WO2023019781A1

WO2023019781A1 - Stable bridge tower pier based on complex pier beam and manufacturing process therefor

Info

Publication number: WO2023019781A1
Application number: PCT/CN2021/131859
Authority: WO
Inventors: 刘小平; 田强; 周健; 徐健; 王芳
Original assignee: 江苏沪宁钢机股份有限公司
Priority date: 2021-08-17
Filing date: 2021-11-19
Publication date: 2023-02-23
Also published as: CN113481835A

Abstract

A stable bridge tower pier based on a complex pier beam, comprising: a group of pier beam consolidation sections (1), a bottom plate unit (2), an inner box plate unit (3), a main beam (4), a group of inner box supports (5), a middle bridge deck slab (6), and a group of overhanging bridge deck slab assemblies (7). The pier beam consolidation sections (1) are oppositely arranged; the bottom plate unit (2) is provided above the pier beam consolidation sections (1); the inner box plate unit (3) is provided above the bottom plate unit (2); the main beam (4) is provided on the bottom plate unit (2) and two ends of the in-box plate unit (3); the inner box supports (5) are provided on the bottom plate unit (2), on the outer side of the inner box plate unit (3), and between two pier beam consolidation sections (1); the middle bridge deck slab (6) is provided above the inner box plate unit (3) and between two pier beam consolidation sections (1); and the overhanging bridge deck slab assemblies (7) are provided on the sides of the pier beam consolidation sections (1) away from the middle bridge deck slab (6). The support performance of the tower pier is improved by optimizing the structure of the tower pier and providing the pier beam consolidation sections, and moreover, the structure also improves the support capability of a bridge deck, and effectively prevents deformation of the tower pier in the construction and use process thereof.

Description

A stable bridge tower pier based on complex pier beams and its manufacturing process

technical field

The invention belongs to the technical field of steel structure buildings, in particular to a stable bridge tower pier based on complex pier beams and a manufacturing process thereof.

Background technique

Steel structure building is a new type of building system, which breaks through the industry boundaries among real estate, construction, and metallurgical industries, and integrates them into a new industrial system. Compared with traditional concrete buildings, steel structure buildings use steel plates or section steel instead of reinforced concrete, which has higher strength and better earthquake resistance. And because the components can be manufactured in a factory and installed on site, the construction period is greatly reduced. Due to the reusable use of steel, construction waste can be greatly reduced, and it is more environmentally friendly, so it is widely adopted by countries all over the world and used in industrial buildings and civil buildings.

The bridge pier is an important part of the bridge. It is the supporting part of the bridge. Its quality directly affects the bearing capacity and safety of the bridge. However, most of the existing bridge piers are hollow and cylindrical. The cement pier not only has a long construction period, but the steel material of this node is Q345qD, Q420qE-Z35, and the thickness is up to 48mm. It has poor weldability, serious lamellar tearing tendency, large welding residual stress, and the impact of welding deformation on accuracy. Such unfavorable factors seriously affect the welding quality, and the welding quality of thick plates has a direct impact on this project. The structure is prone to serious angular deformation, twisting deformation, partial or overall deformation during the welding process. Compared with the thick plate welded structure, if the welding deformation is not effectively controlled, it will directly lead to serious out-of-tolerance accuracy of the external dimension of the component , the accuracy of the components simply cannot meet the design and specification requirements, especially it will bring unimaginable construction difficulties to the installation;

At the same time, in the process of use, once a certain part of the pier is damaged, it needs to be repaired as a whole, and some even need to be pushed to rebuild, which not only takes a lot of time and manpower, but also changes the original pier beam. performance in all aspects of the structure.

Contents of the invention

Purpose of the invention: In order to overcome the above deficiencies, the purpose of the present invention is to provide a stable bridge tower pier based on complex pier beams, which has a simple structure and reasonable design. The supporting performance of the tower pier is greatly improved, and the mutual cooperation of the bottom plate unit, the box inner plate unit, the main girder, a group of box inner supports and the middle bridge deck not only improves the supporting capacity of the bridge deck, but also It can effectively prevent deformation during its construction and use.

