Connecting structure of square pile and cast-in-place side wall

Abstract

The utility model provides a connecting structure of a square pile and a cast-in-place side wall, a plurality of connectors are arranged on the square pile at intervals in the vertical direction, a plurality of embedded steel bars are arranged on the cast-in-place side wall in the transverse and longitudinal direction, and a plurality of cross point positions are constructed; the connecting structure comprises a plurality of first connecting ribs and a plurality of second connecting ribs, the first connecting ribs are arranged on the connectors in a one-to-one correspondence mode, and one ends of the first connecting ribs extend in the direction of the cast-in-place side wall and are in lap joint with the corresponding intersection points; and the second connecting ribs are separately connected to the first connecting ribs, each second connecting rib comprises a square pile connecting part and a side wall connecting part, the square pile connecting parts and the side wall connecting parts are connected to the square piles and the intersection points correspondingly, and the lengths of the square pile connecting parts and the side wall connecting parts can be independently adjusted. The technical problem that the material cost is increased due to the fact that the square pile and the side wall are unbalanced in stress and the thickness of the side wall is large is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of underground structure engineering, in particular to a connection structure between square piles and cast-in-place side walls. Background Art

[0002] With the development of cities, surface roads can no longer meet the needs of the growing vehicle traffic, and the only way to alleviate this problem is to build underground roads. Underground roads include expressways, rail transit and other transportation modes, and the construction methods include open-cut method, shield method and so on. Among them, the open-cut method is divided into cast-in-place method, on-site assembly of factory-prefabricated components, or a combination of the two methods. The foundation pit excavation support no longer uses traditional bored cast-in-place piles, but uses factory-prefabricated concrete square piles, which solves the problem of long waiting time for on-site drilling and pouring. At this stage, the connection between the prefabricated square piles and the cast-in-place side walls is unbalanced, and the two cannot bear the force together; usually, the thickness of the side wall is increased to improve its stability, which leads to increased material costs. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention provides a connection structure between square piles and cast-in-place side walls to solve the technical problems in the related art such as uneven force between the square piles and the side walls and increased material costs due to the thick side walls.

[0004] The utility model provides a connection structure between square piles and cast-in-situ side walls, wherein the square piles are provided with a plurality of connectors at intervals in the vertical direction, and the cast-in-situ side walls are provided with a plurality of pre-buried steel bars arranged in a horizontal and vertical arrangement and having a plurality of intersection points; the connection structure comprises:

[0005] A plurality of first connecting bars are provided in a one-to-one correspondence at the plurality of connectors, one end of each of the first connecting bars extends toward the cast-in-place side wall and overlaps the corresponding intersection;

[0006] Multiple second connecting ribs are detachably connected to the multiple first connecting ribs, and the second connecting ribs include a square pile connecting portion and a side wall connecting portion. The square pile connecting portion and the side wall connecting portion are respectively connected to the square piles and the intersection, and the lengths of the two can be adjusted independently.

[0007] Furthermore, the first connecting rib and / or the side wall connecting portion is formed with a hook for being hung at the corresponding intersection.

[0008] Furthermore, the square pile connecting portion is provided with a stopper for abutting against the square pile.

[0009] Furthermore, a connecting sleeve is provided between the square pile connecting portion and the side wall connecting portion, and both are threadedly extended into opposite ends of the connecting sleeve.

[0010] Furthermore, the connecting sleeve is provided with a plurality of connecting through holes.

[0011] Furthermore, the connecting sleeve is provided with at least one buckle group, the buckle group includes a first buckle and a second buckle that are movable relative to each other, and the first buckle and the second buckle are both formed with a slot for being clamped on the first connecting rib.

[0012] Furthermore, a sliding groove is provided on the surface of the connecting sleeve, and one of the first clip and the second clip is slidably arranged in the sliding groove.

[0013] Furthermore, a telescopic rod is provided along the length direction of the slide slot, and the telescopic rod connects the first buckle and the second buckle.

