CN213709147U - Reinforced corrugated pipe grouting and anchoring connection structure - Google Patents
Reinforced corrugated pipe grouting and anchoring connection structure Download PDFInfo
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- CN213709147U CN213709147U CN202022456627.1U CN202022456627U CN213709147U CN 213709147 U CN213709147 U CN 213709147U CN 202022456627 U CN202022456627 U CN 202022456627U CN 213709147 U CN213709147 U CN 213709147U
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Abstract
The utility model provides a corrugated steel pipe grout anchor connection structure connects a storage thick liquid ware of going out at the play thick liquid end of corrugated steel pipe that is in the milk, store thick liquid and go out the thick liquid ware and connect the top at vertical arrangement's corrugated steel pipe that is in the milk, the lower extreme of corrugated steel pipe that is in the milk inserts for the slip casting end in order to supply the lower part reinforcing bar, store thick liquid and go out the top of thick liquid ware and seal, store thick liquid and go out the bottom of thick liquid ware with the upper end sealing connection of the play thick liquid end of corrugated steel pipe that is in the milk, store thick liquid and go out the upper portion of thick liquid ware and. The utility model discloses can conveniently look over the grout material plumpness of storing thick liquid play thick liquid ware inner chamber to with this plumpness information that obtains the grout material in the grout bellows.
Description
Technical Field
The utility model relates to a corrugated steel pipe grouting anchor connection structure that precast concrete component anchor was connected and is used still relates to corresponding bellows grout and connects plumpness detection method.
Background
In the prefabricated concrete structure building, the bent cap of the prefabricated concrete bridge structure is connected with the pier stud by anchoring, the pier stud is connected with the base, or the concrete hanging plate of the prefabricated frame structure is connected with the lower part structure by anchoring, and in the hanging plate wall of some house building structures, the mode of anchoring and connecting the reinforcing steel bars by grouting metal corrugated pipes is often adopted. Usually, the corrugated pipe is pre-embedded at the lower end of the upper component, for example, the grouting corrugated pipe of the prefabricated capping beam is arranged at the bottom of the component, when in connection, the connecting reinforcing steel bar extending upwards from the lower pier stud structure is upwards inserted into the grouting corrugated pipe at the lower end of the capping beam, the horizontal joint between the capping beam and the pier stud is filled with cushion layer mortar or base slurry, after the lower port of the corrugated pipe is sealed, the grouting pore reserved on the side surface of the capping beam is used for grouting into the corrugated pipe, and after the grouting slurry is filled into each inner cavity of the corrugated pipe, the grouting connection of the prefabricated component is completed; the concrete hanging plate of the assembly type frame structure is similar to the anchoring connection of the lower structure.
The corrugated pipe grouting connection is generally applied in the assembled bridge engineering, but the height of the grouting corrugated pipe is generally more than 1 meter, and the problem of slurry surface reduction possibly occurs due to various reasons after the grouting corrugated pipe is filled with slurry, so that the defect of insufficient anchoring length is caused, but the corrugated pipe grouting anchoring connection is a node buried in a concrete member, belongs to concealed engineering, does not have a convenient and reliable detection and defect repair method at present, and mainly shows three aspects:
the grouting filling degree of the inner cavity of the corrugated pipe is difficult to detect, the existing grouting corrugated pipe is provided with a grout inlet and outlet hole in the side wall of the corrugated pipe, grouting materials are injected from the grout inlet and outlet holes to fill all gaps in the corrugated pipe, and due to the fact that the grouting corrugated pipe is made of metal materials, the filling degree of the grouting materials inside the corrugated pipe cannot be accurately detected by ultrasonic waves, elastic waves and the like. The internal condition of the corrugated pipe can be clearly displayed by X-ray detection, but the detection cost is high, the detection is also limited by the thickness of a concrete member and the arrangement condition of the corrugated pipe, and a satisfactory image is difficult to obtain by a portable ray apparatus for detecting the member with the thickness of more than 300mm and the prefabricated bent cap of the double-row corrugated pipe. The existing sensor method for detecting the grouting fullness of the pipe and the steel wire drawing method are both used for indirectly judging whether the grouting material at the grout outlet is full, and the grouting material fullness in the corrugated pipe is difficult to detect;
secondly, the physical strength of the grouting material in the corrugated pipe is difficult to detect, in engineering, standard curing grouting material compressive strength test blocks are manufactured under the same field condition to serve as the basis for judging the strength of the grouting material in the corrugated pipe, but if the field grouting material compressive strength test blocks are not cured properly and the detection result is unqualified, the problem is very complicated to process, and if the real grouting material strength detection result cannot be obtained to serve as acceptance data, serious quality hidden troubles can be buried in the engineering;
thirdly, when the grouting material in the grouting corrugated pipe is not full, no matter the grouting material is supplemented into the corrugated pipe from a grouting hole of the corrugated pipe, or member concrete covered on the surface of the corrugated pipe is removed, and then the grouting is supplemented after drilling is performed on the corrugated pipe, the repairing methods are labor-consuming and labor-consuming, and the grouting quality cannot be visually confirmed, so that the repairing difficulty of the grouting failure is high, the production efficiency is low, and many engineering projects are reluctant to detect and find grouting defects, even conceal the problems.
