Bridge pier stud bent cap reinforcement cage hoisting device

Abstract

The utility model discloses an improved bridge pier stud cover beam reinforcement cage hoisting device, which comprises a cross beam system, which comprises a plurality of cross beams which are arranged above a bridge pier stud cover beam reinforcement cage, are arranged at intervals along the length direction of the bridge pier stud cover beam reinforcement cage, and extend along the width direction of the bridge pier stud cover beam reinforcement cage; the longitudinal beam system comprises longitudinal beams which are arranged above the transverse beam system, connected with the transverse beams into a whole and extend in the length direction of the bridge pier stud bent cap reinforcement cage, and lifting lugs are distributed on the longitudinal beams; the mooring rope system comprises a plurality of transverse mooring ropes which are respectively arranged below the corresponding cross beams, one ends of the transverse mooring ropes are connected with one ends of the corresponding cross beams, the other ends of the transverse mooring ropes are connected with the other ends of the corresponding cross beams after bypassing the bottom of the bridge pier stud bent cap reinforcement cage, and the transverse mooring ropes form a hanging net surrounding the bridge pier stud bent cap reinforcement cage.

Description

Technical Field

[0001] The utility model relates to a lifting device for a steel bar cage of a bridge pier cap beam. Background Art

[0002] Bridge construction mainly adopts cast-in-place concrete construction. Cast-in-place concrete bridge piers have the characteristics of strong integrity and flexible spatial modeling, but they also have disadvantages such as long construction period, serious environmental pollution and high cost. Therefore, many projects have begun to gradually adopt prefabricated bridges. The piers and cap beams of prefabricated bridges are prefabricated in the factory and transported to the site for assembly. However, due to the heavy weight of the prefabricated cap beam, the requirements for cranes and transportation vehicles are particularly high. Therefore, some bridge construction projects have begun to use prefabricated bridge pier cap beam reinforcement cages, that is, the bridge pier cap beam reinforcement cages that have been tied in the factory are hoisted to the piers and assembled with the cast-in-place concrete formwork of the cap beam before casting the cap beam in place. This can not only save the time of binding the cap beam reinforcement on site, thereby improving the efficiency of bridge construction, but also solve the problem of the inconvenience of transportation due to the heavy weight of the prefabricated cap beam. However, since the prefabricated bridge pier cap beam reinforcement cage is not light in weight and cannot be guaranteed to be completely secure after binding, the bridge pier cap beam reinforcement cage is easily deformed due to local force concentration during the hoisting process of the bridge pier cap beam reinforcement cage. Utility Model Content

[0003] The utility model aims to provide an improved bridge pier cap beam reinforcement cage hoisting device to solve the problem of deformation of the bridge pier cap beam reinforcement cage due to local force concentration during hoisting.

[0004] A device for lifting a reinforcement cage of a bridge pier cap beam is provided, comprising: a crossbeam system, comprising a plurality of crossbeams which are arranged above the reinforcement cage of the bridge pier cap beam, are arranged at intervals along the length direction of the reinforcement cage of the bridge pier cap beam, and are extended along the width direction of the reinforcement cage of the bridge pier cap beam; a longitudinal beam system, comprising a longitudinal beam which is arranged above the crossbeam system, is respectively connected to each of the plurality of crossbeams as a whole, and is extended along the length direction of the reinforcement cage of the bridge pier cap beam, and lifting ears are distributed on the longitudinal beams; a cable system, comprising a plurality of transverse cables which are respectively arranged below corresponding crossbeams, have one end connected to one end of the corresponding crossbeam, and have the other end connected to the other end of the corresponding crossbeam after passing around the bottom of the reinforcement cage of the bridge pier cap beam, wherein the plurality of transverse cables form a lifting net surrounding the reinforcement cage of the bridge pier cap beam.

[0005] According to an embodiment of the present application, both ends of each of the multiple beams are respectively installed with lifting rings, and the two ends of the corresponding transverse cables are respectively mounted on the corresponding lifting rings.