[0014] Compared with the prior art, the present invention has the following beneficial effects: a plurality of connectors are reserved for the square piles, and a plurality of intersection points are reserved for the cast-in-place side walls. The connectors are connected to the corresponding intersection points by using first connecting bars. The square piles and the cast-in-place side walls can be effectively connected by the plurality of first connecting bars, so as to achieve the purpose of common force of the structure and improve its stability. At the same time, the distance between the square piles and the cast-in-place side walls can be positioned and controlled by adjusting the length of the square pile connection part and / or the side wall connection part in the second connecting bar, thereby indirectly ensuring the casting thickness of the side wall. Moreover, the first connecting bar and the second connecting bar can jointly serve as the connection basis between the square piles and the cast-in-place side walls, so that the forces on the two are balanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a connection structure in one embodiment of the present utility model;

[0016] Figure 2 This is a schematic structural diagram of the first connecting rib and the second connecting rib in one embodiment of the present utility model;

[0017] Figure 3 for Figure 2 Exploded diagram;

[0018] Figure 4 Schematic diagram of the structure of a connecting sleeve in one embodiment of the present invention.

[0019] Description of Figure Numbers:

[0020] 1. Square pile; 2. Connector; 3. Embedded steel bar; 4. First connecting bar; 5. Second connecting bar; 501. Square pile connection part; 502. Side wall connection part; 503. Connecting sleeve; 6. Hook; 7. Block; 8. Connecting hole; 9. First clip; 10. Second clip; 11. Slot; 12. Slide; 13. Telescopic rod.

[0021] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and beneficial effects of the present invention more clearly understood, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] In the embodiment of the present utility model, Figure 1-Figure 3 As shown, the connection structure between the square pile and the cast-in-place side wall includes: a plurality of first connecting bars 4 and a plurality of second connecting bars 5; the plurality of first connecting bars 4 are arranged one by one in the plurality of connectors 2, one end of the first connecting bar 4 extends toward the direction of the cast-in-place side wall and overlaps the corresponding intersection; the plurality of second connecting bars 5 are detachably connected to the plurality of first connecting bars 4, the second connecting bars 5 include a square pile connecting portion 501 and a side wall connecting portion 502, the square pile connecting portion 501 and the side wall connecting portion 502 are respectively connected to the square pile 1 and the intersection, and the lengths of the two can be adjusted independently.

[0024] Specifically, in the embodiment of the present utility model, the square pile 1 is provided with a plurality of connectors 2 at intervals along the vertical direction. The connectors 2 are used to be reserved in the square pile 1, and their ends protrude outward from the square pile 1 or are flush with the side of the square pile 1; a steel cage is reserved in the cast-in-place side wall, and the steel cage includes a plurality of steel meshes arranged at intervals, and U-shaped steel bars are used to connect two adjacent steel meshes to improve the structural strength of the two; each steel mesh includes a plurality of embedded steel bars 3 arranged in a horizontal and vertical staggered manner, so that a plurality of embedded steel bars 3 can be constructed into a plurality of intersections. Of course, the number of the above-mentioned square piles 1, connectors 2, embedded steel bars 3 and intersections can be reasonably adjusted according to the actual construction, and there is no restriction here. On the other hand, in order to be able to show the structural characteristics of the above-mentioned steel cage, Figure 1 The cast-in-place concrete part of the cast-in-place side wall is omitted, and only the steel cage part is retained.

[0025] In the embodiment of the present invention, each connector 2 corresponds to each intersection position, and the first connecting rib 4 is used to connect them, so that one end of the first connecting rib 4 can be screwed into the connector 2, and the other end can be overlapped and fixed at the corresponding intersection position; through the cooperation of multiple first connecting ribs 4, the square pile 1 and the side wall are effectively connected, so that the forces on the two are balanced, thereby improving their stability.

