CN110761400A - Connecting structure of prefabricated integral convex window and assembling method thereof - Google Patents
Connecting structure of prefabricated integral convex window and assembling method thereof Download PDFInfo
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- CN110761400A CN110761400A CN201910967381.3A CN201910967381A CN110761400A CN 110761400 A CN110761400 A CN 110761400A CN 201910967381 A CN201910967381 A CN 201910967381A CN 110761400 A CN110761400 A CN 110761400A
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- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 239000004567 concrete Substances 0.000 claims description 48
- 238000004519 manufacturing process Methods 0.000 abstract description 20
- 238000010276 construction Methods 0.000 abstract description 15
- 238000009434 installation Methods 0.000 abstract description 3
- 238000009415 formwork Methods 0.000 abstract description 2
- 239000004570 mortar (masonry) Substances 0.000 abstract description 2
- 230000007306 turnover Effects 0.000 abstract description 2
- 238000004873 anchoring Methods 0.000 description 14
- 239000002131 composite material Substances 0.000 description 10
- 239000011521 glass Substances 0.000 description 4
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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
- E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
- E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
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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
- E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
- E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
- E04B1/043—Connections specially adapted therefor
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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
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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
- E04B1/4107—Longitudinal elements having an open profile, with the opening parallel to the concrete or masonry surface, i.e. anchoring rails
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Load-Bearing And Curtain Walls (AREA)
Abstract
The invention provides a connecting structure of a prefabricated integral bay window, which comprises the prefabricated integral bay window and a superposed beam, and is characterized in that the prefabricated integral bay window is integrally cast into a C-shaped structure and comprises a top plate, a side wall and a bottom plate, the superposed beam comprises a prefabricated part and a cast-in-place part, and the bottom surface of the bottom plate and the bottom surface of the prefabricated part are positioned on the same horizontal plane; the indoor side of lateral wall is through last coupling assembling and cast-in-place portion fixed connection, and the bottom plate is through coupling assembling and prefabricated portion fixed connection down. According to the connecting structure of the prefabricated integral convex window, the edge part of the prefabricated integral convex window does not extend out of a steel bar during production and manufacturing, a production mold is simple, demolding efficiency is high, and the turnover frequency of the mold is high; the loading rate can be improved in the transportation stage; the wet operation of the assembly site is less, a formwork can not be supported, the site construction efficiency is improved, and the construction cost is reduced; the fault-tolerant rate of on-site assembly is high, the position of the prefabricated integral convex window can be adjusted on site through gaskets, bolts, mortar setting and the like, and on-site installation and adjustment are facilitated.
Description
Technical Field
The invention belongs to the technical field of assembly type buildings, and particularly relates to a connecting structure of a prefabricated integral convex window and an assembly method thereof.
Background
The fabricated building is assembled by prefabricated parts (PC pieces), and nodes among the PC pieces are connected through connecting pieces or cast-in-place concrete. Reasonable node design is the key point of guaranteeing assembled building equipment quality, and the node design between the PC spare not only will guarantee structural safety and function normal use, still needs the implementation degree of difficulty and the cost of overall consideration prefabricated component manufacturing, transportation and field assembly. The assembled prefabricated integral convex window can be divided into a three-sided window and a single-sided window according to the window opening direction, wherein the three-sided window has better lighting and visual field and wide application; the prefabricated beam wall integral convex window, the prefabricated integral convex window and the prefabricated assembled convex window can be divided according to the assembly formula, wherein the prefabricated integral convex window has higher production, manufacturing, transportation and construction efficiency.
There are two types of connection structures related to prefabricated integral bay windows in the prior art: one is to pre-embed connecting steel bars in the prefabricated integral bay window, the connecting steel bars stretch into the cast-in-situ layer of the superposed beam, and post-cast concrete connects the beam and the bay window into a whole. The proposal is described in the invention patent application of prefabricated integral bay window component, assembled bay window node structure and construction method thereof (publication No. CN 108316466A). The connecting structure has the problems of more ribs, complex mould and troublesome demoulding in the production and manufacturing stage; in the transportation stage, the space occupied by the extending steel bars influences the loading rate and is easy to bring personal safety hidden danger; in the construction stage, more forms need to be erected in the field wet operation, and the construction efficiency is influenced.
