CN213741076U

CN213741076U - Unsettled pier shaft reinforcing bar fixing device of well digging basis

Info

Publication number: CN213741076U
Application number: CN202021916978.XU
Authority: CN
Inventors: 李鑫; 张康银; 左君; 孔德勋; 张羽; 李少聚; 鲁文军; 刘铸庆
Original assignee: China State Railway Investment Construction Group Co Ltd
Current assignee: China State Railway Investment Construction Group Co Ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-07-20
Anticipated expiration: 2030-09-04

Abstract

The utility model discloses a fixing device for the steel bars of a suspended pier body of a well digging foundation, which comprises a steel bar truss, a bearing framework, a beam, a sliding device and a limiting device; pier body steel bars are arranged on the steel bar truss, and the steel bar truss and the bearing framework are connected into a whole to form a fixed mould; the fixed mould is arranged on the cross beam; the sliding devices are multiple and are respectively and oppositely arranged on the top surface of the well digging foundation retaining wall; two ends of the beam are connected with the sliding device. The utility model has the advantages that: utilize pier shaft reinforcing bar fixing device of assembled to realize the installation of hanging in midair of pier shaft reinforcing bar, and pier shaft reinforcing bar realizes the fine setting for the position accessible slider on digging the well foundation, and fixed mould can tentatively fix a position when hoist and mount, realizes effective fixed and the location of pier shaft reinforcing bar, need not to set up and demolish the support in digging the well foundation, has improved efficiency of construction and construction quality to have good benefit in time limit for a project and cost.

Description

Unsettled pier shaft reinforcing bar fixing device of well digging basis

Technical Field

The utility model relates to a construction technical field specifically indicates a unsettled pier shaft reinforcing bar fixing device of well digging basis.

Background

The railway is an important infrastructure of China, a main artery of national economy and a popular vehicle, is a backbone of a comprehensive transportation system, and plays an important role in promoting the economic society of China to develop well and quickly.

The bridge is used as a common structure in railway engineering, the well digging foundation is a common foundation form, but the well digging foundation is plain concrete, steel bars (namely pier body steel bars) need to be embedded in the foundation during pier body construction, and the steel bars are in a suspended state. If adopt to set up the support and fix the reinforcing bar, because the location is inaccurate on the one hand, can cause the influence to the construction of later stage pier shaft, on the other hand the setting up of support and demolish can cause the influence to the construction of digging a well basis. Therefore, there is a need for a device for effectively fixing and positioning the pier shaft reinforcing steel bars when the pier shaft reinforcing steel bars are embedded in the well excavation foundation, so as to improve the construction efficiency and quality and reduce the construction cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the problems of inaccurate positioning, complex construction and low construction efficiency of the existing embedded pier body reinforcing steel bar of the well digging foundation caused by the suspended state of the reinforcing steel bar, and provides a fixing device for the suspended pier body reinforcing steel bar of the well digging foundation, which comprises a reinforcing steel bar truss, a bearing framework, a cross beam, a sliding device and a limiting device; pier body steel bars are arranged on the steel bar truss, and the steel bar truss and the bearing framework are connected into a whole to form a fixed mould; the fixed mould is arranged on the cross beam; the sliding devices are multiple and are respectively and oppositely arranged on the top surface of the well digging foundation retaining wall; the two ends of the cross beam are connected with the sliding device; the limiting device is matched with the sliding device and used for limiting the movement of the sliding device.

Furthermore, the steel bar truss is horizontally arranged in an elliptical shape, and the long axis end point and the short axis end point are respectively provided with a positioning angle steel in space.

Further, the bearing framework comprises a main beam, a secondary beam and a connecting beam which are connected into a whole; the main beam and the connecting beam are arranged in parallel to the long axis direction of the steel bar truss, and the secondary beam is perpendicular to the main beam and connected with the main beam to form a rectangular frame body; the connecting beam is arranged outside the rectangular frame body and is erected at the upper end of the cross beam.

