CN219315995U - Precast beam - Google Patents
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- CN219315995U CN219315995U CN202223406995.0U CN202223406995U CN219315995U CN 219315995 U CN219315995 U CN 219315995U CN 202223406995 U CN202223406995 U CN 202223406995U CN 219315995 U CN219315995 U CN 219315995U
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Abstract
The utility model provides a precast beam which is of a T-shaped structure and comprises a precast beam body with a T-shaped longitudinal section and a steel reinforcement framework positioned in the precast beam body, wherein the precast beam body comprises a transverse part and a vertical part which is positioned on the upper end surface of the transverse part and is vertically arranged, the transverse part and the vertical part extend in the same direction in length, and the middle vertical surface of the transverse part coincides with the middle vertical surface of the vertical part; a square groove penetrating through the left end face and the right end face of the vertical part is formed in the upper end face of the vertical part, and the middle vertical face of the square groove is overlapped with the middle vertical face of the vertical part; two plate connecting pieces are symmetrically arranged on the left end face and the right end face of the transverse part, and are used for being welded and connected with a steel plate on the installation site. The precast beam has a firm structure, greatly reduces construction difficulty on projects, accelerates construction progress, and simultaneously enhances structural points of the beam side edges and precast floor boards.
Description
Technical Field
The utility model belongs to the technical field of building components, and particularly relates to a precast beam.
Background
The assembled building is formed by assembling prefabricated parts on a construction site and is divided into five types of building block building, plate building, box type building, skeleton plate building and lifting plate and storey building according to prefabricated part forms and construction methods. A large number of building parts in the assembled building are produced and processed by workshops, and prefabricated parts mainly comprise external wall boards, internal wall boards, superimposed sheets, balconies, air-conditioning boards, stairs, prefabricated beams, prefabricated columns and the like. Unlike existing building construction, cast-in-place operation of the fabricated building is greatly reduced, and only assembly operation is needed on site. Because the assembled building adopts the integrated design and construction of building and decoration, the decoration can be synchronously carried out along with the construction of the main body. The assembled building can save a large amount of raw materials in the construction process, so that the industrialization and industrialized production of the building are realized. The existing precast beam has the defects of high factory die cost, incapability of recycling, difficult binding of stirrups of the beam, extremely high requirement on the flatness of the side edge of the beam and high construction difficulty.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the precast beam, which greatly reduces construction difficulty on projects and accelerates construction progress.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the precast beam is of a T-shaped structure and comprises a precast beam body with a T-shaped longitudinal section and a reinforcement cage positioned in the precast beam body, wherein the precast beam body comprises a transverse part and a vertical part which is positioned on the upper end face of the transverse part and is vertically arranged, the transverse part and the vertical part extend in length along the same direction, and the middle vertical face of the transverse part coincides with the middle vertical face of the vertical part; a square groove penetrating through the left end face and the right end face of the vertical part is formed in the upper end face of the vertical part, and the middle vertical face of the square groove is overlapped with the middle vertical face of the vertical part; two plate connecting pieces are symmetrically arranged on the left end face and the right end face of the transverse part, and are used for being welded and connected with a steel plate on the installation site.
Further, the steel reinforcement framework comprises a transverse portion steel reinforcement framework and a vertical portion steel reinforcement framework, and the lower end of the vertical portion steel reinforcement framework extends to the bottom end of the transverse portion.
Further, the transverse portion reinforcement cage comprises a plurality of first bending reinforcement bars which are arranged at intervals along the length direction of the transverse portion, the longitudinal section of each first bending reinforcement bar is rectangular, and the long rods of the first bending reinforcement bars are mutually perpendicular to the height direction of the transverse portion; the two second bending steel bars and a third bending steel bar are symmetrically arranged on the vertical portion of each first bending steel bar, the upper end and the lower end of each second bending steel bar are respectively hooped on the upper long rod and the lower long rod of each first bending steel bar, the two ends of each third bending steel bar are respectively hooped on the middle parts of the two wide rods of each first bending steel bar, and the second bending steel bars and the third bending steel bars are mutually perpendicular.
Further, the second bending steel bar and the third bending steel bar are formed by bending one steel bar and comprise cross bars and bending bars positioned at two ends of the cross bars, the bending bars are arranged in mirror symmetry relative to the perpendicular bisectors of the cross bars, and the cross bars of the third bending steel bar are larger than the cross bars of the second bending steel bar; the second bending steel bar is hooped on the long bar of the first bending steel bar through the bending bar, and the third bending steel bar is hooped on the wide bar of the first bending steel bar through the bending bar.
