CN223837946U - A load transfer device for a bridge system - Google Patents
A load transfer device for a bridge systemInfo
- Publication number
- CN223837946U CN223837946U CN202520173898.6U CN202520173898U CN223837946U CN 223837946 U CN223837946 U CN 223837946U CN 202520173898 U CN202520173898 U CN 202520173898U CN 223837946 U CN223837946 U CN 223837946U
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Abstract
The utility model relates to the technical field of T beam reinforcement, and discloses a load transfer device for a bridge system, which comprises: and the transferring mechanism is fixedly arranged below the bridge deck. By adopting the technical scheme of the utility model, the load sharing efficiency of the bridge deck is greatly improved.
Description
Technical Field
The utility model relates to the technical field of T beam reinforcement, in particular to a load transfer device for a bridge system.
Background
At present, with the increase of the service life of a bridge (namely an original beam body, such as a T beam), the bearing capacity of the original beam body is weakened, a new beam body is generally added, and the new beam body can bear a part of bridge deck automobile loads born by the original beam body, so that the bridge deck automobile loads actually born by the original beam body are lightened.
In the prior art, the invention patent 'bridge reinforcing device based on load transfer' with application publication number of CN110983993A discloses a newly-increased beam body and a supporting system arranged below the newly-increased beam body, wherein the newly-increased beam body can bear a part of bridge deck automobile load. The newly-increased beam body sequentially comprises an upper flange plate, a web plate and a lower flange plate from top to bottom, wherein the process of concretely bearing load by the assemblies is that the upper flange plate, the web plate and the lower flange plate are sequentially arranged between the adjacent original beam bodies from top to bottom, and a supporting system is arranged below the newly-increased beam body, so that the bridge deck automobile load actually borne by the original beam body is lightened. The original beam body can be a T-beam, and an I-shaped beam (hereinafter referred to as an I-beam) is formed by an upper flange plate, a web plate and a lower flange plate of the newly added beam body.
However, while a portion of the deck load may be shared by both the original beam body (e.g., a T-beam) and the added beam body (e.g., an i-beam), the deck load may not be shared to a significant extent (i.e., not be effectively shared), reducing the deck load. That is, the efficiency of the newly added beam body to share the bridge deck load is lower.
Therefore, there is a need for a load transfer device for bridge systems that can effectively share deck loads. That is, the bridge deck load sharing efficiency is greatly improved.
Disclosure of utility model
In order to solve the technical problems, the utility model provides a load transfer device for a bridge system, wherein a first transfer assembly of a transfer mechanism can realize primary transfer of bridge deck load. The second transfer component of the transfer mechanism can share the bridge deck load borne by the first transfer component, namely, the second transfer of the bridge deck load is realized. And because the second transfer assembly is arranged on the basis of the first transfer assembly, the bridge deck load is effectively transferred, and the transfer efficiency of the bridge deck load is greatly improved.
The load transfer device for the bridge system is characterized by comprising a transfer mechanism, a supporting mechanism and a supporting mechanism, wherein the transfer mechanism is arranged among a plurality of T beams and used for transferring the load of the bridge deck, the supporting mechanism is fixedly arranged below the transfer mechanism and used for supporting the transfer mechanism, the supporting mechanism is fixedly arranged above the filler stone, and the transfer mechanism is fixedly arranged below the bridge deck;
The transfer mechanism comprises a plurality of transfer assemblies, each transfer assembly comprises a first transfer assembly and a pair of second transfer assemblies symmetrically arranged on two sides of the first transfer assembly;
The first transfer assembly comprises an upper chord fixedly arranged below the bridge deck, a lower chord fixedly arranged above the supporting mechanism, and a vertical rod fixedly arranged between the upper chord and the lower chord;
The second transfer assembly comprises an upper gusset plate fixedly arranged on one side of the upper chord member, a lower gusset plate fixedly arranged on one side of the lower chord member, and a web member fixedly arranged between the upper gusset plate and the lower gusset plate;
The vertical rods are fixedly connected with the upper chord member, and the vertical rods are fixedly connected with the lower gusset plate;
The supporting mechanism comprises a self-adjusting slope mechanism arranged below the supporting mechanism, and a jacking mechanism fixedly arranged below the self-adjusting slope mechanism and used for jacking the self-adjusting slope mechanism;
The self-leveling mechanism comprises a leveling steel plate, a support bearing steel plate, a support, a sliding plate and a support sliding groove, wherein the leveling steel plate, the support bearing steel plate, the support, the sliding plate and the support sliding groove are sequentially arranged from top to bottom;
The jacking mechanism comprises jacking steel plates fixedly arranged below the support sliding grooves, leveling bolts penetrating through four corners of the jacking steel plates, limit nuts arranged below the leveling bolts and used for limiting the height of the jacking steel plates, and jacks arranged in cavities between the backing stones and the jacking steel plates and used for jacking the jacking steel plates upwards, wherein the leveling bolts are installed in the backing stones.