In conclusion, if the filling degree or strength of the grouting material in the grouting corrugated pipe does not meet the design requirements, problems cannot be found or defects cannot be repaired, hidden dangers are brought to the safety of the building structure, and if the problems faced by the grouting connection of the corrugated pipe are not solved, the popularization and the health development of the assembled building in China are affected, and even the technical backing up may occur. Therefore, the difficult problems of detection of grouting bellows plumpness and grouting material strength in the bellows are solved, and the development of a new bellows grouting plumpness repairing method is an urgent requirement of the current assembly type concrete building.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the utility model provides a corrugated steel bar pipe grout anchor connection structure, solves the above-mentioned technical problem who exists among the prior art.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a corrugated steel bar pipe grout anchor connection structure, will be located the precast concrete component on upper portion and the vertical reinforcing bar of the lower part structure body that is located the lower part and carry out the anchor and be connected its characterized in that:
the lower structure body is provided with a lower reinforcing steel bar which extends upwards into the grouting corrugated pipe;
a grouting corrugated pipe is prefabricated in the precast concrete component, the upper part of the grouting corrugated pipe is a grout outlet end, and the lower part of the grouting corrugated pipe is a grouting end and can be penetrated by a lower reinforcing steel bar;
the grout outlet end of the grouting corrugated pipe is connected with a grout storage and outlet device, the top of the grout storage and outlet device is sealed, the bottom of the grout storage and outlet device is provided with a corrugated pipe connecting end for being in sealing connection with the upper end of the grout outlet end of the grouting corrugated pipe, and the upper part of the grout storage and outlet device is provided with a grout outlet nozzle.
The grouting and anchoring connection structure of the steel bar corrugated pipe is characterized in that the grouting corrugated pipe is a rigid cylindrical metal pipe with a concave-convex structure on the surface of an inner cavity, the wall thickness of the pipe is 1-8 mm, and the minimum inner diameter of the pipe is not less than the nominal diameter value of the lower steel bar and is not less than +20 mm.
The steel bar corrugated pipe grouting anchoring connection structure is characterized in that the slurry storage and discharge device is of a single-piece integral structure or a multi-piece combined structure.
The steel bar corrugated pipe grouting anchoring connection structure is characterized in that a slurry outlet nozzle of the slurry storage and outlet device is provided with an elevation angle larger than 0 degree.
The steel bar corrugated pipe grouting anchoring connection structure is characterized in that a slurry outlet nozzle of the slurry storage and outlet device is communicated with a slurry outlet pipe, and the slurry outlet pipe extends outwards to the outer surface of the precast concrete member.
The grouting and anchoring connection structure for the steel corrugated pipe is characterized in that a gap is formed between the precast concrete member and the lower structural body, the grouting end of the grouting corrugated pipe is communicated with the gap, and the grouting end or the gap is communicated with a grouting pipe.
The steel bar corrugated pipe grouting anchoring connection structure is characterized in that the intervals are filled and sealed by seat slurry or cushion layer mortar, side wall grouting holes are formed in the side faces of the grouting ends of the grouting corrugated pipes and are connected with grouting nozzles and grouting pipes or directly connected with the grouting pipes, and the grouting pipes extend outwards to the outer surfaces of the precast concrete members.
