A co-construction pier for bridges and fully enclosed sound barriers
Patent Information
- Application Number
- CN202521971655.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-09-15
AI Technical Summary
[0005]本实用新型的目的是提供一种用于桥梁与全封闭声屏障共建的共建墩，既解决了桥梁和声屏障同时在该位置受力的问题，又解决了桥梁(砼结构物)和全封闭声屏障(钢结构)变形不一致的问题
[0018] Compared to the traditional method of constructing bridge piers and sound barrier foundations separately, this utility model's shared pier design allows the expanded bridge and the fully enclosed sound barrier to share a single pier cap and two pile foundations. This reduces the need for two pile foundations, decreases the land area required, lowers costs, and improves construction progress. Furthermore, the shared pile foundations and separate column use allow the bridge columns and the fully enclosed sound barrier steel columns to bear loads independently, reducing deformation interference and solving the problem of inconsistent deformation between concrete and steel structures. This provides a novel solution for similar highway reconstruction and expansion projects.
Smart Images
Figure CN224704980U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge expansion and sound barrier installation technology, and in particular to a co-construction pier for bridges and fully enclosed sound barriers. Background Technology
[0002] Currently, with the rapid development of the social economy, the traffic volume of highways built in the early stages in China has reached saturation, with service levels mainly at level four or five, and traffic congestion has become the norm. Low service levels not only affect normal vehicle passage but also contribute to a high accident rate. The contradiction between the demand for quality travel and limited capacity is prominent, leading to an increasing number of highway reconstruction and expansion projects. Simultaneously, residential buildings, schools, and other civilian structures along the proposed highway reconstruction and expansion sites are being constructed intensively alongside the highways as their operational years increase. These structures are sensitive to noise and require fully enclosed sound barriers. Furthermore, land acquisition and demolition are difficult for highway reconstruction and expansion in urban areas, making it impossible to adopt a side-by-side expansion approach. Also, underground pipelines and subway facilities cannot be expanded through tunnels, often necessitating bridge overpass expansion.
[0003] Therefore, the expansion of urban expressways in China requires the simultaneous installation of bridge pile foundations and fully enclosed sound barrier foundations in the narrow space under the bridge median. Due to limited space, each bridge pile foundation and the fully enclosed sound barrier foundation requires two separate pile foundations and occupies a significant area. Consequently, it is difficult to separately install the bridge pile foundations and the fully enclosed sound barrier foundations in narrow areas with limited space, increasing construction difficulty and thus affecting the expansion.
[0004] Therefore, in order to resolve this prominent contradiction, it is urgent to propose a new type of co-constructed pier that can be used simultaneously as a bridge and a fully enclosed sound barrier. Utility Model Content
[0005] The purpose of this utility model is to provide a co-construction pier for bridges and fully enclosed sound barriers, which solves the problem of the bridge and the sound barrier being subjected to forces at the same location, and also solves the problem of inconsistent deformation between the bridge (concrete structure) and the fully enclosed sound barrier (steel structure).
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A co-construction pier for bridges and fully enclosed sound barriers includes a co-construction pier platform located at the median strip under the bridge. Two pile foundations are symmetrically arranged at the bottom of the co-construction pier platform. The length direction of the co-construction pier platform is distributed along the longitudinal direction of the bridge. A bridge pier column for connecting the bridge column is provided in the middle of the top of the co-construction pier platform. An anchorage part for connecting the steel column of the fully enclosed sound barrier is provided at both ends of the top of the co-construction pier platform along the length direction.
[0008] Furthermore, the two anchorages and the bridge piers are distributed along the longitudinal direction of the bridge.
[0009] Furthermore, the co-constructed foundation includes an internal foundation reinforcement cage and a C40 concrete layer that encloses the foundation reinforcement cage.
[0010] Furthermore, the bottom of the co-constructed foundation is provided with a foundation pad layer, which is made of C20 concrete.
[0011] Furthermore, the bridge pier includes several pre-embedded reinforcing bars connected to the pier cap steel cage, and a C20 concrete layer that wraps around the pre-embedded reinforcing bars.
[0012] Furthermore, the pile foundation includes an internal pile foundation reinforcement cage and a C35 concrete layer poured to enclose the pile foundation reinforcement cage.
[0013] Furthermore, the co-constructed pier is rectangular, the bridge pier has a square cross-section with rounded corners, and the pile foundation has a circular cross-section.
[0014] Furthermore, the anchoring part includes several pre-embedded bolts connected to the co-construction pier. The bottom of the fully enclosed sound barrier steel column is provided with a fixing plate for assembly and connection with the pre-embedded bolts. The pre-embedded bolts are equipped with nuts for locking the fixing plate. A concrete sealing layer is poured and filled between the fixing plate and the top surface of the co-construction pier.
