CN114319583A - Connecting structure of prefabricated frame beam and prefabricated frame column - Google Patents
Connecting structure of prefabricated frame beam and prefabricated frame column Download PDFInfo
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- CN114319583A CN114319583A CN202111560871.5A CN202111560871A CN114319583A CN 114319583 A CN114319583 A CN 114319583A CN 202111560871 A CN202111560871 A CN 202111560871A CN 114319583 A CN114319583 A CN 114319583A
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- 238000010276 construction Methods 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 18
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 32
- 239000010959 steel Substances 0.000 claims description 32
- 238000003466 welding Methods 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 7
- 230000005484 gravity Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 5
- 239000004568 cement Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 239000011150 reinforced concrete Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The application provides a connection structure of prefabricated frame roof beam and prefabricated frame post relates to the assembled structure field. The method comprises the following steps: prefabricating frame columns and prefabricated frame beams; a bracket is arranged on the side surface of the prefabricated frame column, and a connecting sleeve and a connecting plate are arranged in the prefabricated frame column above the bracket; the section of the prefabricated frame beam is I-shaped, a rectangular connecting block with the area larger than that of the prefabricated frame beam is formed at the end part of the prefabricated frame beam, and the rectangular connecting block is provided with a connecting through hole; the end part of the prefabricated frame beam is placed on the bracket, the connecting through hole of the rectangular connecting block is connected with the connecting sleeve through the penetrating screw rod, a gap with a preset size is formed between the rectangular connecting block and the side surface of the prefabricated frame column, and the gap is used for filling a filling material. The connecting structure of the prefabricated frame beam and the prefabricated frame column is in rigid connection in the construction stage, and can effectively resist the action of gravity load and wind load; during construction, temporary supports do not need to be arranged, concrete wet operation is avoided, construction cost can be reduced, and construction period is shortened.
Description
Technical Field
The application relates to the field of assembly type structures, in particular to a connecting structure of a prefabricated frame beam and a prefabricated frame column.
Background
At present, for an assembly type concrete frame structure, a single-layer prefabricated frame column is adopted by a common frame column, a superposed beam is adopted by a frame beam, the frame beam and the frame column are rigidly connected through a post-pouring node, and the stress performance of the assembly type integral frame structure with post-pouring of a node area is equivalent to that of a cast-in-place structure, and the anti-seismic performance is good.
However, the connection mode has the problems that the prefabricated part has steel bars, the steel bars in the node area are dense, the concrete on site is subjected to wet operation, temporary support and templates are needed, and the like, which are difficult to solve.
The prefabricated frame beam with the I-shaped section can effectively save the material consumption, reduce the dead weight, has small factory prefabrication difficulty and has obvious advantages under the conditions of large span, heavy load and the like.
For the prefabricated I-shaped frame beam, if the prefabricated I-shaped frame beam is connected with the traditional rectangular frame column by adopting the node area post-pouring mode, new problems are added on the basis of the existing problems, such as complex node area templates, unfavorable stress on beam ends and the like.
Therefore, it is necessary to provide a connection structure which is suitable for improving the assembly degree, reducing wet operation and improving construction efficiency and quality according to the characteristics of the prefabricated i-shaped frame beam, so as to more fully exert the advantages of the assembly type structure in the aspects of improving quality and benefit, saving energy and reducing emission.
Disclosure of Invention
The invention mainly aims to provide a connecting structure of a prefabricated frame beam and a prefabricated frame column, and the connecting structure is used for solving the technical problems.
In order to solve the foregoing technical problem, an embodiment of the present application provides the following technical solutions:
this application provides a connection structure of prefabricated frame roof beam and prefabricated frame post on the one hand, includes: the cross section of the prefabricated frame column is rectangular, a bracket is arranged on the side face of the prefabricated frame column, a connecting sleeve and a connecting plate are arranged in the prefabricated frame column above the bracket, and the connecting sleeve is connected with the connecting plate;
the cross section of the prefabricated frame beam is I-shaped, a rectangular connecting block with the area larger than that of the prefabricated frame beam is formed at the end part of the prefabricated frame beam, and the rectangular connecting block is provided with a connecting through hole;
the end part of the prefabricated frame beam is placed on the bracket, the connecting through hole of the rectangular connecting block is connected with the connecting sleeve through a penetrating screw rod, a gap with a preset size is formed between the rectangular connecting block and the side surface of the prefabricated frame column, and the gap is used for filling a filling material.