The steel bar corrugated pipe grouting and anchoring connection structure is characterized in that the side wall of a grouting end of the grouting corrugated pipe is totally closed, the bottom surface of the grouting end is close to or parallel and level with the end surface of the bottom of the precast concrete component, and the periphery of the interval is closed and communicated with the grouting pipe.
The steel corrugated pipe grouting and anchoring connection structure is characterized in that the side wall of the grout outlet end of the grouting corrugated pipe is totally closed.
The steel corrugated pipe grouting and anchoring connection structure is characterized in that the slurry storage and discharge device is made of a non-metal material.
The utility model has the beneficial technical effects that:
1. the utility model discloses set up the storage thick liquid ware of going out on the grout bellows, when making each grout bellows grout, the grout bellows upper portion has all relied on the storage thick liquid ware of going out to store the grouting material of certain volume, if the grouting material in the grout bellows takes place from the condition that the slip casting end leaked, the grouting material in the storage thick liquid ware of grout bellows upper end can descend along with the decline of the grouting material face in the grout bellows promptly, replenish the grout bellows inner chamber, effectively guarantee the plumpness of the grouting material in the grout bellows;
2. the utility model discloses set up the thick liquid ware of leaving of storing thick liquid in the grout bellows upper end, will move the detection to the grout plumpness outside the grout bellows from in the grout bellows, the grout plumpness in the thick liquid ware of leaving of storing thick liquid can reflect the plumpness of the grout in the grout bellows directly perceived, has simplified the detection degree of difficulty of grout plumpness in the grout bellows greatly; if grouting materials are left in the slurry storage and discharge device, the inner cavity of the grouting corrugated pipe is full, and when no grouting materials are left in the slurry storage and discharge device, the inner cavity of the grouting corrugated pipe is indicated to be unsaturated at a high probability, and the grouting corrugated pipe can be judged to be unsaturated and needs to be subjected to slurry replenishing operation; because the slurry storage and discharge device is made of non-metal materials, the nondestructive detection or the local damage drilling detection of the inner cavity of the slurry storage and discharge device is more convenient and quicker to implement than the grouting fullness detection of the existing grouting corrugated pipe, the detection cost is greatly reduced, and the detection accuracy is improved;
3. the slurry storage and discharge device provides a simple slurry supplementing scheme, no matter the grouting material in the grouting corrugated pipe is not full or the grouting material in the slurry storage and discharge device is not full, holes can be drilled from the outer side surface of the precast concrete component to the upper part of the slurry storage and discharge device, and slurry is supplemented from the drilled positions, so that the damage of a connecting piece caused by drilling holes on the side wall of the corrugated pipe for the slurry supplementing of the grouting corrugated pipe is avoided, the drilling difficulty of the slurry storage and discharge device position is easier than that of the grouting corrugated pipe, and the slurry supplementing technology, the operation difficulty and the cost of the grouting corrugated pipe are greatly reduced;
4. the method comprises the steps of obtaining a small core block sample of grouting material from a position of a slurry storage and discharge device by adopting a core drilling method, comparing the compression strength of the small core block sample of the grouting corrugated pipe slurry storage and discharge device connected with the same batch of grouting with the compression strength of the small core block sample obtained on the same batch of standard curing compression strength test piece of the grouting material by the same core drilling method, obtaining the relation between the entity grouting material in the batch of grouting corrugated pipe nodes and the known compression strength of the grouting material, and judging whether the compression strength of the entity of the grouting material in the corrugated pipe is qualified or not. The grouting material in the slurry storage and discharge device is completely the same as the grouting material in the corrugated pipe, and the sampling from the slurry storage and discharge device completely solves the international problem that the entity of the grouting material in the corrugated pipe cannot be sampled under the same environmental maintenance condition;
5. adopt the utility model discloses a grout bellows connecting elements can carry out the detection of various methods as required, can carry out necessary benefit thick liquid to not full joint and restore, checks calculation or the remedial measure that needs to the joint that grout material intensity is not enough, makes the connection quality and the problem of grout bellows handle and no longer have blind area and blank point.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of a grouting and anchoring connection structure for a steel grouting corrugated pipe provided by the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Description of reference numerals: 1-prefabricating a concrete member; 2-slurry storage and discharge device; 3-grouting corrugated pipe; 4-grouting material; 5-lower reinforcing steel bars; 6, end face of the bottom of the precast concrete member; 7-sealing the slurry; 8-a lower structure; 9-sealing the plug; 10-grouting pipe; 11-grouting end; 12-slurry outlet end; 13-bellows connection end; 14-a pulp outlet; 15-slurry outlet pipe; 16-sealing plug of slurry outlet pipe; 18-a grouting nozzle; 19-grouting pipe; 20-sidewall grouting holes; 21-base slurry; 22-sealing cover.
