Connection Structure for Bridge Decorative Structures and its Construction Method

Abstract

This invention discloses a closure segment connection structure for bridge decorative structures and its construction method. The closure segment connection structure includes an anchoring connection part and a concrete structure part. The anchoring connection part connects a first decorative structure and a second decorative structure and is fully integrated with the concrete structure part, providing temporary anchoring during construction. The concrete structure part is formed between the two decorative structures by pouring concrete, and is fully integrated with the anchoring connection part, forming an integral part with the two decorative structures. This invention improves the installation accuracy of the decorative structure, reduces the construction difficulty of the closure segment, and can be widely applied in bridge ancillary projects.

Description

Technical Field

[0001] This invention relates to the field of bridge ancillary facilities technology, and in particular to a closure section connection structure for bridge decorative structures and its construction method. Background Technology

[0002] To balance aesthetics and cost-effectiveness, many bridges incorporate decorative structures such as arches and towers. These components are typically non-load-bearing steel members. This structural form not only meets aesthetic requirements but is also inexpensive, thus gaining widespread use.

[0003] Welding is generally used to connect decorative steel components. However, it is difficult to control the precision of on-site construction. Once installation errors occur, they are difficult to correct. As the number of installation segments increases, the errors accumulate, making it difficult to close the components. Summary of the Invention

[0004] Based on this, according to one embodiment of the present invention, the purpose is to provide a closure section connection structure for bridge decorative structures and its construction method. First, the two decorative structures are connected together by an anchoring connection to complete temporary anchoring; then, the steel reinforcement frame and outer plate are fixed and concrete is poured to form a concrete structure, which is then integrated with the two decorative structures to achieve connection. This improves the installation accuracy of the decorative structure and reduces the construction difficulty of the closure section, and can be widely applied in bridge ancillary projects.

[0005] The above objective can be achieved through the following technical solutions:

[0006] According to one aspect of the present invention, a closure section connection structure for a bridge decorative structure is provided, comprising an anchoring connection portion and a concrete structure portion; wherein, the anchoring connection portion is used to connect a first decorative structure and a second decorative structure to complete temporary anchoring, comprising: a first anchoring component, a second anchoring component, and a third anchoring component; wherein, one end of the first anchoring component is fixed at the end of the first decorative structure, one end of the second anchoring component is fixed at the end of the second decorative structure, and the other end of the first anchoring component is connected and fixed to the other end of the second anchoring component through the third anchoring component; the concrete structure portion is formed between the two decorative structures by pouring concrete, and the anchoring connection portion is embedded therein, so that the anchoring connection portion and the concrete structure portion are fully combined to complete the connection of the two decorative structures, comprising: a steel reinforcement frame and an outer cladding plate fixed at both ends to the ends of the two decorative structures respectively, wherein the outer cladding plate has pouring holes.

[0007] Optionally, both the first and second anchoring components include: an end plate, multiple anchor bolts, and multiple nuts; the end plate is provided with multiple anchor bolt holes arranged in a ring, one end of the anchor bolt passes through the anchor bolt hole and is fixed by the nut, and the end plate is fixed at the end of the corresponding decorative structure.

[0008] Optionally, the third anchoring component includes a connecting plate and a plurality of nuts, wherein the connecting plate has a plurality of connecting holes arranged in a ring; the other end of the anchor bolt in the two anchoring components passes through each connecting hole on the connecting plate alternately and is fixed on both sides of the connecting plate by the nuts respectively.

[0009] Optionally, the ends of both decorative structures are steel components. When the end partition is fixed at the end of the corresponding decorative structure, the end partition and the end of the corresponding decorative structure form a groove structure.

[0010] Optionally, the inner wall of the tank structure is provided with a reinforcing component, and the reinforcing component is fixed to the inner wall of the tank structure and the end partition respectively.

[0011] Optionally, the reinforcement component includes: multiple stiffening steel plates and perforated reinforcing bars; wherein, the multiple stiffening steel plates are spaced apart along the inner wall of the trough structure, and the stiffening steel plates are respectively fixed to the inner wall of the trough structure and the end partition; each stiffening steel plate has a hole, and the perforated reinforcing bars pass through the holes of each stiffening steel plate in sequence to form a ring and surround the outer periphery of multiple anchor bolts.

