CN214272110U - Anti-seismic concrete pile foundation structure - Google Patents
Anti-seismic concrete pile foundation structure Download PDFInfo
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- CN214272110U CN214272110U CN202022843150.2U CN202022843150U CN214272110U CN 214272110 U CN214272110 U CN 214272110U CN 202022843150 U CN202022843150 U CN 202022843150U CN 214272110 U CN214272110 U CN 214272110U
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Abstract
The application relates to an anti-seismic concrete pile foundation structure, which comprises a bottom pile, a top pile and a bearing platform arranged above the top pile, wherein the bottom pile comprises a bottom pile body and a bottom sliding seat fixed at the upper end of the bottom pile body, and the top pile comprises a top pile body and a lower sliding seat fixed at the lower end of the top pile body; the anti-seismic device comprises an upper connecting seat and a lower connecting seat which are fixed with each other and enclose a cavity structure, the lower end of a top pile body penetrates through the upper connecting seat, the upper end of a bottom pile body penetrates through the lower connecting seat, the lower sliding seat and a bottom sliding seat are both arranged in a cavity enclosed by the upper connecting seat and the lower connecting seat, and anti-seismic mortar is filled in the cavity enclosed by the upper connecting seat and the lower connecting seat. This application has the effect that can improve the shock resistance of pile foundation.
Description
Technical Field
The application relates to the technical field of concrete pile foundations, in particular to an anti-seismic concrete pile foundation structure.
Background
Deep foundations consisting of piles and pile caps connected to the tops of the piles or single-pile foundations consisting of columns connected to pile foundations, referred to as pile foundations for short. The pile foundation needs to bear almost the entire weight and load of the building, so the reliability of the pile foundation is directly related to the reliability of the whole building.
In modern building design, earthquake resistance is increasingly regarded as an important safety factor. The seismic performance of the building has great influence on the safety coefficient of the building, so that the seismic performance of the pile foundation also needs to be considered when the pile foundation is designed. The influence of earthquake on the building is generated by earthquake waves which are divided into longitudinal waves and transverse waves, so that the building can be made to pitch up and down and shake horizontally,
at present, the patent document with the publication number of CN202031104U discloses a composite pile foundation, which has the main technical scheme that, the composite pile foundation comprises a pile body implanted into a soil layer, a pile cap is arranged at the top of the pile body, the pile cap is provided with a cavity capable of accommodating the top of the pile body, and the top of the pile body is sleeved in the cavity of the pile cap. The composite pile foundation solves the problems of weak bending resistance and weak uplift resistance of the pile foundation.
In view of the above-mentioned related technologies, the inventor believes that when an earthquake occurs, the composite pile foundation completely bears the impact of transverse waves and longitudinal waves of the earthquake by the strength of the composite pile foundation, and the earthquake resistance is poor, so that improvement is needed.
SUMMERY OF THE UTILITY MODEL
In order to improve the anti-seismic performance of pile foundation, this application provides an anti-seismic type concrete pile foundation structure.
The application provides a antidetonation type concrete pile foundation structure adopts following technical scheme:
an anti-seismic concrete pile foundation structure comprises a bottom pile, a top pile and a bearing platform arranged above the top pile, wherein the bottom pile comprises a bottom pile body and a bottom sliding seat fixed at the upper end of the bottom pile body, and the top pile comprises a top pile body and a lower sliding seat fixed at the lower end of the top pile body; the anti-seismic device comprises an upper connecting seat and a lower connecting seat which are fixed with each other and enclose a cavity structure, the lower end of a top pile body penetrates through the upper connecting seat, the upper end of a bottom pile body penetrates through the lower connecting seat, the lower sliding seat and a bottom sliding seat are both arranged in a cavity enclosed by the upper connecting seat and the lower connecting seat, and anti-seismic mortar is filled in the cavity enclosed by the upper connecting seat and the lower connecting seat.
