Bridge deck slag retaining wall construction support structure

Abstract

The utility model provides a kind of support structure for bridge deck slag retaining wall construction, it is related to bridge construction technical field, including support unit and filling box, support unit includes one beam assembly and multiple column assemblies;Each column assembly includes multiple column bodies sequentially distributed along vertical direction, and adjacent column bodies are detachably connected, beam assembly includes multiple beam bodies sequentially distributed along horizontal direction, and adjacent beam bodies are detachably connected;In each column assembly, the column body in the uppermost position is detachably connected with corresponding beam body;Two support units are used to be sequentially spaced along the width direction of bridge deck, filling box is placed between two support units, and concrete is poured in filling box to form slag retaining wall.The support structure is a kind of modular design structure, effectively solves the problem that traditional support structure is inconvenient to disassemble, can realize the quick assembly and disassembly of support structure, is convenient for multiple turnover use, reduces construction cost, improves construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and more specifically, to a support structure for bridge deck retaining wall construction. Background Technology

[0002] Bridge deck retaining walls are an important component of bridges. Their core function is "protection + isolation," primarily used to prevent debris (such as ballast and gravel) from falling onto the bridge deck, ensuring the structural safety of the bridge and the safety of traffic, while also helping to define functional areas of the bridge deck. During the construction of bridge deck retaining walls, the support structure is a key component ensuring the quality of the retaining wall's casting and preventing displacement or collapse during construction. In other words, the support structure is the core supporting component during the construction phase of the retaining wall, used to fix the construction form of the retaining wall, prevent displacement or collapse during casting, and ensure the quality of the retaining wall's final shape.

[0003] Currently, most of the mainstream bridge deck retaining wall construction support adopts integral steel structure or precast concrete support, which has obvious technical defects: First, the integral structure is large in volume and heavy in weight, requiring special equipment for transportation, and on-site disassembly and assembly require multiple people to cooperate in hoisting, resulting in extremely low construction efficiency; Second, it has poor adaptability, with traditional support height and length being fixed, which cannot flexibly match the size requirements of different bridge deck retaining walls. Utility Model Content

[0004] This utility model aims to solve at least one of the above-mentioned technical problems.

[0005] To solve the above problems, this utility model provides a support structure for the construction of a bridge deck retaining wall, including a support unit and a filling box. The support unit includes a beam assembly and multiple column assemblies, with the beam assembly disposed on top of the multiple column assemblies. Each of the column assemblies includes a plurality of column bodies arranged in sequence along the vertical direction, and adjacent column bodies are detachably connected. The beam assembly includes a plurality of beam bodies arranged in sequence along the horizontal direction, and adjacent beam bodies are detachably connected. In each of the column assemblies, the uppermost column body is detachably connected to the corresponding crossbeam body; two support units are provided, and the two support units are arranged alternately along the width direction of the bridge deck; the filling box is placed between the two support units; concrete is poured into the filling box to form a retaining wall.

[0006] This utility model provides a support structure for the construction of a bridge deck retaining wall (hereinafter referred to as the support structure), which has, but is not limited to, the following technical effects compared with the prior art: Before construction, the bridge deck construction area is cleaned up, and the support structure is first assembled on the outside of the pre-cast area of ​​the retaining wall. The two support units have the same structure and the same assembly method. For example, the outer support unit is assembled first. During the assembly of the outer support unit, the column components can be assembled first. That is, the appropriate number of column bodies is determined according to the required height of the retaining wall. The appropriate number of column bodies are detachably connected in the vertical direction to form a column component with a suitable height. Then, the appropriate number of column components can be selected according to the required length of the retaining wall. The appropriate number of column components are distributed sequentially along the length of the bridge deck at intervals. Then, the appropriate number of crossbeam bodies are spliced ​​according to the required length of the retaining wall to form a crossbeam component with a suitable length. Then, the crossbeam component can be placed on multiple column components, and the uppermost column body is connected and fixed together with the corresponding crossbeam body to complete the assembly of the outer support unit. After the outer support units are assembled, the inner support units are assembled. Finally, the infill box is placed between the inner and outer support units to form a support structure. Concrete is then poured into the infill box, and after the concrete hardens, a retaining wall is formed. During the concrete pouring process, this support structure prevents displacement and collapse of the concrete, ensuring the quality of the retaining wall. The inner and outer support units can withstand the lateral pressure during the pouring process, ensuring the smooth formation of the retaining wall.