[0026] In an embodiment of the present invention, in order to control the spacing between the square pile 1 and the side wall and improve the connection stability of the first connecting rib 4, a plurality of second connecting ribs 5 are further provided between the square pile 1 and the side wall. The plurality of first connecting ribs 4 and the plurality of second connecting ribs 5 are provided in one-to-one correspondence, and the two are connected in a detachable manner to facilitate installation in batches; at the same time, the first connecting rib 4 and the second connecting rib 5 are parallel and spaced apart, that is, the two ends are located at the square pile 1 and the side wall respectively, and each connection point is connected by two connecting ribs, which further improves the connection stability between the two. In addition, the second connecting rib 5 includes a square pile connecting portion 501 and a side wall connecting portion 502, which are independent of each other and can adjust their lengths independently. In this way, the length of the square pile connecting portion 501 and / or the side wall connecting portion 502 can be adjusted according to the distance between the square pile 1 and the side wall to change the overall length of the second connecting rib 5, so that its two ends can be connected to the square pile 1 and the side wall respectively, thereby controlling the distance between the square pile 1 and the side wall. Finally, after being connected to the first connecting rib 4, the stability of the template formed by multiple first connecting ribs 4 can be improved, thereby playing a role in fixing the template. Not only can it play a role in controlling the thickness of the side wall to save material costs, but it also facilitates tying the first connecting rib 4 at the corresponding intersection.

[0027] The utility model effectively connects the square pile 1 and the side wall through the cooperation of the first connecting rib 4 and the second connecting rib 5, so that the force of the structure is balanced and its stability is improved. At the same time, the adjustable second connecting rib 5 is used to control the distance between the square pile 1 and the side wall, thereby being able to control the thickness of the side wall and saving material costs.

[0028] like Figure 2 、 Figure 3 As shown, in one embodiment, the first connecting bar 4 and / or the side wall connecting portion 502 are formed with a hook 6 for hanging at the corresponding intersection. Specifically, to further secure the connecting bar at the intersection, this embodiment forms a hook 6 integrally at the end of the connecting bar. This hook 6 can be hung at the intersection, thereby improving the connection strength between the connecting bar and the embedded steel bar 3. In this embodiment, the side wall connecting portion 502 of the first connecting bar 4 and the second connecting bar 5 are both provided with a hook 6, giving them an L-shaped cross-section.

[0029] like Figure 1-Figure 3 As shown, in one embodiment, the square pile connection portion 501 is provided with a stopper 7 for abutting the square pile 1. Specifically, to increase the direct contact area between the square pile connection portion 501 and the square pile 1, this embodiment integrally forms a stopper 7 at the end of the square pile connection portion 501. The stopper 7 extends radially along the square pile connection portion 501 and is capable of abutting the square pile connection portion 501 after the second connecting rib 5 is installed.

[0030] like Figure 2 、 Figure 3 As shown, in one embodiment, a connecting sleeve 503 is provided between the square pile connection portion 501 and the side wall connection portion 502, and both are threaded into opposite ends of the connecting sleeve 503. Specifically, to achieve independent adjustment of the square pile connection portion 501 and the side wall connection portion 502, this embodiment provides a connecting sleeve 503 between them. This connecting sleeve 503 has a hollow structure, and the threads of the square pile connection portion 501 and the side wall connection portion 502 are screwed into the opposite end surfaces of the connecting sleeve 503. By screwing the corresponding connection portion in or out, the respective lengths can be adjusted, thereby adjusting the length of the second connecting rib 5. Furthermore, the threaded connection allows the corresponding connection portion to remain in the current adjustment position, preventing the possibility of backsliding.

[0031] like Figure 4 As shown, in one embodiment, the connecting sleeve 503 is provided with a plurality of connecting holes 8 for inserting transverse reinforcement bars, thereby facilitating the connection between two adjacent connecting sleeves 503 and / or adjacent connecting sleeves 503 and the first connecting bar 4. The transverse reinforcement bars are secured by tying. Of course, the connecting holes 8 can also be used to insert vertical reinforcement bars, or the vertical reinforcement bars can be tied to the transverse reinforcement bars to improve the structural stability of the connecting bars.

