CN217322533U - Intelligent weight shifting device - Google Patents

Abstract

The application provides an intelligent weight shifting device, which comprises a sliding support, a sliding trolley and a traction mechanism; the sliding support comprises an underwater sliding support and a land sliding support which are connected with each other, the underwater sliding support extends along the bridge direction and comprises a slideway steel pipe pile and a first slideway beam, the slideway steel pipe pile is arranged along a preset path of the first slideway beam, the land sliding support comprises a second slideway beam, and the first slideway beam is connected with the second slideway beam; the traction mechanism is arranged at the end part of the sliding support and is used for drawing the sliding trolley to move along the sliding support so as to transport the bridge construction member; the dolly that slides includes the little tank of crawler-type transport, is equipped with the transportation flat board on the little tank of crawler-type transport. The transportation of the bridge construction parts is realized through the combination of the underwater sliding support and the land sliding support, so that the water transport tools such as barges and floating cranes can be quickly unloaded, the channel occupation time is reduced, and the normal operation of other shipping is ensured.

Description

Intelligent weight shifting device

Technical Field

The application relates to the field of bridge construction, in particular to an intelligent weight shifting device.

Background

In modern society, bridges play an increasingly important role, and not only need to be bridged to pass through places such as crossing water areas (rivers and the like) and ditches in the prior art, but also play an important role in three-dimensional traffic in cities. The construction of the bridge usually adopts a water transportation mode to transport the building parts of the bridge, so a barge, a floating crane and other water transportation tools are needed, a period of time is needed for transporting the bridge building parts from the water transportation tools to a construction site every time, the long-time transportation leads to overlong channel occupation time of the water transportation tools, the normal use of the channel is influenced, and the bridge building parts after ship unloading need other water transportation tools to be transported to the construction site, so the transportation process is complicated, and the construction efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a make things convenient for intelligent heavy object shift unit of transportation bridge structures piece.

In order to achieve the above object, the present application provides the following technical solutions:

an intelligent weight shifting device comprises a sliding support, a sliding trolley and a traction mechanism;

the sliding support comprises an underwater sliding support and a land sliding support which are connected with each other, the underwater sliding support extends along the bridge direction and comprises a slideway steel pipe pile and a first slideway beam, the slideway steel pipe pile is arranged along a preset path of the first slideway beam, the land sliding support comprises a second slideway beam, and the first slideway beam is connected with the second slideway beam;

the traction mechanism is arranged at the end part of the sliding support and used for drawing the sliding trolley to move along the sliding support so as to transport bridge construction members, the traction mechanism comprises a winch and steel wire ropes used for being connected with a transport flat plate, and at least two groups of traction mechanisms are arranged in the same direction;

the sliding trolley comprises a crawler-type carrying small tank, and a transporting flat plate is arranged on the crawler-type carrying small tank.

Further setting: the slide steel-pipe pile sets up two sets ofly along the cross bridge to, every group the slide steel-pipe pile is equipped with two rows of slide steel-pipe piles that extend along the bridge, and two rows of every group be equipped with the slide spandrel girder that many one-to-one connections between the slide steel-pipe pile, the slide spandrel girder is extended along the cross bridge, first slide roof beam lay in on the slide spandrel girder.

Further setting: the land sliding support comprises a vertical sliding mechanism and a horizontal sliding mechanism which are vertically crossed, the vertical sliding mechanism extends along the forward bridge direction and is in butt joint with the underwater sliding support, the horizontal sliding mechanism extends along the horizontal bridge direction, the horizontal sliding mechanism is positioned on one side, close to the cable tower, of the vertical sliding mechanism, and a lifting mechanism used for transferring a bridge construction piece on the vertical sliding mechanism to the horizontal sliding mechanism is arranged at the crossed position of the vertical sliding mechanism and the horizontal sliding mechanism.

Further setting: the longitudinal sliding mechanism comprises a second slide beam, the transverse sliding mechanism comprises a third slide beam which is vertically crossed with the second slide beam, and an expansion foundation which is arranged along the length direction of the third slide beam is arranged at the bottom of the third slide beam.

Further setting: the lifting mechanism comprises a hydraulic jack.

Further setting: the sliding support is positioned at the river embankment and is provided with an embankment staggered track arrangement structure.

Compared with the prior art, the scheme of the application has the following advantages:

1. the intelligent weight shifting device realizes transportation of bridge construction members through combination of the underwater sliding support and the land sliding support, can enable water transport tools such as barges and floating cranes to unload quickly, reduces the occupation time of a channel, and ensures normal operation of other shipping.

