CN211548040U - Prestressed beam column joint structure - Google Patents
Prestressed beam column joint structure Download PDFInfo
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- CN211548040U CN211548040U CN201922009887.1U CN201922009887U CN211548040U CN 211548040 U CN211548040 U CN 211548040U CN 201922009887 U CN201922009887 U CN 201922009887U CN 211548040 U CN211548040 U CN 211548040U
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Abstract
The utility model provides a prestressed beam column seam structure, it is including sealing storehouse frame, pipe lining, the pre-buried bellows of post prestressing tendons, the pre-buried bellows of beam prestressing tendons, post-tensioned prestressing tendons, mixing the steel fibre cementation of fissures material that excels in, mixing steel fibre high-strength seat thick liquids and the cementation of fissures material that excels in. The utility model discloses it is not high and the material that adopts in each construction step obtains easily that the bellows to beam column seam structure stretches out the length requirement, even the bellows takes place to damage and does not influence construction quality yet, and is prefabricated and transport more portably. The joint structure adopts two times of joint filling processes on the corrugated pipe and under the corrugated pipe, so that the problems that the joint of the beam column corrugated pipe is not tightly sealed in the one-time joint filling process, and grouting material enters the corrugated pipe to influence later-stage pore grouting are solved. Because the sealing tape is not used for sealing, the process of sealing by adopting the sealing tape is omitted, the construction efficiency is improved, and in addition, because the sealing ring material is not required to be customized and shaped, the cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of prestressing force assembled concrete building construction, especially, relate to a prestressed beam column seam structure.
Background
At present, two main methods are used for constructing the prestressed beam-column joint, one is a patent of 'a prefabricated beam-column joint structure containing prestressed ducts and a construction method CN 201710113805.0', the other is a patent of 'a prefabricated beam-column joint structure sleeved with corrugated pipes and a construction method CN 201910476216.8', the main method mainly comprises the steps of sealing between beam-column corrugated pipes by adopting a sealing adhesive tape or a shaping sealing ring material, and then pouring grouting materials in the beam-column joint. However, the above method has the following disadvantages:
1. the construction space of the sealing adhesive tape is small, the operation of winding the sealing adhesive tape on site is inconvenient, the construction efficiency is low, the requirement on the production quality of the prefabricated part is high, and the requirement is difficult to guarantee in actual engineering.
2. The material of the sizing sealing ring needs to be customized, the material is not easy to obtain, the cost is higher, and the quality is not easy to control in the actual operation.
In order to solve the above problems, a beam-column joint structure with easily available materials and rapid construction needs to be provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a prestressed beam column seam structure is provided, the construction quality who aims at the way of the construction of current prestressed beam column seam is difficult to guarantee, and construction speed is slower, and the material is difficult for acquireing, the higher problem of cost.
The utility model discloses a prestressed beam column joint structure, it includes seals storehouse frame, pipe lining, post prestressing tendons pre-buried bellows, roof beam prestressing tendons pre-buried bellows, post-tensioned prestressing tendons restraints, mixes the high-strength cementation of fissures material of steel fibre, mixes the high-strength cementation of fissures cementing material of steel fibre and high-strength cementation of fissures cementing material; the bin sealing frame seals the bottom and two side faces of a joint between the cross section of the beam and the column; the post prestressed reinforcement pre-buried corrugated pipe is pre-buried in the post, the beam prestressed reinforcement pre-buried corrugated pipe is pre-buried in the beam, the ports of the post prestressed reinforcement pre-buried corrugated pipe and the beam prestressed reinforcement pre-buried corrugated pipe at the joint position are aligned with each other, and the post prestressed reinforcement bundle sequentially penetrates through the beam prestressed reinforcement pre-buried corrugated pipe and the post prestressed reinforcement pre-buried corrugated pipe; the pipe liner is embedded in the bin sealing frame and consists of hollow pipes, wherein the bottom of the pipe liner is provided with a horizontal pipe, the horizontal pipe divides the bin sealing frame into an upper cavity and a lower cavity which are isolated from each other up and down, the end part, close to the joint, of the column prestressed tendon embedded corrugated pipe is positioned in the lower cavity, and the upper cavity is filled with the steel fiber-doped high-strength seat slurry; a space from the bottom of the lower cavity to the center of the beam prestressed rib pre-buried corrugated pipe is filled with a steel fiber-doped high-strength crack pouring bonding material; the center of the beam prestressed rib pre-buried corrugated pipe is filled with a high-strength crack pouring bonding material from the center to the bottom of the lower cavity, a horizontal pipeline at the bottom of the pipe liner is provided with a grout inlet, and the top of the pipe liner is provided with a grout outlet; the top of the pipe lining extends upwards out of the steel fiber-doped high-strength seat slurry filled in the upper cavity, and the pipeline of the pipe lining is filled with high-strength crack pouring bonding material.
