CN211597390U - Steel bar connecting structure of vertical steel bars of prefabricated shear wall - Google Patents
Steel bar connecting structure of vertical steel bars of prefabricated shear wall Download PDFInfo
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- CN211597390U CN211597390U CN201922343662.XU CN201922343662U CN211597390U CN 211597390 U CN211597390 U CN 211597390U CN 201922343662 U CN201922343662 U CN 201922343662U CN 211597390 U CN211597390 U CN 211597390U
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Abstract
The utility model discloses a steel bar connection structure of vertical steel bars of a prefabricated shear wall, which comprises lower vertical steel bars and upper vertical steel bars, wherein the lower vertical steel bars are embedded in a connecting surface of the lower prefabricated shear wall at intervals, the upper vertical steel bars are embedded in a connecting surface of the upper prefabricated shear wall at intervals, and a plurality of lower vertical steel bars and a plurality of upper vertical steel bars are in one-to-one correspondence from top to bottom; go up vertical reinforcing bar bottom and expand outward and form the last connector that has the external screw thread, the movable sleeve is equipped with the connecting sleeve that has the internal thread hole on the lower vertical reinforcing bar, connecting sleeve with go up connector threaded connection as an organic whole. The utility model has the advantages of simple structure, can realize going up the prefabrication of shear force wall, reduce the cast-in-place volume of job site, shorten construction cycle. During construction, the connection of the upper vertical steel bar and the lower vertical steel bar can be realized only by screwing the connecting sleeve and the upper connector together, and certain tensile stress can be generated at the joint of the upper shear wall and the lower shear wall, so that the crack of the joint can be better controlled, and the quality of the shear wall is ensured.
Description
Technical Field
The utility model belongs to the technical field of the assembled concrete construction and specifically relates to a steel bar connection structure of vertical reinforcing bar of precast shear wall is related to.
Background
In the fabricated concrete structure, the vertical steel bars at the connecting nodes of the precast concrete vertical members (such as concrete columns or shear walls) need to be connected in a reliable connection mode, so that the connecting nodes have enough strength to meet the requirement of design load. At present, the vertical steel bars at the joints of the concrete vertical members are usually connected into a whole by using a sleeve grouting technology, namely, the steel bars of the two concrete members are connected into a whole by using the sleeve, 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 technology to complete the connection of the two concrete vertical members. Although the construction process is definite in stress, the requirement of load can be designed by the anger of am; but need cast-in-place concrete column or shear force wall, cast-in-place concrete volume is big, influences the construction progress, and the construction period is long, and the reinforcing bar connected mode that adopts the sleeve grout simultaneously is disguised strong, is difficult to the quality of control connection node, has the potential safety hazard.
Disclosure of Invention
An object of the utility model is to provide a steel bar mechanical connection structure of vertical reinforcing bar of precast shear wall need not to rotate or remove the mechanical connection that the reinforcing bar can realize the reinforcing bar.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the steel bar connecting structure of the vertical steel bars of the prefabricated shear wall comprises lower vertical steel bars pre-embedded in a connecting surface of the lower prefabricated shear wall at intervals and upper vertical steel bars pre-embedded in a connecting surface of the upper prefabricated shear wall at intervals, wherein the lower vertical steel bars and the upper vertical steel bars are in one-to-one correspondence from top to bottom;
go up vertical reinforcing bar bottom and expand outward and form the connector, go up the connector surface and seted up the external screw thread, movable sleeve is equipped with the connecting sleeve that has the internal thread hole on the lower vertical reinforcing bar, the connecting sleeve with go up connector threaded connection as an organic whole.
The top of the lower vertical steel bar is expanded to form a limiting head consisting of an upper cylindrical section and a lower circular truncated cone section, and the limiting head is used for preventing the connecting sleeve from being separated from the lower vertical steel bar.
The outer surface of the connecting sleeve is of a regular hexagon structure.
