Supporting structure for bridge engineering construction

Abstract

The supporting structure for bridge engineering construction comprises fastening assemblies, clamping pieces, longitudinal rods, transverse rods, a bottom formwork and prefabricated beams, flange plates are arranged on the two sides of each prefabricated beam, and the multiple clamping pieces are arranged on the bottom faces, between every two adjacent prefabricated beams, of the flange plates in the length direction of the flange plates through the fastening assemblies. A longitudinal rod is mounted on the clamping pieces on the same side; a bottom formwork and a transverse rod are sequentially arranged between the adjacent longitudinal rods and the flange plates from top to bottom, and the two ends of the transverse rod are placed on the corresponding longitudinal rods respectively. By arranging the fastening assemblies, the clamping pieces, the longitudinal rods, the transverse rods and the bottom formwork, only one worker is needed to conduct construction at the bottom of the precast beam during construction; a workpiece does not need to penetrate through the bottom template during mounting, so that the service life of the bottom template is prolonged, and the cost is reduced; the bottom formwork is supported by arranging the clamping pieces, bolt connection and fixation are not needed, bolt holes do not need to be plugged for the second time after precast beam construction is completed, and the work content is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of wet joint construction in bridge engineering, in particular to a support structure for bridge engineering construction. Background Technique

[0002] Prefabricated beams widely used in bridge engineering have many advantages. Since prefabricated beams are manufactured in factories or production lines, the construction environment can be controlled to ensure the quality of materials and construction quality; prefabricated beams can reduce the construction period and improve construction efficiency. Compared with traditional construction methods, the production time of prefabricated beams is shorter, and they can be carried out simultaneously with other work at the construction site, reducing the waiting time during construction. At the same time, the construction quality of the wet joints of prefabricated beams has also become an important link to ensure the construction quality of bridges.

[0003] The utility model with the publication number of CN209816663U discloses a wet joint template device for the wing plates of precast box girders or T girders. In this wet joint template device for the wing plates of precast box girders or T girders, upper longitudinal ribs and upper transverse ribs are respectively arranged on the upper surfaces of the precast beams on both sides of the wet joint. Vertical tensioning screws pass through the upper transverse ribs, the wet joint, the bottom formwork and the lower transverse ribs and are tightened to make the upper transverse ribs and the lower transverse ribs pull each other tightly. Support pads are fixed on the vertical tensioning screws, and the support pads are supported in the grooves of the bottom formwork. This wet joint template device for the wing plates of precast box girders or T girders improves the problem that formwork removal is inconvenient and the formwork is easily damaged and deformed during formwork removal by setting support pads. However, this wet joint template device for the wing plates of precast box girders or T girders still has the following defects: the construction is cumbersome, and multiple workers are required to cooperate and construct simultaneously at two places on the top and bottom of the beam during construction; the installation requires tensioning screws to pass through the bottom formwork, reducing the service life of the bottom formwork and increasing the cost; it needs to be further improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide a support structure for bridge engineering construction, aiming to improve the problems that multiple workers are required to cooperate and construct simultaneously at two places on the top and bottom of the beam during the construction of the existing support structure for bridge engineering construction; the installation requires tensioning screws to pass through the bottom formwork, reducing the service life of the bottom formwork and increasing the cost.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a support structure for bridge engineering construction, including fastening components, clamping components, longitudinal rods, transverse rods, bottom formwork and precast beams. Wing flanges are arranged on both sides of the precast beams. A number of clamping components are arranged along the length direction of the bottom surfaces of the wing flanges between two adjacent precast beams through the fastening components. Longitudinal rods are commonly installed on the clamping components on the same side; a bottom formwork and a transverse rod are sequentially arranged from top to bottom between the adjacent longitudinal rods and the wing flanges, and the two ends of the transverse rod are respectively placed on the corresponding longitudinal rods.

[0006] Preferably, the card member includes a connecting plate and a U-shaped plate. The connecting plate is detachably mounted at the bottom of the flange plate through a fastening component. The connecting plate and the U-shaped plate are fixedly connected. The inner groove of the U-shaped plate opens upward. A first bolt rod is provided at the bottom of the U-shaped plate. The longitudinal rod is embedded in the groove of the U-shaped plate. The first bolt rod penetrates through the U-shaped plate and abuts against the longitudinal rod.

[0007] Preferably, the fastening component includes the threaded sleeve and the second bolt rod. The threaded sleeve is embedded in the lower surface of the flange plate. The second bolt rod penetrates through the connecting plate and is connected to the threaded sleeve.

[0008] Preferably, the U-shaped plate includes a first side plate, a bottom plate and a second side plate. The upper end of the side surface of the first side plate close to the precast beam is fixedly connected to the connecting plate. A bottom plate is fixedly connected between the bottoms of the first side plate and the second side plate. The bottoms of the first side plate, the second side plate and the bottom plate are on the same horizontal plane.