The load transfer device for the bridge system is characterized in that the bridge deck plate is fixedly connected with the upper chord member through shear nails, the upper chord member is fixedly connected with the upper node plate through a first connecting component, and the upper node plate is connected with the web member through fixing screws;
The web member is connected with the lower node plate through the fixing screw, and the lower node plate is connected with the lower chord member through the fixing screw.
The load transfer device for the bridge system is characterized in that the included angle range of the center line of the web member and the center line of the lower chord member comprises 20 degrees and 80 degrees, wherein 20 degrees are included angle lower limit values and 80 degrees are included angle upper limit values.
The load transfer device for the bridge system is characterized in that the first connecting assembly comprises an upper cushion steel plate arranged below the upper chord member, a pair of L-shaped steel plates which are vertically and symmetrically arranged on two sides of the upper cushion steel plate and fixedly connected with the upper cushion steel plate through shear nails, the L-shaped steel plates and the upper node plates are fixedly connected through first screws, the upper node plates and the web members are connected through second screws, and the upper node plates and the upper cushion steel plates are fixedly connected through third screws.
The load transfer device for the bridge system is characterized in that the vertical rods are connected with the upper chord through the second screws, and the vertical rods are connected with the lower gusset plates through the second screws.
The load transfer device for the bridge system is characterized in that the first screw comprises a limit screw, the second screw comprises a fixed screw, and the third screw comprises a thrust screw.
The beneficial effect reasoning analysis is as follows:
In the prior art, although part of the bridge deck load can be borne by the original beam body and the newly added beam body together, the bridge deck load can not be shared to a large extent, and the load of the bridge deck is reduced. That is, the efficiency of the newly added beam body to share the bridge deck load is lower.
In the technical scheme provided by the utility model, the first transfer assembly is arranged below the bridge deck, and specifically, the upper chord, the vertical rod and the lower chord can be arranged below the bridge deck in sequence. And a pair of second transfer assemblies are symmetrically arranged on two sides of the first transfer assembly, specifically, an upper node plate can be arranged on one side of the upper chord member, and then a web member and a lower node plate are sequentially arranged below the upper node plate. The lower gusset plate is arranged on one side of the lower chord member, and it is to be noted that the upper gusset plate is arranged on one side of the upper chord member, the lower gusset plate is arranged on one side of the lower chord member, and the two sides are the same side. Thirdly, a supporting mechanism is arranged below the lower chord member, and specifically, a self-slope adjusting mechanism and a jacking mechanism can be sequentially arranged below the lower chord member. Fourthly, a bolster and a capping beam are sequentially arranged below the jacking mechanism.
It is also because a pair of second transfer units are symmetrically disposed on one side of the first transfer unit, one of which, the T-beam and the first transfer unit, can carry bridge deck loads. The second transfer assembly and the second transfer assembly can share the bridge deck load borne by the first transfer assembly, so that the load of the bridge deck is reduced. That is, the first transfer assembly and the second transfer assembly may collectively bear the deck load.
Therefore, by adopting the technical scheme of the utility model, the load sharing efficiency of the bridge deck is greatly improved.
