CN112554068A - Combined construction equipment and construction method for fully-prefabricated bridge pier and bridge - Google Patents
Combined construction equipment and construction method for fully-prefabricated bridge pier and bridge Download PDFInfo
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- CN112554068A CN112554068A CN202011459025.XA CN202011459025A CN112554068A CN 112554068 A CN112554068 A CN 112554068A CN 202011459025 A CN202011459025 A CN 202011459025A CN 112554068 A CN112554068 A CN 112554068A
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- leg
- prefabricated
- pier
- bridge
- support leg
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
- B66C11/02—Trolleys or crabs, e.g. operating above runways with operating gear or operator's cabin suspended, or laterally offset, from runway or track
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
Abstract
The invention relates to the technical field of bridge girder erection machines, in particular to a combined construction device and a construction method for a full-prefabricated bridge pier and a bridge, which comprises an online device and an offline device; the on-line equipment comprises a bridge girder erection machine, the bridge girder erection machine is suitable for being supported on an erected bridge and is used for erecting a prefabricated box girder or lifting a prefabricated pier body and a prefabricated cover beam to the off-line equipment; the off-line equipment comprises a pier erecting machine which is suitable for receiving and hoisting the prefabricated pier body and the prefabricated bent cap lifted by the bridge erecting machine. The prefabricated pier body and the prefabricated bent cap are convenient to install, the construction cost is saved, and the construction efficiency is improved.
Description
Technical Field
The invention relates to the technical field of bridge girder erection machines, in particular to a combined construction device and a construction method for a full-prefabricated bridge pier and a bridge.
Background
At present, when a railway bridge is constructed, an upper structure and a lower structure are separately constructed, and the upper structure is generally constructed after the lower structure is completed. The research and application of prefabricating and assembling construction on the upper structure (mainly a box girder) of the bridge in China are mature, and the box girder completely realizes industrial production and mechanical assembly. However, the construction of the bridge substructure (mainly the pier body and the bent cap) is mainly carried out in a cast-in-place mode, the construction period of the cast-in-place mode is long, the construction period is easily influenced by external factors, the construction quality is difficult to control, the labor intensity of workers is high, the construction efficiency is low, the materials of the pier body and the bent cap need to be transported to the construction site by road repairing, and the construction cost of the bridge is increased.
Disclosure of Invention
The invention solves the problem of how to conveniently install the prefabricated pier body and the prefabricated bent cap, thereby saving the construction cost and improving the construction efficiency.
In order to solve the problems, the invention provides a full-prefabricated bridge pier and bridge combined construction device, which comprises an online device and an offline device; the on-line equipment comprises a bridge girder erection machine, the bridge girder erection machine is suitable for being supported on an erected bridge and is used for erecting a prefabricated box girder or lifting a prefabricated pier body and a prefabricated cover beam to the off-line equipment; the off-line equipment comprises a pier erecting machine which is suitable for receiving and hoisting the prefabricated pier body and the prefabricated bent cap lifted by the bridge erecting machine.
The pier erecting machine comprises a machine arm, a support assembly, a hoisting assembly and a transfer assembly, wherein the support assembly is used for supporting the machine arm, the transfer assembly is connected to the machine arm in a sliding mode, and the transfer assembly is used for receiving the prefabricated pier body and the prefabricated capping beam and transferring the prefabricated pier body and the prefabricated capping beam to a hoisting position of the hoisting assembly; the hoisting assembly is connected with the machine arm in a sliding mode and used for hoisting the prefabricated pier body and the prefabricated bent cap.
Optionally, the transfer assembly comprises a front auxiliary trolley and a rear auxiliary trolley, and the front auxiliary trolley and the rear auxiliary trolley are both slidably connected to the horn and adapted to move along the length direction of the horn.
Optionally, hoist and mount subassembly includes fore-stock mound gantry crane and after-frame mound gantry crane, the fore-stock mound gantry crane with after-frame mound gantry crane equal sliding connection in the horn just is suitable for to follow the length direction of horn removes, the fore-stock mound gantry crane with after-frame mound gantry crane is used for the hoist and mount preceding supplementary platform truck with the back supplementary platform truck is transported prefabricated pier shaft with prefabricated bent cap.
Optionally, the support assembly comprises a front leg, a middle leg, a rear leg and a rear auxiliary leg, the top end of the rear auxiliary leg is adapted to be connected with the horn, the bottom end of the rear auxiliary leg is adapted to be supported on the erected bent cap, the top ends of the front leg, the middle leg and the rear leg are adapted to be connected with the horn, and the bottom ends of the front leg, the middle leg and the rear leg are adapted to be supported on a ground cushion cap.
Optionally, the front support leg, the middle support leg, the rear support leg and the rear auxiliary support leg are respectively provided with a lifting device, and the front support leg, the middle support leg, the rear support leg and the rear auxiliary support leg are all suitable for adjusting the supporting height through the lifting devices.
Optionally, the top ends of the front support leg, the middle support leg and the rear support leg are provided with a suspension wheel supporting mechanism, and the front support leg, the middle support leg and the rear support leg are suitable for sliding relative to the horn through the suspension wheel supporting mechanism, or the front support leg, the middle support leg and the rear support leg are suitable for driving the horn to move through the suspension wheel supporting mechanism.
Optionally, the front support leg, the middle support leg and the rear support leg are provided with a locking device, and the locking device is used for limiting the front support leg, the middle support leg and the rear support leg to move relative to the horn.
Optionally, when the pier erecting machine passes through the hole, the bridge erecting machine is suitable for simultaneously hoisting the precast box girder.
The invention also provides a combined construction method of the fully-prefabricated bridge pier and the bridge, which adopts the combined construction equipment of the fully-prefabricated bridge pier and the bridge, and comprises the following steps:
step A, after on-line equipment and on-line lower support of the pier and bridge combined construction equipment are in place, a bridge girder erection machine of the on-line equipment hoists the prefabricated pier body to a transfer assembly of the off-line equipment;
b, the transfer assembly transfers the prefabricated pier bodies to the hoisting positions of a front frame pier gantry crane and a rear frame pier gantry crane of the off-line equipment, the hoisting assembly transports the prefabricated pier bodies to the installation position, and the transfer assembly retreats and carries and transfers the prefabricated cover beams;
c, after the front frame pier gantry crane and the rear frame pier gantry crane of the hoisting assembly are matched to hoist the prefabricated pier body to an inclined state, the hoisting state of the rear frame pier gantry crane is released, the prefabricated pier body is installed by the front frame pier gantry crane, the rear frame pier gantry crane retreats to a hoisting position, and the prefabricated cover beam transported by the transporting assembly is hoisted;
and D, the front frame pier gantry crane moves forwards to allow the prefabricated capping beam installation space to be formed, and the rear frame pier gantry crane hoists the prefabricated capping beam to an installation position for installation.
