CN211645953U - Structure for flexibly connecting H-shaped steel-PHC combined pile with bridge abutment - Google Patents
Structure for flexibly connecting H-shaped steel-PHC combined pile with bridge abutment Download PDFInfo
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- CN211645953U CN211645953U CN202020092101.7U CN202020092101U CN211645953U CN 211645953 U CN211645953 U CN 211645953U CN 202020092101 U CN202020092101 U CN 202020092101U CN 211645953 U CN211645953 U CN 211645953U
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- shaped steel
- pile
- phc
- backing plate
- abutment
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 80
- 239000010959 steel Substances 0.000 claims abstract description 80
- 239000002131 composite material Substances 0.000 claims abstract description 22
- 238000003466 welding Methods 0.000 claims abstract description 12
- 238000012946 outsourcing Methods 0.000 claims abstract description 7
- 238000005253 cladding Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 of a wing thickness Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model relates to a structure of H shaped steel-PHC composite pile and abutment flexonics, including the PHC tubular pile, the ring flange, the bolt, elasticity outsourcing, H shaped steel, the steel backing plate, shear force key and abutment, bridge pile foundation upper segment is the composite pile that the H shaped steel hypomere is the PHC tubular pile, H shaped steel passes through welded fastening on the ring flange, the ring flange passes through the bolt and realizes being connected to the axis of ordinates with PHC tubular pile top, H shaped steel periphery cladding has elasticity outsourcing, H shaped steel top welding has the steel backing plate, the welding has the shear force key on the steel backing plate, composite pile pours as an organic wholely through steel backing plate and shear force key and abutment on upper. The utility model discloses the atress characteristics of make full use of stake under the horizontal load effect, the lower part adopts bending resistance weak, and vertical load is undertaken to the PHC tubular pile that compressive capacity is strong, and upper portion adopts the H shaped steel that bending resistance is strong mainly to undertake horizontal deformation, reaches the effect that makes the best use of, the atress is reasonable.
Description
Technical Field
The utility model relates to a structure of H shaped steel-PHC composite pile and abutment flexonics relates to fields such as bridge engineering.
Background
The bridge pile foundation buries the underground deeply, and the pile foundation fracture that the pile was caused can show the normal life who reduces the pile foundation and be difficult to change the maintenance. The pile foundation inevitably generates horizontal deformation under the action of vehicle load, temperature load and earthquake load, and the connection part of the bridge abutment and the pile foundation is a part which is easy to damage because the horizontal deformation capability of the pile foundation is poor, and the local damage caused by overlarge internal force of the pile top is caused by strong constraint action of the bridge abutment or the pile foundation on the pile foundation. For an integral bridge, when the whole length of the bridge is longer, the circulating temperature load can cause obvious pile-soil interaction, and a pile foundation can generate non-negligible temperature stress. How to reduce the restraint of abutment or platform to the pile foundation, reduce the horizontal resistance of pile side soil body to the pile foundation, increase the horizontal deformability of pile foundation, improve the atress of pile foundation and become the problem that awaits the solution urgently.
SUMMERY OF THE UTILITY MODEL
In view of the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a flexible connection structure between an H-shaped steel-PHC composite pile and an abutment.
In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides a structure of H shaped steel-PHC composite pile and abutment flexonics, including the PHC tubular pile, the ring flange, the bolt, elasticity outsourcing, H shaped steel, the steel backing plate, shear force key and abutment, bridge pile foundation upper segment is the composite pile that the H shaped steel hypomere is the PHC tubular pile, H shaped steel passes through welded fastening on the ring flange, the ring flange passes through the bolt and realizes that the axis of ordinates is connected with PHC tubular pile top, H shaped steel periphery cladding has the elasticity outsourcing, the welding of H shaped steel top has the steel backing plate, the welding has the shear force key on the steel backing plate, the composite pile pours as an organic wholely through steel backing plate and.
Preferably, the top of the PHC tubular pile is reserved with screw holes distributed annularly.
Preferably, the flange is circular, the thickness of the flange is not less than twice the thickness of the flange of the H-shaped steel, the diameter of the flange is equal to that of the PHC tubular pile, and mounting through holes corresponding to the PHC tubular pile are reserved.
Preferably, the flange width and the web height of the H-shaped steel are smaller than the diameter of the flange plate so as to arrange the mounting through holes.
Preferably, the inner surface of the elastic outer package is attached to the H-shaped steel, and the outer diameter of the elastic outer package is equal to the diameter of the PHC tubular pile; the bottom of the elastic outer package is flush with the top of the bolt, and the top of the elastic outer package is flush with the bottom surface of the steel base plate.
