Prestressed concrete box girder support embedded steel plate construction control device

Abstract

The utility model discloses a prestressed concrete box girder support pre-embedded steel plate construction control device which comprises a bottom die support, a supporting outer frame, a pre-embedded steel plate, a support anchor and a pre-embedded sleeve, the supporting outer frame is arranged at the top of the bottom die support, a clamping plate is connected between the bottom die support and the supporting outer frame, a connecting plate is arranged on the inner wall of the bottom of the supporting outer frame, and the pre-embedded steel plate is connected with the supporting outer frame. The bottom of the supporting outer frame is further connected with a supporting strip, an embedded steel plate is arranged on the inner side of the supporting outer frame, the supporting outer frame and the embedded steel plate are provided with connecting pins and connecting holes, the connecting pins of the supporting outer frame are connected with the connecting holes of the embedded steel plate in a penetrating and inserting mode, and the bottom of the bottom die support is connected with a plurality of support anchors. And a plurality of embedded sleeves are arranged on the embedded steel plate. According to the utility model, the pre-embedded steel plate for construction is supported through the bottom die support, so that the pre-embedded steel plate is prevented from deforming and sinking in the construction process; the embedded steel plate is fixed through mutual cooperation of the support anchor and the embedded sleeve, and looseness caused in the concrete pouring and vibrating process is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of prestressed concrete box girder construction equipment, in particular to a prestressed concrete box girder support embedded steel plate construction control device. Background Art

[0002] With the comprehensive and rapid development of my country's economy and society, my country's construction industry has developed unprecedentedly, infrastructure construction has blossomed all over the country, and the construction of cross-river and cross-sea bridges has become an inevitable development trend of my country's road network construction. Whole-hole prefabrication and whole-hole erection construction technologies have been widely used in the construction of major bridges. In the process of box girder prefabrication, pre-embedding of support steel plates is a necessary construction procedure. The most commonly used construction method is to use wooden strips to wedge the support pre-embedded steel plates onto the bottom formwork before the steel bars of the box girder main structure are hoisted.

[0003] However, using wooden strips to fix the embedded steel of the fixed support has the following problems: the embedded steel plate of the support is easily deformed during the construction process, making it difficult to meet the requirements of the specifications; it is easy to loosen during the main structure steel bar lifting, concrete pouring and vibration process, affecting the quality of the box girder and increasing the cost of later processing of the box girder. Summary of the invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a construction control device for embedded steel plates of prestressed concrete box girder supports, which solves the problems that the embedded steel plates of the supports are easily deformed during the construction process, making it difficult to meet the requirements of the specifications, and the embedded steel plates are prone to loosening during the construction process.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a construction control device for embedded steel plates of prestressed concrete box girder supports, comprising a bottom mold support, a splint, a support outer frame, an embedded steel plate, a support anchor and an embedded sleeve, wherein a support outer frame is provided on the top of the bottom mold support, a splint is provided between the bottom mold support and the support outer frame, the support outer frame comprises a connecting plate, the connecting plate is arranged on the inner wall of the bottom of the support outer frame, a connecting pin is connected to the connecting plate, a support bar is also connected to the bottom of the support outer frame, an embedded steel plate is provided on the inner side of the support outer frame, a plurality of connecting holes are opened on the embedded steel plate, the embedded steel plate is used to be installed in the cavity of the support outer frame, and is connected through the connecting pins of the support outer frame and the connecting holes of the embedded steel plate, a plurality of support anchors are connected to the bottom of the bottom mold support, a plurality of embedded sleeves are provided on the embedded steel plate, and the embedded steel plate is fixed by the cooperation between the support anchor and the embedded sleeve.

[0006] Preferably, the bottom mold support further includes a support rib gap, the bottom mold support is provided with a support rib gap, and the supporting outer frame is installed in the support rib gap of the bottom mold support.

[0007] Preferably, the supporting outer frame further comprises a leveling top screw and a side rubber plate, a plurality of leveling top screws are connected to the bottom of the supporting outer frame, and side rubber plates are connected to both sides of the supporting outer frame.

[0008] Preferably, the support anchor also includes a gasket, and a gasket is provided on the periphery of the lower part of the support anchor.

[0009] Preferably, the bottom mold support also includes a slide groove, a plurality of slide grooves are opened at the bottom of the bottom mold support, and the support anchor bottom is embedded in the slide groove for sliding.

[0010] Preferably, the splint also includes a slide groove, a positioning nut and an adjusting bolt. There are several splints in total, and the several splints are distributed below the supporting outer frame. Slide grooves are provided on the splints at both ends of the bottom of the supporting outer frame. Positioning nuts are welded to the bottom of the several splints, and the inner threads of the positioning nuts are connected to the adjusting bolts, and the adjusting bolts are arranged at the bottom of the embedded steel plate.