Technical solution: In order to achieve the above purpose, the present invention provides a stable bridge tower pier based on complex pier beams, including: a set of pier beam consolidation sections, bottom plate units, box inner plate units, main girders, a set of box inner Support, intermediate bridge deck and a set of cantilever bridge deck components, the pier beam consolidation section is arranged opposite, the bottom plate unit is set above the pier beam consolidation section, and the box inner plate unit is set above the bottom plate unit , the main beam is set on the bottom plate unit and at both ends of the box inner plate unit, the box inner support is set on the bottom plate unit, and placed on the outside of the box inner plate unit, and is set on two pier beams Between the knot sections, the middle bridge deck is set above the box inner plate unit and placed between the two pier beam consolidation sections, and the cantilever bridge deck assembly is set at the pier beam consolidation section away from the middle bridge deck side, and the cantilever bridge deck assembly is matched with the middle bridge deck. A stable bridge pier based on complex pier beams according to the present invention, by optimizing the structure of the pier and setting the consolidation section of the pier beam, the supporting performance of the pier is greatly improved, and the bottom plate The mutual cooperation of unit, box inner plate unit, main girder, a group of box inner supports and the middle bridge deck not only improves the supporting capacity of the bridge deck, but also can effectively prevent its deformation during construction and use, thus effectively The stability and safety of using the tower pier are improved.

Wherein, the pier beam consolidation section includes a bottom plate, a middle web, a middle diaphragm, a side web, a port diaphragm and a group of outer web side plates, the middle web is arranged on the bottom plate, and the middle diaphragm The plate is arranged on the bottom plate and at both ends of the middle web, the side web is arranged at one side of the middle diaphragm, the port diaphragm is arranged at one end of the side web far from the middle web, and the outer The ventral side plate is arranged on the bottom plate, and is arranged on both sides of the middle diaphragm and the port diaphragm. The pier-beam consolidation section adopts a unique structural design, which greatly improves its structural stability and effectively improves its supporting performance, so as to better meet the needs of the bridge.

Further, the box inner panel unit includes a central web, a set of transverse partitions and a set of side panels, the transverse partitions are arranged on both sides of the central web, and the side panels are arranged on the transverse partitions and set parallel to the middle web, and the two sides of the middle web and the diaphragm and the inner side of the side plate are provided with stiffening plates, and a horizontal A reinforcing plate, the horizontal reinforcing plate is vertically arranged with the stiffening plate.

Further, the cantilevered bridge deck assembly includes a first cantilevered panel assembly and a second cantilevered panel assembly, one side of the first cantilevered panel assembly is connected to the main girder, and the other side is connected to the second cantilevered panel Component connections. The setting of the first cantilevered panel assembly and the second cantilevered panel assembly allows it to realize a split design, so that the two can better cooperate with the main beam.

Further, the second cantilevered panel assembly includes a cantilevered panel and a set of first support frames, the first supports are erected under the cantilevered panel, and the cantilevered panel is also provided with a set of connecting box columns. The second cantilevered panel assembly is connected to the first cantilevered panel assembly through the first support frame, and the second cantilevered panel assembly is connected to the main beam by connecting the box column with the setting, so that the lower part forms a triangular structure, effectively Improve the stability of its connection.

In addition, the present invention also includes a group of outward supports, one end of which is connected to the pier beam consolidation section, and the other end is connected to the connecting box column.

Further, the floor unit includes a floor body and a set of support beams, the support beams are arranged on the floor body, and connecting ear plates are provided on the support beams.

