Anchor point hanging bracket device for lifting cable hanging basket

Abstract

The utility model belongs to the technical field of bridge construction, and particularly relates to a guy cable hanging basket lifting anchor point hanging bracket device which comprises a main beam. The bailey beam cantilever supports are mounted on the two sides of the upper end face of the main beam; the guy cable hanging basket main body is positioned below the bailey beam cantilever bracket; the hanging bracket is sleeved on a front cross beam and a rear cross beam of the cable-stayed hanging basket main body; the first lifting system is arranged on a front cross beam hanging bracket at the front end of the bailey beam cantilever bracket; and the second lifting system is arranged on the upper end face of the main beam. According to the utility model, through the hanging bracket sleeved on the cross beam of the cable-stayed hanging basket main body, the connecting area of the lifting system and the cable-stayed hanging basket main body can be increased, and the cable-stayed hanging basket main body can be effectively prevented from being deformed due to stress; in addition, the hanging bracket is of a prefabricated framework and is convenient to mount and dismount in the construction process, and the construction efficiency can be improved; and secondly, according to the lifting system, finish rolling deformed steel bars are adopted to replace steel strands to pull the cable-stayed hanging basket body, and shaking of the cable-stayed hanging basket body in the lifting process can be effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and particularly relates to a hanger device for the lower anchor point of a cable-stayed hanging basket lifting. Background Technique

[0002] During the booming development period of bridge construction in China, cable-stayed bridges play a crucial role. Among them, the main girder is the most important component, and the quality of the main girder directly affects the success or failure of the entire bridge construction, as well as the structural force, internal force conditions and line shape of the entire cable-stayed bridge, and directly affects the structural safety and service performance of the bridge.

[0003] The construction techniques of the main girder of cable-stayed bridges include front support hanging basket construction, rear support hanging basket construction and support construction, etc. Among them, in the front support hanging basket construction, since the front end of the hanging basket is anchored to the main tower, part of the mass of the segment concrete is loaded onto the main tower, greatly reducing the load on the already cast main girder during the new casting stage. Therefore, the front-point cable-stayed hanging basket is more common in the construction of the main girder of cable-stayed bridges.

[0004] The prior art CN103061269B discloses an overall installation method of a cable-stayed hanging basket. A lifting system is installed on the upper end face of each Bailey beam cantilever support. The lifting system includes two front support continuous jacks and one rear support continuous jack that are sequentially installed on the Bailey beam cantilever. Each continuous jack is connected to the hanging basket main body through a steel strand. By setting a detachable Bailey beam cantilever support and a lifting system, during installation, first install the hanging basket main body on the ground. After the hanging basket main body is lifted to a certain height by the lifting system, it is horizontally pushed to the designed position under the action of the rearward moving triangular frame, and then install each template in the hanging basket main body. This installation method is simple in operation and low in cost. It is undeniable that the above effects can indeed be achieved by the patent disclosure, but it still has certain deficiencies: when using a steel strand to lift the cable-stayed hanging basket, the steel strand may shake, which may cause the cable-stayed hanging basket to shake; in addition, the contact area between the steel strand and the connection part of the cable-stayed hanging basket is small. During the lifting process of the cable-stayed hanging basket, the connection part between the cable-stayed hanging basket and the steel strand is subjected to a large force and there is a possibility of deformation.

[0005] The information disclosed in this background technical section is only intended to increase the understanding of the overall background of the present utility model, and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art already known to those of ordinary skill in the art. Content of the Utility Model

[0006] The purpose of the present utility model is to provide a hanger device for the lower anchor point of a cable-stayed hanging basket lifting to solve the problems existing in the prior art in the background technique.