The utility model has the advantages of simple structure, can realize going up the prefabrication of shear force wall, reduce the cast-in-place volume of job site, shorten construction cycle. During construction, the connection of the upper vertical steel bar and the lower vertical steel bar can be realized only by screwing the connecting sleeve and the upper connector together, and certain tensile stress can be generated at the joint of the upper shear wall and the lower shear wall, so that the crack of the joint can be better controlled, and the quality of the shear wall is ensured.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the coupling sleeve of fig. 1.
Fig. 3-9 are the construction process diagrams of the steel bar mechanical connection structure of the present invention.
Fig. 10 is a sectional view in the direction of a-a in fig. 9.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1, the reinforcing steel bar connecting structure of the vertical reinforcing steel bars of the prefabricated shear wall of the utility model comprises lower vertical reinforcing steel bars 2 embedded in the connecting surface of the lower prefabricated shear wall 1 at intervals and upper vertical reinforcing steel bars 4 embedded in the connecting surface of the upper prefabricated shear wall 3 at intervals, wherein the lower vertical reinforcing steel bars 2 and the upper vertical reinforcing steel bars 4 are in one-to-one correspondence from top to bottom;
the bottom of the upper vertical steel bar 4 is expanded to form an upper connector 5, the outer surface of the upper connector 5 is provided with external threads, a connecting sleeve 6 with an internal thread hole is movably sleeved on the lower vertical steel bar 2, and the connecting sleeve 6 and the upper connector 5 are connected into a whole in a threaded manner;
the top of the lower vertical steel bar 2 is expanded to form a limiting head 7 consisting of an upper cylindrical section and a lower circular truncated cone section, and the lower part of the connecting sleeve 6 is clamped on the limiting head 7 to prevent the connecting sleeve 6 from being separated from the lower vertical steel bar 2.
As shown in fig. 2, the outer surface of the connecting sleeve 6 has a regular hexagonal structure for easy screwing.
During actual construction, the concrete construction method of the steel bar mechanical connection structure comprises the following steps:
firstly, upsetting one end part of each upper vertical steel bar 4 and threading to form an upper connector 5 with external threads, upsetting one end part of each lower vertical steel bar 2 to form a limiting head 7 consisting of a lower circular truncated cone section and an upper cylindrical section, and then penetrating a connecting sleeve 6 with an internal thread hole from the other end of each lower vertical steel bar 2 to complete the processing operation of the upper vertical steel bar 4 and the lower vertical steel bar 2, wherein the specific structure is shown in fig. 3;
secondly, prefabricating the upper shear wall, embedding the upper vertical steel bars 4 obtained by processing in the first step at intervals at the edge of the connecting surface of the upper shear wall during prefabrication, reserving an upper mounting hole 8 at the edge of the upper shear wall corresponding to each upper vertical steel bar 4 to expose the upper connector 5, and roughening the connecting surface of the upper connector, wherein the concrete structure is shown in fig. 4;
thirdly, prefabricating the lower shear wall, embedding the lower vertical steel bars 2 processed in the first step at intervals at the edge of a connecting surface of the lower shear wall during prefabrication, reserving mounting holes 9 at the edge of the lower shear wall corresponding to each lower vertical steel bar 2 to expose the connecting sleeve 6 and the limiting head 7, and roughening the connecting surface of the connecting sleeve and the limiting head, wherein the specific structure is shown in fig. 5;
in order to facilitate later grouting and plugging, the top wall of the upper mounting hole 8 is of an inclined plane structure which extends from the top of the upper mounting hole to the inside in an inclined manner, and the cross sections of the upper mounting hole 8 and the lower mounting hole 9 are of a trapezoidal structure with wide outer ends and narrow inner ends, as shown in fig. 9-10;
during actual construction, an upper shear wall and a lower shear wall can be prefabricated at the same time, and the lower shear wall can be prefabricated firstly and then the upper shear wall is prefabricated;
fourthly, coating a layer of mortar on the upper surface of the prefabricated lower shear wall, and then hoisting the upper prefabricated shear wall 3 obtained in the second step onto the lower prefabricated shear wall 1, wherein the upper vertical steel bars 4 and the lower vertical steel bars 2 are in one-to-one correspondence from top to bottom, as shown in fig. 6;
the upper mounting hole 8 and the lower mounting hole 9 are communicated up and down to form a screwing hole, and then each connecting sleeve 6 is sequentially screwed with the corresponding upper connector 5 to complete the connection operation of the upper vertical steel bar 4 and the lower vertical steel bar 2, as shown in fig. 7.