Optionally, the method further comprises:
step E, after the prefabricated pier body and the prefabricated bent cap are installed, enabling a front supporting leg, a middle supporting leg and a rear supporting leg of the offline device to be in a stable supporting state with a ground bearing platform, enabling a rear auxiliary supporting leg of the offline device to be suspended in the air, and driving a machine arm to move to a preset position through a hanging wheel mechanism on the front supporting leg, the middle supporting leg and the rear supporting leg;
step F, the rear supporting leg is retracted to a suspended state, and the rear supporting leg moves to a specified position through a supporting and hanging wheel mechanism and is supported on a ground bearing platform;
g, the middle supporting leg is contracted to be in a suspended state, and the middle supporting leg is moved to a specified position through the suspension wheel supporting mechanism and supported on the ground bearing platform;
step H, driving the horn to move forwards again by the supporting and hanging wheel mechanisms on the front supporting leg and the rear supporting leg until the rear auxiliary supporting leg moves to a preset position;
step I, the front supporting leg is contracted to a suspended state, and the front supporting leg moves to a preset position on the machine arm and then is supported on a ground bearing platform;
and J, the middle supporting leg is retracted to be in a suspended state, and the middle supporting leg moves to a preset position on the machine arm and then is supported on the ground bearing platform.
Compared with the prior art, the invention has the beneficial effects that: when the prefabricated pier body and the prefabricated capping beam are constructed, the bridge erecting machine is arranged on the erected bridge, the transport vehicle transports the prefabricated box beam, the prefabricated pier body and the prefabricated capping beam from the erected bridge, the prefabricated pier body and the prefabricated capping beam are hoisted to the bridge erecting machine in sequence by the bridge erecting machine, the prefabricated pier body and the prefabricated capping beam are sequentially hoisted and hoisted by the bridge erecting machine, and after the prefabricated pier body and the prefabricated capping beam are installed, the prefabricated box beam is hoisted by the bridge erecting machine.
Drawings
FIG. 1 is a schematic view showing an overall structure of construction equipment according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an inline device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an offline device in an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 5 is a schematic structural view of a front leg in an embodiment of the present invention;
FIG. 6 is a side view of a front leg in an embodiment of the present invention;
FIG. 7 is a schematic structural view of a center leg in an embodiment of the present invention;
FIG. 8 is a side view of a center leg in an embodiment of the present invention;
FIG. 9 is a schematic structural view of a rear leg in an embodiment of the present invention;
FIG. 10 is a side view of a rear leg in an embodiment of the present invention;
FIG. 11 is a schematic structural view of a rear auxiliary leg in an embodiment of the present invention;
FIG. 12 is a side view of a rear auxiliary leg in an embodiment of the present invention;
FIG. 13 is a schematic structural view of a front pier gantry crane according to an embodiment of the invention;
FIG. 14 is a schematic structural view of a rear pier gantry crane according to an embodiment of the invention;
FIG. 15 is a schematic structural view of a horn according to an embodiment of the present invention;
FIG. 16 is a schematic structural view of a horn and a walking beam according to an embodiment of the present invention;
FIG. 17 is a schematic representation of step A in an embodiment of the present invention;
FIG. 18 is a schematic representation of step A in an embodiment of the present invention;
FIG. 19 is a schematic representation of step B in an embodiment of the present invention;
FIG. 20 is a schematic view of step B in an embodiment of the present invention;
FIG. 21 is a schematic illustration of steps B and C in an embodiment of the present invention;
FIG. 22 is a schematic illustration of steps B and C in an embodiment of the present invention;
FIG. 23 is a schematic illustration of steps B and C in an embodiment of the present invention;
FIG. 24 is a schematic view of steps C and D of an embodiment of the present invention;
FIG. 25 is a schematic representation of step E in an embodiment of the present invention;
FIG. 26 is a schematic representation of step E in an embodiment of the present invention;
FIG. 27 is a schematic representation of step E in an embodiment of the present invention;
FIG. 28 is a schematic view of step F in an embodiment of the present invention;
FIG. 29 is a schematic view of step G in an embodiment of the present invention;
FIG. 30 is a schematic view of step H in the example of the present invention;
FIG. 31 is a schematic view of step I in an embodiment of the present invention;
FIG. 32 is a schematic view of step J in an embodiment of the present invention;
FIG. 33 is a rear view of a horn via in an embodiment of the present invention;
fig. 34 is a schematic view showing preparation for continuously erecting prefabricated pier bodies and prefabricated pier columns according to an embodiment of the present invention;
FIG. 35 is a schematic view of the continuous erection of prefabricated pier bodies and prefabricated pier columns according to an embodiment of the present invention;
FIG. 36 is a schematic view of a continuous via of a horn in an embodiment of the present invention;
fig. 37 is a schematic view of the bridge girder erection machine for erecting the prefabricated box girder according to the embodiment of the invention.
Description of reference numerals:
1-bridge girder erection machine and 101-crane trolley; 2-a horn, 201-a first track, 202-a second track, 203-a third track, 204-a walking beam; 3-support assembly, 301-front leg, 302-middle leg, 303-rear leg, 304-rear auxiliary leg; 4-hoisting component, 401-front frame pier gantry crane and 402-rear frame pier gantry crane; 5-a transfer component, 501-a front auxiliary trolley, 502-a rear auxiliary trolley; 6-a lifting device; 7-supporting the hanging wheel mechanism; 8-a locking device; 9-a transport vehicle; 10-prefabricating a pier body; and 11, prefabricating the cover beam.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it is to be understood that the forward direction of "X" in the drawings represents the right direction, and correspondingly, the reverse direction of "X" represents the left direction; the forward direction of "Y" represents forward, and correspondingly, the reverse direction of "Y" represents rearward; the forward direction of "Z" represents the upward direction, and correspondingly, the reverse direction of "Z" represents the downward direction, and the directions or positional relationships indicated by the terms "X", "Y", "Z", etc. are based on the directions or positional relationships shown in the drawings of the specification, and are only for convenience of describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular direction, be constructed and operated in a particular direction, and thus should not be construed as limiting the present invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present invention, it should be noted that terms such as "upper", "lower", "front", "rear", and the like in the embodiments indicate orientation words, which are used for simplifying the description of positional relationships based on the drawings of the specification, and do not represent that elements, devices, and the like which are referred to must operate according to specific orientations and defined operations and methods, configurations in the specification, and such orientation terms do not constitute limitations of the present invention.
In addition, the terms "first" and "second" mentioned in the embodiments of the present invention are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
At present, when a railway bridge is constructed, an upper structure and a lower structure are separately constructed, and the upper structure is generally constructed after the lower structure is completed. The research and application of prefabricating and assembling construction on the upper structure (mainly a box girder) of the bridge in China are mature, and the box girder completely realizes industrial production and mechanical assembly. However, the construction of the bridge substructure (mainly the pier body and the bent cap) is mainly carried out in a cast-in-place mode, the construction period of the cast-in-place mode is long, the construction period is easily influenced by external factors, the construction quality is difficult to control, the labor intensity of workers is high, the construction efficiency is low, the materials of the pier body and the bent cap need to be transported to the construction site by road repairing, and the construction cost of the bridge is increased.
