitudinal direction of the lower concrete structure, the longitudinal splicing end faces of two adjacent upper concrete prefabricated parts are in mortise and tenon matched connection, and the connection in the vertical direction is realized between each upper concrete prefabricated part and the lower concrete structure by adopting the connecting node structure as claimed in any one of claims 1 to 7.
9. The prefabricated structure of claim 8, wherein: a third connecting plate is correspondingly fixed on the longitudinal splicing end faces of two adjacent upper concrete prefabricated components, bolt through holes are formed in the third connecting plates, and the third connecting plates of the longitudinal splicing end faces of the two adjacent upper concrete prefabricated components are fixedly connected through bolts; and the third connecting plate is fixedly connected with a pre-embedded assembly pre-embedded in the upper concrete prefabricated part.
10. The prefabricated structure of claim 8, wherein: the upper concrete prefabricated component is internally provided with a second grouting hole and a second grouting channel communicated with the second grouting hole, the second grouting hole extends along the horizontal longitudinal direction and penetrates through the longitudinal splicing end face of the upper concrete prefabricated component, the upper concrete prefabricated component is internally provided with horizontal longitudinal steel bars extending along the horizontal longitudinal direction, the horizontal longitudinal steel bars in the upper concrete prefabricated component extend into the second grouting hole, the other end of each horizontal longitudinal steel bar extends out of the longitudinal splicing end face of the upper concrete prefabricated component and correspondingly extends into the second grouting hole of the adjacent upper concrete prefabricated component, and a sleeve grouting connecting node is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110306173.6A CN113026988A (en) | 2021-03-23 | 2021-03-23 | Prefabricated assembled structure and prefabricated assembled structure's connected node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110306173.6A CN113026988A (en) | 2021-03-23 | 2021-03-23 | Prefabricated assembled structure and prefabricated assembled structure's connected node |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113026988A true CN113026988A (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110306173.6A Pending CN113026988A (en) | 2021-03-23 | 2021-03-23 | Prefabricated assembled structure and prefabricated assembled structure's connected node |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113026988A (en) |
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2021
- 2021-03-23 CN CN202110306173.6A patent/CN113026988A/en active Pending
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