[0015] Furthermore, the co-constructed foundation has a recess on its top surface located between several pre-embedded bolts, and the bottom of the fully enclosed sound barrier steel column has a shear key extending into the recess, and the concrete sealing layer fills and covers the recess.
[0016] Furthermore, the sidewalls of the fully enclosed sound barrier steel columns are provided with several reinforcing ribs connected to the fixing plate.
[0017] Compared with the prior art, this utility model provides a co-construction pier for bridges and fully enclosed sound barriers, which has the following beneficial effects:
[0018] Compared to the traditional method of constructing bridge piers and sound barrier foundations separately, this utility model's shared pier design allows the expanded bridge and the fully enclosed sound barrier to share a single pier cap and two pile foundations. This reduces the need for two pile foundations, decreases the land area required, lowers costs, and improves construction progress. Furthermore, the shared pile foundations and separate column use allow the bridge columns and the fully enclosed sound barrier steel columns to bear loads independently, reducing deformation interference and solving the problem of inconsistent deformation between concrete and steel structures. This provides a novel solution for similar highway reconstruction and expansion projects. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0022] Figure 3 A schematic diagram of the bottom structure of the steel column of a fully enclosed sound barrier;
[0023] Figure 4 This is a schematic diagram of a half-section of the present invention;
[0024] Figure 5 This is a schematic diagram showing the connection between the steel columns of the fully enclosed sound barrier and the shared foundation.
[0025] Attached reference numerals: 1. Shared foundation; 11. Foundation reinforcement cage; 12. C40 concrete layer; 13. Recess; 2. Pile foundation; 21. Pile foundation reinforcement cage; 22. C35 concrete layer; 3. Bridge pier; 31. Pier embedded reinforcement; 32. C20 concrete layer; 4. Anchorage; 41. Embedded bolt; 42. Nut; 43. Concrete sealing layer; 5. Foundation pad; 6. Bridge column; 7. Fully enclosed sound barrier steel column; 71. Fixing plate; 72. Shear key; 73. Reinforcing rib plate. Detailed Implementation
[0026] The technical solution of this utility model will be clearly and completely described below through detailed embodiments and in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0027] Please refer to Figures 1-5 This embodiment provides a co-construction pier for the joint construction of a bridge and a fully enclosed sound barrier, including a co-construction pier 1 arranged in the median strip at the bottom of the bridge. Two pile foundations 2 are symmetrically arranged at the bottom of the co-construction pier 1. The length direction of the co-construction pier 1 is distributed along the longitudinal direction of the bridge. A bridge pier column 3 for connecting the bridge column 6 is arranged in the middle of the top of the co-construction pier 1. An anchoring part 4 for connecting the steel column 7 of the fully enclosed sound barrier is arranged at both ends of the top of the co-construction pier 1 along the length direction.
[0028] Compared to the traditional method of constructing bridge piers and sound barrier foundations separately, this shared pier construction allows the expanded bridge and the fully enclosed sound barrier to share a single pier cap and two pile foundations. This reduces the need for two pile foundations, decreases the land area required, lowers costs, and accelerates construction. Furthermore, the shared pile foundations and separate column construction allow the bridge columns and the fully enclosed sound barrier steel columns to bear loads independently, reducing deformation interference and solving the problem of inconsistent deformation between concrete and steel structures. This provides a novel solution for similar highway reconstruction and expansion projects.
[0029] In a preferred embodiment, the two anchorage parts 4 and the bridge pier 3 are distributed along the longitudinal direction of the bridge and arranged in a straight line.
[0030] refer to Figure 4 In some specific embodiments, the co-constructed pier cap 1 includes an internal pier cap steel cage 11 and a C40 concrete layer 12 that is poured to enclose the pier cap steel cage 11; the bridge pier column 3 includes several pier column embedded steel bars 31 connected to the pier cap steel cage 11 and a C20 concrete layer 32 that is poured to enclose the pier column embedded steel bars 31; and the pile foundation 2 includes an internal pile foundation steel cage 21 and a C35 concrete layer 22 that is poured to enclose the pile foundation steel cage 21.
[0031] In some specific implementation methods, such as Figure 1 As shown, the shared foundation 1 is rectangular, the bridge pier 3 has a square cross-section with rounded corners, and the pile foundation 2 has a circular cross-section. Specifically, as an example, the shared foundation is 900cm long, 290cm wide, and 220cm high. The bridge pier is 220cm long, 180cm wide, and 130cm high. The pile foundation has a diameter of 180cm.
[0032] In some specific implementation methods, refer to Figure 1 and Figure 4 The bottom of the pier 1 is provided with a pier cushion layer 5, which is made of C20 concrete.
