CN202865853U - Connecting structure of hollow lateral force resistance pile of prefabricated reinforced concrete - Google Patents
Connecting structure of hollow lateral force resistance pile of prefabricated reinforced concrete Download PDFInfo
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- CN202865853U CN202865853U CN 201220580327 CN201220580327U CN202865853U CN 202865853 U CN202865853 U CN 202865853U CN 201220580327 CN201220580327 CN 201220580327 CN 201220580327 U CN201220580327 U CN 201220580327U CN 202865853 U CN202865853 U CN 202865853U
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- pile body
- pile
- lateral force
- prefabricated reinforced
- empty stomach
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Abstract
The utility model discloses a connecting structure of a hollow lateral force resistance pile of a prefabricated reinforced concrete. The connecting structure of the hollow lateral force resistance pile of the prefabricated reinforced concrete comprises a pile body which is provided with a rectangular cross section, and thickening areas arranged at two ends of long sides direction of the rectangular cross section, an end plate for connecting the other pile is arranged on the outer side of each thickening area of each long side of the rectangular cross section, reinforcing steel bar anchoring holes which correspond to prestress main reinforcements arranged in the thickening areas of the pile body are arranged on an end plate body, and the number of the prestress main reinforcements and the number of the reinforcing steel bar anchoring holes are same. Due to the fact that the end plate is arranged on the hollow lateral force resistance pile of the prefabricated reinforced concrete, fender posts are enabled to bear bending moment and shearing force as designed after being connected, effects that construction procedure is simplified and convenient to connect are achieved. Meanwhile, due to the fact that embedded parts are arranged at two hollow sides of the pile body, resistance at joints is strengthened. In addition, due to the fact that concave-convex ends are arranged at two ends of the pile body, bending resistance capacity and shear-bearing capacity of the joints are strengthened after pile bodies are connected.
Description
Technical field
The utility model relates to pile body link technique field in the Deep Foundation Pit Supporting Engineering, relates in particular to the on an empty stomach syndeton of lateral force resistance stake of a kind of prefabricated reinforced concrete for bracing of foundation pit and slope project.
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 being 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 easy to connect syndeton 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 syndeton 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, the outside of long side direction two, described pile body square-section thickened area is equipped with for the end plate that connects another pile body; Described end plate plate body be provided with the pile body thickened area in the Bar Anchorage hole that prestressing force master muscle matches and quantity is consistent that configures.
Can be connected with the built-in fitting dowel that several stretch into pile body and plate body and pile body are linked into an integrated entity according to force-bearing situation on the described end plate plate body.
Described end plate plate body is provided with the stretch-draw fixed bolt hole, and the stretch-draw fixed bolt hole is used for connecting tensioner.Before in mould, building concrete, carry out stretch-draw by this peer end of the connection plate, apply prestressing force for main muscle.
Described end plate is the plate body of steel, by welding two plate bodys on the pile body two pile bodies is linked into an integrated entity.
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.
The vertical reinforcement that described pile body two ends are provided with the transverse reinforcement of encryption and arrange as required.
The utility model by prefabricated reinforced concrete on an empty stomach the lateral force resistance stake end plate is set, 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 connection diagram of two pile bodies among the utility model embodiment 1;
Fig. 2 is the sectional view along A-A among Fig. 1;
Fig. 3 is the pile body connection diagram that increases the built-in fitting dowel among Fig. 1;
Fig. 4 is the sectional view along B-B among Fig. 3;
Fig. 5 be among Fig. 3 C to the end plate schematic diagram;
Fig. 6 is pile body end plate junction enlarged diagram among Fig. 3;
Fig. 7 is the pile body connection diagram that increases pile body belly built-in fitting among Fig. 3;
Fig. 8 is along the sectional view shown in the D-D among Fig. 7;
Fig. 9 is the connection diagram of two pile bodies among the utility model embodiment 2;
Figure 10 is the sectional view along E-E among Fig. 9;
Figure 11 is the connection diagram of two pile bodies among the utility model embodiment 3;
Figure 12 is the sectional view along F-F among Figure 11.
The specific embodiment
Shown in Fig. 1-2, a kind of prefabricated reinforced concrete is the syndeton 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, the outside of long side direction two, pile body square-section thickened area 2 is equipped with for the end plate 3 that connects another pile body.
Bar Anchorage hole 5 is the Pear-Shaped through hole, the prestressing force master muscle 4 of being convenient to an end band reinforcing bar end upset from pile body laterally direction pass macropore, then snap in the aperture, simultaneously reinforcing bar end upset is larger than the aperture of aperture, has guaranteed firm connection the between prestressing force master muscle 4 and the end plate 3.
Shown in Fig. 3-6, be welded with simultaneously several on the interior plate face of end plate 3 and stretch into pile body and with the built-in fitting dowel 6 that plate body and pile body link into an integrated entity, further strengthened the degree of being connected firmly between end plate and the pile body.
Shown in Fig. 7-8, pile body belly both sides pile body is embedded with built-in fitting 8, and built-in fitting 8 is welded with the anchor bar 9 that gos deep into pile body, and built-in fitting is fixedly connected with pile body by anchor bar.Built-in fitting 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, and on the basis of prefabricated reinforced concrete empty stomach lateral force resistance stake, offset is real with the solid concrete filling with a certain distance from the through hole of stake end on an empty stomach with pile body, makes the end at pile body two ends solid in embodiment 1.When opposing water and soil lateral pressure, two pile body junctions are renitency better, and can not become weak link.
