Support frame and bridge deck support system

Abstract

This invention belongs to the field of municipal road construction technology and discloses a support frame and bridge deck support system. The support frame includes a support body and multiple top support components. The support body is detachably and fixedly connected to the main steel structure. Multiple top support components are spaced apart along the width of the main steel structure. Each top support component includes a lead rod, an adjusting nut, and a load-bearing seat. The support body has a through hole, the lead rod is vertically inserted into the through hole, the adjusting nut is threaded onto the lead rod and rotatably abuts against the support body, and the load-bearing seat is fixedly connected to the end of the lead rod, supporting the formwork. This support frame can adjust the height of the formwork at different positions through the load-bearing seat, accurately and quickly compensating for elevation deviations between the support body and the formwork, flexibly adapting to steel-concrete composite beam bridge decks with different cross-sectional forms. It eliminates the need for reprocessing or modifying the support frame, thereby greatly improving construction quality and efficiency.

Description

Technical Field

[0001] This invention relates to the field of municipal road construction technology, and in particular to a support frame and bridge deck support system. Background Technology

[0002] With the rapid development of urban transportation infrastructure construction, steel-concrete composite beams are widely used in various highway and railway bridge projects due to their dual advantages of high rigidity and convenient construction of steel structures and superior load-bearing capacity and durability of concrete structures. Steel-concrete composite beam bridge decks are mostly constructed using cast-in-place methods. During construction, scaffolding is required to support the formwork and cast-in-place concrete to ensure the quality of the bridge deck pouring and construction safety.

[0003] Currently, the support structures used in the construction of steel-concrete composite beam bridge decks are mostly triangular supports and suspended supports. These support structures have problems such as heavy weight, poor adjustment flexibility, and low turnover rate, and cannot well meet the engineering requirements of multi-section adaptation and lightweight construction of bridge decks in municipal road construction.

[0004] Therefore, there is an urgent need to design a bridge deck support structure to solve the above-mentioned problems in the existing technology. Summary of the Invention

[0005] The purpose of this invention is to provide a support frame and bridge deck support system that is flexible in assembly and disassembly, convenient in use, and can improve construction quality and efficiency.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Support frame, including:

[0008] Support body, used for detachable and fixed connection with the main steel structure;

[0009] Multiple top support assemblies are spaced apart along the width of the main steel structure. Each top support assembly includes a lead screw, an adjusting nut, and a support seat. A through hole is provided on the support body. The lead screw is vertically inserted into the through hole. The adjusting nut is threaded onto the lead screw and rotatably abuts against the support body. The support seat is fixedly connected to the end of the lead screw and is used to support the template.

[0010] Preferably, the support frame further includes diagonal braces, one end of which is bolted to the bottom lug plate of the main steel structure, and the other end of which is bolted to the support body.

[0011] Preferably, the diagonal brace has a first connecting through hole at each end, and a reinforcing plate is welded to the end of the diagonal brace. The reinforcing plate has a second connecting through hole facing the first connecting through hole. The first connecting through hole and the second connecting through hole form a bolt hole for bolts to pass through.

[0012] Preferably, the support body is a square tube.

[0013] Preferably, the support frame further includes a connecting plate, and the end of the support body has a groove along the length direction that matches the connecting plate. The connecting plate is inserted into the groove and welded to the support body.

[0014] The connecting plate is bolted to the top ear plate of the main steel structure.

[0015] The bridge deck support system includes support beams and the aforementioned support frames. Multiple support frames are spaced apart along the length of the main steel structure. The support beams are laid on the top support assembly along the length of the main steel structure, and the support beams are used to abut against the template.

[0016] Preferably, the bridge deck support system further includes a protective component, which is disposed at the edge of the template away from the main steel structure and extends along the length of the main steel structure and is respectively connected to a plurality of the supports.

