CN215167233U - Reinforced sleeve connection prefabricated concrete structure - Google Patents
Reinforced sleeve connection prefabricated concrete structure Download PDFInfo
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- CN215167233U CN215167233U CN202121057207.4U CN202121057207U CN215167233U CN 215167233 U CN215167233 U CN 215167233U CN 202121057207 U CN202121057207 U CN 202121057207U CN 215167233 U CN215167233 U CN 215167233U
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Abstract
The utility model discloses a reinforced sleeve connection prefabricated concrete structure, which comprises two vertically adjacent prefabricated concrete structures and a grouting sleeve positioned at the connection end of the two structures; the prefabricated concrete structure comprises vertical ribs, horizontal ribs and concrete, wherein the vertical ribs comprise reinforcing ribs or reinforcing ribs and non-reinforcing ribs, the diameter of a reinforcing section of each reinforcing rib is larger than that of a reinforcing section of each non-reinforcing section, and the reinforcing sections are formed after upsetting is carried out on the reinforcing sections of the non-reinforcing sections. During construction, the utility model is beneficial to improving the vertical rib strength and the anti-pulling capacity of the joint by arranging the reinforcing ribs; the arrangement of the grouting sleeve is convenient for grouting and makes up the strength loss of the joint; the arrangement of the anti-shearing pieces and the anti-shearing grooves is favorable for ensuring the anti-shearing capability at the position of a connecting horizontal plane and improving the structural integrity; through the setting of grout blanket and shock pad, do benefit to the wholeness of assembled concrete structure when connecting and improve anti-seismic performance.
Description
Technical Field
The utility model belongs to the technical field of the assembly type structure construction, in particular to prefabricated assembled concrete structure of strenghthened type muffjoint.
Background
With the development of the building field, the assembly type building is taken as an important form in building construction and is greatly popularized and applied. During the construction of the assembly type building, the main structural forms are a prefabricated concrete wallboard and a prefabricated concrete column; generally, during the construction of the fabricated concrete structure, the joints are connected through grouting sleeves, so as to form a designed structural system; however, in the construction, the reinforcing steel bars at the connecting sleeve are easy to have load-resisting loss, and the grouting at the connecting node of the prefabricated concrete structure is not easy to be full, the shear-resisting bearing capacity of the horizontal connecting surface is low, and the like, and particularly, the ductility is poor under the action of an earthquake, and brittle failure is easy to occur.
SUMMERY OF THE UTILITY MODEL
The utility model provides a prefabricated assembled concrete structure of strenghthened type muffjoint for the anti year of solving the junction splice bar decreases, the grout is difficult full and joint strength is little, and horizontal joint face technical problem such as bearing capacity that shears is low.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a reinforced sleeve connection prefabricated concrete structure comprises two vertically adjacent prefabricated concrete structures and a grouting sleeve positioned at the connection end of the two prefabricated concrete structures;
the prefabricated concrete structure comprises structural ribs and concrete, the structural ribs comprise vertical ribs and horizontal ribs, the vertical ribs comprise reinforcing ribs or reinforcing ribs and non-reinforcing ribs, the grouting sleeve is connected between the reinforcing ribs or the reinforcing ribs and the non-reinforcing ribs of the adjacent prefabricated concrete structure,
the reinforcing rib consists of reinforcing steel bar sections in reinforcing area and reinforcing steel bar sections in non-reinforcing area, the reinforcing steel bar sections in reinforcing area are located at the end parts of the reinforcing rib,
the reinforced section of the reinforced area is inserted into a grouting sleeve, and the grouting sleeve is inserted into the connection end of the prefabricated concrete structure or the connection end of the adjacent another prefabricated concrete structure; the outer end surface of the grouting sleeve does not expose the end surface of the same side of the prefabricated concrete structure embedded with the grouting sleeve,
the diameter of the reinforcing steel bar section in the reinforcing area is larger than that of the reinforcing steel bar section in the non-reinforcing area, wherein the reinforcing steel bar section in the reinforcing area is formed by upsetting the reinforcing steel bar section in the non-reinforcing area;
the number of the reinforcing ribs is not less than 2, and is not less than 10% of the total number of the vertical ribs;
the length of the reinforcing rib in the prefabricated concrete structure connected with the grouting sleeve is not less than one tenth of the length of the grouting sleeve.
