Fabricated cable-stayed bridge counterweight device

Abstract

The utility model discloses an assembly type cable-stayed bridge counterweight device, and relates to the field of civil engineering. The device is arranged on a cable-stayed bridge and comprises a supporting frame, a counterweight part and a track system, the supporting frame is of a cubic structure as a whole and comprises two first side plates, two second side plates and a bottom plate, the two first side plates and the two second side plates are perpendicular to each other and fixedly connected, and the bottom plate is arranged on the bottom plate. The bottoms of the two first side plates and the bottoms of the two second side plates are fixedly connected to the bottom plate, the supporting frame is filled with the balance weight, the track system comprises a track and a pulley, the track is fixedly installed on the bridge floor of the cable-stayed bridge, and the pulley is fixedly connected with the bottom plate and slides on the track. The utility model is used for solving the problems of resource waste, complex operation and poor adaptability, can flexibly select the counterweight according to the actual situation on site, improves the repeated utilization rate, is simple and convenient to operate, and improves the construction efficiency.

Description

Technical Field

[0001] The utility model belongs to the field of civil engineering, and in particular relates to a counterweight device for an assembled cable-stayed bridge. Background Art

[0002] With the continued development of the global economy, China's industrialization and technological advancements have advanced, and bridge construction has shifted towards ultra-long spans, leading to the emergence of cable-stayed bridges. During cable-stayed bridge construction, a counterweight device is often required on one side of the bridge to ensure precise closure.

[0003] Currently, the counterweights used in the counterweight devices of cable-stayed bridges are mostly made of concrete blocks, sandbags, water tanks or other devices. Although these methods can meet basic needs, they have significant problems: first, there is a serious waste of resources, and the counterweight materials are mostly disposable, which does not conform to the concept of green and environmentally friendly construction; second, the operation is complicated, and the adjustment of the counterweight is inefficient and requires the collaboration of multiple people; third, the adaptability is poor, and it is difficult to flexibly adjust the counterweight plan according to on-site conditions.

[0004] Therefore, it is urgent to develop a counterweight device with high reuse rate, easy operation and high adaptability to better meet the needs of modern cable-stayed bridge construction and promote the further development of bridge construction technology. Utility Model Content

[0005] The utility model provides a counterweight device for an assembled cable-stayed bridge, which solves the problems of resource waste, complicated operation and poor adaptability. The counterweight material can be flexibly selected according to the actual situation on site, thereby increasing the reuse rate, simplifying the operation and improving the construction efficiency.

[0006] The technical solutions used in this utility model are as follows:

[0007] A counterweight device for an assembled cable-stayed bridge is provided on the cable-stayed bridge, comprising:

[0008] The support frame includes a first side plate, a second side plate and a bottom plate, wherein the first side plates and the second side plates each have two, the two first side plates and the two second side plates are perpendicular to each other and fixedly connected, and the bottoms of the two first side plates and the two second side plates are fixedly connected to the bottom plate,

[0009] A counterweight, the counterweight being filled in the support frame,

[0010] A track system includes a track and a pulley. The track is fixedly installed on the deck of the cable-stayed bridge. The pulley is connected to the base plate through a transmission shaft. The pulley is adapted to the track.

[0011] Furthermore, splicing grooves are provided at both ends of one side of the first side panel, and splicing blocks are added on both sides of the second side panel. The splicing grooves on the two first side panels cooperate with the splicing blocks on the two second side panels. Splicing blocks are added to the bottoms of the first side panel and the second side panel. Splicing grooves are provided at the four sides of the upper surface of the bottom panel, and the splicing blocks on the first side panel and the second side panel cooperate with the splicing grooves on the bottom panel.

[0012] Furthermore, a plurality of lifting eyes are provided on the first side plate, the second side plate and the bottom plate.

[0013] Furthermore, it also includes a vial, a fixing piece is provided on the first side plate, and the vial is installed on the fixing piece.

[0014] Furthermore, it also includes a jack, which is placed at a corner below the support frame.

[0015] Furthermore, it also includes a weighing sensor, which is installed below the support frame.

[0016] Furthermore, it also includes an alarm device, a display screen and a wire, and the weighing sensor, the alarm device and the display screen are electrically connected through the wire.

[0017] The beneficial effects of the utility model are:

[0018] 1. The utility model adopts an assembled design. The support frame consists of a first side plate, a second side plate and a bottom plate. During the construction of the cable-stayed bridge, the counterweight can be filled into the support frame as needed. After the construction is completed, the counterweight can be taken out and used in other projects, while the support frame can be retained and used in subsequent projects, thereby realizing resource conservation and reuse, and complying with the concept of green and environmentally friendly construction.

[0019] 2. The support frame in the present invention is designed as a cubic structure, which is stable and easy to assemble and disassemble, reducing the complex operations on the construction site; at the same time, through the design of the track system and pulleys, the counterweight device can slide easily on the deck of the cable-stayed bridge, and the position can be adjusted without the cooperation of multiple people; in addition, the increase and decrease of the counterweight also becomes more flexible and quick, and only the counterweight parts in the support frame need to be adjusted, without the need for large-scale changes to the entire device. This type of design makes operation simple and greatly improves construction efficiency.

[0020] 3. The selection of counterweights in the present invention can be determined based on actual site conditions without being restricted to any particular material, thus achieving diversification of counterweights. Furthermore, the setting of the track system also enables the counterweight device to move freely along the bridge deck, adapting to construction requirements at different locations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the assembled cable-stayed bridge counterweight device provided by the utility model;

[0022] Figure 2 Schematic diagram of the first side plate structure;

[0023] Figure 3 Schematic diagram of the second side plate structure;

[0024] Figure 4 Schematic diagram of the first base plate structure;

[0025] Figure 5 Provide a structural diagram for the rail system operation.

[0026] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0027] 1. Support frame; 2. Counterweight; 3. Level bubble; 4. Jack; 5. Track system; 6. Weighing sensor; 7. Alarm device; 8. Display screen; 9. Wire; 11. First side panel; 12. Second side panel; 13. Bottom plate; 14. Lifting eye; 15. Splicing groove; 16. Splicing block; 17. Fixing parts; 51. Track; 52. Pulley. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings.

[0030] Example 1

[0031] like Figure 1-Figure 5 As shown, this embodiment provides an assembled cable-stayed bridge counterweight device, which is arranged on the cable-stayed bridge and includes a support frame 1, a counterweight member 2, a level bubble 3, a jack 4, a track system 5, a weighing sensor 6, an alarm device 7, a display screen 8 and multiple wires 9.

[0032] Specifically, if Figure 1-Figure 4As shown, the support frame 1 includes two first side panels 11, two second side panels 12 and a bottom panel 13. Splicing grooves 15 are provided at both ends of one side of the first side panel 11, and splicing blocks 16 are added on both sides of the second side panel 12. The splicing grooves 15 on the two first side panels 11 are precisely matched with the splicing blocks 16 on the two second side panels 12 and welded, so that the two first side panels 11 and the two second side panels 12 are perpendicular to each other and fixedly connected. In addition, splicing blocks 16 are added to the bottoms of the first side panels 11 and the second side panels 12, and splicing grooves are provided on the four sides of the upper surface of the bottom panel 13. 15. The splicing blocks 16 on the first side panel 11 and the second side panel 12 are precisely matched and welded with the splicing grooves 15 on the bottom plate 13, so that the bottoms of the two first side panels 11 and the two second side panels 12 are fixedly connected to the bottom plate 13. Finally, the support frame 1 is a cubic structure as a whole. The material used for the support frame 1 is steel. It should be noted that the aspect ratio of the above-mentioned support frame 1 should be adjusted according to the specific bridge type. The fitting clearance between the splicing grooves 15 and the splicing blocks 16 shall not exceed 5 mm. If it exceeds, other steel structure devices should be inserted for welding to ensure the safety of the structure.

[0033] In order to facilitate hoisting, a plurality of hoisting eyes 14 are provided on the first side plate 11 , the second side plate 12 and the bottom plate 13 .

[0034] Specifically, if Figure 1 As shown, the counterweight 2 is filled in the support frame 1 to apply counterweight to the structure. The selection of the counterweight 2 should be determined according to the actual conditions on site. The counterweight 2 can be construction waste, concrete waste, river sand, river water, etc., and can be mixed and used without being restricted to any material. It should be noted that when the counterweight 2 is selected from river water, river sand and other materials that are prone to leakage, the material needs to be pre-processed by bagging and sealing before counterweighting.

[0035] Specifically, if Figure 1 and Figure 5 As shown, the track system 5 includes a track 51 and a pulley 52. ​​The track 51 is fixed to the deck of the cable-stayed bridge by bolts, and the pulley 52 is rotatably connected to the base plate 13 through a transmission shaft. The pulley 52 slides on the track 51 to realize the movement of the assembled cable-stayed bridge counterweight device, thereby realizing counterweighting at different counterweight positions.

[0036] In order to check whether the counterweight device is in a horizontal state and ensure the safety of on-site construction, Figure 1 and Figure 2 As shown, it also includes a vial 3. A fixing piece 17 is provided on the first side plate 11. The vial 3 is installed on the fixing piece 17 and is fixedly connected to the support frame 1.

[0037] To adjust the counterweight, ensure it is perfectly level, e.g. Figure 1 and Figure 4As shown, a jack 4 is also included, which is placed at a corner below the bottom plate 13 and adjusted through the jacking structure.

[0038] In order to monitor the counterweight value in real time, so as to better determine the accurate counterweight of the cable-stayed bridge and provide guarantee for the accurate closure of the cable-stayed bridge, such as Figure 1 As shown, it also includes a weighing sensor 6, an alarm device 7, a display screen 8 and multiple wires 9. The weighing sensor 6 is installed under the support frame 1. The weighing sensor 6, the alarm device 7 and the display screen 8 are electrically connected through the wires 9. After the weighing sensor 6 weighs the weight, it transmits the data to the alarm device 7 and the display screen 8 through the wires 9, and records the counterweight tonnage in real time to achieve accurate counterweighting.

[0039] Example 2

[0040] like Figure 1-Figure 5 As shown, this embodiment provides a prefabricated cable-stayed bridge counterweight device. The specific structure and positional relationship are the same as those in Example 1. The specific steps of the prefabricated cable-stayed bridge counterweight device described in this embodiment are as follows:

[0041] Step 1: Splice the first side plate 11, the second side plate 12, and the bottom plate 13, and weld the load cell 6 and the transmission shaft of the pulley 52 to the bottom of the bottom plate 13. Connect the load cell 6, the alarm device 7, and the display screen 8 through the wire 9 and set the target counterweight value in the alarm device 7 system. To determine the target counterweight value of the alarm device 7, the required counterweight tonnage should be determined first. The required counterweight tonnage of the cable-stayed bridge should be deducted from the actual deadweight of the support frame 1. The deduction result is the set target counterweight value.

[0042] Step 2: After the support frame 1 is installed, place the spirit level 3 in the fixing piece 17 and fix it on the support frame 1. Place the support frame 1 at the counterweight position calculated in advance, and place oblique support members (not shown in the figure) around the support frame 1 to ensure its safety. Finally, adjust the support frame 1 to a completely horizontal state using the jack 4.

[0043] Step 3: After the support frame 1 is completely level, fill the counterweight 2 into the support frame 1, and observe the level bubble 3 while filling. If the counterweight device is found to be not in a horizontal state, stop filling the counterweight 2 immediately and start the jack 4 in time to readjust the device to a horizontal state to ensure the absolute safety of the device;

[0044] Step 4: After the predetermined weight value is filled (the predetermined weight value is 75%-85% of the set target weight value), the alarm device 7 issues a warning. Then, the counterweight 2 should be filled while observing the level bubble 3 and the display screen 8. When the target weight is reached, the filling of the counterweight 2 should be stopped immediately to achieve accurate weighting.

[0045] Step 5. After the counterweighting is completed, it is necessary to recalculate whether the device needs secondary counterweighting. If secondary counterweighting is not required, the counterweight 2 should be placed in the designated position and the support frame 1 should be removed on site for next use; if secondary counterweighting is required and the counterweight position changes, the counterweight device can be moved by rolling the pulley 52 on the track 51. If the counterweight position does not need to be changed, the target counterweight value needs to be reset and step 4 can be repeated. After the counterweighting is completed, the support frame 1 needs to be removed for next use. It should be noted that the movement of the counterweight device through the track system 5 requires the cooperation of the construction site drive device. The choice of the on-site drive device should be able to withstand the tonnage of the counterweight device and ensure the safety of the site. Cranes, tower cranes, etc. can be selected.

[0046] Example 3

[0047] The specific steps for determining the size of the support frame 1 in step 1 of Example 2 are as follows:

[0048] Step A: Determine the counterweight 2 on the construction site and calculate the counterweight tonnage required for the cable-stayed bridge in advance;

[0049] After step B, the counterweight tonnage and the counterweight 2 on the construction site are confirmed, the minimum bulk density of the counterweight 2 should be used as the calculation parameter and the counterweight tonnage should be rounded up for reuse next time. The reason for taking the minimum bulk density of the counterweight 2 is that the size of the support frame 1 designed according to the minimum bulk density can meet the tonnage requirements regardless of the counterweight 2 filled on site, and the tonnage is rounded up for convenience of this use and for next use;

[0050] Step C: After the above values ​​are confirmed, the shape of the support frame 1 should be designed. The support frame 1 is a cubic structure, and the aspect ratio can be adjusted according to the specific bridge type;

[0051] Step D: After the shape is confirmed, the final design of the support frame 1 can be carried out according to the above values. The error between the design size and the actual size of each structure should not exceed 1 cm. The gap between the splicing groove 15 and the splicing block 16 should not exceed 5 mm. If the excess value is too large, other steel structure devices should be inserted for welding to ensure the safety of the structure.

[0052] The above describes in detail several embodiments of the present invention. However, the above contents are only preferred embodiments of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A counterweight device for an assembled cable-stayed bridge, arranged on a cable-stayed bridge, characterized in that: include: A support frame (1), the support frame (1) comprising a first side panel (11), a second side panel (12) and a bottom panel (13), the first side panels (11) and the second side panels (12) each having two, the two first side panels (11) and the two second side panels (12) being perpendicular to each other and fixedly connected, the bottoms of the two first side panels (11) and the two second side panels (12) being fixedly connected to the bottom panel (13), A counterweight (2), the counterweight (2) being filled in the support frame (1), A track system (5) includes a track (51) and a pulley (52), wherein the track (51) is fixedly mounted on the deck of the cable-stayed bridge, the pulley (52) is connected to the base plate (13) via a transmission shaft, and the pulley (52) is adapted to the track (51).

2. The counterweight device for an assembled cable-stayed bridge according to claim 1, characterized in that: Both ends of one side of the first side panel (11) are provided with splicing grooves (15), and splicing blocks (16) are added on both sides of the second side panel (12). The splicing grooves (15) on the two first side panels (11) cooperate with the splicing blocks (16) on the two second side panels (12). Splicing blocks (16) are added to the bottoms of the first side panel (11) and the second side panel (12). Splicing grooves (15) are provided on the four sides of the upper surface of the bottom panel (13), and the splicing blocks (16) on the first side panel (11) and the second side panel (12) cooperate with the splicing grooves (15) on the bottom panel (13).

3. The counterweight device for an assembled cable-stayed bridge according to claim 1, characterized in that: The first side plate (11), the second side plate (12) and the bottom plate (13) are all provided with a plurality of lifting eyes (14).

4. The counterweight device for an assembled cable-stayed bridge according to claim 1, characterized in that: It also includes a level bubble (3), a fixing piece (17) is provided on the first side plate (11), and the level bubble (3) is installed on the fixing piece (17).

5. The counterweight device for an assembled cable-stayed bridge according to claim 1, characterized in that: It also includes a jack (4), which is placed at a lower corner of the support frame (1).

6. The counterweight device for an assembled cable-stayed bridge according to claim 1, characterized in that: It also includes a weighing sensor (6), which is installed below the support frame (1).

7. The counterweight device for an assembled cable-stayed bridge according to claim 6, characterized in that: It also includes an alarm device (7), a display screen (8) and a wire (9), and the weighing sensor (6), the alarm device (7) and the display screen (8) are electrically connected via the wire (9).

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