2. The utility model provides a support that slides on land of intelligent heavy object shift unit includes vertical glide machanism and horizontal intelligent heavy object shift unit, utilizes vertical intelligent heavy object shift unit to transport bridge structures to the crossing department between them, transports to the column below by horizontal intelligent heavy object shift unit again to the workman hoists the construction, and the transportation is convenient.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an intelligent weight shifting device in the present application;

FIG. 2 is a schematic diagram of the underwater sliding support used for transporting the steel tower segment and the steel beam segment in the application;

FIG. 3 is a schematic view of the use of the underwater sliding support for transporting steel box girder segments in the present application;

FIG. 4 is a schematic view of an embankment staggered track arrangement according to the present application;

FIG. 5 is a schematic view of an assembly bracket of a large-tonnage steel-concrete combined beam of a cable-stayed bridge cable tower in the application;

fig. 6 is a schematic diagram of an assembling sliding support of a large-tonnage steel cross beam of a cable-stayed bridge cable tower in the application.

In the figure, 1, a sliding bracket; 11. a support slipping in water; 111. a slideway steel pipe pile; 112. a first slideway beam; 113. a slideway spandrel girder; 114. a slideway diagonal brace; 12. a land sliding support; 121. expanding the foundation; 122. a second slideway beam; 123. a foundation spandrel girder; 124. a third slideway beam; 13. the embankment is in a staggered track arrangement structure; 131. a concrete structure; 2. a sliding trolley; 2. the splicing support comprises a splicing support of a large-tonnage steel-concrete combined beam of a cable-stayed bridge cable tower; 211. sliding the track pile; 212. bearing the steel pipe pile; 22. supporting a pile top bearing beam; 23. sliding the track beam; 24. a bracket longitudinal spandrel girder; 25. bracing; 26. a lower beam temporary buttress; 27. expanding the foundation by a bracket; 3. assembling and sliding supports of large-tonnage steel cross beams of the cable-stayed bridge cable tower; 31. supporting the steel pipe pile; 32. supporting a pile top bearing beam; 33. a bailey spandrel girder; 34. a distribution beam; 35. and (5) temporary buttresses.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

Referring to fig. 1, aiming at the construction of a double-tower double-cable-side semi-floating body system hybrid beam cable-stayed bridge, the application provides an intelligent weight shifting device and a multifunctional bracket for a steel beam of a cable-stayed bridge, so as to complete the sliding and installation in place of a steel tower column, the steel beam and a steel box beam, effectively improve the construction efficiency and reduce the occupation time of a channel.

It should be noted that, the cable-stayed bridge constructed in the present application adopts an H-shaped primary-secondary tower, the cable tower includes two towers and three cross beams disposed between the towers, each tower of the cable tower is divided into 30 sections, the lower cross beam is a steel-concrete composite structure, the lower cross beam can be divided into 6 sections, the middle and upper cross beams are both steel structures, the middle cross beam is divided into 7 sections, and the upper cross beam is divided into 6 sections. In addition, the main beam of the cable-stayed bridge spans across a water channel and a flood control embankment.

Please refer to fig. 1 to 3, the present application utilizes the intelligent weight shifting device to transport the steel tower segment, the steel beam segment and the steel box girder segment to the site to be constructed, which facilitates the construction. The intelligent heavy object shifting device comprises a sliding support 1, a sliding trolley 2 and a traction mechanism for drawing the sliding trolley 2 along the sliding support 1, wherein the sliding support 1 comprises a water sliding support 111 and a land sliding support 121 which are connected, and the main bridge of the cable-stayed bridge of the embodiment spans a water channel and a flood control levee, the arrangement of the water sliding support 111 can reduce the occupation of a navigation channel and the influence on a river bank and the original landform during the ship unloading of a bridge construction member, and meanwhile, the transportation speed and the efficiency of the bridge construction member can be improved.

The underwater sliding support 111 extends along the bridge direction and comprises a slideway steel pipe pile 111 inserted into water and a first slideway beam 112, wherein the slideway steel pipe pile 111 is provided with a plurality of steel pipe piles and is arranged along a preset path of the first slideway beam 112. Meanwhile, in this embodiment, two sets of slide steel pipe piles 111 and first slide beams 112 are arranged along the bridge-following direction, two rows of the slide steel pipe piles 111 are arranged in each set, slide bearing beams 113 connected in a one-to-one correspondence manner are arranged at the tops of the two rows of the slide steel pipe piles 111 in each set, and the first slide beams 112 are arranged on the slide bearing beams 113, so that the load transported on the first slide beams 112 is distributed to the two slide steel pipe piles 111 connected to the slide bearing beams 113 through the slide bearing beams 113.

Specifically, for the transportation of the steel tower segment and the steel beam segment, two rows of first slideway beams 112 are arranged in each group of the embodiment, and the first slideway beams 112 support the steel tower segment and the steel beam segment, so that the normal transportation of the steel tower segment and the steel beam segment can be ensured, and the two groups of first slideway beams 112 can be transported synchronously. And to the longer steel box girder segment section of length, every group first slide roof beam 112 can set up one row, utilizes two sets of single row first slide roof beam 112 supports in order to carry the both ends of steel box girder, satisfies the transportation of the longer steel box girder segment section of length when can reducing shaped steel use. The different combination modes of the slide way beams in the intelligent weight shifting device can be selected by construction workers according to the length of the bridge construction member to be transported, and the construction applicability is high.