[0007] To achieve the above purpose, the present utility model provides the following technical solutions:

[0008] A lifting lower anchor point hanging basket device for a cable-stayed hanging basket, comprising:

[0009] A main beam;

[0010] A Bailey beam cantilever support installed on both sides of the upper end surface of the main beam;

[0011] A cable-stayed hanging basket main body located below the Bailey beam cantilever support;

[0012] A hanging basket sleeved on the front cross beam and the rear cross beam of the cable-stayed hanging basket main body;

[0013] A first lifting system arranged at the front end of the Bailey beam cantilever support, comprising a first continuous jack fixed on the upper end surface of the front end of the Bailey beam cantilever support, a first lifting high-strength precision rolled threaded steel with its top connected to the first continuous jack and its bottom vertically penetrating through the front end of the Bailey beam cantilever support and connected to the hanging basket of the front cross beam of the cable-stayed hanging basket main body;

[0014] A second lifting system arranged on the upper end surface of the main beam and behind the Bailey beam cantilever support, comprising a second continuous jack fixed on the upper end surface of the main beam, a second lifting high-strength precision rolled threaded steel with its top connected to the second continuous jack and its bottom vertically penetrating through the main beam and connected to the hanging basket of the rear cross beam of the cable-stayed hanging basket main body.

[0015] Preferably, the middle and rear ends of the Bailey beam cantilever support are respectively fixed on the upper end surface of the main beam by 2 high-strength precision rolled threaded steel bars.

[0016] Preferably, the hanging basket comprises an upper rod, a lower rod arranged at intervals up and down, and symmetrically arranged steel belts. The top of the steel belt is hinged to the upper rod, and the bottom is hinged to the lower rod.

[0017] Preferably, a lifting lug is respectively welded on the lower surface of both ends of the upper rod and the upper surface of both ends of the lower rod. The top of the steel belt is hinged to the upper rod by passing a pin through the lifting lug of the upper rod and the top of the steel belt, and the bottom of the steel belt is hinged to the lower rod by passing a pin through the lifting lug of the lower rod and the bottom of the steel belt.

[0018] Preferably, a high-strength precision rolled threaded steel reserved hole is provided in the middle of the upper rod; the bottom of the first lifting high-strength precision rolled threaded steel and the bottom of the second lifting high-strength precision rolled threaded steel penetrate through the high-strength precision rolled threaded steel reserved holes at the corresponding positions and are then connected to the hanging baskets at the corresponding positions by means of anchor fittings and wedge grips.

[0019] Preferably, the space between the lifting lug of the lower rod and the cable-stayed hanging basket main body is wedged tightly with square timbers.

[0020] Preferably, a cushion beam is fixed at the bottom of the first continuous jack.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] Through the hanger sleeved on the cross beam of the cable-stayed hanging basket main body, the utility model can increase the connection area between the lifting system and the cable-stayed hanging basket main body, and can effectively avoid the deformation of the cable-stayed hanging basket main body due to stress; in addition, the hanger is a prefabricated structure, and the installation and disassembly during the construction process are convenient, which is beneficial to improving the construction efficiency; secondly, the lifting system uses fine rolled threaded steel to replace the steel strand to pull the cable-stayed hanging basket main body, and can effectively avoid the shaking of the cable-stayed hanging basket main body during the lifting process. The overall device has a novel structural design and meets the construction needs. Description of the Drawings

[0023] Figure 1 is the overall structural schematic diagram of the utility model;

[0024] Figure 2 is Figure 1 the enlarged view of the hanger at position A in

[0025] Figure 3 is along Figure 1 the sectional view taken along I-I in

[0026] Figure 4 is the structural schematic diagram of the hanger of the utility model;

[0027] Figure 5 is Figure 4 the left view of

[0028] Figure 6 is Figure 4 the top view of

[0029] Figure 7 is the top view of the cable-stayed hanging basket main body.

[0030] Main reference numeral description:

[0031] 1, main beam; 11, sleeve;

[0032] 2, Bailey beam cantilever support; 21, fixed fine rolled threaded steel;

[0033] 3, cable-stayed hanging basket main body; 31, front cross beam; 32, rear cross beam;

[0034] 4, hanger; 41, upper rod; 411, reserved hole for fine rolled threaded steel; 42, lower rod; 43, steel strip; 44, lifting lug; 45, pin shaft; 46, square timber;

[0035] 5, first lifting system; 51, first continuous jack; 52, first lifting fine rolled threaded steel; 53, cushion beam;

[0036] 6. Second lifting system; 61. Second continuous jack; 62. Second lifting fine-threaded steel bar. Detailed implementation manner

[0037] The following is a clear and complete description of the technical solution of the patent of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0038] Embodiment

[0039] Refer to the appendix Figures 1-7 , a cable-stayed hanging basket lifting lower anchor hanger device, comprising:

[0040] Main beam 1;

[0041] The Bailey beam cantilever bracket 2 installed on both sides of the upper end surface of the main beam 1; Refer to Figure 1 It can be clearly seen that the middle and rear ends of the Bailey beam cantilever bracket 2 are respectively fixed on the upper end surface of the main beam 1 by 2 fixed fine-threaded steel bars 21; The top and bottom of the fixed fine-threaded steel bar 21 are respectively fixed and limited by 2 nuts;

[0042] The cable-stayed hanging basket main body 3 located below the Bailey beam cantilever bracket 2;

[0043] The hanger 4 sleeved on the front cross beam 31 and the rear cross beam 32 of the cable-stayed hanging basket main body 3; In this embodiment, the specific structure of the hanger 4 is: The hanger 4 includes an upper rod member 41 and a lower rod member 42 arranged at intervals up and down and symmetrically arranged steel belts 43. The top of the steel belt 43 is hinged to the upper rod member 41, and the bottom is hinged to the lower rod member 42; More specifically: On the lower surfaces of both ends of the upper rod member 41 and the upper surfaces of both ends of the lower rod member 42, a lifting lug 44 is respectively welded. The top of the steel belt 43 is hinged to the upper rod member 41 by passing the pin shaft 45 through the lifting lug 44 of the upper rod member 41 and the top end of the steel belt 43, and the bottom of the steel belt 43 is hinged to the lower rod member 42 by passing the pin shaft 45 through the lifting lug 44 of the lower rod member 42 and the bottom of the steel belt 43; In addition, a square wood 46 is wedged between the lifting lug 44 of the lower rod member 42 and the cable-stayed hanging basket main body 3; In addition, it should be added that a safety pin is provided on the pin shaft 45.

[0044] The first lifting system 5 arranged at the front end of the Bailey beam cantilever bracket 2. The first lifting system 5 includes a first continuous jack 51 fixed on the upper end surface of the front end of the Bailey beam cantilever bracket 2, and a first lifting fine-threaded steel bar 52 whose top is connected to the first continuous jack 51 and whose bottom vertically penetrates the front end of the Bailey beam cantilever bracket 2 and is connected to the hanger 4 of the front cross beam 31 of the cable-stayed hanging basket main body 3;

[0045] The second lifting system 6 is arranged on the upper end surface of the main beam 1 and behind the Bailey beam cantilever support 2, and includes a second continuous jack 61 fixed on the upper end surface of the main beam 1, and a second lifting fine-threaded steel bar 62 with its top connected to the second continuous jack 61 and its bottom vertically penetrating downward through the main beam 1 and connecting to the hanger 4 of the rear cross beam 32 of the cable-stayed hanging basket main body 3. It should be supplemented here that sleeves 11 corresponding to the second lifting fine-threaded steel bar 62 are pre-embedded on the main beam 1, which facilitates the penetration of the second lifting fine-threaded steel bar 62 through the main beam 1.

[0046] In this embodiment, the specific connection method of the first lifting fine-threaded steel bar 52 and the second lifting fine-threaded steel bar 62 to the hanger 4 is as follows: a fine-threaded steel bar reserved hole 411 is provided in the middle of the upper member 41; the bottom of the first lifting fine-threaded steel bar 52 and the bottom of the second lifting fine-threaded steel bar 62 penetrate through the fine-threaded steel bar reserved hole 411 at the corresponding position, and then the first lifting fine-threaded steel bar 52 and the second lifting fine-threaded steel bar 62 are connected to the hanger 4 at the corresponding position by means of an anchor and a clip (this part is prior art and not marked in the drawings).

[0047] In addition, in this embodiment, a cushion beam 53 is fixed at the bottom of the first continuous jack 51, and the top of the first lifting fine-threaded steel bar 52 penetrates through the cushion beam 53 and then connects to the first continuous jack 51.

[0048] First, prefabricate and process the upper member 41, the lower member 42, the steel strip 43 and the lifting lug 44 in the factory, and open a fine-threaded steel bar reserved hole 411 on the upper member 41. During use, according to the connection relationship among the upper member 41, the lower member 42 and the steel strip 43 described above, the hanger 4 is partially assembled by means of the pin 45 and then sleeved on the cross beam of the cable-stayed hanging basket main body 3, and then the remaining part is assembled. After confirming that the safety pin is inserted into the pin 45, the lifting lug 44 of the lower member 42 and the cable-stayed hanging basket main body 3 are wedged tightly with a square timber 46.