Through adopting above-mentioned technical scheme, when taking place the earthquake, earthquake longitudinal wave makes the cushion cap drive top stake and bottom stake drunkenness from top to bottom to lower sliding seat and bottom sliding seat can play from top to bottom in the cavity that last connecting seat and lower connecting seat formed, and the antidetonation mortar that fills in the cavity that goes up connecting seat and lower connecting seat formed has elasticity, can absorb the energy that the part comes from the longitudinal wave, thereby can cushion the destructiveness of longitudinal wave, has improved the holistic anti-seismic performance of pile foundation.
Optionally, the upper end of the top pile body is fixedly provided with an upper sliding seat, the top pile and a top anti-seismic device are arranged between the bearing platforms, the top anti-seismic device comprises a top connecting seat fixedly arranged on the bearing platform and a top cover fixedly arranged on the top connecting seat, the top cover and the top connecting seat form a cavity structure in a surrounding mode, the upper end of the top pile body penetrates through the top cover, the upper sliding seat is arranged in a cavity formed by the top connecting seat and the top cover in a surrounding mode, and anti-seismic mortar is filled in the cavity formed by the top connecting seat and the top cover in a surrounding mode.
By adopting the technical scheme, the upper sliding seat moves up and down in the cavity formed by the top connecting seat and the top cover due to the seismic longitudinal waves, the energy of the longitudinal waves is absorbed by the anti-seismic mortar in the cavity formed by the top connecting seat and the top cover, and the building on the top of the bearing platform is equivalently elastically supported on the top pile, so that the destructiveness of the longitudinal waves is reduced.
Optionally, the upper connecting seat and the lower connecting seat are both of a tubular structure with an opening at one end, the opening of the upper connecting seat faces downwards, the opening of the lower connecting seat faces upwards, a gap is formed between the top of the lower sliding seat and the top of the upper connecting seat, the anti-seismic mortar is filled in the gap, a gap is formed between the lower sliding seat and the bottom sliding seat, the anti-seismic mortar is filled in the gap, a gap is formed between the bottom sliding seat and the bottom of the lower connecting seat, and the anti-seismic mortar is filled in the gap.
Through adopting above-mentioned technical scheme, slide holder, bottom slide holder down to and go up and take place relative movement between these three of cavity structure that connecting seat and lower connecting seat formed, all have antidetonation mortar to play the cushioning effect, no matter how so the frequency of earthquake longitudinal wave, bottom antidetonation device homoenergetic is enough to play good buffering effect to the longitudinal wave.
Optionally, the bearing platform is of a horizontally arranged plate-shaped structure, the top connecting seat is of a cylindrical structure and is open downwards, the top connecting seat is fixed on the lower surface of the bearing platform, the top cover is of a cylindrical structure with an upward opening, a gap is formed between the upper sliding seat and the lower surface of the bearing platform, the gap is filled with the anti-seismic mortar, a gap is formed between the bottom of the upper sliding seat and the bottom of the top cover, and the gap is filled with the anti-seismic mortar.
Through adopting above-mentioned technical scheme, all be provided with the clearance between last sliding seat and cushion cap and the top cap, no matter go up the sliding seat and upwards or move downwards for the cushion cap, all have the buffering mortar to provide ascending or decurrent cushioning effect for going up the sliding seat, be favorable to improving the effect that the top antidetonation device resisted the longitudinal wave.
Optionally, the bottom anti-seismic device further comprises an anti-seismic table fixed to the lower connecting seat, the anti-seismic table is of a disc structure, the bottom pile body penetrates through the anti-seismic table, and the anti-seismic table is fixedly provided with a plurality of scattered-force piles of rod-shaped structures.
By adopting the technical scheme, when an earthquake occurs, the transverse wave causes the bottom pile body to apply acting force to the anti-seismic platform, and the dispersed force pile spreads the kinetic energy of the transverse wave to the ground, so that the capability of the pile foundation for resisting the transverse wave integrally is improved.
Optionally, an upper flange is fixedly arranged at the edge of the opening of the upper connecting seat, a lower flange is fixedly arranged at the edge of the opening of the lower connecting seat, a plurality of positioning holes are formed in the upper flange and the lower flange, connecting bolts penetrate through the positioning holes, and connecting nuts are connected to the connecting bolts through threads.
Through adopting above-mentioned technical scheme, connecting bolt and coupling nut mutually support, have realized going up the connecting seat and the fixed mounting dismantled of connecting seat down, facilitate for the construction of pile foundation.