Furthermore, the bearing capacity of the reinforcing steel bar section in the reinforcing area is not less than the sum of the bearing capacity loss value of the grouting sleeve at the corresponding joint and the bearing capacity of the reinforcing steel bar section in the non-reinforcing area after grouting.
Further, the fabricated concrete structure includes a fabricated wall body and/or a fabricated column body.
Further, the prefabricated concrete structure comprises a shear resistant piece connected to one side of the prefabricated concrete structure and a shear resistant groove corresponding to the shear resistant piece and arranged on the adjacent prefabricated concrete structure; one end of the shear resistant part is connected between the vertical ribs of the fabricated concrete structure, and the other end of the shear resistant part is connected in the shear resistant groove; the size of the shear resistant groove is larger than that of the shear resistant piece, and concrete and/or grouting material is poured between the shear resistant groove and the shear resistant piece.
Furthermore, the assembled wall body comprises vertical wall ribs, horizontal wall ribs connected to the vertical wall ribs at intervals, and wall concrete poured between the vertical wall ribs and the horizontal wall ribs; the vertical wall reinforcing ribs comprise vertical wall reinforcing ribs or vertical wall reinforcing ribs and vertical wall non-reinforcing ribs, grouting sleeves are connected between every two adjacent reinforcing ribs or between the reinforcing ribs and the non-reinforcing ribs, and one ends or two ends of the horizontal wall reinforcing ribs extend out of wall concrete and are connected with the horizontal wall reinforcing ribs of the adjacent assembled wall body.
Furthermore, the assembled column body comprises column vertical ribs, column stirrups connected to the column vertical ribs at intervals and column concrete poured and connected to the column vertical ribs and the column stirrups; the column vertical rib comprises a column vertical reinforcing rib or a column vertical reinforcing rib and a column vertical non-reinforcing rib, and a grouting sleeve is connected between two adjacent reinforcing ribs or between the reinforcing rib and the non-reinforcing rib.
Further, the grouting sleeve comprises a full grouting sleeve and a half grouting sleeve.
Furthermore, connecting steel bars are reserved at the joints of the assembly type wall body and/or the assembly type column body, a grouting layer is poured, and a shock insulation cushion layer is arranged between the assembly type wall body and the assembly type column body and the foundation.
The beneficial effects of the utility model are embodied in:
1) the utility model has the advantages that the arrangement of the reinforcing ribs is beneficial to the improvement of the vertical rib strength and the anti-pulling capacity of the joint, and the reinforcing section is inserted into the grouting sleeve, on one hand, the diameter of the reinforcing section is increased, so that the grouting sleeve is convenient to grout, on the other hand, the strength of the reinforcing ribs and the grouting sleeve is correspondingly improved, and the strength loss of the joint can be compensated;
2) the shear resistant piece and the shear resistant groove are arranged, so that the shear resistant capability of the assembled wall body and the assembled cylinder body at the position of a connecting horizontal plane is favorably ensured, and the integrity of the assembled wall body and the assembled cylinder body at the connecting position is improved;
3) the utility model is beneficial to the integrity of the fabricated concrete structure during connection and improves the shock resistance when the fabricated concrete structure is assembled into a corresponding structural system through the arrangement of the grouting layer and the shock pad;
in addition, the utility model discloses the component of using is simple easily to be obtained, and the construction is convenient for, and easily uses when the construction operation, can be favorable to improving the construction quality of assembled structure, greatly strengthens construction safety; additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention; the primary objects and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description.
Drawings
FIG. 1 is a schematic view of an adjacent assembled wall connection;
fig. 2 is a schematic view of a connection structure of adjacent fabricated columns.
FIG. 3 is a schematic view of a connection structure of adjacent assembled walls including shear resistant members;
FIG. 4 is a schematic view of a connection structure of adjacent fabricated columns including shear resistant members.