[0017] Preferably, the protective assembly includes horizontal railings and vertical railings that are connected to the support body one by one, wherein the horizontal railings are fixedly connected to a plurality of the vertical railings along the length of the main steel structure.

[0018] Preferably, the protective component further includes a bottom baffle, which is disposed on the template and is fixedly connected to a plurality of vertical railings along the length of the main steel structure.

[0019] Preferably, the support beam includes square timber and longitudinal beams. The longitudinal beams are arranged along the length of the main steel structure and abut against the load-bearing seats of the plurality of top support components. The square timbers press against the longitudinal beams vertically and are used to abut against the template.

[0020] The beneficial effects of this invention are as follows:

[0021] The support frame provided by this invention includes a support body and multiple top support components. The support body is connected to the main steel structure, and the multiple top support components are spaced apart on the support body along the width direction of the main steel structure. The load-bearing seat is used to support the formwork. Since the adjusting nut is threaded onto the lead screw and the adjusting nut is rotatably abutted against the support body, rotating the adjusting nut can drive the lead screw to move vertically up and down, thereby adjusting the height of the supported formwork. Because the multiple top support components are spaced apart on the support body along the width direction of the main steel structure, the height of the formwork at different positions can be adjusted through the load-bearing seat during construction, accurately and quickly compensating for the elevation deviation between the support body and the formwork. This allows for flexible adaptation to steel-concrete composite beam bridge decks with different cross-sectional shapes, eliminating the need for reprocessing or modifying the support frame, thus greatly improving construction quality and efficiency. Since the support body and the main steel structure are detachably connected, no on-site welding is required, resulting in high disassembly and assembly efficiency and reusability, thereby reducing construction costs.

[0022] The bridge deck support system provided by this invention includes support beams and multiple support frames. The multiple support frames are spaced apart along the length of the main steel structure. The support beams are laid on the multiple support frames, which can support the upper formwork and transfer and evenly distribute the load to the multiple support frames below. Through the cooperation of the support beams and support frames, this bridge deck support system can achieve stable support for the bridge deck and can also adjust the support form according to the bridge deck with different cross-sectional shapes, making it widely adaptable and highly practical. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of a bridge deck support system with a specific cross-sectional shape provided by a specific embodiment of the present invention;

[0024] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0025] Figure 3 yes Figure 1 A magnified view of a section at point B in the middle;

[0026] Figure 4 yes Figure 1 A magnified view of a section at point C;

[0027] Figure 5 This is a top view showing the connection between the insert plate and the support body.

[0028] Figure 6 This is a structural schematic diagram of another cross-sectional form of bridge deck support system provided in a specific embodiment of the present invention;

[0029] Figure 7 yes Figure 6 A magnified view of a section at point D.

[0030] In the picture:

[0031] 100 - Steel structure main body; 110 - Top ear plate; 120 - Bottom ear plate;

[0032] 200- Template;

[0033] 300-bridge deck;

[0034] 1-Supporting body;

[0035] 2-Top support assembly; 21-Screw rod; 22-Adjusting nut; 23-Bearing seat;

[0036] 3-Diagonal brace; 31-Reinforcing plate;

[0037] 4-Connecting plug-in board;

[0038] 5-Support beam; 51-Square timber; 52-Longitudinal beam;