Furthermore, the sealing frame is a shaping template or a high-strength seat slurry sealing cabin.
Furthermore, the section of the pipe liner in the longitudinal direction is in an L shape, an inverted T shape or a U shape which are arranged back to back.
Further, the pipe lining is made of PVC or steel, and the diameter of the pipe lining pipeline is 3-10 mm smaller than the width of the joint.
Furthermore, the horizontal pipeline at the bottom of the pipe liner is provided with two slurry inlet holes which are symmetrically distributed, the slurry inlet holes are positioned at 10 mm-50 mm of two sides of the pre-buried corrugated pipe of the column prestressed tendon, and the opening direction is downward.
Furthermore, the prestressed beam-column joint structure further comprises a bending-resistant steel bar and a post-beam pouring layer, one end of the bending-resistant steel bar is connected with a steel bar connector pre-embedded in the column, the other end of the bending-resistant steel bar is embedded in the post-beam pouring layer, and the post-beam pouring layer covers the beam.
Compared with the prior art, the utility model, beneficial effect lies in:
the utility model provides a prestressed beam column seam structure, it is not high and the material of adopting in each construction step obtains easily that the bellows to beam column seam structure stretches out the length requirement, even the bellows takes place to damage and does not influence construction quality yet, and is prefabricated and transport more portably. The beam column joint structure adopts two times of joint filling processes on the corrugated pipe and under the corrugated pipe, so that the problems that the joint of the beam column corrugated pipe is not tightly sealed in the one-time joint filling process, and grouting material enters the corrugated pipe to influence later-stage pore grouting are solved. Because the sealing tape is not used for sealing, the process that the sealing tape is used for sealing in the original construction method is omitted, the construction efficiency is improved, and in addition, because the sealing ring material is not required to be customized and shaped, the cost is reduced.
Drawings
Fig. 1 is a schematic front view of a prestressed beam-column joint structure provided by an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the prestressed beam-column joint structure shown in FIG. 1, taken along the line A-A;
FIG. 3 is a schematic cross-sectional view of a prestressed beam-column joint structure with a U-shaped pipe liner according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of a prestressed beam-column joint structure with an inverted T-shaped pipe liner according to an embodiment of the present invention;
fig. 5 is a schematic front view of a prestressed beam-column joint structure with a middle joint according to an embodiment of the present invention;
fig. 6a to fig. 6f are schematic diagrams of each state in a construction process of a prestressed beam-column joint structure according to an embodiment of the present invention.
Description of reference numerals:
1-sealing the bin frame; 2-pipe lining; 21-horizontal pipes; 211-slurry inlet holes; 22-slurry outlet holes; 3-pre-embedding the corrugated pipe by using the column prestressed tendons; 4-pre-embedding the corrugated pipe by using the beam prestressed bars; 5-post-tensioned prestressed steel bundles; 6-prestressed tendon external anchor head; 7-steel fiber-doped high-strength crack pouring bonding material; 8-steel fiber doped high-strength seat slurry; 9-high-strength crack pouring bonding material; 10-bending-resistant reinforcing steel bars; 11-post-beam casting layer; 100-column; 101-a steel bar connector; 200-beam.