Further, the transverse portion reinforcement cage further comprises a plurality of first straight reinforcements, the plurality of first straight reinforcements are respectively arranged in four corners of the first bending reinforcement, in the bending angle of the second bending reinforcement and in the bending angle of the third bending reinforcement, and the first straight reinforcements located in the bending angle of the second bending reinforcement and in the bending angle of the third bending reinforcement are located in the first bending reinforcement.
Further, the vertical portion reinforcement cage includes that a plurality of fourth bending steel bars and fifth bending steel bars are arranged at intervals along vertical portion length direction, and the lower extreme of fourth bending steel bars and fifth bending steel bars extends to the plane where the lower part stock with first bending steel bars is located, and the upper end extends to the top of vertical portion up end, and the fourth bending steel bars are located square recess, and the both sides of fifth bending steel bars width direction are located the outside of the width direction both sides of square recess.
Further, the fourth bending steel bar and the fifth bending steel bar are formed by bending a steel bar and comprise a round-corner rectangular outer steel bar and a U-shaped inner steel bar, the U-shaped inner steel bar is formed by surrounding two end parts of the steel bar after bending in the same mode, the U-shaped inner steel bar is positioned in an included angle at the bottom of the round-corner rectangular outer steel bar and is obliquely arranged at the same angle relative to the width direction and the height direction of the round-corner rectangular outer steel bar, and the arc part of the U-shaped inner steel bar is a round corner of the round-corner rectangular; the heights of the fourth bending steel bar and the fifth bending steel bar are the same, and the upper cross bar and the lower cross bar of each fourth bending steel bar and one fifth bending steel bar are tightly attached.
Further, the vertical reinforcement cage further comprises a plurality of first straight reinforcements and second straight reinforcements, the first straight reinforcements and the second straight reinforcements extend from the left end of the precast beam body to the right end of the precast beam body, and two ends of the second right-angle reinforcements extend out of the precast beam body; the plurality of first straight steel bars are symmetrically arranged in the fifth bending steel bar in two groups, the two groups of first straight steel bars are clung to the two vertical bars of the fifth bending steel bar, each group of first straight steel bars are arranged at intervals from top to bottom, the first straight steel bar positioned at the uppermost part is adjacent to the lower end face of the square groove, and the first straight steel bar positioned at the lowermost part is positioned below the upper long bar of the first bending steel bar and clung to the upper long bar of the first bending steel bar; the second straight steel bars are respectively arranged at intervals from bottom to top on the inner side of the fifth bent steel bar and from the two side fillets of the lower end of the fifth bent steel bar, and are respectively arranged at intervals on the inner side of the fourth bent steel bar and the upper end face of the lower cross bar of the fourth bent steel bar, and the second right-angle steel bars at the two ends are respectively arranged in the two bottom fillets of the fourth bent steel bar.
Further, the left end face and the right end face of the transverse portion and the vertical portion are respectively provided with a key groove, the upper end face of the key groove on the transverse portion and the upper end face of the transverse portion are located in the same horizontal plane, the key groove on the vertical portion is located right above the key groove on the transverse portion, the key grooves are arranged at intervals, and the two plate connecting pieces located on the left end face and the right end face of the transverse portion are symmetrically arranged relative to the key groove on the transverse portion.
Further, the key groove is a trapezoidal groove, the small bottom surface of the trapezoidal table is positioned in the precast beam body, and the large bottom surface of the trapezoidal table and the left and right end surfaces of the precast beam body are positioned in the same vertical plane.
The precast beam is characterized in that the end part of the beam is connected with a project construction site by adopting post-cast concrete, and the side edges of the beam are connected by adopting a plate connecting piece welding mode, so that the construction difficulty on the project is greatly reduced, the construction progress is accelerated, and meanwhile, the side edges of the beam and the structural points of the precast floor edges connected with the side edges of the beam are enhanced.
Drawings
FIG. 1 is a front view of a preform beam according to the present utility model;
fig. 2 is a view of a precast beam Zuo Shitu according to the present utility model;
FIG. 3 is a right side view of a preform beam according to the present utility model;
FIG. 4 is a top view of a preform beam according to the present utility model;
fig. 5 is a front view of a reinforcement cage according to the present utility model;
fig. 6 is a left side view of the reinforcement cage according to the present utility model.
The steel bar comprises a 1-precast beam body, a 2-transverse part steel bar framework, a 3-plate connecting piece, a 4-vertical part steel bar framework, a 5-key groove, an 11-transverse part, a 12-transverse part, a 121-square groove, a 21-first bending steel bar, a 22-first straight steel bar, a 23-second bending steel bar, a 24-third bending steel bar, a 41-fourth bending steel bar, a 42-fifth bending steel bar, a 43-second straight steel bar, a 411-round rectangular outer bar and a 412-U-shaped inner bar.
