Overturn-preventing hoop buttress structure of single-row steel pipe support

Abstract

The invention relates to a single-row steel pipe support anti-overturning hoop buttress structure, which belongs to the technical field of bridge engineering, and comprises a plurality of cylindrical piers distributed along the length direction of a bridge; the multiple steel pipe stand columns are distributed in the length direction of the bridge and located on one side of the cylindrical pier; the first reinforcing assembly is connected between the cylindrical pier and the steel pipe stand column; the second reinforcing assemblies are connected between the adjacent steel pipe stand columns. Under the condition that the completed cylindrical pier is utilized, in order to avoid damage to a finished product, the first reinforcing assembly and the second assembly are installed, stability can be improved, investment of the double-steel-pipe bent frame can be reduced, cost is reduced, and meanwhile damage to the structure of the finished product is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of bridge engineering, and in particular to a single-row steel pipe support anti-overturning hoop supporting wall structure. Background Art

[0002] Cast-in-place construction of bridge superstructure is a common bridge construction method. It refers to the construction of the bridge superstructure in sections. First, the formwork is erected between the piers or beam piers, then the steel bars are tied to the formwork, and finally concrete is poured. After the concrete solidifies, the formwork is removed to complete the construction of the entire bridge superstructure.

[0003] It should also be noted that during the cast-in-place construction of the bridge superstructure, a scaffolding needs to be set up. The scaffolding should be able to withstand various loads during the construction process and ensure construction safety. Currently, double or multiple rows of pipe pile columns are mostly used as scaffolding.

[0004] Due to the increasingly fierce market competition, the profit margins of construction projects have been limited to a certain extent. Therefore, the cost and construction period of using double or multiple rows of pipe pile columns as supports are high. Summary of the Invention

[0005] The embodiment of the present application provides a single-row steel pipe support anti-overturning hoop supporting wall structure to solve the problem in the related art that the cost and construction period of using double or multiple rows of pipe pile columns as supports are high.

[0006] An embodiment of the present application provides a single-row steel pipe support anti-overturning hoop buttress structure, including: a cylindrical pier, which is distributed in multiple numbers along the length direction of the bridge; a steel pipe column, which is distributed in multiple numbers along the length direction of the bridge and is located on one side of the cylindrical pier; a first reinforcement component, which is connected between the cylindrical pier and the steel pipe column; and a second reinforcement component, which is connected between adjacent steel pipe columns.

[0007] By adopting the above technical solution: using the already built cylindrical pier as an auxiliary support, then setting up a steel pipe column on one side of the cylindrical pier, and using a first reinforcement component to connect the cylindrical pier and the steel pipe column, and using a second reinforcement component to connect multiple steel pipe columns, thereby effectively forming a support structure between the cylindrical pier and the steel pipe column to support the upper cast-in-place bridge structure, this method can eliminate the investment in setting up double or multiple rows of pipe pile columns, reduce the amount of temporary support engineering, meet the safety and stability requirements of the single row of steel pipe column structure, and reduce costs.

[0008] In some embodiments, the first reinforcement assembly includes: a hoop installed on the cylindrical pier; and a wall support rod, one end of which is fixed to the hoop and the other end is connected to the steel pipe column.

[0009] By adopting the above technical solution: the cylindrical pier and the steel pipe column are effectively connected by using a hoop and a buttress rod, the hoop and the buttress rod are convenient to connect, and the structure is stable.

[0010] In some embodiments, a corbel is provided on the clamp, and the wall supporting rod is fixed on the corbel.

[0011] By adopting the above technical solution: by arranging the corbel on the hoop, the construction process can be simplified and the construction efficiency can be improved. The corbel, as a part of the hoop, can form a stable supporting structure. This structure can provide a reliable support point for the wall supporting rod, and can disperse the force borne by the hoop to a larger area, reduce local stress concentration, improve the bearing capacity of the overall structure, and ensure stability and safety during the construction process.

[0012] In some embodiments, the clamp includes: two semicircular rings, which are arranged to embrace the cylindrical pier; a stiffening flange plate connected to both ends of the semicircular ring; and a connecting bolt connected to the two semicircular rings, between the two stiffening flange plates on the same side.

[0013] By adopting the above technical solution: dividing the clamp into a semicircular ring and a stiffening flange plate and connecting bolts, the clamp is easy to install, has a strong bearing capacity, and the clamp and the cylindrical pier can be tightly connected.

[0014] In some embodiments, the corbel is fixed in the middle of the semicircular ring.