Detailed Description
In order to make the technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of 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; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; may be a mechanical connection; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Please refer to fig. 1 and fig. 2, which illustrate a prestressed beam-column joint structure provided by the present invention, which comprises a sealing frame 1, a pipe liner 2, a column prestressed tendon pre-embedded corrugated pipe 3, a beam prestressed tendon pre-embedded corrugated pipe 4, a post-tensioned prestressed tendon bundle 5, a prestressed tendon outer anchor head 6, a steel fiber-doped high-strength crack-filling adhesive material 7, a steel fiber-doped high-strength seat slurry 8 and a high-strength crack-filling adhesive material 9.
The bin sealing frame 1 is used for sealing the bottom and two side faces of a joint between the beam section and the column, and the bin sealing frame 1 is a sizing template or a high-strength base slurry bin seal. The column prestressed tendon embedded corrugated pipe 3 is embedded in the column 100, and the beam prestressed tendon embedded corrugated pipe 4 is embedded in the beam 200. The post prestressed reinforcement pre-buried corrugated pipe 3 and the beam prestressed reinforcement pre-buried corrugated pipe 4 are aligned with each other at the port of the joint position between the beam and the column, the post tensioned prestressed reinforcement bundle 5 sequentially penetrates through the beam prestressed reinforcement pre-buried corrugated pipe 4 and the post prestressed reinforcement pre-buried corrugated pipe 3, and the beam 200 and the column 100 are tensioned and fastened through the prestressed reinforcement outer anchor head 5.
The pipe liner 2 is embedded in the bin sealing frame 1, the pipe liner 2 is composed of hollow pipes, the bottom of the pipe liner 2 is provided with a horizontal pipe 21, and the bin sealing frame is divided into an upper cavity and a lower cavity which are isolated from each other up and down by the horizontal pipe 21. The end part of the column prestressed tendon embedded corrugated 3 pipe close to the joint is positioned in the lower cavity, and the upper cavity is filled with steel fiber-doped high-strength seat slurry 8; and a space from the bottom of the lower cavity to the center of the beam prestressed rib pre-embedded corrugated pipe 4 is filled with a steel fiber-doped high-strength crack pouring bonding material 7.
The high-strength crack pouring bonding material 9 is filled from the central position of the beam prestressed rib pre-embedded corrugated pipe 4 to the bottom of the lower cavity, the horizontal pipeline 21 at the bottom of the pipe liner 2 is provided with two symmetrically distributed slurry inlet holes 211, the slurry inlet holes 211 are located at 10-50 mm positions on two sides of the column prestressed rib pre-embedded corrugated pipe 3, and the opening direction is downward. The top of the pipe liner 2 is provided with a slurry outlet 22. The top of the pipe lining 2 extends upwards out of the steel fiber-doped high-strength seat slurry 8 filled in the upper cavity, and the pipeline of the pipe lining 2 is filled with a high-strength crack pouring bonding material 9.
In this embodiment, the steel fiber-doped high-strength foundation slurry 8 filled in the upper cavity is replaced by a steel fiber-doped high-strength grouting material. The pipe liner 2 is made of PVC or steel, and the diameter of the pipe liner 2 is 3-10 mm smaller than the width of the joint. The section of the pipe liner 2 in the longitudinal direction is in an L shape with two back-to-back arrangements, and in practical application, please refer to fig. 3 and 4, the pipe liner 2 may also be in a U shape or an inverted T shape.
