Novel reaction frame and hanging basket for rigid frame bridge side span closure construction

Abstract

The utility model provides a novel reaction frame and a hanging basket for side span closure construction of a rigid frame bridge, which are used for solving the problem that a cantilever end of a bridge floor for hoisting the hanging basket is stressed greatly during side span closure construction of the rigid frame bridge in the prior art, and comprise a first fixing mechanism, a second fixing mechanism and a support plate, the supporting plate is fixed to the first bridge floor through the first fixing mechanism, the supporting plate is connected with the operation platform of the hanging basket through the second fixing mechanism, so that the end, away from the second bridge floor, of the hanging basket is connected with the first bridge floor, stress of the cantilever end of the second bridge floor for hoisting the hanging basket is reduced, and therefore it is ensured that during rigid frame bridge construction, the hanging basket is not damaged. And by using the hanging basket, the bridge floor cannot be damaged, safe construction can be ensured, and potential safety hazards are avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of bridge construction, in particular, relate to a new type counterforce frame and hanging basket for rigid frame bridge side span closure construction. BACKGROUND

[0002] In continuous beam bridge, the pier body and the main beam are integrated into a continuous rigid frame bridge, the multi-span rigid frame bridge and the multi-span continuous-rigid frame bridge with continuous beam as the main span, all of which adopt prestressed concrete structure, and the main features of the continuous rigid frame without support are: (1) no support is set, support disease is avoided, cost is saved, maintenance cost is low in later period, and line outage caused by support replacement is avoided; (2) good seismic performance, horizontal force can be shared by each pier in earthquake, and continuous beam bridge needs to set brake pier or adopt special anti-seismic support; (3) pier beam is directly connected, line is continuous and clear, whole coordination is good, and landscape effect is good.

[0003] In the construction of rigid frame bridge, the hanging basket suspension pouring construction is generally adopted, the hanging basket needs to bear the weight of pouring concrete, steel bars and load and construction equipment in use, which has high tonnage requirement for the hanging basket, if the tonnage of the hanging basket is not consistent, construction safety hazard exists, construction cost is increased, and construction efficiency is not improved. In addition, when the span of the rigid frame bridge is large, and the two bridge surfaces are closed, due to the installation limitation of the hanging basket itself, the hanging basket can only be hoisted on one of the bridge surfaces. But due to the large span, the cantilever end of the bridge surface hoisting the hanging basket bears large force, and the burden of the bridge surface is increased. CONTENT OF THE UTILITY MODEL

[0004] In view of the above-mentioned defects of the prior art, the utility model aims at providing a new type counterforce frame and hanging basket for rigid frame bridge side span closure construction, which is used to solve the problem that the cantilever end of the bridge surface hoisting the hanging basket bears large force in the prior art.

[0005] To achieve the above and other related objectives, this utility model provides a novel reaction frame for the closure construction of the side span of a rigid frame bridge, comprising: a first fixing mechanism, a second fixing mechanism, and a support plate; the lower side of the support plate abuts against the first bridge deck, one end of the support plate is connected to the first fixing mechanism, and the other end is connected to the second fixing mechanism; the first fixing mechanism is used to fix the support plate to the first bridge deck, and the second fixing mechanism is used to fix the hanging basket to the support plate; the first fixing mechanism includes two first L-shaped mounting plates, two second L-shaped mounting plates, two sets of telescopic drive components, and two sets of limiting components; the second fixing mechanism is used to fix the hanging basket to the support plate; the third fixing mechanism is used to fix the support plate to the first bridge deck, and the second fixing mechanism is used to fix the hanging basket to the support plate; the first fixing mechanism includes two first L-shaped mounting plates, two second L-shaped mounting plates, two sets of telescopic drive components, and two sets of limiting components; the second fixing mechanism is used to fix the support plate to the first bridge deck, and the second fixing mechanism is used to fix the hanging basket to the first bridge deck. An L-shaped mounting plate, a second L-shaped mounting plate, a set of telescopic drive components, and a set of limiting components are provided in a corresponding manner. The short side of the first L-shaped mounting plate is used to connect with the support plate, and the long side is used to connect with the second L-shaped mounting plate. The short side of the second L-shaped mounting plate is used to connect with the first bridge deck. The fixed end of the telescopic drive component is connected to the short side of the first L-shaped mounting plate, and the movable end is connected to the short side of the second L-shaped mounting plate. The telescopic drive component is used to change the interval between the short sides of the first L-shaped mounting plate and the short sides of the second L-shaped mounting plate. The limiting components are used to fix the second L-shaped mounting plate on the first L-shaped mounting plate.

[0006] Optionally, the long side of the first L-shaped mounting plate is provided with a receiving cavity for accommodating the long side of the second L-shaped mounting plate, and the opposite side walls of the receiving cavity are respectively provided with sliding grooves; the first fixing mechanism further includes a mounting block and a limiting plate, the mounting block is located in the receiving cavity, and the opposite side walls of the receiving cavity are respectively provided with sliders for sliding connection with the sliding grooves; the limiting plate is detachably connected to the long side of the first L-shaped mounting plate; the limiting plate is provided with a clearance cavity for the long side of the second L-shaped mounting plate to pass through, and the long side of the second L-shaped mounting plate passes through the clearance cavity and connects with the mounting block.

[0007] Optionally, mounting holes are provided on the opposite side walls of the receiving cavity, and multiple first clearance holes are provided at intervals on the long side of the second L-shaped mounting plate; the limiting member passes through the first clearance holes and the mounting holes to limit the second L-shaped mounting plate on the first L-shaped mounting plate.

[0008] Optionally, the first fixing mechanism further includes a first fixing plate, the upper side of which is used to abut against the lower side of the first bridge deck, and the lower side is used to abut against the short side of the second L-shaped mounting plate.

[0009] Optionally, the second fixing mechanism further includes an elastic element disposed on the upper side of the first fixing plate for abutting against the lower side of the first bridge deck.

[0010] Optionally, the second fixing mechanism includes a second fixing plate, a third fixing plate, and a fixing component; the lower side of the second fixing plate is used to connect with the upper side of the support plate, the upper side of the third fixing plate is used to connect with the bottom surface of the hanging basket, and one end of the fixing component is connected to the second fixing plate and the other end is connected to the third fixing plate.

[0011] Optionally, the length of the second fixed plate and the third fixed plate is greater than the width of the support plate and the hanging basket; the two ends of the second fixed plate and the third fixed plate are respectively provided with second avoiding holes; the fixed assembly comprises two screw rods and four nuts; the nuts are respectively arranged at one end of the screw rods; one end of the screw rod is connected with one nut through the second avoiding hole of the second fixed plate, and the other end is connected with the other nut through the second avoiding hole of the third fixed plate.

[0012] In another aspect, the application further provides a hanging basket, which comprises the new type counterforce frame for closure construction of a rigid frame bridge side span as described above, and further comprises a hoisting support and an operating platform; one end of the operating platform is connected with the bottom of the second bridge surface, the hoisting support is slidingly connected with the second bridge surface, the hoisting support is connected with the middle part of the operating platform, and the second fixed mechanism is used for connecting with the end of the operating platform away from the second bridge surface.

[0013] As described above, the new type counterforce frame for closure construction of a rigid frame bridge side span and the hanging basket have at least the following beneficial effects: by arranging the first fixed mechanism, the second fixed mechanism and the support plate, the support plate is fixed on the first bridge surface by the first fixed mechanism, and the support plate is connected with the operating platform of the hanging basket by the second fixed mechanism, so that the end of the hanging basket away from the second bridge surface is connected with the first bridge surface, the stress of the cantilever end of the second bridge surface for hoisting the hanging basket is reduced, and thus the use of the hanging basket during the construction of the rigid frame bridge does not cause damage to the bridge surface, and safe construction is ensured, and potential safety hazards are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Fig. 1 shows the structure schematic diagram of a hanging basket according to the application.

[0015] Figure 2 Fig. 2 shows the structure schematic diagram of the first fixed mechanism of a new type counterforce frame for closure construction of a rigid frame bridge side span according to the application.

[0016] Figure 3 Fig. 3 shows the structure schematic diagram of the first L-shaped mounting plate of the first fixed mechanism of a new type counterforce frame for closure construction of a rigid frame bridge side span according to the application.

[0017] Figure 4 Fig. 4 shows the cross-sectional structure schematic diagram of the first fixed mechanism of a new type counterforce frame for closure construction of a rigid frame bridge side span according to the application.

[0018] Element number explanation:

[0019] 1. First fixing mechanism, 11. First L-shaped mounting plate, 111. Containing cavity, 112. Slotted guide, 12. Second L-shaped mounting plate, 13. Telescopic driving part, 14. Limiting part, 15. Mounting block, 151. Sliding block, 16. Limiting plate, 17. First fixing plate, 2. Second fixing mechanism, 21. Second fixing plate, 22. Third fixing plate, 23. Fixing assembly, 231. Screw rod, 232. Nut, 3. Support plate, 10. First bridge surface, 20. Second bridge surface, 30. Hoisting support, 40. Operating platform. DETAILED DESCRIPTION

[0020] The embodiments of the present application will be described in detail by the following specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosed content of the specification.

[0021] Please refer to all the following drawings. It should be noted that the structure, proportion, size, etc. shown in the drawings of the specification are only used to cooperate with the disclosed content of the specification for those skilled in the art to understand and read, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the specification are only for the convenience of clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope of the present application.

[0022] The following embodiments are only for illustration. The various embodiments can be combined, which are not limited to the content shown in the following single embodiment.

[0023] Please refer to Figures 1-4 The present application provides a new type of counterforce frame for rigid frame bridge side span closure construction, comprising: a first fixing mechanism 1, a second fixing mechanism 2 and a support plate 3; the support plate 3 can be a plate-shaped structure made of metal, and the lower side of the support plate 3 abuts against the first bridge surface 10 to increase the contact area with the first bridge surface 10. One end of the support plate 3 is connected with the first fixing mechanism 1, and the other end is connected with the second fixing mechanism 2; the first fixing mechanism 1 is used to fix the support plate 3 on the first bridge surface 10, and the second fixing mechanism 2 is used to fix the hanging basket on the support plate 3;

[0024] The first fixing mechanism 1 comprises two first L-shaped mounting plates 11, two second L-shaped mounting plates 12, two groups of telescopic driving members 13 and two groups of limiting members 14; the first L-shaped mounting plate 11, the second L-shaped mounting plate 12, one group of telescopic driving members 13 and one group of limiting members 14 are arranged in one-to-one correspondence; the short side of the first L-shaped mounting plate 11 is used for being connected with the support plate 3, the long side is used for being connected with the second L-shaped mounting plate 12, and the short side of the second L-shaped mounting plate 12 is used for being connected with the first bridge 10; the fixed end of the telescopic driving member 13 is connected with the short side of the first L-shaped mounting plate 11, and the movable end is connected with the short side of the second L-shaped mounting plate 12; the telescopic driving member 13 is used for changing the interval between the short side of the first L-shaped mounting plate 11 and the short side of the second L-shaped mounting plate 12; and the limiting member 14 is used for fixing the second L-shaped mounting plate 12 on the first L-shaped mounting plate 11.

[0025] Specifically, the short side of the first L-shaped mounting plate 11 and the support plate 3 can be fixedly connected through a screw rod 231 or the like, so that the first L-shaped mounting plate 11 and the support plate 3 can be relatively displaced during use. The width of the support plate 3 can be greater than or equal to the width of the first bridge 10, so that the first L-shaped mounting plate 11 can be connected with the support plate 3. The telescopic driving member 13 can be a telescopic driving element such as a pneumatic cylinder or an electric cylinder, and each group of telescopic driving members 13 can include two. The short side of the first L-shaped mounting plate 11 can be provided with a lug on each side for mounting the telescopic driving member 13, thereby providing a mounting place for the telescopic driving member 13 and ensuring the stability of the telescopic driving member 13 when driving the second L-shaped mounting plate 12 to move.

[0026] During use, the support plate 3 can be placed on the first bridge 10 first, and then the telescopic driving member 13 mounted on the first L-shaped mounting plate 11 is connected with the second L-shaped mounting plate 12. Then, the two first L-shaped plates are mounted on the support plate 3, and the short side of the second L-shaped mounting plate 12 is arranged in a reverse form at the lower end of the first bridge 10. Finally, the second L-shaped mounting plate 12 is moved by the telescopic driving member 13, thereby driving the second L-shaped mounting plate 12 to move, so that the second L-shaped mounting plate 12 abuts against the lower side of the first bridge 10. After the second L-shaped mounting plate 12 abuts against the lower side of the first bridge 10, the limiting member 14 fixes the second L-shaped mounting plate 12 on the first L-shaped mounting plate 11, thereby completing the fixed connection between the support plate 3 and the first bridge 10.

[0027] The long side of the first L-shaped mounting plate 11 is provided with a receiving cavity 111 for accommodating the long side of the second L-shaped mounting plate 12, and opposite two side walls of the receiving cavity 111 are respectively provided with a sliding groove 112; the first fixing mechanism 1 further comprises a mounting block 15 and a limiting plate 16, the mounting block 15 is located in the receiving cavity 111, and opposite two side walls of the receiving cavity are respectively provided with a sliding block 151 for sliding connection with the sliding groove 112; the limiting plate 16 is detachably connected with the long side of the first L-shaped mounting plate 11, for closing the side of the sliding groove 112 away from the short side of the first L-shaped mounting plate 11, so as to limit the mounting block 15 in the receiving cavity 111; the limiting plate 16 is provided with an avoiding cavity for the long side of the second L-shaped mounting plate 12 to pass through, and the long side of the second L-shaped mounting plate 12 passes through the avoiding cavity and is connected with the mounting block 15.

[0028] In this embodiment, by means of the receiving cavity 111, the limiting plate 16 and the mounting block 15, when working at high altitude, the second L-shaped mounting plate 12 and the first L-shaped mounting plate 11 are always in a connected state, preventing the second L-shaped mounting plate 12 from falling from high altitude and causing safety accidents. It can be understood that when the telescopic driving part 13 drives the movement of the second L-shaped mounting plate 12, it drives the long side of the second L-shaped mounting plate 12 to slide in the receiving cavity 111, so as to change the gap between the short sides of the first L-shaped mounting plate 11 and the second L-shaped mounting plate 12.

[0029] The opposite two side walls of the receiving cavity 111 are respectively provided with mounting holes, and the long side of the second L-shaped mounting plate 12 is provided with a plurality of first avoiding holes at intervals; the limiting part 14 passes through the first avoiding hole and the mounting hole to limit the second L-shaped mounting plate 12 on the first L-shaped mounting plate 11. Specifically, the sliding groove 112 can be arranged on the left and right side walls of the receiving cavity 111, and the mounting holes are arranged on the front and rear side walls of the receiving cavity 111. The limiting part 14 can be a limiting structure formed by a screw rod 231 and a nut 232. In use, when the telescopic driving part 13 moves the second L-shaped mounting plate 12 to the position, and aligns the central axes of the first avoiding hole and the mounting hole, then the limiting part 14 passes through the first avoiding hole of the second L-shaped mounting plate 12 and the mounting hole of the receiving cavity 111, and then is connected with the corresponding nut 232, so as to limit the second L-shaped mounting plate 12 in the receiving cavity 111.

[0030] The first fixing mechanism 1 can further include a first fixing plate 17, the upper side of the first fixing plate 17 being used to abut against the lower side of the first bridge floor 10, and the lower side being used to abut against the short side of the second L-shaped mounting plate 12. Through the action of the first fixing plate 17, the support plate 3 can be more stably fixed on the first bridge floor 10. The second fixing mechanism 2 further includes an elastic member (not shown) arranged on the upper side of the first fixing plate 17 and used to abut against the lower side of the first bridge floor 10. The elastic member can be a plate-shaped structure made of elastic material such as rubber, which is used to replace the abutment between the upper side of the first fixing plate 17 and the lower side of the first bridge floor 10, thereby playing a buffering role and preventing the first fixing plate 17 from damaging the first bridge floor 10. In addition, due to the different thicknesses of different first bridge floors 10, when the first avoiding hole and the mounting hole are aligned in use, the upper side of the first fixing plate 17 and the lower side of the first bridge floor 10 are in a non-abutting state, i.e., there is a gap. Through the action of the elastic member, the gap can be filled, and the first fixing plate 17 and the first bridge floor 10 can be ensured to be in an abutting state.

[0031] The second fixing mechanism 2 can include a second fixing plate 21, a third fixing plate 22 and a fixing assembly 23. The lower side of the second fixing plate 21 is used to connect with the upper side of the support plate 3, the upper side of the third fixing plate 22 is used to connect with the bottom of the hanging basket, one end of the fixing assembly 23 is connected with the second fixing plate 21, and the other end is connected with the third fixing plate 22. The second fixing plate 21 and the third fixing plate 22 can be plate-shaped mechanisms made of metal. The second fixing plate 21 and the support plate 3 can be detachably connected through bolts or the like. The second fixing plate 21 can also be integrally formed with the support plate 3, which is not limited in the present embodiment. The third fixing plate 22 is connected with the bottom of the operating platform 40 of the hanging basket, thereby forming a role of lifting the operating platform 40 to prevent the operating platform 40 from shaking.

[0032] The lengths of the second fixing plate 21 and the third fixing plate 22 are greater than the width of the support plate 3 and the hanging basket. The two ends of the second fixing plate 21 and the third fixing plate 22 are respectively provided with second avoiding holes. The fixing assembly 23 includes two screw rods 231 and four nuts 232. The nuts 232 are respectively arranged at one end of the screw rods 231. One end of the screw rod 231 passes through the second avoiding hole of the second fixing plate 21 and is connected with one nut 232, and the other end passes through the second avoiding hole of the third fixing plate 22 and is connected with the other nut 232. The second fixing plate 21 and the third fixing plate 22 are detachably connected through the screw rods 231, and the gap between them can also be adjusted to ensure that the support plate 3 is connected with the operating platform 40 of the hanging basket.

[0033] Please refer to Figure 1In one aspect, the utility model provides a new type counterforce frame for rigid frame bridge side span closure construction, which comprises a first bridge deck 10, a second bridge deck 20, a first fixed mechanism 1, a second fixed mechanism 2 and a counterforce frame 3; the first fixed mechanism 1 is arranged on the first bridge deck 10 and is used for connecting with the second bridge deck 20; the second fixed mechanism 2 is arranged on the second bridge deck 20 and is used for connecting with the first bridge deck 10; the counterforce frame 3 is arranged on the first bridge deck 10 and the second bridge deck 20 and is used for supporting the second bridge deck 20.

[0034] In summary, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

[0035] The above-mentioned embodiments only exemplarily illustrate the principle and effect of the utility model, and are not used for limiting the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art under the condition of not departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A new type of counter-force frame for closure construction of a rigid-frame bridge side span, characterized in that, The utility model relates to a hanging basket fixing device for bridge construction, which comprises a first fixing mechanism, a second fixing mechanism and a support plate. The lower side of the support plate is in abutment with the first bridge deck, one end of the support plate is connected with the first fixing mechanism, and the other end is connected with the second fixing mechanism; the first fixing mechanism is used for fixing the support plate on the first bridge deck, and the second fixing mechanism is used for fixing the hanging basket on the support plate. The first fixing mechanism comprises two first L-shaped mounting plates, two second L-shaped mounting plates, two groups of telescopic driving members and two groups of limiting members; the first L-shaped mounting plate, the second L-shaped mounting plate, one group of telescopic driving members and one group of limiting members are arranged one by one in a corresponding manner; the short side of the first L-shaped mounting plate is used for being connected with the support plate, the long side is used for being connected with the second L-shaped mounting plate, and the short side of the second L-shaped mounting plate is used for being connected with the first bridge deck; the fixed end of the telescopic driving member is connected with the short side of the first L-shaped mounting plate, and the movable end is connected with the short side of the second L-shaped mounting plate; the telescopic driving member is used for changing the interval between the short side of the first L-shaped mounting plate and the short side of the second L-shaped mounting plate; the limiting member is used for fixing the second L-shaped mounting plate on the first L-shaped mounting plate. The long side of the first L-shaped mounting plate is provided with a containing cavity for containing the long side of the second L-shaped mounting plate; opposite two side walls of the containing cavity are respectively provided with a sliding groove; 2. The new reaction frame for closure construction of a rigid frame bridge side span according to claim 1, characterized in that: The first fixing mechanism further comprises a mounting block and a limiting plate; the mounting block is located in the containing cavity, and opposite two side walls of the containing cavity are respectively provided with a sliding block for sliding connection with the sliding groove; the limiting plate is detachably connected with the long side of the first L-shaped mounting plate; the limiting plate is provided with an avoiding cavity for the long side of the second L-shaped mounting plate to pass through; the long side of the second L-shaped mounting plate passes through the avoiding cavity and is connected with the mounting block. Opposite two side walls of the containing cavity are respectively provided with a mounting hole, and the long side of the second L-shaped mounting plate is provided with a plurality of first avoiding holes at intervals; the limiting member passes through the first avoiding hole and the mounting hole to limit the second L-shaped mounting plate on the first L-shaped mounting plate.

3. The new reaction frame for closure construction of a rigid frame bridge side span according to claim 2, characterized in that: The first fixing mechanism further comprises a first fixing plate; the upper side of the first fixing plate is used for abutting against the lower side of the first bridge deck, and the lower side is used for abutting against the short side of the second L-shaped mounting plate.

4. The new type counter-force frame for closure construction of a rigid frame bridge side span according to any one of claims 2-3, characterized in that: The second fixing mechanism further comprises an elastic member; the elastic member is arranged on the upper side of the first fixing plate and is used for abutting against the lower side of the first bridge deck.

5. The new reaction frame for closure construction of a rigid frame bridge side span according to claim 4, characterized in that: The second fixing mechanism comprises a second fixing plate, a third fixing plate and a fixing assembly; 6. The new reaction frame for closure construction of a rigid frame bridge side span according to claim 1, characterized in that: The lower side of the second fixing plate is used for being connected with the upper side of the support plate, the upper side of the third fixing plate is used for being connected with the bottom surface of the hanging basket, one end of the fixing assembly is connected with the second fixing plate, and the other end is connected with the third fixing plate. The lengths of the second fixing plate and the third fixing plate are greater than the widths of the support plate and the hanging basket; 7. The new reaction frame for closure construction of a rigid frame bridge side span according to claim 6, characterized in that: The two ends of the second fixing plate and the third fixing plate are respectively provided with a second avoiding hole; the fixing assembly comprises two screw rods and four nuts. ​ The nut corresponds to one end of the screw rod, and the other end of the screw rod is connected with another nut through the second avoiding hole of the third fixed plate.

8. A hanging basket, characterized by The new counter-force frame for the closure construction of the rigid bridge side span comprises the new counter-force frame for the closure construction of the rigid bridge side span according to any one of claims 1-7, a hoisting support and an operation platform, one end of the operation platform is connected with the bottom of the second bridge surface, the hoisting support is slidingly connected with the second bridge surface, the hoisting support is connected with the middle part of the operation platform, and the second fixed mechanism is used for connecting one end of the operation platform away from the second bridge surface.

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