FIG. 5 is a schematic view of a structure of an assembled wall body containing shear resistant members;
FIG. 6 is a schematic view of a fabricated column structure containing shear members;
FIG. 7 is a schematic view of a reinforcing section bar and grout sleeve connection;
FIG. 8 is a schematic view of a shear groove structure of an assembled wall body;
FIG. 9 is a schematic view illustrating a connection structure of a shear groove and a shear member of an assembled wall body;
FIG. 10 is a schematic view of a fabricated column shear slot configuration;
FIG. 11 is a schematic view of a fabricated cylinder shear groove and shear member connection structure.
Reference numerals: 1-assembled wall body, 11-wall concrete, 12-wall horizontal bar, 2-vertical bar, 21-reinforcing bar, 211-reinforced area reinforcing bar section, 212-non-reinforced area reinforcing bar section, 22-non-reinforcing bar, 3-grouting sleeve, 31-cylinder body, 32-grout outlet, 33-grouting hole, 4-shear resistant piece, 5-shear resistant groove, 6-grouting layer, 7-assembled column body, 71-column concrete and 72-column stirrup.
Detailed Description
As shown in fig. 1 and 2, the prefabricated concrete structure is taken as an assembled wall 1 and an assembled column 7 as an example, wherein the assembled wall 1 is a reinforced system comprising two vertically adjacent assembled walls 1 and a grouting sleeve 3 positioned at the connecting end of the two assembled walls 1.
In the embodiment, the assembled wall body 1 comprises wall vertical ribs 2, wall horizontal ribs 12 connected to the wall vertical ribs 2 at intervals, and wall concrete 11 poured and connected between the wall vertical ribs 2 and the wall horizontal ribs 12; the wall vertical rib 2 is a wall vertical reinforcing rib 21 or a wall vertical reinforcing rib 21 and a wall vertical non-reinforcing rib 22, the reinforcing rib 21 comprises a continuous reinforcing area reinforcing steel bar section 211 and a non-reinforcing area reinforcing steel bar section 212, the reinforcing area reinforcing steel bar section 211 is inserted into the grouting sleeve 3, and the grouting sleeve 3 is embedded in the connecting end of the prefabricated concrete structure or embedded in the connecting end of another adjacent prefabricated concrete structure; the length of the reinforcing rib 21 in the prefabricated concrete structure where the grouting sleeve 3 is connected is one tenth of the length of the grouting sleeve 3.
In this embodiment, the system is strengthened to assembled cylinder 7, including two vertically adjacent assembled cylinder 7 be located the grout sleeve 3 of both links.
In the embodiment, connecting steel bars are reserved at the joints of the assembled wall body 1 and the assembled column body 7, a grouting layer 6 is poured, and the grouting layer 6 is composed of concrete or mortar; when the assembled wall body 1 and the assembled column body 7 are constructed and installed, a shock insulation cushion layer is arranged between the assembled wall body and the foundation respectively, so that the influence of the earthquake action on the installed structure system is reduced.
As shown in fig. 3 and 4, the assembly type wall comprises a shear resistant member 4 connected to one side of the assembly type wall 1 and a shear resistant groove 5 arranged corresponding to the shear resistant member 4 of the adjacent assembly type wall 1 at the other side; the prefabricated concrete structure also comprises a shear resistant part 4 connected to the center of one side of the prefabricated column body 7 and a shear resistant groove 5 corresponding to the shear resistant part 4 and arranged on the adjacent prefabricated concrete structure.
As shown in fig. 5, the assembled wall body 1 comprises wall vertical ribs 2, wall horizontal ribs 12 connected to the wall vertical ribs 2 at intervals, and wall concrete 11 poured between the wall vertical ribs 2 and the wall horizontal ribs 12; the wall vertical ribs 2 are 6, and comprise 4 wall vertical reinforcing ribs 21 and 2 wall vertical non-reinforcing ribs 22; the wall vertical reinforcing rib 21 comprises a reinforcing section 211 and a non-reinforcing section 212, and the wall vertical reinforcing section 211 at one end is inserted into the grouting sleeve 3; two ends of the wall horizontal rib 12 extend out of the wall concrete 11 and are reserved to be connected with the wall horizontal rib 12 of the adjacent assembly type wall body 1; the shear grooves 5 and the shear pieces 4 are arranged on the assembly type wall body 1 at intervals correspondingly.