[0015] By adopting the above technical solution: fixing the corbel in the middle of the semicircular ring, the load on the semicircular ring is evenly distributed, the occurrence of unbalanced force and offset is reduced, and the structure is reliable.

[0016] In some embodiments, the corbel includes: a horizontal plate, which is horizontally fixed in the middle of the semicircular ring, and the wall support rod is connected to the horizontal plate; a vertical stiffening plate, which is vertically fixed in the middle of the semicircular ring and connected to the horizontal plate.

[0017] By adopting the above technical solution: the horizontal plate can directly bear the vertical load from the buttress rods and effectively disperse it to the cylindrical piers, thereby reducing local stress concentration and improving the overall stability of the structure; the vertical stiffening plate can enhance the bearing capacity of the corbel in the vertical direction and prevent local damage caused by excessive load; the combined design of the horizontal plate and the vertical stiffening plate can distribute the load more reasonably, so that the corbel can maintain a good stress state when bearing the load, avoiding stress concentration and damage, and meeting the structural requirements of larger spans and higher loads.

[0018] In some embodiments, the stiffening flange plate includes: a flange plate, which is vertically fixed at both ends of the semicircular ring and has bolt holes on the flange plate; and a horizontal stiffening plate, which is horizontally fixed at both ends of the semicircular ring and connected to the flange plate.

[0019] By adopting the above technical solution: the horizontal stiffening plate can effectively disperse and bear greater pressure and torque, so that the stiffening flange plate can still maintain stable operation under high pressure, high torque and other working conditions, thereby making the connection strength of the clamp on the cylindrical pier higher and more stable to use. Therefore, the flange plate combined with the horizontal stiffening plate significantly enhances the bearing capacity of the stiffening flange plate.

[0020] In some embodiments, the two semicircular rings are located between the flange plates with a mounting gap left therebetween.

[0021] By adopting the above technical solution, the installation gap allows the two semi-circular rings to be more easily put on the cylindrical pier. This design reduces the resistance and difficulty during installation and improves work efficiency.

[0022] In some embodiments, a reinforcement plate is provided on the steel pipe column, and the buttress rod is fixed on the reinforcement plate.

[0023] By adopting the above technical solution: the reinforcement plate disperses the force borne by the steel pipe column to a larger area, reduces the occurrence of stress accumulation, and improves the bearing capacity of the steel pipe column.

[0024] In some embodiments, the second reinforcement assembly includes a connection system installed between a plurality of the steel pipe columns.

[0025] By adopting the above technical solution: using a connection system to connect multiple steel pipe columns, the stability between the steel pipe columns is effectively improved and the supporting performance is enhanced.

[0026] The beneficial effects of the technical solution provided by this application include: The embodiment of the present application provides a single-row steel pipe bracket anti-overturning hoop support wall structure, which uses the existing cylindrical piers and steel pipe columns to form a bracket structure, and then strengthens the connection between the cylindrical piers and the steel pipe columns through the first reinforcement component and the second reinforcement component, thereby improving the stability of the bracket, effectively avoiding the increase in project costs caused by setting up double rows of brackets, and will not cause damage to the finished cylindrical pier. It is quick to install and has the characteristics of reducing costs and increasing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 A side view of the overall structure provided in an embodiment of the present application; Figure 2 A front view of the overall structure provided in an embodiment of the present application; Figure 3 A schematic diagram for illustrating distribution beams, cushion beams, and longitudinal beams provided in an embodiment of the present application; Figure 4 A top view of the overall structure provided in the embodiment of the present application Figure 5 A schematic diagram illustrating the connection status of a cylindrical pier, a hoop, a wall support member, and a steel pipe column provided in an embodiment of the present application; Figure 6 A schematic diagram showing the structure of a clamp provided in an embodiment of the present application; Figure 7 A schematic diagram of the structure of a corbel provided in an embodiment of the present application; Reference numerals: 1. Cylindrical pier; 10. Formwork system; 11. Cast-in-place beam section; 2. Cap beam; 3. Steel pipe column; 31. Reinforcement plate; 32. Pile cap; 33. Connection system; 4. Hoop; 41. Semi-circular ring; 42. Stiffening flange plate; 421. Flange plate; 4211. Bolt hole; 422. Horizontal stiffening plate; 43. Connecting bolt; 44. Corbel; 441. Horizontal plate; 442. Vertical stiffening plate; 5. Wall support rod; 6. Drop block; 7. Distribution beam; 8. Pad beam; 9. Longitudinal beam. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] The embodiment of the present application provides a single-row steel pipe support anti-overturning hoop supporting wall structure, which can solve the high cost and construction period cost of using double or multiple rows of pipe pile columns as supports.