The other is connected by a grouting sleeve. In the technical scheme of the invention patent application U-shaped integrally prefabricated integral bay window component, an assembled bay window node structure and a construction method thereof (publication number CN108708452A), a grouting sleeve is pre-embedded in the bay window, and the lower end part of the grouting sleeve extends downwards from the lower end surface of a boss and is anchored into a cast-in-place part of a structural beam, so that the connection between the bay window and the beam is realized. The connection mode needs to simultaneously stretch bolts embedded in a plurality of beams into grouting sleeves embedded in the bay windows, so that the requirement on the production precision of prefabricated parts is high, and the field operation tolerance and the adjustable range are small; in the manufacturing stage, the PC pieces are more in concave-convex, so that the mold cost is higher, and the pre-embedding efficiency is lower; in the construction stage, the grouting cost is high, and the detection on the grouting compactness is difficult.
In summary, it is necessary to develop a new connecting structure of a prefabricated integral bay window and an assembling method thereof to solve the technical problems in the prior art.
The invention content is as follows:
the invention aims to provide a connecting structure of a prefabricated integral convex window and an assembling method thereof, wherein the convex window and an adjacent superposed beam form reliable connection, load is transmitted to the superposed beam, and on the premise of meeting the requirements of structural safety and normal use of functions, the difficulty of manufacturing, transportation and construction can be obviously reduced, the comprehensive cost is reduced, and the efficiency is improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a connecting structure of a prefabricated integral bay window comprises the prefabricated integral bay window and a superposed beam, wherein the prefabricated integral bay window is integrally cast into a C-shaped structure and comprises a top plate, a side wall and a bottom plate, the superposed beam comprises a prefabricated part and a cast-in-place part, and the bottom surface of the bottom plate and the bottom surface of the prefabricated part are positioned on the same horizontal plane; the indoor side of lateral wall through last coupling assembling with cast-in-place portion fixed connection, the bottom plate through lower coupling assembling with prefabricated portion fixed connection.
Preferably, the upper connecting assembly comprises a connecting part, an embedded part and a fixing part for connecting the connecting part and the embedded part together, the connecting part is anchored in the concrete of the cast-in-place part, and the embedded part is embedded in the concrete of the side wall.
Preferably, a groove is formed in the indoor side of the side wall, the embedded part is anchored in concrete below the groove, and the fixing part is arranged in the groove or extends from the groove to the cast-in-place part.
Preferably, the height of the bottom surface of the groove is lower than that of the top surface of the laminated beam.
Preferably, the first end of the connecting part is anchored in the cast-in-place concrete, the bottom surface of the first end of the connecting part is provided with an anchoring supporting leg, and the second end of the connecting part is fixedly connected with the fixing part.
Preferably, the embedded part comprises a first sliding groove or a first sleeve embedded in the side wall concrete, and the lower end of the fixing part is clamped in the first sliding groove or the lower end of the fixing part is in threaded connection with the first sleeve.
Preferably, the open end of the first runner or the first sleeve is flush with the bottom surface of the groove.
Preferably, the bottom of the first sliding groove or the first sleeve is provided with an anchoring leg.
Preferably, the fixing portion includes a bolt and a nut, and the nut fastens the second end of the connecting portion to the bolt.
Preferably, the fixing part further comprises a gasket, and the gasket is tightly attached to the upper surface of the connecting part and fixed on the fixing part; the surfaces of the connecting part and the gasket which are mutually attached are provided with mutually meshed sawtooth grains.
Preferably, the side wall is a sandwich structure with a middle heat-insulating layer and concrete layers on two sides, and the anchoring supporting legs extend into the concrete layers on two sides respectively.
Preferably, the lower surface of the connecting part is provided with anchoring legs, and the anchoring legs are anchored in the cast-in-place concrete.
Preferably, the connecting portion includes second spout and slide bar, the open end of second spout is up, the first end card of slide bar is located in the second spout, the second end with the fixed part is connected.
Preferably, the fixed part is an L-shaped plate, the L-shaped plate comprises a transverse plate and a vertical plate which are perpendicular to each other, a waist-shaped hole is formed in the joint of the transverse plate and the sliding rod, and the second end of the sliding rod extends into the waist-shaped hole and is fixed through a nut.
Preferably, the embedded part is a positioning box with an open top side, and the vertical plate is arranged in the positioning box.
Preferably, the second sliding groove and the positioning box are both provided with anchor rods.