Optionally, the prestressed beam-column joint structure further includes a bending-resistant steel bar 10 and a post-beam-casting layer 11. One end of the bending-resistant reinforcing steel bar 10 is connected with a reinforcing steel bar connector 101 pre-embedded in the column 100, the other end of the bending-resistant reinforcing steel bar is embedded in the post-pouring layer 11 of the beam, and the post-pouring layer 11 of the covering beam is arranged on the beam 200.
Referring to fig. 5, in the prestressed beam-column joint structure with a middle node provided in this embodiment, the external anchor head 6 of the prestressed tendon may be omitted, and the post-tensioned prestressed tendons 5 of the beam-column joint structure on one side are prestressed and tensioned by the beam-column joint structure on the other side.
Referring to fig. 6a to 6f, the construction steps of the prestressed beam-column joint structure of the present embodiment are as follows:
s1, positioning the beam 200 and the column 100, and penetrating a post-tensioned prestressed reinforcement bundle 5 into the beam prestressed reinforcement pre-embedded corrugated pipe 4 and the column prestressed reinforcement pre-embedded corrugated pipe 3;
s2, sealing the bottom surface and two side surfaces of the joint between the beam section and the column by using a cabin sealing frame 1;
s3, grouting a joint at the contact position of the beam section and the column by using the steel fiber-doped high-strength crack pouring bonding material 7, and controlling the grouting height between the bottom surface and the central position of the column prestressed rib embedded corrugated pipe 3 to ensure that the steel fiber-doped high-strength crack pouring bonding material 7 does not enter or slightly enters the column prestressed rib embedded corrugated pipe 3 and the beam prestressed rib embedded corrugated pipe 4;
s4, placing the pipe liner 2 in a joint between the beam section and the column, wherein the horizontal pipe 21 at the bottom of the pipe liner 2 is placed at the top surface of the pre-buried corrugated pipe 3 of the column prestressed tendon;
s5, compacting the seam above the horizontal pipe 21 of the pipe liner 2 by using the steel fiber-doped high-strength seat slurry 8;
s6, after the strength of the steel fiber high-strength seat slurry 8 reaches more than 30Mpa, performing prestress tensioning, after tensioning is completed, grouting the column prestressed rib pre-embedded corrugated pipe 3 and the beam prestressed rib pre-embedded corrugated pipe 4, injecting a high-strength crack pouring bonding material 9, after the column prestressed rib pre-embedded corrugated pipe 3 and the beam prestressed rib pre-embedded corrugated pipe 4 are fully injected, the high-strength crack pouring bonding material 9 enters from a slurry inlet hole 211 at the bottom of the liner pipe 2, discharging slurry from slurry outlet holes 22, and after all slurry outlet holes 22 discharge slurry, completing grouting operation;
and S7, connecting one end part of the bending-resistant steel bar 10 with a steel bar connector 101 pre-embedded in the column 100, pouring a post-beam pouring layer 11 on the top surface of the beam 200, and enabling the post-beam pouring layer 12 to cover the bending-resistant steel bar 10 to complete the whole construction process.
Further, the steel fiber-doped high-strength foundation slurry 8 in the step S5 is replaced by a steel fiber-doped high-strength grouting material with the fluidity of 150 mm-250 mm. The high-strength crack pouring bonding material 9 injected in the above steps adopts one or a combination of more than two of high-strength rapid-hardening cement-based grouting material, fiber rapid-hardening cement-based grouting material or polymer mortar with the compressive strength of more than 45 MPa.