Furthermore, the bearing framework also comprises a plurality of stabilizing beams and a plurality of supporting beams which are arranged in the rectangular framework body; the two ends of the stabilizing beam are connected with the main beam, the supporting beams are arranged at four corners of the rectangular frame body, and the two ends of the supporting beams are respectively connected with the main beam and the secondary beam.

Furthermore, the upper end of the cross beam is also provided with a positioning groove matched with the connecting beam.

Further, the sliding device comprises a sliding rail, a transverse wheel, a first connecting frame, a second connecting frame and a longitudinal wheel; the sliding rail is horizontally arranged on the top surface of the excavation foundation retaining wall and is vertical to the cross beam; the transverse wheels are horizontally arranged at least two along the length direction of the slide rail, and the transverse wheels are matched with the slide rail; the transverse wheel is connected with the second connecting frame through a first connecting frame; the second connecting frame is horizontally arranged, and the longitudinal wheel is horizontally arranged on the second connecting frame; the crossbeam is arranged at the upper end of the longitudinal wheel.

Further, the limiting device comprises a plurality of wedge-shaped blocks; the wedge-shaped blocks are respectively and movably arranged between the slide rail and the transverse wheel and between the transverse wheel and the longitudinal wheel.

The utility model has the advantages that: utilize pier shaft reinforcing bar fixing device of assembled to realize the installation of hanging in midair of pier shaft reinforcing bar, and pier shaft reinforcing bar realizes the fine setting for the position accessible slider on digging the well foundation, and fixed mould can tentatively fix a position when hoist and mount, realizes effective fixed and the location of pier shaft reinforcing bar, need not to set up and demolish the support in digging the well foundation, has improved efficiency of construction and construction quality to have good benefit in time limit for a project and cost.

Drawings

Fig. 1 is the utility model discloses overlook the schematic structure after the unsettled pier shaft reinforcing bar fixing device installation of well digging basis.

Fig. 2 is an enlarged structural view of the steel bar truss of fig. 1.

Fig. 3 is a schematic perspective view of fig. 2.

Figure 4 is an enlarged schematic view of the load-bearing frame of figure 1.

Fig. 5 is a front view showing an enlarged structure of the sliding apparatus of fig. 1.

Fig. 6 is a left side view of the structure of fig. 5.

Fig. 7 is a schematic perspective view of the limiting device in fig. 1.

In the figure, 100, the top surface of the well digging foundation retaining wall; 200. a steel bar truss; 201. positioning angle steel; 202. pier body reinforcing steel bars; 300. a load-bearing framework; 301. a main beam; 302. a secondary beam; 303. stabilizing the beam; 304. a support beam; 305. a connecting beam; 400. a cross beam; 401. positioning a groove; 500. a sliding device; 501. a slide rail; 502. a transverse wheel; 503. a first connecting frame; 504. a second link frame; 505. a longitudinal wheel; 600. a limiting device.

Detailed Description

The invention is described in further detail below with reference to the figures and the specific embodiments.

The device for fixing the steel bars of the suspended pier body of the well digging foundation comprises a steel bar truss 200, a bearing framework 300, a cross beam 400, a sliding device 500 and a limiting device 600, wherein the steel bar truss is fixed on the bearing framework; pier body steel bars 202 are arranged on the steel bar truss 200, and the steel bar truss 200 and the bearing framework 300 are connected into a whole to form a fixing mould; the fixed mould is arranged on the cross beam 400; a plurality of sliding devices 500 are respectively and oppositely arranged on the top surface 100 of the well foundation retaining wall; both ends of the cross beam 400 are connected with the sliding device 500; stop 600 cooperates with slide 500 to limit the movement of slide 500.