Drawings
FIG. 1 is a schematic view of a cross-bridge of a load transfer apparatus for a bridge system according to the present utility model;
FIG. 2 is a schematic view of the rightmost transfer mechanism and underlying support mechanism of FIG. 1 in a forward-bridge direction;
FIG. 3 is an enlarged schematic view of the upper chord, upper gusset, and web of FIG. 2;
FIG. 4 is an enlarged schematic view of the lower chord, lower gusset, vertical bar, and web member of FIG. 2;
FIG. 5 is a schematic view of the self-leveling mechanism and the jacking mechanism disposed therebelow without casting concrete in the cavity between the jacking steel plate and the bolster;
FIG. 6 is a schematic view of the structure of FIG. 5 after casting concrete in the cavity between the jacking steel plate and the keystone;
FIG. 7 is a longitudinal section view in the direction II-II in FIG. 3;
reference numerals:
An upper chord member 1, a lower chord member 2, a vertical rod 3;
An upper gusset plate 4, a lower gusset plate 5, web members 6;
slope adjusting steel plate 7, support bearing steel plate 8 and support 9;
a slide plate 10, a support chute 11, a jacking steel plate 12;
leveling bolts 13, limit nuts 14, jacks 15;
Shear nails 16, fixing screws 17, upper pad steel plates 18;
An L-shaped steel plate 19, a first screw 20, a second screw 21;
A third screw 22, a bridge deck 23, a T-beam 24;
Cap beam 25, and bolster 26.
Detailed Description
The present utility model will be described in further detail with reference to examples and drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.
It should be noted that, without conflict, features of embodiments of the present utility model may be combined with each other. The utility model will be described in detail below with reference to examples and with reference to the accompanying drawings.
In the prior art, although a part of the bridge deck load can be borne by both the original beam body (e.g., a T-beam) and the newly added beam body (e.g., an i-beam), the bridge deck load cannot be shared to a large extent (i.e., cannot be effectively shared), and the bridge deck load is reduced. That is, the efficiency of the newly added beam body to share the bridge deck load is lower.
Based on the above, the utility model provides a load transfer device for a bridge system, wherein the first transfer assembly of the transfer mechanism can realize the primary transfer of the load of the bridge deck. The second transfer component of the transfer mechanism can share the bridge deck load borne by the first transfer component, namely, the second transfer of the bridge deck load is realized. And because the second transfer assembly is arranged on the basis of the first transfer assembly, the bridge deck load is effectively transferred, and the transfer efficiency of the bridge deck load is greatly improved.
Fig. 1 is a schematic view of a transverse bridge of a load transfer device for a bridge system according to the present utility model, fig. 2 is a schematic view of a rightmost transfer mechanism and a support mechanism disposed below in fig. 1 in a forward bridge direction, fig. 3 is a schematic view of an enlarged structure of an upper chord member, an upper gusset plate, and a web plate in fig. 2, fig. 4 is a schematic view of an enlarged structure of a lower chord member, a lower gusset plate, a vertical bar, and a web member in fig. 2, fig. 5 is a schematic view of a self-leveling mechanism and a lifting mechanism disposed below the self-leveling mechanism when concrete is not poured in a cavity between a lifting steel plate and a bolster, fig. 6 is a schematic view of a structure of the lifting mechanism after concrete is poured in a cavity between a lifting steel plate and a bolster in fig. 5, and fig. 7 is a longitudinal sectional view in a direction II-II in fig. 3.