[0031] See also Figures 1 to 7 As shown, the embodiment of the present application provides a single-row steel pipe support anti-overturning hoop buttress structure, comprising: a cylindrical pier 1, a steel pipe column 3, a first reinforcement assembly, and a second reinforcement assembly. The cylindrical pier 1 is cast on site and is later used as a pier to support the bridge structure. Therefore, there are multiple cylindrical piers 1 distributed along the length of the bridge; multiple steel pipe columns 3 are also provided along the length of the bridge and are located on one side of the cylindrical pier 1. The steel pipe columns 3 serve as temporary auxiliary supports; the first reinforcement assembly is connected between the cylindrical pier 1 and the steel pipe columns 3; and the second reinforcement assembly is connected between adjacent steel pipe columns 3.

[0032] During construction, the existing cylindrical pier 1 is used as auxiliary support. Steel pipe columns 3 are then erected on one side of the cylindrical pier 1. The single-row steel pipe columns 3 are connected to the cylindrical pier 1 via a first reinforcement assembly, forming a frame structure between the cylindrical pier 1 and the steel pipe columns 3. This allows the cylindrical pier 1 and the steel pipe columns 3 to serve as supports during the cast-in-place construction of the bridge superstructure. A second reinforcement assembly further strengthens the connection between the steel pipe columns 3, significantly improving the stability of the single-row steel pipe columns 3.

[0033] However, the construction industry's traditional cost determination and control principles, based on quota pricing, have yet to fundamentally shift. Investment control at every stage of a construction project, from investment estimation to preliminary design and construction drawing design, is still based on the total project investment calculated using the quota system. Construction companies also use the quota system to determine their project budgets based on their quotations (ceiling prices). This, coupled with increasingly fierce market competition, has limited project profit margins to a certain extent. Consequently, construction companies must continuously innovate in temporary project design and construction to reduce investment, shorten construction periods, lower costs, and achieve profitability.

[0034] Therefore, in this application, the existing cylindrical pier 1 and the single-row steel pipe columns 3 are used as construction supports, which eliminates the investment in setting up double or multiple rows of pipe pile columns, reduces the amount of temporary support work, and meets the structural safety and stability requirements of the single-row steel pipe columns 3, reduces costs, and avoids damage to the finished product; the first reinforcement component and the second reinforcement component can ensure the stability of the cylindrical pier 1 and the steel pipe columns 3, improve the structural safety performance, and provide a construction technology for the subsequent bridge engineering to reduce costs and increase efficiency.

[0035] In this application, after the cylindrical pier 1 and the steel pipe column 3 are erected, the bridge superstructure constructed on top of the cylindrical pier 1 and the steel pipe column 3 specifically includes: a cap beam 2, a drop block 6, a distribution beam 7, a cushion beam 8, a longitudinal beam 9, a formwork system 10, and a cast-in-place beam section 11. The cap beam 2 is set on the top of the cylindrical pier 1, and the drop block 6 is installed on the steel pipe column 3. Then, the distribution beam 7 is installed on the drop block 6. The distribution beam 7 is arranged horizontally. The cushion beam 8 is installed on the cap beam 2. The longitudinal beam 9 is further arranged on the distribution beam 7 and the cushion beam 8. Finally, the formwork system 10 is erected on the longitudinal beam 9, and the cast-in-place beam section 11 is cast on the formwork system 10. After the construction of the cast-in-place beam section 11 is completed, the drop block 6 is used to dismantle the formwork system 10. In addition, a pile cap 32 is provided on the top of the steel pipe column 3. The pile cap 32 on the top of the steel pipe column 3 is an important component of the steel pipe pile structure and mainly serves to protect the top of the steel pipe pile, enhance structural stability, and extend service life.

[0036] In this application, the first reinforcement component provided includes: a clamp 4 and a wall support rod 5. The clamp 4 is installed on the cylindrical pier 1, and the clamp 4 is processed and manufactured in the factory according to the design drawing. At the same time, it can also be processed and manufactured in advance considering the construction requirements of the column tie beam or cap beam 2 of the cylindrical pier 1 under the bridge. In this way, it can be used as a clamp 4 for the construction of the upper tie beam or cap beam 2 of the cylindrical pier 1, and can also be used as an auxiliary structure for connecting the cylindrical pier 1 with the steel pipe column 3, eliminating the need to install embedded parts during the construction of the cylindrical pier 1, which affects the appearance quality of the pier column. In addition, the steel clamp 4 has a simple installation process, is easy to operate, and is quick to install, thereby improving construction efficiency.