In order to solve the above problems, an embodiment of the present invention provides a full precast pier and bridge combined construction apparatus, including an online apparatus and an offline apparatus; the on-line equipment comprises a bridge girder erection machine 1, wherein the bridge girder erection machine 1 is suitable for being supported on an erected bridge, and the bridge girder erection machine 1 is used for erecting a prefabricated box girder or lifting a prefabricated pier body 10 and a prefabricated capping beam 11 to the off-line equipment; the offline equipment comprises a pier erecting machine which is suitable for receiving and hoisting a prefabricated pier body 10 and a prefabricated bent cap 11 which are hoisted by the bridge erecting machine 1.
Optionally, the pier erecting machine comprises a machine arm 2, a support assembly 3, a hoisting assembly 4 and a transfer assembly 5, wherein the support assembly 3 is used for supporting the machine arm 2, the transfer assembly 5 is connected to the machine arm 2 in a sliding manner, and the transfer assembly 5 is used for receiving the prefabricated pier body 10 and the prefabricated capping beam 11 and transferring the prefabricated pier body 10 and the prefabricated capping beam 11 to the hoisting position of the hoisting assembly 4; hoist and mount subassembly 4 sliding connection is in horn 2, and hoist and mount subassembly 4 is used for hoist and mount prefabricated pier shaft 10 and prefabricated bent cap 11.
Referring to fig. 1-4, the fully-prefabricated pier and bridge combined construction equipment comprises on-line equipment and off-line equipment. The on-line equipment comprises a bridge girder erection machine 1, wherein the bridge girder erection machine 1 is supported on an erected bridge, and when the prefabricated box girder is erected, the bridge girder erection machine 1 is used for erecting and installing the prefabricated box girder. Two trolley 101 are arranged on the bridge girder erection machine 1, the two trolley 101 are arranged on the bridge girder erection machine 1 in a sliding manner, and the trolley 101 is suitable for moving along the length direction of the bridge girder erection machine 1. And the transport vehicle 9 is also included, and the transport vehicle 9 is suitable for running on the erected bridge so as to convey the prefabricated box girders, the prefabricated pier bodies 10 and the prefabricated cover girders 11 to the bridge girder erection machine 1 and be lifted by the crane trolley 101 on the bridge girder erection machine 1. The trolley 101 on the bridge girder erection machine 1 not only erects the prefabricated box girder conveyed by the transport vehicle 9, but also hoists the prefabricated pier shaft 10 and the prefabricated bent cap 11 conveyed by the transport vehicle 9 to the off-line equipment.
Referring to fig. 1-4, the offline apparatus includes a pier erecting machine including a horn 2, a support assembly 3, a hoisting assembly 4, and a transfer assembly 5. The length direction of the machine arm 2 is consistent with the length direction of the bridge girder erection machine 1. The supporting component 3 is used for supporting the machine arm 2, and the machine arm 2 is located at one end of the bridge to be erected under the supporting effect of the supporting component 3. The transfer component 5 is arranged on the machine arm 2 in a sliding mode, the transfer component 5 is suitable for sliding to the lifting position of the bridge girder erection machine 1, the crane trolley 101 on the bridge girder erection machine 1 lifts the prefabricated pier body 10 and the prefabricated cover beam 11 to the transfer component 5, and then the transfer component 5 moves to the lifting component 4. Hoist and mount subassembly 4 slides and sets up in horn 2, and hoist and mount subassembly 4 is used for hoisting prefabricated pier shaft 10 and the prefabricated bent cap 11 of transporting on the transport subassembly 5, and hoist and mount subassembly 4 will prefabricate pier shaft 10 and prefabricated bent cap 11 and install to the assigned position. The transfer assembly 5 thus associates the trolley 101 of the bridge girder erection machine 1 with the hoisting assembly 4.
The arrangement is that when the bridge is erected, the prefabricated pier body 10 and the prefabricated capping beam 11 are erected firstly, the transport vehicle 9 travels on the erected bridge to transport the prefabricated pier body 10 and the prefabricated capping beam 11 to the bridge erecting machine 1, then the crane trolley 101 on the bridge erecting machine 1 hoists the prefabricated pier body 10 or the prefabricated capping beam 11 to the transfer component 5, the prefabricated pier body 10 and the prefabricated capping beam 11 are transported to the hoisting component 4 through the transfer component 5, the feeding operation of the precast pier body 10 and the precast capping beam 11 is facilitated, the feeding process of the precast pier body 10 and the precast capping beam 11 is not easily influenced by the terrain, the precast pier body 10 and the precast capping beam 11 are hoisted to a preset position through the hoisting assembly 4, and conveniently accomplish the work progress of prefabricated pier shaft 10 and prefabricated bent cap 11, reduced workman's operation, saved the manpower, the transportation of prefabricated pier shaft 10 and prefabricated bent cap 11 is to the installation wholeization, and the efficiency of construction promotes by a wide margin. After the prefabricated pier bodies 10 and the prefabricated capping beams 11 are installed, the prefabricated box girders conveyed by the transport vehicle 9 are erected and installed by the bridge girder erection machine 1, so that the construction of the prefabricated bridge is completed. The prefabricated box girder, the prefabricated pier body and the prefabricated bent cap are transported from the erected bridge without repairing roads under the bridge for the transport vehicle 9 to walk, so that the construction cost is saved and the construction efficiency is improved.
Optionally, the transfer assembly 5 comprises a front auxiliary trolley 501 and a rear auxiliary trolley 502, each of the front auxiliary trolley 501 and the rear auxiliary trolley 502 is slidably connected to the horn 2 and adapted to move along the length direction of the horn 2.
Referring to fig. 1 to 4 and 12, the transfer assembly 5 includes a front auxiliary trolley 501 and a rear auxiliary trolley 502, the front auxiliary trolley 501 and the rear auxiliary trolley 502 have the same structure, the front auxiliary trolley 501 and the rear auxiliary trolley 502 both include trolley beams and trolley driving structures, the trolley driving structures are disposed at both ends of the trolley beams, the trolley driving structures include trolley wheels and trolley motors, the trolley wheels are driven by the trolley motors to travel on the boom 2 to drive the trolley beams to travel on the boom 2, and the traveling directions of the front auxiliary trolley 501 and the rear auxiliary trolley 502 are the traveling directions along the length direction of the boom 2. The length direction of the bogie beam is perpendicular to the length direction of the horn 2. When the front auxiliary trolley 501 and the rear auxiliary trolley 502 transport the prefabricated pier body 10 and the prefabricated bent cap 11, the prefabricated pier body 10 and the prefabricated bent cap 11 are supported by trolley beams of the front auxiliary trolley 501 and the rear auxiliary trolley 502.
