CN113445426A - Construction device and construction method for upper bridge tower of cable-stayed bridge - Google Patents
Construction device and construction method for upper bridge tower of cable-stayed bridge Download PDFInfo
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- CN113445426A CN113445426A CN202110758387.7A CN202110758387A CN113445426A CN 113445426 A CN113445426 A CN 113445426A CN 202110758387 A CN202110758387 A CN 202110758387A CN 113445426 A CN113445426 A CN 113445426A
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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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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Abstract
本申请涉及一种斜拉桥上部桥塔施工装置及施工方法，其包括：轨道，其用于设置在已架的下游塔肢一侧，并沿着下游塔肢的长度方向延伸；桁架座，其滑设在轨道上，其顶部形成用于放置待架桥塔节段的平台部；桁架座与轨道连接的一面为倾斜部，倾斜部用于和下游塔肢贴合；驱动装置用于沿所述轨道的延伸方向移动所述桁架座。通过设置沿下游塔肢延伸方向分布的轨道，并用驱动装置进行整体移动桁架座上的待架桥塔节段，此方式的顶升动力在待架桥塔节段的下方，避免采用大吨位的起吊设备，利用已架钢塔自身的刚度为轨道提供了稳定的安装位置和空间，待架桥塔节段采用整节段的吊装方式，加快施工的进度。
The present application relates to a construction device and a construction method for an upper tower of a cable-stayed bridge, comprising: a track, which is arranged on one side of a downstream tower leg that has already been erected and extends along the length direction of the downstream tower leg; a truss seat, It is slidably arranged on the track, and its top forms a platform part for placing the tower segment to be erected; the side where the truss seat is connected to the track is an inclined part, and the inclined part is used to fit the downstream tower limb; the driving device is used to The extension direction of the rail moves the truss seat. By setting the track distributed along the extension direction of the downstream tower limb, and using the driving device to move the segment of the tower to be erected on the truss seat as a whole, the jacking power of this method is below the segment of the tower to be erected, avoiding the use of large tonnage. The hoisting equipment utilizes the rigidity of the already erected steel tower to provide a stable installation position and space for the track, and the segment of the tower to be erected adopts the whole-segment hoisting method to speed up the construction progress.
Description
Technical Field
The application relates to the field of bridge installation and construction, in particular to a construction device and a construction method for an upper bridge tower of a cable-stayed bridge.
Background
With the rapid development of bridge technology, the steel-concrete structure is widely applied to bridge construction, and compared with a concrete structure, the steel-concrete structure bridge can effectively reduce the dead weight of the bridge structure; and the method also has the advantages of large torsional rigidity, high material strength, convenient processing, short construction period, small influence on the environment around the construction area and the like.
In some related arts, the main forms of steel-concrete structural bridges are steel arch bridges, composite structure cable-stayed bridges, composite structure suspension bridges, and steel girder bridges. Wherein cable-stay bridge mainly includes main tower pylon bridge tower festival section, girder, bridge floor, suspension cable, carries out whole or segmentation jacking steel tower usually when the installation pylon, and concrete mode is as follows: transporting the steel tower to an installation site from a steel bridge deck by using a beam transporting vehicle, and arranging hoisting equipment such as a gantry crane and the like; installing and connecting a steel tower and hoisting equipment, jacking the steel tower to a corresponding height, transversely moving the steel tower to the installation position of the main tower, performing matching connection of bridge steel and the lower section of the main tower, and installing the next section of the steel tower after matching is completed; or integrally machining and forming the steel tower and then integrally hoisting by utilizing hoisting equipment.
However, when hoisting integrally or sectionally, large-tonnage hoisting mechanical equipment is needed, the cost is high, in addition, the hoisting operation at high altitude is generally carried out, the hoisting operation at high altitude is easy to shake in windy weather or during hoisting at high altitude, and the field butt joint difficulty and the operation danger coefficient are high.
Disclosure of Invention
The embodiment of the application provides a construction device and a construction method for an upper bridge tower of a cable-stayed bridge, and aims to solve the problem that in the related art, the safety of hoisting the bridge tower by hoisting equipment in a high-altitude strong wind environment is poor.
In a first aspect, a cable-stayed bridge upper bridge tower construction device is provided, which comprises:
a rail for being disposed on one side of the erected downstream tower and extending in a length direction of the downstream tower;
the truss seat is arranged on the track in a sliding mode, and the top of the truss seat forms a platform part for placing the tower section to be bridged; one surface of the truss seat, which is connected with the track, is an inclined part, and the inclined part is used for being attached to a downstream tower limb;
a drive device for moving the truss mount along the extension direction of the rail.
