CN110565796A - Connecting structure and construction method for prefabricated hollow column superposed beam - Google Patents
Connecting structure and construction method for prefabricated hollow column superposed beam Download PDFInfo
- Publication number
- CN110565796A CN110565796A CN201910944951.7A CN201910944951A CN110565796A CN 110565796 A CN110565796 A CN 110565796A CN 201910944951 A CN201910944951 A CN 201910944951A CN 110565796 A CN110565796 A CN 110565796A
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- hollow column
- column
- superposed
- steel bars
- composite
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- 238000010276 construction Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 80
- 239000010959 steel Substances 0.000 claims abstract description 80
- 239000002131 composite material Substances 0.000 claims abstract description 60
- 229910000746 Structural steel Inorganic materials 0.000 claims abstract description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 11
- 238000009417 prefabrication Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract 1
- 238000009415 formwork Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 210000003205 muscle Anatomy 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
the invention relates to a connecting structure and a construction method of a prefabricated hollow column superposed beam. A connecting structure of a prefabricated hollow column superposed beam comprises a hollow column and a superposed beam which are connected with each other; reserving beam nests in beam-column connection areas of the hollow columns according to the size of the superposed beams, and normally arranging stirrups of the hollow columns in the range of the beam nests; the bottom longitudinal stress steel bar and the beam side structural steel bar or the twisted steel bar of the composite beam are mechanically or collingly connected within the span range of 1/3 of the support of the composite beam outside the hollow column; the upper longitudinal stressed steel bars of the composite beam are mechanically or collingly connected within the span range of 1/3 of the composite beam outside the hollow column. The method for constructing the steel bars in the core area of the prefabricated concrete hollow column beam column has the advantages of high construction speed and high installation efficiency, and accords with the industrialized development trend of prefabricated and standardized buildings.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a connecting structure of a prefabricated hollow column superposed beam and a construction method.
Background
At present, the development of an assembly type frame structure system tends to be mature, prefabricated column components in a conventional assembly type concrete frame structure are too heavy, steel bar binding and formwork erection in a beam column core area are extremely difficult, the concrete pouring construction quality is not easy to guarantee, and the industrialization degree is low.
Disclosure of Invention
the invention aims to provide a connecting structure and a construction method of a prefabricated hollow column superposed beam, which not only solve the problem that longitudinal stress steel bars at the bottom and the upper part of the superposed beam and beam side structural bars or button bars cannot be installed due to the fact that a hollow column is normally provided with stirrups in a beam column core area, but also solve the problem that a template is arranged under the premise that a beam pit is not arranged in the hollow column range in the beam column core area, and the like.
Embodiments of the invention may be implemented as follows:
In a first aspect, an embodiment of the present invention provides a connecting structure for a precast hollow column composite beam, including:
the hollow columns and the superposed beams are connected with each other;
Reserving beam nests in beam-column connection areas of the hollow columns according to the size of the superposed beams, and normally arranging stirrups of the hollow columns in the range of the beam nests;
The bottom longitudinal stress steel bar and the beam side structural steel bar or the twisted steel bar of the composite beam are mechanically or collingly connected within the span range of 1/3 of the support of the composite beam outside the hollow column;
The upper longitudinal stressed steel bars of the composite beam are mechanically or collingly connected within the span range of 1/3 of the composite beam outside the hollow column.
in an alternative embodiment, when the hollow column is a side column or a corner column, beam sockets are reserved on both sides of the column body.
In an alternative embodiment, when the hollow column is a center column, beam sockets are reserved on four sides of the column body.
In an optional embodiment, the side line of the beam nest is made into a rough surface, and the stirrup of the hollow column is normally arranged in the range of the beam nest;
the connecting steel bars are placed in the beam-column core area in advance before the laminated beam is installed.
in an optional implementation mode, the longitudinal stressed steel bars of the superposed beam and the pre-embedded connecting steel bars arranged in the hollow column beam nest range in advance are mechanically or collingly connected.
In an optional embodiment, the longitudinal stressed steel bars on the upper part of the composite beam penetrate through the hollow column beam nest to be mechanically or collingly connected within 1/3 span of the composite beam, and the joint rate of the longitudinal stressed steel bars is not more than 50%.