Preferably, the lower connecting assembly comprises a beam-end embedded part, a bottom plate embedded part and a connecting box for connecting the beam-end embedded part and the bottom plate embedded part together, the connecting box comprises at least two bolts, nuts and a box body with an opening at the bottom, and the bolts penetrate through the box body and are respectively and fixedly connected with the beam-end embedded part or the bottom plate embedded part through the nuts.
Preferably, the beam-end embedded part comprises a second sliding groove, an open end of the second sliding groove faces the box body and is flush with a side surface of the prefabricated part, and a tail end of at least one bolt is clamped in the second sliding groove.
Preferably, the floor embedded part comprises a second sleeve, and an open end of the second sleeve faces the box body and is flush with the side surface of the floor.
Preferably, an anchor rod is further disposed on the second sleeve and/or the second sliding chute.
Preferably, the connecting box further comprises a gasket, the gasket is tightly attached to the inner side surface of the box body, the gasket and the box body are provided with mutually meshed sawtooth threads, and the gasket and the box body are fixed together through the bolts and the nuts.
Preferably, the connecting box further comprises an adjusting bolt, a fixing hole matched with the adjusting bolt is formed in the top wall of the box body, and the adjusting bolt is inserted into the fixing hole from the upper side of the top wall and fixed on the top wall.
Preferably, a notch for accommodating the box body is arranged at the intersection of the side wall and the bottom plate.
Preferably, the prefabricated part extends upwards to form a reverse sill near the top side of the prefabricated integral bay window, and the height of the reverse sill is equal to that of the cast-in-place part.
Preferably, the prefabricated floor slab further comprises a prefabricated floor slab, a step-shaped notch is formed in the splicing side of the prefabricated floor slab, the bottom face of the step-shaped notch is placed on the indoor top face of the prefabricated part, and the step-shaped notch and the cast-in-place part are internally provided with through-length additional reinforcing steel bars and filled with cast-in-place concrete.
Preferably, the connecting portion of the upper connecting assembly is anchored in the cast in place concrete.
The invention also provides an assembly method of the connecting structure of the prefabricated integral bay window, which comprises the following steps:
s1, hoisting and positioning the prefabricated part of the superposed beam, fixing the box body in the lower connecting component at the bottom side of the prefabricated part,
s2, hoisting and positioning the prefabricated integral convex window, leveling the elevation, fixing the temporary support, and connecting and fixing the bottom plate and the box body;
and S3, arranging an upper connecting assembly, pouring concrete of a cast-in-place part of the superposed beam, and removing the temporary support after curing and forming.
The technical scheme of the invention at least has the following beneficial effects:
according to the connecting structure of the prefabricated integral convex window, the edge part of the prefabricated integral convex window does not extend out of a steel bar during production and manufacturing, a production mold is simple, demolding efficiency is high, and the turnover frequency of the mold is high; the loading rate can be improved in the transportation stage; the wet operation of the assembly site is less, a formwork can not be supported, the site construction efficiency is improved, and the construction cost is reduced; the fault-tolerant rate of on-site assembly is high, the position of the prefabricated integral convex window can be adjusted on site through gaskets, bolts, mortar setting and the like, and on-site installation and adjustment are facilitated.
Drawings
FIG. 1 is a perspective view of a prefabricated integral bay window according to example 1;
fig. 2 is a vertical sectional view of a connecting structure of a prefabricated integrated bay window and a superposed beam in embodiment 1;
fig. 3 is a vertical sectional view of an upper connecting assembly in embodiment 1;
fig. 4 is a perspective view of an upper connecting member according to embodiment 1;
fig. 5 is a vertical sectional view of the lower connecting assembly in embodiment 1;
fig. 6 is a perspective view of a lower connecting member according to embodiment 1;
fig. 7 is a vertical sectional view of an upper connecting assembly in embodiment 2;
FIG. 8 is a perspective view of a lower connecting member in accordance with example 3;
1-prefabricated integral bay window, 101-top plate, 102-side wall, 103-bottom plate, 104-groove, 105-notch, 106-glass, 2-upper connection assembly, 3-lower connection assembly, 4-superposed beam, 401-inverted ridge, 5-floor, 6-connection portion, 7-embedded portion, 8-fixed portion, 9-anchoring leg, 10-first sliding groove, 11-first sleeve, 12-second sliding groove, 13-second sleeve, 14-gasket, 15-waist-shaped hole, 16-beam end embedded part, 17-bottom plate embedded part, 18-connection box, 19-bolt, 20-nut, 21-adjusting bolt, 22-positioning box, 23-anchor rod, 24-L-shaped plate and 25-sliding rod.
