CN210636685U - Steel bar connecting structure of precast concrete beam and precast concrete vertical component - Google Patents
Steel bar connecting structure of precast concrete beam and precast concrete vertical component Download PDFInfo
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- CN210636685U CN210636685U CN201921297978.3U CN201921297978U CN210636685U CN 210636685 U CN210636685 U CN 210636685U CN 201921297978 U CN201921297978 U CN 201921297978U CN 210636685 U CN210636685 U CN 210636685U
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Abstract
The utility model discloses a steel bar connecting structure of a precast concrete beam and a precast concrete vertical component, which comprises a first threaded sleeve pre-embedded in the connecting surface of the precast concrete vertical component and a second threaded sleeve pre-embedded in the connecting surface of the precast concrete beam; the first threaded sleeve and the second threaded sleeve correspond to each other one by one, one end of the first threaded sleeve is fixed with the longitudinal steel bar in the precast concrete vertical component, one end of the second threaded sleeve is fixed with the longitudinal steel bar in the precast concrete beam, and the other end of the second threaded sleeve is in threaded connection with the male and female bolts; one end of the male and female bolt is a stud, the other end of the stud is a threaded hole, the stud is in threaded connection with the second threaded sleeve, a stud is in threaded connection in the threaded hole, and the other end of the stud is in threaded connection with the first threaded sleeve; the thread directions of the first threaded sleeve and the second threaded sleeve are opposite; one end of the stud bolt is a positive thread and the other end of the stud bolt is a negative thread. The utility model discloses the advantage lies in having accelerated the construction progress, shortens construction cycle.
Description
Technical Field
The utility model belongs to the technical field of the assembly concrete construction and specifically relates to a reinforced connection structure of precast concrete crossbeam and precast concrete vertical member is related to.
Background
In the fabricated concrete structure, the connection mode of the steel bars at the connection nodes of the concrete beam and the concrete vertical member (such as a concrete column or a shear wall) is a premise that the strength of the cast-in-place section meets the design load requirement. At present, a sleeve grouting technology is commonly adopted in a method for connecting a concrete beam and a concrete vertical member, namely, a sleeve is utilized to connect reinforcing steel bars of two concrete members into a whole, grouting is carried out in the sleeve, and finally a concrete column or a shear wall is poured by adopting a full cast-in-place process to complete the connection of the concrete beam and the concrete vertical member. Although the construction process is definite in stress, a cast-in-place concrete column or a shear wall is needed, the cast-in-place concrete amount is large, the construction progress is influenced, the construction period is long, meanwhile, the steel bar connection mode adopting sleeve grouting is high in concealment, the quality of a connection node is not easy to control, and potential safety hazards exist.
Disclosure of Invention
An object of the utility model is to provide a precast concrete crossbeam and precast concrete vertical member's steel bar connection structure has not only realized the mechanical connection of reinforcing bar, can also realize the prefabrication of concrete vertical member, shortens construction cycle.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the reinforced bar connecting structure of the precast concrete beam and the precast concrete vertical component comprises a first threaded sleeve which is embedded in the connecting surface of the precast concrete vertical component at an upper interval and a lower threaded sleeve which is embedded in the connecting surface of the precast concrete beam at an upper interval and a lower interval; the first threaded sleeves and the second threaded sleeves correspond to each other one by one, one end of each first threaded sleeve is fixedly sleeved with one longitudinal steel bar in the precast concrete vertical component into a whole, one end of each second threaded sleeve is fixedly sleeved with one longitudinal steel bar in the precast concrete beam into a whole, and the other end of each second threaded sleeve is in threaded connection with a male-female bolt; one end of the male and female bolt is a stud, the other end of the male and female bolt is a threaded hole, the stud is in threaded connection with the second threaded sleeve, a stud bolt is in threaded connection in the threaded hole, and the other end of the stud bolt is in threaded connection with the first threaded sleeve; the thread directions of the first threaded sleeve and the second threaded sleeve are opposite; one end of the stud is a positive thread and the other end is a negative thread.
The first threaded sleeve is a positive threaded sleeve, the second threaded sleeve is a negative threaded sleeve, the positive threaded end of the stud bolt is in threaded connection with the first threaded sleeve, the negative threaded end of the stud bolt is in threaded connection with the threaded hole of the male and female bolt, and the stud bolt of the male and female bolt is in threaded connection with the second threaded sleeve.
And a positioning threaded sleeve is pre-embedded in the middle of the connecting surface of the precast concrete beam, an auxiliary positioning bolt is screwed in the positioning threaded sleeve, and the other end of the auxiliary positioning bolt tightly props against the connecting surface of the precast concrete vertical component.
The first threaded sleeve and the second threaded sleeve are in at least two rows.