In an optional embodiment, the longitudinal stressed steel bars at the lower part of the composite beam penetrate through the hollow column beam nest to be mechanically or collingly connected within 1/3 span of the support of the composite beam, and the joint rate of the longitudinal stressed steel bars is not more than 50%.
in an optional embodiment, the side waist bars or the twisted bars of the composite beam penetrate through the hollow column beam pits to be mechanically or collingly connected within 1/3 span of the support of the composite beam, and the joint ratio of the steel bars is not more than 50%.
In an optional embodiment, the upper and lower reinforcing steel bars for constructing the waist bar are staggered by more than or equal to one beam height; the adjacent torsion-resistant waist ribs are staggered by more than or equal to 0.3LL or 0.3LLE。
in a second aspect, an embodiment of the present invention provides a construction method, where the construction method includes the following steps:
Reserving beam nests in beam-column connection areas of the hollow columns according to the size of the superposed beams, and normally arranging stirrups of the hollow columns in the range of the beam nests;
the bottom longitudinal stress steel bar and the beam side structural steel bar or the twisted steel bar of the composite beam are mechanically or collingly connected within the span range of 1/3 of the support of the composite beam outside the hollow column;
And the upper longitudinal stressed steel bars of the composite beam are mechanically or collingly connected within the span range of 1/3 of the composite beam outside the hollow column, so that the connecting structure of the prefabricated hollow column composite beam is obtained.
The beneficial effects of the embodiment of the invention include, for example:
(1) the method for constructing the steel bars in the beam-column core area of the fabricated concrete precast hollow column solves the problem that the longitudinal stress steel bars at the bottom of the superposed beam and the beam side construction steel bars or the button steel bars cannot be installed in the beam-column core area due to the fact that the hollow column is normally provided with the stirrups.
(2) The method for constructing the reinforcing steel bars in the beam-column core area of the fabricated concrete hollow column solves the problem that the formwork is arranged on the premise that no beam nest is arranged in the range of the beam-column core area hollow column, and the beam formwork is only arranged at the joint of the reinforcing steel bars at the overlapped beam ends, so that the rapid construction of the frame structure of the fabricated concrete hollow column is realized, and the method conforms to the industrialized development trend of fabricated and standardized buildings.
drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a first structural diagram of the present embodiment;
FIG. 2 is a second structural diagram of the present embodiment;
FIG. 3 is a third structural diagram of the present embodiment;
fig. 4 is a fourth structural diagram of the present embodiment.
icon: 1-hollow column stirrup net sheet; 2-hollow column formwork; 21-hollow column beam nest side line; 3-connecting the hollow column with the reinforcing steel bars in a longitudinal stress manner; 4-connecting reinforcing steel bars under the lower part of the superposed beam in a longitudinal stress manner; 5-a beam side construction rib or a twisted rib is connected with a steel bar; 6-connecting reinforcing steel bars on the upper part of the superposed beam in a longitudinal stress manner; 7-longitudinal stressed steel bars at the lower part of the superposed beam; 8-constructing ribs or twisting ribs at the beam side; 9-longitudinal stressed steel bars on the upper part of the superposed beam; 10-a laminated beam stirrup; 11-the longitudinal stressed steel bars of the superposed beam are mechanically or colligating connected; 12-laminated beam concrete.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
in the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
referring to fig. 1 to 4, the present embodiment provides a connecting structure of a prefabricated hollow column and a composite beam, which includes a hollow column and a composite beam connected to each other.
reserving beam nests in beam-column connection areas of the hollow columns according to the size of the superposed beams, and normally arranging stirrups of the hollow columns in the range of the beam nests;
the longitudinal stress steel bars and the beam side structural bars or the twisted bars at the lower part of the superposed beam are mechanically or collingly connected within the span range of 1/3 (one third) of the superposed beam support outside the hollow column;
the upper longitudinal stressed steel bars of the composite beam are mechanically or collingly connected within the span range of 1/3 (one third) of the composite beam outside the hollow column.