[0007] As can be seen from the above, this support structure is a modular design, effectively solving the problem of inconvenient assembly and disassembly of traditional support structures. It enables rapid assembly and disassembly of the support structure, facilitates multiple reuses, reduces construction costs, and improves construction efficiency. Furthermore, since the column assembly can be constructed from an appropriate number of column bodies according to the preset height of the retaining wall, it can adapt to the construction needs of retaining walls of different heights, demonstrating strong adaptability. Similarly, since the beam assembly can be constructed from an appropriate number of beam bodies according to the preset length of the retaining wall, it can adapt to the construction needs of retaining walls of different lengths.

[0008] Furthermore, the support structure also includes a first flange assembly, wherein adjacent column bodies are detachably connected via the first flange assembly in each of the column assemblies; The first flange assembly includes two first flanges, one of which is detachably connected to one of the two adjacent column bodies, and the other of which is detachably connected to the other of the two adjacent flange bodies, and the two first flanges are detachably connected.

[0009] Furthermore, in each of the first flange assemblies, the center of each of the two first flanges is provided with a first internal thread hole, and the opposite ends of the two adjacent column bodies are respectively provided with a protruding first external thread post, which is used to connect with the first internal thread hole on the corresponding first flange. And / or, the first flange assembly further includes a first bolt, and each of the first flanges has a plurality of first bolt holes at its edge position, the first bolt holes of the two first flanges being used for connection by the first bolt.

[0010] Furthermore, the support structure also includes a second flange assembly, wherein adjacent beam bodies are detachably connected via the second flange assembly. The second flange assembly includes two second flanges, one of which is detachably connected to one of the two adjacent beam bodies, and the other of which is detachably connected to the other of the two adjacent beam bodies. The two second flanges are detachably connected.

[0011] Furthermore, the support structure also includes a third flange assembly, and the uppermost column body is used to detachably connect to the corresponding beam body through the third flange assembly; The third flange assembly includes two third flanges. One third flange is detachably connected to the uppermost column body, and the other third flange is welded to the corresponding crossbeam body. The two third flanges are detachably connected.

[0012] Furthermore, the top of the uppermost column body is provided with a protruding third external threaded post, and the center of the third flange corresponding to the column body is provided with a third internal threaded hole. The third external threaded post is used to connect with the third internal threaded hole. And / or, the third flange assembly further includes a third bolt, and each of the third flanges has a plurality of third bolt holes at its edge position, and the second bolt holes of the two third flanges are used for connection by the third bolt.

[0013] Furthermore, the filling box includes a base plate, two oppositely arranged first side plates and two oppositely arranged second side plates. The bottom end of each first side plate is detachably connected to the base plate, and the bottom end of each second side plate is detachably connected to the base plate. The base plate, the two second side plates and the two first side plates together form the filling box.

[0014] Furthermore, the base plate is provided with two opposing first insert plates and two opposing second insert plates. The bottom end of the first side plate is provided with a first slot that mates with the first insert plate, and the bottom end of the second side plate is provided with a second slot that mates with the second insert plate.

[0015] Furthermore, the two first side plates are distributed sequentially along the width direction of the bridge deck, and the two second side plates are distributed sequentially along the length direction of the crossbeam assembly; Wherein, the first slot is an opening structure formed at the bottom end of the first side plate, and the opening structure extends through the first side plate along the length direction of the crossbeam assembly; and / or, the second slot is an opening structure formed at the bottom end of the second side plate, and the second slot is closed at both ends along the width direction of the bridge deck. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the support structure according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the connection structure between the beam assembly and the column assembly in an embodiment of the present utility model; Figure 3 This is an exploded structural diagram of the filling box according to an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Filler box; 11. First side plate; 111. First slot; 12. Second side plate; 13. Base plate; 131. First insert plate; 132. Second insert plate; 14. Second slot; 15. Filler space; 2. Column assembly; 21. Column body; 211. First external threaded column; 3. First flange assembly; 4. Crossbeam assembly; 41. Crossbeam body; 411. Second external threaded column; 5. Second flange assembly; 511. Second bolt hole; 6. Third flange assembly; 61. Third flange. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0019] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, components, or groups of features, integers, steps, or components.

