CN219839949U - Lower beam bracket of ultra-high bridge cable tower - Google Patents

Abstract

The utility model provides a lower beam bracket of an extra-high bridge cable tower, which relates to the technical field of bridge construction, is arranged on the inner sides of two limbs of the cable tower, and is provided with a bearing platform, and comprises: the first bearing struts are connected with the bearing platform through the embedded assemblies; the second bearing struts are arranged on two sides of the first bearing struts and are connected with the pier wall of the cable tower through corbels; the connecting component is connected with the pier wall of the cable tower, connected with the first bearing support column and the second bearing support column and used for fixing the horizontal positions of the first bearing support column and the second bearing support column; the utility model is suitable for supporting the casting die carrier of the lower beam of the ultra-high bridge cable tower, and can improve the loading capacity of the bracket through the first bearing support and the first bearing support, thereby improving the construction quality of the lower beam of the ultra-high bridge cable tower.

Description

Lower beam bracket of ultra-high bridge cable tower

Technical Field

The utility model relates to the technical field of bridge construction, in particular to a lower beam bracket of an extra-high bridge cable tower.

Background

The extra-high cable-stayed bridge is limited by construction environment, for example, is influenced by subsequent water storage in a water reservoir area, and has high requirements on the clearance size of the bridge, so that the height of the lower beam of the main tower from the bearing platform is large, and further, great difficulty is brought to the construction of the lower beam bracket. The high-suspension bracket mainly comprises a truss supporting system, a distribution beam, a spandrel girder and the like, wherein the truss supporting system is formed by embedding supporting pieces and steel pipes in a tower column, and the bracket load mainly considers the dead weight of reinforced concrete poured for the first time and the additional force poured for the second time from the analysis of a stressed structural form and a transmission load path, for example, the maximum stressed load of the bracket is about 2000 tons. In order to avoid high construction cost caused by using a floor type bracket in the prior art, a floor type bracket is generally adopted, for example, chinese patent with publication number of CN106638314A discloses a cable tower beam floor type bracket and a cable tower beam construction method, wherein the cable tower beam floor type bracket comprises a main beam, a connecting beam and an inclined strut.

The floor-free support can realize the support of the die carrier to a certain extent, but the compression strength of the diagonal bracing is limited, and the lower cross beam support of the ultra-high bridge cable tower needs to bear higher load, so that the load bearing capacity of the floor-free support is required to be further improved.

Disclosure of Invention

The utility model aims to provide a lower beam bracket of an extra-high bridge cable tower, which solves the problem that the bearing capacity of the bracket needs to be improved when a non-floor type bracket is adopted for the construction of the lower beam of the extra-high bridge cable tower.

The embodiment of the utility model is realized by the following technical scheme: an extra-high bridge cable tower lower beam support sets up in the both limbs inboard of cable tower, and the cable tower is equipped with the cushion cap, includes: the first bearing struts are connected with the bearing platform through the embedded assemblies; the second bearing struts are arranged on two sides of the first bearing struts and are connected with the pier wall of the cable tower through corbels; the connecting component is connected with the pier wall of the cable tower, connected with the first bearing support column and the second bearing support column and used for fixing the horizontal positions of the first bearing support column and the second bearing support column;

further, the embedded assembly comprises a pouring part, embedded bolts and connecting steel pipes, and the flange plates are welded on the connecting steel pipes corresponding to the first bearing struts;

further, the pouring components comprise a first pouring component and a second pouring component, and embedded bolts are embedded in the second pouring component;

further, the connecting component comprises a flat supporting component and an inclined supporting component, and the flat supporting component and the inclined supporting component are connected with the pier wall;

further, the second bearing support column is connected with the pier wall of the cable tower through a K-shaped triangular truss bracket; further, the connecting part is arranged as a double layer;

further, the first bearing support column is formed by connecting a plurality of sections of steel pipes in a bolt connection mode.