Further, the support in the box is in an inverted V shape, which includes a T-shaped top plate and a set of second support frames. The second support is erected under the T-shaped top plate, and the two are set in reverse. One end of the second support frame is connected with the T-shaped top plate, and the other end is connected with the connecting ear plate. The setting of the support in the inverted V-shaped box greatly improves the stability of the connection between the bottom plate unit and the middle bridge deck, and at the same time effectively prevents it from being deformed during use.

Further, the present invention also includes a group of bridge towers, the bridge towers are arranged above the pier beam consolidation section, and connecting beams are arranged between the two bridge towers.

Further, both sides of the middle web are provided with a group of middle partition diaphragms, between the middle partition diaphragms, between the middle partition diaphragm and the middle diaphragm, and between the middle diaphragm and the middle diaphragm. Embedding partitions are arranged between the port transverse partitions.

It can be seen from the foregoing technical scheme that the present invention has the following beneficial effects:

1. According to the present invention, a kind of stable bridge pier based on complex pier beams, by optimizing the structure of the pier, the setting of the consolidation section of the pier beam greatly improves the supporting performance of the pier, and the The mutual cooperation of the base plate unit, the box inner plate unit, the main girder, a set of box supports and the middle bridge deck not only improves the supporting capacity of the bridge deck, but also effectively prevents deformation during its construction and use, thereby The stability and safety of the tower pier are effectively improved.

2. A stable, deformation-resistant tower pier described in the present invention adopts a split structure design. If a problem occurs in a certain part, it can be repaired or replaced locally, and the original bearing and stability of the structure will not be changed. It does not need to be pushed to reconstruction, so that it can reduce the investment in construction costs while ensuring the safety of use.

3. The pier beam consolidation section of the present invention adopts a unique structural design, which greatly improves the stability of its structure and effectively improves its supporting performance, so as to better meet the needs of the bridge.

4. The second cantilevered panel assembly described in the present invention is connected to the first cantilevered panel assembly through the first support frame, and through the connection of the box column and the setting, the second cantilevered panel assembly is connected to the box on one side of the main girder. The outer support connection makes its lower part form a triangular structure, which effectively improves the stability of its connection.

Description of drawings

Fig. 1 is the structural representation of the stable bridge tower pier based on complex pier beam according to the present invention;

Fig. 2 is the structural representation of pier beam consolidation section in the present invention;

Fig. 3 is the structural representation of the panel unit in the box in the present invention;

Fig. 4 is a structural schematic diagram of a bottom plate unit in the present invention;

Fig. 5 is a schematic structural view of the second cantilevered panel assembly in the present invention;

Fig. 6 is a schematic structural view of the support in the box in the present invention;

Fig. 7 is the structural representation of main girder among the present invention;

Fig. 8 is the local structure schematic diagram of pier beam consolidation section in the present invention;

Fig. 9 is a schematic diagram of the installation of the middle web, the middle diaphragm, the side web and the port diaphragm in the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientations or positional relationships indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" are based on the attached The orientation or positional relationship shown in the figure is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a reference to this invention. Invention Limitations.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

Example 1

As shown in Figures 1 to 7, a stable bridge tower pier based on complex pier beams includes: a set of pier beam consolidation section 1, bottom plate unit 2, box inner plate unit 3, main girder 4, a set of box inner Support 5, intermediate bridge deck 6 and a group of cantilevered bridge deck assemblies 7, the pier beam consolidation section 1 is arranged oppositely, the bottom plate unit 2 is arranged above the pier beam consolidation section 1, and the box inner panel unit 3 is set above the bottom plate unit 2, the main beam 4 is set on the bottom plate unit 2, and is set at both ends of the box inner plate unit 3, and the box inner support 5 is set on the bottom plate unit 2, and placed in the box The outer side of the inner plate unit 3 is arranged between the two pier beam consolidation sections 1, and the intermediate bridge deck 6 is arranged above the box inner panel unit 3 and is placed between the two pier beam consolidation sections 1. The cantilevered bridge deck assembly 7 is arranged on the side of the pier beam consolidation section 1 away from the middle bridge deck 6 , and the cantilevered bridge deck assembly 7 cooperates with the middle bridge deck 6 .