In some embodiments, the drive means is adapted to be mounted on top of the downstream tower limb and connected to the truss mount by a wire rope, the drive means being wound up on the wire rope to lift the truss mount; or the like, or, alternatively,
the driving device is arranged on the track, is positioned below the truss seat and is used for jacking the truss seat; the driving device includes:
a truss mount locking assembly mounted on the incline and lockable to the track;
the driving assembly is positioned below the truss seat locking assembly and is arranged along the length direction of the track; the top of the driving assembly is connected with the truss seat, and the bottom of the driving assembly can be locked on the track; when the driving assembly jacks the truss seat to a stroke, the truss seat locking assembly is locked on the track, the bottom of the driving assembly is unlocked from the track and moves upwards until the stroke is reset, and the driving assembly is locked with the track again.
In some embodiments, the truss mount locking assembly comprises:
at least one first plug member which is mounted on the inclined portion and the plug end of which is retractable;
the track is equipped with the locking hole along its length direction, works as the plug end of first plug spare wears to establish in proper order during rake and locking hole, the position locking of truss seat.
In some embodiments, the drive assembly comprises:
a movable seat;
the second plug-pull piece is arranged on the movable seat, and the plug-pull end of the second plug-pull piece can be retracted; the second plug-pull piece connects the movable seat to the track;
the bottom of the jack is connected with the movable seat, and the top of the jack is connected with the truss seat; when the plug end of the second plug piece penetrates through the movable seat and the locking hole, the position of the movable seat is locked.
In some embodiments, the platform portion is provided with a translation assembly for translating the tower section to be bridged.
In some embodiments, the translation assembly comprises:
the transfer slide way is arranged on the platform part and is used for enabling the tower section to be bridged to move along the length direction of the tower section;
the base blocks are divided into two rows, and are symmetrically distributed on two sides of the transfer slide way by taking a central shaft in the length direction of the transfer slide way as a symmetry axis;
and the telescopic limiting part is arranged on the base blocks and is used for pressing or loosening the bridge tower section to be erected between the two rows of the base blocks.
In some embodiments, the telescopic limiter comprises:
a hydraulic cylinder mounted on the base block;
and the limiting block is arranged at the output end of the hydraulic cylinder and is a pressing block or a clamping block with a clamping space.
In some embodiments, the transfer chute is a chute; and/or the presence of a gas in the gas,
the transfer slide is a slide rail, and a connecting piece used for detachably connecting with the tower section to be bridged is arranged on the slide rail.
In some embodiments, the translation assembly further comprises a horizontal pusher disposed on the platform portion for moving the tower section to be bridged along the length of the transfer chute.
In a second aspect, a method for constructing an upper bridge tower of a cable-stayed bridge is provided, which comprises the following steps:
providing a construction device of an upper bridge tower of the cable-stayed bridge, and installing the construction device on one side of the erected downstream tower limb;
placing the truss seat at the bottom of the erected downstream tower limb, and fixing the tower section to be erected on the platform part of the truss seat;
jacking the truss seat by using a driving device to enable the tower section to be bridged to reach an appointed position;
and arranging a transfer device at the top of the downstream tower limb, moving the tower section to be bridged to the top mounting position of the downstream tower limb, and welding.
The beneficial effect that technical scheme that this application provided brought includes: the embodiment of the application provides a construction device for a bridge tower at the upper part of a cable-stayed bridge, because a track inclined along the extending direction of a lower tower limb is arranged on the lower tower limb, a truss seat is arranged on the track, and a driving device is used for moving a tower section to be bridged on the truss seat, so that the tower section to be bridged moves along the track, and can not be influenced by wind waves in the high-altitude moving process to generate deviation; in addition, the top of the truss seat forms a platform part for placing the tower section to be bridged, one side of the truss seat connected with the track is an inclined part which is used for being attached to a downstream tower limb, and the downstream tower limb is in an inclined state.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of a device for constructing an upper bridge tower of a cable-stayed bridge according to an embodiment of the present disclosure, for jacking a bridge tower segment to be erected;
FIG. 2 is an elevation view of a truss mount, drive arrangement and translation assembly provided in accordance with an embodiment of the present application;
FIG. 3 is a right side view of the truss mount, drive arrangement and translation assembly provided in accordance with an embodiment of the present application;
fig. 4 is a connection structure diagram of a first plug member and a track according to an embodiment of the present disclosure.
