CN202865854U - Connection structure of precast reinforced concrete empty-web anti-lateral-force pile - Google Patents
Connection structure of precast reinforced concrete empty-web anti-lateral-force pile Download PDFInfo
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- CN202865854U CN202865854U CN 201220608407 CN201220608407U CN202865854U CN 202865854 U CN202865854 U CN 202865854U CN 201220608407 CN201220608407 CN 201220608407 CN 201220608407 U CN201220608407 U CN 201220608407U CN 202865854 U CN202865854 U CN 202865854U
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Abstract
The utility model discloses a connection structure of a precast reinforced concrete empty-web anti-lateral-force pile. The connection structure of the precast reinforced concrete empty-web anti-lateral-force pile comprises a pile body and thickened zones, wherein the cross section of the pile body is rectangular, the thickened zones are arranged at two ends of the rectangular cross section of the pile body in the long edge direction, and a plurality of arc-shaped embedded reinforcing steel bars are arranged on the thickened zones of the pile body in the short edge direction of the rectangular cross section of the pile body and along the pile body. When two pile bodies are connected, pile ends are aligned, and embedded reinforcing steel bars at two pile ends are connected through a connection piece. Due to the fact that the embedded reinforcing steel bars are arranged on the precast reinforced concrete empty-web anti-lateral-force pile and the connection piece are used for welding the embedded reinforcing steel bars, a fender pile is enabled to bear required bending moment and shearing force after being connected, and purposes of reducing construction processes and convenient connection are achieved. Meanwhile, due to the arrangement of embedded parts on the pile body on two sides of a belly of the pile body, resistance at a connection position is improved. Furthermore, by means of arrangement and matching of a concave end and a convex end respectively at two ends of the pile body, bending resistance and shear-bearing capacity of the connection position after the pile body is connected are strengthened.
Description
Technical field
The utility model relates to pile body link technique field in the Deep Foundation Pit Supporting Engineering, relates in particular to a kind ofly to be connected the on an empty stomach connection structure of lateral force resistance stake of prefabricated reinforced concrete with slope project for bracing of foundation pit.
Background technology
Going along with sb. to guard him in the engineering of each field excavation construction of civil engineering, cantilever campshed, campshed add support or campshed to add anchor pole be the common form of going along with sb. to guard him.Traditional and the most the most frequently used campshed way is bored pile at present, and there is constructs bothers, speed is slow, cost is high, need mud to transport outward the shortcomings such as contaminated environment.The advantages such as prefabricated reinforced concrete on an empty stomach lateral force resistance stake is the new technology of developing in recent years, and it has, and speed of application is fast, reliable in quality, cost are low are compared traditional bored pile, and its cost can save 30% to 40%.But, designing pile length dark for deep pit digging requires in the long situation, and the actual production pile length is owing to be subjected to lifting and the transport restrictions can not be long, surpass limited length can only be at building-site with the stake spreading to satisfy instructions for use.
Because prefabricated reinforced concrete on an empty stomach lateral force resistance stake is a brand-new technology, have the advantages such as lightweight, that cost is low with respect to other pile bodies, but because its internal construction is different from common pile body, existing pile extension technology might not be applicable to new technology, for the better on an empty stomach use of lateral force resistance stake of exploitation prefabricated reinforced concrete, how to solve the on an empty stomach connection of lateral force resistance stake of prefabricated reinforced concrete, for site operation provides a kind of convenience, joint reliable, that be connected firmly extremely important, be directly connected to application and the popularization of this new technology.
Summary of the invention
The utility model provide a kind of make simple, cost is low, on-the-spot location and the prefabricated reinforced concrete of the being connected connection structure of lateral force resistance stake on an empty stomach, solved pile splicing structure not firmly, problem not easily.
A kind of prefabricated reinforced concrete is the connection structure of lateral force resistance stake on an empty stomach, comprise that cross section is the pile body of rectangle and the thickened area at long side direction two, pile body square-section, described pile body thickened area is provided with several and arranges at pile body square-section short side direction, along the arc embedded bar of pile body layout; When two pile bodies connect, the alignment of stake end, the embedded bar at two stake end places connects by connector.