Detailed Description
The utility model will be further described with reference to the accompanying drawings and specific examples.
The precast beam is of a T-shaped structure and comprises a precast beam body 1 with a T-shaped longitudinal section and a steel reinforcement framework positioned in the precast beam body 1, wherein the precast beam body 1 comprises a transverse portion 11 and a transverse portion 12 which is positioned on the upper end face of the transverse portion 11 and is vertically arranged, the transverse portion 11 and the transverse portion 12 extend in length along the same direction, and the middle vertical face of the transverse portion 11 coincides with the middle vertical face of the transverse portion 12; a square groove 121 penetrating through the left end face and the right end face of the transverse portion 12 is arranged on the upper end face of the transverse portion 12, and the middle vertical face of the square groove 121 coincides with the middle vertical face of the transverse portion 12; two plate connecting pieces 3 are symmetrically arranged on the left end face and the right end face of the transverse part 11, and the plate connecting pieces 3 are used for being welded and connected with a steel plate on an installation site; the left end face and the right end face of the transverse part 11 and the transverse part 12 are respectively provided with a key groove 4, the upper end face of the key groove 4 on the transverse part 11 and the upper end face of the transverse part 11 are positioned in the same horizontal plane, the key groove 4 on the transverse part 12 is positioned right above the key groove 4 on the transverse part 11 and is arranged at intervals, and two plate connecting pieces 3 positioned on the left end face and the right end face of the transverse part 11 are symmetrically arranged relative to the key groove 5 on the transverse part 11; the key groove 5 is a trapezoidal groove, the small bottom surface of the trapezoidal table is positioned in the precast beam body 1, and the large bottom surface of the trapezoidal table and the left and right end surfaces of the precast beam body 1 are positioned in the same vertical plane.
The steel reinforcement framework comprises a transverse portion steel reinforcement framework 2 and a vertical portion steel reinforcement framework 4, and the lower end of the transverse portion steel reinforcement framework 2 extends to the bottom end of the transverse portion.
The transverse portion reinforcement cage 2 comprises a plurality of first bending reinforcement bars 21 and a plurality of first straight reinforcement bars 22 which are arranged at intervals along the length direction of the transverse portion 11, the longitudinal section of the first bending reinforcement bars 21 is rectangular, and the long rods of the first bending reinforcement bars 21 are mutually perpendicular to the height direction of the transverse portion 11; two second bending steel bars 23 and a third bending steel bar 24 are respectively hooped on each first bending steel bar 21, the two second bending steel bars 23 are symmetrically arranged relative to the transverse portion 12, the upper end and the lower end of each second bending steel bar 23 are respectively hooped on the upper long rod and the lower long rod of each first bending steel bar 21, the two ends of each third bending steel bar 24 are respectively hooped in the middle of the two wide rods of each first bending steel bar 21, and the second bending steel bars 23 and the third bending steel bars 24 are mutually perpendicular.
The second bending steel bar 23 and the third bending steel bar 24 are formed by bending one steel bar and respectively comprise a cross bar and bending bars positioned at two ends of the cross bar, the two bending bars are positioned at the same side of the cross bar, the included angle between the bending bars and the cross bar is an acute angle, the bending bars are arranged in mirror symmetry relative to the perpendicular bisectors of the cross bar, and the cross bar of the third bending steel bar 24 is larger than the cross bar of the second bending steel bar 23; the second bending steel bar 23 is hooped on the long bar of the first bending steel bar 21 through the bending bar, and the third bending steel bar 24 is hooped on the wide bar of the first bending steel bar 21 through the bending bar thereon; the plurality of first straight reinforcing bars 22 are respectively arranged in four corners of the first bending reinforcing bar 21, in the bending angle of the second bending reinforcing bar 23 and in the bending angle of the third bending reinforcing bar 24, and the first straight reinforcing bars 22 positioned in the bending angles of the second bending reinforcing bar 23 and the third bending reinforcing bar 24 are positioned in the first bending reinforcing bar 21.
The vertical portion reinforcement cage 4 includes that a plurality of fourth bending reinforcement 41, a plurality of fifth bending reinforcement 42, a plurality of first straight reinforcement 22 and a plurality of second straight reinforcement 43 are arranged at intervals along the length direction of the transverse portion 12, the lower ends of the fourth bending reinforcement 41 and the fifth bending reinforcement 42 extend to the plane where the lower portion long rod of the first bending reinforcement 21 is located, the upper end extends to the upper side of the upper end face of the vertical portion 12, the fourth bending reinforcement 41 is located in the square groove 121, and the two sides of the width direction of the fifth bending reinforcement 42 are located on the outer sides of the two sides of the width direction of the square groove 121.
