CN211171930U - Bolt type connecting structure for prefabricated hollow uplift pile - Google Patents
Bolt type connecting structure for prefabricated hollow uplift pile Download PDFInfo
- Publication number
- CN211171930U CN211171930U CN201921806569.1U CN201921806569U CN211171930U CN 211171930 U CN211171930 U CN 211171930U CN 201921806569 U CN201921806569 U CN 201921806569U CN 211171930 U CN211171930 U CN 211171930U
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- pile
- hollow pile
- hollow
- connecting rod
- bolt
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- 239000007787 solid Substances 0.000 claims abstract description 51
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000003466 welding Methods 0.000 claims description 7
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 abstract description 2
- 239000004567 concrete Substances 0.000 description 6
- 239000004570 mortar (masonry) Substances 0.000 description 5
- 238000010030 laminating Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
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Abstract
The utility model discloses a prefabricated hollow uplift pile bolt formula connection structure, including upper segment hollow pile and lower segment hollow pile, upper segment hollow pile and lower segment hollow pile's link is equipped with reservation bolt hole A to upper segment hollow pile and lower segment hollow pile carry out interconnect through the solid core connective bar, the both ends of solid core connective bar are equipped with reservation bolt hole B, and in the tip hollow of upper segment hollow pile and lower segment hollow pile was inserted respectively at the both ends of solid core connective bar, adopt bolt and fixation nut to carry out fixed connection with upper segment hollow pile and lower segment hollow pile respectively with the both ends of solid core connective bar simultaneously, the bolt passes reservation bolt hole A and reserves bolt hole B, and its both ends are stretched out reservation bolt hole A and are fixed through fixation nut. The utility model discloses greatly promoted shearing, the bending resistance bearing capacity at hollow pile joint position. Meanwhile, the connection mode of the structure has the advantages of convenient construction, direct force transmission, definite stress and controllable and reliable quality.
Description
Technical Field
The utility model relates to a prefabricated hollow anti-floating pile bolt formula connection structure belongs to anti-floating pile butt joint construction field in the building engineering.
Background
The uplift pile is widely applied to basements of building engineering, high-rise buildings, offshore wharf platforms, anchor pile foundations of suspension bridges and cable-stayed bridges, pile foundations of large ship dock baseboards, anchor pile foundations in static load loading trial assembly and the like. At present, uplift piles are single-section uplift piles and multi-section uplift piles according to stress conditions. In the construction of connecting multi-section piles, the force transmission between the prefabricated hollow concrete uplift piles and between the piles and the foundation members is completed through the modes of pile body reinforcing steel bars or end plate welding reinforcing steel bars, concrete pouring and the like. Traditionally, the inner wall of a prefabricated hollow pile is smooth, the bonding strength between core filling concrete and the inner wall of the hollow pile is low, and when a large pulling resistance is achieved for design, the length of the core filling concrete is long. The longer core filling concrete is not beneficial to tamping, so the quality of the filling concrete is difficult to ensure. Meanwhile, the existing building industry requires that the main reinforcement of the precast concrete member is fast and firm in butt joint, and the requirement cannot be met by adopting a welding mode.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a construction convenience, bearing capacity are strong, the high hollow uplift pile bolt formula connection structure of safe and reliable degree.
In order to realize the purpose, the utility model discloses the technical scheme who takes is: the utility model provides a prefabricated hollow uplift pile bolt formula connection structure, includes upper segment hollow pile and lower segment hollow pile, its characterized in that, the link of upper segment hollow pile and lower segment hollow pile is equipped with reserve bolt hole A to upper segment hollow pile and lower segment hollow pile carry out interconnect through the solid core connective bar, the both ends of solid core connective bar are equipped with reserve bolt hole B, and the both ends of solid core connective bar insert the hollow inside of upper segment hollow pile and lower segment hollow pile respectively, adopt bolt and fixation nut to carry out fixed connection with upper segment hollow pile and lower segment hollow pile respectively with the both ends of solid core connective bar simultaneously, the bolt passes reserve bolt hole A and reserve bolt hole B, and its both ends stretch out reserve bolt hole A and fix through fixation nut.
Preferably, both ends tip of solid connective bar is equipped with connective bar upper end plate and connective bar lower end plate respectively, the diameter of connective bar upper end plate and connective bar lower end plate is greater than the diameter of solid connective bar.