The object of the invention can be further achieved by the following technical measures.
Optionally, in the connecting structure between the prefabricated frame beam and the prefabricated frame column, the width of the rectangular connecting block is the same as the widths of the upper flange and the lower flange of the prefabricated frame beam, and the first end and the second end of the rectangular connecting block in the length direction protrude out of two surfaces of the upper flange and the lower flange of the prefabricated frame beam;
the connecting through holes comprise a first connecting through hole and a second connecting through hole, the first connecting through hole is formed in the positions, close to the two sides of the web plate of the prefabricated frame beam, of the rectangular connecting block, and the second connecting through holes are formed in the first end and the second end of the rectangular connecting block respectively.
Optionally, in the connection structure of the precast frame beam and the precast frame column, the screw rod is respectively connected with a nut at two sides of the rectangular connection block to fasten the precast frame beam.
Optionally, in the connection structure between the precast frame beam and the precast frame column, a through hole is formed in the middle of the connecting plate, and the side wall of the connecting plate is connected to the connecting sleeve.
Optionally, in the connecting structure between the prefabricated frame beam and the prefabricated frame column, at least two beam top longitudinal ribs are arranged in the upper flange of the prefabricated frame beam at intervals along the length direction, and at least two beam bottom longitudinal ribs are arranged in the lower flange of the prefabricated frame beam at intervals along the length direction;
the beam top longitudinal rib and the beam bottom longitudinal rib are respectively connected with the steel ribs.
Optionally, in the connection structure between the prefabricated frame beam and the prefabricated frame column, the steel rib includes a first plate body, a second plate body and a longitudinal connecting plate;
the longitudinal connecting plates are positioned between the first plate body and the second plate body and are respectively connected with the first plate body and the second plate body, the number of the longitudinal connecting plates is two, the longitudinal connecting plates are arranged at intervals, and the longitudinal connecting plates are arranged along the length direction of the rectangular connecting block;
the first plate body and the second plate body are provided with a first through hole and a plurality of tapered welding holes, the first through hole is communicated with the connecting through hole, and the beam top longitudinal rib and the beam bottom longitudinal rib are connected with the tapered welding hole through-hole plug welding respectively.
Optionally, in the connecting structure between the prefabricated frame beam and the prefabricated frame column, the steel rib further includes a plurality of stiffening ribs, and the stiffening ribs are respectively disposed between the first plate body and the second plate body and respectively connected to the first plate body, the second plate body and the longitudinal connecting plate.
Optionally, the aforementioned connection structure of the precast frame beam and the precast frame column further includes:
the steel rib is characterized by comprising a plurality of stirrups which are hooped on the surface of the steel rib at intervals.
Optionally, in the connection structure of the precast frame beam and the precast frame column, a width of a gap of a predetermined size formed between the rectangular connection block and a side surface of the precast frame column is 20 to 30 mm.
By means of the technical scheme, the connecting structure of the prefabricated frame beam and the prefabricated frame column at least has the following advantages:
according to the connecting structure of the prefabricated frame beam and the prefabricated frame column, the bracket is arranged on the prefabricated frame column, so that the end part of the prefabricated frame beam can be placed on the bracket, a temporary support is not required to be arranged on site, the connecting sleeve and the connecting plate are arranged on the prefabricated frame column in advance, the rectangular connecting block with a large area is arranged at the end part of the prefabricated frame beam, the connecting through hole is formed in the rectangular connecting block, and after the prefabricated frame beam is placed on the bracket, the prefabricated frame beam and the prefabricated frame column can be rigidly connected through the screw rod, so that the stability of the construction process is guaranteed.