[0009] Preferably, the length of the longitudinal rod is the distance between adjacent card members. The longitudinal rod and the cross rod are vertically and staggeredly arranged.

[0010] Preferably, the materials of the longitudinal rod and the cross rod are square timbers, and the material of the bottom formwork is multi-layer board.

[0011] Preferably, sponge strips are clamped at the positions where the two sides of the top surface of the bottom formwork abut against the bottom surface of the flange plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By setting the fastening component, the card member, the longitudinal rod, the cross rod and the bottom formwork, the present utility model realizes the purpose that only one worker is required to construct at the bottom of the precast beam during construction.

[0014] 2. By setting the fastening component, the card member, the longitudinal rod, the cross rod and the bottom formwork, the present utility model realizes the purpose of increasing the service life of the bottom formwork and reducing the cost when the workpiece does not need to pass through the bottom formwork during installation.

[0015] 3. By setting the card member to support the bottom formwork, the present utility model does not need to be connected and fixed by bolts, so that the precast beam does not need to be secondarily plugged with bolt holes after construction is completed, simplifying the work content. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 Schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 Schematic diagram of the structure at A in the present invention;

[0019] Figure 3 For the present invention Figure 1 Schematic diagram of the structure at B in the present invention;

[0020] Figure 4 Schematic diagram of the structure of the card member of the present invention;

[0021] Figure 5 Schematic diagram of the front structure of the present invention.

[0022] In the figure: 1, fastening assembly; 2, card member; 3, longitudinal rod; 4, cross bar; 5, bottom formwork; 6, precast beam; 7, flange plate; 8, first bolt rod; 9, connecting plate; 10, U-shaped plate; 11, first side plate; 12, second side plate; 13, threaded sleeve; 14, second bolt rod. Detailed implementation manners

[0023] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0024] The following will be further described in conjunction with the drawings and specific embodiments. Embodiment 1

[0025] As Figures 1-3 and Figure 5As shown in the figure, a support structure for bridge engineering construction includes a fastening assembly 1, a clamping member 2, a longitudinal rod 3, a cross rod 4, a bottom formwork 5 and a precast beam 6. Flange plates 7 are provided on both sides of the precast beam 6. A plurality of fastening assemblies 1 are respectively arranged along the length direction of the bottom surface of the flange plates 7 between two adjacent precast beams 6. The fastening assemblies 1 under the same flange plate 7 form a group, and the fastening assemblies 1 in the same group are arranged at equal intervals along the length direction of the flange plate 7. The interval should be determined according to the load-bearing capacity of the support structure. The fastening assembly 1 includes a threaded sleeve 13 and a second bolt rod 14. The threaded sleeve 13 is embedded in the lower surface of the flange plate 7 and is fixed to the steel bars of the precast beam 6 in advance during the precasting process of the precast beam 6. After being firmly fixed, the upper opening of the threaded sleeve 13 should be sealed. The second bolt rod 14 passes through the connecting plate 9 and is connected to the threaded sleeve 13.

[0026] As Figures 1-2 and Figure 4 shown in the figure, the clamping member 2 and the fastening assembly 1 are installed on the bottom of the flange plate 7 in a one-to-one correspondence, and the connecting plate 9 is detachably connected to the fastening assembly 1; in case of special circumstances, such as when the construction load on the upper part of the support structure is large, multiple fastening assemblies 1 can be used to fasten one clamping member 2; the clamping member 2 includes a connecting plate 9 and a U-shaped plate 10. The connecting plate 9 is detachably installed on the bottom of the flange plate 7 through the fastening assembly 1. The connecting plate 9 and the U-shaped plate 10 are fixedly connected. The inner groove of the U-shaped plate 10 opens upward. A first bolt rod 8 is provided at the bottom of the U-shaped plate 10. A longitudinal rod 3 is embedded in the groove of the U-shaped plate 10. The first bolt rod 8 passes through the U-shaped plate 10 and abuts against the longitudinal rod 3. The U-shaped plate 10 includes a first side plate 11, a bottom plate and a second side plate 12. The upper end of the side surface of the first side plate 11 close to the precast beam 6 is fixedly connected to the connecting plate 9. A bottom plate is fixedly connected between the bottoms of the first side plate 11 and the second side plate 12. The bottoms of the first side plate 11, the second side plate 12 and the bottom plate are on the same horizontal plane; the height of the second side plate 12 is not greater than the height of the longitudinal rod 3 and not less than half of the height of the longitudinal rod 3. The height of the first side plate 11 is not less than the total height of the longitudinal rod 3, the cross rod 4 and the bottom formwork 5, and the height of the first side plate 11 should not be too high so as not to affect the limiting function of the second side plate 12 on the longitudinal rod 3.