Compared with the prior art that the supporting template is required to be arranged within the range of the hollow column to cause inconvenience and the like, the connecting structure of the prefabricated hollow column superposed beam not only solves the difficult problem that the bottom and upper longitudinal stressed steel bars and beam side structural steel bars or button steel bars of the superposed beam cannot be installed due to the fact that the hollow column is normally provided with the stirrups in the beam column core area, but also solves the difficult problems that the template is arranged under the premise that the beam nest is not arranged within the range of the hollow column in the beam column core area, and the like.
Fig. 1 is a schematic diagram of a hollow column beam-column composite beam connection structure, which is a schematic diagram of a beam nest design reserved in a hollow column, fig. 2 is a schematic diagram of a hollow column beam-column core area composite beam connection steel bar, fig. 3 is a vertical view of a hollow column beam-column core area steel bar connection, and fig. 4 is a cross-sectional view of a hollow column beam-column core area steel bar connection.
please continue to refer to fig. 1 to 4 for further structural details. As can be seen from the figures, in an alternative embodiment, when the hollow column is a side or corner column, beam sockets are reserved on both sides of the column.
in an alternative embodiment, when the hollow column is a center column, beam sockets are reserved on four sides of the column body.
In an optional embodiment, the side line of the beam nest is made into a rough surface, and the stirrup of the hollow column is normally arranged in the range of the beam nest;
the connecting steel bars are placed in the beam-column core area in advance before the laminated beam is installed.
Further, as shown in fig. 1, the hollow column includes a hollow column stirrup net sheet 1, a hollow column formwork 2, a hollow column beam nest side line 21, and a hollow column longitudinal stress connecting steel bar 3. Wherein the hollow column stirrup net piece 1 and the hollow column longitudinal stress connecting steel bar 3 are arranged in the hollow column formwork 2 and are molded by concrete pouring. As can be seen from fig. 2, when the hollow column is connected to the composite beam, in the core area of the beam column, the longitudinal stressed connecting steel bars 4 at the lower part of the composite beam, the beam side structural steel bars or twisted steel bar connecting steel bars 5, and the longitudinal stressed connecting steel bars 6 at the upper part of the composite beam are all connected to the hollow column stirrup net sheet 1 and the longitudinal stressed connecting steel bars 3 of the hollow column, and then the hollow column is ready to be cast and molded.
in this embodiment, the beam recess is roughened. As indicated by the rough surface C in fig. 2.
with continued reference to fig. 3 and 4, in an alternative embodiment, the longitudinal stressed steel bars of the composite beam are mechanically or collingly connected with pre-embedded connecting steel bars arranged in advance in the hollow column beam nest.
In an optional embodiment, the longitudinal stress steel bars 9 on the upper part of the composite beam penetrate through the hollow column beam nest to be mechanically or collinearly connected within 1/3 span of the composite beam, and the joint rate of the longitudinal stress steel bars is not more than 50%.
In an optional embodiment, the longitudinal stressed steel bars 7 at the lower part of the composite beam penetrate through the hollow column beam nest to be mechanically or collingly connected within the range of 1/3 span of the support of the composite beam, and the joint rate of the longitudinal stressed steel bars is not more than 50%.
In an optional embodiment, the side waist bars or the twisted bars of the composite beam penetrate through the hollow column beam pits to be mechanically or collingly connected within 1/3 span of the support of the composite beam, and the joint ratio of the steel bars is not more than 50%.
As can be seen from the figure, the superposed beam comprises mutually connected superposed beam lower longitudinal stress connecting steel bars 4, beam side structural steel bars or twisted steel bar connecting steel bars 5, superposed beam upper longitudinal stress connecting steel bars 6, superposed beam lower longitudinal stress steel bars 7, beam side structural steel bars or twisted steel bars 8, superposed beam upper longitudinal stress steel bars 9, superposed beam stirrups 10 and superposed beam longitudinal stress steel bar mechanical connection or binding connection 11, and the steel bars are cast and molded through superposed beam concrete 12.
further, in an optional embodiment, the upper and lower reinforcing steel bars for constructing the lumbar muscle are staggered by more than or equal to one beam height; the adjacent anti-torsion waist bars are staggered by more than or equal to 0.3LL or 0.3 LLE.
It should be noted that the structural lumbar muscle here includes beam side structural muscle or twisted muscle connecting reinforcement 5 and longitudinal stress connecting reinforcement 4 under the composite beam; the torsion-resistant wale comprises a composite beam side construction bar or torsion bar 8 and a lower longitudinal stress steel bar 7 of the composite beam.