Therefore, the assembly structure of the connecting structure of the prefabricated frame beam and the prefabricated frame column provided by the embodiment of the invention does not need to be provided with a temporary support during construction, does not have concrete wet operation, can avoid taking traditional construction measures, reduces the construction cost and accelerates the construction period; in the construction stage, the prefabricated frame beam and the prefabricated frame column are in rigid connection, so that the effects of gravity load and wind load can be completely resisted, and the construction safety is effectively ensured; during construction, filling materials such as high-strength cement-based grouting materials are poured into a reserved gap between the end part of the prefabricated frame beam and the side surface of the prefabricated frame column, and after the strength of the filling materials meets design requirements, the connection stress performance of the prefabricated beam column in the use stage is equal to that of a cast-in-place structure, so that the prefabricated beam column has good anti-seismic performance; in addition, the connecting fittings for connecting the prefabricated frame beam and the prefabricated frame column are simple screw rods, connecting sleeves, connecting plates and the like, so that the prefabricated frame beam and the prefabricated frame column are easy to process, low in manufacturing cost, and convenient for engineering popularization and large-scale application.
In conclusion, the connecting structure of the prefabricated frame beam and the prefabricated frame column has reasonable stress in the construction stage and the use stage, can ensure the safety of the structure, has simple field construction process, is convenient for operators to master, and is easy to ensure the construction quality.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:
fig. 1 schematically shows a three-dimensional schematic view of a connecting construction of a prefabricated frame beam with a prefabricated frame column;
fig. 2 schematically shows a schematic view of a connection configuration of a prefabricated frame beam to a prefabricated frame column with a beam on one side of the prefabricated frame column;
figure 3 schematically shows a schematic view of a connection configuration of a prefabricated frame beam to a prefabricated frame column with beams on both sides of the prefabricated frame column;
FIG. 4 schematically illustrates a schematic view of a connection plate;
fig. 5 schematically shows a schematic view of a prefabricated frame beam of a connection configuration of a prefabricated frame beam to a prefabricated frame column;
figure 6 schematically shows a transverse cross-sectional view of one of the prefabricated frame beams of figure 5 at the location of the upper flange;
fig. 7 schematically shows a longitudinal cross-sectional view of a prefabricated frame beam of fig. 5 in the plane of the top and bottom longitudinal ribs;
fig. 8 is a schematic view showing a relative position relationship between an internal steel rib and a reinforcing steel bar of a prefabricated frame beam;
fig. 9 schematically shows a schematic view of a steel skeleton of a prefabricated frame beam;
fig. 10 schematically shows a longitudinal cross-sectional view of the steel skeleton of a prefabricated frame beam of fig. 9;
fig. 11 schematically shows a transverse cross-sectional view of the steel skeleton of one of the prefabricated frame girders of fig. 9.
The reference numbers in the drawings are as follows:
the prefabricated frame column comprises a prefabricated frame column 1, a bracket 11, a connecting sleeve 12, a prefabricated frame beam 2, an upper flange 21, a lower flange 22, a web plate 23, a beam top longitudinal rib 24, a beam bottom longitudinal rib 25, a rectangular connecting block 3, a connecting through hole 31, a first connecting through hole 311, a second connecting through hole 312, a steel rib 32, a first plate body 321, a second plate body 322, a longitudinal connecting plate 323, a stiffening rib 324, a first through hole 3211, a stirrup 33, a screw rod 4, a gap 5, a nut 6 and a connecting plate 7.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
As shown in fig. 1 to 4, a connecting structure of a precast frame beam and a precast frame column according to an embodiment of the present invention includes: prefabricating a frame column 1 and a frame beam 2;
a bracket 11 is arranged on the side surface of the prefabricated frame column 1, a connecting sleeve 12 and a connecting plate 7 are arranged in the prefabricated frame column 1 above the bracket 11, and the connecting sleeve 12 is connected with the connecting plate 7; the cross section of the prefabricated frame beam 2 is I-shaped, a rectangular connecting block 3 with the area larger than the sectional area of the prefabricated frame beam 2 is formed at the end part of the prefabricated frame beam 2, and a connecting through hole 31 is formed in the rectangular connecting block 3; the end part of the prefabricated frame beam 2 is placed on the bracket 11, the connecting through hole 31 of the rectangular connecting block 3 is connected with the connecting sleeve 12 through a penetrating screw rod 4, a gap 5 with a preset size is formed between the rectangular connecting block 3 and the side surface of the prefabricated frame column 1, and the gap 5 is used for filling a filling material.