[0023] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0024] See Figures 1-3 A support structure for the construction of a bridge deck retaining wall according to an embodiment of the present utility model includes a support unit and a filling box 1. The support unit includes a crossbeam assembly 4 and multiple column assemblies 2. The crossbeam assembly 4 is disposed on the top of the multiple column assemblies 2. Each of the column assemblies 2 includes a plurality of column bodies 21 arranged vertically in sequence, and adjacent column bodies 21 are detachably connected. The beam assembly 4 includes a plurality of beam bodies 41 arranged horizontally in sequence, and adjacent beam bodies 41 are detachably connected. In each of the column assemblies 2, the uppermost column body 21 is detachably connected to the corresponding crossbeam body 41; two support units are provided, and the two support units are arranged alternately along the width direction of the bridge deck; the filling box 1 is placed between the two support units; concrete is poured into the filling box 1 to form a retaining wall.

[0025] In this embodiment, when using the support structure for the bridge deck retaining wall construction (hereinafter referred to as the support structure), the bridge deck construction area is first cleaned before construction, and the support structure is first assembled on the outside of the pre-cast area of ​​the retaining wall. The two support units have the same structure and the same assembly method. For example, the outer support unit is assembled first. During the assembly of the outer support unit, the column assembly 2 can be assembled first. That is, the appropriate number of column bodies 21 is determined according to the required preset height of the retaining wall. The appropriate number of column bodies 21 are detachably connected in the vertical direction to form a column assembly 2 with a suitable height. Then, the appropriate number of column assemblies 2 can be selected according to the required preset length of the retaining wall. The appropriate number of column assemblies 2 are distributed sequentially along the length of the bridge deck. Then, the appropriate number of crossbeam bodies 41 are spliced ​​together according to the required preset length of the retaining wall to form a crossbeam assembly 4 with a suitable length. Then, the crossbeam assembly 4 can be placed on multiple column assemblies 2, and the uppermost column body 21 is connected and fixed together with the corresponding crossbeam body 41 to complete the assembly of the outer support unit. After the outer support unit is assembled, the inner support unit is assembled. Finally, the infill box 1 is placed between the inner and outer support units to form a support structure. Then, concrete is poured into the infill box 1, and after the concrete hardens, a retaining wall is formed. During the process of pouring concrete into the infill box 1, this support structure can prevent displacement and collapse during concrete pouring, ensuring the quality of the retaining wall. The inner and outer support units can withstand the lateral pressure during the pouring process of the retaining wall, ensuring the smooth formation of the retaining wall.

[0026] As can be seen from the above, this support structure is a modular design, which effectively solves the problem of inconvenient assembly and disassembly of traditional support structures. It enables rapid assembly and disassembly of the support structure, facilitates multiple reuses, reduces construction costs, and improves construction efficiency. In addition, since the column assembly 2 can be constructed by splicing an appropriate number of column bodies 21 according to the preset height of the retaining wall, it can adapt to the construction needs of retaining walls of different heights, thus exhibiting strong adaptability. Similarly, since the beam assembly 4 can be constructed by splicing an appropriate number of beam bodies 41 according to the preset length of the retaining wall, it can adapt to the construction needs of retaining walls of different lengths.

[0027] The filling box 1 is a box structure with an internal filling space 15 and an open top, which facilitates the pouring of concrete into the internal filling space 15 from the open top.

[0028] It should be noted that, due to its modular design, the support structure can be made lighter than traditional monolithic support structures, further reducing costs. Although lightweight, the assembled support structure, once installed on the bridge deck, can still maintain stability due to its own weight, preventing it from being pushed or pushed off the bridge deck by the lateral forces of the retaining wall during pouring.

[0029] Optionally, to further enhance the stability of the support structure, the lowest column body 21 of the support unit can be fixed to the bridge deck by binding or installing anchor bolts. Or / and, before pouring, a certain amount of sand, gravel, protective cotton, and other materials can be pre-filled into the infill box. This serves two purposes: firstly, it prevents debris from falling through the gaps between the support units during construction, ensuring the safety of operations below the bridge deck; secondly, it reduces concrete slurry leakage during the pouring of the retaining wall, avoiding slurry waste and subsequent cleaning work. Simultaneously, the filling material also provides a certain buffering protection for the retaining wall, reducing the impact of pouring on the initial formation of the retaining wall. The support units on both the inner and outer sides, together with the infill box, can form a continuous support system, covering a relatively long area of ​​the retaining wall construction, thus improving the overall reliability of the support.