Preferably, the steel backing plate is circular, the thickness of the steel backing plate is not less than the thickness of the flange of the H-shaped steel, and the diameter of the steel backing plate is 1.2-1.5 times of that of the PHC tubular pile.
Preferably, the steel backing plate is welded with shear keys distributed in an annular mode, the shear keys are consistent with the traditional shear keys in structure and material, and the steel backing plate, the shear keys and the bridge abutment are poured into a whole.
Preferably, the length of the H-shaped steel embedded in the abutment is not less than twice the width of the flange.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model discloses the atress characteristics of make full use of stake under the horizontal load effect, the lower part adopts bending resistance weak, and vertical load is undertaken to the PHC tubular pile that compressive capacity is strong, and upper portion adopts the H shaped steel that bending resistance is strong mainly to undertake horizontal deformation, reaches the effect that makes the best use of and the atress is reasonable.
(2) The utility model discloses H shaped steel periphery cladding elasticity outsourcing effect is similar to the reaming, can produce inhomogeneous deformation and adapt to the horizontal displacement and the rotation of upper portion abutment, has increased the horizontal displacement ability that shifts of pile foundation, reaches the effect that reduces pile foundation level anti-thrust stiffness to reduce the internal force of pile foundation.
(3) The utility model discloses well PHC tubular pile has corrosion resistance and is strong, the excellent characteristics of injection ability, and upper segment H shaped steel elasticity is good, has buffer performance to lower part PHC tubular pile during the pile, thereby can reduce the crack that produces when lower part PHC tubular pile piles pile and improve construction quality, reduces later maintenance cost.
(4) The utility model discloses in PHC tubular pile, H shaped steel, bolt, ring flange, steel backing plate and shear force key all can be prefabricated in the mill, in field assembly, welding can, improve construction quality and speed.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
FIG. 2 is a first schematic diagram of a construction process.
FIG. 3 is a schematic diagram of the second construction step.
Fig. 4 is a schematic diagram of a third construction step.
FIG. 5 is a fourth schematic view of the construction steps.
Fig. 6 is a schematic diagram of a fifth construction step.
Fig. 7 is a sixth schematic view of the construction steps.
Detailed Description
In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1 to 7, a flexible connection structure of an H-shaped steel-PHC composite pile and an abutment comprises a PHC tubular pile 1, a flange 2, bolts 3, an elastic outer package 4, H-shaped steel 5, a steel backing plate 6, shear keys 7 and an abutment 8, wherein the upper section of a bridge pile foundation is a composite pile of which the lower section is a PHC tubular pile, the H-shaped steel is fixed on the flange by welding, the flange is connected with the top end of the PHC tubular pile in the longitudinal axial direction by bolts, the outer periphery of the H-shaped steel is coated with the elastic outer package, the top of the H-shaped steel is welded with the steel backing plate, the shear keys are welded on the steel backing plate, and the composite pile is cast with the upper; the abutment can also be a bridge bearing platform.
The embodiment of the utility model provides an in, PHC tubular pile top reservation has the screw that the annular distributes.
The embodiment of the utility model provides an in, the ring flange is circular, and thickness is not less than twice H shaped steel edge of a wing thickness, and its diameter equals with the PHC tubular pile, and reserves the installation through-hole corresponding with the PHC tubular pile.
The embodiment of the utility model provides an in, H shaped steel edge of a wing width and web height should be less than the ring flange diameter to arrange the installation through-hole.
In the embodiment of the utility model, the inner surface of the elastic outer package is attached to the H-shaped steel, and the outer diameter is equal to the diameter of the PHC pipe pile; the bottom of the elastic outer package is flush with the top of the bolt, and the top of the elastic outer package is flush with the bottom surface of the steel base plate.
In the embodiment of the utility model, the steel backing plate is circular, and steel backing plate thickness should not be less than H shaped steel edge of a wing thickness, and steel backing plate diameter is 1.2-1.5 times of PHC tubular pile diameter.
The embodiment of the utility model provides an in, the welding has the shear force key that the annular distributes on the steel backing plate, and the shear force key is unanimous with the structure and the material of traditional shear force key, and steel backing plate and shear force key are built as a whole with the abutment.
The embodiment of the utility model provides an in, the length of H shaped steel embedding abutment is not less than twice edge of a wing width.