Specifically, the prefabricated frame column 1 is a prefabricated rectangular section component, the height of the prefabricated frame column 1 needs to be set according to the requirements of a building, and for the embodiment of the invention, when the number of structural layers is not more than 3, the prefabricated frame column 1 is prefabricated by adopting the integral through height; when the number of structural layers is greater than 3 layers, prefabricated frame post 1 can be prefabricated for one section by 2 ~ 3 layers, and upper and lower section prefabricated frame post 1 adopts sleeve grout to connect or mechanical connection. The prefabricated frame column 1 and the foundation or the basement are connected through sleeve grouting, mechanical connection or an insertion type cup foundation. The prefabricated frame column 1 can be provided with a plurality of brackets 11 on a plurality of side surfaces at the same height position so as to be connected with a plurality of prefabricated frame beams 2 to form a frame structure of a building in a combined manner, and the prefabricated frame column 1 can also be provided with the bracket 11 on only one side surface at a certain height position according to the design requirement to be connected with the prefabricated frame beams 2.
The bracket 11 can be a reinforced concrete bracket 11 or a steel bracket 11, when the reinforced concrete bracket 11 is adopted, the bracket 11 and the prefabricated frame column 1 are prefabricated together, when the steel bracket 11 is adopted, a steel plate can be pre-embedded on the prefabricated frame column 1, and after the prefabricated frame column 1 is manufactured, the steel bracket 11 and the pre-embedded steel plate are welded.
The connecting sleeve 12 is a metal pipe sleeve with internal threads, the connecting plate 7 is composed of a flat plate with a through hole in the middle and flanges arranged on the periphery of the flat plate, and the flanges of the connecting plate 7 are connected with the connecting sleeve 12, for example, welded. The middle through hole of the connecting plate 7 can be used for concrete to pass through, concrete continuity of the prefabricated frame column 1 is kept, the connecting plate 7 is provided with a flanging, on one hand, in order to be connected with the connecting sleeve 12, on the other hand, the anchoring performance of the connecting plate 7 in the concrete can be enhanced, and further, the pulling force borne by the connecting sleeve 12 is reliably transmitted to the connecting plate and the concrete.
The prefabricated frame beam 2 is required to be set to a proper length according to the needs of a building, but it is noted that the section of the prefabricated frame beam 2 is in an I shape, and the prefabricated frame beam 2 is composed of an upper flange 21, a lower flange 22 and a web plate 23 connecting the upper flange 21 and the lower flange 22. The end part of the prefabricated frame beam 2 is designed to be provided with a rectangular connecting block 3 for an enlarged head, and the rectangular connecting block 3 is also provided with a connecting through hole 31 for connecting with the connecting sleeve 12 of the prefabricated frame column 1 through a screw rod 4.
The gap 5 with a preset size formed between the rectangular connecting block 3 and the side surface of the prefabricated frame column 1 is used for post-pouring filling materials, for example, high-strength cement-based grouting materials are used for realizing fixed connection, and the size of the gap 5 can be adjusted according to the installation precision of the prefabricated frame column 1 and the actual length of the prefabricated frame beam 2.
During construction operation: firstly, arranging a supporting base plate on the top surface of a bracket 11 of a prefabricated frame column 1 and leveling; the supporting base plate can be made of steel plates or plastic plates according to needs, and the size of the supporting base plate is determined according to the supporting area of the end of the precast beam. And then, hoisting the prefabricated frame beam 2, enabling the rectangular connecting block 3 at the end part of the prefabricated frame beam 2 to be placed on the supporting base plate, and enabling the position of the reserved connecting through hole 31 on the rectangular connecting block 3 to correspond to the position of the embedded connecting sleeve 12 on the prefabricated frame column 1. Then, the screw rod 4 penetrates through the reserved connecting through hole 31 and is screwed into the embedded connecting sleeve 12, the screw rod 4 is connected with the nut 6 and the gasket on two sides of the rectangular connecting block 3, and the nut 6 is fastened towards the rectangular connecting block 3. And finally, after all the connecting fittings are fastened, filling materials, such as high-strength cement-based grouting materials, are poured into the gap 5, and the construction of the connecting joint is finished.