Detailed Description
The following preferred embodiments of the present invention are provided to aid in a further understanding of the invention. It should be understood by those skilled in the art that the description of the embodiments of the present invention is by way of example only, and not by way of limitation.
Example 1
Referring to fig. 2, the connection structure of the prefabricated integral bay window 1 in the embodiment comprises the prefabricated integral bay window 1 and the superposed beam 4, wherein the superposed beam 4 comprises a prefabricated part and a cast-in-place part. Referring to fig. 1, the prefabricated integral bay window 1 is integrally cast into a C-like shape and comprises a top plate 101, a side wall 102 and a bottom plate 103, wherein a groove 104 is formed in the indoor side of the side wall 102, and an upper connecting assembly 2 is arranged at the groove 104; the intersection of the side wall 102 and the bottom plate 103 is provided with a notch 105 for accommodating the box body, and the notch 105 is provided with the lower connecting component 3. Referring to fig. 2, the bottom surface of the bottom plate 103 of the prefabricated integral bay window 1 and the bottom surface of the prefabricated part are located on the same horizontal plane, the indoor side of the bay window side wall 102 is fixedly connected with the cast-in-place part of the composite beam 4 through the upper connecting assembly 2, and the bottom plate 103 is fixedly connected with the prefabricated part of the composite beam 4 through the lower connecting assembly 3. The prefabricated integral bay window 1 is connected with the beam of the floor, the height difference between the top plate 101 of the prefabricated integral bay window 1 and the top surface of the superposed beam 4 is about 1200mm, and the top plate 101 forms the bay window table surface of the floor space. The glass 106 is connected to the outdoor end surfaces of the top plate 101 and the bottom plate 103, respectively, the top end of the glass 106 on the top plate 101 is connected to the upper bay window bottom plate 103, and the bottom end of the glass 106 on the bottom plate 103 is connected to the lower bay window top plate 101. I.e. the bay window space of the floor is formed between the ceiling 101 of the bay window in figure 2 and the floor 103 of the bay window above. By the arrangement, the side end face of the prefabricated integral bay window 1 does not extend out of the steel bar during production, the production efficiency is high, and the production cost is saved; the connecting abutted seams between the convex windows and the beams cannot be directly exposed to heavy rain in the external wind and rain environment, so that the hidden danger of rainwater leakage of the building is reduced; the bottom plate 103 of the bay window is as high as the bottom surface of the beam, so that the indoor space is tidy, and the situation that the bottom of the bay window exceeds the bottom surface of the beam, so that the use space is reduced or the indoor space is divided into irregular shapes is avoided; the lower connecting assembly 3 between the bay window and the beam can provide good shear-resisting and bearing functions, and the upper connecting assembly 2 positions the bay window on the beam, so that the reliable connection between the bay window and the beam in direct descending is ensured. This connection structure of prefabricated whole bay window 1 is reliable, and the ability reinforce that shears, go up coupling assembling 2 moreover and lower coupling assembling 3 still more conveniently change under the destroyed condition of earthquake.
Referring to fig. 2, on the basis of the embodiment, in another modified embodiment, the prefabricated part extends upwards to form a reverse sill 401 near the top side of the prefabricated integral bay window 1, and the height of the reverse sill 401 is equal to that of the cast-in-place part. By the arrangement, the reverse ridge 401 can serve as an outdoor template of the cast-in-place part, the outdoor template of the cast-in-place part does not need to be erected, and meanwhile, cast-in-place concrete is prevented from flowing down from the abutted seam between the superposed beam 4 and the convex window to pollute the indoor space.
