CN216551574U - Cable-stayed buckling system high-cable tower bottom structure - Google Patents
Cable-stayed buckling system high-cable tower bottom structure Download PDFInfo
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- CN216551574U CN216551574U CN202123285564.9U CN202123285564U CN216551574U CN 216551574 U CN216551574 U CN 216551574U CN 202123285564 U CN202123285564 U CN 202123285564U CN 216551574 U CN216551574 U CN 216551574U
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Abstract
The application relates to a draw to one side and detain string system high cable tower bottom structure, it includes: the first connecting seat is used for being arranged on the upper chord of the steel truss arch bridge; the rigid supporting pieces are arranged on the upper chord of the steel truss arch bridge, are positioned on two sides of the first connecting seat and are distributed along the transverse bridge direction; the second connecting seat is arranged on the rigid supporting piece; and the connecting shaft penetrates through the first connecting seat and the second connecting seat to be hinged with the first connecting seat and the second connecting seat. When the high-cable tower is required to be installed on the steel truss arch bridge upper chord, the second connecting seat is hung on the rigid support piece, the second connecting seat and the first connecting seat are hinged through the connecting shaft, the high-cable tower is convenient to install in a hinged mode, the rigid support piece not only serves as a support in the installation process, the second connecting seat is convenient to place, the support is also played after the connection, the structural strength is strengthened, and the adverse effect of the high-cable tower on the bottom structure of the cable tower caused by the gradual increase of stress is avoided.
Description
Technical Field
The application relates to the technical field of bridge construction, in particular to a tower bottom structure of a cable-stayed buckling and hanging system.
Background
The existing construction technology of the cable-stayed buckling and hanging system and the side-span construction technology becomes a bridge construction technology which is widely used due to the characteristics of wide applicability, easy construction operation and the like; the construction of a cable tower, which is an important ring in the construction of a cable-stayed buckling system, has extremely high requirements; the height of the cable tower in the construction of the conventional cable-stayed buckling system is defined to be 0.3-0.4 times of the ratio of the main span to the half span. In some bridge designs, the height of the sling tower is close to 90 meters, the main span of the bridge is 215 meters, and the high span ratio is close to 0.42, which is very challenging for bridge construction, and the stability of the bridge in the construction process must be ensured.
In the related art, the whole sling tower frame is complex in structure and comprises a base, a cable tower, a temporary wind cable, a sling and the like; different parts are assembled and installed by corresponding rod pieces and parts, so that the structural rod pieces are various and the installation is complex; in addition, the combined arch rib truss rod is heavy, the designed installation weight reaches 100t, and the tower hinge shaft reaction force can reach 4491 t. To the member structure complicacy, the heavier steel truss of member structure encircles the system, and obvious conventional height can't satisfy its construction requirement, and this just requires to set up the high cable tower, and the high cable tower can produce bigger vertical load to cable tower bottom, and the design of cable tower bottom structure has had new difficult point from this:
the high cable tower corresponding to the half span of the arch bridge brings about the adverse effect of the gradual increase of stress on the bottom structure of the cable tower, and meanwhile, the large stress caused by the larger high span ratio also brings about the difficulty of the connection of the cable tower and the arch bridge.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a system high cable tower bottom structure is buckled to drawing to one side to solve the adverse effect that stress gradually increased brought the cable tower bottom structure in the prior art, and cable tower bottom structure and arch bridge are connected the difficult problem.
First aspect provides a system high cable tower bottom structure is buckled to one side to draw to one side, and it includes:
the first connecting seat is used for being arranged on the upper chord of the steel truss arch bridge;
the rigid supporting pieces are arranged on the upper chord of the steel truss arch bridge, are positioned on two sides of the first connecting seat and are distributed along the transverse bridge direction;
the second connecting seat is arranged on the rigid supporting piece;
and the connecting shaft penetrates through the first connecting seat and the second connecting seat to be hinged with the first connecting seat and the second connecting seat.