The precast concrete vertical component is a precast concrete column or a shear wall.
The utility model has the advantages of realizing the mechanical connection of the steel bar in the concrete beam and the steel bar in the concrete vertical member (concrete column or shear wall), simple operation, controllable connection quality and high reliability; simultaneously the utility model discloses a connection structure has realized the mill's prefabrication of concrete vertical member, has reduced cast-in-place concrete volume for the construction progress shortens construction cycle.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2-5 are the construction steps of the present invention.
Detailed Description
As shown in fig. 1, the reinforced connection structure of the precast concrete beam and the precast concrete column of the present invention comprises two rows of first threaded sleeves 2 (namely, positive threaded sleeves) embedded in the connection surface of the precast concrete column 1 (or shear wall) at upper and lower intervals, and two rows of second threaded sleeves 4 (namely, negative threaded sleeves) embedded in the connection surface of the precast concrete beam 3 at upper and lower intervals, wherein the first threaded sleeves 2 and the second threaded sleeves 4 are in one-to-one correspondence, one end of each first threaded sleeve 2 is fixedly sleeved with a longitudinal steel bar 5 in the precast concrete column 1, one end of each second threaded sleeve 4 is fixedly sleeved with a longitudinal steel bar 6 in the precast concrete beam 3, and the other end thereof is screwed with a male and female bolt; one end of the male and female bolts is a stud 7.1, the other end of the male and female bolts is a threaded hole 7.2, the stud 7.1 is screwed into the second threaded sleeve 4, the stud 8 is screwed into the threaded hole 7.2, the positive thread end of the stud 8 is in threaded connection with the first threaded sleeve 2, and the reverse thread end of the stud 8 is in threaded connection with the threaded hole 7.2.
In order to ensure the connection reliability of the precast concrete beam 3 and the precast concrete column 1, a positioning threaded sleeve 9 is pre-embedded in the middle of the connection surface of the precast concrete beam 3, an auxiliary positioning bolt 10 is screwed in the positioning threaded sleeve 9, and the other end of the auxiliary positioning bolt 10 abuts against the connection surface of the precast concrete column 1.
During actual construction, use the precast concrete vertical component as precast concrete post 1 for example, explain specifically the utility model discloses the connection structure's of reinforcing bar in 3 interior reinforcing bars of precast concrete crossbeam and two precast concrete posts 1 construction method, including following step:
firstly, prefabricating a concrete column 1, embedding two rows of first threaded sleeves 2 (namely positive threaded sleeves) at intervals up and down in a connecting surface of each prefabricated concrete column 1, and fixedly sleeving one end of each positive threaded sleeve positioned in the prefabricated concrete column 1 and one longitudinal steel bar 5 in the prefabricated concrete column 1 into a whole (sleeving one end of each positive threaded sleeve on the end part of the longitudinal steel bar during prefabrication and then welding the positive threaded sleeves into a whole), wherein the concrete structure is shown in a figure 1-2;
secondly, prefabricating the concrete beam 3, embedding two rows of second threaded sleeves 4 (namely reverse threaded sleeves) at intervals up and down in each connecting surface of the precast concrete beam 3, fixedly sleeving one end of the reverse threaded sleeve positioned in the precast concrete beam 3 and one longitudinal steel bar 6 in the precast concrete beam 3 into a whole (sleeving one end of the reverse threaded sleeve on the longitudinal steel bar during prefabrication and then welding the reverse threaded sleeve into a whole), screwing male and female bolts at the other end of the reverse threaded sleeve, screwing one end of the male and female bolts into a stud 7.1 and the other end of the male and female bolts into a threaded hole 7.2, screwing the stud 7.1 into the reverse threaded sleeve, screwing the stud 8 into the threaded hole 7.2, and screwing the reverse threaded end of the stud 8 into the threaded hole 7.2, as shown in fig. 1-2 specifically;
when the concrete column and the precast concrete beam 3 are precast, in order to ensure that the positive thread end of the stud bolt 8 can be screwed into the positive thread sleeve, the positive thread sleeve corresponds to the reverse thread sleeve one by one;
thirdly, embedding a row of positioning threaded sleeves 9 in the middle of each connecting surface of the precast concrete beam 3, and screwing auxiliary positioning bolts 10 in each positioning threaded sleeve 9, as shown in fig. 1 specifically;
fourthly, after the precast concrete columns 1 and the precast concrete beams 3 are precast, firstly, hoisting the two precast concrete columns 1 at the design positions respectively, then hoisting the precast concrete beams 3 on the temporary supports 11 at the design positions, and before hoisting the precast concrete beams 3, firstly, adjusting the screwing-out length of the stud bolts 8 to leave a construction gap between the stud bolts 8 and the precast concrete columns 1, so that the precast concrete beams 3 can be hoisted conveniently, which is particularly shown in fig. 2;
fifthly, screwing each stud bolt 8 on two connecting surfaces of the precast concrete beam 3 respectively, screwing a positive thread end of each stud bolt 8 into a corresponding positive thread sleeve respectively, and adjusting the screwing-out length of an auxiliary positioning bolt 10 according to the designed length of the precast concrete beam 3 so that the other end of the auxiliary positioning bolt 10 is screwed to the connecting surface of the precast concrete column 1, as shown in fig. 3 specifically;
sixthly, screwing the male and female bolts to stretch the stud bolts 8, and after the stud bolts 8 are stretched, supporting the prefabricated concrete column 1 by the auxiliary positioning bolts 10, wherein the concrete is shown in fig. 4;
seventhly, binding beam stirrups at the joint between the precast concrete column and the precast concrete beam 3, erecting a template, and finally pouring micro-expansion fine aggregate concrete to form a cast-in-place section 12, so as to complete the connection between the precast concrete column 1 and the precast concrete beam 3, as shown in fig. 5.