Preferably, the steel pipe pile of the present application employs

The length of the single steel pipe is 12m, the steel pipe can be processed by pile extension or cutting at the position of the steel pipe pile which does not meet the standard height, and the steel pipe pile is vibrated by adopting a DZ135 vibration pile.

When the underwater sliding support 111 is erected, a trestle (not shown) can be constructed between the preset paths of the two groups of steel pipe piles, so that the underwater sliding support 111 can be constructed conveniently. The width of the trestle of the embodiment is set to 9m, adopting

The steel pipe as steel-pipe pile, and the landing stage is along horizontal bridge to arranging three rows of steel-pipe pile altogether, and three rows the horizontal interval of steel-pipe pile is 3m, and the longitudinal interval of two adjacent steel-pipe piles of every row of steel-pipe pile is 7 m. Meanwhile, two adjacent steel pipe piles adopt

The steel pipes are connected in parallel, a trestle pile top bearing beam and a trestle longitudinal bearing beam are arranged on the pile top of the steel pipe pile, the trestle pile top bearing beam and the trestle longitudinal bearing beam are both located in I145a section steel, then I122a section steel is arranged on the trestle longitudinal bearing beam to serve as distribution quantity, and finally a pattern steel plate of 1cm is laid. The trestle of this embodiment still adopts "fishing method" to carry out the construction, and fishing method construction usually is by hoisting equipment such as crawler crane cooperation vibratory hammer vibration pile sinking, and hoisting equipment installs simultaneously on the stakeThe structure of the part is a working method for construction from the bank to the water one by one. The constructed trestle can be used as a construction platform for building the slideway steel pipe piles 111 of the underwater sliding support 111 and laying the slideway beams, when the trestle is used for constructing the underwater sliding support 111, firstly, two rows of slideway steel pipe piles 111 close to the embankment and arranged along the transverse bridge direction are inserted and driven on the trestle by adopting a crawler crane, the track beams are laid, then, the construction of the underwater sliding support 111 is carried out from the embankment to the water according to the step of constructing two rows of slideway steel pipe piles 111 arranged along the transverse bridge direction each time, and the track beams constructed each time are butted. The construction of the two sets of slide steel pipe piles 111 of the underwater sliding support 111 can be performed separately or synchronously.

In order to ensure the vibration of the slideway steel pipe pile 111 to set the downward verticality, a steel pipe pile vibration guide frame (not shown in the figure) can be processed and assisted when the slideway steel pipe pile 111 is inserted and driven, the slideway bearing beam 113 can be placed in alignment with the slideway steel pipe pile 111, and then the normal stress of the slideway bearing beam 113 and the slideway steel pipe pile 111 is ensured when a bridge construction member is transported.

The land sliding support 121 comprises an enlarged foundation 121 and a plurality of second slideway beams 122, the enlarged foundation 121 is arranged along a preset path of the second slideway beams 122, the enlarged foundation 121 and the second slideway beams 122 are arranged in two groups corresponding to the slideway steel pipe piles 111 and the first slideway beams 112 of the underwater sliding support 111, and the rows of the second slideway beams 122 are connected with the first slideway beams 112 in a one-to-one correspondence manner, so that bridge construction members transported by the underwater sliding support 111 are transported to a cable tower or a steel box beam joint through the land sliding support 121 for installation.

The enlarged foundation 121 of the land sliding support 121 adopts a C30 enlarged foundation, the enlarged foundation 121 is reinforced according to the structure, a steel plate is embedded in the top of the enlarged foundation 121, the embedding of the steel plate can enhance the structural strength of the enlarged foundation 121, I45a type steel extending along the transverse bridge direction is paved on the enlarged foundation 121 to serve as a basic bearing beam 123, and the basic bearing beam 123 is welded with the steel plate embedded in the enlarged foundation 121. The second slideway beam 122 is disposed on the basic bearing beam 123, and in this embodiment, HN900 × 300 section steel is preferably used as the second slideway beam 122.

The inclined struts 25 are arranged between the first slide way beam 112 and the slide way bearing beam 113 connected with the first slide way beam and between the second slide way beam 122 and the foundation bearing beam 123 connected with the second slide way beam, the inclined struts 25 are respectively arranged on two sides of the slide way beam and are welded and fixed with the corresponding bearing beams, I14 type steel is preferably adopted as the inclined struts 25 in the embodiment, meanwhile, 36# channel steel can be paved in the slide way beam to serve as a sliding groove and a guiding device, and 16Mn steel with the thickness of 2cm is paved in the sliding groove to serve as a contact surface of the sliding trolley 2. The 16Mn steel has good comprehensive mechanical properties, the 16Mn contains manganese, the yield strength of the steel can be improved by 50 percent, the atmospheric corrosion resistance is improved by about 20 to 38 percent, and the low-temperature impact toughness is better than that of the A3 steel.