The pier beam consolidation section 1 in this embodiment includes a bottom plate 11, a middle web 12, a middle diaphragm 13, a side web 14, a port diaphragm 15, and a set of outer ventral side plates 16. The middle web 12 Set on the bottom plate 11, the middle transverse partition 13 is set on the bottom plate 11 and at both ends of the middle web 12, the side web 14 is set on one side of the middle transverse divider 13, and the port transverse The partition 15 is arranged at one end of the side web 14 far away from the web 12 , and the outer ventral side plate 16 is arranged on the bottom plate 11 and on both sides of the middle diaphragm 13 and the port diaphragm 15 .

In this embodiment, the box inner panel unit 3 includes a middle web 31, a group of transverse partitions 32 and a group of side panels 33, the transverse partitions 32 are arranged on both sides of the middle web 31, and the side The side plate 33 is arranged on the outer side of the transverse diaphragm 32 and arranged parallel to the middle web 31, and the two sides of the middle web 31 and the transverse diaphragm 32 and the inner side of the side plate 33 are provided with a stiffening plate 34, and A horizontal reinforcing plate is arranged between the middle web 31 and the side plate 33 , and the horizontal reinforcing plate is vertically arranged with the stiffening plate 34 .

The cantilevered bridge deck assembly 7 in this embodiment includes a first cantilevered panel assembly 71 and a second cantilevered panel assembly 72, one side of the first cantilevered panel assembly 71 is connected to the main girder 4, and the other side It is connected with the second overhanging panel assembly 72 .

In this embodiment, the second cantilevered panel assembly 72 includes a cantilevered panel 721 and a set of first support frames 722, the first support frame 722 is arranged below the cantilevered panel 721, and the cantilevered panel 721 A set of connecting box columns 723 is also provided.

This embodiment includes a set of outward supports 8 , one end of the outward supports 8 is connected to the pier beam consolidation section 1 , and the other end is connected to the connecting box column 723 .

In this embodiment, the floor unit 2 includes a floor body 21 and a set of support beams 22 , the support beams 22 are arranged on the floor body 21 , and the support beams 22 are provided with connecting ear plates 23 .

In this embodiment, the support 5 in the box is in an inverted V shape, which includes a T-shaped top plate 51 and a set of second support frames 52, and the second support frames 52 are arranged under the T-shaped top plate 51, and both Arranged in reverse, one end of the second support frame 52 is connected to the T-shaped top plate 51 , and the other end is connected to the connecting ear plate 23 .

This embodiment also includes a group of bridge towers 9, said bridge towers 9 are arranged above the pier beam consolidation section 1, and a connecting beam 10 is arranged between the two bridge towers 9.

In this embodiment, the two sides of the middle web 12 are provided with a set of middle segmental diaphragms 17, between the middle segmental diaphragms 17 and between the middle segmental diaphragms 17 and the middle diaphragms 13 And between the middle horizontal partition 13 and the port horizontal partition 15, there are embedded partitions 18.

Example 2

As shown in Figures 1 to 1, a stable bridge tower pier based on complex pier beams includes: a set of pier beam consolidation sections 1, a bottom plate unit 2, a box inner plate unit 3, a main girder 4, and a set of box inner supports 5 , the middle bridge deck 6 and a group of cantilevered bridge deck assemblies 7, the pier beam consolidation section 1 is relatively arranged, the bottom plate unit 2 is arranged above the pier beam consolidation section 1, and the box inner panel unit 3 is set Above the bottom plate unit 2, the main beam 4 is set on the bottom plate unit 2 and at both ends of the box inner panel unit 3, and the box inner support 5 is set on the bottom plate unit 2 and placed on the box inner panel The outer side of the unit 3, and is arranged between the two pier beam consolidation sections 1, the middle bridge deck 6 is arranged above the box inner panel unit 3, and is placed between the two pier beam consolidation sections 1, the suspension The cantilever bridge deck assembly 7 is arranged on the side of the pier beam consolidation section 1 away from the middle bridge deck 6 , and the cantilever bridge deck assembly 7 cooperates with the middle bridge deck 6 .