[0011] Preferably, a rubber pad is connected between the embedded steel plate and the adjusting bolt, a cavity is opened in the rubber pad, and the leveling top screw and the lower three quarters of the adjusting bolt shaft are provided with external threads, and the upper quarter of the shaft is provided with a smooth round rod, and the heads of the leveling top screw and the smooth round rod of the adjusting bolt shaft are embedded in the cavity of the rubber pad.

[0012] Compared with the existing technology, the utility model has the following beneficial effects: the utility model is installed inside the supporting outer frame through the embedded steel plate, and the connecting pin of the supporting outer frame is inserted and connected with the connecting hole of the embedded steel plate, so that the embedded steel plate is stuck inside the supporting outer frame, and when the embedded steel plate is poured during construction, the supporting bar of the supporting outer frame supports the embedded steel plate to prevent the embedded steel plate from deforming and sinking during the pouring process; the support anchor is inserted from the bottom of the bottom mold support to the top of the bottom mold support and the embedded steel plate from the bottom to the top, and the embedded sleeve is aligned with the support anchor and rotated from top to bottom to be sleeved on the top of the embedded sleeve, and the embedded steel plate is fixed by the cooperation of the support anchor and the embedded sleeve to prevent it from loosening during the lifting of the main structure steel bars, concrete pouring and vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the top plan structure of the bottom mold support of this utility model.

[0014] Figure 2 This is a schematic diagram of the planar structure of the connection between the bottom mold support and the supporting outer frame of this utility model.

[0015] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of the supporting outer frame and embedded steel plates of this utility model.

[0016] Figure 4 Schematic diagram of the plane structure of the bottom surface of the bottom mold support and the support anchor connection of this utility model

[0017] Figure 5 The utility model is a schematic diagram of the plane structure of the connection between the adjusting bolt and the rubber pad.

[0018] Markings in the figure: 1. Bottom mold support, 101. Support rib gap, 102. Slide groove, 2. Clamp, 3. Support outer frame, 31. Connecting plate, 32. Connecting pin, 33. Support bar, 4. Embedded steel plate, 41. Connecting hole, 5. Support anchor, 51. Gasket, 6. Embedded sleeve, 71. Adjusting bolt, 72. Positioning nut, 73. Rubber pad, 7301. Cavity, 8. Leveling top screw. DETAILED DESCRIPTION

[0019] like Figure 1-Figure 5 As shown in the figure; the utility model provides a technical solution: a prestressed concrete box girder support embedded steel plate construction control device, including a bottom mold support 1, a clamping plate 2, a support outer frame 3, an embedded steel plate 4, a support anchor 5 and an embedded sleeve 6; the bottom mold support 1 is provided with a support outer frame 3 on the top, a clamping plate 2 is provided between the bottom mold support 1 and the support outer frame 3, the support outer frame 3 includes a connecting plate 31, the connecting plate 31 is arranged on the inner wall of the bottom of the support outer frame 3, a connecting pin 32 is connected to the connecting plate 31, the bottom of the support outer frame 3 is also connected to a support bar 33, and the inner side of the support outer frame 3 is provided with The embedded steel plate 4 is made of 28mm steel plate, and a plurality of connecting holes 41 are provided on the embedded steel plate 4. The embedded steel plate 4 is used to be installed in the cavity of the supporting outer frame 3, and the connecting pin 32 of the supporting outer frame 3 is inserted and connected with the connecting hole 41 of the embedded steel plate 4. A plurality of support anchors 5 are connected to the bottom of the bottom mold support 1, and a plurality of embedded sleeves 6 are provided on the embedded steel plate 4. The embedded steel plate 4 is fixed by the support anchor 5 and the embedded sleeve 6. Since the support embedded steel plate 4 is easily deformed during the construction process, and the main structure steel bar hoisting and concrete It is easy to loosen during pouring and vibrating; before construction, first install the support outer frame 3 in the support rib gap 101 of the bottom mold support 1, align the connecting hole 41 of the embedded steel plate 4 with the connecting pin 32 of the support outer frame 3, install the embedded steel plate 4 inside the support outer frame 3, and connect the connecting pin 32 with the connecting hole 41 so that the embedded steel plate 4 is stuck in the support outer frame 3. After the support outer frame 3 and the embedded steel plate 4 are installed, insert the support anchor 5 from the bottom of the bottom mold support 1 to the top through the top of the bottom mold support 1 and the embedded steel plate 4, and install the embedded steel plate 4. The embedded sleeve 6 is aligned with the support anchor 5 and rotated from top to bottom to be sleeved on the top of the embedded sleeve 6. The support anchor 5 and the embedded sleeve 6 cooperate with each other to fix the embedded steel plate 4 to prevent loosening during the main structure steel bar lifting, concrete pouring and vibration process. After the support outer frame 3 is installed in the support rib gap 101, the gap between them can be filled with steel plates and fixed by welding; and when the embedded steel plate 4 is poured during construction, the support bar 33 of the support outer frame 3 supports the embedded steel plate 4 to prevent the embedded steel plate 4 from deforming and concave during the pouring process.