[0012] Optionally, the reinforcement assembly further includes multiple shear studs, which are arranged in multiple rings along the inner wall of the trench structure, and the plane of each ring of shear studs is not on the same horizontal plane as the perforated steel bars.

[0013] Optionally, at least two stiffening steel plates are arranged between two adjacent bolt holes on the end partition.

[0014] Optionally, the connecting holes on the connecting plate are evenly distributed, and their number is the sum of the number of anchor bolt holes on the two end partitions.

[0015] Optionally, all three anchoring components also include a perforated steel pad.

[0016] Optionally, the reinforcing steel cage includes: multiple longitudinal connecting steel bars and multiple stirrups arranged around it; wherein, the two ends of each longitudinal connecting steel bar are respectively welded to the inner wall of the trough structure of the two decorative structures, and the multiple longitudinal connecting steel bars are spaced apart along the inner wall of the trough structure; the outer cladding plate is a steel plate, the two ends of which are respectively welded and fixed to the trough structure wall of the two decorative structures, so that the outer cladding plate and the two decorative structures form a flat surface.

[0017] According to another aspect of the present invention, the present invention provides a construction method for a closure section connection structure for a bridge decorative structure, comprising: using an anchoring connection part to connect a first decorative structure and a second decorative structure to complete temporary anchoring; fixing a steel reinforcement frame, installing an outer cladding plate, and pouring concrete into the outer cladding plate through a pouring hole to form a concrete structural part between the two decorative structures, so that the anchoring connection part is fully integrated with the concrete structural part and forms an integral part with the two decorative structures.

[0018] Optionally, during the process of connecting the first decorative structure and the second decorative structure using the anchoring connection, a groove structure is formed at the end of the two decorative structures, and a reinforcing component is provided on the inner wall of the groove structure, with the reinforcing component surrounding the anchoring connection.

[0019] Beneficial effects: According to one embodiment of the present invention, two decorative structures are first connected together by an anchoring connection to complete temporary anchoring; then the steel reinforcement frame and outer cladding are fixed and concrete is poured to form a concrete structure, and the anchoring connection is fully integrated with the concrete structure and forms an integral part with the two decorative structures, thereby achieving connection. This improves the connection strength of the decorative structures, improves the installation accuracy of the decorative structures, and reduces the construction difficulty of the closure section. It can be used for the connection of closure sections of decorative steel components of various shapes and can be promoted and applied in bridge ancillary projects. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the closure section connection structure for bridge decorative structure in one embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure at the end of the decorative structure in one embodiment of the present invention;

[0022] Figure 3 This is a top view of the end of the decorative structure in one embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the connection of the anchoring connection in one embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the connection at the third anchoring component in one embodiment of the present invention;

[0025] Figure 6 This is a schematic flowchart of a construction method for a closure section connection structure of a bridge decorative structure according to an embodiment of the present invention. Detailed Implementation

[0026] The technical solution of the present invention will be clearly and completely described below with reference to embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] This invention provides a closure section connection structure for bridge decorative structures, comprising an anchoring connection and a concrete structural section. During construction, a first and second decorative structure are first temporarily anchored via the anchoring connection; then, concrete is poured between the two decorative structures to form the concrete structural section, ensuring the anchoring connection is fully integrated with the concrete structural section and forms a unified whole with the two decorative structures, thus completing the connection between the two decorative structures. By using the anchoring connection for pre-temporary anchoring at the closure section, and then cooperating with the concrete structural section to complete the connection between the two decorative structures, the installation accuracy of the decorative structure is improved, the construction difficulty of the closure section is reduced, and it is suitable for closure section connections of decorative steel structures of various shapes, and can be widely applied in bridge ancillary projects.

[0028] Figures 1 to 5 This illustration schematically shows the structure of the components of the closure section connection structure for a bridge decorative structure in one embodiment. The following section describes specific embodiments and... Figures 1 to 5 Further explanation is provided regarding the closure section connection structure used in the bridge decorative structure.