According to the connecting structure of the prefabricated frame beam and the prefabricated frame column, the bracket 11 is arranged on the prefabricated frame column 1, so that the end part of the prefabricated frame beam 2 can be placed on the bracket 11, a temporary support is not required to be arranged on site, the connecting sleeve 12 and the connecting plate 7 are arranged on the prefabricated frame column 1 in advance, the rectangular connecting block 3 with a large area is arranged at the end part of the prefabricated frame beam 2, the connecting through hole 31 is formed in the rectangular connecting block 3, and after the prefabricated frame beam 2 is placed on the bracket 11, the prefabricated frame beam 2 and the prefabricated frame column 1 can be rigidly connected through the screw rod 4, and the stability of the construction process is guaranteed.
Therefore, the assembly structure of the connecting structure of the prefabricated frame beam and the prefabricated frame column provided by the embodiment of the invention does not need to be provided with a temporary support during construction, does not have concrete wet operation, can avoid taking traditional construction measures, reduces the construction cost and accelerates the construction period; in the construction stage, the prefabricated frame beam 2 and the prefabricated frame column 1 are in rigid connection, so that the effects of gravity load and wind load can be completely resisted, and the construction safety is effectively ensured; during construction, filling materials such as high-strength cement-based grouting materials are poured into a reserved gap between the end part of the prefabricated frame beam 2 and the side surface of the prefabricated frame column 1, and in the using stage, after the strength of the filling materials meets the design requirements, the connection stress performance of the prefabricated beam column can be equal to that of a cast-in-place structure, and the prefabricated beam column has good anti-seismic performance; in addition, the used connecting accessories for connecting the prefabricated frame beam 2 and the prefabricated frame column 1 are simple screw rods 4, connecting sleeves 12, connecting plates 7 and the like, the processing is very easy, the manufacturing cost is low, and the engineering popularization and the large-scale application are facilitated. In conclusion, the connecting structure of the prefabricated frame beam and the prefabricated frame column has reasonable stress in the construction stage and the use stage, can ensure the safety of the structure, has simple field construction process, is convenient for operators to master, and is easy to ensure the construction quality.
As shown in fig. 5, in an embodiment, the width of the rectangular joint block 3 is the same as the width of the upper and lower flanges 21 and 22 of the prefabricated frame beam 2, and the first and second ends of the rectangular joint block 3 in the length direction protrude from both surfaces of the upper and lower flanges 21 and 22 of the prefabricated frame beam 2; the connecting through hole 31 includes a first connecting through hole 311 and a second connecting through hole 312, the first connecting through hole 311 is formed at a position of the rectangular connecting block 3 near both sides of the web 23 of the prefabricated frame beam 2, and the second connecting through hole 312 is formed at a first end and a second end of the rectangular connecting block 3, respectively.
Specifically, the first end and the second end of the rectangular connecting block 3 may protrude from both surfaces of the upper flange 21 and the lower flange 22 by a distance of 75 to 150mm, the number of the second connecting through holes 312 at the first end and the second end may be 2 to 3, and the first connecting through holes 311 disposed at positions close to both sides of the web 23 may be 1 to 3 at intervals arranged in a row. In order to facilitate the connection of the screw rod 4, the aperture of the connecting through hole 31 is about 10mm larger than the diameter of the screw rod 4, wherein the diameter of the screw rod 4 is determined according to the engineering condition.
As shown in fig. 1 to 3, in the embodiment, the screw rods 4 are respectively connected with nuts 6 at both sides of the rectangular connecting block 3 to fasten the prefabricated frame beam 2.
Specifically, by tightening the nuts 6 on both sides of the rectangular connecting block 3, respectively, the nuts 6 located in the gap 5 can avoid the gap 5 from disappearing due to the action of pressure.