[0027] As Figure 1As shown in the figure, vertical bars 3 are installed on multiple clamping members 2 on the same side of the flange plate 7; at least two clamping members 2 are required to support one vertical bar 3 when installing the vertical bar 3. The two sides of the top surface of the bottom formwork 5 are abutted against the bottom surface of the flange plate 7 between two adjacent precast beams 6. Sponge strips are clamped at the positions where the two sides of the top surface of the bottom formwork 5 are in contact with the bottom surface of the flange plate 7. Cross bars 4 are placed at the positions corresponding to the clamping members 2 at the bottom of the bottom formwork 5 one by one. The two ends of the cross bar 4 are respectively placed on the vertical bars 3 on both sides. The length of the vertical bar 3 is the distance between two adjacent clamping members 2. The vertical bar 3 and the cross bar 4 are placed vertically and staggeredly. When the installation is completed, when the first bolt rod 8 is rotated and tightened, the first bolt rod 8 moves upward, and at the same time drives the upper vertical bar 3, the cross bar 4 and the bottom formwork 5 to be lifted. The first bolt rod 8 cooperates with the flange plate 7 to firmly clamp the vertical bar 3, the cross bar 4 and the bottom formwork 5; the vertical bar 3 and the cross bar 4 are made of square timbers, and the bottom formwork 5 is made of multi-layer boards. Embodiment 2

[0028] As Figures 1-3 and Figure 5 As shown in the figure, a support structure for bridge engineering construction, including a fastening assembly 1, a clamping member 2, a vertical bar 3, a cross bar 4, a bottom formwork 5 and a precast beam 6. Flange plates 7 are provided on both sides of the precast beam 6. A plurality of fastening assemblies 1 are respectively arranged along the length direction of the bottom surface of the flange plate 7 between two adjacent precast beams 6. The fastening assemblies 1 under the same flange plate 7 are in a group, and the fastening assemblies 1 in the same group are arranged at equal intervals along the length direction of the flange plate 7. The interval should be determined according to the force of the support structure. The fastening assembly 1 includes a threaded sleeve 13 and a second bolt rod 14. The threaded sleeve 13 is embedded in the lower surface of the flange plate 7. The threaded sleeve 13 is fixed to the steel bars of the precast beam 6 in advance during the precasting process of the precast beam 6. After being firmly fixed, the upper end opening of the threaded sleeve 13 should be sealed. The second bolt rod 14 passes through the connecting plate 9 and is connected to the threaded sleeve 13. The threaded opening of the threaded sleeve is located at the bottom surface of the flange plate 7.

[0029] As Figures 1-2 and Figure 4As shown in the figure, the card components 2 and the fastening components 1 are installed at the bottom of the flange plate 7 in a one-to-one correspondence, and the connecting plate 9 is detachably connected to the fastening component 1; when the construction load on the upper part of the support structure is large, two fastening components 1 can be used to fasten one card component 2; the card component 2 includes a connecting plate 9 and a U-shaped plate 10, the connecting plate 9 is detachably installed at the bottom of the flange plate 7 through the fastening component 1, the connecting plate 9 and the U-shaped plate 10 are fixedly connected, the inner groove of the U-shaped plate 10 opens upward, a first bolt rod 8 is arranged at the bottom of the U-shaped plate 10, a longitudinal rod 3 is embedded in the groove of the U-shaped plate 10, the first bolt rod 8 penetrates through the U-shaped plate 10 and abuts against the longitudinal rod 3, the U-shaped plate 10 includes a first side plate 11, a bottom plate and a second side plate 12, the upper end of the side surface of the first side plate 11 close to the precast beam 6 is fixedly connected to the connecting plate 9, a bottom plate is fixedly connected between the bottoms of the first side plate 11 and the second side plate 12, the height of the second side plate 12 is not greater than the height of the longitudinal rod 3 and not less than half of the height of the longitudinal rod 3, the height of the first side plate 11 is not less than the total height of the longitudinal rod 3, the cross bar 4 and the bottom form 5, and the height of the first side plate 11 should not be too high so as not to affect the limiting function of the second side plate 12 on the longitudinal rod 3, and the bottoms of the first side plate 11, the second side plate 12 and the bottom plate are on the same horizontal plane.