The technical scheme of the utility model has at least the following advantages and beneficial effects: firstly, after a plurality of first bearing struts are arranged and connected with a bearing platform, the middle part of a cable tower lower beam die carrier can be supported; secondly, through setting up a plurality of second bearing support and mound wall and being connected the back, can support to the both sides of cable tower bottom end rail die carrier, finally, through the setting of adapting unit, can fix the horizontal position of first bearing support and second bearing support, promote the stability of support, and then improved the whole ability of bearing the load of no floor-type support.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a lower beam bracket of an extra-high bridge cable tower according to embodiment 1 of the present utility model;

fig. 2 is a schematic structural diagram of an embedded assembly of a lower beam bracket of an extra-high bridge cable tower according to embodiment 1 of the present utility model;

fig. 3 is a schematic structural diagram of an embedded assembly of a lower beam bracket of an extra-high bridge cable tower according to embodiment 1 of the present utility model;

fig. 4 is a schematic structural diagram of a third load-bearing bracket of the lower beam bracket of the extra-high bridge cable tower according to embodiment 2 of the present utility model.

Icon: the cable tower comprises a 1-cable tower body, a 2-first bearing support column, a 3-second bearing support column, a 4-embedded component, a 5-connecting component, a 6-third bearing support column, a 11-pier wall, a 12-bearing platform, a 41-pouring component, a 42-embedded bolt, a 43-connecting steel pipe, a 51-flat supporting component, a 52-diagonal supporting component, a 411-first pouring component and a 412-second pouring component.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

The embodiment provides an extra-high bridge cable tower bottom end rail support, as shown in fig. 1-3, sets up in the both limbs inboard of cable tower 1, and cable tower 1 is equipped with cushion cap 12, includes: the first bearing struts 2 are connected with the bearing platform 12 through the embedded assemblies 4; the second bearing struts 3 are arranged on two sides of the first bearing strut 2, and are connected with the pier wall 11 of the cable tower 1 through corbels; and the connecting part 5 is connected with the pier wall 11 of the cable tower 1, and is connected with the first bearing support column 2 and the second bearing support column 3, so that the horizontal positions of the first bearing support column 2 and the second bearing support column 3 are fixed.

It should be noted that, firstly, after a plurality of first bearing struts 2 are arranged to be connected with a bearing platform 12, the middle part of a lower beam die carrier of the cable tower 1 can be supported; secondly, through setting up a plurality of second bearing support posts 3 and mound wall 11 and being connected the back, can support to the both sides of cable tower 1 bottom end rail die carrier, finally, through the setting of adapting unit 5, can fix the horizontal position of first bearing support post 2 and second bearing support post 3, promote the stability of support, and then improved the whole ability of bearing load of no floor-type support.

The cable tower 1 is provided with a double-limb structure, as shown in fig. 1, and the bottom of the inner side of the double-limb structure is provided with a bearing platform 12; the first bearing support column 2 is formed by connecting a plurality of sections of steel pipes through bolts, for example, flanges are welded at two ends of the steel pipes, the plurality of sections of steel pipes are connected through flange bolts, so that the stability of steel pipe connection is improved, meanwhile, the support column with a specific length can be temporarily assembled according to actual needs, and the universality of the first bearing support column 2 is improved; the first bearing struts 2 are connected with the bearing platform 12 through pre-buried assemblies 4, and as shown in fig. 2, the pre-buried assemblies 4 comprise pouring components 41, pre-buried bolts 42 and connecting steel pipes 43; the pouring component 41 comprises a first pouring component 411 and a second pouring component 412, wherein the second pouring component 412 is arranged at the top of the first pouring component 411, and embedded bolts 42 are embedded in the second pouring component; the connecting steel pipe 43 is welded with a flange plate, the connecting steel pipe 43 is welded with a flange plate through the flange plate and connected with the embedded bolts 42, the first bearing support column 2 is connected with the connecting steel pipe 43 through the flange plate and connected with the bearing platform 12 through the bolt, and therefore the loading capacity of the first bearing support column 2 is improved.