The steel bar truss 200 in this embodiment is horizontally disposed in an elliptical shape, and the long axis end point and the short axis end point are respectively provided with a positioning angle steel 201. The pier body steel bars can be tied and installed on the steel bar truss 200 on site, and after the well foundation is poured, the tied positions are untied, so that the fixed clamping fixture is detached. The positioning angle steel 201 is used for positioning when the fixed clamping fixture is placed, for example, when the fixed clamping fixture is placed on the well digging foundation in a hoisting mode, the four positioning angle steel 201 are aligned with the centers of four corresponding surfaces of the well digging foundation respectively, and therefore the fixed clamping fixture is located at the center of the well digging foundation. And then the sliding device 500 is used for realizing the fine adjustment of the fixed mould, and finally the fixed mould is fixed by the limiting device 600.

The load-bearing framework 300 of the embodiment comprises a main beam 301, a secondary beam 302, a connecting beam 305, a stabilizing beam 303 and a supporting beam 304 which are connected into a whole; the main beam 301 and the connecting beam 305 are arranged in parallel to the long axis direction of the steel bar truss 200, and the secondary beam 302 is perpendicular to the main beam 301 and connected with the main beam 301 to form a rectangular frame body; the connection beam 305 is provided outside the rectangular frame body and is bridged on the upper end of the cross beam 400. A plurality of stabilizing beams 303 and a plurality of supporting beams 304 are arranged in the rectangular frame body; two ends of the stabilizing beam 303 are connected with the main beam 301, the supporting beams 304 are arranged at four corners of the rectangular frame body, and two ends of the supporting beams are respectively connected with the main beam 301 and the secondary beam 302.

In order to realize the pre-positioning of the fixing clamping fixture, the upper end of the cross beam 400 is further provided with a positioning groove matched with the connecting beam 305. During hoisting, the connecting beam 305 of the fixed clamping fixture is aligned with the positioning groove.

The sliding device 500 comprises a sliding rail 501, a transverse wheel 502, a first connecting frame 503, a second connecting frame 504 and a longitudinal wheel 505; the slide rail 501 is horizontally arranged on the top surface 100 of the well digging foundation retaining wall and is vertical to the cross beam 400; at least two transverse wheels 502 are horizontally arranged along the length direction of the slide rail 501, and the transverse wheels 502 are matched with the slide rail 501; the transverse wheel 502 is connected with a second connecting frame 504 through a first connecting frame 503; the second connecting frame 504 is horizontally arranged, and a longitudinal wheel 505 is horizontally arranged on the second connecting frame; the beam 400 is provided at the upper end of the vertical wheel 505. Of course, the sliding device 500 may also be other similar structures as long as the transverse beam 400 can move transversely and longitudinally on a horizontal plane, and there are many similar existing structures, which are not examples.

The stop means 600 is preferably a plurality of wedge blocks; the wedge blocks are respectively and movably arranged between the slide rail 501 and the transverse wheel 502 and between the transverse wheel 502 and the longitudinal wheel 505. The wedge-shaped blocks are inserted between the sliding rail 501 and the transverse wheels 502 and between the transverse wheels 502 and the longitudinal wheels 505, so that the transverse wheels 502 and the longitudinal wheels 505 are locked and fixed.

In actual operation, each well digging foundation only needs one fixing device correspondingly, and under the same construction condition, compared with the original mode of erecting a support in the well digging foundation, the working efficiency is improved by at least 3 times. Because the support does not need to be erected any more, the turnover of the fixed clamping fixture, the cross beam 400, the sliding device 500 and the like can be completed by adopting a crane matched with a worker, the workload of erecting and dismantling the support is saved, the frequency of deep foundation pit operation is reduced, the manual work efficiency is improved, the construction progress is accelerated, and the safety risk is reduced. The method is also more advantageous in cost, 63.56t of support rentals can be saved for each well digging foundation, for example, 265 well digging foundations of a bridge are taken as an example, 16843.4t of required supports are needed, and the time for erecting the supports of each well digging foundation is at least 2 days; the fixing mould of the embodiment is only 1.2t generally, and the installation of each fixing device can be completed within 2 hours. Compare in the conventional art, the fixing device of this embodiment can reduce the time that pre-buried pier shaft reinforcing bar spent to make the pouring construction of excavation foundation consuming time shorter, to the whole construction of bridge, also more save time. Meanwhile, the safety problem caused by the change of materials can be greatly reduced, and certain benefits are provided for cost control.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that a person skilled in the art should also recognize that several modifications and decorations can be made without departing from the principle of the present invention, and the protection scope of the present invention is also covered.