In the figure: 1. a track; 10. a locking hole; 2. a downstream tower limb; 3. a truss mount; 30. an inclined portion; 4. a tower section to be bridged; 5. a drive device; 51. a truss mount locking assembly; 510. a first plug-pull member; 52. a drive assembly; 520. a movable seat; 521. a second plug-pull member; 522. a jack; 6. moving the component; 60. a base block; 61. a telescopic limiting part; 610. a hydraulic cylinder; 611. a limiting block; 62. a transfer chute; 63. a horizontal pusher.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
A construction device and a construction method for an upper bridge tower of a cable-stayed bridge are used for solving the problem that in the related art, the safety of hoisting the bridge tower by hoisting equipment in a high-altitude strong wind environment is poor.
Referring to fig. 1, 2 and 3, there is provided an upper pylon construction apparatus of a cable-stayed bridge, including: the device comprises a track 1, a truss seat 3 and a driving device 5; wherein the track 1 is arranged at one side of the erected downstream limb 2 and extends along the length direction of the downstream limb 2; the truss seat 3 is arranged on the track 1 in a sliding mode, a platform part used for placing a tower section 4 to be bridged is formed at the top of the truss seat, the platform part is arranged horizontally, an inclined part 30 is arranged on one side, connected with the track 1, of the truss seat 3, a sliding groove used for allowing the truss seat to pass through the track 1 is formed in the inclined part 30, and the inclined part 30 is used for being attached to a downstream tower limb 2;
the drive means 5 are adapted to move the truss mount 3 in the extension direction of the track 1.
Through the arrangement of the structure, when the tower section 4 to be bridged is moved, the tower section 4 to be bridged moves along the track 1 and is not influenced by wind waves in the high-altitude moving process to generate deviation, compared with a mode of hoisting and lifting through the hoisting device, the mode does not need to carry out counterweight balance, and the strength requirement on the hoisting position is avoided; the jacking power is positioned below, so that the driving device is convenient to mount and apply force to the truss seat 3.
In addition, the platform part formed at the top of the truss seat 3 is used for placing the tower section 4 to be erected, one side connected with the track 1 is the inclined part 30, the inclined part 30 is attached to the downstream tower limb 2, and according to the structural arrangement, according to stress analysis, the truss seat 3 and one part of the gravity of the tower section 4 to be erected act on the downstream tower limb 2, so that the truss seat 3 is more stably arranged on the downstream tower limb and moves along the track 1, the bearing capacity of the driving device is reduced, the load of the driving device is reduced, and jacking is facilitated.
In some preferred embodiments, the driving device 5 is mounted on top of the downstream tower limb 2 and connected to the truss mount 3 by means of steel cables, the driving device 5 winding up the steel cables and lifting the truss mount 3, using this wound-up and lifted lay-down type, is more adaptable to long distance transportation and transportation of heavy weight segments.
As shown in fig. 2-4, in some preferred embodiments, the driving device 5 is installed on the track 1 and below the truss mount 3 for lifting the truss mount 3 along the extending direction of the track 1, so that the lifting power is located below, the driving manner is stable, and in consideration of the special nature of the high-altitude operation, the stroke of the ordinary driving device is limited, and the following settings are performed on the driving device 5:
the driving device 5 comprises a truss mount locking assembly 51 and a driving assembly 52, wherein the truss mount locking assembly 51 is installed on the inclined part 30 and can be locked on the track 1; the driving assembly 52 is positioned below the truss mount locking assembly 51 and arranged along the length direction of the track 1, the top of the driving assembly is connected with the truss mount 3, and the bottom of the driving assembly can be locked on the track 1.
When the truss mount 3 is lifted up, the bottom of the driving unit 52 is locked to the rail 1, the truss mount locking unit 51 is unlocked from the rail 1, and the driving unit 52 lifts up the truss mount 3.
When the driving assembly 52 lifts the truss seat 3 to a stroke, the truss seat locking assembly 51 is locked on the track 1 to fix the position of the truss seat 3, the bottom of the driving assembly 52 is unlocked from the track 1 and moves upwards, and after resetting is completed, the driving assembly is locked with the track 1 again.