By the arrangement, when the prefabricated pier bodies 10 and the prefabricated bent caps 11 are transported by the transporting assembly 5, the prefabricated pier bodies 10 and the prefabricated bent caps 11 are hoisted to trolley beams on the front auxiliary trolley 501 and the rear auxiliary trolley 502 through the hoisting trolley 101 of the bridge girder erection machine 1, and the prefabricated pier bodies 10 and the prefabricated bent caps 11 are stably supported and are not easy to fall. Then, along with the advance of the front auxiliary trolley 501 and the rear auxiliary trolley 502, the prefabricated pier body 10 and the prefabricated bent cap 11 are gradually conveyed to the hoisting position of the hoisting assembly 4, so that the hoisting assembly 4 is convenient to hoist the prefabricated pier body 10 and the prefabricated bent cap 11, the feeding operation of the construction of the prefabricated pier body 10 and the prefabricated bent cap 11 is completed, and the hoisting operation of the subsequent hoisting assembly 4 on the prefabricated pier body 10 and the prefabricated bent cap 11 is convenient.
Optionally, the horn 2 is provided with a walking beam 204 towards one end of the erected bridge, the walking beam 204 extending onto the erected bridge, and the front auxiliary trolley 501 and the rear auxiliary trolley 502 are adapted to move on the walking beam 204.
Referring to fig. 1-4 and 12-13, the end of the horn 2 facing the erected bridge is provided with a walking beam 204, the length direction of the walking beam 204 is consistent with the length direction of the horn 2, the walking beam 204 is fixedly or telescopically arranged on the horn 2, and in the embodiment, the walking beam 204 is telescopically arranged on the horn 2. When the walking beam 204 is used, the walking beam 204 extends out of the horn 2, and the walking beam 204 extends above the erected bridge. And a supporting seat is fixed at the extending end of the walking beam 204, and the extending end of the walking beam 204 is supported on the erected bridge through the supporting seat. When the walking beam 204 is not used, the walking beam 204 is retracted into the machine arm 2 to protect the walking beam 204, and after the walking beam 204 is retracted into the machine arm 2, a prefabricated box beam descending channel is made for erecting a preset box beam, so that the walking beam 204 is not easy to influence and hinder other construction processes on the machine arm 2. The front auxiliary trolley 501 and the rear auxiliary trolley 502 are both suitable for moving on the walking beams 204, and the walking beams 204 support the front auxiliary trolley 501 and the rear auxiliary trolley 502 to move above the erected bridge so as to be convenient for receiving the prefabricated pier body 10 and the prefabricated cover beam 11 lifted by the bridge girder erection machine 1.
According to the arrangement, the travelling beam 204 extends the machine arm 2 to the upper part of the erected bridge and is positioned below the bridge girder erection machine 1, and when the front auxiliary trolley and the rear auxiliary trolley move on the travelling beam 204, the travelling beam 204 supports the front auxiliary trolley 501 and the rear auxiliary trolley 502 to move to the lower part of the bridge girder erection machine 1, so that the prefabricated pier body 10 and the prefabricated cover beam 11 lifted by the crane trolley 101 of the bridge girder erection machine 1 can be conveniently received. Due to the existence of the walking beam 204, the moving directions of the front auxiliary trolley 501 and the rear auxiliary trolley 502 are limited, and the front auxiliary trolley 501 and the rear auxiliary trolley 502 are not easy to deviate in the moving process, so that the prefabricated pier body 10 and the prefabricated cover beam 11 are stably transferred to the hoisting position of the hoisting component 4.
Optionally, the hoisting assembly 4 comprises a front frame pier gantry crane 401 and a rear frame pier gantry crane 402, the front frame pier gantry crane 401 and the rear frame pier gantry crane 402 are both slidably connected to the machine arm 2 and are adapted to move along the length direction of the machine arm 2, and the front frame pier gantry crane 401 and the rear frame pier gantry crane 402 are used for hoisting the prefabricated pier body 10 and the prefabricated cover beam 11 transported by the front auxiliary trolley 501 and the rear auxiliary trolley 502.
Referring to fig. 1-4 and fig. 12 and 14, the hoisting assembly 4 comprises a front pier gantry crane 401 and a rear pier gantry crane 402, wherein the front pier gantry crane 401 and the rear pier gantry crane 402 are both slidably arranged on the machine arm 2, and the rear pier gantry crane 402 is positioned between the front pier gantry crane 401 and the erected bridge. The front frame pier gantry crane 401 and the rear frame pier gantry crane 402 both comprise a lifting device, gantry support legs and a traveling mechanism. The gantry supporting legs are arranged in a shape of a Chinese character 'men', and the bottom ends of the gantry supporting legs are provided with walking mechanisms which are suitable for moving on the machine arm 2 along the length direction of the machine arm 2. The hoisting device is arranged on the upper side face of the gantry supporting leg and comprises a crane and a lifting appliance, the lifting appliance of the front frame pier gantry crane 401 is a pier body lifting appliance, and the lifting appliance of the rear frame pier gantry crane 402 is a rotatable lifting appliance. In other embodiments, the spreaders of the front pier gantry 401 and the rear pier gantry 402 can be either pier body spreaders or rotatable spreaders. The pier body lifting appliance is used for lifting the prefabricated pier body 10, and the rotatable lifting appliance is used for lifting the prefabricated pier body 10 and the prefabricated bent cap 11.
After the front auxiliary trolley 501 and the rear auxiliary trolley 502 respectively transport the prefabricated pier body 10 and the prefabricated cover beam 11 to the hoisting positions of the front frame pier gantry crane 401 and the rear frame pier gantry crane 402, the prefabricated pier body 10 is hoisted to a preset position by the front frame pier gantry crane 401 and the rear frame pier gantry crane 402, after the prefabricated pier body 10 is installed, the rear frame pier gantry crane 402 hoists the prefabricated cover beam 11 transported by the front auxiliary trolley 501 and the rear auxiliary trolley 502 to the preset position and installs the prefabricated cover beam 11.
According to the arrangement, after the front auxiliary trolley 501 and the rear auxiliary trolley 502 transfer the prefabricated pier body 10 to the lifting positions of the front frame pier gantry crane and the rear frame pier gantry crane 402, the lifting device on the front frame pier gantry crane 401 drives the lifting appliance to lift the prefabricated pier body 10, and after the prefabricated pier body 10 is lifted, the traveling mechanisms of the front frame pier gantry crane 401 and the rear frame pier gantry crane 402 drive the front frame pier gantry crane 401 and the rear frame pier gantry crane 402 to move to the installation position of the prefabricated pier body 10 and install the prefabricated pier body 10. After the prefabricated pier body 10 is installed, the rear frame pier gantry crane 402 moves to a hoisting position, the prefabricated cover beam 11 transported by the front auxiliary trolley 501 and the rear auxiliary trolley 502 is hoisted through the rear frame pier gantry crane 402, the prefabricated cover beam 11 moves to an installation position along with the rear frame pier gantry crane 402, and the rear frame pier gantry crane 402 is used for installing the prefabricated cover beam 11. The prefabricated pier body 10 and the prefabricated bent cap 11 are easy to lift and install, the installation and construction processes of the prefabricated pier body 10 and the prefabricated bent cap 11 are continuous, and the construction efficiency is high.
Optionally, the support assembly 3 comprises a front leg 301, a middle leg 302, a rear leg 303 and a rear auxiliary leg 304, the top end of the rear auxiliary leg 304 is adapted to be connected to the horn 2, the bottom end of the rear auxiliary leg 304 is adapted to be supported on an erected cap beam, the top ends of the front leg 301, the middle leg 302 and the rear leg 303 are adapted to be connected to the horn 2, and the bottom ends of the front leg 301, the middle leg 302 and the rear leg 303 are adapted to be supported on a ground support platform.