The embodiment of the invention also provides a construction method, which comprises the following steps:
reserving beam nests in beam-column connection areas of the hollow columns according to the size of the superposed beams, and normally arranging stirrups of the hollow columns in the range of the beam nests;
the longitudinal stressed steel bars 7 at the lower part of the superposed beam and the beam side structural steel bars or twisted steel bars 8 are mechanically or collingly connected within the span range of 1/3 of the support of the superposed beam outside the hollow column;
And the longitudinal stress steel bars 9 on the upper part of the composite beam are mechanically or collingly connected within the span range of 1/3 of the composite beam outside the hollow column, so that the connecting structure of the prefabricated hollow column composite beam is obtained.
The beneficial effects of the embodiment of the invention include, for example:
(1) the method for constructing the steel bars in the beam-column core area of the fabricated concrete precast hollow column solves the problem that the longitudinal stress steel bars at the lower part of the superposed beam and the beam side construction steel bars or the button steel bars cannot be installed in the beam-column core area due to the fact that the hollow column is normally provided with the stirrups.
(2) The method for constructing the reinforcing steel bars in the beam-column core area of the fabricated concrete hollow column solves the problem that the formwork is arranged on the premise that no beam nest is arranged in the range of the beam-column core area hollow column, and the beam formwork is only arranged at the joint of the reinforcing steel bars at the overlapped beam ends, so that the rapid construction of the frame structure of the fabricated concrete hollow column is realized, and the method conforms to the industrialized development trend of fabricated and standardized buildings.
the above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a hollow post composite beam connection structure of prefabrication which characterized in that includes:
The hollow columns and the superposed beams are connected with each other;
Reserving beam nests in beam-column connection areas of the hollow columns according to the size of the superposed beams;
The bottom longitudinal stress steel bar and the beam side structural steel bar or the twisted steel bar of the superposed beam are mechanically or collingly connected within the span range of 1/3 of the support of the superposed beam outside the hollow column;
The upper longitudinal stressed steel bars of the composite beam are mechanically or collingly connected within the span range of 1/3 of the composite beam outside the hollow column.
2. The connecting structure of the precast hollow column composite beam according to claim 1, wherein:
the hollow column is a side column or a corner column, and beam pits are reserved on two sides of the column.
3. The connecting structure of the precast hollow column composite beam according to claim 1, wherein:
the hollow column is a center column, and beam pits are reserved on four sides of the column.
4. the connecting structure of the precast hollow column composite beam according to claim 1, wherein:
The side line of the beam nest is made into a rough surface, and the stirrup of the hollow column is normally arranged within the beam nest range;
And placing connecting reinforcing steel bars in the beam-column core area in advance before the laminated beam is installed.
5. the connecting structure of the precast hollow column composite beam according to claim 1, wherein:
and the longitudinal stressed steel bars of the superposed beam are mechanically or collingly connected with the embedded connecting steel bars arranged in the beam nest range of the hollow column.
6. the precast hollow column-superposed beam connection structure according to any one of claims 1 to 5, wherein:
And the longitudinal stressed steel bars on the upper part of the composite beam penetrate through the hollow column beam pit to be mechanically or collingly connected within the span range of 1/3 of the span of the composite beam, and the joint rate of the longitudinal stressed steel bars is not more than 50%.
7. The precast hollow column-superposed beam connection structure according to any one of claims 1 to 5, wherein:
And the longitudinal stressed steel bars at the lower part of the composite beam penetrate through the hollow column beam pit to be mechanically or collingly connected within the 1/3 span range of the support of the composite beam, and the joint rate of the longitudinal stressed steel bars is not more than 50%.
8. The precast hollow column-superposed beam connection structure according to any one of claims 1 to 5, wherein:
The side waist bar or the twisted bar of the composite beam penetrates through the hollow column beam nest to be mechanically or collingly connected within the 1/3 span range of the support of the composite beam, and the joint rate of the steel bar is not more than 50%.