Please refer to fig. 4, since the sliding support 1 of the present application needs to extend from the bank to the water, that is, the sliding support 1 needs to cross the river bank, the embankment staggered track arrangement structure 13 at the crossing position of the sliding support 1 on the river bank can prevent the track from occupying the road, and ensure the normal traffic.

The embankment staggered track arrangement structure 13 comprises a concrete structure 131 poured on an original river levee, a groove extending along the bridge direction is formed in the concrete structure 131, a sliding groove beam is embedded in the groove of the concrete structure 131, a sliding rail beam is higher than the original road surface, the top surface of the concrete structure 131 is flush with the top surface of the sliding rail beam, and collision between vehicles and the sliding rail beam when the vehicles pass through the concrete structure 131 is avoided. Slopes are poured on two end sides of the concrete structure 131 along the river dike direction, the slope of each slope is 1%, and vehicles can conveniently pass through the concrete structure 131 due to the arrangement of the slopes.

Preferably, the present embodiment uses C30 concrete to cast the concrete structure 131, and the steel bars are placed in the concrete structure, so as to ensure that the embankment staggered track arrangement 13 has sufficient load bearing capacity.

When the intelligent weight shifting device is not needed to be used for transporting the bridge construction member, the steel plate can be adopted to cover the slide way beam, so that the vehicle can pass conveniently, and the slide way beam can be protected.

When the intelligent weight shifting device is used for transporting bridge construction members, the sliding trolley 2 and the traction device are arranged on the sliding support 1. The dolly 2 that slides of this application adopts crawler-type transport tanky, dolly 2 and the cooperation of slide roof beam slide, the drive mechanism of this application adopt the hoist engine, for guaranteeing to pull balanced the distolateral of two sets of slide roof beams of land support 121 that slides respectively sets up a traction point to supporting fixed pulley, movable pulley and wire rope are selected according to the tonnage of hoist engine. The sliding mechanism can transport a steel tower segment, a steel beam segment and a steel box girder segment to the site by adopting a barge when transporting bridge construction members, the steel tower segment, the steel beam segment and the steel box girder segment are unloaded by using a floating crane and are hoisted to the sliding trolley 2 of the sliding support 1, the steel wire rope of the traction mechanism is connected with the sliding trolley 2 of the bridge construction members for transportation at two points to pull the sliding trolley 2 to slide along the sliding support 1, and the friction between the bridge construction members and the sliding support 1 is reduced due to the arrangement of the sliding trolley 2.

Specifically, the sliding construction steps of the steel tower segment or the steel beam segment with shorter transportation length are as follows:

firstly, steel tower segment or steel crossbeam segment are unloaded the ship and are supported on slip support 1, and steel tower segment or steel crossbeam segment can adopt four 150t crawler-type transport tankers to carry out four-point support and transportation, and the position of four crawler-type transport tankers can be adjusted according to the size of the festival section of steel tower segment or steel crossbeam, and the same direction of bridge central line of crawler-type transport tankers coincides or basic coincidence with orbital central line that slides. In addition, in order to improve the transportation of the steel tower sections or the steel beam sections, transportation platforms are arranged on four crawler-type transportation tankers to convert point support into surface support and ensure the stability of transportation of bridge construction members, and the transportation platforms and the sliding trolley 2 are in a separable state.

Subsequently, the pulling device is installed. The winch is arranged on the end side of the sliding support 1, the lug plate and the pin shaft are welded on the transportation platform, the steel wire rope of the winch is buckled on the pin shaft through a shackle, and the transportation platform is pulled by the winch to drive the steel tower segment or the steel beam segment to slide.

And then, starting the winch to gradually tighten the steel wire rope so as to draw the steel tower segment or the steel beam segment to slide to an accurate position for positioning and installation. In addition, because two towers of the cable tower are respectively arranged at two sides of the sliding support 1, the steel tower segment needs to correspondingly move to the lower part of the tower to be hoisted.

For the transverse sliding of the steel tower segment, the land sliding support 121 of this embodiment may be divided into a longitudinal sliding mechanism and a transverse sliding mechanism, which are vertically intersected, where the longitudinal sliding mechanism is arranged along the bridge direction, and includes the second sliding beam 122 butted with the first sliding beam 112 and the enlarged bases 121 arranged along the extending path of the second sliding beam 122, the transverse sliding mechanism is located at one side of the longitudinal sliding mechanism close to the cable tower, the transverse sliding mechanism is arranged along the transverse bridge direction and includes a third sliding beam 124 perpendicular to the second sliding beam 122, and the bottom of the third sliding beam 124 is also correspondingly provided with the enlarged bases 121 for supporting. The transverse sliding support 1 is provided with a transverse sliding trolley 2, the sliding trolley 2 on the longitudinal sliding support 1 is marked as a longitudinal sliding trolley 2, and the upper end side of the transverse sliding support 1 is provided with a winch connected with the transverse sliding trolley 2 so as to pull the transverse sliding trolley 2 loaded with the steel tower segments to slide to a steel tower hoisting position.