Shown in Fig. 9-10, 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.
Wherein according to the difference of the soil body, the method for pitching pile also can be different, need to adopt as the case may be only method.If the soil body is softer, the duration is tighter, can adopt the loosening soil of stake end directly to plant piling method, adopt this method need to use pile body with matching.Shown in Fig. 9-10, on the basis of above pile body, pile body 1 two ends be provided with run through the end solid area with distinguish on an empty stomach 10 is connected straighten directly intercommunicating pore 11; Straighten the size of footpath intercommunicating pore 11 less than the size of distinguishing on an empty stomach 10, but greater than the size of pile driver drilling rod.On an empty stomach district and the junction that straightens the footpath intercommunicating pore, distinguish on an empty stomach that an end size diminishes gradually until with straighten the footpath intercommunicating pore and be connected, improved the stress performance at an end place.
Shown in Figure 11-12, 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 8 be set in the junction of stake abdomen jog, built-in fitting is welded with the anchor bar 9 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, and vertically encrypting reinforcing bar, to be arranged on demand that stake holds be solid area.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 prefabricated reinforced concrete on an empty stomach cross section of lateral force resistance stake can also for shapes such as T shape, I-shaped, H shapes, when the pile body cross section is I-shaped, ditto be provided with for the end plate 3 that connects another pile body in the outside, the edge of a wing, pile body two ends except rectangle.
During above embodiment pile extension, two pile bodies are strictly aimed at, and the end plate of pile body one end is close to mutually with another corresponding pile body end plate, and the misalignment angle error is in 0.1 degree, by welding two pile bodies are linked into an integrated entity, the weld seam that forms after the welding is in 10 millimeter.In the pile body outside, the angle steel welding by on steel junction plate and two pile bodies reaches the effect of reinforcing the pile body connection.
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 prefabricated reinforced concrete syndeton 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, is characterized in that: the outside of described pile body square-section long side direction two thickened area (2) is equipped with for the end plate (3) that connects another pile body; Described end plate (3) plate body is provided with the Bar Anchorage hole (5) that prestressing force master muscle (4) matches and quantity is consistent with the middle configuration of pile body thickened area (2).
2. the prefabricated reinforced concrete according to claim 1 syndeton of lateral force resistance stake on an empty stomach is characterized in that: be connected with the built-in fitting dowel (6) that several stretch into pile body and plate body and pile body are linked into an integrated entity according to force-bearing situation on described end plate (3) plate body.
3. the prefabricated reinforced concrete according to claim 1 syndeton of lateral force resistance stake on an empty stomach, it is characterized in that: described end plate (3) plate body is provided with stretch-draw fixed bolt hole (7).
4. the prefabricated reinforced concrete according to claim 1 syndeton of lateral force resistance stake on an empty stomach, it is characterized in that: described end plate (3) is the plate body of steel, by welding two plate bodys on the pile body two pile bodies is linked into an integrated entity.
5. the prefabricated reinforced concrete according to claim 1 syndeton of lateral force resistance stake on an empty stomach, it is characterized in that: described pile body belly both sides pile body is provided with built-in fitting (8), and built-in fitting is welded with the anchor bar (9) that gos deep into pile body.
6. the prefabricated reinforced concrete according to claim 1 syndeton of lateral force resistance stake on an empty stomach, it is characterized in that: it is solid concrete that described pile body is distinguished (10) distance stake end certain distance on an empty stomach, and namely the end at pile body two ends is solid.
7. the prefabricated reinforced concrete according to claim 6 syndeton of lateral force resistance stake on an empty stomach 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 syndeton 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 (11); The described size of footpath intercommunicating pore (11) that straightens is less than the size of distinguishing on an empty stomach (10).
9. it is characterized in that: the vertical reinforcement that described pile body (1) two ends are provided with the transverse reinforcement of encryption and arrange as required according to claim 6 or the 7 described prefabricated reinforced concretes syndeton of lateral force resistance stakes on an empty stomach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220580327 CN202865853U (en) | 2012-11-05 | 2012-11-05 | Connecting structure of hollow lateral force resistance pile of prefabricated reinforced concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220580327 CN202865853U (en) | 2012-11-05 | 2012-11-05 | Connecting structure of hollow lateral force resistance pile of prefabricated reinforced concrete |
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| CN202865853U true CN202865853U (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220580327 Expired - Lifetime CN202865853U (en) | 2012-11-05 | 2012-11-05 | Connecting structure of hollow lateral force resistance pile of prefabricated reinforced concrete |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306265A (en) * | 2013-07-05 | 2013-09-18 | 徐工集团工程机械股份有限公司 | Anti-shear combined rammer |
| 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
- 2012-11-05 CN CN 201220580327 patent/CN202865853U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306265A (en) * | 2013-07-05 | 2013-09-18 | 徐工集团工程机械股份有限公司 | Anti-shear combined rammer |
| CN103306265B (en) * | 2013-07-05 | 2015-05-27 | 徐工集团工程机械股份有限公司 | Anti-shear combined rammer |
| 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 |
Granted publication date: 20130410 |
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| CX01 | Expiry of patent term |