A construction method of a flexible connection structure of an H-shaped steel-PHC combined pile and an abutment is carried out according to the following steps: step S1: piling the PHC tubular pile, wherein the pile head protrudes out of the ground surface by a certain height to facilitate subsequent construction; step S2: positioning the flange plate and anchoring the flange plate on the top of the PHC tubular pile by using bolts; step S3: positioning and welding the H-shaped steel on the flange plate according to the designed position, and welding a steel backing plate on the top of the H-shaped steel; step S4: performing waterproof rust removal treatment on the H-shaped steel, and coating the outer surface of the H-shaped steel with an elastic outer coating; step S5: piling the combined pile, reserving a certain height for an H-shaped steel pile head, and welding a shear key on a steel base plate; step S6: and pouring an upper abutment on the pile top, and carrying out proper maintenance.
The present invention is not limited to the above preferred embodiments, and any one can obtain the flexible connection structure between the H-beam-PHC composite pile and the abutment in various forms. All the equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.
Claims (8)
1. The utility model provides a structure of H shaped steel-PHC composite pile and abutment flexonics, includes PHC tubular pile, ring flange, bolt, elasticity outsourcing, H shaped steel, steel backing plate, shear force key and abutment, its characterized in that: bridge pile foundation upper segment is the composite pile that the H shaped steel hypomere is the PHC tubular pile, and H shaped steel passes through welded fastening on the ring flange, and the ring flange passes through the bolt to be connected with the realization axis of ordinates on PHC tubular pile top, and H shaped steel periphery cladding has elasticity outsourcing, and the welding of H shaped steel top has the steel backing plate, and the welding has the shear force key on the steel backing plate, and composite pile pours as an organic wholely through steel backing plate and shear force key and abutment on upper portion.
2. The structure of flexible connection of an H-beam-PHC composite pile and an abutment according to claim 1, wherein: and screw holes distributed in an annular mode are reserved in the top of the PHC tubular pile.
3. The structure of flexible connection of an H-beam-PHC composite pile and an abutment according to claim 1, wherein: the flange is circular, the thickness is not less than twice the thickness of the flange of the H-shaped steel, the diameter of the flange is equal to that of the PHC tubular pile, and a mounting through hole corresponding to the PHC tubular pile is reserved.
4. The structure of flexible connection of an H-beam-PHC composite pile and an abutment according to claim 1, wherein: the width of the flange and the height of the web plate of the H-shaped steel are smaller than the diameter of the flange plate so as to arrange the mounting through holes.
5. The structure of flexible connection of an H-beam-PHC composite pile and an abutment according to claim 1, wherein: the inner surface of the elastic outer package is attached to the H-shaped steel, and the outer diameter of the elastic outer package is equal to the diameter of the PHC tubular pile; the bottom of the elastic outer package is flush with the top of the bolt, and the top of the elastic outer package is flush with the bottom surface of the steel base plate.
6. The structure of flexible connection of an H-beam-PHC composite pile and an abutment according to claim 1, wherein: the steel backing plate is circular, the thickness of the steel backing plate is not less than the thickness of the flange of the H-shaped steel, and the diameter of the steel backing plate is 1.2-1.5 times of that of the PHC tubular pile.
7. The structure of flexible connection of an H-beam-PHC composite pile and an abutment according to claim 1, wherein: the steel backing plate is welded with shear keys distributed in an annular mode, the structure and the material of the shear keys are consistent with those of the traditional shear keys, and the steel backing plate, the shear keys and the bridge abutment are poured into a whole.
8. The structure of flexible connection of an H-beam-PHC composite pile and an abutment according to claim 1, wherein: the length of the H-shaped steel embedded into the abutment is not less than twice the width of the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020092101.7U CN211645953U (en) | 2020-01-16 | 2020-01-16 | Structure for flexibly connecting H-shaped steel-PHC combined pile with bridge abutment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020092101.7U CN211645953U (en) | 2020-01-16 | 2020-01-16 | Structure for flexibly connecting H-shaped steel-PHC combined pile with bridge abutment |
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| Publication Number | Publication Date |
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| CN211645953U true CN211645953U (en) | 2020-10-09 |
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| CN202020092101.7U Expired - Fee Related CN211645953U (en) | 2020-01-16 | 2020-01-16 | Structure for flexibly connecting H-shaped steel-PHC combined pile with bridge abutment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111021231A (en) * | 2020-01-16 | 2020-04-17 | 福州大学 | Structure for flexibly connecting H-shaped steel-PHC combined pile with bridge abutment and construction method thereof |
-
2020
- 2020-01-16 CN CN202020092101.7U patent/CN211645953U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111021231A (en) * | 2020-01-16 | 2020-04-17 | 福州大学 | Structure for flexibly connecting H-shaped steel-PHC combined pile with bridge abutment and construction method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201009 |