[0006] According to an embodiment of the present application, both ends of each of the multiple beams have upturned ear plates, and through holes are opened on the ear plates, and corresponding lifting rings are mounted on the ear plates through the through holes.

[0007] According to an embodiment of the present application, each of the multiple beams is a plate-like structure, and the lower surface of the plate-like structure is in contact with the upper surface of the steel cage of the bridge pier cap beam.

[0008] According to an embodiment of the present application, the longitudinal beam is made of steel sections, and each of the multiple cross beams is made of steel plates and is connected to the longitudinal beam as a whole through threaded connection or welding.

[0009] According to an embodiment of the present application, the plurality of transverse cables are respectively made of steel cables; the longitudinal cables are also made of steel cables.

[0010] According to an embodiment of the present application, the cable system also includes a longitudinal cable arranged below the longitudinal beam, one end of which is connected to one end of the longitudinal beam and the other end of which is connected to the other end of the longitudinal beam after passing around the bottom of the steel cage of the bridge pier cap beam.

[0011] According to an embodiment of the present application, the number of the longitudinal cables is multiple and they are dispersedly arranged in the width direction of the steel cage of the bridge pier cap beam.

[0012] According to an embodiment of the present application, two ends of the longitudinal beam are respectively installed with lifting rings, and two ends of the longitudinal cable are respectively mounted on the corresponding lifting rings.

[0013] By surrounding the lifting net of the bridge pier cap beam reinforcement cage, the force applied by the bridge pier cap beam reinforcement cage lifting device on the bridge pier cap beam reinforcement cage can be dispersed at the bottom of the bridge pier cap beam reinforcement cage, thereby avoiding local force concentration during the lifting process of the bridge pier cap beam reinforcement cage and reducing the tensile stress in the bridge pier cap beam reinforcement cage, thereby effectively solving the deformation problem of the bridge pier cap beam reinforcement cage during the lifting process.

[0014] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through practice. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of this specification are used to assist the understanding of the present invention. The contents provided in the drawings and the related descriptions in this specification can be used to explain the present invention, but do not constitute an improper limitation on the present invention.

[0016] Figure 1 Schematic diagram of the bridge pier cap beam reinforcement cage after prefabrication in the factory.

[0017] Figure 2 This is a usage status diagram of the bridge pier cap beam reinforcement cage hoisting device according to an embodiment of the utility model.

[0018] Figure 2 The grey area in the figure represents the prefabricated bridge pier cap reinforcement cage profile. DETAILED DESCRIPTION

[0019] The utility model is described clearly and completely below in conjunction with the accompanying drawings. A person skilled in the art will be able to implement the utility model based on these descriptions. Before describing the utility model in conjunction with the accompanying drawings, it should be particularly noted that:

[0020] The technical solutions and technical features provided in each section, including the following description, can be combined with each other without conflict. In addition, where possible, these technical solutions, technical features and related combinations can be assigned specific technical themes and protected by relevant patents.

[0021] The embodiments of the utility model involved in the following description are usually only a part of the embodiments rather than all the embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of patent protection.

[0022] Regarding the terms and units in this specification: The terms "include", "comprises", "have" and any variations thereof in this specification and the corresponding claims and related parts are intended to cover non-exclusive inclusions. In addition, other relevant terms and units can be reasonably interpreted based on the relevant content provided in this specification.

[0023] like Figure 1 As shown, after being prefabricated in the factory, the steel cage 1 of the bridge pier cap beam is a large steel cage that is still heavy (of course, it is much lighter than the prefabricated cap beam), and cannot be completely secure by binding. When the steel cage 1 of the bridge pier cap beam is hoisted in the traditional way, it is necessary to set local lifting points on the steel cage 1 of the bridge pier cap beam (for example, insert two lifting beams at intervals in the length direction of the steel cage 1 of the bridge pier cap beam), and apply an upward pulling force to the lifting points by a crane. At this time, vertical tensile stress is generated inside the steel cage 1 of the bridge pier cap beam. During the hoisting process, the steel cage 1 of the bridge pier cap beam is prone to deformation, which may cause subsequent assembly errors.