Described connector is bar reinforcement, and embedded bar surface, stake end place flushes with pile body surface; Described bar reinforcement and two end embedded bars are welded to connect.
Described connector is steel plate, and steel plate and embedded bar welding are embedded in an end place; When pile body connected, the steel plate at two the stake end places of aliging welded two block plates.
Described connector is the L-type steel plate, and L-type steel plate and embedded bar welding are embedded in an end place; When pile body connected, two stake end place L-type steel plates alignd, weld.
Quantity with upper connector is corresponding with embedded bar quantity, also can arrange as required, is conducive to reinforce the connection between the pile body.
Described pile body belly both sides pile body is provided with built-in fitting, and built-in fitting is welded with the anchor bar that gos deep into pile body, by welding two pile body both sides built-in fittings pile body is connected, and strengthens the shear strength and the side direction flexural strength that connect.
Described pile body on an empty stomach offset is solid concrete with a certain distance from the stake end, and namely the end at pile body two ends is solid, strengthens accordingly the local strength of pile body junction.
Described pile body two ends, an end is protruding, and the other end is recessed; The concavo-convex of two ends can agree with embedding mutually, reaches accordingly the requirement of connector shear strength.
Described pile body two ends are provided with to be run through the end solid area and distinguishes the directly intercommunicating pore that straightens that is connected with empty stomach; The described size of footpath intercommunicating pore that straightens is less than the size of distinguishing on an empty stomach.
Described pile body two ends are provided with the transverse reinforcement of overstriking encryption and the vertical reinforcement of arranging as required, and form cage of reinforcement with embedded bar.
The utility model by prefabricated reinforced concrete on an empty stomach the lateral force resistance stake embedded bar is set, use connector welding embedded bar, can bear the bending and shearing of designing requirement after fender post is connected, reached and simplified construction sequence, effect easy to connect; By at pile body belly both sides pile body built-in fitting being set, strengthened the resistance of junction simultaneously; Also by the concavo-convex end that mutually agrees with is set at the pile body two ends, strengthened the bending resistance shear resistance of junction self after pile body connects.
Description of drawings
Fig. 1 is the schematic diagram that bar reinforcement connects pile body among the utility model embodiment 1;
Fig. 2 is the sectional view along A-A among Fig. 1;
Fig. 3 is the sectional view along B-B among Fig. 1;
Fig. 4-the 6th, embodiment 1 light plate connects schematic diagram and the sectional view thereof of pile body;
Fig. 7-the 9th, the L-type steel plate connects schematic diagram and the sectional view thereof of pile body among the embodiment 1;
Figure 10-the 12nd, pile body increases connection diagram and the sectional view thereof of built-in fitting;
Figure 13-the 15th, solid connection diagram and the sectional view thereof of embodiment 2 king-pile end of body parts;
Figure 16-the 18th, connection diagram and the sectional view thereof of embodiment 3 king-pile end jogs.
The specific embodiment
A kind of prefabricated reinforced concrete is the connection structure of lateral force resistance stake on an empty stomach, comprise that cross section is the pile body 1 of rectangle and the thickened area 2 at long side direction two, pile body square-section, pile body thickened area 2 is provided with 3 in the arrangement of pile body square-section short side direction, along the arc embedded bar 3 of pile body layout.
When two pile bodies connect, the alignment of stake end, the embedded bar 3 at two stake end places connects by being welded to connect part.Such as Fig. 1-3, when connector was bar reinforcement 4, embedded bar 3 was positioned at an end at end place and exposes pile body 1 surface and flush with pile body surface.When pile body connects, reach the effect that pile body is connected by bar reinforcement with the embedded bar welding of two pile body ends.
Shown in Fig. 4-6, when connector was steel plate 5, steel plate and embedded bar welding were embedded in an end place; When pile body connected, alignment stake end reached the purpose that pile body connects by welding steel.
Shown in Fig. 7-9, connector is L-type steel plate 6, and L-type steel plate 6 is embedded in an end place with the embedded bar welding, and when pile body connected, the alignment of stake end connected two pile bodies by welding L-type steel plate.
Connector can also be other forms of end that are suitable for reinforcing the connection except above form, and the quantity of connector is identical with embedded bar.