Referring to fig. 2 and 3, the upper connecting assembly 2 includes a connecting portion 6, an embedded portion 7, and a fixing portion 8 connecting the connecting portion and the embedded portion together, the connecting portion 6 is anchored in the concrete of the cast-in-place portion of the composite beam 4, and the embedded portion 7 is embedded in the concrete of the side wall 102 of the prefabricated integral bay window 1. Referring to fig. 1-3, a groove 104 is provided on the indoor side of the side wall 102, and the embedment 7 is anchored in the concrete under the groove 104. The first end bottom surface of connecting portion 6 is provided with anchor landing leg 9, and the first end anchor of connecting portion 6 in cast-in-place portion concrete, and connecting portion 6 second end and fixed part 8 fixed connection. The arrangement improves the anchoring strength of the connecting part 6 in the cast-in-place part of the composite beam 4, and avoids the connecting part 6 from easily separating from the concrete of the composite beam 4. In the present embodiment, the height of the bottom surface of the groove 104 is lower than the height of the top surface of the composite beam 4; the height of adjusting the bay window when setting up convenient hoist and mount prefabricated whole bay window 1 like this, simultaneously in pouring the cast-in-place portion concrete of composite beam 4, fill the concrete with recess 104 simultaneously, guarantee that coupling assembling 2 all anchors in the concrete, improved its fire prevention rust-resistant ability.
In the present embodiment, referring to fig. 2, 3 and 4, the embedded part 7 includes the first sliding groove 10 embedded in the concrete of the side wall 102, and the open end of the top surface of the first sliding groove 10 is flush with the bottom surface of the groove 104. The fixing portion 8 includes a bolt 19 and a nut 20, and the nut 20 fastens the second end of the connecting portion 6 to the bolt 19. The bolt 19 includes the fixture block end of lower part and the screw thread end of upper portion, and the fixture block end card of bolt 19 is in first spout 10, and the screw thread end upwards stretches out and arranges in recess 104, and the screw thread end passes through nut 20 fastening connection with connecting portion 6 second end. In another modified embodiment, in order to facilitate adjustment and tolerance of installation, the second end of the connecting part 6 is provided with a long circular hole, so that the threaded end of the bolt 19 penetrates through the long circular hole, the position relation between the connecting part 6 and the bolt 19 can be adjusted in three dimensions up, down, left, right, front and back, the adjustable range is wider, the field construction operation is facilitated, and the tolerance is larger.
In the embodiment, when the prefabricated integral bay window 1 is prefabricated, the upper fixing part 8 is connected to the embedded part 7, that is, the fixture block end of the bolt 19 is clamped in the first sliding groove 10; then, embedding the embedded part 7 of the upper connecting component 2 in the concrete of the side wall 102, and placing the threaded end of the bolt 19 in the groove 104; in a construction site, after the prefabricated integral bay window 1 is hoisted, positioned and prefabricated, the threaded end of the bolt 19 is inserted into the connecting part 6, then the two are fastened together through the nut 20, the first end of the connecting part 6 extends to the upper part of the prefabricated part of the superposed beam 4, and the first end of the connecting part 6 is anchored therein after the cast-in-place concrete is poured. In this way, the fixed connection between the upper connecting assembly 2 and the prefabricated integral bay window 1 and the superposed beam 4 can be conveniently realized, so that the middle part of the bay window is limited on the superposed beam 4. Referring to fig. 2, on the basis of the embodiment, in another modified embodiment, the side wall 102 of the prefabricated integral bay window 1 is a sandwich structure of an intermediate insulating layer and two concrete layers, and the anchoring legs 9 extend into the concrete layers on two sides respectively. Thus, the heat preservation and insulation performance of the bay window is enhanced. The bottom of first spout 10 is provided with the anchor landing leg 9 of U shaped steel muscle preparation, has strengthened the anchor dynamics of pre-buried portion 7 in lateral wall 102 concrete, has guaranteed the connection wholeness between the middle heat preservation of lateral wall 102, the both sides concrete layer moreover.
Referring to fig. 3 and 4, in another modified embodiment, on the basis of the present embodiment, the fixing portion 8 further includes a pad 14, and the pad 14 is closely attached to the upper surface of the connecting portion 6; the surfaces of the connecting part 6 and the gasket 14 which are attached to each other are provided with mutually engaged sawtooth patterns. When the second end of the connecting portion 6 is provided with an oblong hole, the area of the washer 14 is larger than that of the oblong hole. The threaded end of the bolt 19 passes through the second end of the connecting portion 6 and the washer 14, and the washer 14 and the connecting portion 6 are fastened together by the nut 20. By the arrangement, the connection reliability between the fixing part 8 and the connecting part 6 is enhanced, the bolt 19 is prevented from being separated from the connecting part 6 under the action of external force such as small vibration, and the connection reliability of the bay window and the beam is improved.