Preferably, the solid connecting rod is internally provided with a built-in steel bar, and the connecting rod upper end plate and the connecting rod lower end plate are fixedly connected with the built-in steel bar in the solid connecting rod in a welding mode.
Preferably, the diameter of the solid connecting rod is smaller than the inner diameter of the upper hollow pile and the lower hollow pile, and a gap for grouting is reserved between the outer wall of the solid connecting rod and the inner wall of the hollow pile.
Preferably, the shape of the connecting rod upper end plate and the connecting rod lower end plate is consistent with the shape of the inner holes of the upper hollow pile section and the lower hollow pile section, and the size of the end plates is slightly smaller than the size of the inner holes of the hollow piles.
Preferably, reinforcing steel bars or prestressed tendons are arranged in the solid parts of the upper hollow pile and the lower hollow pile, hollow steel end plates are arranged at the end parts, butted with each other, of the upper hollow pile and the lower hollow pile, and the lower steel end plate of the upper pile and the upper steel end plate of the lower pile are welded with each other after the upper hollow pile and the lower hollow pile are butted.
Preferably, the front end that fixation nut is close to the hollow pile is equipped with the nut gasket, the terminal surface of nut gasket orientation fixation nut is the plane, and the nut gasket matches the laminating each other with the surface of hollow pile towards the terminal surface of hollow pile.
Preferably, the cross section of the hollow pile is circular, and the end face of the nut gasket, which faces the hollow pile, is in a concave arc shape; or the cross section of the hollow pile is in a house shape, and the end face of the nut gasket, which faces the hollow pile, is a plane.
Preferably, the upper hollow pile, the lower hollow pile and the solid connecting rod are all prefabricated components.
The utility model has the advantages as follows:
1. under the horizontal force effect, the hollow pile connecting part is the weakest place of the basic type, and compared with the traditional hollow pile connecting mode, the solid rod connecting mode can greatly improve the shearing resistance and bending resistance bearing capacity of the hollow pile joint part.
2. The solid rod pin connection mode mainly uses the pins and the solid rods to transfer stress, and the welding of the steel end plates of the upper hollow pile and the lower hollow pile and the micro-expansion mortar between the solid rods and the hollow piles can play a role in transferring force up and down, so that the safety redundancy of the whole pile foundation is enhanced.
3. The both ends of real core connective bar set up the end plate, can be fine detain the mortar in the clearance between real core connective bar and hollow pile, prevent to leak the thick liquid.
4. The connection mode has convenient construction, direct force transmission and definite stress; and adopt factory prefabricated component, the quality is controllable, the degree of safety is high, easily detect.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is an exploded view of the present invention.
Fig. 2 is an assembly diagram of the present invention.
Labeled as: 1-upper hollow pile, 2-lower hollow pile, 3-solid connecting rod, 4-reserved bolt hole A, 5-reserved bolt hole B, 6-bolt, 7-fixing nut, 8-connecting rod upper end plate, 9-connecting rod lower end plate, 10-upper pile lower steel end plate, 11-lower pile upper steel end plate, 12-nut gasket and 13-micro-expansion mortar.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 and 2, a prefabricated hollow uplift pile bolt type connecting structure comprises an upper hollow pile 1 and a lower hollow pile 2, wherein a reserved bolt hole a4 is formed in the connecting end of the upper hollow pile 1 and the lower hollow pile 2, the upper hollow pile 1 and the lower hollow pile 2 are connected with each other through a solid connecting rod 3, reserved bolt holes B5 are formed in two ends of the solid connecting rod 3, two ends of the solid connecting rod 3 are respectively inserted into the end hollow parts of the upper hollow pile 1 and the lower hollow pile 2, meanwhile, bolts 6 and fixing nuts 7 are adopted to fixedly connect two ends of the solid connecting rod 3 with the upper hollow pile 1 and the lower hollow pile 2 respectively, the bolts 6 penetrate through the reserved bolt holes a4 and the reserved bolt holes B5, and two ends of the bolts extend out of the reserved bolt holes a4 and are fixed through the fixing nuts 7.