[0024] In this regard, according to Figure 2As shown, a bridge pier cap beam reinforcement cage hoisting device according to an embodiment of the utility model comprises: a crossbeam system 21, comprising a plurality of crossbeams 211 which are arranged above the bridge pier cap beam reinforcement cage 1, arranged at intervals along the length direction of the bridge pier cap beam reinforcement cage 1, and extending along the width direction of the bridge pier cap beam reinforcement cage; a longitudinal beam system 22, comprising a longitudinal beam 221 which is arranged above the crossbeam system 21, connected to each of the plurality of crossbeams 211 as a whole, and extending along the length direction of the bridge pier cap beam reinforcement cage 1, and wherein lifting ears 222 are distributed on the longitudinal beam 221; a cable system 23, comprising a plurality of transverse cables 231 which are respectively arranged below corresponding crossbeams 211, one end of which is connected to one end of corresponding crossbeams 211, and the other end of which is connected to the other end of corresponding crossbeams 211 after passing around the bottom of the bridge pier cap beam reinforcement cage 1, wherein the plurality of transverse cables 231 form a hoisting net surrounding the bridge pier cap beam reinforcement cage 1.

[0025] By surrounding the lifting net of the bridge pier cap beam reinforcement cage 1, the force applied by the bridge pier cap beam reinforcement cage lifting device on the bridge pier cap beam reinforcement cage 1 can be dispersed at the bottom of the bridge pier cap beam reinforcement cage 1, thereby avoiding local force concentration during the lifting process of the bridge pier cap beam reinforcement cage and reducing the tensile stress in the bridge pier cap beam reinforcement cage 1, effectively solving the deformation problem of the bridge pier cap beam reinforcement cage 1 during the lifting process.

[0026] As an improvement, Figure 2 As shown, the cable system 23 also includes a longitudinal cable 232 which is arranged below the longitudinal beam 221, one end of which is connected to one end of the longitudinal beam 221 and the other end of which is connected to the other end of the longitudinal beam 221 after passing through the bottom of the bridge pier cap beam reinforcement cage 1.

[0027] Preferably, the number of the longitudinal cables 232 is multiple and they are dispersedly arranged in the width direction of the bridge pier cap beam reinforcement cage 1.

[0028] On the basis of the hoisting net formed by the transverse cables, the longitudinal cables can provide additional support and constraints in the length direction of the steel cage of the bridge pier cap beam, better adapt to the geometric shape of the steel cage of the bridge pier cap beam, and reduce deformation during the hoisting process. Multiple dispersed longitudinal cables can further disperse the hoisting force, reduce local stress concentration, and improve the stability of the hoisting process.

[0029] In addition, the two ends of each of the plurality of cross beams 211 are respectively installed with a lifting ring 233, and the two ends of the corresponding transverse cables 231 are respectively mounted on the corresponding lifting rings. Similarly, the two ends of the longitudinal beam 221 are respectively installed with a lifting ring, and the two ends of the longitudinal cables 232 are respectively mounted on the corresponding lifting rings.

[0030] Specifically, the plurality of transverse cables 231 are respectively made of steel cables; the longitudinal cables 232 are also made of steel cables.

[0031] Specifically, both ends of each of the plurality of beams 211 are provided with upwardly tilted ear plates, and through holes are provided on the ear plates, and corresponding hanging rings 233 are mounted on the ear plates through the through holes.

[0032] The upturned ear plate can make the position of the lifting ring higher than the beam, avoiding direct contact between the lifting ring and the surface of the steel cage, and can easily install and remove the lifting ring, thereby improving the versatility and reusability of the device.