Referring to fig. 1-12, the support assembly 3 includes a front leg 301, a middle leg 302, a rear leg 303, and a rear auxiliary leg 304. The front leg 301, the middle leg 302, the rear leg 303 and the rear auxiliary leg 304 are arranged in a direction in which the horn 2 approaches the erected bridge. The rear auxiliary leg 304 is arranged in a shape like a Chinese character 'men', the upper side of the rear auxiliary leg 304 is suitable for being connected with the machine arm 2, and the bottom ends of the rear auxiliary leg 304 are suitable for being supported on the erected prefabricated capping beam 11. The front supporting leg 301, the middle supporting leg 302 and the rear supporting leg 303 are arranged in a shape like a Chinese character 'men', the upper sides of the front supporting leg 301, the middle supporting leg 302 and the rear supporting leg 303 are suitable for being connected with the machine arm 2, and the bottom ends of the front supporting leg 301, the middle supporting leg 302 and the rear supporting leg 303 are suitable for being supported on a bearing platform on the ground.
By the arrangement, the distance is reserved between the horn 2 and the ground under the support of the front supporting leg 301, the middle supporting leg 302, the rear supporting leg 303 and the rear auxiliary supporting leg 304 of the horn 2, and the prefabricated pier body 10 and the prefabricated cover beam 11 are conveniently hoisted to the required installation position on the horn 2 by the hoisting assembly 4.
Optionally, the front leg 301, the middle leg 302, the rear leg 303 and the rear auxiliary leg 304 are all provided with a lifting device 6, and the front leg 301, the middle leg 302, the rear leg 303 and the rear auxiliary leg 304 are all adapted to adjust the supporting height through the lifting device 6.
Referring to fig. 5 to 12, the front leg 301, the middle leg 302, the rear leg 303 and the rear auxiliary leg 304 are provided with a lifting device 6, and the lifting device 6 includes a hydraulic cylinder or a telescopic rod. The distance from the upper side of the front leg 301, the middle leg 302, the rear leg 303 and the rear auxiliary leg 304 to the ground is adjusted by the lifting device 6, and the height of the horn 2 from the ground is adjusted.
Set up like this, ground unevenness is at ordinary times, through preceding landing leg 301, well landing leg 302, landing leg 301 before adjusting respectively with the elevating gear 6 on the supplementary landing leg 304 of back landing leg 303, well landing leg 302, the supporting height of back landing leg 303 and back supplementary landing leg 304, and be convenient for make horn 2 maintain the level, and when setting up the bridge on the topography that has the slope, landing leg 301 before adjusting respectively through elevating gear 6, well landing leg 302, the supporting height of back landing leg 303 and back supplementary landing leg 304, the slope of horn 2 adaptation topography of being convenient for, it erects the construction to have made things convenient for prefabricated bridge to carry out on different topography, the slope of bridge is erect and is made things convenient for.
Alternatively, the top ends of the front leg 301, the middle leg 302 and the rear leg 303 are provided with a supporting and hanging wheel mechanism 7, the front leg 301, the middle leg 302 and the rear leg 303 are suitable for sliding relative to the machine arm 2 through the supporting and hanging wheel mechanism 7, or the front leg 301, the middle leg 302 and the rear leg 303 are suitable for driving the machine arm 2 to move through the supporting and hanging wheel mechanism 7.
Referring to fig. 5 to 12, the top ends of the front leg 301, the middle leg 302 and the rear leg 303 are provided with a suspension gear mechanism 7. The riding and hanging wheel mechanism 7 comprises a riding wheel and a hanging wheel, the riding wheel and the hanging wheel are both provided with driving pieces, and in the embodiment, the driving pieces comprise driving motors. The riding wheel abuts against the lower surface of the boom 2 to support the boom 2. The change gear is provided on the horn 2 to connect the front leg 301, the middle leg 302, and the rear leg 303 with the horn 2. When the front leg 301, the middle leg 302 and the rear leg 303 drive the horn 2 to move forward, that is, when the horn 2 moves longitudinally (Y-axis direction in the figure), the driving motors on the front leg 301, the middle leg 302 and the rear leg 303 drive the supporting rollers to rotate so as to drive the horn 2 to move longitudinally, thereby conveniently driving the horn 2 to perform via hole operation. When the front leg 301, the middle leg 302 and the rear leg 303 move longitudinally on the horn 2, the change gear on the front leg 301, the middle leg 302 and the rear leg 303 rotates to drive the front leg 301, the middle leg 302 and the rear leg 303 to move longitudinally on the horn 2, so that the positions of the front leg 301, the middle leg 302 and the rear leg 303 on the horn 2 can be adjusted conveniently.
Be equipped with articulated seat on the supplementary landing leg 304 of back, supplementary landing leg 304 of back links to each other with horn 2 through articulated seat, and the supplementary landing leg 304 of back of being convenient for supports horn 2.
With this arrangement, the front leg 301, the middle leg 302 and the rear leg 303 support the boom 2 through the riding wheel mechanism 7, and the rear auxiliary leg 304 supports the boom 2 through the hinge base. When the hole passing operation of the horn 2 is performed, the riding wheels of the riding wheel mechanisms 7 on the front supporting leg 301, the middle supporting leg 302 and the rear supporting leg 303 rotate to drive the horn 2 to longitudinally move, so that the horn 2 is conveniently driven to longitudinally move to the position where the prefabricated pier body 10 and the prefabricated bent cap 11 need to be installed. After the horn 2 is longitudinally moved, the front supporting leg 301, the middle supporting leg 302 and the rear supporting leg 303 lift the hanging wheels of the hanging wheel mechanism 7 to respectively drive the front supporting leg 301, the middle supporting leg 302 and the rear supporting leg 303 to move to new supporting positions, so that the horn 2 is conveniently and stably supported.
Optionally, the horn 2 includes a first main beam and a second main beam, the sides of the first main beam and the second main beam facing away from each other are provided with a first rail 201, the sides of the first main beam and the second main beam facing towards each other are provided with a second rail 202, and the suspension wheel mechanism 7 is adapted to be slidably disposed on the first rail 201 and/or the second rail 202.
Referring to fig. 15 and 16, the horn 2 is a double main beam structure, and the horn 2 includes a first main beam and a second main beam. The first main beam and the second main beam are located at the same height and are arranged in parallel. The side that first girder and second girder deviate from each other all is equipped with first track 201. The side that first girder and second girder faced each other all is equipped with second track 202, and the length direction of first track 201 and second track 202 all is unanimous with the length direction of horn 2, and first track 201 and the downside setting that second track 202 is close to horn 2. Two third rails 203 are arranged on the lower side surfaces of the first main beam and the second main beam, the length direction of the third rails 203 is consistent with the length direction of the horn 2, and the two third rails 203 on the first main beam or the second main beam are arranged in parallel. The first rail 201, the second rail 202 and the third rail 203 are all integrally formed with the horn 2 or welded and fixed on the horn 2, and in this embodiment, the first rail 201, the second rail 202 and the third rail 203 are all welded and fixed on the horn 2.