The second bearing support 3, as shown in fig. 1, is arranged on two sides of the first bearing support 2, is connected with the pier wall 11 of the cable tower 1 through the K-shaped triangular truss bracket, and is of a finished steel structure, so that the product quality is effectively ensured, meanwhile, the field welding operation is reduced, the construction difficulty is reduced, and meanwhile, the universality of the support is improved.

The connecting part 5, as shown in fig. 3, comprises a flat supporting part 51 and an inclined supporting part 52, wherein the flat supporting part 51 is connected with the pier wall 11 through a bracket, and the inclined supporting part 52 is connected with the pier wall 11 through an ear plate; the connecting part 5 is arranged as a double layer, and can fix the horizontal positions of the first bearing support column 2 and the second bearing support column 3, thereby improving the loading capacity of the bracket.

The upper part of the bracket adopts the existing structural parts, for example, a flat joint is arranged on the first bearing support column 2 and the second bearing support column 3, a drop block is arranged on the flat joint, a column top main longitudinal beam and a longitudinal bridge secondary distribution beam are arranged on the drop block, a bailey frame is arranged at the top of the distribution beam, longitudinal bridge square timber and a panel are arranged on the bailey frame, and a chamfer leveling block, a bottom die back edge at a chamfer position and a steel die are arranged on the bailey frame.

Example 2

The embodiment provides an extra-high bridge cable tower bottom end rail support, as shown in fig. 4, its main structure is identical with that in embodiment 1, and the difference lies in, still includes third bearing pillar 6, and a plurality of third bearing pillars 6 are connected with mound wall 11 through "K" type triangular truss bracket, can support the both ends of upper portion die carrier, have promoted the stability of bottom end rail support, have improved the load-carrying capacity of bottom end rail support simultaneously.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. The utility model provides an extra-high bridge cable tower bottom end rail support, sets up in the both limbs inboard of cable tower (1), cable tower (1) are equipped with cushion cap (12), its characterized in that includes:

the first bearing struts (2), a plurality of the first bearing struts (2) are connected with the bearing platform (12) through the embedded assembly (4);

the second bearing struts (3) are arranged on two sides of the first bearing struts (2) and are connected with pier walls (11) of the cable towers (1) through corbels;

the connecting component (5), connecting component (5) with mound wall (11) of cable tower (1) are connected, and with first bearing pillar (2) with second bearing pillar (3) are connected, are used for first bearing pillar (2) with the horizontal position of second bearing pillar (3) is fixed.

2. The extra-high bridge cable tower lower beam bracket according to claim 1, wherein the embedded assembly (4) comprises a pouring component (41), embedded bolts (42) and a connecting steel pipe (43), and the first bearing support column (2) is welded with a flange plate corresponding to the connecting steel pipe (43).

3. The extra-high bridge cable tower lower beam bracket according to claim 2, wherein the pouring member (41) comprises a first pouring member (411) and a second pouring member (412), and the second pouring member (412) is pre-embedded with the pre-embedded bolt (42).

4. A lower beam bracket for a cable tower according to claim 3, wherein the connecting member (5) comprises a flat supporting member (51) and a diagonal supporting member (52), and the flat supporting member (51) and the diagonal supporting member (52) are connected to the pier wall (11).

5. The extra-high bridge pylon lower beam bracket of claim 4 wherein the second load bearing post (3) is connected to the pier wall (11) of the pylon (1) by a "K" type delta truss bracket.

6. The extra-high bridge pylon lower beam bracket of claim 5 wherein the connecting means (5) is double layered.

7. The extra-high bridge cable tower lower beam support according to any one of claims 1-6, wherein the first load-bearing support (2) is provided with a plurality of sections of steel pipes in a bolt connection manner.