[0037] One end of the buttress rod 5 is fixed to the clamp 4, and the other end is connected to the steel pipe column 3. The buttress rod 5 is installed on the wall of a building to support, fix or stabilize other structural members. Therefore, under the connecting action of the buttress rod 5, the steel pipe column 3 and the cylindrical pier 1 are effectively connected into a whole, and the structure is stable.

[0038] In the present application, a second reinforcement component is provided including a connection system 33 , which is installed between the plurality of steel pipe columns 3 , thereby increasing the connection strength between the plurality of steel pipe columns 3 and ensuring the overall stability and structural reliability of the plurality of steel pipe columns 3 .

[0039] In the present application, in order to strengthen the connection of the supporting wall rod 5, a corbel 44 is provided on the hoop 4, and the supporting wall rod 5 is fixed to the corbel 44 by welding, which can simplify the construction process and improve construction efficiency. The corbel 44 is connected to the hoop 4 in an integral manner by welding, so that the corbel 44, as a part of the hoop 4, can form a stable support structure. This structure can provide a reliable support point for the supporting wall rod 5, can disperse the force borne by the hoop 4 to a larger area, reduce local stress concentration, improve the bearing capacity of the overall structure, and ensure stability and safety during construction; it can also increase the contact area between the hoop 4 and the cylindrical pier 1, thereby increasing friction and improving the stability of the hoop 4; this is of great significance for preventing the hoop 4 from slipping or falling off due to uneven force or external force.

[0040] In this application, to further facilitate the connection between the buttress rod 5 and the steel pipe column 3, a reinforcement plate 31 is provided on the steel pipe column 3. The buttress rod 5 is fixed to the reinforcement plate 31 by welding, which facilitates installation. The reinforcement plate 31 also disperses the force borne by the steel pipe column 3 over a larger area, reducing stress accumulation and improving the load-bearing capacity of the steel pipe column 3.

[0041] In this application, the clamp 4 includes a semicircular ring 41, a stiffening flange plate 42, and a connecting bolt 43. Two semicircular rings 41 are provided, and the two semicircular rings 41 are encircled on the cylindrical pier 1; the stiffening flange plates 42 are connected to both ends of the semicircular rings 41, and the connecting bolts 43 are connected to the two semicircular rings 41, between the two stiffening flange plates 42 on the same side. After the two semicircular rings 41 are encircled on the cylindrical pier 1, the connecting bolts 43 can be tightened, which is convenient for installation.

[0042] A gap is left between the two semicircular rings 41 and the flange plate 421. The gap is between 4 and 5 centimeters wide, allowing the two semicircular rings 41 to be more easily fitted onto the cylindrical pier 1. This design reduces resistance and difficulty during installation, improving work efficiency. The gap allows the connecting bolts 43 to be more easily passed through the holes and tightened, thereby ensuring a tight connection between the clamp 4 and the cylindrical pier 1.

[0043] In the present application, in order to ensure that the bearing stress on the hoop 4 is stable, the corbel 44 is fixed in the middle of the semicircular ring 41, and the corbel 44 includes a horizontal plate 441 and a vertical stiffening plate 442. The horizontal plate 441 is fixed horizontally in the middle of the semicircular ring 41, and the buttress rod 5 is connected to the horizontal plate 441; the vertical stiffening plate 442 is fixed vertically in the middle of the semicircular ring 41 and is connected to the horizontal plate 441. The horizontal plate 441 can directly bear the vertical load from the buttress rod 5 and effectively distribute it to the cylindrical pier 1, thereby reducing local stress concentration and improving the overall stability of the structure; the presence of the horizontal plate 441 also increases the lateral stiffness of the corbel 44, helps to resist lateral deformation, and improves the overall lateral displacement resistance of the structure. The vertical stiffening plate 442 can enhance the bearing capacity of the corbel 44 in the vertical direction and prevent local damage caused by excessive load. Therefore, the combined design of the horizontal plate 441 and the vertical stiffening plate 442 can distribute the load more reasonably, so that the corbel 44 can maintain a good stress state when bearing the load, avoid stress concentration and damage, and meet the structural requirements of larger spans and higher loads.