The idler of the idler mechanism 7 is adapted to move between the two third rails 203, limiting the direction of movement of the idler. The change gear of the suspension gear mechanism 7 is suitable for rolling on the upper side of the first track 201 and/or the second track 202, and the change gear is hung on the first track 201 and/or the second track 202, so that the change gear drives the front support leg 301, the middle support leg 302 and the rear support leg 303 to move longitudinally. In this embodiment, the front leg 301, the middle leg 302, and the rear leg 303 roll on the first rail 201 and the second rail 202 while riding on the change gear of the change gear mechanism 7.
By the arrangement, the riding wheel in the riding and hanging wheel mechanism 7 rolls between the third rails 203 on the lower side surface of the machine arm 2, the riding wheel is limited in moving direction, and is not easy to separate from the machine arm 2, the front supporting leg 301, the middle supporting leg 302 and the rear supporting leg 303 are firmly supported on the machine arm 2 through the riding wheel, when the machine arm 2 is driven by the riding wheel to move longitudinally, the riding wheel is not easy to move, the machine arm 2 is more stable when moving longitudinally, and the machine arm 2 is not easy to lose support. The change gear of the riding gear mechanism 7 moves on the first rail 201 and the second rail 202, and similarly, the change gear is restricted on the first rail 201 and the second rail 202, and the front leg 301, the middle leg 302, and the rear leg 303 are not easily separated from the horn 2, thereby maintaining the connection stability of the front leg 301, the middle leg 302, and the rear leg 303 with the horn 2. When preceding landing leg 301, well landing leg 302 and back landing leg 303 indulge and move, the change gear moves on first track 201 and second track 202, and the moving direction of change gear is restricted, and preceding landing leg 301, well landing leg 302 and back landing leg 303 are difficult for squinting at the in-process of indulging moving, has made things convenient for the accurate position of indulging preceding landing leg 301, well landing leg 302 and back landing leg 303, has made things convenient for preceding landing leg 301, well landing leg 302 and the follow-up stable support to horn 2 of back landing leg 303.
Optionally, a locking device 8 is further included, the locking device 8 is disposed on the front leg 301, the middle leg 302 and the rear leg 303, and the locking device 8 is used for limiting the movement of the front leg 301, the middle leg 302 and the rear leg 303 relative to the horn 2.
Referring to fig. 5 to 11, the front leg 301, the middle leg 302 and the rear leg 303 are further provided with a locking device 8, and the locking device 8 is used for limiting the relative movement of the front leg 301, the middle leg 302 and the rear leg 303 with respect to the horn 2. The locking means 8 comprises a transverse locking latch which extends to secure the suspension gear mechanism 7 to the horn 2 and to restrict movement of the front 301, middle 302 and rear 303 legs relative to the horn 2.
By the arrangement, when the machine arm 2 longitudinally moves, the transverse locking bolt of the locking device 8 is taken out, so that the supporting wheel can drive the machine arm 2 to longitudinally move conveniently, and the longitudinal moving process of the machine arm 2 is completed. When the front supporting leg 301, the middle supporting leg 302 and the rear supporting leg 303 move longitudinally, the transverse locking bolt is taken out, so that the front supporting leg 301, the middle supporting leg 302 and the rear supporting leg 303 are driven by the change gear to move longitudinally. When the front supporting leg 301, the middle supporting leg 302 and the rear supporting leg 303 support the horn 2, the transverse locking bolt is inserted to limit the relative movement of the riding wheel mechanism 7 and the horn 2, at this time, the front supporting leg 301, the middle supporting leg 302, the rear supporting leg 303 and the horn 2 are integrated, the front supporting leg 301, the middle supporting leg 302 and the rear supporting leg 303 support the horn 2 more stably, and the situation that the horn 2 moves during supporting is not easy to exist.
Optionally, the bridge girder erection machine is adapted to hoist the prefabricated box girders simultaneously when the pier erecting machine passes through the hole.
When the pier erecting machine passes through the hole, namely after the pier erecting machine is erected to complete the prefabricated pier body and the prefabricated capping beam, the prefabricated pier body and the prefabricated capping beam are continuously erected by forward movement, and when the hole passes through, the bridge erecting machine simultaneously hoists the prefabricated box beam.
Set up like this, when frame mound machine via hole, the prefabricated box girder of frame bridge crane hoist simultaneously, and both mutual independence work has improved the efficiency of construction.
Another embodiment of the present invention provides a method for joint construction of a fully precast bridge pier and a bridge, which uses the above-described joint construction equipment for a fully precast bridge pier and a bridge, and includes:
step A, after on-line equipment and on-line lower support of pier and bridge combined construction equipment are in place, a bridge girder erection machine 1 of the on-line equipment lifts and transports a prefabricated pier body 10 to a transfer assembly 5 of the off-line equipment;
step B, the prefabricated pier body 10 is transferred to the lifting position of a lifting assembly 4 of the off-line equipment by a front auxiliary trolley 501 and a rear auxiliary trolley 502 of the transfer assembly 5, the prefabricated pier body 10 is transferred to the installation position by the lifting assembly 4, and the transfer assembly 5 retreats and carries and transfers the prefabricated bent cap 11;
step C, after the front frame pier gantry crane 401 and the rear frame pier gantry crane 402 of the hoisting assembly 4 are matched to hoist the prefabricated pier body 10 to an inclined state, the hoisting state of the rear frame pier gantry crane 402 is released, the prefabricated pier body 10 is installed by the front frame pier gantry crane 401, the rear frame pier gantry crane 402 retreats to a hoisting position, and the prefabricated cover beam 11 transported by the transporting assembly 5 is hoisted;
and D, the front frame pier gantry crane 401 moves forwards to make the prefabricated cover beam 11 installation space available, and the rear frame pier gantry crane 402 hoists the prefabricated cover beam 11 to the installation position for installation.
Referring to fig. 17 and 18, in step a, after the on-line equipment and the on-line lower support of the pier and bridge combined construction equipment are in place, that is, the bridge girder erection machine 1 is located on the erected bridge, and the pier erection machine is stably supported on the ground bearing platform through the support assembly 3. The transport vehicle 9 transports the prefabricated pier body 10 and the prefabricated bent cap 11 from the erected bridge to the lower part of the bridge girder erection machine 1, the bridge girder erection machine 1 lifts the prefabricated pier body 10 to the front auxiliary trolley 501 and the rear auxiliary trolley 502 of the transfer assembly 5, and the lifting trolley 101 on the bridge girder erection machine 1 returns to prepare for lifting the prefabricated bent cap 11 on the transport vehicle 9.
Referring to fig. 19-23, in step B, the front auxiliary trolley 501 and the rear auxiliary trolley 502 of the transfer assembly 5 transfer the prefabricated pier body 10 to the lifting positions of the front pier gantry crane 401 and the rear pier gantry crane 402 of the off-line equipment, the front pier gantry crane 401 and the rear pier gantry crane 402 transfer the prefabricated pier body 10 to the installation position, and at this time, the front auxiliary trolley 501 and the rear auxiliary trolley 502 retreat and receive and transfer the prefabricated cover beam 11.