Referring to fig. 1 and 2, the load transfer apparatus for a bridge system according to the present utility model includes a transfer mechanism provided between a plurality of T beams 24 for transferring a load of a bridge deck 23, a support mechanism fixedly provided below the transfer mechanism for supporting the transfer mechanism, the support mechanism fixedly provided above a bolster 26, and the transfer mechanism fixedly provided below the bridge deck 23;
The transfer mechanism comprises a plurality of transfer assemblies, each transfer assembly comprises a first transfer assembly and a pair of second transfer assemblies symmetrically arranged on two sides of the first transfer assembly;
The first transfer assembly comprises an upper chord member 1 fixedly arranged below the bridge deck 23, a lower chord member 2 fixedly arranged above the supporting mechanism, and a vertical rod 3 fixedly arranged between the upper chord member 1 and the lower chord member 2;
The second transfer assembly comprises an upper gusset plate 4 fixedly arranged on one side of the upper chord member 1, a lower gusset plate 5 fixedly arranged on one side of the lower chord member 2, and a web member 6 fixedly arranged between the upper gusset plate 4 and the lower gusset plate 5;
The vertical rod 3 is fixedly connected with the upper chord member 1, and the vertical rod 3 is fixedly connected with the lower gusset plate 5;
the supporting mechanism comprises a self-adjusting slope mechanism arranged below the supporting mechanism, and a jacking mechanism fixedly arranged below the self-adjusting slope mechanism and used for jacking the self-adjusting slope mechanism;
the self-slope adjusting mechanism comprises a slope adjusting steel plate 7, a support bearing steel plate 8, a support 9, a sliding plate 10 and a support sliding groove 11 which are sequentially arranged from top to bottom, wherein a spherical convex part is arranged at the bottom of the slope adjusting steel plate 7, a spherical groove matched with the spherical convex part is formed in the top of the support bearing steel plate 8, a support 9 is arranged at the bottom of the support bearing steel plate 8, a sliding plate 10 is arranged at the bottom of the support 9, and the sliding plate 10 is positioned in the support sliding groove 11 matched with the sliding plate 10;
The jacking mechanism comprises a jacking steel plate 12 fixedly arranged below the support chute 11, leveling bolts 13 penetrating through four corners of the jacking steel plate 12, limit nuts 14 arranged below the leveling bolts 13 and used for limiting the height of the jacking steel plate 12, and a jack 15 arranged in a cavity between the backing stone 26 and the jacking steel plate 12 and used for jacking the jacking steel plate 12 upwards, wherein the leveling bolts 13 are arranged in the backing stone 26.
In the lifting mechanism, when the jack 15 works, the lifting steel plate 12 can be lifted upwards, so that the upper chord member 1 (belonging to the first transfer assembly) moves upwards, the top of the upper chord member 1 is lifted at the bottom of the bridge deck 23, and after the lifting force reaches the requirement, the height of the lifting steel plate 12 can be fixed by using the limit nut 14, so that the stability of the lifting force upwards is ensured.
Further, when the vehicle runs on the bridge deck 23, the transferring mechanism receives downward pressure (i.e. bridge deck load), and as can be seen from the foregoing, the jacking mechanism has upward jacking force and balanced jacking force to the transferring mechanism, and since the transferring mechanism includes the second transferring assembly, the second transferring assembly can reduce the pressure received by the first transferring assembly, so as to share the bridge deck load borne by the first transferring assembly, and greatly improve the bridge deck load sharing efficiency.
In the self-leveling mechanism, when the vehicle applies downward pressure to the bridge deck 23, the spherical protruding portion formed at the bottom of the leveling steel plate 7 can rotate 360 ° in the spherical groove formed at the bottom of the support pressure-bearing steel plate 8, for example, the spherical protruding portion of the leveling steel plate 7 can automatically deflect with the change of the stress, so that the support pressure-bearing steel plate 8 is stressed uniformly.
In the self-leveling mechanism, when the vehicle applies downward pressure to the deck plate 23 so that the gradient of the deck plate 23 changes to some extent, the slide plate 10 disposed below (i.e., the deck plate 23) is closely attached to the support 9, a sliding gap exists between the slide plate 10 and the support chute 11 disposed at the outer periphery of the slide plate 10, and the slide plate 10 can slide in the gap (e.g., slide back and forth and left and right) until it slides to the portion to be supported, thereby realizing the support of the deck plate 23.
Alternatively, the slide plate 10 may be replaced by silicone grease, so as to ensure that the slide plate 10 can slide in the support chute 11.
Alternatively, the support bearing steel plate 8 and the support 9 may be independent components or integrated components, and may be specifically set according to practical situations.
In a specific implementation, first, a supporting mechanism (specifically, a self-leveling mechanism and a jacking mechanism) is installed on the cushion stone 26.