As shown in fig. 8, after all the upper vertical steel bars 4 and all the lower vertical steel bars 2 are connected, a baffle plate 10 for plugging the upper mounting hole 8 and the lower mounting hole 9 is erected at the connection position of the lower prefabricated shear wall 1 of the upper prefabricated shear wall 3, and the upper part of the baffle plate 10 is of an inclined plane structure extending from the top of the baffle plate to the upper prefabricated shear wall 3 in an inclined manner, so that grouting is facilitated; then pouring mortar into the upper mounting hole 8 and the lower mounting hole 9 from the top of the baffle 10;
as shown in fig. 9, after the mortar is solidified, the baffle 10 is removed, and the connection operation of the upper prefabricated shear wall 3 and the lower prefabricated shear wall 1 is completed.
The utility model discloses a connection structure has realized the mill prefabrication of upper shear wall and lower shear wall, has shortened construction cycle; only need pour into mounting hole 8 and mounting hole can at the job site, wet work volume is few, has further shortened construction cycle, has reduced the operation degree of difficulty.
The utility model discloses an it is as an organic whole with lower vertical reinforcing bar 2 through last connector 5 and 6 threaded connection of connecting sleeve to go up vertical reinforcing bar 4, the mechanical connection of vertical reinforcing bar 2 down can not only be realized under the circumstances of irrotational, unmovable reinforcing bar, still make down vertical reinforcing bar 2 and last vertical reinforcing bar 4 obtain certain tensile stress and bear certain construction load, effectively subtract on-the-spot support and template, shortened construction cycle.
The utility model discloses an go up the tensile stress that vertical reinforcement 4 and lower vertical reinforcement 2 obtained, make and go up prefabricated shear force wall 3 and lower prefabricated shear force wall 1's connected node and produce corresponding tensile stress, can control the crack of the two junction better, guarantee the quality of shear force wall.
In the description of the present invention, it should be noted that the terms "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Claims (3)
1. The utility model provides a steel bar connection structure of vertical reinforcing bar of precast shear wall which characterized in that: the prefabricated shear wall comprises lower vertical steel bars embedded in a connecting surface of a lower prefabricated shear wall at intervals and upper vertical steel bars embedded in a connecting surface of an upper prefabricated shear wall at intervals, wherein the lower vertical steel bars and the upper vertical steel bars are in one-to-one correspondence from top to bottom;
go up vertical reinforcing bar bottom and expand outward and form the connector, go up the connector surface and seted up the external screw thread, movable sleeve is equipped with the connecting sleeve that has the internal thread hole on the lower vertical reinforcing bar, the connecting sleeve with go up connector threaded connection as an organic whole.
2. The reinforcing steel bar connecting structure of the vertical reinforcing steel bars of the prefabricated shear wall according to claim 1, characterized in that: the top of the lower vertical steel bar is expanded to form a limiting head consisting of an upper cylindrical section and a lower circular truncated cone section, and the limiting head is used for preventing the connecting sleeve from being separated from the lower vertical steel bar.
3. The reinforcing steel bar connecting structure of the vertical reinforcing steel bars of the prefabricated shear wall according to claim 1, characterized in that: the outer surface of the connecting sleeve is of a regular hexagon structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922343662.XU CN211597390U (en) | 2019-12-24 | 2019-12-24 | Steel bar connecting structure of vertical steel bars of prefabricated shear wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922343662.XU CN211597390U (en) | 2019-12-24 | 2019-12-24 | Steel bar connecting structure of vertical steel bars of prefabricated shear wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211597390U true CN211597390U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922343662.XU Active CN211597390U (en) | 2019-12-24 | 2019-12-24 | Steel bar connecting structure of vertical steel bars of prefabricated shear wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211597390U (en) |
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2019
- 2019-12-24 CN CN201922343662.XU patent/CN211597390U/en active Active
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