In this embodiment, both ends tip of solid connective bar 3 is equipped with connective bar upper end plate 8 and connective bar lower end plate 9 respectively, the diameter of connective bar upper end plate 8 and connective bar lower end plate 9 is greater than the diameter of solid connective bar 3. The steel bars are arranged in the solid connecting rod 3, and the connecting rod upper end plate 8 and the connecting rod lower end plate 9 are fixedly connected with the steel bars arranged in the solid connecting rod 3 in a welding mode.
In this embodiment, a gap for grouting is left between the outer wall of the solid connecting rod 3 and the inner wall of the hollow pile. Simultaneously the shape of end plate 9 keeps unanimous with the hole shape of upper segment hollow pile 1 and lower segment hollow pile 2 under the shape of connective bar upper end plate 8 and connective bar, and the size of end plate slightly is less than the size of hollow pile hole to inside solid connective bar 3 gets into the hollow pile.
In this embodiment, the solid portions of the upper hollow pile 1 and the lower hollow pile 2 are provided with steel bars or prestressed bars, the end portions of the upper hollow pile 1 and the lower hollow pile 2, which are butted, are provided with hollow steel end plates, and the lower steel end plate 10 of the upper hollow pile and the upper steel end plate 11 of the lower hollow pile are welded to each other after the upper hollow pile and the lower hollow pile are butted.
In this embodiment, fixation nut 7 is close to the front end of hollow pile and is equipped with nut gasket 12, nut gasket 12 is the plane towards fixation nut 7's terminal surface, and nut gasket 12 matches the laminating each other towards the terminal surface of hollow pile and the surface of hollow pile. For example, when the cross section of the hollow pile is circular, the end surface of the nut gasket facing the hollow pile is in a concave arc shape; or when the cross section of the hollow pile is square, the end face of the nut gasket, which faces the hollow pile, is a plane. In addition, the shape of the plug 6 in the embodiment is not limited, and may be circular or square, and the number of the plug 6 and the plug hole is not limited to one, and may be multiple directions.
The utility model discloses a construction method as follows:
1. static pressing the lower hollow pile 2 into the soil, and reserving a certain height above the ground to facilitate pile splicing;
2. inserting a solid connecting rod 3 into the top end part of the lower hollow pile 2;
3. horizontally rotating and adjusting the solid connecting rod 3, and aligning a reserved bolt hole B5 on the solid connecting rod 3 with a reserved bolt hole A4 on the lower hollow pile 2;
4. inserting the bolt 6 into the reserved bolt hole B5 and the reserved bolt hole A4 in the step 3, and fixing two ends of the bolt 6 by using a fixing nut 7 and a nut gasket 12.
5. Aligning the lower end of the upper hollow pile section 1 to the upper end of the solid connecting rod 3 by utilizing pile feeding equipment, and placing the lower end of the upper hollow pile section 1 to the top of the lower hollow pile section 2 from top to bottom, wherein the upper end of the solid connecting rod 3 enters the lower end part of the upper hollow pile section 1;
6. horizontally rotating and adjusting the upper hollow pile section 1, and aligning a reserved bolt hole A4 on the upper hollow pile section 1 with a reserved bolt hole B5 on the solid connecting rod 3;
7. injecting micro-expansion mortar 13 into the hollow pile through one of the reserved bolt holes A4 on the upper section hollow pile 1 until the micro-expansion mortar 13 is filled in the gap between the solid connecting rod 3 and the hollow pile;
8. inserting a bolt 6 into the reserved bolt hole B5 and the reserved bolt hole A4 in the step 6, fixing two ends of the bolt 6 by using a fixing nut 7 and a nut gasket 12, and then welding the butted upper pile lower steel end plate 10 and the butted lower pile upper steel end plate 11;
9. and after a period of time, statically pressing the upper hollow pile 1 into the soil, reserving a certain height above the ground, and then circulating the steps to carry out the next pile splicing.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the scope of the present invention in any way, and all technical solutions obtained by using equivalent substitution modes and the like fall within the scope of the present invention.
The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.
Claims (9)
1. The utility model provides a prefabricated hollow uplift pile bolt formula connection structure, includes upper segment hollow pile and lower segment hollow pile, its characterized in that, the link of upper segment hollow pile and lower segment hollow pile is equipped with reserve bolt hole A to upper segment hollow pile and lower segment hollow pile carry out interconnect through the solid core connective bar, the both ends of solid core connective bar are equipped with reserve bolt hole B, and the both ends of solid core connective bar insert the hollow inside of upper segment hollow pile and lower segment hollow pile respectively, adopt bolt and fixation nut to carry out fixed connection with upper segment hollow pile and lower segment hollow pile respectively with the both ends of solid core connective bar simultaneously, the bolt passes reserve bolt hole A and reserve bolt hole B, and its both ends stretch out reserve bolt hole A and fix through fixation nut.