As shown in fig. 5 to 7, in the specific implementation, at least two beam top longitudinal ribs 24 are arranged in the upper flange 21 of the prefabricated frame beam 2 at intervals along the length direction, and at least two beam bottom longitudinal ribs 25 are arranged in the lower flange 22 of the prefabricated frame beam 2 at intervals along the length direction; the rectangular connecting block 3 is provided with a steel rib 32, and the beam top longitudinal rib 24 and the beam bottom longitudinal rib 25 are respectively connected with the steel rib 32.
Specifically, the prefabricated frame beam 2 is made of reinforced concrete, and the thickness of the concrete coated on the outer side of the steel bar needs to meet the requirements of relevant building standards, which is not described herein again. The diameters of the beam top longitudinal rib 24 and the beam bottom longitudinal rib 25 need to be calculated and determined according to stress requirements, and the number of the beam top longitudinal rib 24 and the number of the beam bottom longitudinal rib 25 are preferably two.
As shown in fig. 8-11, in an implementation, the steel skeleton 32 includes a first plate 321, a second plate 322, and a longitudinal connecting plate 323; the longitudinal connecting plates 323 are located between the first plate body 321 and the second plate body 322 and are respectively connected with the first plate body 321 and the second plate body 322, the number of the longitudinal connecting plates 323 is two, the longitudinal connecting plates 323 are arranged at intervals, and the longitudinal connecting plates 323 are arranged along the length direction of the rectangular connecting block 3; the first plate body 321 and the second plate body 322 are provided with a first through hole 3211 communicated with the connecting through hole 31 and a plurality of tapered welding holes at the same height, and the beam top longitudinal rib 24 and the beam bottom longitudinal rib 25 are respectively plug-welded to the tapered welding hole through holes.
Further, the steel skeleton 32 further includes a plurality of stiffening ribs 324, the number of the stiffening ribs 324 is plural, and the plurality of stiffening ribs 324 are respectively disposed between the first plate 321 and the second plate 322, and are respectively connected to the first plate 321, the second plate 322, and the longitudinal connecting plate 323.
Specifically, the thickness of the first plate 321 and the second plate 322 is not less than 6mm, for example, 6mm, 7mm, 8mm, 9mm, 10mm, and the like, and the first plate 321, the second plate 322, and the longitudinal connecting plate 323 are connected by welding; stiffening rib 324 is also connected with first plate 321, second plate 322 and longitudinal connecting plate 323 by welding, and the thickness of stiffening rib 324 is not less than 6mm, for example, 6mm, 7mm, 8mm, 9mm, 10mm, etc.
The dimensions of the first plate 321, the second plate 322 and the longitudinal connecting plate 323 need to be determined according to the stress of the beam end of the prefabricated frame beam 2, the first plate 321 and the second plate 322 need to be provided with a first through hole 3211 and a tapered welding hole, and the taper of the tapered welding hole needs to be set according to the technical requirement of through hole plug welding.
As shown in fig. 8, in a specific implementation, stirrups 33 may be further disposed outside the steel skeleton 32, the stirrups 33 are multiple, the stirrups 33 are alternately hooped on the surface of the steel skeleton 32, and then the stirrups 33 and the steel skeleton 32 are covered with concrete to form the rectangular connecting block 3, that is, after the steel skeleton 32 is connected with the beam top longitudinal bar 24 and the beam bottom longitudinal bar 25, the steel skeleton 32 and the rest of the prefabricated frame beam 2 are covered with a concrete layer.
Specifically, stirrup 33 is arranged along the roof beam direction of height interval of prefabricated frame roof beam 2, follows the length direction interval setting of rectangle connecting block 3 promptly, and stirrup 33 diameter can be 8 ~ 12mm, and the interval is preferred 100mm, and stirrup 33 needs to surround reinforcing bar 32.
In the specific implementation, as shown in fig. 2, when the bracket 11 is arranged on one side of the prefabricated frame column 1 and the prefabricated frame beam 2 is connected, the connecting plate 7 in the prefabricated frame column 1 is only provided with the connecting sleeves 12 on the turned edges connected with one side of the prefabricated frame beam 2, and the other turned edges are not provided with the connecting sleeves 12.
As shown in fig. 3, when the two opposite sides of the prefabricated frame column 1 at a certain height position are both provided with the corbels 11, and the two sides are both connected with the prefabricated frame beam 2, the connecting plates 7 in the prefabricated frame column 1 need to be provided with the connecting sleeves 12 on the flanges connected with the two sides of the prefabricated frame beam 2.