As shown in fig. 6, the fabricated column 7 includes a column vertical rib 2, a column stirrup 72 connected to the column vertical rib 2 at intervals, and column concrete 71 poured on the column vertical rib 2 and the column stirrup 72; the column vertical ribs 2 comprise column vertical reinforcing ribs 21 and column vertical non-reinforcing ribs 22; the column vertical reinforcing rib 21 comprises a reinforcing section 211 and a non-reinforcing section 212, and the column vertical reinforcing section 211 at one end is inserted into the grouting sleeve 3; the center of the bottom of the assembled column body 7 is connected with a shear resistant part 4, and the adjacent assembled column body 7 corresponding to the top of the column is provided with a shear resistant groove 5.
As shown in fig. 7, the diameter of the reinforced section 211 is larger than that of the non-reinforced section 212, wherein the reinforced section 211 is formed by upsetting the non-reinforced section 212; the external diameter of grout sleeve 3 is greater than the external diameter of reinforcement district reinforcing bar section 211, and wherein grout sleeve includes grout hole 33 and the grout outlet 32 that sets up on barrel 31 and the barrel 31, and wherein, grout hole 33 and the grout outlet 32 are used for the grout operation when connecting. When in construction application, the number of the reinforcing ribs 21 is not less than 2, and not less than 10% of the total number of the vertical ribs 2, so as to ensure the structural form and structural stress of the reinforcing system; the strength of the reinforced section 211 is not less than that of the non-reinforced section 212, and the bearing capacity of the reinforced section 211 is greater than the sum of the bearing capacity loss value of the corresponding joint grouting sleeve 3 during grouting and the bearing capacity of the non-reinforced section 212.
As shown in fig. 8 to 11, when the vertical wall ribs 2 and the horizontal wall ribs 12 are bound to the assembled wall 1, the corresponding shear resistant pieces 4 are bound and fixed, and concrete is poured together; during pouring, one half of the shear resistant pieces 4 are arranged in the poured assembly wall body 1, and the other half of the shear resistant pieces 4 are reserved; a template is erected on the other side of the assembled wall body 1 during pouring, and a shear groove 5 is reserved; for the assembled column body 7, when the column vertical ribs 2 and the column stirrups 72 are bound, the corresponding shearing resistant pieces 4 are made, bound and fixed, and concrete is poured together; during pouring, one half of the shear resistant part 4 is arranged in the poured assembly type column body 7, and the other half of the shear resistant part 4 is reserved; and the prefabricated column body 7 supports the template reserved shear groove 5 at the top of the column during pouring.
In this embodiment, the shear resistant member 4 is an H-shaped steel member, and may also be an i-shaped steel member or a rectangular steel member. The shear resistant grooves 5 in the assembly wall body 1 and the assembly column body 7 are rectangular grooves, and the size of each rectangular groove is larger than that of the shear resistant piece 4; concrete is poured between the shear groove 5 and the shear piece 4.
With reference to fig. 1 to 11, the construction method of the reinforced sleeve-connected prefabricated concrete structure is further described, which includes the following specific steps:
step one, processing the vertical ribs 2 according to construction design requirements; when in processing, the end heads of the non-reinforced ribs 22 are upset to form the reinforced ribs 21 according to the required number of the reinforced ribs 21;
step two, processing the assembly type wall body 1 and the assembly type column body 7; when in processing, the vertical wall ribs 2 and the horizontal wall ribs 12 in the assembled wall body 1 are bound corresponding to the arrangement diagram of the reinforcing steel bars, and the vertical column ribs 2 and the column hooping ribs 72 in the assembled column body 7 are bound;
and step three, binding the horizontal wall ribs 12 and the vertical wall ribs 2 in the assembled wall body 1 into a reinforcing mesh, connecting through tie bars, temporarily inserting the lower end parts of the vertical ribs 2 of the assembled wall body 1 into the grouting sleeve 3, and welding the shearing resistant parts 4 at the lower side of the assembled wall body 1 when the shearing resistant parts 4 are arranged. Wherein, for the top assembled wall 1, only the lower end part is added with a vertical shear resistant piece 4; for the non-top assembled wall 1, the shear resistant members 4 may be spaced or staggered at the upper and lower ends.