[0033] Specifically, each of the multiple cross beams 211 is a plate-like structure, and the lower surface of the plate-like structure is in contact with the upper surface of the steel cage of the bridge pier cap beam.

[0034] The plate structure can provide a larger contact area, so that the beam and the surface of the steel cage fit closely, reducing local stress concentration. The plate structure is light in weight, which is conducive to reducing the deadweight of the lifting device and reducing the requirements for lifting equipment.

[0035] Specifically, the longitudinal beam 221 is made of steel, and each of the plurality of cross beams 211 is made of a steel plate and is connected to the longitudinal beam as a whole by threaded connection or welding.

[0036] The above is a description of the relevant contents of the utility model. A person skilled in the art will be able to implement the utility model based on these descriptions. Based on the above contents of this specification, all other embodiments obtained by a person skilled in the art without making any creative work shall fall within the scope of patent protection.

Claims

1. A lifting device for a steel cage of a bridge pier cap beam, characterized in that: include: The crossbeam system comprises a plurality of crossbeams arranged above the steel cage of the bridge pier cap beam, arranged at intervals along the length direction of the steel cage of the bridge pier cap beam, and extending along the width direction of the steel cage of the bridge pier cap beam; A longitudinal beam system, comprising a longitudinal beam arranged above the transverse beam system, respectively connected to each of the plurality of transverse beams as a whole, and extending along the length direction of the steel cage of the bridge pier cap beam, wherein the longitudinal beam is provided with lifting lugs; The cable system includes a plurality of transverse cables which are respectively arranged below the corresponding cross beams, one end of which is connected to one end of the corresponding cross beam and the other end of which is connected to the other end of the corresponding cross beam after passing around the bottom of the steel cage of the bridge pier cap beam. The plurality of transverse cables form a hanging net surrounding the steel cage of the bridge pier cap beam.

2. The bridge pier cap beam reinforcement cage hoisting device according to claim 1, characterized in that: Both ends of each of the multiple cross beams are respectively installed with lifting rings, and the two ends of the corresponding transverse cables are respectively sleeved on the corresponding lifting rings.

3. The bridge pier cap beam reinforcement cage hoisting device according to claim 2, characterized in that: Both ends of each of the plurality of cross beams are provided with upwardly tilted ear plates, and through holes are provided on the ear plates, through which corresponding lifting rings are sleeved on the ear plates.

4. The bridge pier cap beam reinforcement cage hoisting device according to any one of claims 1 to 3, characterized in that: Each of the multiple cross beams is a plate-like structure, and the lower surface of the plate-like structure is in contact with the upper surface of the steel cage of the bridge pier cap beam.

5. The bridge pier cap beam reinforcement cage hoisting device according to claim 4, characterized in that: The longitudinal beam is made of steel, and each of the plurality of cross beams is made of steel plates and is connected to the longitudinal beam as a whole by threaded connection or welding.

6. The bridge pier cap beam reinforcement cage hoisting device according to any one of claims 1 to 3, characterized in that: The plurality of transverse cables are respectively made of steel cables.

7. The bridge pier cap beam reinforcement cage hoisting device according to any one of claims 1 to 3, characterized in that: The cable system also includes a longitudinal cable which is arranged below the longitudinal beam, one end of which is connected to one end of the longitudinal beam and the other end of which is connected to the other end of the longitudinal beam after passing around the bottom of the steel cage of the bridge pier cap beam.

8. The bridge pier cap beam reinforcement cage hoisting device according to claim 7, characterized in that: The number of the longitudinal cables is multiple and they are dispersedly arranged in the width direction of the bridge pier cap beam reinforcement cage.

9. The bridge pier cap beam reinforcement cage hoisting device according to claim 7, characterized in that: The longitudinal cables are steel cables.

10. The bridge pier cap beam reinforcement cage hoisting device according to claim 7, characterized in that: Both ends of the longitudinal beam are respectively provided with lifting rings, and both ends of the longitudinal cable are respectively sleeved on the corresponding lifting rings.

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