Detailed Description
As shown in fig. 1, the utility model provides a corrugated steel bar pipe grout anchor connection structure is applied to the precast concrete component 1 that is located the upper portion and is located the vertical bar connection between the lower part structure 8 of lower part, wherein:
a space is arranged between the precast concrete member 1 and a lower structural body 8, and the lower structural body 8 is provided with a lower reinforcing steel bar 5 which extends upwards to the inside of the grouting corrugated pipe 3;
the precast concrete component 1 is precast with a grouting corrugated pipe 3, the upper part of the grouting corrugated pipe 3 is called as a grout outlet end 12, the lower part of the grouting corrugated pipe 3 is called as a grouting end 11 and can be penetrated by a lower steel bar 5; in the embodiment, the side wall of the grouting end 11 of the grouting corrugated pipe 3 is totally closed, the bottom surface of the grouting end 11 is close to or flush with the end surface 6 of the bottom of the precast concrete member 1, and the lower opening of the grouting end 11 is communicated with the gap; the periphery of the gap is sealed by sealing slurry 7 or other sealing materials and is communicated with a grouting pipe;
the lateral wall of grout bellows 3's play thick liquid end 12 is totally closed, and goes out the upper end of thick liquid end 12 and upwards communicates and have a thick liquid ware 2 of thick liquid storage, thick liquid ware 2 of thick liquid storage is made by non-metallic material, and its top is sealed, the bottom of thick liquid ware 2 of thick liquid storage has bellows link 13, can supply with the upper end sealing connection of grout bellows 3's play thick liquid end 12, the upper portion of thick liquid ware 2 of thick liquid storage has a thick liquid mouth 14, a thick liquid mouth 14 is connected with out thick liquid pipe 15, play thick liquid pipe 15 outwards extends to precast concrete component 1 surface.
The grouting corrugated pipe 3 is a rigid cylindrical metal pipe with an inner cavity surface provided with a concave-convex structure, the pipe wall thickness is 1-8 mm, and the minimum inner diameter of the pipe is not less than the nominal diameter value of the lower steel bar 5 plus 20 mm.
When grouting connection is performed, grouting material 4 is injected through a grouting pipe 10, enters the grouting end 11 of the grouting corrugated pipe 3 upwards after the interval is filled, fills the gap between the grouting end 11 and the lower reinforcing steel bar 5, flows upwards to enter and fill the grout outlet end 12 of the grouting corrugated pipe 3, flows upwards to enter and fill the grout storage and outlet device 2, simultaneously fills the grout outlet nozzle 14 of the grout storage and outlet device 2 and the grout outlet pipe 15 connected with the grout outlet nozzle 14, and flows out of the precast concrete member 1 after the grout outlet pipe 15 is filled.
Wherein, the corrugated pipe connecting end 13 of the pulp storage and discharge device 2 is provided with an elastic sealing material to ensure that the pulp storage and discharge device 2 does not leak pulp at the interface position.
The slurry storage and discharge device 2 is made of non-metal materials, and is of a single-piece integral structure formed by adhering elastic sealing materials to the connecting end 13 of the corrugated pipe, or a multi-piece combined structure formed by combining a plurality of non-metal materials and elastic sealing elements.
Wherein the pulp outlet nozzle 14 of the pulp storage pulp outlet device 2 has an elevation angle larger than 0 degree.
The grouting corrugated pipe 3 is a cylindrical corrugated pipe 3 with a concave-convex structure on the surface of an inner cavity, so that the anchoring capacity between the grouting material 5 and the surface of the inner cavity of the grouting corrugated pipe 3 is enhanced.