In some embodiments, the top of the rigid support member on both sides of the first connecting seat has the same horizontal height.
In some embodiments, the rigid support comprises:
the cushion columns are used for being connected with the upper chord of the steel truss arch bridge;
a bolster disposed on the bolster;
and the copying pad is arranged on the pad beam and is connected with the second connecting seat.
In some embodiments, the second connection holder comprises:
a substrate;
and the sling tower hinged support is connected to the bottom of the base plate through a connecting rod, and is also provided with a first through hole for the connecting shaft to pass through.
In some embodiments, the first connecting seat is provided with an accommodating space for accommodating a part of a sling tower hinge seat, and a second through hole coaxial with the first through hole, and the second through hole is communicated with the accommodating space.
In some embodiments, the first connecting seat is further provided with a mounting component for mounting the connecting shaft.
In some embodiments, the mounting assembly comprises:
the guide bracket is provided with a rolling shaft which is in sliding contact with the connecting shaft;
the counterforce support and the guide support are respectively positioned on two sides of the first connecting seat in the transverse bridge direction;
and the center-penetrating jack is arranged on the counter-force support and is connected with the connecting shaft through a stay cable.
In some embodiments, the second connecting seat is provided with a plurality of distribution beams distributed along the longitudinal bridge direction, and the length direction of the distribution beams extends along the transverse bridge direction; and the distribution beam is connected with a plurality of bottom steel pipe columns through column feet.
In some embodiments, a plurality of bottom-section steel pipe columns comprise connected transverse supporting rods and diagonal supporting rods.
In some embodiments, a limiting plate is fixedly arranged at one end of the connecting shaft, and a limiting member is detachably connected to the other end of the connecting shaft.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a system high cable tower bottom structure is buckled to cable-stay, because first connecting seat sets up on steel purlin arch bridge upper chord, rigidity support piece sets up on steel purlin arch bridge upper chord, the second connecting seat sets up the bottom at the high cable tower, when needs install the high cable tower on steel purlin arch bridge upper chord, hang the second connecting seat to rigidity support piece on, reuse the connecting axle with second connecting seat and first connecting seat articulated can, be convenient for the installation of high cable tower through articulated mode, and rigidity support piece not only is as supporting in the installation, be convenient for place of second connecting seat, also play the support after connecting, the effect of strengthening structure intensity, thereby avoid the high cable tower to bring the adverse effect that stress increases gradually and bring to cable tower bottom structure.
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 longitudinal bridge view of a tower bottom structure of a cable-stayed buckling system provided in an embodiment of the present application;
fig. 2 is a schematic cross-bridge view of a tower bottom structure of a cable-stayed buckling system according to an embodiment of the present application;
fig. 3 is a schematic view of a tower bottom structure of a cable-stayed buckling system provided by an embodiment of the application and provided with a mounting assembly;
fig. 4 is a schematic view illustrating a bottom structure of a high cable tower of a cable-stayed buckling system according to an embodiment of the present application being connected to an upper chord of a steel truss arch bridge;
fig. 5 is a schematic upper structure view of a second connecting seat according to an embodiment of the present disclosure;
fig. 6 is a schematic view of a connection shaft provided in an embodiment of the present application.
In the figure: 1. a first connecting seat; 2. a second connecting seat; 200. a substrate; 201. a sling tower hinged support; 202. a connecting rod; 3. a rigid support; 300. a cushion column; 301. a bolster; 302. copying and cushioning; 4. a connecting shaft; 5. a distribution beam; 6. a column shoe; 7. bottom section steel pipe columns; 8. mounting the component; 800. a guide bracket; 801. a counter-force bracket; 802. a center-penetrating jack; 803. a roller; 9. and (4) winding the steel truss arch bridge.
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.