Secondly, a first transfer component and a part of a second transfer component (specifically, a lower node plate 5) are installed above the self-slope adjusting mechanism, for example, the upper chord member 1 can be fixedly arranged below the bridge deck 23 (for example, through shear nails), then the vertical rod 3 is welded on the lower surface of the upper chord member 1, then the lower node plate 5 is welded below the vertical rod 3, the lower chord member 2 is welded on one side of the lower node plate 5, and finally the lower chord member 2 and the supporting mechanism (specifically, the slope adjusting steel plate 7) are fixedly connected.
Third, install the surplus second transfer assembly on the first transfer assembly, set up the upper gusset plate 4 on one side of the upper chord member 1 first, then set up a pair of web members 6 symmetrically under the upper gusset plate 6, then the above-mentioned a pair of web members 6 is connected with lower gusset plate 5. It will be appreciated that the lower gusset 5 is mounted to one side of the lower chord 2.
It will be appreciated that the upper gusset 4 is provided on one side of the upper chord 1 (denoted as the first side) and the lower gusset 5 is provided on one side of the lower chord 2 (denoted as the second side), the first and second sides being the same side.
The beneficial effect reasoning analysis is as follows:
In the prior art, although a part of the bridge deck load can be borne by both the original beam body (e.g., a T-beam) and the newly added beam body (e.g., an i-beam), the bridge deck load cannot be shared to a large extent (i.e., cannot be effectively shared), and the bridge deck load is reduced. That is, the efficiency of the newly added beam body to share the bridge deck load is lower.
In the technical scheme provided by the utility model, the first transfer assembly is arranged below the bridge deck, and specifically, the upper chord member 1, the vertical rod 3 and the lower chord member 2 can be arranged below the bridge deck in sequence. And two pairs of second transfer assemblies are symmetrically arranged on two sides of the first transfer assembly, specifically, an upper gusset plate 4 can be arranged on one side of the upper chord member 1, and then a web member 6 and a lower gusset plate 5 are sequentially arranged below the upper gusset plate 4. The lower gusset 5 is disposed on one side of the lower chord 2, and the upper gusset 4 is disposed on one side of the upper chord 1, and the lower gusset 5 is disposed on one side of the lower chord 5, and the two sides are the same. Thirdly, a supporting mechanism is arranged below the lower chord 5, and specifically, a self-slope adjusting mechanism and a jacking mechanism can be arranged below the lower chord 5 in sequence. Fourthly, a bolster 26 and a capping beam 25 are sequentially arranged below the jacking mechanism.
It is also because a pair of second transfer units are symmetrically positioned on one side of the first transfer unit, one of which, the T-beam 24 and the first transfer unit, can carry bridge deck loads. The second transfer assembly and the second transfer assembly can share the bridge deck load borne by the first transfer assembly, so that the load of the bridge deck is reduced. That is, the first transfer assembly and the second transfer assembly may collectively bear the deck load.
Therefore, by adopting the technical scheme of the utility model, the load sharing efficiency of the bridge deck is greatly improved.
In the embodiments described above, a load transfer apparatus for a bridge system is described, and in another embodiment of the present utility model, a specific connection manner between the bridge deck 23, the first transfer unit, and the second transfer unit is described.
For example, the bridge deck 23 is fixedly connected with the upper chord member 1 through shear nails 16, the upper chord member 1 is fixedly connected with the upper node plate 4 through a first connecting component, and the upper node plate 4 is connected with the web member 6 through fixing screws 17;
the web member 6 is connected with the lower gusset plate 5 through a fixing screw 17, and the lower gusset plate 5 is connected with the lower chord member 2 through a fixing screw 17.
The upper chord member 1 and the upper node plate 4 are fixedly connected through a first connecting component, the lower node plate 5 and the lower chord member 2 are fixedly connected through a fixing screw 17, and although the connection relationship between the chord member and the node plate is different, the purpose is to connect the chord member, the web member 6 and the node plate, so that the web member 6 (belonging to a second connecting component) can share the bridge deck load borne by the chord member (belonging to the first connecting component).
In particular, the upper chord 1 may be connected by shear pins 16 under the deck slab 23 first. Next, the upper gusset plate 4 is connected to the side of the upper chord 1 by a first connecting member. Thirdly, the upper gusset plate 4 and the web member 6 are connected by a set screw 17.