[0030] Optionally, see Figures 1-3 The support structure also includes a first flange assembly 3, and in each of the column assemblies 2, adjacent column bodies 21 are detachably connected through the first flange assembly 3; In this embodiment, the first flange assembly 3 includes two first flanges. One first flange is detachably connected to one of the two adjacent column bodies 21, and the other first flange is detachably connected to the other of the two adjacent flange bodies. The two first flanges are detachably connected. Ultimately, the two adjacent column bodies 21 can be detachably connected.

[0031] Optionally, see Figures 1-3 In each of the first flange assemblies 3, the center of each of the two first flanges is provided with a first internal thread hole, and the opposite ends of the two adjacent column bodies 21 are respectively provided with a protruding first external thread post 211. The first external thread post 211 is used to connect with the first internal thread hole on the corresponding first flange; and / or, the first flange assembly 3 also includes a first bolt, and the edge of each of the first flanges is provided with a plurality of first bolt holes. The first bolt holes of the two first flanges are used to connect through the first bolt.

[0032] In this embodiment, in the column assembly 2, the first external threaded column 211 at one end of two adjacent column bodies 21 is connected to the first internal threaded hole of the corresponding first flange in the first flange assembly 3, and then the two first flanges are connected by the first bolt, which is simple and efficient.

[0033] Furthermore, the column bodies 21 are fixedly connected by the first flange assembly 3. The threaded engagement between the first flange and the column body 21 further enhances the connection stability of the column assembly 2, effectively resisting the lateral pressure generated during the pouring of the retaining wall and preventing structural loosening. Moreover, the height of the column assembly 2 can be finely adjusted by adjusting the connection depth of the first external threaded column 211 within the corresponding first internal threaded hole, allowing the height of the support unit to more accurately match the preset height of the retaining wall.

[0034] In this embodiment, the two first flanges are connected and fixed by first bolts. Specifically, each of the four corners of the first flange is provided with a first bolt hole. The bolt hole design at the four corners can further enhance the connection strength and improve the overall support bearing capacity through bolts.

[0035] Optionally, see Figures 1-3 The support unit also includes a second flange assembly 5. In the beam assembly 4, adjacent beam bodies 41 are detachably connected by the second flange assembly 5.

[0036] In this embodiment, the second flange assembly 5 includes two second flanges. One second flange is detachably connected to one of the two adjacent crossbeam bodies 41, and the other second flange is detachably connected to the other of the two adjacent crossbeam bodies 41. The two second flanges are detachably connected, ultimately enabling a detachable connection between the two adjacent column bodies 21.

[0037] Optionally, see Figures 1-3 In each of the second flange assemblies 5, the center of each of the two second flanges is provided with a second internal threaded hole, and both ends of each of the crossbeam bodies 41 are provided with a protruding second external threaded post 411. The second external threaded post 411 is used to connect with the second internal threaded hole on the corresponding second flange; and / or, the second flange assembly 5 also includes a second bolt. Each of the second flanges is provided with a plurality of second bolt holes 511 at its edge position. The second bolt holes 511 of the two second flanges are used to connect through the second bolt.

[0038] In this embodiment, in the crossbeam assembly 4, the second external threaded post 411 at one end of two adjacent crossbeam bodies 41 is connected to the second internal threaded hole of the corresponding second flange in the second flange assembly 5, and then the two second flanges are connected by the second bolt, which is simple and efficient.

[0039] Furthermore, the beam bodies 41 are fixedly connected by the second flange assembly 5. The threaded engagement between the second flange and the beam body 41 further enhances the connection stability of the beam assembly 4, effectively resisting the lateral pressure generated during the pouring of the retaining wall and preventing structural loosening. Moreover, the length of the beam assembly 4 can be finely adjusted by adjusting the connection depth of the second external threaded post 411 within the corresponding second internal threaded hole, allowing the length of the support unit to more accurately match the preset length of the retaining wall.

[0040] In addition, since each beam body 41 has a protruding second external thread post 411 at both ends, the beam assembly 4 can be theoretically spliced ​​and extended indefinitely.

[0041] In this embodiment, the two second flanges are connected and fixed by second bolts. Specifically, the four corners of the second flanges are provided with second bolt holes 511. The design of the bolt holes at the four corners can further enhance the connection strength and improve the overall support bearing capacity.