Optionally, a top flange is fixedly arranged at the edge of the opening of the top connecting seat, a cover flange is fixedly arranged at the edge of the opening of the top cover, a plurality of mounting holes are formed in the top flange and the cover flange, locking bolts penetrate through the mounting holes, and locking nuts are connected to the locking bolts through threads.
Through adopting above-mentioned technical scheme, locking bolt and lock nut have realized the fixed mounting that can dismantle between top cap and the top connecting seat, have provided convenience for the construction of pile foundation.
Optionally, a buffer spring is sleeved on the pile jacking body, the upper end of the buffer spring abuts against the top cover, and the lower end of the buffer spring abuts against the upper connecting seat.
Through adopting above-mentioned technical scheme, when taking place the earthquake, the buffering spring can be stretched or compressed because of the change of the distance between top cap and the last connecting seat to absorb the energy of some seismic longitudinal wave, be favorable to improving the holistic antidetonation effect of pile foundation.
Drawings
Fig. 1 is a schematic view of the overall structure of the present application.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a partially enlarged schematic view of a portion B in fig. 1.
Description of reference numerals: 1. piling at the bottom; 11. a bottom pile body; 12. a bottom sliding seat; 2. piling at the top; 21. jacking a pile body; 22. an upper sliding seat; 23. a lower sliding seat; 3. a bearing platform; 4. a bottom anti-seismic device; 41. an upper connecting seat; 411. an upper connecting hole; 412. an upper flange; 42. a lower connecting seat; 421. a lower connection hole; 422. a lower flange; 43. an anti-seismic table; 431. a hole of abdication; 432. pile for dissipating force; 5. a top anti-seismic device; 51. a top connection base; 511. a top flange; 52. a top cover; 521. covering the hole; 522. a lid flange; 6. positioning holes; 61. a connecting bolt; 62. a connecting nut; 7. mounting holes; 71. a locking bolt; 72. a locking nut; 8. anti-seismic mortar; 9. a buffer spring.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses antidetonation type concrete pile foundation structure. Referring to fig. 1, antidetonation type concrete pile foundation structure includes bottom stake 1, top stake 2 and cushion cap 3, wherein, cushion cap 3 is used for bearing the weight of the building, bottom stake 1 and top stake 2 are the concrete cylinder of vertical setting, bottom stake 1 and top stake 2 set up along same axis, be provided with bottom antidetonation device 4 between bottom stake 1 and the top stake 2, bottom stake 1 and top stake 2 are connected through bottom antidetonation device 4, the top of top stake 2 is provided with top antidetonation device 5, top stake 2 is connected with cushion cap 3 through top antidetonation device 5.
Referring to fig. 1, the bottom pile 1 includes a bottom pile body 11 and a bottom sliding seat 12, the bottom pile body 11 is a vertically arranged cylindrical structure, the lower end of the bottom pile body 11 is inserted into the ground, the bottom sliding seat 12 is fixed at the upper end of the bottom pile body 11, the bottom sliding seat 12 is a cylindrical structure with a diameter larger than that of the bottom pile body 11, and the bottom sliding seat 12 and the bottom pile body 11 are coaxially arranged; the top pile 2 comprises a top pile body 21, an upper sliding seat 22 and a lower sliding seat 23, the top pile body 21 is a vertically arranged cylinder structure and is coaxially arranged with the bottom pile body 11, the upper sliding seat 22 and the lower sliding seat 23 are respectively fixed at the upper end and the lower end of the top pile body 21, the upper sliding seat 22 and the lower sliding seat 23 are cylinder structures with a diameter larger than that of the top pile body 21, the upper sliding seat 22 and the lower sliding seat 23 are coaxially arranged with the top pile body 21, and the upper sliding seat 22 and the lower sliding seat 23 are the same in diameter and are the same in diameter with the bottom sliding seat 12.