Referring to fig. 21-24, in step C, after the front pier gantry crane 401 and the rear pier gantry crane 402 of the hoisting assembly 4 cooperate to hoist the prefabricated pier body 10 to an inclined state, the hoisting state of the rear pier gantry crane 402 is released, the prefabricated pier body 10 is installed by the front pier gantry crane 401, the rear pier gantry crane 402 retreats to a hoisting position, and the prefabricated bent cap 11 transported by the front auxiliary trolley 501 and the rear auxiliary trolley 502 is hoisted.
Referring to fig. 24, in step D, the front frame pier gantry crane 401 moves forward to make room for installing the prefabricated capping beam 11, and the rear frame pier gantry crane 402 hoists the prefabricated capping beam 11 to an installation position for installation.
And D, repeating the steps A-D to finish the installation of the prefabricated pier body 10 and the prefabricated bent cap 11 of the next hole.
By means of the arrangement, the front auxiliary trolley 501 and the rear auxiliary trolley 502 in the transfer assembly 5 link the on-line equipment and the off-line equipment through transferring the prefabricated pier body 10 and the prefabricated cover beam 11, so that the prefabricated pier body 10 and the prefabricated cover beam 11 are integrated in the construction process, the prefabricated pier body 10 and the prefabricated cover beam 11 are convenient to transport, and the installation of the prefabricated pier body 10 and the prefabricated cover beam 11 is not easily influenced by the construction terrain and environment. Meanwhile, the prefabricated pier body 10 and the prefabricated bent cap 11 are continuously constructed, so that the construction efficiency is high.
Optionally, the method further comprises:
step E, after the prefabricated pier body 10 and the prefabricated bent cap 11 are installed, the front supporting leg 301, the middle supporting leg 302 and the rear supporting leg 303 of the offline device and a ground bearing platform are in a stable supporting state, the rear auxiliary supporting leg 304 of the offline device is suspended, and the hanging wheel mechanism 7 on the front supporting leg 301 and the rear supporting leg 303 drives the machine arm 2 to move to a preset position;
step F, the rear supporting leg 303 is contracted to be in a suspended state, and the rear supporting leg 303 moves to a specified position through the supporting and hanging wheel mechanism 7 and is supported on the ground bearing platform;
g, the middle supporting leg 302 is contracted to be in a suspended state, and the middle supporting leg 302 moves to a specified position through the riding and hanging wheel mechanism 7 and is supported on a ground bearing platform;
step H, the supporting and hanging wheel mechanisms 7 on the front supporting leg 301 and the rear supporting leg 303 drive the machine arm 2 to move forwards again until the rear auxiliary supporting leg 304 moves to the preset position;
step I, the front supporting legs 301 are contracted to be in a suspended state, and the front supporting legs 301 are moved to a preset position on the machine arm 2 and then are supported on a ground bearing platform;
step J, the middle supporting leg 302 is retracted to be in a suspended state, and the middle supporting leg 302 is supported on the ground bearing platform after moving to a preset position on the machine arm 2.
Wherein, the steps E to J are specifically as follows:
referring to fig. 25 to 27, after the prefabricated pier body 10 and the prefabricated bent cap 11 are installed in step E, the front leg 301, the middle leg 302 and the rear leg 303 of the offline device are in a stable supporting state, the rear auxiliary leg 304 of the offline device is suspended, and the suspension wheel mechanism 7 on the front leg 301 and the rear leg 303 drives the jib 2 to move to a predetermined position.
Referring to fig. 28, in step F, the rear leg 303 is retracted to be suspended, the boom 2 is supported by the front leg 301 and the middle leg 302, and the rear leg 303 is moved to a predetermined position by the suspension mechanism 7 and supported on the floor platform.
Referring to fig. 29, step G, the middle leg 302 is retracted to be suspended, the boom 2 is supported by the front leg 301 and the rear leg 303, and the middle leg 302 is moved to a predetermined position by the suspension mechanism 7 and supported on the ground platform.
Referring to fig. 30, step H, the front supporting leg 301 and the supporting wheel mechanism 7 on the rear supporting leg 303 again drive the machine arm 2 to move forward until the rear auxiliary supporting leg 304 moves to the preset position.
Referring to fig. 31, in step I, the front leg 301 is retracted to a suspended state, the boom 2 is supported by the middle leg 302 and the rear leg 303, and the front leg 301 moves to a preset position on the boom 2 and then is supported on the ground platform;
referring to fig. 32, step J, the middle leg 302 is retracted to be suspended, the boom 2 is supported by the front leg 301 and the rear leg 303, and the middle leg 302 moves to a predetermined position on the boom 2 and then is supported on the ground platform.
Referring to fig. 33, the above steps E to J are repeated, and the horn 2 completes the next via hole operation.
With the arrangement, when the horn 2 passes through the hole, the front support leg 301, the middle support leg 302 and the rear support leg 303 alternately support each other, when the front support leg 301, the middle support leg 302 and the rear support leg 303 longitudinally move in sequence, the horn 2 is still stably supported, and the safety is high when the horn 2 passes through the hole.
Referring to fig. 34 to 37, in the present embodiment, it is preferable that: the steps A-D are repeated to finish the construction of the prefabricated pier body 10 and the prefabricated bent cap 11 at three positions, the steps E-J are repeated to finish the three-time hole passing operation of the machine arm 2, and the bridge girder erection machine 1 of the on-line equipment finishes the erection process of the prefabricated box girder when the machine arm 2 performs the hole passing operation, so that the construction efficiency of the prefabricated bridge girder is greatly improved.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.
Claims (11)
1. The combined construction equipment for the full-prefabricated bridge pier and the bridge is characterized by comprising on-line equipment and off-line equipment; the on-line equipment comprises a bridge girder erection machine (1), wherein the bridge girder erection machine (1) is suitable for being supported on an erected bridge, and the bridge girder erection machine (1) is used for erecting a prefabricated box girder or lifting a prefabricated pier body (10) and a prefabricated cover beam (11) to the off-line equipment; the off-line equipment comprises a pier erecting machine which is suitable for receiving and hoisting the prefabricated pier body (10) and the prefabricated capping beam (11) hoisted by the bridge erecting machine (1).
2. The full precast bridge pier and bridge combined construction equipment according to claim 1, wherein the pier erecting machine comprises a machine arm (2), a support assembly (3), a hoisting assembly (4) and a transfer assembly (5), the support assembly (3) is used for supporting the machine arm (2), the transfer assembly (5) is connected to the machine arm (2) in a sliding mode, and the transfer assembly (5) is used for receiving the precast pier body (10) and the precast capping beam (11) and transferring the precast pier body (10) and the precast capping beam (11) to a hoisting position of the hoisting assembly (4); hoisting assembly (4) sliding connection in horn (2), hoisting assembly (4) are used for the hoist and mount prefabricated pier shaft (10) with prefabricated bent cap (11).