The embodiment of the application provides a system high cable tower bottom structure is buckled to drawing to one side to solve the adverse effect that stress gradually increased brought the cable tower bottom structure in the prior art, and cable tower bottom structure and arch bridge are connected the problem of difficulty.
Referring to fig. 1, 2 and 4, a tower bottom structure of a cable-stayed buckling system is provided, which includes a first connecting seat 1, a rigid supporting member 3, a second connecting seat 2 and a connecting shaft 4.
Wherein first connecting seat 1 sets up on steel purlin arch bridge upper chord 9, and first connecting seat 1 forms overall structure with the upper chord of steel purlin arch bridge node promptly for satisfy the downward transmission of vertical load, and is same, and overall design is also made to first connecting seat 1 structure.
The rigid supporting members 3 are also arranged on the upper chord 9 of the steel truss arch bridge, the number of the rigid supporting members 3 is multiple, the rigid supporting members are divided into two parts, the two parts are respectively positioned on the two sides of the first connecting seat 1 in the longitudinal bridge direction, and the rigid supporting members 3 in each part are distributed along the transverse bridge direction. The second connecting seat 2 is arranged on the rigid support 3.
The connecting shaft 4 penetrates through the first connecting seat 1 and the second connecting seat 2 to hinge the first connecting seat 1 and the second connecting seat 2.
Through the structure arrangement, when the high-cable tower is required to be installed on the steel truss arch bridge upper chord 9, the first connecting seat 1 and the rigid supporting piece 3 are installed firstly, then the second connecting seat 2 is hung on the rigid supporting piece 3, after the high-cable tower is placed stably, the second connecting seat 2 and the first connecting seat 1 are hinged through the connecting shaft 4, the high-cable tower can be installed quickly through a hinging mode, the rigid supporting piece 3 is used as a support in the installation process, the second connecting seat 2 is placed stably, and the high-cable tower cannot shake, so that the connecting shaft 4 can be connected and penetrated conveniently; and rigid support piece 3 also plays the effect of supporting the high cable tower after connecting, reinforcing structural strength to avoid the high cable tower to bring the adverse effect that the stress increases gradually and bring to cable tower bottom structure, and the influence of being not convenient for install.
In some preferred embodiments, the steel truss arch bridge has a curvature that is changed to ensure that the second connecting seat 2 is horizontal when placed on the rigid support member 3, and therefore the following arrangement is provided:
the horizontal height of the tops of all the rigid supports 3 is equal, and the rigid supports 3 comprise:
the cushion column 300 is used for being connected with the upper chord 9 of the steel truss arch bridge; a pad beam 301 provided on the pad post 300; the copying pad 302 is arranged on the pad beam 301 and connected with the second connecting seat 2, the copying pad 302 is made of a steel plate, and the pad beam 301 is further provided with a limiting steel plate for limiting the copying pad 302 to shake.
During installation, firstly welding the pad columns 300 and the pad beams 301 on the upper chord 9 of the steel truss arch bridge and on two sides of the first connecting seat 1, and finally adjusting the horizontal height by using the lifting pads 302 so as to meet the installation stability of the second connecting seat 2.
In some preferred embodiments, for the purpose of facilitating the connection, the second connecting socket 2 comprises a base plate 200, a sling tower anchor 201 and a connecting rod 202. The sling tower anchor 201 is connected to the bottom of the base plate 200 by a connecting rod 202, and has a first through hole for the connecting shaft 4 to pass through. The connecting rod 202 may be a steel pipe of phi 603mm
The first connecting seat 1 is provided with an accommodating space for accommodating a part of the sling tower hinging seat 201, and a second through hole coaxial with the first through hole, and the second through hole is communicated with the accommodating space.
When connecting, the base plate 200 level of second connecting seat 2 sets up at the 3 tops of rigid support, and hoist cable tower free bearing 201 stretches into the accommodation space of first connecting seat 1 simultaneously, and second through-hole and first through-hole are worn to establish by last connecting axle 4 to be connected second connecting seat 2 and first connecting seat 1.