Referring to fig. 2, in the present embodiment, the lower connection assembly 3 includes a beam-end embedded part 16 embedded in the precast concrete, a floor embedded part 17 embedded in the concrete of the bay window floor 103, and a connection box 18 connecting the beam-end embedded part 16 and the floor embedded part 17 together. Referring to fig. 2 and 5, the connecting box 18 comprises at least two bolts 19, nuts 20 and a box body with an opening at the bottom, wherein the bolts 19 penetrate through the box body and are fixedly connected with the beam-end embedded parts 16 or the bottom plate embedded parts 17 through the nuts 20. By the arrangement, the beam-end embedded parts 16 and the bottom plate embedded parts 17 are fixedly connected through the connecting boxes 18 on the construction site, the operation is simple and convenient, and the adjustability is high.
Referring to fig. 5 and 6, in the present embodiment, the beam-end embedded part 16 includes a second sliding groove 12, an open end of the second sliding groove 12 faces the box body, and the ends of the bolts 19 are provided with locking blocks, and the locking block ends of the two bolts 19 are locked in the second sliding groove 12. The beam-end embedments 16 are anchored in the concrete at the bottom of the precast portion when the precast portion of the laminated beam 4 is produced, while ensuring that the open end of the second runner 12 is flush with the side surface of the precast portion from which the threaded ends of the bolts 19 protrude.
With continued reference to fig. 5 and 6, in this embodiment, the floor embedment 17 includes a second sleeve 13, with the open end of the second sleeve 13 facing the cartridge body. When the bay window is produced, a notch 105 is formed at the intersection of the bottom plate 103 and the side wall 102, the bottom plate embedded part 17 is anchored in concrete at the notch 105, the second sleeve 13 is provided with internal threads, and the open end of the second sleeve 13 is flush with the side surface of the bottom plate 103. In order to improve the anchoring strength of the second sleeve 13 on the concrete, an anchor rod 23 is arranged on the second sleeve 13. In other embodiments, other forms of reinforcement, such as anchoring legs 9, may be used in place of anchor bar 23.
Referring to fig. 5 and 6, on the basis of the present embodiment, the connection box 18 further includes a gasket 14, the gasket 14 is tightly attached to the inner vertical surface of the box body, and the gasket 14 and the surface of the box body are both provided with mutually engaged sawtooth patterns, and the bolt 19 and the nut 20 fix the gasket 14 and the box body together. By the arrangement, the shearing resistance and the firmness between the box body and the beam end embedded part 16 and the bottom plate embedded part 17 are improved, so that the connection reliability between the prefabricated integral convex window 1 and the superposed beam 4 is further improved.
Referring to fig. 5 and 6, on the basis of the embodiment, in another modified embodiment, the prefabricated floor slab 5 is further included, a step-shaped notch is formed in the splicing side of the prefabricated floor slab 5, the bottom surface of the step-shaped notch is placed on the indoor top surface of the prefabricated part, the first end of the connecting part 6 extends to the step-shaped notch of the floor slab 5, the through-length additional steel bars are arranged in the step-shaped notch and the cast-in-place part, cast-in-place concrete is filled in the step-shaped notch and the cast-in-place part, and the bay window, the superposed beams 4.
The assembling method of the connecting structure of the prefabricated integral bay window 1 in the embodiment comprises the following steps:
s1, hoisting and positioning the prefabricated part of the superposed beam 4, and fixedly connecting the beam end embedded part 16 at the bottom side of the prefabricated part with the box body through bolts 19 and nuts 20;
s2, hoisting, positioning and prefabricating the integral bay window 1, leveling the elevation, fixing the temporary support, and connecting and fixing the bottom plate embedded part 17 of the bottom plate 103 and the box body through bolts 19 and nuts 20;
s3, extending the second end of the connecting part 6 in the upper connecting component 2 into the bay window groove 104, connecting the second end with the fixing part 8, pouring the concrete of the cast-in-place part of the composite beam 4, plugging the concrete in the bay window groove 104 and the gap 105, and removing the temporary support after curing and forming.
When the indoor-side ceiling of the composite girder 4 is provided with the precast floor slab 5, hoisting the precast floor slab 5 and resting the bottom surface of the precast floor slab 5 on the indoor-side ceiling of the precast section of the composite girder 4 is further included after the step S2 and before the step S3.
Example 2
The connection structure of the prefabricated integrated bay window 1 in this embodiment is different from that of embodiment 1 in that the specific structural forms of the upper connection assembly 2 and the lower connection assembly 3 are different. Wherein, the connecting part 6 of the upper connecting component 2 is the same as that in the embodiment 1, and the embedded part 7 and the fixing part 8 are different.