Further, as shown in fig. 4, the truss mount locking assembly 51 includes at least two first plug members 510 mounted on the inclined portion 30 and having retractable plug ends; the track 1 is provided with a locking hole 10 along the length direction thereof, and when the plugging end of the first plugging member 510 sequentially penetrates through the inclined part 30 and the locking hole 10, the position of the truss seat 3 is locked.
The number of the first plug members 510 is determined to be more than that of the rails 1, when one rail 1 is provided, the number of the first plug members 510 is at least one, but a plurality of first plug members 510 are generally arranged on the upper side and the lower side of the inclined portion 30 to ensure safety, so that stability is ensured.
When the rail 1 is a plurality of rails, at least two first inserting/extracting members 510 are respectively correspondingly distributed on two sides of the inclined portion 30 and are inserted into the rail 1 contacting with the two sides of the inclined portion 30.
Further, as shown in fig. 3, the driving assembly 52 includes a moving base 520, a second plug 521 and a jack 522, the moving base 520 can slide on the rail 1, the second plug 521 is mounted on the moving base 520, and the plug end can be retracted, the second plug 521 connects the moving base 520 to the rail 1; the jack 522 is connected to the moving base 520 at the bottom and to the truss base 3 at the top.
When the plugging end of the second plugging member 521 penetrates through the moving seat 520 and the locking hole 10, the position of the moving seat 520 is locked; when the plugging end is contracted, the movable base 520 is unlocked.
As shown in fig. 2 and 3, the platform part of the truss mount 3 is provided with a translation assembly 6 for the tower section 4 to be bridged, and the translation assembly 6 is used for transferring the tower section 4 to be bridged to the top of the downstream tower limb 2.
The translation assembly 6 comprises a transfer slideway 62, a base block 60 and a telescopic limiting piece 61; wherein the transfer slideway 62 is arranged on the platform part and is used for moving the tower section 4 to be bridged along the length direction thereof;
the plurality of base blocks 60 are divided into two rows, and are symmetrically distributed on two sides of the transfer slide way 62 by taking the central axis in the length direction of the transfer slide way 62 as a symmetry axis; the telescopic limiting pieces 61 are installed on the base blocks 60 and used for pressing or loosening the tower sections 4 to be bridged between the two rows of the base blocks 60.
When the tower section 4 to be bridged is jacked, the telescopic limiting piece 61 compresses the tower section 4 to be bridged to avoid shaking; when the tower segment 4 to be bridged is to be moved, the telescopic limiting part 61 is loosened, so that the tower segment 4 to be bridged slides in the transfer slideway 62.
And a plurality of base blocks 60 set up, make to have a plurality of flexible locating part 61, further strengthen the safety and stability of treating tower section 4 of building a bridge, can not rock at the jacking in-process.
Further, the telescopic limiting member 61 includes a hydraulic cylinder 610 and a limiting block 611, the hydraulic cylinder 610 is installed on the base block 60, the limiting block 611 is installed on the output end of the hydraulic cylinder 610, and the limiting block 611 has the following two forms:
firstly, the tower section 4 to be bridged is pressed by the hydraulic cylinder 610 to realize the position fixation of the tower section 4 to be bridged.
Secondly, the fixture block is provided with a clamping space, and the space is matched with the tower section 4 to be bridged, so that the fixture block has the functions of compressing and limiting.
Further, for the form of moving the tower section 4 to be bridged, the following arrangement is performed on the transfer slide 62;
first, the transfer chute 62 is a chute, which is provided on the platform and extends toward the downstream tower limb 2, so that the tower segment 4 to be bridged slides in the chute for transfer.
Secondly, the transfer slide way is a slide rail, a connecting piece used for being detachably connected with the tower section 4 to be bridged is arranged on the slide rail, and when the transfer slide way is used, the tower section 4 to be bridged is connected by the connecting piece, so that the tower section 4 to be bridged can move along the slide rail; the connecting piece and the sliding rail can be in sliding connection or rolling connection.
Further, the tower section 4 to be bridged has a certain weight, which is convenient for the tower section 4 to be bridged to move, and a horizontal pushing member 63 is arranged on the platform part and used for enabling the tower section 4 to be bridged to move along the length of the transfer slideway 62.