And a lifting mechanism (not shown) is arranged at the intersection of the transverse sliding support 1 and the longitudinal sliding support 1, the lifting mechanism is used for transferring the steel tower segment on the longitudinal sliding trolley to the transverse sliding trolley, and a hydraulic jack is preferably adopted as the lifting mechanism. And longitudinally moving the steel tower segment to the intersection of the longitudinal sliding support 1 and the transverse sliding support 1, jacking the support platform by means of a hydraulic jack to separate from the longitudinal sliding trolley, enabling the longitudinal sliding trolley to exit the intersection of the longitudinal sliding support 1 and the transverse sliding support 1, then installing a transverse sliding trolley at the intersection, and driving the hydraulic jack to drive the support platform and the steel tower segment to fall onto the transverse sliding trolley by using a crawler-type carrying tank and driving the transverse sliding trolley to transversely move to the steel tower hoisting position by using a winch.

And finally, after the steel tower segment or the steel beam segment slides in place, hoisting and installing by using a truck crane.

The sliding construction steps for the steel box girder sections with longer transport length are the same as the construction steps for the bridge construction members with shorter transport length, the transportation of the steel box girder sections needs the synchronous operation of the sliding trolleys 2 on the two groups of slideway girders, and the rubber pads arranged on the sliding trolleys 2 are contacted with the bottom of the steel box girder sections, so that the friction force can be improved, and meanwhile, the abrasion to the steel box girder sections is avoided. Meanwhile, because the steel box girder segment has a large weight, when the traction device is installed on the steel box girder segment, a counterforce seat needs to be installed on a steel box girder bottom plate, then a welding lug plate and a pin shaft are installed on the counterforce seat, and a winch is used for winding a steel wire rope so as to pull the steel box girder to slide to an installation position along the bridge direction.

Please combine fig. 5 and fig. 6, adopt intelligent heavy object shifter to transport steel tower segment section, steel crossbeam segment section and steel box girder segment section respectively to the construction department with waiting to install, wherein, the steel crossbeam segment section needs to be assembled and forms the steel crossbeam and install on the cable-stayed bridge steel crossbeam multifunctional support accomplishes assembling of steel crossbeam this application. The multifunctional support for the steel cross beam of the cable-stayed bridge comprises an assembling support 2 of a large-tonnage steel-concrete combined cross beam of a cable-stayed bridge pylon and an assembling sliding support 3 of the large-tonnage steel cross beam of the cable-stayed bridge pylon, wherein the assembling support 2 of the large-tonnage steel-concrete combined cross beam of the cable-stayed bridge pylon is used for providing support for assembling a lower cross beam, the assembling sliding support 3 of the large-tonnage steel cross beam of the cable-stayed bridge pylon is based on the assembling support 2 of the large-tonnage steel-concrete combined cross beam of the cable-stayed bridge pylon and is built above the assembling support 2 of the large-tonnage steel-concrete combined cross beam of the cable-stayed bridge pylon, and the assembling sliding support 3 of the large-tonnage steel cross beam of the cable-stayed bridge pylon is used for providing support for assembling a middle cross beam and an upper cross beam.

Specifically, support 2 of assembling of cable-stay bridge cable-stayed tower large-tonnage steel-concrete combination crossbeam includes to arranging many support steel-pipe piles between two pylons of arranging in the cable-stayed tower along the cross bridge, support steel-pipe pile sets up two rows to at least along the longitudinal bridge, every row the top of support steel-pipe pile is equipped with along the cross bridge to the support pile bolck spandrel girder 22 that extends. Each row of the support steel pipe piles comprise sliding track piles 211 and bearing steel pipe piles 212, a sliding track beam 23 erected on a support pile top bearing beam 22 is arranged between the sliding track piles 211 of the adjacent two rows of the support steel pipe piles, the sliding track beam 23 extends along the bridge direction, the sliding track beam 23 is in butt joint with an intelligent weight shifting device, and therefore steel beam sections can be transferred to the splicing support 2 of the large-tonnage steel-concrete combined beam of the cable-stayed bridge cable tower through the sliding track beam 23 by the intelligent weight shifting device. And a support longitudinal bearing beam 24 erected on the support pile top bearing beam 22 is also arranged between the support pile top bearing beams 22 of the two adjacent rows of support steel pipe piles, and the support longitudinal bearing beam 24 extends along the bridge direction and is arranged in one-to-one correspondence with the support steel pipe piles of each row.

In addition, each row of support steel pipe piles is provided with two groups of sliding track piles 211, and the two groups of sliding track piles 211 are symmetrically arranged by the centers of two tower columns of the cable tower. In a preferred embodiment, 12 support steel pipe piles are arranged in each row, wherein 4 support steel pipe piles are used as the sliding track piles 211, and 4 sliding track piles 211 are divided into two groups; the remaining 8 support steel pipe piles are used as bearing steel pipe piles 212, the 8 bearing steel pipe piles 212 are divided into three groups according to the distribution relation of 2, 4 and 2, the three groups of bearing steel pipe piles 212 are arranged between the two groups of sliding track piles 211 and on two sides of the two groups of sliding track piles 211 at intervals, and 4 bearing steel pipe piles 212 between the two groups of sliding track piles 211 are arranged.