[0029] like Figure 1 and Figure 4 The two decorative structures are connected at their ends to form a single unit via a merging section; in this embodiment, both decorative structures are steel components at their ends. The two decorative structures are first pre-anchored together via an anchoring connection. After the subsequent pouring of concrete 11, this anchoring connection is anchored within the concrete structure, fully integrating with it. The anchoring connection includes a first anchoring component, a second anchoring component, and a third anchoring component. One end of the first anchoring component is fixed to the end of decorative steel component A (the first decorative structure), one end of the second anchoring component is fixed to the end of decorative steel component B (the second decorative component), and the other ends of the first and second anchoring components are connected and fixed via the third anchoring component. Pre-anchoring is achieved through the cooperation of these three sets of anchoring components, resulting in convenient installation and high installation accuracy.

[0030] Furthermore, such as Figure 3 and Figure 4As shown, both the first and second anchoring components include an end diaphragm 1, multiple anchor bolts 3, and multiple nuts 7. In this embodiment, the end diaphragm 1 is specifically a steel plate with multiple anchor bolt holes arranged in a ring shape, such as... Figure 3 As shown, four anchor bolt holes are opened near the edge of the end plate 1 and are distributed in a ring. During construction, one end of the anchor bolt 3 is first passed through the anchor bolt hole and fixed by the nut 7. Then the end plate 1 is fixed at the end of the corresponding decorative structure.

[0031] like Figure 4 As shown, the third anchoring component includes a connecting plate 8 and multiple nuts 7. The connecting plate 8 is specifically a steel plate with multiple connecting holes arranged in a ring. The number of connecting holes is not less than the sum of the number of anchor bolt holes on the end partitions, for example, eight, to ensure uniform stress on the entire anchoring connection after subsequent alternating installation, thus improving installation accuracy. During construction, the other ends of the anchor bolts 3 in the two anchoring components are sequentially and alternately passed through the connecting holes on the connecting plate 8 and fixed on both sides of the connecting plate 8 with the nuts 7, i.e. Figure 5 As shown, four anchor bolts 3 of the first anchoring component are fixed at the connecting holes, and another four anchor bolts 3 of the second anchoring component are fixed at the connecting holes. These are installed and fixed at intervals to ensure even stress distribution and improve installation accuracy. The pre-anchored connection of the anchoring joint using the above structure improves the robustness of the closure section connection structure, resulting in high installation accuracy and low construction difficulty.

[0032] In addition, perforated steel pads 2 are provided between the end partition 1 and the nut 7, and between the connecting plate 8 and the nut 7, to make the installation more secure and avoid affecting the installation accuracy.

[0033] In a preferred embodiment, the end partition 1 of the two anchoring components is welded and fixed to the end of the corresponding decorative structure, such as... Figure 2 As shown, the end partition 1 and the end of the corresponding decorative structure form a groove structure. In addition, a reinforcing component is provided on the inner wall of the groove structure to facilitate the connection between the steel component and the concrete and improve the stability of the overall structure; moreover, by providing this reinforcing component, the multiple anchor bolts 3 in the anchoring component can be limited.

[0034] like Figure 2 and Figure 3As shown, the reinforcing components may include multiple stiffening steel plates 4, multiple perforated reinforcing bars 6, and multiple shear studs 5. The multiple shear studs 5 are arranged in multiple rings along the inner wall of the trench structure, and the plane of each ring of shear studs 5 is not on the same horizontal plane as the perforated reinforcing bars 6. The shear studs 5 improve the connection strength between the cast concrete 11 and the first and second decorative structures. Multiple stiffening steel plates 4 are spaced apart along the inner wall of the trench structure, and are vertically welded and fixed to the inner wall and end partition 1 respectively, further strengthening the connection strength between the end partition 1 and the decorative structure, and providing installation space for the perforated reinforcing bars 6. Holes are drilled in each stiffening steel plate 4, with the holes at the same height. The perforated reinforcing bars 6 pass through the holes of each stiffening steel plate 4 in sequence to form a ring, further improving the overall integrity of the connection between the cast concrete 11 and the first and second decorative structures.

[0035] In addition, such as Figure 3 As shown, at least multiple stiffening steel plates 4 can be arranged between two adjacent bolt holes to make the connection between the end partition 1 and the first and second decorative structures more secure. At the same time, multiple rows of holes can be set on the stiffening steel plates 4, and multiple perforated steel bars 6 can be used for perforation, which further improves the overall integrity of the connection between the cast concrete 11 and the first and second decorative structures.