[0030] As Figure 1 shown, longitudinal rods 3 are installed on multiple card components 2 on the same side of the flange plate 7; when installing the longitudinal rods 3, at least two card components 2 are required to support one longitudinal rod 3 at the same time, the top surfaces on both sides of the bottom form 5 abut against the bottom surfaces of the flange plates 7 between two adjacent precast beams 6, sponge strips are clamped at the positions where the top surfaces on both sides of the bottom form 5 abut against the bottom surfaces of the flange plates 7, cross bars 4 are placed at the positions corresponding to the card components 2 at the bottom of the bottom form 5, both ends of the cross bar 4 are respectively placed on the longitudinal rods 3 on both sides, the length of the longitudinal rod 3 is the distance between two adjacent card components 2, the longitudinal rod 3 and the cross bar 4 are placed vertically and alternately, when the installation is completed, when the first bolt rod 8 is rotated and tightened, the first bolt rod 8 moves upward, and at the same time drives the upper longitudinal rod 3, cross bar 4 and bottom form 5 to be jacked up, and the first bolt rod 8 cooperates with the flange plate 7 to firmly clamp the longitudinal rod 3, cross bar 4 and bottom form 5; the longitudinal rod 3 and the cross bar 4 are made of square timbers, and the bottom form 5 is made of multi-layer boards or other available materials.

[0031] The working principle of the present utility model: during installation, the second bolt rod 14 penetrates through the connecting plate 9 and is threadedly connected to the threaded sleeve 13, the second bolt rod 14 is tightened to connect the card component 2 to the flange plate 7, then the longitudinal rod 3, cross bar 4 and bottom form 5 are arranged above the first bolt rod 8 in sequence, and then the first bolt rod 8 is tightened to fasten the support structure, and then the next construction process can be carried out; after the construction is completed, the second bolt rod 14 is loosened to unlock the support structure, the bottom form 5, cross bar 4 and longitudinal rod 3 are removed in sequence, and finally the card component 2 and the second bolt rod 14 are removed.

[0032] In summary, by providing the fastening assembly 1, the clamping member 2, the longitudinal rod 3, the cross rod 4, and the bottom formwork 5, the utility model realizes the purpose that only one worker is required to construct on the precast beam 6 during construction, the workpiece does not need to pass through the bottom formwork 5 during installation, the service life of the bottom formwork 5 is increased, and the cost is reduced; by providing the clamping member 2 to support the bottom formwork 5, connection and fixation do not need to be carried out through bolts, so that the precast beam 6 does not need to be secondarily plugged with bolt holes after construction is completed, and the work content is simplified.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments, and what is described in the above-mentioned embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all such changes and improvements fall within the scope of the present utility model claimed.

Claims

1. A support structure for bridge construction, comprising a fastening assembly (1), a clamp (2), a longitudinal rod (3), a transverse rod (4), a bottom formwork (5) and a prefabricated beam (6), characterized in that: Flange plates (7) are provided on both sides of the precast beams (6); a plurality of clamps (2) are provided on the bottom surface of the flange plates (7) between two adjacent precast beams (6) along the length direction thereof via a fastening assembly (1); longitudinal bars (3) are installed on the clamps (2) on the same side; and bottom templates (5) and cross bars (4) are provided in sequence from top to bottom between adjacent longitudinal bars (3) and flange plates (7); and two ends of the cross bars (4) are respectively placed on corresponding longitudinal bars (3).

2. A supporting structure for bridge engineering construction according to claim 1, characterized in that: The clamp (2) comprises a connecting plate (9) and a U-shaped plate (10); the connecting plate (9) is detachably mounted on the bottom of the flange plate (7) via a fastening assembly (1); the connecting plate (9) and the U-shaped plate (10) are fixedly connected; the inner groove of the U-shaped plate (10) opens upward; a first bolt rod (8) is provided at the bottom of the U-shaped plate (10); the longitudinal rod (3) is embedded in the groove of the U-shaped plate (10); the first bolt rod (8) passes through the U-shaped plate (10) and abuts against the longitudinal rod (3).

3. A supporting structure for bridge engineering construction according to claim 2, characterized in that: The fastening assembly (1) comprises a threaded sleeve (13) and a second bolt rod (14); the threaded sleeve (13) is embedded in the lower surface of the flange plate (7); and the second bolt rod (14) passes through the connecting plate (9) and is connected to the threaded sleeve (13).

4. A supporting structure for bridge construction according to claim 2, characterized in that: The U-shaped plate (10) comprises a first side plate (11), a bottom plate and a second side plate (12); the first side plate (11) is fixedly connected to the connecting plate (9) at an upper end of a side surface close to the precast beam (6); a bottom plate is fixedly connected between the bottoms of the first side plate (11) and the second side plate (12); and the bottoms of the first side plate (11), the second side plate (12) and the bottom plate are on the same horizontal plane.

5. The supporting structure for bridge engineering construction according to claim 1, characterized in that: Sponge strips are clamped at the positions where the top surfaces of the bottom template (5) and the bottom surfaces of the flange plates (7) abut against each other.

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