[0042] Optionally, see Figures 1-3 The support unit also includes a third flange assembly 6, and the uppermost column body 21 is used to be detachably connected to the corresponding beam body 41 through the third flange assembly 6. The third flange assembly 6 includes two third flanges 61. One third flange 61 is detachably connected to the uppermost column body 21, and the other third flange 61 is welded to the corresponding crossbeam body 41. The two third flanges 61 are detachably connected.

[0043] In this embodiment, since the uppermost column body 21 and the corresponding crossbeam body 41 are connected and fixed in the vertical direction, one of the second flange assemblies 5 can be detachably connected to the top of the uppermost column body 21, and the other of the third flange assembly 6 is welded to the lower side of the crossbeam body 41. This ensures sufficient welding area while the two third flanges 61 are arranged opposite each other, which facilitates the connection and fixation of the two third flanges 61.

[0044] Optionally, see Figures 1-3 The top of the uppermost column body 21 is provided with a protruding third external threaded post, and the center of the third flange 61 corresponding to the column body 21 is provided with a third internal threaded hole. The third external threaded post is used to connect with the third internal threaded hole; and / or, the third flange assembly 6 also includes a third bolt. Each of the third flanges 61 has multiple third bolt holes at its edge position, and the second bolt holes 511 of the two third flanges 61 are used to connect through the third bolt.

[0045] In this embodiment, the top of the uppermost column body 21 is also provided with an externally threaded post, referred to as the third externally threaded post. This third externally threaded post connects to the third internally threaded hole of the corresponding third flange 61, thus fixing the uppermost column body 21 to the corresponding third flange 61. Then, the third flange 61 is connected and fixed to the third flange 61 welded onto the beam body 41, thereby completing the connection and fixation between the column assembly 2 and the beam assembly 4. Furthermore, the height of the support unit can be finely adjusted by regulating the connection depth of the third externally threaded post within the third internally threaded hole.

[0046] In this embodiment, the two third flanges 61 are connected and fixed by third bolts. Specifically, the third flanges 61 are provided with third bolt holes at all four corners. The bolt hole design at the four corners can further enhance the connection strength and improve the overall support bearing capacity.

[0047] Furthermore, in each flange assembly (first flange assembly 3, second flange assembly 5, and third flange assembly 6), the bolt holes at the four corners of the flange can be used to fix the flanges at multiple points through bolts. Compared with a single or asymmetrical hole design, this makes the flange more evenly stressed and avoids local stress concentration that could lead to flange deformation or loosening of the connection. This symmetrically distributed hole can also ensure the coaxiality of each column body 21 in column assembly 2 and the coaxiality of each beam body 41 in beam assembly 4, further enhancing the overall stability of the support structure and ensuring that it is not prone to tilting or displacement under the lateral pressure of the slag retaining wall pouring.

[0048] Optionally, see Figure 3 The filling box includes a base plate 13, two oppositely arranged first side plates 11 and two oppositely arranged second side plates 12. The bottom end of each first side plate 11 is detachably connected to the base plate 13, and the bottom end of each second side plate 12 is detachably connected to the base plate 13. The base plate 13, the two second side plates 12 and the two first side plates 11 together form the filling box.

[0049] In this embodiment, the filling box 1 is an assembled filling box. Specifically, it is assembled from multiple panels, which facilitates transportation and transfer.

[0050] Optionally, see Figure 3 The base plate 13 is provided with two opposing first insert plates 131 and two opposing second insert plates 132. The bottom end of the first side plate 11 is provided with a first slot 111 that cooperates with the first insert plate 131, and the bottom end of the second side plate 12 is provided with a second slot 14 that cooperates with the second insert plate 132.

[0051] In this embodiment, the first side plate 11 and the bottom plate 13 are connected by the insertion and engagement of the first slot 111 and the first insert plate 131, and the second side plate 12 and the bottom plate 13 are connected by the insertion and engagement of the second slot 14 and the second insert plate 132. This simplifies the operation process and improves the installation efficiency of the filling box. At the same time, this insertion structure can also ensure the stability of the connection between the side plate and the bottom plate 13, and prevent the filling box from falling apart during the construction of the retaining wall.