In this embodiment, the two sides of the middle web 12, the middle diaphragm 13, the side web 14, and the middle partition diaphragm 17, as well as the inner side of the port diaphragm 15 and the outer ventral side plate 16 are provided with vertical Stiffeners 19, and the vertical stiffeners 19 on the middle transverse diaphragm 13 and the middle segmental transverse diaphragm 17 cooperate with the vertical stiffeners 19 on the middle web 12 and side webs 14.

In this embodiment, a group of first transverse stiffeners 20 are arranged on both sides of the middle web 12 and the side web 14, and the first transverse stiffeners 20 are arranged vertically to the vertical stiffeners 19, and the first transverse stiffeners One side of the stiffening plate 20 close to the vertical stiffening plate 19 is provided with a set of grooves, and the vertical stiffening plate 19 is clamped in the grooves.

In this embodiment, between the middle diaphragm 13 and the port diaphragm 15, between the port diaphragm 15 and the middle partition diaphragm 17, and between the adjacent two middle partition diaphragms 17 A second transverse stiffening plate 131 is provided, and a set of grooves are provided on the outside of the second transverse stiffening plate 131, and the vertical stiffening plate 19 on the inner side of the port diaphragm 15 and the outer ventral side plate 16 is inserted into the grooves , and the second transverse stiffener 131 is disposed opposite to the first transverse stiffener 20 .

In this embodiment, the vertical stiffening plate 19 includes a vertical stiffening plate body, one side of the vertical stiffening plate body is provided with a set of stiffening connecting plates 191, and U-shaped grooves are arranged between the stiffening connecting plates 191 , the interlocking partition 18 is arranged on the outer side of the stiffened connecting plate 191 , and is welded and fixed with the stiffened connecting plate 191 .

In this embodiment, the transverse stiffening plate 20 is U-shaped, and a set of weight-reducing holes is arranged on it.

In this embodiment, the middle transverse partition 13 and the middle segmented transverse partition 17 are both provided with weight-reducing waist holes.

In this embodiment, the outer sides of the side web 14 and the outer ventral side plate 16 are provided with a horizontal stiffening plate 141 and a first vertical stiffening plate 142, and the first vertical stiffening plate 142 is vertically arranged on the horizontal stiffening plate 141 below.

In this embodiment, a polygonal reinforcing plate 143 is provided at the junction of the first vertical stiffening plate 142 , the horizontal stiffening plate 141 and the bottom plate 11 .

A set of pier beam consolidation section 1, bottom plate unit 2, box inner plate unit 3, main girder 4, a set of box inner support 5, intermediate bridge deck 6 and a set of cantilever bridge deck components 7

In this embodiment, the manufacturing process of the stable bridge tower pier based on the complex pier beam is as follows: 1): First, the pier beam consolidation section 1 is decomposed and assembled according to the drawings;

2): The bottom plate unit 2 is installed above the pier beam consolidation section 1;

3): Install the inner panel unit 3 above the bottom panel unit 2;

4): Install the middle bridge deck 6 above the inner panel unit 3;

5): Set the box inner support 5 outside the box inner panel unit 3, and weld the upper and lower sides of the box inner support 5 to the middle bridge deck 6 and the bottom plate unit 2 respectively;

6): Install the main girder 4 above the floor unit 2, and place it at both ends of the inner panel unit 3 and the middle bridge deck 6;

7): install the first cantilevered panel assembly 71 on the outer side of the main girder 4 away from the intermediate bridge deck 6, and then install the second cantilevered panel assembly 72;

8): Connect the connecting box column 723 in the second cantilever panel assembly 72 with the main beam 4 through the outer support 8 to form a triangular support.