As shown in fig. 2 again, the second embodiment of the present invention is different only in that the gap is filled with seat slurry (or cushion mortar) 21 and the lower port of the grouting corrugated pipe 3 is sealed by a sealing cover 22, and no grouting pipe is connected, but a sidewall grouting hole 20 is formed on the side surface of the grouting end 11 of the grouting corrugated pipe 3, the sidewall grouting hole 20 is connected with a grouting nozzle 18 and a grouting pipe 19 or directly connected with the grouting pipe 19, and the grouting pipe 19 extends outward to the outer surface of the precast concrete member 1.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a corrugated steel bar pipe grout anchor connection structure, will be located the precast concrete component on upper portion and the vertical reinforcing bar of the lower part structure body that is located the lower part and carry out the anchor and be connected its characterized in that:
the lower structure body is provided with a lower reinforcing steel bar which extends upwards into the grouting corrugated pipe;
a grouting corrugated pipe is prefabricated in the precast concrete component, the upper part of the grouting corrugated pipe is a grout outlet end, and the lower part of the grouting corrugated pipe is a grouting end and can be penetrated by a lower reinforcing steel bar;
the grout outlet end of the grouting corrugated pipe is connected with a grout storage and outlet device, the top of the grout storage and outlet device is sealed, the bottom of the grout storage and outlet device is provided with a corrugated pipe connecting end for being in sealing connection with the upper end of the grout outlet end of the grouting corrugated pipe, and the upper part of the grout storage and outlet device is provided with a grout outlet nozzle.
2. A corrugated steel reinforced pipe grouting anchoring connection structure as claimed in claim 1, wherein: the grouting corrugated pipe is a rigid cylindrical metal pipe with a concave-convex structure on the surface of an inner cavity, the wall thickness of the pipe is 1-8 mm, and the minimum inner diameter of the pipe is not less than the nominal diameter value of the lower steel bar plus 20 mm.
3. A corrugated steel reinforced pipe grouting anchoring connection structure as claimed in claim 1, wherein: the slurry storage and discharge device is of a single-piece integral structure or a multi-piece combined structure.
4. A corrugated steel reinforced pipe grouting anchoring connection structure as claimed in claim 1, wherein: the slurry outlet nozzle of the slurry storage and outlet device has an elevation angle larger than 0 degree.
5. A corrugated steel reinforced pipe grouting anchoring connection structure as claimed in claim 1, wherein: and a slurry outlet nozzle of the slurry storage and outlet device is communicated with a slurry outlet pipe, and the slurry outlet pipe extends outwards to the outer surface of the precast concrete member.
6. A corrugated steel reinforced pipe grouting anchoring connection structure as claimed in claim 1, wherein: and a space is arranged between the precast concrete member and the lower structural body, the grouting end of the grouting corrugated pipe is communicated with the space, and the grouting end or the space is communicated with a grouting pipe.
7. A corrugated steel bar filled anchor connection structure as claimed in claim 6, wherein: the interval is filled and sealed by seat slurry or cushion layer mortar, a side wall grouting hole is formed in the side face of the grouting end of the grouting corrugated pipe, the side wall grouting hole is connected with a grouting nozzle and a grouting pipe or is directly connected with the grouting pipe, and the grouting pipe extends outwards to the outer surface of the precast concrete component.
8. A corrugated steel bar filled anchor connection structure as claimed in claim 6, wherein: the lateral wall of the grouting end of the grouting corrugated pipe is totally closed, the bottom surface of the grouting end is close to or flush with the end surface of the bottom of the precast concrete member, and the periphery of the gap is closed and communicated with the grouting pipe.
9. A corrugated steel reinforced pipe grouting anchoring connection structure as claimed in claim 1, wherein: and the side wall of the grout outlet end of the grouting corrugated pipe is totally closed.
10. A corrugated steel reinforced pipe grouting anchoring connection structure as claimed in claim 1, wherein: the slurry storage and discharge device is made of non-metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022456627.1U CN213709147U (en) | 2020-10-29 | 2020-10-29 | Reinforced corrugated pipe grouting and anchoring connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022456627.1U CN213709147U (en) | 2020-10-29 | 2020-10-29 | Reinforced corrugated pipe grouting and anchoring connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213709147U true CN213709147U (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022456627.1U Active CN213709147U (en) | 2020-10-29 | 2020-10-29 | Reinforced corrugated pipe grouting and anchoring connection structure |
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| Country | Link |
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| CN (1) | CN213709147U (en) |
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2020
- 2020-10-29 CN CN202022456627.1U patent/CN213709147U/en active Active
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