[0052] Optionally, see Figure 3 Two first side plates 11 are distributed sequentially along the width direction of the bridge deck, and two second side plates 12 are distributed sequentially along the length direction of the crossbeam assembly 4; Wherein, the first slot 111 is an opening structure formed at the bottom end of the first side plate 11, and the opening structure extends through the first side plate 11 along the length direction of the crossbeam assembly 4; and / or, the second slot 14 is an opening structure formed at the bottom end of the second side plate 12, and the second slot 14 is closed at both ends along the width direction of the bridge deck.

[0053] In this embodiment, the movable filling box, through the combination of the base plate 13, the first side plate 11, and the second side plate 12, and the cooperation of the first insert plate 131 with the first slot 111 and the second insert plate 132 with the second slot 14, can not only adapt to support units with different spacings, but also achieve rapid assembly. The quick-insert opening design (opening structure) of the first slot 111 further simplifies the disassembly and assembly operation. That is, the quick-insert opening design of the first slot 111 allows the first insert plate 131 to be inserted into the slot laterally from the opening at one end of the first slot 111 without having to be fully inserted from the end of the slot. This significantly shortens the assembly time of the first side plate 11 and the base plate 13. Especially in scenarios where the spacing between support units is small and the operating space is limited, it can significantly improve the ease of disassembly and assembly of the filling box and reduce the operational difficulty for construction personnel.

[0054] The two ends of the second slot 14 are closed, which ensures that it can effectively resist the lateral force during the pouring of the retaining wall in the width direction of the bridge deck; moreover, the closed design of the two ends of the second slot 14 can prevent the second side plate from falling off under the force, and can ensure that the second side plate 12 is fixed on the second insert plate 132.

[0055] In summary, the overall working principle of this support structure is as follows: Before construction, the bridge deck construction area should be cleaned and all modular components prepared. The first step is to assemble the column assembly 2. During this process, based on the design height of the retaining wall, a suitable number of column bodies 21 are selected. Adjacent column bodies 21 are connected and fixed using the first flange assembly 3. The overall height of the column assembly 2 can be finely adjusted by the engagement depth of the first external threaded post 211 on the column body 21, achieving flexible fixing of the support height. At least two column assemblies 2 should be prepared.

[0056] Next, the beam assembly 4 can be assembled and connected: During this process, according to the design length of the retaining wall, a suitable number of beam bodies 41 are selected. Adjacent beam bodies 41 are connected and fixed by the second flange assembly 5. The overall length of the beam assembly 4 can be finely adjusted by the engagement depth of the second external threaded column 411 on the beam, so as to achieve flexible fixing of the support length.

[0057] Next, the beam assembly 4 is connected and fixed to the uppermost column body 21 through the third connecting flange, so that the beam assembly 4 and multiple column assemblies 2 form a vertical support frame. At the same time, high-strength bolts are inserted through the bolt holes on each flange assembly to further strengthen the stability of the connection and prevent loosening caused by the lateral pressure of the slag retaining wall pouring.

[0058] Then install the filling box: According to the preset height of the required retaining wall, select the first side plate 11 and the second side plate 12 of appropriate height, place the bottom plate 13 flat in the bridge area between the two support units, insert the second side plate 12 into the second insert plate 132 at both ends of the bottom plate 13 through the second slot 14, and insert the first side plate 11 into the first insert plate 131 on both sides of the bottom plate 13 through the first slot 111. The quick-connect opening of the first slot 111 is used to quickly complete the assembly, and the filling box can be fixed without additional tools.

[0059] Finally, the overall structure was checked. By adjusting the flange engagement and bolt tightness, it was ensured that the column assembly 2, beam assembly 4 and filling box formed a complete support system. This system can adapt to different construction conditions through modular connection, and can resist the lateral pressure during the pouring of the retaining wall by relying on multiple threaded and bolted connections. At the same time, the filling box 1 was used to seal the support gaps to prevent grout leakage and debris from falling.

[0060] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include at least one of those features.

[0061] Although the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A construction support structure for a bridge deck retaining wall, characterized in that, It includes a support unit and a filling box (1), the support unit including a beam assembly (4) and a plurality of column assemblies (2), the beam assembly (4) being disposed on top of the plurality of column assemblies (2); Each of the column assemblies (2) includes a plurality of column bodies (21) arranged in sequence along the vertical direction, and adjacent column bodies (21) are detachably connected. The beam assembly (4) includes a plurality of beam bodies (41) arranged in sequence along the horizontal direction, and adjacent beam bodies (41) are detachably connected. In each of the column assemblies (2), the uppermost column body (21) is detachably connected to the corresponding crossbeam body (41); two support units are provided, and the two support units are arranged alternately along the width direction of the bridge deck, and the filling box (1) is placed between the two support units; concrete is poured into the filling box (1) to form a retaining wall.