[0044] In the present application, the stiffening flange plate 42 includes a flange plate 421 and a horizontal stiffening plate 422. The flange plate 421 is vertically fixed at both ends of the semicircular ring 41. Bolt holes 4211 are provided on the flange plate 421, so that the connecting bolts 43 are connected to the flange plate 421 through the bolt holes 4211; the horizontal stiffening plate 422 is horizontally fixed at both ends of the semicircular ring 41 and connected to the flange plate 421. The flange plate 421 is combined with the horizontal stiffening plate 422, which significantly enhances the bearing capacity of the stiffening flange plate 42. The horizontal stiffening plate 422 can effectively disperse and bear greater pressure and torque, so that the stiffening flange plate 42 can still maintain stable operation under high pressure, high torque and other working conditions, thereby making the connection strength of the clamp 4 on the cylindrical pier 1 higher and more stable to use. In addition, the horizontal stiffening plate 422 can disperse the stress on the stiffening flange plate 42 to a larger area, avoiding the concentration of local stress. This stress dissipation effect helps reduce the risk of fatigue damage and failure of the stiffening flange plate 42 .

[0045] The implementation principle of the embodiment of the present application is as follows: during the cast-in-place construction of the bridge superstructure, by utilizing the already completed cylindrical pier 1 of the bridge structure, in order to avoid damage to the finished product, by installing a clamp 4 and a wall support rod 5, the already completed cylindrical pier 1 and the steel pipe column 3 can be used to add a connection system 33, thereby increasing the stability of the steel pipe column 3, reducing the investment in double steel pipe racks, reducing costs, and at the same time avoiding damage to the finished structure. The clamp 4 and wall support rod 5 are processed and manufactured in the factory and connected to form a whole on site by welding or other methods, which has the characteristics of simple production, strong operability, fast construction, safety and reliability, and low cost.

[0046] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0047] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0048] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A single-row steel pipe support anti-overturning hoop supporting wall structure, characterized in that: include: Cylindrical piers (1), a plurality of which are distributed along the length of the bridge; A plurality of steel pipe columns (3) are distributed along the length of the bridge and are located on one side of the cylindrical pier (1); A first reinforcement assembly connected between the cylindrical pier (1) and the steel pipe column (3); A second reinforcement assembly is connected between adjacent steel pipe columns (3).

2. The single-row steel pipe support anti-overturning hoop supporting wall structure according to claim 1, characterized in that: The first reinforcement component includes: A hoop (4) mounted on the cylindrical pier (1); A wall supporting rod (5) has one end fixed to the hoop (4) and the other end connected to the steel pipe column (3).

3. The single-row steel pipe support anti-overturning hoop supporting wall structure according to claim 2, characterized in that: The hoop (4) is provided with a corbel (44), and the wall supporting rod (5) is fixed on the corbel (44).

4. The single-row steel pipe support anti-overturning hoop supporting wall structure according to claim 3, characterized in that: The hoop (4) comprises: Two semicircular rings (41) are provided, and the two semicircular rings (41) surround the cylindrical pier (1); A stiffening flange plate (42) connected to both ends of the semicircular ring (41); The connecting bolts (43) are connected on the two semicircular rings (41) and between the two reinforcing flange plates (42) on the same side.

5. The single-row steel pipe support anti-overturning hoop supporting wall structure according to claim 4, characterized in that: The corbel (44) is fixed at the middle of the semicircular ring (41).

6. The single-row steel pipe support anti-overturning hoop supporting wall structure according to claim 5, characterized in that: The corbel (44) comprises: A horizontal plate (441) is horizontally fixed at the middle of the semicircular ring (41), and the wall supporting rod (5) is connected to the horizontal plate (441); A vertical stiffening plate (442) is vertically fixed to the middle of the semicircular ring (41) and connected to the horizontal plate (441).

7. The single-row steel pipe support anti-overturning hoop supporting wall structure according to claim 4, characterized in that: The stiffening flange plate (42) comprises: A flange plate (421) is vertically fixed to both ends of the semicircular ring (41), and the flange plate (421) is provided with bolt holes (4211); Horizontal stiffening plates (422) are horizontally fixed at both ends of the semicircular ring (41) and connected to the flange plate (421).

8. The single-row steel pipe support anti-overturning hoop supporting wall structure according to claim 7, characterized in that: The two semicircular rings (41) are located between the flange plates (421) with a mounting gap left therebetween.

9. The single-row steel pipe support anti-overturning hoop supporting wall structure according to claim 2, characterized in that: A reinforcing plate (31) is provided on the steel pipe column (3), and the wall supporting rod (5) is fixed on the reinforcing plate (31).

10. The single-row steel pipe support anti-overturning hoop supporting wall structure according to claim 1, characterized in that: The second reinforcement assembly includes a connection system (33), and the connection system (33) is installed between the plurality of steel pipe columns (3).

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