The beam column joint structure of this embodiment, it is not high to beam column joint structure's bellows extension length requirement to the material of adopting obtains easily, does not influence construction quality even the bellows takes place to damage, and prefabrication and transportation are more simple and convenient. The beam column joint structure adopts two times of joint filling processes on the corrugated pipe and under the corrugated pipe, so that the problems that the joint of the beam column corrugated pipe is not tightly sealed in the one-time joint filling process, and grouting material enters the corrugated pipe to influence later-stage pore grouting are solved. Because the sealing tape is not used for sealing, the process that the sealing tape is used for sealing in the original construction method is omitted, the construction efficiency is improved, and in addition, because the sealing ring material is not required to be customized and shaped, the cost is reduced.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A prestressed beam column joint structure is characterized by comprising a cabin sealing frame, a pipe lining, a column prestressed rib pre-embedded corrugated pipe, a beam prestressed rib pre-embedded corrugated pipe, a post-tensioned prestressed reinforcement bundle, a steel fiber-doped high-strength crack pouring bonding material, a steel fiber-doped high-strength seat slurry and a high-strength crack pouring bonding material; the bin sealing frame seals the bottom and two side faces of a joint between the cross section of the beam and the column; the post prestressed tendon embedded corrugated pipe is embedded in the post, the beam prestressed tendon embedded corrugated pipe is embedded in the beam, the ports of the post prestressed tendon embedded corrugated pipe and the beam prestressed tendon embedded corrugated pipe at the joint position are aligned with each other, and the post prestressed tendon bundle sequentially penetrates through the beam prestressed tendon embedded corrugated pipe and the post prestressed tendon embedded corrugated pipe; the pipe liner is embedded in the bin sealing frame and consists of hollow pipes, wherein the bottom of the pipe liner is provided with a horizontal pipe, the horizontal pipe divides the bin sealing frame into an upper cavity and a lower cavity which are isolated from each other up and down, the end part, close to the joint, of the column prestressed tendon embedded corrugated pipe is positioned in the lower cavity, and the upper cavity is filled with the steel fiber-doped high-strength seat slurry; a space from the bottom of the lower cavity to the center of the beam prestressed rib pre-buried corrugated pipe is filled with a steel fiber-doped high-strength crack pouring bonding material; the center of the beam prestressed rib pre-buried corrugated pipe is filled with a high-strength crack pouring bonding material from the center to the bottom of the lower cavity, a horizontal pipeline at the bottom of the pipe liner is provided with a grout inlet, and the top of the pipe liner is provided with a grout outlet; the top of the pipe lining extends upwards out of the steel fiber-doped high-strength seat slurry filled in the upper cavity, and the pipeline of the pipe lining is filled with high-strength crack pouring bonding material.
2. The prestressed beam-column joint structure of claim 1, wherein said sealing frame is a sizing form or a high-strength setting slurry sealing.
3. The prestressed beam-column joint structure as claimed in claim 1, wherein said pipe lining has a longitudinal cross-section in the form of two L-shaped, inverted T-shaped or U-shaped structures arranged back to back.
4. The prestressed beam-column joint structure of any one of claims 1 to 3, wherein said lining is made of PVC or steel, and the diameter of said lining pipe is 3mm to 10mm smaller than the width of said joint.
5. The prestressed beam-column joint structure as claimed in any one of claims 1 to 3, wherein the horizontal pipe at the bottom of said pipe liner is provided with two symmetrically distributed slurry inlets, said slurry inlets are located at two sides of the pre-embedded corrugated pipe of prestressed tendon of column by 10 mm-50 mm, and the opening direction is downward.
6. The prestressed beam-column joint structure as claimed in any one of claims 1 to 3, wherein said prestressed beam-column joint structure further comprises a bending-resistant steel bar and a post-beam-casting layer, one end of said bending-resistant steel bar is connected with a steel bar connector embedded in the column, the other end is embedded in said post-beam-casting layer, and said post-beam-casting layer covers the beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922009887.1U CN211548040U (en) | 2019-11-19 | 2019-11-19 | Prestressed beam column joint structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922009887.1U CN211548040U (en) | 2019-11-19 | 2019-11-19 | Prestressed beam column joint structure |
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| CN211548040U true CN211548040U (en) | 2020-09-22 |
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| CN201922009887.1U Active CN211548040U (en) | 2019-11-19 | 2019-11-19 | Prestressed beam column joint structure |
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| CN (1) | CN211548040U (en) |
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