2. The bridge deck retaining wall construction support structure according to claim 1, characterized in that, It also includes a first flange assembly (3), in which adjacent column bodies (21) are detachably connected through the first flange assembly (3); The first flange assembly (3) includes two first flanges, one of which is detachably connected to one of the two adjacent column bodies (21), and the other of which is detachably connected to the other of the two adjacent flange bodies, and the two first flanges are detachably connected.

3. The bridge deck retaining wall construction support structure according to claim 2, characterized in that, In each of the first flange assemblies (3), the center of the two first flanges is provided with a first internal thread hole, and the opposite ends of the two adjacent column bodies (21) are respectively provided with a protruding first external thread post (211), which is used to connect with the first internal thread hole on the corresponding first flange. And / or, the first flange assembly (3) further includes a first bolt, and each of the first flanges has a plurality of first bolt holes at its edge position, and the first bolt holes of the two first flanges are used to connect by the first bolt.

4. The bridge deck retaining wall construction support structure according to claim 1, characterized in that, It also includes a second flange assembly (5), in which adjacent beam bodies (41) are detachably connected via the second flange assembly (5); The second flange assembly (5) includes two second flanges, one of which is detachably connected to one of the two adjacent beam bodies (41), and the other of which is detachably connected to the other of the two adjacent beam bodies (41), and the two second flanges are detachably connected.

5. The bridge deck retaining wall construction support structure according to claim 4, characterized in that, In each of the second flange assemblies (5), the center of each of the two second flanges is provided with a second internal thread hole, and both ends of each of the beam bodies (41) are provided with a protruding second external thread post (411), which is used to connect with the second internal thread hole on the corresponding second flange. And / or, the second flange assembly (5) further includes a second bolt, and each of the second flanges is provided with a plurality of second bolt holes (511) at its edge position, and the second bolt holes (511) of the two second flanges are used for connection by the second bolt.

6. The bridge deck retaining wall construction support structure according to claim 1, characterized in that, It also includes a third flange assembly (6), and the uppermost column body (21) is used to detachably connect to the corresponding beam body (41) via the third flange assembly (6); The third flange assembly (6) includes two third flanges (61), one of which is detachably connected to the uppermost column body (21), and the other is welded to the corresponding beam body (41), and the two third flanges (61) are detachably connected.

7. The bridge deck retaining wall construction support structure according to claim 6, characterized in that, The top of the uppermost column body (21) is provided with a protruding third external threaded column, and the center of the third flange (61) corresponding to the column body (21) is provided with a third internal threaded hole. The third external threaded column is used to connect with the third internal threaded hole. And / or, the third flange assembly (6) further includes a third bolt, and each of the third flanges (61) has a plurality of third bolt holes at its edge position, and the second bolt holes (511) of the two third flanges (61) are used for connection by the third bolt.

8. The bridge deck retaining wall construction support structure according to claim 7, characterized in that, The filling box (1) includes a base plate (13), two oppositely arranged first side plates (11) and two oppositely arranged second side plates (12). The bottom end of each first side plate (11) is detachably connected to the base plate (13), and the bottom end of each second side plate (12) is detachably connected to the base plate (13).

9. The bridge deck retaining wall construction support structure according to claim 8, characterized in that, The base plate (13) is provided with two opposing first insert plates (131) and two opposing second insert plates (132). The bottom end of the first side plate (11) is provided with a first slot (111) that cooperates with the first insert plate (131), and the bottom end of the second side plate (12) is provided with a second slot (14) that cooperates with the second insert plate (132).

10. The bridge deck retaining wall construction support structure according to claim 9, characterized in that, Two first side plates (11) are distributed sequentially along the width direction of the bridge deck, and two second side plates (12) are distributed sequentially along the length direction of the crossbeam assembly (4); Wherein, the first slot (111) is an opening structure opened at the bottom end of the first side plate (11), and the opening structure passes through the first side plate (11) along the length direction of the crossbeam assembly (4); and / or, the second slot (14) is an opening structure opened at the bottom end of the second side plate (12), and the second slot (14) is closed at both ends along the width direction of the bridge deck.

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