The pile body two ends are provided with the transverse reinforcement of overstriking encryption and form cage of reinforcement with embedded bar.
Shown in Figure 10-12, pile body belly both sides pile body is embedded with built-in fitting 7, and built-in fitting 7 is welded with the anchor bar 8 that gos deep into pile body, and built-in fitting 7 is fixedly connected with pile body by anchor bar 8.Built-in fitting 7 is angle steel, also can be of value to for other shape of connection.Burying underground of anchor bar need to meet the mechanics requirement simultaneously, is generally arc.During the pile body alignment, directly weld pre-buried angle steel, also the steel junction plate local welding in angle steel and the pile body outside can be got up, two pile bodies are connected.
A kind of prefabricated reinforced concrete is the lateral force resistance stake on an empty stomach, on the basis of prefabricated reinforced concrete empty stomach lateral force resistance stake, pile body is distinguished on an empty stomach the through hole of 9 distance stake end certain distances and is filled with real with solid concrete in embodiment 1, makes the end at pile body two ends solid.When opposing water and soil lateral pressure, two pile body junctions are renitency better, and can not become weak link.
Shown in Figure 13-15, on the basis of above pile body, pile body 1 two ends can also be provided with run through the end solid area with distinguish on an empty stomach 9 is connected straighten directly intercommunicating pore 10; Straighten the size of footpath intercommunicating pore 10 less than the size of distinguishing on an empty stomach 9, but greater than the size of pile driver drilling rod.Distinguish on an empty stomach 9 with the junction that straightens footpath intercommunicating pore 10, distinguish on an empty stomach that 9 one end sizes diminish gradually until with straighten footpath intercommunicating pore 10 and be connected, improved the stress performance at an end place.
Be the reinforcing bar encrypted area about two stake ends of pile body 500mm scope, the gap ratio non-encrypted area of transverse reinforcement is little a lot, has improved stake end stress performance.
Shown in Figure 16-18, make pile body middle part, pile body two ends one end protruding on the basis of embodiment 2, an end is recessed; The concavo-convex of two ends can agree with embedding mutually, by the solid concrete of jog, improves stake end stress performance.In case of necessity, can also built-in fitting 7 be set in the junction of stake abdomen jog, built-in fitting 7 is welded with the anchor bar 8 that gos deep into pile body.
Be the reinforcing bar encrypted area about stake end 500mm scope, the gap ratio non-encrypted area of transverse reinforcement is little, vertically encrypts the solid area that reinforcing bar is arranged in the stake end on demand, and wherein transverse reinforcement, vertical reinforcement and embedded bar 3 form cage of reinforcement.Stake end bar encrypted area has improved the stress performance of stake end greatly.
During pile extension, the recessed end of a pile body and the nose of another pile body agree with embedding, can accelerate pile extension speed.
The cross section of prefabricated reinforced concrete empty stomach lateral force resistance stake is except rectangle, can also be the shapes such as T shape, I-shaped, H shape, when the pile body cross section was I-shaped, the edge of a wing, pile body two ends ditto was provided with for strengthening pile body bending resistance shear strength simultaneously for the embedded bar 3 that connects another pile body.
During above embodiment pile extension, two pile bodies are strictly aimed at, the embedded bar of pile body one end is close to mutually with another corresponding pile body embedded bar, the misalignment angle error is in 0.1 degree, by bar reinforcement, steel plate or L-type steel plate and embedded bar welding, two pile bodies are linked into an integrated entity, and the weld seam that forms after the welding reaches the effect that pile body connects of reinforcing in 10 millimeter.
Those skilled in the art are to be understood that; although being the mode according to a plurality of embodiment, the utility model is described; but be not that each embodiment only comprises an independently technical scheme; those skilled in the art should make manual as a wholely to be understood, and regard the technical scheme that relates among each embodiment as the mode that can be combined into mutually different embodiment understand protection domain of the present utility model.
Except above-mentioned embodiment, the present invention can also have similar other embodiment, and all employings are equal to replaces or technical scheme that equivalent transformation forms, all drops on the claimed scope of the present invention.