9. The connecting structure of the precast hollow column composite beam according to claim 1, wherein:
The distance between the upper and lower reinforcing steel bars of the adjacent structural waist bars in the height direction of the superposed beam is greater than or equal to the height of one beam;
The distance between the adjacent anti-torsion waist bars in the length direction of the superposed beam is more than or equal to 0.3LL or 0.3LLE。
10. A construction method is characterized in that:
The construction method comprises the following steps:
Reserving a beam nest in a beam-column connection area of the hollow column according to the size of the composite beam, wherein stirrups of the hollow column are normally arranged in the range of the beam nest;
The bottom longitudinal stress steel bar and the beam side structural steel bar or the twisted steel bar of the superposed beam are mechanically or collingly connected within the span range of 1/3 of the support of the superposed beam outside the hollow column;
And the upper longitudinal stressed steel bars of the composite beam are mechanically or collingly connected within the span range of 1/3 of the composite beam outside the hollow column to obtain the connecting structure of the prefabricated hollow column composite beam as claimed in any one of claims 1 to 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910654633 | 2019-07-19 | ||
| CN2019106546337 | 2019-07-19 |
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| Publication Number | Publication Date |
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| CN110565796A true CN110565796A (en) | 2019-12-13 |
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| CN201910944951.7A Pending CN110565796A (en) | 2019-07-19 | 2019-09-30 | Connecting structure and construction method for prefabricated hollow column superposed beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006272A (en) * | 2021-02-01 | 2021-06-22 | 中建科技集团有限公司 | Assembly type prestressed concrete frame system and construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204385909U (en) * | 2014-10-27 | 2015-06-10 | 江南大学 | A kind of assembly concrete framework composition node with Self-resetting function |
| CN106836547A (en) * | 2017-03-07 | 2017-06-13 | 安徽天筑建设（集团）有限公司 | The construction method of prefabricated assembled shear wall structure |
| CN108487461A (en) * | 2018-03-20 | 2018-09-04 | 东南大学 | Precast prestressed concrete frame bean column node with additional bar and sleeve |
| CN108867855A (en) * | 2018-08-24 | 2018-11-23 | 三筑工科技有限公司 | Vertically concrete frame structure body and book moulding body are overlapped with horizontal entirety |
| CN109267698A (en) * | 2018-11-29 | 2019-01-25 | 三筑工科技有限公司 | Pretensioned prestressing welding stirrup mesh sheet laminated frame is set a roof beam in place and its construction method |
| CN210827829U (en) * | 2019-07-19 | 2020-06-23 | 三一筑工科技有限公司 | Connecting structure of prefabricated hollow column superposed beam |
-
2019
- 2019-09-30 CN CN201910944951.7A patent/CN110565796A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204385909U (en) * | 2014-10-27 | 2015-06-10 | 江南大学 | A kind of assembly concrete framework composition node with Self-resetting function |
| CN106836547A (en) * | 2017-03-07 | 2017-06-13 | 安徽天筑建设（集团）有限公司 | The construction method of prefabricated assembled shear wall structure |
| CN108487461A (en) * | 2018-03-20 | 2018-09-04 | 东南大学 | Precast prestressed concrete frame bean column node with additional bar and sleeve |
| CN108867855A (en) * | 2018-08-24 | 2018-11-23 | 三筑工科技有限公司 | Vertically concrete frame structure body and book moulding body are overlapped with horizontal entirety |
| CN109267698A (en) * | 2018-11-29 | 2019-01-25 | 三筑工科技有限公司 | Pretensioned prestressing welding stirrup mesh sheet laminated frame is set a roof beam in place and its construction method |
| CN210827829U (en) * | 2019-07-19 | 2020-06-23 | 三一筑工科技有限公司 | Connecting structure of prefabricated hollow column superposed beam |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006272A (en) * | 2021-02-01 | 2021-06-22 | 中建科技集团有限公司 | Assembly type prestressed concrete frame system and construction method |
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Address after: 102200 1st floor, building 6, No.8 Beiqing Road, Huilongguan town, Changping District, Beijing Applicant after: Sany Construction Technology Co.,Ltd. Address before: 410000 Sany industrial city, Sany Road, Changsha Economic and Technological Development Zone, Hunan Province Applicant before: SANY CONSTRUCTION TECHNOLOGY Co.,Ltd. |