[0033] In some specific implementation methods, refer to Figures 1-5The anchoring part 4 includes several embedded bolts 41 connected to the co-construction foundation 1. The bottom of the fully enclosed sound barrier steel column 7 is provided with a fixing plate 71 for assembly and connection with the embedded bolts 41. Nuts 42 are installed on the embedded bolts 41 for locking the fixing plate 71. After the fully enclosed sound barrier steel column is locked and fixed to the embedded bolts, a filling concrete sealing layer 43 is poured between the fixing plate 71 and the top surface of the co-construction foundation 1, serving a protective and reinforcing function. Specifically, as an example, the fixing plate 71 is a square steel plate, welded and fixed to the bottom of the fully enclosed sound barrier steel column 7. Four embedded bolts 41 are provided at each anchoring part 4, corresponding to the four corners of the fixing plate 71. The concrete sealing layer 43 uses C40 non-shrinkage fine aggregate concrete or iron filings mortar.
[0034] In some specific implementation methods, such as Figure 3 and Figure 5 As shown, the co-construction foundation 1 has recesses 13 on its top surface located between each pre-embedded bolt 41. The bottom of the fully enclosed sound barrier steel column 7 has shear keys 72 extending into the recesses 13. After the fully enclosed sound barrier steel column 7 is installed, concrete is poured and the concrete sealing layer 43 fills and covers the recesses 13. In this way, by adding shear keys, the support stability of the fully enclosed sound barrier steel column is improved.
[0035] refer to Figure 3 As an improved implementation, the sidewalls of the fully enclosed sound barrier steel column 7 are further provided with several reinforcing ribs 73 connected to the fixing plate 71, thereby further increasing its strength and preventing deformation. Specifically, as an example, there are four reinforcing ribs 73, which are distributed in a circumferential array on the sidewalls of the fully enclosed sound barrier steel column 7.
[0036] The above embodiments are merely illustrative of the concept and technical solution of this utility model, and are not intended to limit this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A co-construction pier for bridges and fully enclosed sound barriers, comprising a co-construction pier platform arranged at the median strip under the bridge, wherein two pile foundations are symmetrically arranged at the bottom of the co-construction pier platform, characterized in that, The co-constructed piers are distributed along the longitudinal direction of the bridge. A bridge pier is provided at the middle of the top of the co-constructed pier for connecting the bridge column. An anchorage is provided at each end of the top of the co-constructed pier along the longitudinal direction for connecting the steel column of the fully enclosed sound barrier.
2. The co-construction pier for bridges and fully enclosed sound barriers as described in claim 1, characterized in that, The two anchorages and the bridge piers are distributed along the longitudinal direction of the bridge.
3. The co-construction pier for bridges and fully enclosed sound barriers as described in claim 1, characterized in that, The co-constructed foundation includes an internal foundation reinforcement cage and a C40 concrete layer that encloses the foundation reinforcement cage.
4. The co-construction pier for bridges and fully enclosed sound barriers as described in claim 3, characterized in that, The bottom of the co-constructed foundation is provided with a foundation pad layer, which is made of C20 concrete.
5. The co-construction pier for bridges and fully enclosed sound barriers as described in claim 1, characterized in that, The bridge piers include several pre-embedded reinforcing bars connected to the pier cap steel cage, and a C20 concrete layer that wraps around the pre-embedded reinforcing bars.
6. The co-construction pier for bridges and fully enclosed sound barriers as described in claim 1, characterized in that, The pile foundation includes an internal pile foundation reinforcement cage and a C35 concrete layer that encloses the pile foundation reinforcement cage.
7. The co-construction pier for bridges and fully enclosed sound barriers as described in claim 1, characterized in that, The co-constructed pier is rectangular, the bridge pier has a square cross-section with rounded corners, and the pile foundation has a circular cross-section.
8. The co-construction pier for bridges and fully enclosed sound barriers as described in claim 1, characterized in that, The anchoring part includes several pre-embedded bolts that connect to the co-construction pier. The bottom of the fully enclosed sound barrier steel column is provided with a fixing plate for assembly and connection with the pre-embedded bolts. The pre-embedded bolts are fitted with nuts for locking the fixing plate. A concrete sealing layer is poured and filled between the fixing plate and the top surface of the co-construction pier.
9. The co-construction pier for bridges and fully enclosed sound barriers as described in claim 8, characterized in that, The co-constructed foundation has a recess on its top surface located between several pre-embedded bolts. The bottom of the fully enclosed sound barrier steel column has a shear key extending into the recess, and the concrete sealing layer fills and covers the recess.
10. The co-construction pier for bridges and fully enclosed sound barriers as described in claim 8, characterized in that, The side walls of the fully enclosed sound barrier steel columns are provided with several reinforcing ribs connected to the fixing plate.