The sliding track beam 23 is also arranged corresponding to each row of sliding track piles 211 one by one, the sliding track beam 23 and the support pile top bearing beam 22 are provided with inclined struts 25, the inclined struts 25 can prevent the sliding track beam 23 from shaking left and right and play a role of preventing the inclined struts, and the stability of the sliding track beam 23 when the steel cross beam is transferred to the splicing support 2 of the cable-stayed bridge tower large-tonnage steel-concrete combined cross beam is ensured.

The support is characterized in that a lower cross beam temporary buttress 26 used for supporting a steel cross beam is arranged on the longitudinal bearing beam 24 of the support, a lower cross beam three-way jack (not shown in the figure) is arranged between the lower cross beam temporary buttress 26 and the longitudinal bearing beam 24 of the support, the lower cross beam three-way jack can realize the adjustment in the front-back direction, the left-right direction and the up-down direction, and the adjustment of the position of the steel cross beam can be achieved through the position of the lower cross beam three-way jack.

Furthermore, a plurality of the lower beam temporary buttresses 26 are arranged along the length direction of the support longitudinal bearing beam 24, and the plurality of the lower beam temporary buttresses 26 are uniformly distributed on the support longitudinal bearing beam 24. Each longitudinal support beam 24 of the support is provided with a plurality of lower beam temporary buttresses 26 which can support steel beams on the splicing support 2 of the large-tonnage steel-concrete combined beam of the cable-stayed bridge tower at multiple points, and can adjust the steel beams at multiple points, so that the adjustability and the support stability of the positions of the steel beams are improved.

Preferably, all the support steel pipe piles of the splicing support 2 of the large-tonnage steel-concrete combined cross beam of the cable-stayed bridge pylon of the embodiment adopt the support steel pipe piles

The support pile top bearing beam 22 is made of I45a steel, and the support longitudinal bearing beam 24 is also preferably made of I45a steel. In addition, the support steel-pipe pile of this embodiment is provided with two rows along following the bridge direction, and two rows the interval of support steel-pipe pile is 9 m.

In addition, the bottom of the splicing support 2 of the large-tonnage steel-concrete combined cross beam of the cable-stayed bridge cable tower is provided with a support expanding foundation 27, and the support expanding foundation 27 comprises a concrete pouring piece buried in a base. When the support enlarged foundation 27 is constructed, the earth in the area of the foundation to be enlarged is excavated by the excavator, and the foundation is compacted by replacement so as to ensure that the bearing capacity of the foundation meets the design requirements. Then, pre-embedded steel bars are installed at the foundation where the earth is excavated, concrete is poured to complete the construction of the support enlarged foundation 27, then the construction of the steel pipe pile is performed on the support enlarged foundation 27, and the steel pipe pile and the pre-embedded steel bars in the support enlarged foundation 27 are welded and fixed.

Meanwhile, in order to facilitate the transportation of the steel pipe piles, the steel pipe piles are processed into 12 m/section standard sections, the steel pipe pile standard sections are transported to a construction site and then spliced, and when the pile top of the bottom section is 1m high during pile splicing, another steel pipe pile standard section is hoisted to be lengthened.

Secondly, the support 3 that slides of assembling of cable-stay bridge cable-tower large-tonnage steel crossbeam of this application is in on the support 2 of assembling of cable-stay bridge cable-tower large-tonnage steel-concrete combination crossbeam, its with the support 2 of assembling of cable-stay bridge cable-tower large-tonnage steel-concrete combination crossbeam is the basis, well middle and upper crossbeam includes along two row at least supporting steel-pipe piles 31 of setting up in the same direction as the bridge, just the row number of supporting steel-pipe piles 31 with the row number of the support steel-pipe piles of assembling support 2 of cable-stay bridge cable-tower large-tonnage steel-concrete combination crossbeam corresponds, every row supporting steel-pipe pile 31 is including many supporting steel-pipe piles 31 to the range along the horizontal bridge. The top of the supporting steel pipe pile 31 is sequentially provided with a supporting pile top bearing beam 32, a bailey bearing beam 33 and a distribution beam 34 from bottom to top, wherein the supporting pile top bearing beam 32 extends along the bridge-following direction and is connected with two adjacent rows of supporting steel pipe piles 31, and a plurality of supporting steel pipe piles 31 are arranged in each row corresponding to the supporting pile top bearing beams 32 one by one. Bailey spandrel girder 33 extends and erects in many along the cross bridge supporting pile bolck 32, and Bailey spandrel girder 33 of this application adopts Bailey frame standard festival to assemble and forms, convenient transportation and dismouting, and Bailey frame has good structural rigidity, durability and life. The distribution beams 34 extend along the longitudinal bridge direction and are provided with a plurality of beams, and the distribution beams 34 are laid above the bailey frames along the transverse bridge direction.