[0036] like Figure 1 As shown, the concrete structure is formed between the two decorative structures by pouring concrete 11, and the anchoring connection is anchored within it, thus completing the connection between the two decorative structures. This concrete structure includes a reinforcing steel skeleton and an outer cladding plate. The reinforcing steel skeleton is formed by multiple longitudinal connecting steel bars 9 and multiple stirrups 10 spaced around it. Both ends of each longitudinal connecting steel bar 9 are welded to the inner wall of the trough structure of the two decorative structures, and the multiple longitudinal connecting steel bars 9 are spaced along the inner wall of the trough structure. During construction, one end of some longitudinal connecting steel bars 9 is welded to decorative structural steel member A, and one end of another portion of longitudinal connecting steel bars 9 is welded to decorative structural steel member B. After temporary anchoring is completed, the other ends of each longitudinal connection are fixed to another decorative structural steel member, so that the two portions of longitudinal connecting steel bars 9 are alternately arranged to form the entire reinforcing steel skeleton. The outer cladding plate is specifically an outer steel plate 12 with pouring holes, and both ends of the outer cladding plate are welded and fixed to decorative structural steel members A and B, respectively. The specific welding position is not limited. Preferably, the outer panel and the two decorative structures form a flat and smooth surface to ensure that the overall shape of the decorative structure is uniform.

[0037] Figure 6The illustration schematically depicts the construction process of a closure segment connection structure for a bridge decorative structure according to an embodiment of the present invention. The construction method first uses an anchoring connection to temporarily anchor the first and second decorative structures; then, it fixes the reinforcing steel frame, installs the outer steel plate 12, and pours concrete 11 into the outer steel plate 12 through pouring holes, forming a concrete structural section between the two decorative structures, thus becoming an integral part of the two decorative structures. Specifically, it includes the following steps:

[0038] Step S10: Connect anchoring components and longitudinal connecting steel bars 9 to the two decorative structural steel components respectively. This step belongs to the construction preparation stage, that is, preparing various materials required and processing them into shape. Specifically, 1) Pass one end of the anchor bolt 3 through the end partition 1 and fix it with the perforated steel pad 2 and nut 7; weld the end partition 1 to the inner wall of the decorative structural steel component near the end, at which point the ends of the two decorative structures form a groove structure. 2) After the stiffening steel plate 4 is perforated, insert the annular perforated steel bar 6, and then weld the side and bottom edges of the stiffening steel plate 4 vertically to the inner wall of the decorative structural steel component and the end partition 1; and weld shear nails 5 to the inner wall of the decorative structural steel component. The anchoring components of decorative structural steel components A and B are installed in the same way. 3) Alternately weld one end of the longitudinal connecting steel bar 9 to the inner wall of decorative structural steel components A and B to improve the stability of the subsequently formed steel reinforcement skeleton.

[0039] Step S20: Hoist temporary anchoring and fabricate outer steel plate 12. Hoist the last two decorative structural steel components A and B, which were fabricated in the previous step, into place and weld them to their adjacent sections. 1) Pass the other end of the anchor bolt 3 on decorative structural steel component A through the perforated steel pad 2 and the first connecting hole, and fix it to the first side of the connecting plate 8 with nut 7. Pass the other end of the anchor bolt 3 on decorative structural steel component B through the perforated steel pad 2 and the second connecting hole, and fix it to the second side of the connecting plate 8 with nut 7. In this way, the anchor bolts 3 on decorative structural steel components A and B are alternately fixed to both sides of the connecting plate 8 to complete the temporary anchoring. 2) After measuring according to the site conditions, fabricate outer steel plate 12.

[0040] Step S30: Fix the longitudinal connecting steel bars 9, tie the stirrups 10, and fix the outer steel plate 12. Specifically, 1) alternately weld the unwelded ends of the longitudinal connecting steel bars 9 to the decorative structural steel components A and B to form a steel reinforcement skeleton. 2) Tie the stirrups 10 to the longitudinal connecting steel bars 9. 3) Weld the outer steel plate 12 to the decorative structural steel components A and B to form a flat surface with the decorative structural steel components A and B.

[0041] Step S40: Pour micro-expansion concrete through the pouring hole of the outer steel plate 12. By welding and fixing the reinforcing steel skeleton to the inner walls of the decorative structural steel components A and B and then pouring micro-expansion concrete, the steel components are ultimately formed as a whole.