[0039] 6-Protective components; 61-Vertical railing; 62-Horizontal railing; 63-Bottom baffle; 64-Leveling pad. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0041] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0044] like Figure 1 , Figure 2 as well as Figure 6 As shown, the present invention provides a support frame, which includes a support body 1 and multiple top support components 2. The support body 1 is used for detachable and fixed connection with the main steel structure 100. The multiple top support components 2 are spaced apart along the width direction of the main steel structure 100. Each top support component 2 includes a lead rod 21, an adjusting nut 22, and a load-bearing seat 23. The support body 1 has a through hole. The lead rod 21 is inserted vertically into the through hole. The adjusting nut 22 is threadedly fitted onto the lead rod 21 and is rotatably abutted against the support body 1. The load-bearing seat 23 is fixedly connected to the end of the lead rod 21 and is used to support the template 200. In this embodiment, since the adjusting nut 22 is threaded onto the lead screw 21 and the adjusting nut 22 is rotatably abutted against the support body 1, rotating the adjusting nut 22 can drive the lead screw 21 to rise and fall vertically, thereby adjusting the height of the upper supported template 200. Since multiple top support components 2 are spaced apart on the support body 1 along the width direction of the steel structure body 100, the height of the template 200 at different positions can be adjusted by the load-bearing seat 23 during construction, accurately and quickly compensating for the elevation deviation between the support body 1 and the template 200, so as to flexibly adapt to the steel-concrete composite beam bridge deck 300 with different cross-sectional forms, without the need to reprocess or modify the support frame, thereby greatly improving the construction quality and construction efficiency. Since the support body 1 and the steel structure body 100 are detachably connected, no on-site welding is required, the disassembly and assembly efficiency is high, and it can be reused, thereby reducing the construction cost.

[0045] Specifically, the top support component 2 is a construction top support frame commonly used in this field, used to support and adjust the height of the upper formwork 200; after the support body 1 and the top support component 2 are installed, the construction personnel can climb onto the formwork 200 to pour concrete to form a bridge deck 300 with a specified cross-sectional shape.

[0046] To improve the support stability and reliability of the support frame, such as Figure 1 , Figure 2 as well as Figure 4As shown, the support frame also includes diagonal braces 3. One end of the diagonal brace 3 is bolted to the bottom ear plate 120 of the main steel structure 100, and the other end of the diagonal brace 3 is bolted to the support body 1. The diagonal brace 3 is diagonally supported between the main steel structure 100 and the support body 1 to form a stable triangular structure, thereby improving the support stability and reliability of the support frame. Since the two ends of the diagonal brace 3 are connected to the main steel structure 100 and the support body 1 by bolts respectively, it is easy to disassemble and improves the turnover rate of the support frame.

[0047] like Figure 1 , Figure 2 as well as Figure 4 As shown, the diagonal brace 3 has first connecting through holes at both ends, and a reinforcing plate 31 is welded to the end of the diagonal brace 3. The reinforcing plate 31 has a second connecting through hole directly opposite the first connecting through hole. The first and second connecting through holes form a bolted hole for bolts to pass through. The reinforcing plate 31 can locally reinforce the connection position at the end of the diagonal brace 3 to improve the load-bearing capacity of the end of the diagonal brace 3. Specifically, the reinforcing plate 31 is made of steel plate and welded to the end of the diagonal brace 3. The second connecting through hole is directly opposite the first connecting through hole, forming a bolted hole for bolts to pass through, thereby realizing the bolted connection between the end of the diagonal brace 3 and the bottom ear plate 120 and the support body 1. The specific structure of the diagonal brace 3 can be set according to the actual situation, for example, it can be a steel pipe, steel plate, or various types of steel. In this embodiment, channel steel is selected for the diagonal brace 3.

[0048] The specific structure of the support body 1 can be selected according to the actual situation, as long as it can meet the requirements of bearing capacity of the top support component 2 and the overall structural strength. In this embodiment, the support body 1 is a square tube, the top support component 2 is set on the upper surface of the support body 1, and a connecting plate is welded on the lower surface of the support body 1. The connecting plate has through holes for connecting with the diagonal brace 3 by bolts. In addition, the support body 1 adopts a hollow square tube, which reduces its own weight while meeting the structural strength requirements, thereby improving the convenience and safety of construction.