In the embodiments described above, specific connections between the bridge deck, the first transfer set, and the second transfer set are described. In another embodiment of the present utility model, the relative positional relationship between web member 6 and lower chord 2 is described.
For example, the range of angles between the center line of web member 6 and the center line of lower chord member 2 includes [20 °,80 ° ], where 20 ° is the lower limit value of the angle and 80 ° is the upper limit value of the angle.
Preferably, the load-bearing capacity of web member 6 is better when the angle is 45.
In a specific implementation, when the web member 6 is mounted on the lower chord member 2, the subsequent mounting may be performed when the angle between the web member 6 and the lower chord member 2 is adjusted to a suitable angle (for example, 45 °).
In the foregoing embodiment, the relative positional relationship between the web member 6 and the lower chord 2 was described. In another embodiment of the present utility model, a specific structure of the first connection assembly is described.
For example, the first connection assembly includes an upper bolster plate 18 disposed below the upper chord 1, a pair of L-shaped steel plates 19 vertically symmetrically disposed at both sides of the upper bolster plate 18 and fixedly connected with the upper bolster plate 18 through shear pins 16, the L-shaped steel plates 19 and the upper gusset plate 4 are fixedly connected through first screws 20, the upper gusset plate 4 and the web member 6 are connected through second screws 21, and the upper gusset plate 4 and the upper bolster plate 18 are fixedly connected through third screws 22.
The upper chord 1 and the upper gusset 4 are connected by an upper washer plate 18, a shear pin 16, an L-shaped plate 19, a first screw 20, and a third screw 22. It will be appreciated that the above-described assembly belongs to a first connection assembly, with the aim of connecting the upper chord 1 and the upper gusset 4.
In the foregoing embodiments, the specific structure of the first connection assembly is described. In another embodiment of the present utility model, specific connection relationships among the vertical rod 3, the upper chord 1, and the lower gusset 5 are described.
For example, the vertical rod 3 and the upper chord 1 are connected by a second screw 21, and the vertical rod 3 and the lower gusset 5 are connected by the second screw 21.
Wherein the upper end of the vertical rod 3 is connected with the chord member 2, and the lower end is connected with the gusset plate, so as to realize the connection of the first transfer assembly (comprising the vertical rod 3 and the upper chord member 1) and the second transfer assembly (comprising the gusset plate, for example, the lower gusset plate 5), thereby enabling the second transfer assembly to share the bridge deck load born by the first transfer assembly.
In a specific implementation, first, a first transfer assembly (comprising in particular the upper chord 1 and the vertical rod 3) may be provided below the bridge deck 23. Next, a lower gusset plate 5 may be installed at one side of the lower end of the vertical bar 3, thereby completing the connection of the first transfer member and the second transfer member.
In the embodiments described above, specific connection relationships among the vertical rod 3, the upper chord 1, and the lower gusset 5 are described. In another embodiment of the present utility model, specific types of first screw 20, second screw 21, and third screw 22 are described.