The specific construction process of the pier-beam consolidation section 1 described in the present embodiment is as follows: 1): first, according to the drawings, the pier-beam consolidation section is split into parts, that is, it is split into base plate 11, middle web 12, Middle diaphragm 13, side web 14, port diaphragm 15 and a set of outer ventral side plates 16;

2): Assembling and welding the base plate 11, the base plate 11 is pre-assembled and welded according to the external dimensions through CNC cutting, and then accurately positioned after cold processing and leveling. When positioning, a certain amount of welding is pre-placed in the length direction and width direction of the base plate Shrinkage, in order to control welding deformation;

3): The middle web 12 is positioned, and the middle web 12 is first made into a small closing unit. During the production process, the upper end of the vertical stiffener 19 is reserved for 300mm slow welding. When positioning, the verticality of the web and the upper port are strictly controlled. levelness;

4): Assemble the central diaphragm 13, pre-fabricate the small closing unit of the central diaphragm by CNC blanking, and strictly control the verticality between the two sides and the outer ventral side plate 16 and the levelness of the upper port during the production process, At the same time, the welding gap with the middle web 12 must be guaranteed;

5): Assemble the side web 14, first make the side web 14 closing parts, during the production process, the upper port of the vertical stiffener 19 is reserved for 300mm slow welding, and the verticality of the web and the upper port are strictly controlled during positioning level of

6): Assemble the port diaphragm 15, pre-fabricate the small closing unit of the port diaphragm, strictly control the verticality of the two sides and the levelness of the upper port during the positioning of the port diaphragm during the manufacturing process, and at the same time must control the connection with the side belly Weld gap between plates;

7): Assemble the central partial diaphragm 17, that is, install the central partial diaphragm 17 on both sides of the central web 12. When assembling, strictly control the verticality of the two sides and the levelness of the upper port, and must control The gap between the weld and the middle web;

8): Assemble the patching partitions 18, set the patching partitions 18 on the stiffener plates of the middle diaphragm 13, the port diaphragm 15 and the middle block diaphragm 17, and use ceramic backing plate welding grooves at the joints form, one-sided welding and two-sided forming, so as to ensure the internal welding operation space of the diaphragm and the middle web unit;

9): Assembling the outer ventral side plate 16, the outer ventral side plate 16 is prefabricated first. During the production process, 300° of slow welding is reserved for the upper port of the vertical stiffener 19, and the web needs to be strictly controlled during positioning. verticality and horizontality of the upper port.

In this embodiment, the pier beam consolidation section 1 has a net weight of 177 tons, an external dimension of 17896 in length, 4096 in width and 4948 in height. The bottom plate 11 has a thickness of 48mm, the thickness of the surrounding wall panels is 24mm and 48mm, the middle web is 24mm, the side web is 32mm, the thickness of the middle partition is 32mm, the thickness of the middle partition is 24mm, the thickness of the horizontal partition is 20mm, and the thickness of the vertical stiffening partition is 20mm , the thickness of the external vertical stiffener is 20mm.

The above description is only a preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements can also be made, and these improvements should also be regarded as the present invention. protection scope of the invention.