Preferably, the supporting steel pipe pile 31 in the present embodiment is preferably adopted

Four supporting steel pipe piles 31 are arranged in each row, the distance between every two adjacent supporting steel pipe piles 31 in each row is 9m, and the two adjacent supporting steel pipe piles 31 in each row are connected through steel pipes in a parallel connection (not marked in the figure) along the transverse bridge direction. Meanwhile, it is known that the splicing support 2 of the cable-stayed bridge pylon large-tonnage steel-concrete combined beam of the embodiment is provided with two rows of steel pipe piles, so that the number of the supporting steel pipe piles 31 of the embodiment is also two corresponding to the number of the rows of the steel pipe piles, the distance between the two rows of the supporting steel pipe piles 31 is 9m, and the two adjacent rows of the supporting steel pipe piles 31 are connected through a steel pipe parallel connection (not marked in the figure) extending along the bridge directionThe steel pipe parallel connection is arranged corresponding to the supporting steel pipe piles 31 of each row one by one, and the two adjacent steel pipe parallel connections connected to each row and the two adjacent rows of steel pipe parallel connections are all adopted

The steel pipe of (1). In addition, the supporting pile top bearing beam 32 is preferably made of HN 900X 300 section steel, and the distribution beam 34 is preferably made of I22 section steel.

Every be equipped with a plurality of interim buttresses 35, and a plurality of along its length direction on the distribution beam 34 interim buttresses 35 is followed the length direction of distribution beam 34 evenly arranges, through interim buttresses 35 to place in the steel crossbeam on cable-stay bridge pylon large-tonnage steel crossbeam assembles sliding support 3 carries out the multiple spot and supports, simultaneously interim buttress 35 bottom with be equipped with the three-dimensional jack between the distribution beam 34, then can carry out the multiple spot to the steel crossbeam and adjust the plane position of steel crossbeam section then.

In conclusion, the multifunctional support for the steel cross beams of the cable-stayed bridge is adopted to assemble the upper cross beam, the middle cross beam and the lower cross beam respectively, wherein the assembling support 2 for the large-tonnage steel-concrete combined cross beam of the cable-stayed bridge tower is adopted to assemble the lower cross beam, after the lower cross beam is assembled, the assembling sliding support 3 for the large-tonnage steel cross beam of the cable-stayed bridge tower is built on the basis of the assembling support 2 for the large-tonnage steel-concrete combined cross beam of the cable-stayed bridge tower, and then the assembling of the middle cross beam and the upper cross beam is completed through the assembling sliding support 3 for the large-tonnage steel cross beam of the cable-stayed bridge tower.

Therefore, the assembly of the steel beam by adopting the multifunctional bracket for the steel beam of the cable-stayed bridge specifically comprises the following steps:

firstly, hoisting the steel crossbeam segment to the multifunctional bracket of the steel crossbeam of the cable-stayed bridge.

And secondly, assembling and welding the steel cross beam from the middle of the steel cross beam to two ends one by one to complete the installation of the steel cross beam.

Specifically, when the lower cross beam is assembled, a steel cross beam segment positioned in the middle of the lower cross beam is hoisted to the assembling support 2 of the large-tonnage steel-concrete combined cross beam of the cable-stayed bridge cable tower by using a truck crane, and the position of the steel cross beam segment is adjusted to ensure that the center line of the steel cross beam along the transverse bridge direction is coincident or approximately coincident with the center line of the steel tower. And hoisting the steel beam section close to the first steel beam section to the assembling support 2 of the large-tonnage steel-concrete combined cross beam of the cable-stayed bridge cable tower, wherein the steel beam section is supported on a temporary buttress 35 of the assembling support 2 of the large-tonnage steel-concrete combined cross beam of the cable-stayed bridge cable tower, and the position of the temporary buttress 35 can be adjusted through a three-way jack so as to adjust the position and elevation of the steel beam section placed on the temporary buttress 35 and enable the steel beam section to be accurately butted with the first steel beam section. And temporarily fixing the two steel beam sections by adopting a welding horse plate, and then carrying out layered welding on joints of the two steel beam sections and carrying out welding seam detection.

And then, respectively hoisting the steel beam sections on two sides of the two welded steel beam sections to an assembling support 2 of the large-tonnage steel-concrete combined beam of the cable-stayed bridge tower, wherein the two steel beam sections can be respectively marked as a section III and a section IV. In the embodiment, the sections III and IV are heavy, the steel beam sections are transported to the splicing support 2 of the large-tonnage steel-concrete combined cross beam of the cable-stayed bridge cable tower through the sliding track beam 23 of the splicing support 2 of the large-tonnage steel-concrete combined cross beam of the cable-stayed bridge cable tower butted with the intelligent weight shifting device, the plane positions and the elevations of the sections III and IV are adjusted through the three-way jack, the sections III and IV are precisely butted with two sides of the spliced two steel beam sections respectively, the sections III and the sections IV are temporarily fixed by adopting a welding horse board model, and then the joints are welded in a layered mode and welding seams are detected.