Claims

1. The utility model provides a unsettled pier shaft reinforcing bar fixing device of well digging basis which characterized in that: the steel bar truss sliding device comprises a steel bar truss (200), a bearing framework (300), a cross beam (400), a sliding device (500) and a limiting device (600); pier body steel bars (202) are arranged on the steel bar truss (200), and the steel bar truss (200) and the bearing framework (300) are connected into a whole to form a fixing mould; the fixed mould is arranged on the cross beam (400); a plurality of sliding devices (500) are arranged on the top surface (100) of the well foundation retaining wall respectively and oppositely; the two ends of the cross beam (400) are connected with the sliding device (500); the limiting device (600) is matched with the sliding device (500) to limit the movement of the sliding device (500).

2. The device for fixing the steel bars of the suspended pier body of the well digging foundation according to claim 1, is characterized in that: the steel bar truss (200) is horizontally arranged in an elliptical shape, and the long axis end point and the short axis end point are respectively provided with a positioning angle steel (201) in space.

3. The device for fixing the steel bars of the suspended pier body of the well digging foundation according to claim 2, is characterized in that: the bearing framework (300) comprises a main beam (301), a secondary beam (302) and a connecting beam (305) which are connected into a whole; the main beam (301) and the connecting beam (305) are arranged in parallel to the long axis direction of the steel bar truss (200), and the secondary beam (302) is perpendicular to the main beam (301) and is connected with the main beam (301) to form a rectangular frame body; the connecting beam (305) is arranged outside the rectangular frame body and is erected at the upper end of the cross beam (400).

4. The device for fixing the steel bars of the suspended pier body of the well digging foundation according to claim 3, is characterized in that: the bearing framework (300) further comprises a plurality of stabilizing beams (303) and a plurality of supporting beams (304) which are arranged inside the rectangular framework body; the two ends of the stabilizing beam (303) are connected with the main beam (301), the supporting beams (304) are arranged at four corners of the rectangular frame body, and the two ends of the supporting beams are respectively connected with the main beam (301) and the secondary beam (302).

5. The device for fixing the steel bars of the suspended pier body of the well digging foundation according to claim 3, is characterized in that: the upper end of the cross beam (400) is also provided with a positioning groove (401) matched with the connecting beam (305).

6. The device for fixing the steel bars of the suspended pier body of the well digging foundation according to claim 1, is characterized in that: the sliding device (500) comprises a sliding rail (501), a transverse wheel (502), a first connecting frame (503), a second connecting frame (504) and a longitudinal wheel (505); the slide rail (501) is horizontally arranged on the top surface (100) of the well digging foundation retaining wall and is vertical to the cross beam (400); at least two transverse wheels (502) are horizontally arranged along the length direction of the sliding rail (501), and the transverse wheels (502) are matched with the sliding rail (501); the transverse wheel (502) is connected with the second connecting frame (504) through a first connecting frame (503); the second connecting frame (504) is horizontally arranged, and the vertical wheel (505) is horizontally arranged on the second connecting frame; the cross beam (400) is arranged at the upper end of the longitudinal wheel (505).

7. The device for fixing the steel bars of the suspended pier body of the well digging foundation according to claim 6, is characterized in that: the limiting device (600) comprises a plurality of wedge-shaped blocks; the wedge-shaped blocks are respectively and movably arranged between the sliding rail (501) and the transverse wheel (502) and between the transverse wheel (502) and the longitudinal wheel (505).