[0032] like Figure 4 As shown, in one embodiment, the connecting sleeve 503 is provided with at least one set of snaps, including a first snap 9 and a second snap 10 that are movable relative to each other. Both the first snap 9 and the second snap 10 are formed with a slot 11 for snapping onto the first connecting rib 4. Specifically, to facilitate the detachable connection of the second connecting rib 5 to the first connecting rib 4, this embodiment provides for the first and second snaps 9 and 10 to be spaced apart on the surface of the connecting sleeve 503. One of the first and second snaps 9 and 10 can slide relative to the other, allowing the spacing between them to be adjusted so that both snap onto corresponding portions of the first connecting rib 4. The adjusted position of the two snaps balances the forces acting on the connecting sleeve 503 and prevents the second connecting rib 5 from tilting. Of course, the snaps are provided with a slot 11 for snapping onto the surface of the first connecting rib 4. Preferably, the connecting sleeve 503 is provided with a slide groove 12, into which one of the first and second snaps 9 and 10 slides. The sliding groove 12 is arranged along the moving direction of the connecting portion, that is, the sliding groove 12 is arranged along the axial direction of the connecting sleeve 503 .

[0033] Furthermore, if Figure 4As shown, in one embodiment, a telescopic rod 13 is provided along the length of the slide 12, and the telescopic rod 13 connects the first buckle 9 and the second buckle 10. Specifically, in order to control the spacing between the two buckles so that they remain at the adjusted position, this embodiment connects the two buckles via the telescopic rod 13, so that the relative movement of the two buckles can be controlled by the extension and contraction of the telescopic rod 13. In this embodiment, the telescopic rod 13 includes a fixed portion and a telescopic portion that are threaded together. The first buckle 9 is defined as being fixed to the connecting sleeve 503, and the second buckle 10 is defined as being slidable on the connecting sleeve 503, so that the fixed portion is fixed to the first buckle 9 and the telescopic portion is rotatably provided at the second buckle 10; thus, the forward and reverse rotation of the telescopic portion can change the overall length of the telescopic rod 13, thereby pushing or pulling the second buckle 10 to slide on the connecting sleeve 503.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A connection structure between square piles and cast-in-place side walls, wherein the square piles are provided with a plurality of connectors at intervals in the vertical direction, and the cast-in-place side walls are provided with a plurality of pre-buried steel bars arranged in a horizontal and vertical manner and having a plurality of intersections; characterized in that: The connection structure includes: A plurality of first connecting bars are provided in a one-to-one correspondence at the plurality of connectors, one end of each of the first connecting bars extends toward the cast-in-place side wall and overlaps the corresponding intersection; Multiple second connecting ribs are detachably connected to the multiple first connecting ribs, and the second connecting ribs include a square pile connecting portion and a side wall connecting portion. The square pile connecting portion and the side wall connecting portion are respectively connected to the square piles and the intersection, and the lengths of the two can be adjusted independently.

2. The connection structure between the square pile and the cast-in-place side wall according to claim 1, characterized in that: The first connecting rib and / or the side wall connecting portion are formed with hooks for being hung at the corresponding intersections.

3. The connection structure between the square pile and the cast-in-place side wall according to claim 1, characterized in that: The square pile connecting portion is provided with a stopper for abutting against the square pile.

4. The connection structure between the square pile and the cast-in-place side wall according to any one of claims 1 to 3, characterized in that: A connecting sleeve is provided between the square pile connecting portion and the side wall connecting portion, and both are threadedly extended into opposite ends of the connecting sleeve.

5. The connection structure between the square pile and the cast-in-place side wall according to claim 4, characterized in that: The connecting sleeve is provided with a plurality of connecting through holes.

6. The connection structure between square piles and cast-in-place side walls according to claim 4, characterized in that: The connecting sleeve is provided with at least one buckle group, and the buckle group includes a first buckle and a second buckle that are movable relative to each other. The first buckle and the second buckle are both formed with a slot for being clamped on the first connecting rib.

7. The connection structure between square piles and cast-in-place side walls according to claim 6, characterized in that: A sliding groove is provided on the surface of the connecting sleeve, and one of the first clip and the second clip is slidably arranged in the sliding groove.

8. The connection structure between square piles and cast-in-place side walls according to claim 7, characterized in that: A telescopic rod is provided along the length direction of the slide slot, and the telescopic rod connects the first buckle and the second buckle.

Images