And then, hoisting the steel beam sections on the intelligent weight shifting device by using a truck crane to be placed on two sides of the assembled steel beam, repeating the steps, adjusting the plane position and the elevation of the steel beam sections subsequently hoisted to the assembling support 2 of the large-tonnage steel-concrete combined beam of the cable-stayed bridge tower by using a three-way jack, accurately butting the steel beam sections to be assembled with the assembled steel beam sections, and finally welding to complete the assembling of the lower beam.

After the lower cross beam is assembled, assembling sliding supports 3 of the large-tonnage steel cross beam of the cable-stayed bridge cable tower are assembled on the basis of the assembling supports 2 of the large-tonnage steel-concrete combined cross beam of the cable-stayed bridge cable tower so as to assemble the middle cross beam and the upper cross beam. When middle cross beam or entablature are assembled, all adopt the intelligent heavy object shifter of truck crane hoist and mount to transport the steel crossbeam segment that comes to cable-stay bridge tower large-tonnage steel crossbeam assemble on the support 3 that slides, and assemble towards the order of both sides from the centre of steel crossbeam, all adjust the plane position and the elevation of steel crossbeam segment through three-dimensional jack during assembling, make the steel crossbeam segment of both sides and the steel crossbeam segment accurate positioning that has been assembled in the centre, utilize the welding horse board to the steel crossbeam segment after temporarily fixing, at last with the joint layering welding of steel crossbeam segment and carry out the welding seam detection, can accomplish assembling of middle cross beam or entablature. And finally, hoisting the assembled middle cross beam and the assembled upper cross beam to a cable tower cross beam mounting position by using a lifting device for welding and fixing.

In addition, the steel beam sections are welded in a mode of connecting and welding the interface circular seams and the stiffening ribs, temporary fixing parts such as welding straps and the like are removed after main welding seams are bottomed and filled, the welding straps are removed twice, part of the welding straps are removed after bottoming is completed, the distance between the rest welding straps cannot exceed 1.5m, and the rest welding straps are removed after filling is completed. Temporary fixing pieces such as welding straps and the like must be removed by adopting a flame cutting or carbon arc gouging method, the parent metal cannot be damaged, and strong dismantling is strictly forbidden so as to avoid tearing the parent metal.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims (6)

1. The utility model provides an intelligent heavy object shift unit which characterized by: comprises a sliding bracket, a sliding trolley and a traction mechanism;

the water sliding support extends along the bridge direction and comprises a slideway steel pipe pile and a first slideway beam, the slideway steel pipe pile is arranged along a preset path of the first slideway beam, the land sliding support comprises a second slideway beam, and the first slideway beam is connected with the second slideway beam;

the traction mechanism is arranged at the end part of the sliding support and used for drawing the sliding trolley to move along the sliding support so as to transport bridge construction members, the traction mechanism comprises a winch and steel wire ropes used for being connected with a transport flat plate, and at least two groups of traction mechanisms are arranged in the same direction;

the dolly that slides includes crawler-type transport tankmoup, be equipped with the transportation flat board on the crawler-type transport tankmoup.

2. The intelligent weight shifting apparatus of claim 1, wherein: the slide steel-pipe pile sets up two sets ofly along the cross bridge to, every group the slide steel-pipe pile is equipped with two rows of slide steel-pipe piles that extend along the bridge, and two rows of every group be equipped with the slide spandrel girder that many one-to-one connections between the slide steel-pipe pile, the slide spandrel girder is extended along the cross bridge, first slide roof beam lay in on the slide spandrel girder.

3. The intelligent weight shifting apparatus of claim 1, wherein: the land sliding support comprises a vertical sliding mechanism and a horizontal sliding mechanism which are vertically crossed, the vertical sliding mechanism extends along the forward bridge direction and is in butt joint with the underwater sliding support, the horizontal sliding mechanism extends along the horizontal bridge direction, the horizontal sliding mechanism is positioned on one side, close to the cable tower, of the vertical sliding mechanism, and a lifting mechanism used for transferring a bridge construction piece on the vertical sliding mechanism to the horizontal sliding mechanism is arranged at the crossed position of the vertical sliding mechanism and the horizontal sliding mechanism.

4. The intelligent weight shifting apparatus of claim 3, wherein: the longitudinal sliding mechanism comprises a second slide beam, the transverse sliding mechanism comprises a third slide beam which is vertically crossed with the second slide beam, and an expansion foundation which is arranged along the length direction of the third slide beam is arranged at the bottom of the third slide beam.

5. The intelligent weight shifting apparatus of claim 3, wherein: the lifting mechanism comprises a hydraulic jack.

6. The intelligent weight shifting apparatus of claim 1, wherein: the sliding support is positioned at the river embankment and is provided with an embankment staggered track arrangement structure.

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