In some preferred embodiments, as shown in fig. 3, since the connecting shaft 4 has a large size and weight, and a certain installation device needs to be provided, a mounting assembly 8 for installing the connecting shaft 4 is provided on the first connecting seat 1, so as to facilitate the quick and stable connection of the connecting shaft 4.
The mounting assembly 8 comprises a guide bracket 800, a counter force bracket 801, a piercing jack 802 and a roller 803;
the guide bracket 800 is provided with a roller 803 in sliding contact with the connecting shaft 4; the reaction bracket 801 and the guide bracket 800 are respectively positioned at two sides of the first connecting seat 1 in the transverse bridge direction; the center-penetrating jack 802 is provided on the reaction force bracket 801 and is connected to the connecting shaft 4 by a cable.
When the connecting device is used, the penetrating jack 802 is connected with the connecting shaft 4 through a stay cable, and then the penetrating jack 802 drives the connecting shaft 4 to move along the guide bracket 800, so that the connecting shaft 4 penetrates through the second through hole and the first through hole.
Further, for the stability and the firm degree of connecting after strengthening connecting axle 4 and wearing to establish second through-hole and first through-hole, the fixed limiting plate that is equipped with of one end of connecting axle 4, other end releasable connection has a locating part, and the locating part can be spacing bolt, and the bolt carries out circumference with the axle center of connecting axle 4 and distributes.
In some preferred embodiments, as shown in fig. 5, in order to enhance the stability of the bottom structure of the tower to accommodate the larger stress, the second connecting seat 2 is provided with a plurality of distribution beams 5 distributed along the longitudinal bridge direction, and the length direction of the distribution beams 5 extends along the transverse bridge direction; the distribution beam 5 is connected with a plurality of bottom steel pipe columns 7 through column feet 6.
Furthermore, a plurality of bottom steel pipe columns 7 comprise transverse supporting rods and inclined supporting rods which are connected with each other, so that the bottom structure of the high-cable tower is further enhanced.
In some preferred implementations, reference values are given for the dimensions of the above structures, in particular as follows:
the first connecting seat 1 is of an integral structure, the total height is about 3.8m, the longitudinal bridge length is 8.5m, the transverse bridge width is about 1.9m, and the single weight is about 35 t; the diameter of the first through hole and the second through hole is
The height of each single distribution beam 5 is 1.53M, the width is 1.3M, the weight is 10t, and the single distribution beam and the bottom section steel pipe column are connected through M27 bolts. The connecting shaft 4 is a hinge shaft with a diameter of 600mm and is shaped as shown in figure 6.
In order to ensure the quality of the tower bottom structure of the cable-stayed buckling and hanging system, raw materials for manufacturing the structure and finished products for processing are subjected to flaw detection and acceptance, the connecting shaft 4 is subjected to tempering according to the requirements of a design drawing, and the precision of holes and the roughness of the surface of hole walls also meet the requirements of the drawing and relevant specifications.
The principle of the application is as follows:
when the high-cable tower is required to be installed on the steel truss arch bridge upper chord 9, the first connecting seat 1 and the rigid supporting piece 3 are installed firstly, then the second connecting seat 2 is hung on the rigid supporting piece 3, after the high-cable tower is placed stably, the second connecting seat 2 and the first connecting seat 1 are hinged through the connecting shaft 4, the high-cable tower can be installed quickly through the hinging mode, the rigid supporting piece 3 serves as a support in the installation process, the second connecting seat 2 is placed stably, the high-cable tower cannot shake, and the connecting shaft 4 can be connected and penetrated conveniently; and rigid support piece 3 also plays the effect of supporting the high cable tower after connecting, reinforcing structural strength to avoid the high cable tower to bring the adverse effect that the stress increases gradually and bring to cable tower bottom structure, and the influence of being not convenient for install.