[0042] The description of this invention is given for illustrative and descriptive purposes only and is not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A closure segment connection structure for bridge decorative structures, characterized in that, include: An anchoring connection, used to connect a first decorative structure and a second decorative structure to achieve temporary anchoring, includes: a first anchoring component, a second anchoring component, and a third anchoring component; wherein, one end of the first anchoring component is fixed at the end of the first decorative structure, one end of the second anchoring component is fixed at the end of the second decorative structure, and the other ends of the first and second anchoring components are connected and fixed through the third anchoring component; wherein, both the first and second anchoring components include: an end plate, multiple anchor bolts, and multiple nuts; the end plate has multiple anchor bolt holes arranged in a ring, one end of the anchor bolt passes through the anchor bolt hole and is fixed by the nut, and the end plate is fixed at the end of the corresponding decorative structure; the third anchoring component includes: a connecting plate and multiple nuts, the connecting plate has multiple connecting holes arranged in a ring; the other ends of the anchor bolts in the two anchoring components alternately pass through the connecting holes on the connecting plate and are fixed on both sides of the connecting plate by nuts respectively; The concrete structure is formed between the two decorative structures by pouring concrete, and the anchoring connection is embedded in it, so that the anchoring connection is fully integrated with the concrete structure to complete the connection between the two decorative structures. It includes: a steel skeleton and an outer plate that are fixed at both ends to the ends of the two decorative structures respectively, and the outer plate has a pouring hole.

2. The closure segment connection structure for bridge decorative structures according to claim 1, characterized in that, Both decorative structures have steel components at their ends. When the end partition is fixed at the end of the corresponding decorative structure, the end partition and the end of the corresponding decorative structure form a groove structure.

3. The closure segment connection structure for bridge decorative structures according to claim 2, characterized in that, The inner wall of the tank structure is provided with a reinforcing component, and the reinforcing component is fixed to the inner wall of the tank structure and the end partition respectively.

4. The closure segment connection structure for bridge decorative structures according to claim 3, characterized in that, The reinforcement components include: multiple stiffening steel plates and perforated steel bars; wherein, the multiple stiffening steel plates are spaced apart along the inner wall of the trough structure, and the stiffening steel plates are respectively fixed to the inner wall of the trough structure and the end partition; each stiffening steel plate has a hole, and the perforated steel bars pass through the holes of each stiffening steel plate in sequence to form a ring, and surround the outer periphery of multiple anchor bolts.

5. The closure segment connection structure for bridge decorative structures according to claim 4, characterized in that, The reinforcement assembly also includes multiple shear studs, which are arranged in multiple rings along the inner wall of the trench structure, and the plane of each ring of shear studs is not on the same horizontal plane as the perforated steel bars.

6. The closure segment connection structure for bridge decorative structures according to claim 4, characterized in that, On the end partition, at least two stiffening steel plates are arranged between two adjacent bolt holes; the connecting holes on the connecting plate are evenly distributed, and their number is the sum of the number of anchor bolt holes on the end partitions.

7. The closure section connection structure for bridge decorative structures according to claim 2, characterized in that, The steel reinforcement cage includes: multiple longitudinal connecting steel bars and multiple stirrups arranged around it; Each longitudinal connecting steel bar is welded to the inner wall of the two decorative structures at both ends, and multiple longitudinal connecting steel bars are spaced apart along the inner wall of the trough structure. The outer cladding plate is a steel plate, with both ends welded and fixed to the structural walls of the two decorative structure grooves, so that the outer cladding plate and the two decorative structures form a flat surface.

8. A construction method for a closure segment connection structure for bridge decorative structures according to any one of claims 1-7, characterized in that, include: The first and second decorative structures are temporarily anchored by using an anchoring connection. The steel reinforcement frame is fixed, the outer cladding plate is installed, and concrete is poured into the outer cladding plate through the pouring hole to form a concrete structural part between the two decorative structures, so that the anchoring connection part is fully integrated with the concrete structural part and forms an integral part with the two decorative structures.

9. The construction method for the closure section connection structure of a bridge decorative structure according to claim 8, characterized in that, During the process of connecting the first decorative structure and the second decorative structure using the anchoring connection, a groove structure is formed at the end of the two decorative structures. A reinforcing component is provided on the inner wall of the groove structure, and the reinforcing component is arranged around the anchoring connection.

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