To among the assembled cylinder 7, become the steel reinforcement cage with the ligature of post stirrup 72 and post vertical muscle 2, correspond interim the inserting grout sleeve 3 with assembled cylinder 7 one side, when being provided with shear 4, at cylinder bottom welding shear 4. For the highest section or the lowest section of the fabricated column body 7, the shear resistant members 4 are arranged on only one side, the shear resistant members 4 can be arranged on two sides or one side of the fabricated column body 7 at other positions, and the number and the material of the shear resistant members 4 are determined according to the design requirements.
Fourthly, erecting a template at the outer side of the reinforcing mesh bound by the assembled wall 1, and reserving the position of a shear resistant groove 5 when the shear resistant part 4 is arranged; erecting a template at the outer side of a reinforcement cage bound by the assembly type column body 7, and reserving a position of a shear resistant groove 5 at the top position of the column when the shear resistant part 4 is arranged; when erecting the formwork, wherein, strengthening rib 21 and grout sleeve 3 are located the template inboard, and all grout sleeve 3 outside opening part temporary shutoff.
Fifthly, respectively pouring wall concrete 11 and column concrete 71 corresponding to the assembled wall body 1 and the assembled column body 7, curing the wall concrete 11 and the column concrete 71 to a preset strength, and numbering the formed assembled wall body 1 and the formed assembled column body 7; wherein the curing can be carried out by pressurized steam curing.
Hoisting and mounting the assembled wall 1 and/or the assembled column 7, inserting the end parts of the adjacent vertical ribs 2 into the grouting sleeves 3 on the assembled wall 1 and/or the assembled column 7 according to the corresponding numbers, and injecting mortar into grouting holes 33 in the grouting sleeves 3 and maintaining; when the anti-shearing piece is arranged, the anti-shearing piece 4 in the assembled wall body 1 and/or the assembled column body 7 is correspondingly inserted into the anti-shearing groove 5;
supporting formworks at the joint of the adjacent assembly type wall bodies 1, the joint of the adjacent assembly type column bodies 7 and the shear groove 5, and pouring concrete or grouting material, vibrating and maintaining; and then connecting the joint of the adjacent assembly type wall body 1 and the adjacent assembly type cylinder 7 into a designed structure system, and when the shock insulation cushion layer is arranged, arranging the shock insulation cushion layer between the assembly type wall body 1 and the assembly type cylinder 7 and the foundation respectively, and finally finishing the construction and installation of the reinforcing system.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be considered by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A reinforced sleeve-connected prefabricated concrete structure comprises two vertically adjacent prefabricated concrete structures and a grouting sleeve positioned at the connecting end of the two prefabricated concrete structures, and is characterized in that the prefabricated concrete structure comprises structural ribs and concrete, the structural ribs comprise vertical ribs and horizontal ribs, the vertical ribs (2) comprise reinforcing ribs (21) or reinforcing ribs (21) and non-reinforcing ribs (22), the grouting sleeve (3) is connected between the vertical ribs (2) of the adjacent prefabricated concrete structures,
the reinforcing bar (21) comprises a continuous reinforcing section (211) and a non-reinforcing section (212), wherein the reinforcing section (211) is located at the end of the reinforcing bar (21),
the reinforced section (211) of the reinforced area is inserted into a grouting sleeve (3), and the grouting sleeve (3) is inserted into the connection end of the prefabricated concrete structure or the connection end of the adjacent another prefabricated concrete structure; the outer end surface of the grouting sleeve (3) does not expose the end surface of the same side of the prefabricated concrete structure embedded in the grouting sleeve,
the diameter of the reinforced section (211) is larger than that of the non-reinforced section (212), wherein the reinforced section (211) is formed by upsetting the non-reinforced section (212).