The fourth bending steel bar 41 and the fifth bending steel bar 42 are formed by bending a steel bar and respectively comprise a round-angle rectangular outer steel bar 411 and a U-shaped inner steel bar 412, the U-shaped inner steel bar 412 is formed by bending two end parts of the steel bar in the same mode, the U-shaped inner steel bar 412 is positioned in an included angle at the bottom of the round-angle rectangular outer steel bar 411 and is obliquely arranged at the same angle relative to the width direction and the height direction of the round-angle rectangular outer steel bar 411, and the arc-shaped part of the U-shaped inner steel bar 412 is a round angle of the round-angle rectangular; the heights of the fourth bending steel bar 41 and the fifth bending steel bar 42 are the same, and the upper cross bar and the lower cross bar of each fourth bending steel bar 41 and one fifth bending steel bar 42 are closely arranged.
The first straight steel bars 22 and the second straight steel bars 43 extend from the left end of the precast beam body 1 to the right end of the precast beam body 1, and both ends of the second right-angle steel bars 43 extend out of the precast beam body 1; the first straight steel bars 22 are divided into two groups symmetrically arranged in the fifth bending steel bar 42, the two groups of first straight steel bars 22 are clung to the two vertical rods of the fifth bending steel bar 42, each group of first straight steel bars 22 are arranged at intervals from top to bottom, the first straight steel bar 22 at the uppermost position is adjacent to the lower end face of the square groove 121121, the first straight steel bar 22 at the lowermost position is positioned below the upper long rod of the first bending steel bar 21 and clung to the upper long rod of the first bending steel bar 21; the second straight bars 43 are respectively arranged at intervals from bottom to top on the inner side of the fifth bending bar 42 from the two side fillets of the lower end of the fifth bending bar 42, and are respectively arranged at intervals on the inner side of the fourth bending bar 41 and the upper end surface of the lower cross bar of the fourth bending bar 41, and the second right-angle bars 43 at the two ends are respectively arranged in the two bottom fillets of the fourth bending bar 41.
The above is merely a preferred embodiment of the present utility model, and the scope of the present utility model is not limited to the above embodiments, but any simple modification, equivalent variation and modification of the above embodiments according to the technical matters of the present utility model should be considered as the scope of the present utility model for those skilled in the art.
Claims (10)
1. The precast beam is characterized by comprising a precast beam body with a T-shaped longitudinal section and a steel reinforcement framework positioned in the precast beam body, wherein the precast beam body comprises a transverse part and a vertical part which is positioned on the upper end surface of the transverse part and is vertically arranged, the transverse part and the vertical part extend in the same direction in length, and the middle vertical surface of the transverse part coincides with the middle vertical surface of the vertical part; a square groove penetrating through the left end face and the right end face of the vertical part is formed in the upper end face of the vertical part, and the middle vertical face of the square groove is overlapped with the middle vertical face of the vertical part; two plate connecting pieces are symmetrically arranged on the left end face and the right end face of the transverse part, and are used for being welded and connected with a steel plate on the installation site.
2. The precast beam of claim 1, wherein the reinforcement cage comprises a transverse portion reinforcement cage and a vertical portion reinforcement cage, and a lower end of the vertical portion reinforcement cage extends to a bottom end of the transverse portion.
3. The precast beam according to claim 2, wherein the transverse portion reinforcement cage comprises a plurality of first bending reinforcements arranged at intervals along the length direction of the transverse portion, the longitudinal section of the first bending reinforcements is rectangular, and the long rods of the first bending reinforcements are perpendicular to the height direction of the transverse portion; the two second bending steel bars and a third bending steel bar are symmetrically arranged on the vertical portion of each first bending steel bar, the upper end and the lower end of each second bending steel bar are respectively hooped on the upper long rod and the lower long rod of each first bending steel bar, the two ends of each third bending steel bar are respectively hooped on the middle parts of the two wide rods of each first bending steel bar, and the second bending steel bars and the third bending steel bars are mutually perpendicular.