Claims

A stable bridge tower pier based on complex pier beams, characterized in that it includes: a group of pier beam consolidation sections (1), floor units (2), box inner plate units (3), main girders (4), A set of box inner supports (5), an intermediate bridge deck (6) and a set of cantilevered bridge deck components (7), the pier beam consolidation section (1) is arranged oppositely, and the bottom plate unit (2) is arranged on the pier Above the beam consolidation section (1), the box inner plate unit (3) is set above the bottom plate unit (2), and the main beam (4) is set on the bottom plate unit (2) and is set in the box The two ends of the plate unit (3), the box inner support (5) is set on the bottom plate unit (2), and placed on the outside of the box inner plate unit (3), and is set on the consolidation section of the two pier beams (1 ), the middle bridge deck (6) is set above the box inner plate unit (3), and placed between the two pier beam consolidation sections (1), and the cantilever bridge deck assembly (7) is set On the side of the pier beam consolidation section (1) away from the middle bridge deck (6), and the cantilever bridge deck assembly (7) cooperates with the middle bridge deck (6).
The stable bridge tower pier based on complex pier beams according to claim 1, characterized in that: the pier beam consolidation section (1) includes a bottom plate (11), a middle web (12), a middle diaphragm (13 ), side webs (14), port diaphragms (15) and a set of outer ventral side plates (16), the middle web (12) is arranged on the bottom plate (11), and the middle diaphragm (13 ) is located on the bottom plate (11), and located at both ends of the middle web (12), the side web (14) is located on one side of the middle diaphragm (13), and the port diaphragm (15 ) is located at one end of the side web (14) distal to the web (12)), the outer ventral side plate (16) is located on the bottom plate (11), and is located on the middle diaphragm (13) and the port diaphragm Both sides of the plate (15).
The stable bridge tower pier based on complex pier beams according to claim 1, characterized in that: the box inner plate unit (3) includes a middle web (31), a set of transverse diaphragms (32) and a set of Side panels (33), the transverse partitions (32) are arranged on both sides of the middle web (31), the side panels (33) are arranged on the outside of the transverse partition (32), and are connected to the middle web The plates (31) are arranged in parallel, and the two sides of the middle web (31) and the diaphragm (32) and the inner sides of the side plates (33) are provided with stiffening plates (34), and the middle web ( 31) and the side plate (33) are provided with a horizontal reinforcing plate, and the horizontal reinforcing plate is vertically arranged with the stiffening plate (34).
The stable bridge tower pier based on complex pier beam according to claim 2, characterized in that: the cantilevered bridge panel assembly (7) comprises a first cantilevered panel assembly (71) and a second cantilevered panel assembly ( 72), one side of the first cantilevered panel assembly (71) is connected to the main beam (4), and the other side is connected to the second cantilevered panel assembly (72).
The stable bridge tower pier based on complex pier beams according to claim 4, characterized in that: the second cantilevered panel assembly (72) comprises a cantilevered panel (721) and a set of first support frames (722) , the first support frame (722) is arranged under the cantilevered panel (721), and the cantilevered panel (721) is also provided with a set of connecting box columns (723).
The stable bridge tower pier based on the complex pier beam according to claim 5, characterized in that: it includes a group of outward supports (8), and one end of the outward support (8) is connected to the pier beam consolidation section (1 ) connection, and the other end is connected with the connecting box post (723).
The stable bridge tower pier based on complex pier beams according to claim 5, characterized in that: the base plate unit (2) comprises a base plate body (21) and a group of support beams (22), and the support beams (22 ) is located on the bottom plate body (21), and the support beam (22) is provided with a connecting ear plate (23).
The stable bridge tower pier based on complex pier beams according to claim 7, characterized in that: the support (5) in the box is in an inverted V shape, which includes a T-shaped top plate (51) and a set of second supports frame (52), the second support frame (52) is located under the T-shaped top plate (51), and the two are set in reverse, one end of the second support frame (52) is connected to the T-shaped top plate (51) Connect, and the other end is connected with the lug plate (23).
The stable bridge tower pier based on complex pier beams according to claim 7, characterized in that: it also includes a group of bridge towers (9), and the bridge towers (9) are arranged above the pier beam consolidation section (1) , and a connecting beam (10) is arranged between the two bridge towers (9).
The stable bridge tower pier based on complex pier beams according to claim 2, characterized in that: a group of middle segment diaphragms (17) are arranged on both sides of the middle web (12), and the middle segment There are inserts between the diaphragms (17) and between the middle partition diaphragm (17) and the middle diaphragm (13) and between the middle diaphragm (13) and the port diaphragm (15). Make up the clapboard (18).