[0049] The bottom of the first lifting fine-threaded steel bar 52 and the bottom of the second lifting fine-threaded steel bar 62 penetrate through the fine-threaded steel bar reserved hole 411 at the corresponding position, and then the first lifting fine-threaded steel bar 52 and the second lifting fine-threaded steel bar 62 are connected to the hanger 4 at the corresponding position by means of an anchor and a clip in the prior art.

[0050] During the construction of the cable-stayed hanging basket main body 3, the hanger 4 is lifted by pulling the first lifting fine-threaded steel bar 52 by the first continuous jack 51 and pulling the second lifting fine-threaded steel bar 62 by the second continuous jack 61, and then the cable-stayed hanging basket main body 3 is lifted.

[0051] The foregoing description of the specific exemplary embodiments of the present utility model is for purposes of illustration and exemplification. These descriptions are not intended to limit the present utility model to the precise forms disclosed, and it is apparent that many changes and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present utility model and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present utility model, as well as various different selections and changes. The scope of the present utility model is intended to be defined by the claims and their equivalents.

Claims

1. A hanging device for lifting the lower anchor point of a guy rope hanging basket, characterized in that: include: Main beam; Bailey beam cantilever brackets installed on both sides of the upper end surface of the main beam; A guy rope hanging basket body located below the Bailey beam cantilever bracket; A hanger mounted on the front crossbeam and the rear crossbeam of the guy wire hanging basket body; The first lifting system arranged at the front end of the Bailey beam cantilever bracket includes a first continuous jack fixed to the upper end surface of the front end of the Bailey beam cantilever bracket, and a first lifting finely rolled threaded steel bar whose top is connected to the first continuous jack and whose bottom vertically passes through the front end of the Bailey beam cantilever bracket and is connected to the front crossbeam hanger of the guying basket body; The second lifting system is arranged on the upper end surface of the main beam and located behind the Bailey beam cantilever bracket, including a second continuous jack fixed to the upper end surface of the main beam, a second lifting fine-rolled threaded steel bar whose top is connected to the second continuous jack and whose bottom vertically penetrates the main beam downward and is connected to the rear crossbeam hanger of the cable hanging basket body.

2. The lower anchor point hanger device for lifting the guy rope hanging basket according to claim 1 is characterized in that: The middle and rear ends of the Bailey beam cantilever bracket are respectively fixed to the upper end surface of the main beam by two fixed fine-rolled threaded steel bars.

3. The lower anchor point hanger device for lifting the guy rope hanging basket according to claim 1 is characterized in that: The hanger comprises an upper rod and a lower rod which are spaced apart from each other and a symmetrically arranged steel belt. The top of the steel belt is hinged to the upper rod, and the bottom is hinged to the lower rod.

4. The lower anchor point hanger device for lifting the guy wire hanging basket according to claim 3 is characterized in that: A lifting ear is welded on the lower surface at both ends of the upper rod and the upper surface at both ends of the lower rod respectively. A pin is used to penetrate the lifting ear of the upper rod and the top of the steel belt to hinge the top of the steel belt to the upper rod, and a pin is used to penetrate the lifting ear of the lower rod and the bottom of the steel belt to hinge the bottom of the steel belt to the lower rod.

5. The lower anchor point hanger device for lifting the guy wire basket according to claim 3 is characterized in that: A reserved hole for fine-rolled threaded steel is provided in the middle of the upper rod; after the bottom of the first and second fine-rolled threaded steel bars pass through the reserved holes for fine-rolled threaded steel bars at corresponding positions, the first and second fine-rolled threaded steel bars are connected to the hangers at corresponding positions with the help of anchors and clips.

6. The lower anchor point hanger device for lifting the guy wire basket according to claim 3 is characterized in that: The lower rod lifting ear and the rope hanging basket body are wedged tightly with square wood.

7. The lower anchor point hanger device for lifting the guy rope hanging basket according to claim 1 is characterized in that: A cushion beam is fixed at the bottom of the first continuous jack.

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