Referring to fig. 1, the bottom anti-seismic device 4 includes an upper connection seat 41 and a lower connection seat 42, where the upper connection seat 41 and the lower connection seat 42 are both of a cylindrical structure with an opening at one end, the openings of the upper connection seat 41 and the lower connection seat 42 are oppositely arranged, a circular upper connection hole 411 is formed on the end surface of the upper connection seat 41 facing the opening, a circular lower connection hole 421 is formed on the end surface of the lower connection seat 42 facing the opening, the top pile body 21 passes through the upper connection hole 411, the top pile body 21 is attached to the side wall of the upper connection hole 411, and the lower sliding seat 23 is in sliding fit with the inner cavity of the upper connection seat 41; the bottom pile body 11 penetrates through the lower connecting hole 421, the bottom pile body 11 is attached to the side wall of the lower connecting hole 421, and the bottom sliding seat 12 is in sliding fit with the inner cavity of the lower connecting seat 42.
Referring to fig. 1 and 2, an upper flange 412 is fixedly arranged at the edge of an opening of the upper connecting seat 41, the upper flange 412 is of an annular plate-shaped structure, a lower flange 422 is fixedly arranged at the edge of an opening of the lower connecting seat 42, the lower flange 422 is also of an annular plate-shaped structure, a plurality of through positioning holes 6 are formed in the upper flange 412 and the lower flange 422, the positioning holes 6 in the upper flange 412 and the positioning holes 6 in the lower flange 422 are in one-to-one correspondence, connecting bolts 61 penetrate through the positioning holes 6, connecting nuts 62 are connected to the connecting bolts 61 through threads, and the upper connecting seat 41 and the lower connecting seat 42 are fixed through the matching of the connecting bolts 61 and the connecting nuts 62.
Referring to fig. 1, the inside of upper connecting seat 41 and lower connecting seat 42 forms a cavity structure, a gap is formed between lower sliding seat 23 and bottom sliding seat 12, anti-seismic mortar 8 is filled in the gap, a gap is also formed between the top of inner cavity of upper connecting seat 41 and lower sliding seat 23, anti-seismic mortar 8 is filled in the gap, a gap is also formed between bottom sliding seat 12 and bottom of inner cavity of lower connecting seat 42, anti-seismic mortar 8 is filled in the gap, anti-seismic mortar 8 has elasticity, when an earthquake occurs, lower sliding seat 23 and bottom sliding seat 12 can vertically extrude anti-seismic mortar 8 in the cavity, anti-seismic mortar 8 deforms to absorb a part of energy, and destructiveness of earthquake longitudinal waves is reduced.
Referring to fig. 1 and 3, the bearing platform 3 is a horizontally disposed plate-shaped structure, the top anti-vibration device 5 includes a top connection seat 51 fixedly disposed on a lower surface of the bearing platform 3, the top connection seat 51 is a cylindrical structure and has a downward opening, the top connection seat 51 is disposed coaxially with the top pile body 21, the upper sliding seat 22 is slidably fitted with an inner wall of the top connection seat 51, in addition, the top anti-vibration device 5 further includes a top cover 52 mounted on the top connection seat 51, the top cover 52 is a cylindrical structure with an open end, the opening of the top cover 52 is disposed upward, a cover hole 521 is disposed on an end surface of the top cover 52 opposite to the opening, the top pile body 21 passes through the cover hole 521 and is attached to an inner wall of the cover hole 521, in addition, a top flange 511 is fixedly disposed on an edge of the opening of the top connection seat 51, the top flange 511 is an annular plate-shaped structure, a cover flange 522 is fixedly disposed on an edge of the opening of the top cover 52, and the cover flange 522 is also an annular plate-shaped structure, the top flange 511 and the cover flange 522 are respectively provided with a plurality of through mounting holes 7, the mounting holes 7 on the top flange 511 and the mounting holes 7 on the cover flange 522 are in one-to-one correspondence, locking bolts 71 penetrate through the mounting holes 7, locking nuts 72 are in threaded connection with the locking bolts 71, and the top connecting base 51 and the top cover 52 are fixed through the matching of the locking bolts 71 and the locking nuts 72.