Claims (9)
1. the connection of prefabricated reinforced concrete empty stomach lateral force resistance stake is constructed, comprise that cross section is the pile body (1) of rectangle and the thickened area (2) at long side direction two, pile body square-section, it is characterized in that: described pile body thickened area (2) is provided with several and arranges at pile body square-section short side direction, along the arc embedded bar (3) of pile body layout; When two pile bodies connect, the alignment of stake end, the embedded bar (3) at two stake end places connects by connector.
2. the connection of prefabricated reinforced concrete empty stomach lateral force resistance according to claim 1 stake is constructed, and it is characterized in that: described connector is bar reinforcement (4), stake end place's embedded bar (3) surface and pile body (1) flush; Described bar reinforcement and two end embedded bars are welded to connect.
3. the connection of prefabricated reinforced concrete empty stomach lateral force resistance according to claim 1 stake is constructed, and it is characterized in that: described connector is steel plate (5), and steel plate and embedded bar welding are embedded in an end place; When pile body connects, welding stake end place steel plate.
4. the connection of prefabricated reinforced concrete empty stomach lateral force resistance according to claim 1 stake is constructed, and it is characterized in that: described connector is L-type steel plate (6), and L-type steel plate and embedded bar welding are embedded in an end place; When pile body connects, welding stake end place L-type steel plate.
5. the connection of prefabricated reinforced concrete empty stomach lateral force resistance according to claim 1 stake is constructed, and it is characterized in that: described pile body belly both sides pile body is provided with built-in fitting (7), and built-in fitting (7) is welded with the anchor bar (8) that gos deep into pile body.
6. the connection of prefabricated reinforced concrete empty stomach lateral force resistance according to claim 1 stake is constructed, and it is characterized in that: it is solid concrete that described pile body is distinguished (9) distance stake end certain distance on an empty stomach, and namely the end at pile body two ends is solid.
7. the connection of prefabricated reinforced concrete empty stomach lateral force resistance according to claim 6 stake is constructed, and it is characterized in that: described pile body two ends, and an end is protruding, and the other end is recessed; The concavo-convex of two ends can agree with embedding mutually.
8. it is characterized in that according to claim 6 or the 7 described prefabricated reinforced concretes connection structure of lateral force resistance stakes on an empty stomach: described pile body (1) two ends be provided with runs through the end solid area and is connected with district on an empty stomach straighten directly intercommunicating pore (10); The described size of footpath intercommunicating pore (10) that straightens is less than the size of distinguishing on an empty stomach (9).
9. the connection of prefabricated reinforced concrete empty stomach lateral force resistance according to claim 1 stake is constructed, it is characterized in that: described pile body (1) two ends are provided with the transverse reinforcement of overstriking encryption and the vertical reinforcement of arranging as required, and form cage of reinforcement with embedded bar (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220608407 CN202865854U (en) | 2012-11-12 | 2012-11-12 | Connection structure of precast reinforced concrete empty-web anti-lateral-force pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220608407 CN202865854U (en) | 2012-11-12 | 2012-11-12 | Connection structure of precast reinforced concrete empty-web anti-lateral-force pile |
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| Publication Number | Publication Date |
|---|---|
| CN202865854U true CN202865854U (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220608407 Expired - Lifetime CN202865854U (en) | 2012-11-12 | 2012-11-12 | Connection structure of precast reinforced concrete empty-web anti-lateral-force pile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397631A (en) * | 2013-07-31 | 2013-11-20 | 俞晓东 | Pile splicing device of H-type piles and machining method |
| CN104612165A (en) * | 2015-02-06 | 2015-05-13 | 上海城地建设股份有限公司 | Non-fusion welded multi-section connected prefabricate reinforced concrete component assembly enclosure system and construction method thereof |
-
2012
- 2012-11-12 CN CN 201220608407 patent/CN202865854U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397631A (en) * | 2013-07-31 | 2013-11-20 | 俞晓东 | Pile splicing device of H-type piles and machining method |
| CN103397631B (en) * | 2013-07-31 | 2015-07-29 | 俞晓东 | H type stake pile extension device and processing method |
| CN104612165A (en) * | 2015-02-06 | 2015-05-13 | 上海城地建设股份有限公司 | Non-fusion welded multi-section connected prefabricate reinforced concrete component assembly enclosure system and construction method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |