CN219793683U - Construction equipment for installing steel box girder in complex environment - Google Patents

Abstract

The utility model relates to the technical field of steel box girder construction, in particular to construction equipment for installing a steel box girder in a complex environment, which comprises a support assembly, wherein the support assembly comprises a plurality of support pipes which are vertically arranged and a connecting frame which is fixed between two adjacent support pipes, a frame structure is formed between the support pipes and the connecting frame, the support assembly is at least provided with two groups, a plurality of groups of support assemblies are sequentially connected from bottom to top, the support pipes on the upper layer of support assembly are inserted into the corresponding support pipes on the lower layer of support assembly, and a fixing assembly for fixing the two support pipes is arranged between the two upper and lower adjacent support pipes. The utility model has the advantages of improving a plurality of supporting frames the effect of quick installation and fixation is achieved.

Description

Construction equipment for installing steel box girder in complex environment

Technical Field

The utility model relates to the technical field of steel box girder construction, in particular to construction equipment for installing a steel box girder in a complex environment.

Background

The existing steel box girder, called as a steel plate box girder, is a common structural form of a large-span bridge. Is commonly used on bridges with larger spans, and is called a steel box girder because of the shape of a box. When the steel box girder is erected, large-scale hoisting equipment is usually adopted for hoisting, and then the hoisting equipment is placed at a pre-installation position for carrying out the installation operation of the steel box girder.

In the development of high-speed road network construction in China, the bridge engineering technology plays an extremely important role, and a series of advanced technologies and construction processes, such as swivel bridge erection, floating bridge erection, pushing bridge erection and the like, also appear. In the construction of hoisting steel box girders to bridge, various supporting frames are often adopted to provide temporary support for the steel box girders, the existing supporting frames for supporting the steel box girders are formed by welding and fixing vertical round steel pipes and reinforced steel pipes, and the steel box girders are erected according to the requirements at different height positions, so that multiple groups of supporting frames are spliced and combined to achieve the purpose of supporting the steel box girders.

The existing support frame is fixed by screws, so that the fixing mode is single, and a great deal of manpower is required to be wasted in the process of installation and disassembly.

Disclosure of Invention

In order to improve the efficiency of installation and fixation among a plurality of supporting frames, the utility model provides construction equipment for installing a steel box girder in a complex environment.

The utility model provides construction equipment for installing a steel box girder in a complex environment, which adopts the following technical scheme:

the utility model provides a construction equipment for steel case roof beam installation under complex environment, includes supporting component, supporting component includes the stay tube of many vertical settings and fixes the link between two adjacent stay tubes, many constitute frame construction between stay tube and the link, supporting component is provided with two sets of at least, and multiunit supporting component is by supreme setting of connecting gradually down, upper strata stay tube grafting on the supporting component is inside the stay tube that corresponds on lower floor supporting component, is provided with the fixed subassembly that fixes two stay tubes between two upper and lower adjacent stay tubes.

Through adopting above-mentioned technical scheme, when the supporting equipment of installation support steel case roof beam, upper and lower adjacent two stay tubes are connected through the mode of pegging graft each other, and after upper and lower adjacent two stay tubes pegged graft, the fixed subassembly that the rethread set up carries out quick fixed to improved quick installation between two adjacent groups of supporting component and fixed, improved on-the-spot efficiency of construction.

Optionally, sliding connection between two upper and lower adjacent stay tubes, fixed subassembly is including rotating the fixed block of connection on the lower floor's stay tube, has offered the jack of evenly laying along its length direction on the pipe wall of upper stay tube, the one end grafting cooperation that its rotation point was kept away from to the fixed block is in the jack, the fixed block keeps the level under initial condition, and the position department that just is located the fixed block on the lower floor's stay tube is provided with the locating part that restriction fixed block rotated downwards.

By adopting the technical scheme, the two support pipes which are adjacent up and down are in a sliding splicing mode and are matched with the fixed component, so that the vertical adjustment of the upper layer support component on the lower layer support component can be realized, the equipment for supporting the steel box girder can be suitable for supporting the steel box girder at different height positions, and the utilization rate of the steel box girder equipment is improved; the fixed block and the limiting piece which are mutually matched are used for fixing the upper support tube and the lower support tube in a semi-automatic mode, so that the operation is more convenient and quick, and the need of excessive manual intervention operation by workers is avoided.

Optionally, the lower floor the mouth of pipe department of upper end of stay tube has seted up the installing port, the fixed block rotates to be connected in installing port department, the fixed block comprises diaphragm and riser and is the L type, the junction of diaphragm and riser is the rotation point of fixed block, the tip grafting that the riser was kept away from to the diaphragm is mated in the jack, the locating part is located the riser and keeps away from one side of diaphragm, and the riser can support to on the locating part.

Through adopting above-mentioned technical scheme, when fixing upper supporting tube, the diaphragm can peg graft in the jack, makes upper supporting tube compress tightly on the diaphragm to through the joint of riser with locating part tightly, realize the fixed to upper supporting tube, simple structure is compact, and fixed effectual, convenient follow-up position to upper supporting tube is adjusted.

Optionally, the weight of riser is greater than the weight of diaphragm, and upper and lower adjacent two stay tubes are after the slip is accomplished, the diaphragm tip can rotate the grafting in the jack.

Through adopting above-mentioned technical scheme, when the position of upper supporting tube on lower floor's stay tube carries out the regulation in-process, make the diaphragm keep away from on the tip of riser can support the pipe wall of upper supporting tube all the time, after the mutual position adjustment of upper and lower adjacent stay tube is accomplished, the heavier riser of weight can make the diaphragm tip quick peg graft in the jack that corresponds, realizes the fixed to two spinal branch stay tubes.

Optionally, the locating part includes in the installing port department and sets up the gag lever post on the stay tube, the riser is kept away from the side butt of diaphragm and is connected on the gag lever post.

Through adopting above-mentioned technical scheme, the gag lever post sound construction that sets up avoids needing the staff to carry out manual operation, makes the riser directly support tightly to the gag lever post can.

Optionally, the spout has been seted up to the symmetry on the stay tube at gag lever post both ends, the both ends slip setting of gag lever post is in the spout, install spacing spring in the spout, spacing spring one end is fixed with the stay tube, and another end is fixed with the gag lever post.

By adopting the technical scheme, when the upper support pipe is required to be inserted into the lower support pipe, the limiting rod is pulled downwards through the stay rope or other external force, the limiting spring is compressed, the transverse plate can rotate downwards through the upper support pipe which is inserted downwards, the vertical plate and the limiting rod are separated from limit, after the upper support pipe is inserted, under the action of gravity of the vertical plate, the end part of the transverse plate is inserted into the insertion hole, and the limiting rod is slid to the position limiting the vertical plate; the limiting spring that sets up can make the gag lever post reset automatically, realizes spacing the riser from new, avoids needing the manual position of gag lever post to reset of staff, has improved work efficiency, and when the riser did not resume vertical state, the limiting spring just can't normally reset the gag lever post.

Optionally, the junction of diaphragm and riser is fixed wears to be equipped with the pivot, the both ends of pivot are connected with the stay tube rotation of installing port department, the pivot is the damping axle.

Through adopting above-mentioned technical scheme, the damping axle of setting can make diaphragm and riser quick resume initial condition, avoids appearing the diaphragm and resets untimely, and the diaphragm tip can not pinpoint the condition in the jack.

Optionally, a control assembly is arranged between the upper layer supporting assembly and the lower layer supporting assembly, and the control assembly comprises a hydraulic cylinder for controlling the upper layer supporting assembly to move vertically.

Through adopting above-mentioned technical scheme, the hydraulic cylinder that sets up can initiatively adjust the distance between two sets of supporting components that are adjacent from top to bottom to make supporting component can adapt to in the operational environment of steel case roof beam different high position, improved supporting component's utilization ratio, and when multiunit supporting component supports steel case roof beam, hydraulic cylinder can play the guard action, avoids appearing steel case roof beam heavier, crushes by pressure the condition of fixed subassembly.

Optionally, the upper strata the stay tube upper end on the supporting component is installed adjusting component, adjusting component is including fixing the fixed platform and cover the regulation platform of establishing on fixed platform in many stay tube upper ends, the regulation platform slides and sets up on fixed platform, be provided with the regulating part that is used for adjusting regulation platform on the regulation platform.

Through adopting above-mentioned technical scheme, when hoist and mount steel case roof beam, can't once only hoist and mount steel case roof beam to the exact position department, can place steel case roof beam on adjusting platform earlier, through the position of control adjusting platform on fixed platform, make steel case roof beam remove exact position department gradually.

Optionally, each supporting tube on the supporting component at the lower layer is provided with a reinforcing component, and the reinforcing component is used for keeping the stability of the multi-layer supporting component.

Through adopting above-mentioned technical scheme, the reinforcement subassembly that sets up can make the multiunit supporting component use that can be quick in the job site, has improved work efficiency, avoids the construction site pouring concrete platform that needs again, is installing fixedly to supporting component.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the multiple groups of support assemblies can be quickly inserted and fixed, the multiple groups of support assemblies can be selected according to actual requirements of construction sites, the rapid installation and fixation are performed, and the connection effect is relatively better through the support assemblies which are inserted and connected;

2. the upper supporting tube and the lower supporting tube are arranged in a sliding manner, and are matched with the control assembly, so that the positions of the upper supporting assembly and the lower supporting assembly can be adjusted, and under the condition that a small error exists in supporting the steel box girder, the upper supporting assembly is adjusted in height through the control assembly, and the upper supporting assembly is directly supported on the steel box girder, so that the need of installing another supporting assembly is avoided, and the steel box girder is supported.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a schematic diagram of a securing assembly embodying an embodiment of the present utility model;

fig. 4 is a schematic diagram of an embodiment of the utility model embodying an adjustment assembly.

Reference numerals illustrate: 1. a support assembly; 11. a support tube; 111. a jack; 112. a chute; 113. a clamping hole; 12. a connecting frame; 2. a fixing assembly; 21. a fixed block; 211. a cross plate; 212. a riser; 22. a rotating shaft; 23. a limit rod; 24. a limit spring; 3. a hydraulic cylinder; 4. an adjustment assembly; 41. a fixed platform; 42. adjusting a platform; 43. a ball; 44. a screw; 45. a mounting hole; 46. a mounting block; 5. a reinforcement assembly; 51. a main reinforcing rod; 52. and a secondary reinforcing rod.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-4.

The embodiment of the utility model discloses construction equipment for installing a steel box girder in a complex environment.

Referring to fig. 1, a construction apparatus for steel box girder installation in a complex environment includes a support assembly 1 vertically disposed below a position of a steel box girder to be installed, a lower support of the support assembly 1 being disposed on the ground, and an upper support of the support assembly 1 being supported on the steel box girder.

The support assembly 1 comprises a plurality of support pipes 11 which are vertically arranged, the plurality of support pipes 11 are fixed through connecting frames 12 which are arranged, and the plurality of support pipes 11 are connected through the connecting frames 12 which are arranged to form a frame structure, so that the support assembly 1 is more stable, the connecting frames 12 are composed of a plurality of channel steels, the two adjacent support pipes 11 are fixedly connected with the channel steels which are horizontally arranged and the channel steels which are obliquely arranged, a plurality of cross fixed channel steels are arranged in the position which is surrounded by the plurality of support pipes 11 and is close to the upper end and the position which is close to the lower end, and the plurality of support pipes 11 are more firmly connected through the plurality of channel steels which are arranged; in the embodiment of the utility model, the support assemblies 1 are at least provided with two groups, after the support assemblies 1 are provided with a plurality of groups, the plurality of groups of support assemblies 1 are sequentially installed and connected from bottom to top, so that the support assemblies 1 on the upper layer can be installed on the support assemblies 1 on the lower layer, and the support tubes 11 in the support assemblies 1 on the upper layer can be inserted and matched in the support tubes 11 of the support assemblies 1 on the lower layer, thereby realizing stable connection among the support assemblies 1 on the plurality of layers, and the support tubes 11 on the support assemblies 1 on the upper layer and the support tubes 11 of the support assemblies 1 on the lower layer can relatively slide, thereby adjusting the relative positions between the support assemblies 1 on the upper layer and the support assemblies 1 on the lower layer, and realizing support of steel box girders at different height positions.

Referring to fig. 1, 2 and 3, fixing components 2 are arranged between support pipes 11 which are adjacent up and down and are correspondingly spliced, mounting holes are formed in the pipe wall of the lower support pipe 11 at the pipe orifice of the upper end, the fixing components 2 comprise fixing blocks 21 which are rotatably connected at the mounting holes, the fixing blocks 21 are L-shaped, each fixing block 21 consists of a transverse plate 211 and a vertical plate 212, a rotating shaft 22 is fixedly penetrated at the connecting position of each transverse plate 211 and each vertical plate 212, two ends of each rotating shaft 22 are rotatably connected with the pipe wall of the support pipe 11 at two sides of the mounting hole, the length of each vertical plate 212 is larger than that of each transverse plate 211, the weight of each vertical plate 212 is larger than that of each transverse plate 211, so that the vertical plates 212 are always kept in a vertical state in an initial state when the fixing components 2 are not used for fixing the support pipes 11 at the two sides of the upper and lower support pipes 11, the transverse plates 211 are always kept in a horizontal state, and the transverse plates 211 are arranged along the diameter direction of the support pipes 11; a plurality of insertion holes 111 are uniformly formed in the pipe wall of the upper layer support pipe 11 along the length direction of the upper layer support pipe, when the upper layer support pipe 11 is inserted into the lower layer support pipe 11, the upper layer support pipe 11 is abutted to the transverse plate 211 and drives the transverse plate 211 and the vertical plate 212 to rotate, and after the height of the upper layer support pipe 11 is adjusted on the lower layer support pipe 11, one end, far away from the vertical plate 212, of the transverse plate 211 can be inserted into the insertion holes 111 under the action of gravity of the vertical plate 212; in order to ensure that the fixing block 21 can fix the upper support tube 11 and the lower support tube 11, a limiting piece is arranged on the tube wall of the lower support tube 11 and located at the position of the mounting opening, the limiting piece is located on one side of the vertical plate 212 away from the transverse plate 211, the vertical plate 212 can be abutted to the limiting piece, when the weight of the upper support tube 11 is pressed on the transverse plate 211, the vertical plate 212 can be abutted to the limiting piece, so that the transverse plate 211 is prevented from rotating downwards, the upper support tube 11 is fixed on the lower support tube 11, and when the upper support tube 11 is required to be plugged on the lower support tube 11 through the limiting piece, the transverse plate 211 cannot rotate downwards due to the limiting piece, the transverse plate 211 needs to be manually rotated upwards, and the upper support tube 11 can be plugged inside the lower support tube 11.

The limiting piece comprises a limiting rod 23 arranged at the mounting opening, the side surface of the vertical plate 212, far away from the transverse plate 211, can be abutted against the limiting rod 23, sliding grooves 112 are symmetrically formed in supporting pipes 11 at two ends of the limiting rod 23, the length direction of the sliding grooves 112 is the same as that of the supporting pipes 11, two ends of the limiting rod 23 are in sliding fit in the sliding grooves 112, when the upper supporting pipe 11 is required to be inserted into the lower supporting pipe 11, the limiting rod 23 is vertically slid, the vertical plate 212 is not abutted against the limiting rod 23, the transverse plate 211 can rotate downwards, when the upper supporting pipe 11 is mounted, the transverse plate 211 can be restored to a horizontal state, the end parts of the transverse plate 211 can be inserted into the insertion holes 111, and finally the limiting rod 23 is slid to a position for limiting the vertical plate 212; the limiting springs 24 are arranged in the two sliding grooves 112, the limiting springs 24 are vertically arranged in the sliding grooves 112, the upper ends of the limiting springs 24 are fixed with the limiting rods 23, the lower ends of the limiting springs are fixed with the supporting tubes 11, when the transverse plates 211 rotate downwards to enable the upper supporting tubes 11 to be mounted on the lower supporting tubes 11, the end parts of the transverse plates 211 are inserted into the insertion holes 111, the vertical plates 212 are restored to the vertical state, and under the action of the limiting springs 24, the limiting rods 23 can be restored to the state of limiting the vertical plates 212, so that the need of manual restoration of the limiting rods 23 to the initial state by staff is avoided; in addition, the worker can install a pull rope on the limit lever 23, and when the upper support pipe 11 is installed on the lower support pipe 11, the worker can directly pull the pull rope on the ground, so that the limit lever 23 slides downwards and compresses the limit spring 24.

Referring to fig. 1, fig. 2 and fig. 3, further, the rotating shaft 22 penetrating through the joint of the transverse plate 211 and the vertical plate 212 is a damping shaft, when the upper support tube 11 is inserted into the lower support tube 11, the transverse plate 211 is driven to rotate, after the upper support tube 11 is installed in place, under the action of the damping shaft, the transverse plate 211 can be quickly restored to a horizontal state, so that the end part of the transverse plate 211 can be inserted into the insertion hole 111, and the condition that the transverse plate 211 is not reset in time is avoided.

A control assembly is arranged between the upper layer support assembly 1 and the lower layer support assembly 1, the control assembly can adjust the position of the upper layer support assembly 1 on the lower layer support assembly 1, the control assembly comprises a hydraulic cylinder 3 arranged between the lower end of the upper layer support assembly 1 and the upper end of the lower layer support assembly 1, the lower end of the hydraulic cylinder 3 is fixed on a connecting frame 12 in the lower layer support assembly 1, the upper end of the hydraulic cylinder 3 is connected with the connecting frame 12 in the upper layer support assembly 1, and the upper layer support assembly 1 can be jacked up through the action of the hydraulic cylinder 3; when supporting the steel box girder, because the height position that the steel box girder was located is different, the height of the support frame that needs also is different, and the control assembly who sets up can be to the upper supporting component 1 highly adjusting on lower floor's supporting component 1 to make supporting component 1 can adapt to in the operation environment of steel box girder different height position, improved supporting component 1's utilization ratio.

Referring to fig. 1, 2 and 4, an adjusting assembly 4 is arranged at the upper ends of a plurality of support tubes 11 of an upper layer support assembly 1, the adjusting assembly 4 comprises a fixed platform 41 fixed at the upper ends of the plurality of support tubes 11, the fixed platform 41 is of a rectangular plate-shaped structure, an adjusting platform 42 matched with each other is covered on the fixed platform 41, a plurality of balls 43 are rotationally connected to the upper surface of the fixed platform 41, the balls 43 are uniformly distributed on the fixed platform 41 in a rectangular array, the balls 43 are rotationally embedded on the upper surface of the fixed platform 41, the adjusting platform 42 is of a box structure, the adjusting platform 42 can be buckled on the fixed platform 41, and the adjusting platform 42 is in sliding fit with the fixed platform 41 through the plurality of balls 43; the adjusting piece is arranged on the side face of the adjusting platform 42, the adjusting piece comprises an X-direction adjusting piece and a Y-direction adjusting piece, the X-direction adjusting piece and the Y-direction adjusting piece respectively comprise a pair of screws 44 with the same structure, the screws 44 penetrate through the side face of the adjusting platform 42 and are abutted to the side face of the fixed platform 41, the screws 44 are in threaded connection with the adjusting platform 42, mounting holes 45 are formed in positions, where the two screws 44 penetrate through the adjusting platform 42, of the X-direction adjusting piece, the length direction of the mounting holes 45 is the same as the length direction of the screws 44 on the Y-direction adjusting piece, mounting blocks 46 are slidably arranged in the mounting holes 45, the screws 44 on the X-direction adjusting piece penetrate through the mounting blocks 46, the screws 44 are in threaded connection with the mounting blocks 46, the screws 44 can move along the X-direction adjusting piece and the Y-direction adjusting piece in the X-direction, when the steel box girder is supported, the steel box girder is placed on the adjusting platform 42, the steel box girder cannot be lifted at one time, the positions, which are designed to be placed on the steel box girder can not be accurately placed, and the position of the steel box girder can be accurately placed on the adjusting platform can be prevented from being placed on the mounting platform in the proper positions when the steel box girder is required to be lifted, and the steel box girder can be placed on the position by the accurate position.

Referring to fig. 1, fig. 2 and fig. 4, all be provided with the reinforcement subassembly 5 on the pipe wall of every stay tube 11 of lower floor's support subassembly 1, the reinforcement subassembly 5 is including articulated main reinforcement pole 51 that sets up at the stay tube 11 lower extreme and articulated vice reinforcement pole 52 that sets up on main reinforcement pole 51, the one end of main reinforcement pole 51 is articulated with the lower extreme of stay tube 11, make main reinforcement pole 51 can upwards rotate, the one end of vice reinforcement pole 52 is articulated with the tip that main reinforcement pole 51 kept away from stay tube 11, vice reinforcement pole 52 is telescopic link structure, when vice reinforcement pole 52 extension or shrink can be fixed through the bolt structure that sets up, the tip that main reinforcement pole 51 was kept away from to vice reinforcement pole 52 can the joint on the pipe wall of stay tube 11, a plurality of joint holes 113 that set up along its length direction are seted up on the stay tube 11 pipe wall of lower floor's support subassembly 1, the tip of vice reinforcement pole 52 can the joint cooperation to joint hole 113, before supporting the steel case roof beam, the topography of support position is followed to the staff, open main reinforcement pole 51 downwards, many main reinforcement poles are towards four directions, can form the joint hole 113, then can be fixed by the support pole 1, can be realized by setting up the support assembly, the stable construction platform can be put forward, the construction platform can be put forward, and the construction platform can be installed, the construction can be stable, the construction can be carried out, and the construction can be carried out, the stable assembly is stable, and can be mounted on the support platform can be mounted, and can be fixed on the support subassembly 1, can be mounted, and can be fixed on the site, can be site can be mounted to the support can be mounted, and can be used to the support can be used 1, and can be used to the construction, and can be used to the construction.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (10)

1. A construction equipment that is used for steel case roof beam to install under complex environment, its characterized in that: including supporting component (1), supporting component (1) include many stay tubes (11) of vertical setting and fix link (12) between two adjacent stay tubes (11), many constitute frame construction between stay tube (11) and link (12), supporting component (1) are provided with two sets of at least, multiunit supporting component (1) are by supreme the connecting gradually setting down, upper strata stay tube (11) on supporting component (1) are pegged graft inside stay tube (11) that correspond on lower floor's supporting component (1), are provided with between two upper and lower adjacent stay tubes (11) and fix fixed subassembly (2) of two stay tubes (11).

2. A construction equipment for steel box girder installation in complex environments according to claim 1, wherein: the fixed assembly (2) comprises fixed blocks (21) which are rotationally connected to the lower-layer support tubes (11), insertion holes (111) which are uniformly distributed along the length direction of the upper-layer support tubes (11) are formed in the tube wall of the upper-layer support tubes (11), one ends of the fixed blocks (21) away from the rotation points of the fixed blocks are inserted and matched in the insertion holes (111), the fixed blocks (21) are kept horizontal in an initial state, and limiting pieces which limit the fixed blocks (21) to rotate downwards are arranged on the lower-layer support tubes (11) and located at the positions of the fixed blocks (21).

3. A construction equipment for steel box girder installation in complex environments according to claim 2, characterized in that: the lower floor the mouth of pipe department of upper end of stay tube (11) has seted up the installing port, fixed block (21) rotate and connect in installing port department, fixed block (21) comprise diaphragm (211) and riser (212) and are L type, the junction of diaphragm (211) and riser (212) is the rotation point of fixed block (21), the tip grafting of diaphragm (211) keeping away from riser (212) is mated in jack (111), the locating part is located one side that diaphragm (211) were kept away from to riser (212), and riser (212) can the butt on the locating part.

4. A construction equipment for steel box girder installation in a complex environment according to claim 3, wherein: the weight of the vertical plate (212) is larger than that of the transverse plate (211), and after the upper and lower adjacent supporting tubes (11) slide, the end part of the transverse plate (211) can be rotatably inserted into the insertion hole (111).

5. A construction equipment for steel box girder installation in a complex environment according to claim 3, wherein: the limiting piece comprises a limiting rod (23) arranged at the mounting opening and on the supporting tube (11), and the side surface, far away from the transverse plate (211), of the vertical plate (212) is abutted to the limiting rod (23).

6. A construction equipment for steel box girder installation in complex environments according to claim 5, wherein: the support pipes (11) at two ends of the limiting rod (23) are symmetrically provided with sliding grooves (112), two ends of the limiting rod (23) are slidably arranged in the sliding grooves (112), limiting springs (24) are arranged in the sliding grooves (112), one ends of the limiting springs (24) are fixed with the support pipes (11), and the other ends of the limiting springs are fixed with the limiting rod (23).

7. A construction equipment for steel box girder installation in a complex environment according to claim 3, wherein: the connecting part of the transverse plate (211) and the vertical plate (212) is fixedly provided with a rotating shaft (22) in a penetrating mode, two ends of the rotating shaft (22) are rotatably connected with the supporting tube (11) at the mounting opening, and the rotating shaft (22) is a damping shaft.

8. A construction equipment for steel box girder installation in complex environments according to claim 1, wherein: a control assembly is arranged between the upper supporting assembly (1) and the lower supporting assembly (1), and the control assembly comprises a hydraulic cylinder (3) for controlling the upper supporting assembly (1) to move vertically.

9. A construction equipment for steel box girder installation in complex environments according to claim 1, wherein: the upper layer stay tube (11) upper end on supporting component (1) is installed and is adjusted subassembly (4), adjust subassembly (4) including fixed platform (41) and cover of fixing on fixed platform (41) of many stay tubes (11) upper end and establish adjustment platform (42), adjustment platform (42) slip sets up on fixed platform (41), be provided with the regulating part that is used for adjusting adjustment platform (42) on adjustment platform (42).

10. A construction equipment for steel box girder installation in complex environments according to claim 1, wherein: and the support pipes (11) on the lower layer of the support assembly (1) are provided with reinforcing assemblies (5), and the reinforcing assemblies (5) are used for keeping the stability of the multi-layer support assembly (1).