Referring to fig. 1, a cavity structure is formed inside the top connection seat 51 and the top cover 52, a gap is formed between the upper sliding seat 22 and the lower surface of the bearing platform 3, the gap is filled with anti-seismic mortar 8, a gap is also formed between the upper sliding seat 22 and the bottom of the inner cavity of the top cover 52, and the gap is filled with anti-seismic mortar 8, so that the top pile body 21 is elastically connected with the bearing platform 3 through the upper sliding seat 22, and when an earthquake occurs, a buffering effect is formed through the anti-seismic mortar 8 in the inner cavity of the top connection seat 51 and the top cover 52, and the energy of longitudinal waves of the earthquake is absorbed.
Referring to fig. 1, the bottom anti-seismic device 4 further includes an anti-seismic table 43 disposed on the lower connection seat 42, the anti-seismic table 43 is a circular disc structure, a through abdicating hole 431 is formed in the anti-seismic table 43, the bottom pile body 11 passes through the abdicating hole 431 and is attached to an inner wall of the abdicating hole 431, an upper surface of the anti-seismic table 43 is fixed at the bottom of the lower connection seat 42, a force dispersing pile 432 is fixedly disposed on a lower surface of the anti-seismic table 43, the force dispersing pile 432 is a circular rod and is vertically disposed, a lower end of the force dispersing pile 432 is a tip end, when an earthquake occurs, transverse waves cause the bottom pile body 11 to apply an acting force to the anti-seismic table 43, and the force dispersing pile 432 disperses kinetic energy of the transverse waves to the ground, so that the capability of resisting the transverse waves as a whole is improved.
Referring to fig. 1, the top pile body 21 is sleeved with a buffer spring 9, the upper end of the buffer spring 9 is abutted to the top cover 52, the lower end of the buffer spring 9 is abutted to the upper connecting seat 41, and when an earthquake occurs, the buffer spring 9 is stretched or compressed due to the change of the distance between the top cover 52 and the upper connecting seat 41, so that the energy of longitudinal waves of a part of earthquakes is absorbed, and the integral anti-seismic effect of the pile foundation is improved.
The implementation principle of antidetonation type concrete pile foundation structure of this application embodiment does: when an earthquake occurs, the building on the bearing platform 3 moves up and down due to the longitudinal wave of the earthquake and swings left and right due to the transverse wave of the earthquake, so that the top pile 2 and the bottom pile 1 are driven to move up and down and swing left and right; when the longitudinal wave comes, the upper sliding seat 22 can slide in a cavity formed by the top connecting seat 51 and the top cover 52, the lower sliding seat 23 and the bottom sliding seat 12 can slide in a cavity formed by the upper connecting seat 41 and the lower connecting seat 42, and then the anti-seismic mortar 8 is compressed to enable the anti-seismic mortar 8 to absorb energy, so that the destructiveness of the longitudinal wave is reduced; when the transverse wave arrives, the bottom pile 1 drives the anti-seismic platform 43 to rock left and right, the kinetic energy of the transverse wave is transmitted to the ground through the force dispersing pile 432, and the transverse wave is buffered.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides an antidetonation type concrete pile foundation structure, includes bottom stake (1), top stake (2) and installs cushion cap (3) in top stake (2) top, its characterized in that: the bottom pile (1) comprises a bottom pile body (11) and a bottom sliding seat (12) fixed at the upper end of the bottom pile body (11), and the top pile (2) comprises a top pile body (21) and a lower sliding seat (23) fixed at the lower end of the top pile body (21);
bottom stake (1) with be provided with bottom antidetonation device (4) between top stake (2), bottom antidetonation device (4) are including last connecting seat (41) and lower connecting seat (42) of reciprocal anchorage and enclosing into the cavity structure, and connecting seat (41) are passed to the lower extreme of top stake body (21), and connecting seat (42) are passed down to the upper end of bottom stake body (11), and lower sliding seat (23) and bottom sliding seat (12) all set up in the cavity that last connecting seat (41) and lower connecting seat (42) enclose, and the cavity intussuseption that goes up connecting seat (41) and lower connecting seat (42) enclose is filled with antidetonation mortar (8).