The application also provides a construction method of the upper bridge tower of the cable-stayed bridge, which comprises the following steps:
providing a construction device for the upper bridge tower of the cable-stayed bridge, and installing the construction device on one side of the erected downstream tower limb 2;
placing a truss seat 3 at the bottom of the erected downstream tower limb 2, and fixing a tower section 4 to be erected on a platform part of the truss seat 3 through a translation assembly 6;
jacking the truss seat 3 by using the driving device 5 to enable the tower section 4 to be bridged to reach a designated position; the designated position is at an elevation position parallel to the top of the downstream limb 2;
arranging a transfer device on the top of the downstream tower limb 2, and then translating the tower section 4 to be bridged onto the transfer device by using a translation assembly 6, wherein the transfer device is a track; and (3) moving the tower section 4 to be bridged to a position where the tower section 4 can be installed after reaching the track, then lifting the tower section 4 to be bridged for a certain distance by using hoisting equipment or lifting equipment, then removing the transfer device to enable the tower section 4 to be bridged to reach the installation position, and then welding.
The application has the following effects:
(1) the truss seat 3 is adopted to place the tower section 4 to be bridged, and the driving device 5 is arranged below the truss seat, so that the tower section 4 to be bridged stably moves along the track 1 without shaking; and the inclined part 30 is attached to the downstream tower limb 2, and according to the structural arrangement, according to stress analysis, part of the gravity of the truss seat 3 and the tower section 4 to be bridged acts on the downstream tower limb 2, so that the truss seat 3 is more stably arranged on the downstream tower limb and moves along the track 1, the bearing capacity of the driving device is reduced, the load of the driving device is reduced, and the jacking is convenient.
(2) The truss seat 3 is used as a platform for integral jacking, a complex die carrier does not need to be built, the cost is relatively low, and the integral construction device has a simpler structure; constructors can walk on the device, and construction is facilitated.
(3) The base block 60, the telescopic limiting piece 61 and the transfer slide way 62 in the translation assembly 6 are matched for use, so that the tower section 4 to be bridged is stably limited on the truss seat 3 in the jacking process, the swinging cannot occur, and the safety is high.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a cable-stay bridge upper portion pylon construction equipment which characterized in that, it includes:
a rail (1) for being arranged on one side of the erected downstream limb (2) and extending in the length direction of the downstream limb (2);
the truss seat (3) is arranged on the track (1) in a sliding mode, and the top of the truss seat forms a platform part for placing a tower section (4) to be bridged; the side, connected with the track (1), of the truss seat (3) is an inclined part (30), and the inclined part (30) is used for being attached to a downstream tower limb (2);
-drive means (5) for moving the truss mount (3) in the direction of extension of the rail (1).
2. The construction device of an upper pylon of a cable-stayed bridge according to claim 1, wherein:
the driving device (5) is used for being installed at the top of the downstream tower limb (2) and connected with the truss seat (3) through a steel rope, and the driving device (5) winds the steel rope to lift the truss seat (3); or the like, or, alternatively,
the driving device (5) is installed on the track (1), is positioned below the truss seat (3) and is used for jacking the truss seat (3); the drive device (5) comprises:
-a truss mount locking assembly (51) mounted on the ramp (30) and lockable on the track (1);
a driving assembly (52) which is positioned below the truss mount locking assembly (51) and is arranged along the length direction of the track (1); the top of the driving assembly (52) is connected with the truss seat (3), and the bottom can be locked on the track (1); when the driving assembly (52) jacks the truss seat (3) to a stroke, the truss seat locking assembly (51) is locked on the track (1), the bottom of the driving assembly (52) is unlocked with the track (1), and the driving assembly moves upwards until the stroke is reset and is locked with the track (1) again.
3. The cable-stayed bridge upper pylon construction apparatus according to claim 2, wherein the truss mount locking assembly (51) comprises:
at least one first plug-in member (510) which is mounted on the inclined portion (30) and whose plug-in end is retractable;
the track (1) is provided with a locking hole (10) along the length direction, and when the plugging end of the first plugging piece (510) sequentially penetrates through the inclined part (30) and the locking hole (10), the position of the truss seat (3) is locked.
4. The cable-stayed bridge upper pylon construction apparatus according to claim 3, wherein the driving assembly (52) comprises:
a movable seat (520);
a second plug member (521) mounted on the movable base (520) and having a plug end that is retractable; the second plug-pull piece (521) connects the moving seat (520) to the track (1);
a jack (522) having a bottom connected to the moving base (520) and a top connected to the truss base (3); when the plugging end of the second plugging piece (521) penetrates through the movable seat (520) and the locking hole (10), the position of the movable seat (520) is locked.