[0049] The support 1 is bolted to the main steel structure 100 for easy assembly and disassembly; specifically, such as Figure 3 and Figure 5As shown, the support frame also includes a connecting plate 4. The end of the support body 1 has a groove along its length that matches the connecting plate 4. The connecting plate 4 is inserted into the groove and welded to the support body 1. The connecting plate 4 is bolted to the top ear plate 110 of the steel structure main body 100. In this embodiment, the connecting plate 4 is fixed to the top ear plate 110 of the steel structure main body 100 by bolts. The support body 1 is a square tube, and the width of the connecting plate 4 is greater than the long side length of the square tube. A groove is provided at one end of the square tube near the steel structure main body 100, allowing the square tube to be inserted into the connecting plate 4 through the groove. When the connecting plate 4 is inserted into the groove, both sides of the connecting plate 4 extend out of the groove. Construction workers weld the insertion gap between the connecting plate 4 and the square tube, thereby greatly improving the connection strength between the connecting plate 4 and the support body 1.

[0050] This embodiment also provides a bridge deck support system, which includes support beams 5 and multiple support frames as described above. The multiple support frames are spaced apart along the length of the main steel structure 100. The support beams 5 are laid on the top support assembly 2 along the length of the main steel structure 100 and are used to abut against the template 200. Through the cooperation of the support beams 5 and the support frames, this bridge deck support system can achieve stable support for the bridge deck 300, and can also adjust the support shape according to the different cross-sectional shapes of the bridge deck 300, with a wide range of adaptability and strong practicality.

[0051] Specifically, multiple support frames are spaced apart along the length of the main steel structure 100, and support beams 5 are laid on the multiple support frames, which can support the upper formwork 200 and transfer the load and distribute it evenly to the multiple support frames below.

[0052] To improve the flexibility of the bridge deck support system, multiple support beams 5 are independently arranged along the width direction of the main steel structure 100 to cooperate with the top support assembly to support bridge decks 300 with different cross-sectional shapes; for example, such as Figure 6 and Figure 7 As shown, when constructing the bridge deck 300 with an inclined edge bottom surface, the construction personnel adjust the height of the load-bearing seat 23 according to the drawing requirements, and place multiple support beams 5 spaced apart along the width direction of the main steel structure 100 on the load-bearing seat 23 to provide support for the formwork 200 at a specified inclination angle.

[0053] Furthermore, such as Figure 2 and Figure 7As shown, the support beam 5 includes square timber 51 and longitudinal beam 52. The longitudinal beam 52 is arranged along the length of the main steel structure 100 and abuts against the load-bearing seats 23 of multiple top support components 2. The square timber 51 presses against the longitudinal beam 52 vertically and is used to abut against the template 200. In this embodiment, the longitudinal beam 52 is a steel pipe, which is inserted into the load-bearing seat 23 along the length of the main steel structure 100. The square timber 51 presses against the longitudinal beam 52 along the length of the main steel structure 100, and the template 200 presses against the square timber 51. The support beam 5 also includes a leveling pad 64 with a leveling slope. When constructing the bridge deck 300 with an inclined bottom surface, the construction personnel place the leveling pad 64 between the longitudinal beam 52 and the square timber 51, and make the leveling slope abut against the template 200 above, so as to ensure the stability and reliability of the support for the template 200. It is understandable that the longitudinal beam 52 can also be made of square tube, channel steel or other structures, as long as it can provide stable support for the square timber 51. The form of the longitudinal beam 52 is not limited here.

[0054] To improve the construction safety of the bridge deck support system, such as Figure 1 As shown, the bridge deck support system also includes a protective component 6. The protective component 6 is used to be installed on the edge of the template 200 away from the main steel structure 100. The protective component 6 extends along the length of the main steel structure 100 and is connected to multiple supports 1 respectively. The protective component 6 is used to protect the construction personnel who are working on the template 200, so as to effectively ensure the safety of the construction personnel.