Claims (5)
1. The utility model provides a precast concrete crossbeam and precast concrete vertical member's steel bar connection structure which characterized in that: the device comprises a first threaded sleeve and a second threaded sleeve, wherein the first threaded sleeve is embedded in a connecting surface of a precast concrete vertical component at an upper interval and the second threaded sleeve is embedded in a connecting surface of a precast concrete beam at an upper interval and a lower interval; the first threaded sleeves and the second threaded sleeves correspond to each other one by one, one end of each first threaded sleeve is fixedly sleeved with one longitudinal steel bar in the precast concrete vertical component into a whole, one end of each second threaded sleeve is fixedly sleeved with one longitudinal steel bar in the precast concrete beam into a whole, and the other end of each second threaded sleeve is in threaded connection with a male-female bolt; one end of the male and female bolt is a stud, the other end of the male and female bolt is a threaded hole, the stud is in threaded connection with the second threaded sleeve, a stud bolt is in threaded connection in the threaded hole, and the other end of the stud bolt is in threaded connection with the first threaded sleeve; the thread directions of the first threaded sleeve and the second threaded sleeve are opposite; one end of the stud is a positive thread and the other end is a negative thread.
2. The structure of connecting reinforcing bars of a precast concrete beam and a precast concrete vertical member according to claim 1, characterized in that: the first threaded sleeve is a positive threaded sleeve, the second threaded sleeve is a negative threaded sleeve, the positive threaded end of the stud bolt is in threaded connection with the first threaded sleeve, the negative threaded end of the stud bolt is in threaded connection with the threaded hole of the male and female bolt, and the stud bolt of the male and female bolt is in threaded connection with the second threaded sleeve.
3. The structure of connecting reinforcing bars of a precast concrete beam and a precast concrete vertical member according to claim 1, characterized in that: and a positioning threaded sleeve is pre-embedded in the middle of the connecting surface of the precast concrete beam, an auxiliary positioning bolt is screwed in the positioning threaded sleeve, and the other end of the auxiliary positioning bolt tightly props against the connecting surface of the precast concrete vertical component.
4. The structure of connecting reinforcing bars of a precast concrete beam and a precast concrete vertical member according to claim 1, characterized in that: the first threaded sleeve and the second threaded sleeve are in at least two rows.
5. The structure of connecting reinforcing bars of a precast concrete beam and a precast concrete vertical member according to claim 1, characterized in that: the precast concrete vertical component is a precast concrete column or a shear wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921297978.3U CN210636685U (en) | 2019-08-12 | 2019-08-12 | Steel bar connecting structure of precast concrete beam and precast concrete vertical component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921297978.3U CN210636685U (en) | 2019-08-12 | 2019-08-12 | Steel bar connecting structure of precast concrete beam and precast concrete vertical component |
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| CN210636685U true CN210636685U (en) | 2020-05-29 |
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| CN201921297978.3U Active CN210636685U (en) | 2019-08-12 | 2019-08-12 | Steel bar connecting structure of precast concrete beam and precast concrete vertical component |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338166A (en) * | 2021-06-17 | 2021-09-03 | 中国十七冶集团有限公司 | Method for fine adjustment during installation of concrete prefabricated T-shaped beam |
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2019
- 2019-08-12 CN CN201921297978.3U patent/CN210636685U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338166A (en) * | 2021-06-17 | 2021-09-03 | 中国十七冶集团有限公司 | Method for fine adjustment during installation of concrete prefabricated T-shaped beam |
| CN113338166B (en) * | 2021-06-17 | 2022-06-10 | 中国十七冶集团有限公司 | Method for fine adjustment during installation of concrete prefabricated T-shaped beam |
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