Referring to fig. 7, the embedded part 7 of the upper connecting assembly in this embodiment includes a first sleeve 11 and an anchoring leg 9 embedded in concrete of the side wall 102 of the bay window. In this embodiment, the first sleeve 11 is a hollow sleeve with two open ends and an internal thread. The fixing portion 8 includes a screw, a nut 20 and a gasket 14, the bottom of the screw is inserted into the top end of the hollow first sleeve 11 and is connected with the screw by a thread, and the top of the screw is connected with the connecting portion 6 by the nut 20. The anchoring leg 9 comprises an upper connecting screw and a lower U-shaped reinforcing bar welded as a single body, wherein the upper connecting screw is inserted into the bottom of the hollow first sleeve 11 and is screwed. In the production of the prefabricated integral bay window 1, the first sleeve 11 and the anchoring leg 9 are connected together and anchored in the concrete below the groove 104, with the open top side of the first sleeve 11 flush with the bottom side of the groove 104. The threaded rod of the fastening part 8 can be connected to the first sleeve 11 during the production of the bay window or can be screwed into the first sleeve 11 during the field construction.
In this embodiment, the connection box 18 of the lower connection assembly 3 further includes an adjusting bolt 21, a fixing hole matched with the adjusting bolt 21 is formed in the top wall of the box body, and the adjusting bolt 21 is inserted into the fixing hole from the upper side of the box body and fixed on the top wall. Set up like this, when prefabricated whole bay window 1 was arranged in on the box body, can adjust the height of bay window through adjusting bolt 21, improved site operation's controllability and tolerance nature.
Example 3
The connection structure of the prefabricated integrated bay window 1 in this embodiment is different from that of embodiment 1 in the specific structural form of the upper connection assembly 2. Referring to fig. 8, in the present embodiment, the upper connecting assembly 2 includes a connecting portion 6, an embedded portion 7, and a fixing portion 8. The connecting portion 6 includes a second sliding groove 12 and a sliding rod 2525, an open end of the second sliding groove 12 faces upward and is flush with the upper surface of the prefabricated portion, a first end of the sliding rod 2525 is clamped in the second sliding groove 12, and a second end of the sliding rod 2525 is connected with the fixing portion 8. The embedded part 7 is a positioning box 22 with an opening at the top side, and the opening end surface of the positioning box 22 is flush with the lower surface of the groove 104 of the bay window. The fixing part 8 is an L-shaped plate 24, the L-shaped plate 24 comprises a transverse plate and a vertical plate which are perpendicular to each other, a waist-shaped hole 15 is formed at the joint of the transverse plate and the sliding rod 2525, and the second end of the sliding rod 2525 extends into the waist-shaped hole 15 and is fixed through a nut 20; the risers are placed in the location boxes 22. In this embodiment, the anchor rods 23 are disposed on the second sliding chute 12 and the positioning box 22, wherein the anchor rods 23 on the second sliding chute 12 are steel bars welded on the bottom surface of the second sliding chute 12 and provided with anchor heads, and the anchor rods 23 on the positioning box 22 are straight steel bars welded on the side surface of the box body and have a length greater than that of the box body. This arrangement can improve the anchoring force of the second chute 12 and the cage 22 in the precast portion concrete and the bay window concrete.
The last coupling assembling 2 of this implementation, wherein pre-buried portion 7 is pre-buried promptly in the recess 104 below concrete of bay window when bay window production, connecting portion 6 is pre-buried promptly in the prefabricated portion top surface concrete when the prefabricated portion of superposed beam 4 is produced, during the site operation, with bay window and superposed beam 4 location back, be connected L template 24 with connecting portion 6 and prefabricated portion respectively, after the cast-in-place portion concrete of cast-in-place portion of cast-in-place beam 4 is pour, the most anchor of the diaphragm of L template 24 is in cast-in-place portion, thereby realize spacing the bay window on superposed beam 4.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application and not for limiting the protection scope thereof, and although the present application is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: numerous variations, modifications, and equivalents will occur to those skilled in the art upon reading the present application and are within the scope of the claims as issued or as granted.