4. A precast beam according to claim 3, wherein the second bending steel bar and the third bending steel bar are formed by bending one steel bar, each of the second bending steel bar and the third bending steel bar comprises a cross bar and bending bars positioned at two ends of the cross bar, the bending bars are arranged in mirror symmetry relative to a perpendicular bisector of the cross bar, and the cross bar of the third bending steel bar is larger than the cross bar of the second bending steel bar; the second bending steel bar is hooped on the long bar of the first bending steel bar through the bending bar, and the third bending steel bar is hooped on the wide bar of the first bending steel bar through the bending bar.
5. The precast beam of claim 4, wherein the transverse section reinforcement cage further comprises a plurality of first straight reinforcements, the plurality of first straight reinforcements being disposed within four corners of the first bent reinforcement, within a corner of the second bent reinforcement, and within a corner of the third bent reinforcement, respectively, the first straight reinforcements being disposed within the corner of the second bent reinforcement and within the corner of the third bent reinforcement, respectively.
6. The precast beam according to claim 2, wherein the vertical portion reinforcement cage comprises a plurality of fourth bending reinforcement bars and fifth bending reinforcement bars which are arranged at intervals along the length direction of the vertical portion, the lower ends of the fourth bending reinforcement bars and the fifth bending reinforcement bars extend to the plane where the lower long rods of the first bending reinforcement bars are located, the upper ends of the fourth bending reinforcement bars extend to the upper portion of the upper end face of the vertical portion, the fourth bending reinforcement bars are located in the square grooves, and two sides of the width direction of the fifth bending reinforcement bars are located on the outer sides of two sides of the width direction of the square grooves.
7. The precast beam according to claim 6, wherein the fourth bending steel bar and the fifth bending steel bar are formed by bending a steel bar, each steel bar comprises a round-corner rectangular outer steel bar and a U-shaped inner steel bar, the U-shaped inner steel bar is formed by surrounding two end parts of the steel bar after bending in the same form, the U-shaped inner steel bar is positioned in an included angle at the bottom of the round-corner rectangular outer steel bar, and is obliquely arranged at the same angle relative to the width direction and the height direction of the round-corner rectangular outer steel bar, and the arc-shaped part of the U-shaped inner steel bar is a round corner of the round-corner rectangular; the heights of the fourth bending steel bar and the fifth bending steel bar are the same, and the upper cross bar and the lower cross bar of each fourth bending steel bar and one fifth bending steel bar are tightly attached.
8. The precast beam of claim 7, wherein the vertical section reinforcement cage further comprises a plurality of first straight reinforcements and second straight reinforcements, each extending from the left end of the precast beam to the right end of the precast beam, and each of the two ends of the second right-angle reinforcements extending outside the precast beam; the plurality of first straight steel bars are symmetrically arranged in the fifth bending steel bar in two groups, the two groups of first straight steel bars are clung to the two vertical bars of the fifth bending steel bar, each group of first straight steel bars are arranged at intervals from top to bottom, the first straight steel bar positioned at the uppermost part is adjacent to the lower end face of the square groove, and the first straight steel bar positioned at the lowermost part is positioned below the upper long bar of the first bending steel bar and clung to the upper long bar of the first bending steel bar; the second straight steel bars are respectively arranged at intervals from bottom to top on the inner side of the fifth bent steel bar and from the two side fillets of the lower end of the fifth bent steel bar, and are respectively arranged at intervals on the inner side of the fourth bent steel bar and the upper end face of the lower cross bar of the fourth bent steel bar, and the second right-angle steel bars at the two ends are respectively arranged in the two bottom fillets of the fourth bent steel bar.
9. The precast beam according to claim 1, wherein the transverse portion and the vertical portion are provided with a key groove on the left and right end faces thereof, the upper end face of the key groove on the transverse portion and the upper end face of the transverse portion are located in the same horizontal plane, the key groove on the vertical portion is located right above the key groove on the transverse portion, the key grooves are arranged at intervals, and the two plate connecting pieces located on the left and right end faces of the transverse portion are symmetrically arranged relative to the key groove on the transverse portion.
10. A precast beam according to claim 9, wherein the key groove is a stepped groove, the small bottom surface of the stepped is located in the precast beam body, and the large bottom surface of the stepped and the left and right end surfaces of the precast beam body are located in the same vertical plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223406995.0U CN219315995U (en) | 2022-12-16 | 2022-12-16 | Precast beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223406995.0U CN219315995U (en) | 2022-12-16 | 2022-12-16 | Precast beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219315995U true CN219315995U (en) | 2023-07-07 |
Family
ID=87034402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223406995.0U Active CN219315995U (en) | 2022-12-16 | 2022-12-16 | Precast beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219315995U (en) |
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2022
- 2022-12-16 CN CN202223406995.0U patent/CN219315995U/en active Active
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