3. The full precast bridge pier and bridge combined construction equipment according to claim 2, wherein the transfer assembly (5) comprises a front auxiliary trolley (501) and a rear auxiliary trolley (502), and the front auxiliary trolley (501) and the rear auxiliary trolley (502) are both slidably connected to the horn (2) and are adapted to move along the length direction of the horn (2).
4. The fully precast bridge pier and bridge combined construction equipment according to claim 3, wherein the hoisting assembly (4) comprises a front frame pier gantry crane (401) and a rear frame pier gantry crane (402), the front frame pier gantry crane (401) and the rear frame pier gantry crane (402) are both connected to the machine arm (2) in a sliding manner and are suitable for moving along the length direction of the machine arm (2), and the front frame pier gantry crane (401) and the rear frame pier gantry crane (402) are used for hoisting the precast pier body (10) and the precast cover beam (11) transported by the front auxiliary trolley (501) and the rear auxiliary trolley (502).
5. The combined construction equipment for full precast bridge piers and bridges according to claim 2, wherein the support assembly (3) comprises a front support leg (301), a middle support leg (302), a rear support leg (303) and a rear auxiliary support leg (304), wherein the top end of the rear auxiliary support leg (304) is adapted to be connected with the horn (2), the bottom end of the rear auxiliary support leg (304) is adapted to be supported on the erected cap beam, the top ends of the front support leg (301), the middle support leg (302) and the rear support leg (303) are adapted to be connected with the horn (2), and the bottom ends of the front support leg (301), the middle support leg (302) and the rear support leg (303) are adapted to be supported on a ground bearing platform.
6. The fully precast bridge pier and bridge joint construction equipment according to claim 5, wherein lifting devices (6) are arranged on the front support leg (301), the middle support leg (302), the rear support leg (303) and the rear auxiliary support leg (304), and the front support leg (301), the middle support leg (302), the rear support leg (303) and the rear auxiliary support leg (304) are suitable for adjusting the supporting height through the lifting devices (6).
7. The combined construction equipment for the full precast bridge piers and bridges as claimed in claim 6, wherein a riding and hanging wheel mechanism (7) is arranged at the top end of each of the front support leg (301), the middle support leg (302) and the rear support leg (303), the front support leg (301), the middle support leg (302) and the rear support leg (303) are suitable for sliding relative to the horn (2) through the riding and hanging wheel mechanism (7), or the front support leg (301), the middle support leg (302) and the rear support leg (303) are suitable for driving the horn (2) to move through the riding and hanging wheel mechanism (7).
8. The full precast bridge pier and bridge joint construction equipment according to claim 7, further comprising a locking device (8), wherein the locking device (8) is arranged on the front leg (301), the middle leg (302) and the rear leg (303), and the locking device (8) is used for limiting the movement of the front leg (301), the middle leg (302) and the rear leg (303) relative to the horn (2).
9. The full precast bridge pier and bridge combined construction equipment according to any one of claims 1 to 8, wherein the bridge girder erection machine (1) is adapted to hoist the precast box girders simultaneously when the pier erection machine passes through a hole.
10. A combined construction method of a fully precast bridge pier and bridge girder, which adopts the combined construction equipment of the fully precast bridge pier and bridge girder as claimed in any one of claims 1 to 9, and is characterized by comprising the following steps:
step A, after on-line equipment and on-line lower support of the pier and bridge combined construction equipment are in place, a bridge girder erection machine (1) of the on-line equipment hoists a prefabricated pier body (10) to a transfer assembly (5) of the off-line equipment;
b, the transfer assembly (5) transfers the prefabricated pier body (10) to a lifting position of a lifting assembly (4) of the off-line equipment, the lifting assembly (4) conveys the prefabricated pier body (10) to an installation position, and the transfer assembly (5) retreats and carries and transfers the prefabricated bent cap (11);
c, after a front frame pier gantry crane (401) and a rear frame pier gantry crane (402) of the hoisting assembly (4) are matched to hoist the prefabricated pier body (10) to an inclined state, the hoisting state of the rear frame pier gantry crane (402) is released, the prefabricated pier body (10) is installed by the front frame pier gantry crane (401), the rear frame pier gantry crane (402) retreats to a hoisting position, and the prefabricated cover beam (11) transported by the transporting assembly (5) is hoisted;
and D, the front frame pier gantry crane (401) moves forwards to allow the prefabricated cover beam (11) to be installed, and the rear frame pier gantry crane (402) hoists the prefabricated cover beam (11) to an installation position for installation.
11. The full precast bridge pier and bridge combined construction method according to claim 10, further comprising:
step E, after the prefabricated pier body (10) and the prefabricated bent cap (11) are installed, a front supporting leg (301), a middle supporting leg (302) and a rear supporting leg (303) of the offline device are in a stable supporting state with a ground bearing platform, a rear auxiliary supporting leg (304) of the offline device is suspended in the air, and a hanging wheel mechanism (7) on the front supporting leg (301) and the rear supporting leg (303) drives a machine arm (2) to move to a preset position;
f, the rear supporting leg (303) is retracted to a suspended state, and the rear supporting leg (303) moves to a specified position through a supporting and hanging wheel mechanism (7) and is supported on a ground bearing platform;
g, the middle supporting leg (302) is contracted to be in a suspended state, and the middle supporting leg (302) moves to a specified position through the supporting and hanging wheel mechanism (7) and is supported on the ground bearing platform;
step H, driving the horn (2) to move forwards again by a hanging wheel mechanism (7) on the front supporting leg (301) and the rear supporting leg (303) until the rear auxiliary supporting leg (304) moves to a preset position;
step I, the front supporting leg (301) is contracted to be in a suspended state, and the front supporting leg (301) is moved to a preset position on the machine arm (2) and then is supported on a ground bearing platform;
and J, the middle supporting leg (302) is contracted to be in a suspended state, and the middle supporting leg (302) is moved to a preset position on the machine arm (2) and then is supported on a ground bearing platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011459025.XA CN112554068A (en) | 2020-12-11 | 2020-12-11 | Combined construction equipment and construction method for fully-prefabricated bridge pier and bridge |
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| CN202011459025.XA CN112554068A (en) | 2020-12-11 | 2020-12-11 | Combined construction equipment and construction method for fully-prefabricated bridge pier and bridge |
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| CN202011459025.XA Pending CN112554068A (en) | 2020-12-11 | 2020-12-11 | Combined construction equipment and construction method for fully-prefabricated bridge pier and bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116119540A (en) * | 2022-12-01 | 2023-05-16 | 中铁广州工程局集团有限公司 | Water hoisting machine system and transfer method thereof |
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2020
- 2020-12-11 CN CN202011459025.XA patent/CN112554068A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116119540A (en) * | 2022-12-01 | 2023-05-16 | 中铁广州工程局集团有限公司 | Water hoisting machine system and transfer method thereof |
| CN116119540B (en) * | 2022-12-01 | 2024-04-05 | 中铁广州工程局集团有限公司 | Water hoisting machine system and transfer method thereof |
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