2. An earthquake-resistant concrete pile foundation structure according to claim 1, characterized in that: the upper end of the top pile body (21) is fixedly provided with an upper sliding seat (22), the top pile (2) and a top anti-seismic device (5) is arranged between the bearing platforms (3), the top anti-seismic device (5) comprises a top connecting seat (51) fixedly arranged on the bearing platform (3), and further comprises a top cover (52) fixed on the top connecting seat (51), the top cover (52) and the top connecting seat (51) form a cavity structure, the top cover (52) is penetrated through the upper end of the top pile body (21), the upper sliding seat (22) is arranged in a cavity formed by the top connecting seat (51) and the top cover (52), and anti-seismic mortar (8) is filled in the cavity formed by the top connecting seat (51) and the top cover (52).
3. An earthquake-resistant concrete pile foundation structure according to claim 2, characterized in that: go up connecting seat (41) with connecting seat (42) are the tubular structure of one end open-ended down, go up connecting seat (41) opening downwards, lower connecting seat (42) opening upwards, be provided with the clearance between the top of lower sliding seat (23) and last connecting seat (41), the clearance intussuseption is filled with antidetonation mortar (8), be provided with the clearance between lower sliding seat (23) and bottom sliding seat (12), the clearance intussuseption be filled with antidetonation mortar (8), be provided with the clearance between the bottom of bottom sliding seat (12) and lower connecting seat (42), the clearance intussuseption be filled with antidetonation mortar (8).
4. An earthquake-resistant concrete pile foundation structure according to claim 3, wherein: cushion cap (3) are the platelike structure that the level set up, and top connecting seat (51) are tubular structure and open-ended down, and the lower surface at cushion cap (3) is fixed in top connecting seat (51), and top cap (52) are open-ended tubular structure up, it is provided with the clearance to go up between the lower surface of sliding seat (22) and cushion cap (3), and the clearance intussuseption is filled with antidetonation mortar (8), go up and be provided with the clearance between the bottom of sliding seat (22) and top cap (52), the clearance intussuseption be filled with antidetonation mortar (8).
5. An earthquake-resistant concrete pile foundation structure according to any one of claims 1 to 4, wherein: the bottom anti-seismic device (4) further comprises an anti-seismic table (43) fixed on the lower connecting seat (42), the anti-seismic table (43) is of a disc-shaped structure, the bottom pile body (11) penetrates through the anti-seismic table (43), and a plurality of scattered-force piles (432) of rod-shaped structures are fixedly arranged on the anti-seismic table (43).
6. An earthquake-resistant concrete pile foundation structure according to claim 3 or 4, wherein: the edge of the opening of the upper connecting seat (41) is fixedly provided with an upper flange (412), the edge of the opening of the lower connecting seat (42) is fixedly provided with a lower flange (422), a plurality of positioning holes (6) are formed in the upper flange (412) and the lower flange (422), connecting bolts (61) are arranged in the positioning holes (6) in a penetrating mode, and connecting nuts (62) are connected to the connecting bolts (61) through threads.
7. An earthquake-resistant concrete pile foundation structure according to claim 4, wherein: the fixed top flange (511) that is provided with in top connecting seat (51) open-ended edge, top cap (52) open-ended edge is fixed to be provided with and covers flange (522), has all seted up a plurality of mounting holes (7) on top flange (511) and cover flange (522), wears to be equipped with in mounting hole (7) locking bolt (71), and threaded connection has lock nut (72) on locking bolt (71).
8. An earthquake-resistant concrete pile foundation structure according to any one of claims 2 to 4, wherein: the pile jacking device is characterized in that a buffering spring (9) is sleeved on the pile jacking body (21), the upper end of the buffering spring (9) abuts against the top cover (52), and the lower end of the buffering spring (9) abuts against the upper connecting seat (41).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022843150.2U CN214272110U (en) | 2020-11-30 | 2020-11-30 | Anti-seismic concrete pile foundation structure |
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| CN202022843150.2U CN214272110U (en) | 2020-11-30 | 2020-11-30 | Anti-seismic concrete pile foundation structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142460A (en) * | 2022-08-16 | 2022-10-04 | 福建众腾建设工程有限公司 | Anti-seismic building construction structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142460A (en) * | 2022-08-16 | 2022-10-04 | 福建众腾建设工程有限公司 | Anti-seismic building construction structure |
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