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 system high cable tower bottom structure is buckled to one side draws, its characterized in that, it includes:
the first connecting seat (1) is used for being arranged on an upper chord (9) of the steel truss arch bridge;
the rigid supporting pieces (3) are arranged on the upper chord (9) of the steel truss arch bridge, and the rigid supporting pieces (3) are positioned on two sides of the first connecting seat (1) and distributed along the transverse bridge direction;
a second connecting seat (2) arranged on the rigid support (3);
the connecting shaft (4) penetrates through the first connecting seat (1) and the second connecting seat (2) to be hinged with the first connecting seat (1) and the second connecting seat (2).
2. The cable-stayed buckling system high-tower bottom structure of claim 1, wherein:
the horizontal heights of the tops of the rigid supporting pieces (3) on the two sides of the first connecting seat (1) are equal.
3. The tower bottom structure of a cable-stayed buckle system as claimed in claim 1 or 2, wherein the rigid support member (3) comprises:
the cushion column (300) is used for being connected with an upper chord (9) of the steel truss arch bridge;
a pad beam (301) provided on the pad post (300);
and the shoveling pad (302) is arranged on the pad beam (301) and is connected with the second connecting seat (2).
4. The tower bottom structure of a cable-stayed buckle system as set forth in claim 1, wherein the second connection seat (2) comprises:
a substrate (200);
and the sling tower hinged support (201) is connected to the bottom of the base plate (200) through a connecting rod (202), and is also provided with a first through hole for the connecting shaft (4) to pass through.
5. The tower bottom structure of a stayed-cable buckling system high cable tower as claimed in claim 4, wherein:
the first connecting seat (1) is provided with an accommodating space for accommodating a part of sling tower hinged support (201), and a second through hole coaxial with the first through hole, and the second through hole is communicated with the accommodating space.
6. The tower bottom structure of a stayed-cable buckling system high cable tower as claimed in claim 1, wherein:
and the first connecting seat (1) is also provided with a mounting assembly (8) for mounting the connecting shaft (4).
7. The cable-stayed hitching system pylon base structure according to claim 6, wherein the mounting assembly (8) comprises:
a guide bracket (800) on which a roller (803) in sliding contact with the connecting shaft (4) is provided;
reaction force brackets (801) and the guide brackets (800) are respectively positioned on two sides of the first connecting seat (1) in the transverse bridge direction;
and a center-penetrating jack (802) which is arranged on the reaction force bracket (801) and is connected with the connecting shaft (4) through a guy cable.
8. The cable-stayed buckling system high-tower bottom structure of claim 1, wherein:
the second connecting seat (2) is provided with a plurality of distribution beams (5) distributed along the longitudinal bridge direction, and the length direction of the distribution beams (5) extends along the transverse bridge direction; the distribution beam (5) is connected with a plurality of bottom steel pipe columns (7) through column feet (6).
9. The cable-stayed buckling system high-tower bottom structure as claimed in claim 8, wherein:
and the bottom section steel pipe columns (7) comprise transverse supporting rods and inclined supporting rods which are connected.
10. The cable-stayed buckling system high-tower bottom structure of claim 1, wherein:
one end of the connecting shaft (4) is fixedly provided with a limiting plate, and the other end of the connecting shaft is detachably connected with a limiting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123285564.9U CN216551574U (en) | 2021-12-24 | 2021-12-24 | Cable-stayed buckling system high-cable tower bottom structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123285564.9U CN216551574U (en) | 2021-12-24 | 2021-12-24 | Cable-stayed buckling system high-cable tower bottom structure |
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| Publication Number | Publication Date |
|---|---|
| CN216551574U true CN216551574U (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123285564.9U Active CN216551574U (en) | 2021-12-24 | 2021-12-24 | Cable-stayed buckling system high-cable tower bottom structure |
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| CN (1) | CN216551574U (en) |
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- 2021-12-24 CN CN202123285564.9U patent/CN216551574U/en active Active
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