In the concrete implementation, the width of the gap 5 with the preset size formed between the rectangular connecting block 3 and the side surface of the prefabricated frame column 1 is 20-30 mm. When filling the gap with the filling material, the gap is required to be sealed and then filled, and the filling material used for filling is preferably high-strength cement-based grouting material.
It will be appreciated that the relevant features of the devices described above may be referred to one another. In addition, "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent merits of the embodiments.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. A connecting structure of a prefabricated frame beam and a prefabricated frame column, comprising:
the side surface of the prefabricated frame column is provided with a bracket, a connecting sleeve and a connecting plate are arranged in the prefabricated frame column above the bracket, and the connecting sleeve is connected with the connecting plate;
the cross section of the prefabricated frame beam is I-shaped, a rectangular connecting block with the area larger than that of the prefabricated frame beam is formed at the end part of the prefabricated frame beam, and the rectangular connecting block is provided with a connecting through hole;
the end part of the prefabricated frame beam is placed on the bracket, the connecting through hole of the rectangular connecting block is connected with the connecting sleeve through a penetrating screw rod, a gap with a preset size is formed between the rectangular connecting block and the side surface of the prefabricated frame column, and the gap is used for filling a filling material.
2. The connecting construction of a precast frame beam and a precast frame column according to claim 1,
the width of the rectangular connecting block is the same as the width of the upper flange and the width of the lower flange of the prefabricated frame beam, and the first end and the second end of the rectangular connecting block in the length direction protrude out of two surfaces of the upper flange and the lower flange of the prefabricated frame beam;
the connecting through holes comprise a first connecting through hole and a second connecting through hole, the first connecting through hole is formed in the positions, close to the two sides of the web plate of the prefabricated frame beam, of the rectangular connecting block, and the second connecting through holes are formed in the first end and the second end of the rectangular connecting block respectively.
3. The connecting construction of a precast frame beam and a precast frame column according to claim 1 or 2,
and the screw rod is respectively connected with nuts on two sides of the rectangular connecting block so as to fasten the prefabricated frame beam.
4. The connecting construction of a precast frame beam and a precast frame column according to claim 3,
the middle part of the connecting plate is provided with a through hole, and the side wall of the connecting plate is connected with the connecting sleeve.
5. The connecting construction of a precast frame beam and a precast frame column according to claim 3,
at least two beam top longitudinal ribs are arranged in the upper flange of the prefabricated frame beam at intervals along the length direction, and at least two beam bottom longitudinal ribs are arranged in the lower flange of the prefabricated frame beam at intervals along the length direction;
the beam top longitudinal rib and the beam bottom longitudinal rib are respectively connected with the steel ribs.
6. The connecting construction of a precast frame beam and a precast frame column according to claim 4,
the steel rib comprises a first plate body, a second plate body and a longitudinal connecting plate;
the longitudinal connecting plates are positioned between the first plate body and the second plate body and are respectively connected with the first plate body and the second plate body, the number of the longitudinal connecting plates is two, the longitudinal connecting plates are arranged at intervals, and the longitudinal connecting plates are arranged along the length direction of the rectangular connecting block;
the first plate body and the second plate body are provided with a first through hole and a plurality of tapered welding holes, the first through hole is communicated with the connecting through hole, and the beam top longitudinal rib and the beam bottom longitudinal rib are connected with the tapered welding hole through-hole plug welding respectively.
7. The connecting construction of a precast frame beam and a precast frame column according to claim 6,
the reinforcing rib is arranged between the first plate body and the second plate body and is connected with the first plate body, the second plate body and the longitudinal connecting plate respectively.
8. The coupling construction of a precast frame beam and a precast frame column according to claim 7, further comprising:
the steel rib is characterized by comprising a plurality of stirrups which are hooped on the surface of the steel rib at intervals.
9. The connecting construction of a precast frame beam and a precast frame column according to claim 1,
the width of a gap with a preset size formed between the rectangular connecting block and the side surface of the prefabricated frame column is 20-30 mm.
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