Claims (10)
1. A connecting structure of a prefabricated integral bay window comprises the prefabricated integral bay window and a superposed beam, and is characterized in that the prefabricated integral bay window is integrally cast into a C-shaped structure and comprises a top plate, a side wall and a bottom plate, the superposed beam comprises a prefabricated part and a cast-in-place part, and the bottom surface of the bottom plate and the bottom surface of the prefabricated part are positioned on the same horizontal plane; the indoor side of lateral wall through last coupling assembling with cast-in-place portion fixed connection, the bottom plate through lower coupling assembling with prefabricated portion fixed connection.
2. The connecting structure of the prefabricated integral bay window of claim 1, wherein the upper connecting assembly comprises a connecting part, an embedded part and a fixing part connecting the connecting part and the embedded part together, the connecting part is anchored in the concrete of the cast-in-place part, and the embedded part is embedded in the concrete of the side wall.
3. The connecting structure of the prefabricated integral bay window of claim 2, wherein a groove is formed in the indoor side of the side wall, the embedded part is anchored in concrete below the groove, and the fixing part is placed in the groove or extends from the groove to the cast-in-place part.
4. The connecting structure of the prefabricated integral bay window of claim 3, wherein said lower connecting assembly comprises a beam-end embedded part, a bottom plate embedded part and a connecting box connecting the two together, said connecting box comprising at least two bolts, nuts and a box body with an open bottom, said bolts passing through said box body and being fixedly connected with said beam-end embedded part or said bottom plate embedded part respectively by said nuts.
5. The connecting structure of the prefabricated integral bay window of claim 4, wherein the beam-end embedded part comprises a second sliding groove, an open end of the second sliding groove faces the box body and is flush with a side surface of the prefabricated part, and a tip of at least one of the bolts is clamped in the second sliding groove.
6. The connecting structure of a prefabricated integral bay window according to claim 5, wherein said connecting box further comprises an adjusting bolt, a fixing hole matched with said adjusting bolt is provided on the top wall of said box body, and said adjusting bolt is inserted into said fixing hole from above said top wall and fixed on said top wall.
7. The connecting structure of the prefabricated integral bay window of claim 4, wherein a notch for accommodating said box body is provided at the intersection of said side wall and said bottom plate.
8. The connecting structure of the prefabricated integral bay window of any one of claims 1 to 7, wherein said prefabricated part extends upward near the top side of said prefabricated integral bay window to form a reverse sill, said reverse sill having a height equal to the height of said cast-in-place part.
9. The connecting structure of the prefabricated integral bay window of claim 8, further comprising a prefabricated floor slab, wherein a step-shaped notch is formed in the splicing side of the prefabricated floor slab, the bottom surface of the step-shaped notch is placed on the indoor top surface of the prefabricated part, and the step-shaped notch and the cast-in-place part are provided with through-length additional steel bars and filled with cast-in-place concrete.
10. A method of assembling a prefabricated integral bay window attachment structure as claimed in any one of claims 1 to 9, comprising the steps of:
s1, hoisting and positioning the prefabricated part of the superposed beam, fixing the box body in the lower connecting component at the bottom side of the prefabricated part,
s2, hoisting and positioning the prefabricated integral convex window, leveling the elevation, fixing the temporary support, and connecting and fixing the bottom plate and the box body;
and S3, arranging an upper connecting assembly, pouring concrete of a cast-in-place part of the superposed beam, and removing the temporary support after curing and forming.
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| CN201910967381.3A CN110761400B (en) | 2019-10-12 | 2019-10-12 | Connecting structure of prefabricated integral convex window and assembling method thereof |
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| CN201910967381.3A CN110761400B (en) | 2019-10-12 | 2019-10-12 | Connecting structure of prefabricated integral convex window and assembling method thereof |
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Address after: No. 410000, shaping street, Changsha, Kaifu City, Hunan Province Patentee after: Zhuyou Zhizao Technology Industry Group Co.,Ltd. Address before: 10 Zhongshi Road, shaping street, Kaifu District, Changsha City, Hunan Province Patentee before: Zhongmin zhuyou Technology Industry Co.,Ltd. |
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Effective date of registration: 20211220 Address after: 5 / F, office building 2, Zhongmin zhuyou Co., Ltd., No. 10, Zhongshi Road, shaping street, Kaifu District, Changsha City, Hunan Province, 410000 Patentee after: Zhuyou Zhizao Technology Investment Co.,Ltd. Address before: No. 410000, shaping street, Changsha, Kaifu City, Hunan Province Patentee before: Zhuyou Zhizao Technology Industry Group Co.,Ltd. |