[0055] The specific structure of the protective component 6 can be configured according to actual conditions. For example, such as... Figure 1 As shown, the protective component 6 includes horizontal railings 62 and vertical railings 61 that are connected one-to-one with the support body 1. The horizontal railings 62 are fixedly connected to multiple vertical railings 61 along the length of the main steel structure 100. Specifically, both the vertical railings 61 and the horizontal railings 62 are steel pipes. The vertical railings 61 are welded to the support body 1 below, and the horizontal railings 62 are set perpendicular to the vertical railings 61. The horizontal railings 62 are welded to the vertical railings 61 to form a stable and reliable whole.

[0056] Furthermore, such as Figure 1 As shown, the protective component 6 also includes a bottom baffle 63, which is disposed on the template 200 and is fixedly connected to multiple vertical railings 61 along the length of the main steel structure 100. The bottom baffle 63 can block tools placed on the template 200 by construction workers to prevent them from falling from below the horizontal railings 62. In this embodiment, the bottom baffle 63 is a plate-like structure and can be made of plastic, wood, or steel plate.

[0057] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A support frame, characterized in that, include: Support body (1) for detachable and fixed connection with the main steel structure (100); Multiple top support assemblies (2) are spaced apart along the width direction of the main steel structure (100). Each top support assembly (2) includes a lead screw (21), an adjusting nut (22), and a support seat (23). A through hole is provided on the support body (1). The lead screw (21) is inserted vertically into the through hole. The adjusting nut (22) is threadedly fitted onto the lead screw (21) and rotatably abuts against the support body (1). The support seat (23) is fixedly connected to the end of the lead screw (21) and is used to support the template (200).

2. The support frame according to claim 1, characterized in that, The support frame also includes a diagonal brace (3), one end of which is bolted to the bottom ear plate (120) of the main steel structure (100), and the other end of which is bolted to the support body (1).

3. The support frame according to claim 2, characterized in that, The diagonal brace (3) has a first connecting through hole at each end. A reinforcing plate (31) is welded to the end of the diagonal brace (3). A second connecting through hole is provided on the reinforcing plate (31) facing the first connecting through hole. The first connecting through hole and the second connecting through hole form a bolt hole for bolts to pass through.

4. The support frame according to claim 1, characterized in that, The support (1) is a square tube.

5. The support frame according to claim 4, characterized in that, The support frame also includes a connecting plate (4), and the end of the support body (1) is provided with a groove matching the connecting plate (4) along the length direction. The connecting plate (4) is inserted into the groove and welded to the support body (1). The connecting plate (4) is bolted to the top ear plate (110) of the main steel structure (100).

6. A bridge deck support system, characterized in that, The structure includes a support beam (5) and a plurality of support frames as described in any one of claims 1-5, wherein the plurality of support frames are spaced apart along the length direction of the main body of the steel structure (100), and the support beam (5) is laid on the top support assembly (2) along the length direction of the main body of the steel structure (100), and the support beam (5) is used to abut against the template (200).

7. The bridge deck support system according to claim 6, characterized in that, The bridge deck support system also includes a protective component (6), which is used to be disposed on the edge of the template (200) away from the main steel structure (100). The protective component (6) extends along the length of the main steel structure (100) and is respectively connected to a plurality of the supports (1).

8. The bridge deck support system according to claim 7, characterized in that, The protective component (6) includes a horizontal railing (62) and vertical railings (61) that are connected one-to-one with the support body (1). The horizontal railings (62) are fixedly connected to a plurality of vertical railings (61) along the length of the main steel structure (100).

9. The bridge deck support system according to claim 8, characterized in that, The protective component (6) also includes a bottom baffle (63), which is disposed on the template (200) and is fixedly connected to a plurality of vertical railings (61) along the length of the main steel structure (100).

10. The bridge deck support system according to claim 6, characterized in that, The support beam (5) includes square timber (51) and longitudinal beam (52). The longitudinal beam (52) is arranged along the length direction of the main steel structure (100), and the longitudinal beam (52) abuts against the load-bearing seat (23) of the multiple top support components (2). The square timber (51) presses against the longitudinal beam (52) vertically, and the square timber (51) is used to abut against the template (200).

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