5. The construction device of an upper pylon of a cable-stayed bridge according to claim 1, wherein:
and the platform part is provided with a translation assembly (6) for translating the tower section (4) to be bridged.
6. The cable-stayed bridge upper pylon construction apparatus according to claim 5, wherein the translation assembly (6) comprises:
a transfer slide (62) disposed on the platform portion for moving the pylon segment (4) to be erected along its length;
a plurality of base blocks (60) which are divided into two rows and symmetrically distributed on two sides of the transfer slide way (62) by taking the central axis of the transfer slide way (62) in the length direction as a symmetry axis;
and the telescopic limiting piece (61) is arranged on the base blocks (60) and is used for pressing or loosening the tower segment (4) to be erected between the two rows of the base blocks (60).
7. The construction device of an upper pylon of a cable-stayed bridge according to claim 6, wherein the telescopic stopper (61) comprises:
a hydraulic cylinder (610) mounted on the base block (60);
and the limiting block (611) is arranged at the output end of the hydraulic cylinder (610), and the limiting block (611) is a pressing block or a clamping block with a clamping space.
8. The construction apparatus of an upper pylon of a cable-stayed bridge according to claim 6, wherein:
the transfer slide way (62) is a slide groove; and/or the presence of a gas in the gas,
the transfer slide way (62) is a slide rail, and a connecting piece used for detachably connecting with the bridge tower section to be erected (4) is arranged on the slide rail.
9. The construction apparatus of an upper pylon of a cable-stayed bridge according to claim 6, wherein:
the translation assembly (6) further comprises a horizontal pushing member (63) arranged on the platform part, and the horizontal pushing member (63) is used for enabling the bridge tower segment (4) to be erected to move along the length direction of the transfer slide way (62).
10. A construction method for an upper bridge tower of a cable-stayed bridge is characterized by comprising the following steps:
providing the construction device of the upper bridge tower of the cable-stayed bridge according to the claim 1 and installing the construction device on one side of the erected downstream tower limb (2);
placing the truss seat (3) at the bottom of the erected downstream tower limb (2), and fixing the bridge tower segment (4) to be erected on a platform part of the truss seat (3);
jacking the truss seat (3) by using a driving device (5) to enable the bridge tower section (4) to be erected to reach a specified position;
and arranging a transfer device at the top of the downstream tower limb (2), moving the tower section (4) to be bridged to the top mounting position of the downstream tower limb (2), and welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110758387.7A CN113445426B (en) | 2021-07-05 | 2021-07-05 | A cable-stayed bridge upper tower construction device and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110758387.7A CN113445426B (en) | 2021-07-05 | 2021-07-05 | A cable-stayed bridge upper tower construction device and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113445426A true CN113445426A (en) | 2021-09-28 |
| CN113445426B CN113445426B (en) | 2024-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202110758387.7A Active CN113445426B (en) | 2021-07-05 | 2021-07-05 | A cable-stayed bridge upper tower construction device and construction method |
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| CN115125836A (en) * | 2022-07-25 | 2022-09-30 | 中铁大桥局集团有限公司 | Cross-brace system of diamond-shaped space four-limb tower and construction method thereof |
| CN115418962A (en) * | 2022-09-26 | 2022-12-02 | 中建八局发展建设有限公司 | Cable-stay bridge steel-concrete combination section installation positioning system |
| CN115478485A (en) * | 2022-10-17 | 2022-12-16 | 中建八局发展建设有限公司 | Transversely-spliced installation device and method for main tower steel sections of cable-stayed bridge |
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Cited By (4)
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| CN115125836A (en) * | 2022-07-25 | 2022-09-30 | 中铁大桥局集团有限公司 | Cross-brace system of diamond-shaped space four-limb tower and construction method thereof |
| CN115418962A (en) * | 2022-09-26 | 2022-12-02 | 中建八局发展建设有限公司 | Cable-stay bridge steel-concrete combination section installation positioning system |
| CN115478485A (en) * | 2022-10-17 | 2022-12-16 | 中建八局发展建设有限公司 | Transversely-spliced installation device and method for main tower steel sections of cable-stayed bridge |
| CN115478485B (en) * | 2022-10-17 | 2024-07-23 | 中建八局发展建设有限公司 | Transverse splicing installation device and method for main tower steel segments of cable-stayed bridge |
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| CN113445426B (en) | 2024-12-10 |
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