2. The plug-type connecting structure of the prefabricated hollow uplift pile according to claim 1, wherein the end parts of the two ends of the solid connecting rod are respectively provided with an upper connecting rod end plate and a lower connecting rod end plate, and the diameters of the upper connecting rod end plate and the lower connecting rod end plate are larger than that of the solid connecting rod.
3. The plug-type connecting structure of the prefabricated hollow uplift pile according to claim 2, wherein the built-in steel bars inside the solid connecting rod are fixedly connected with the built-in steel bars inside the solid connecting rod through welding.
4. The bolt-type connecting structure for the prefabricated hollow uplift pile according to claim 2 or 3, wherein the diameter of the solid connecting rod is smaller than the inner diameter of the upper hollow pile and the lower hollow pile, and a gap for grouting is reserved between the outer wall of the solid connecting rod and the inner wall of the hollow pile.
5. The bolt-type connecting structure for the prefabricated hollow uplift pile according to claim 2 or 3, wherein the shapes of the upper end plate of the connecting rod and the lower end plate of the connecting rod are consistent with the shapes of the inner holes of the upper hollow pile and the lower hollow pile, and the sizes of the end plates are slightly smaller than the sizes of the inner holes of the hollow piles.
6. The bolt-type connecting structure for the prefabricated hollow uplift pile according to claim 1, wherein reinforcing steel bars or prestressed steel bars are arranged in solid parts of the upper hollow pile and the lower hollow pile, hollow steel end plates are arranged at the butt joint ends of the upper hollow pile and the lower hollow pile, and the lower steel end plate of the upper pile and the upper steel end plate of the lower pile are welded after butt joint.
7. The bolt type connecting structure for the prefabricated hollow uplift pile as claimed in claim 1, wherein a nut gasket is arranged at the front end of the fixing nut close to the hollow pile, the end face of the nut gasket facing the fixing nut is a plane, and the end face of the nut gasket facing the hollow pile is matched and attached to the outer surface of the hollow pile.
8. The bolt-type connecting structure for the prefabricated hollow uplift pile according to claim 7, wherein the cross section of the hollow pile is circular, and the end face, facing the hollow pile, of the nut gasket is concave in a circular arc shape; or the cross section of the hollow pile is square, and the end face of the nut gasket, which faces the hollow pile, is a plane.
9. The prefabricated hollow uplift pile bolt type connecting structure is characterized in that the upper hollow pile, the lower hollow pile and the solid connecting rod are prefabricated components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921806569.1U CN211171930U (en) | 2019-10-25 | 2019-10-25 | Bolt type connecting structure for prefabricated hollow uplift pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921806569.1U CN211171930U (en) | 2019-10-25 | 2019-10-25 | Bolt type connecting structure for prefabricated hollow uplift pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211171930U true CN211171930U (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921806569.1U Expired - Fee Related CN211171930U (en) | 2019-10-25 | 2019-10-25 | Bolt type connecting structure for prefabricated hollow uplift pile |
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|---|---|
| CN (1) | CN211171930U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670581A (en) * | 2019-10-25 | 2020-01-10 | 南京金宸建筑设计有限公司 | Bolt type connecting structure for prefabricated hollow uplift pile |
| CN112211190A (en) * | 2020-09-23 | 2021-01-12 | 国网江苏省电力有限公司连云港供电分公司 | FRP sleeve and steel pipe prefabricated assembled combined spiral pile and pile forming method |
-
2019
- 2019-10-25 CN CN201921806569.1U patent/CN211171930U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670581A (en) * | 2019-10-25 | 2020-01-10 | 南京金宸建筑设计有限公司 | Bolt type connecting structure for prefabricated hollow uplift pile |
| CN112211190A (en) * | 2020-09-23 | 2021-01-12 | 国网江苏省电力有限公司连云港供电分公司 | FRP sleeve and steel pipe prefabricated assembled combined spiral pile and pile forming method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200804 |
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| CF01 | Termination of patent right due to non-payment of annual fee |