For example, the first screw 20 comprises a limit screw, the second screw 21 comprises a set screw, and the third screw 22 comprises a thrust screw.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (6)
1. A load transfer apparatus for a bridge system including a deck plate (23), a plurality of T beams (24) provided below the deck plate (23) for bearing the load of the deck plate (23), a cap beam (25) provided below the plurality of T beams (24) for transmitting the load of the deck plate (23) to the ground, and a packing (26) over the cap beam (25) for installing the load transfer apparatus, characterized by comprising:
A transfer mechanism arranged between the plurality of T beams (24) and used for transferring the load of the bridge deck (23), a support mechanism fixedly arranged below the transfer mechanism and used for supporting the transfer mechanism, the support mechanism is fixedly arranged above the filler stone (26), and the transfer mechanism is fixedly arranged below the bridge deck (23);
The transfer mechanism comprises a plurality of transfer assemblies, each transfer assembly comprises a first transfer assembly and a pair of second transfer assemblies symmetrically arranged on two sides of the first transfer assembly;
The first transfer assembly comprises an upper chord member (1) fixedly arranged below the bridge deck (23), a lower chord member (2) fixedly arranged above the supporting mechanism, and a vertical rod (3) fixedly arranged between the upper chord member (1) and the lower chord member (2);
The second transfer assembly comprises an upper node plate (4) fixedly arranged on one side of the upper chord member (1), a lower node plate (5) fixedly arranged on one side of the lower chord member (2), and a web member (6) fixedly arranged between the upper node plate (4) and the lower node plate (5);
the vertical rod (3) is fixedly connected with the upper chord member (1), and the vertical rod (3) is fixedly connected with the lower gusset plate (5);
The supporting mechanism comprises a self-adjusting slope mechanism arranged below the supporting mechanism, and a jacking mechanism fixedly arranged below the self-adjusting slope mechanism and used for jacking the self-adjusting slope mechanism;
The slope self-adjusting mechanism comprises a slope adjusting steel plate (7), a support bearing steel plate (8), a support (9), a sliding plate (10) and a support sliding groove (11) which are sequentially arranged from top to bottom, a spherical convex part is arranged at the bottom of the slope adjusting steel plate (7), a spherical groove matched with the spherical convex part is formed in the top of the support bearing steel plate (8), the support (9) is arranged at the bottom of the support bearing steel plate (8), the sliding plate (10) is arranged at the bottom of the support (9), and the sliding plate (10) is positioned in the support sliding groove (11) matched with the sliding plate (10);
the jacking mechanism comprises a jacking steel plate (12) fixedly arranged below the support sliding groove (11), leveling bolts (13) penetrating through four corners of the jacking steel plate (12), limit nuts (14) arranged below the leveling bolts (13) and used for limiting the height of the jacking steel plate (12), and jacks (15) arranged in a cavity between the support sliding groove (26) and the jacking steel plate (12) and used for jacking the jacking steel plate (12) upwards, wherein the leveling bolts (13) are arranged in the support sliding groove (26).
2. The load transfer device for the bridge system according to claim 1, wherein the bridge deck (23) is fixedly connected with the upper chord member (1) through shear nails (16), the upper chord member (1) is fixedly connected with the upper node plate (4) through a first connecting component, and the upper node plate (4) is connected with the web member (6) through fixing screws (17);
The web member (6) is connected with the lower gusset plate (5) through the fixing screw (17), and the lower gusset plate (5) is connected with the lower chord member (2) through the fixing screw (17).
3. A load transfer apparatus for a bridge system according to claim 2, wherein the range of angles between the center line of the web member (6) and the center line of the lower chord member (2) includes [20 °,80 ° ], wherein 20 ° is an angle lower limit value and 80 ° is an angle upper limit value.
4. The load transfer device for a bridge system according to claim 2, wherein the first connecting assembly comprises an upper cushion steel plate (18) arranged below the upper chord member (1), a pair of L-shaped steel plates (19) which are vertically and symmetrically arranged on two sides of the upper cushion steel plate (18) and fixedly connected with the upper cushion steel plate (18) through shear nails (16), the L-shaped steel plates (19) and the upper node plates (4) are fixedly connected through first screws (20), the upper node plates (4) and the web members (6) are connected through second screws (21), and the upper node plates (4) and the upper cushion steel plates (18) are fixedly connected through third screws (22).
5. A load transfer apparatus for a bridge system according to claim 4, wherein the vertical rod (3) and the upper chord (1) are connected by the second screw (21), and the vertical rod (3) and the lower gusset plate (5) are connected by the second screw (21).
6. A load transfer apparatus for a bridge system according to claim 5, wherein the first screw (20) comprises a stop screw, the second screw (21) comprises a set screw, and the third screw (22) comprises a thrust screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520173898.6U CN223837946U (en) | 2025-01-24 | 2025-01-24 | A load transfer device for a bridge system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520173898.6U CN223837946U (en) | 2025-01-24 | 2025-01-24 | A load transfer device for a bridge system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223837946U true CN223837946U (en) | 2026-01-27 |
Family
ID=98513369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520173898.6U Active CN223837946U (en) | 2025-01-24 | 2025-01-24 | A load transfer device for a bridge system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223837946U (en) |
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2025
- 2025-01-24 CN CN202520173898.6U patent/CN223837946U/en active Active
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