2. A reinforced muff-coupling precast concrete structure according to claim 1, wherein the number of the reinforcing bars (21) is not less than 2 and not less than 10% of the total number of the vertical bars (2).
3. A reinforced muff coupling prefabricated concrete structure according to claim 1, characterized in that the length of the reinforcing bars (21) in the prefabricated concrete structure to which the grouting sleeves (3) are coupled is not less than one tenth of the length of the grouting sleeves (3).
4. A reinforced muff coupling prefabricated concrete structure according to claim 1, characterized in that the load capacity of the reinforcement section (211) is not less than the sum of the load capacity loss value of the grouted corresponding coupling grouting muff (3) and the load capacity of the non-reinforcement section (212).
5. A reinforced muffin coupling prefabricated concrete structure according to claim 1, characterized in that the prefabricated concrete structure comprises prefabricated walls (1) and/or prefabricated columns (7).
6. A reinforced muff coupling prefabricated concrete structure according to claim 5, further comprising a shear block (4) coupled to one side of the prefabricated concrete structure and a shear groove (5) in which the corresponding shear block (4) is provided on the adjacent prefabricated concrete structure; one end of the shear resistant piece (4) is connected between the vertical ribs of the fabricated concrete structure, and the other end of the shear resistant piece is connected in the shear resistant groove (5); the size of the shear resistant groove (5) is larger than that of the shear resistant piece (4), and concrete and/or grouting material is poured between the shear resistant groove (5) and the shear resistant piece (4).
7. A reinforced muffjoint prefabricated concrete structure according to claim 5, characterized in that the prefabricated wall body (1) comprises vertical wall ribs (2), horizontal wall ribs (12) connected to the vertical wall ribs (2) at intervals, and wall concrete (11) poured and connected between the vertical wall ribs (2) and the horizontal wall ribs (12); the vertical wall ribs (2) comprise vertical wall reinforcing ribs (21) or vertical wall reinforcing ribs (21) and vertical non-reinforcing ribs (22) of the wall, grouting sleeves (3) are connected between every two adjacent vertical ribs (2), and one end or two ends of each horizontal wall rib (12) extend out of wall concrete (11) and are connected with the horizontal wall ribs (12) of the adjacent assembled wall bodies (1).
8. A reinforced muff coupling prefabricated concrete structure according to claim 5, characterized in that the fabricated column body (7) comprises column vertical ribs (2), column stirrups (72) connected to the column vertical ribs (2) at intervals, and column concrete (71) connected to the column vertical ribs (2) and the column stirrups (72) in a pouring way; the column vertical ribs (2) comprise column vertical reinforcing ribs (21) or column vertical reinforcing ribs (21) and column vertical non-reinforcing ribs (22), and grouting sleeves (3) are connected between every two adjacent vertical ribs (2).
9. A reinforced muffin coupling prefabricated concrete structure according to claim 5, characterised in that the grout sleeve (3) comprises a full grout sleeve and a half grout sleeve.
10. A reinforced type muffjoint prefabricated concrete structure as claimed in claim 5, characterized in that the prefabricated wall body (1) and/or the prefabricated column body (7) are provided with connecting steel bars at the joints and poured with grouting layers (6), and shock insulation cushion layers are respectively arranged between the prefabricated wall body (1) and the prefabricated column body (7) and a foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121057207.4U CN215167233U (en) | 2021-05-18 | 2021-05-18 | Reinforced sleeve connection prefabricated concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121057207.4U CN215167233U (en) | 2021-05-18 | 2021-05-18 | Reinforced sleeve connection prefabricated concrete structure |
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| Publication Number | Publication Date |
|---|---|
| CN215167233U true CN215167233U (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121057207.4U Active CN215167233U (en) | 2021-05-18 | 2021-05-18 | Reinforced sleeve connection prefabricated concrete structure |
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| CN (1) | CN215167233U (en) |
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2021
- 2021-05-18 CN CN202121057207.4U patent/CN215167233U/en active Active
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