[0020] Furthermore, the bottom mold support 1 further comprises a support rib gap 101 . The bottom mold support 1 is provided with a support rib gap 101 , and the support outer frame 3 is installed in the support rib gap 101 of the bottom mold support 1 .

[0021] Furthermore, the supporting outer frame 3 further comprises a leveling top screw 8 and a side rubber plate. The bottom of the supporting outer frame 3 is connected to a plurality of leveling top screws 8 , and both sides of the supporting outer frame 3 are connected to side rubber plates.

[0022] Furthermore, the leveling top screw 8 is welded to the clamping plates 2 at both ends of the bottom of the supporting outer frame 3 , and the head of the leveling top screw 8 is in contact with the bottom of the supporting outer frame 3 , so that the supporting outer frame 3 is supported by the leveling top screw 8 .

[0023] Furthermore, the support anchor 5 also includes a gasket 51, and a gasket 51 is provided on the outer periphery of the lower part of the support anchor 5; if it is necessary to adjust the inclination of the embedded steel plate 4, the leveling top screw 8 at one end of the bottom of the support outer frame 3 can be rotated so that the leveling top screw 8 drives the support outer frame 3 and one end of the embedded steel plate 4 to move upward, so that the support outer frame 3 and the embedded steel plate 4 are in an inclined state, and while one end of the support outer frame 3 moves upward, it also drives the side rubber plate to move from bottom to top, so that the side rubber plate protects the support outer frame 3 and the bottom mold support 1, thereby preventing the corner edge of the support outer frame 3 from rubbing against the corner edge of the bottom mold support 1 when the angle of the support outer frame 3 is adjusted.

[0024] Furthermore, the bottom mold support 1 also includes a slide groove 102, and a plurality of slide grooves 102 are opened at the bottom of the bottom mold support 1, and the bottom of the support anchor 5 is embedded in the slide groove 102 for sliding; if it is necessary to adjust the inclination angle of the support outer frame 3 and the embedded steel plate 4, the support anchor 5 is firstly rotated and screwed out from the embedded sleeve 6 of the embedded steel plate 4 from top to bottom, and after the support anchor 5 and one end of the embedded steel plate 4 are lifted to a certain inclination by the leveling screw 8, the bottom of the support anchor 5 is moved along the slide groove 102 of the bottom mold support 1 and the clamping plate 2, so that the support anchor 5 is tilted as a whole, and the tilt angle corresponds to the tilt angle of the support anchor 5 and the embedded steel plate 4, the support anchor 5 is rotated and screwed into the embedded sleeve 6 of the embedded steel plate 4 from bottom to top again, and the support outer frame 3 and the embedded steel plate 4 with adjusted tilt angle are fixed. After the support outer frame 3 and the embedded steel plate 4 are installed in the support rib gap 101, after the inclination is adjusted, the gap between the support outer frame 3 and the support rib gap 101 can be filled with steel plates and fixed by welding.

[0025] Furthermore, the splint 2 also includes a slide groove, a positioning nut 72 and an adjustment bolt 71. There are a number of splints 2 in total, and the splints 2 are distributed below the supporting outer frame 3. Slide grooves are provided on the splints 2 at both ends of the bottom of the supporting outer frame 3. Positioning nuts 72 are welded to the bottom of the several splints 2. The positioning nuts 72 are threadedly connected to the adjustment bolts 71. The adjustment bolts 71 are arranged at the bottom of the embedded steel plate 4.

[0026] Furthermore, a rubber pad 73 is connected between the embedded steel plate 4 and the adjusting bolt 71, and a cavity 7301 is opened in the rubber pad 73, and the lower three-quarters of the shaft of the leveling top screw 8 and the adjusting bolt 71 are provided with external threads, and the upper quarter of the shaft is provided with a smooth round rod, and the heads of the smooth round rods of the leveling top screw 8 and the adjusting bolt 71 are embedded in the cavity 7301 of the rubber pad 73; if the embedded steel plate 4 is concave after the construction, the adjusting bolt 71 can be rotated to adjust the leveling top screw 8 and the adjusting bolt 71. The bolt 71 rotates from bottom to top to lift up the concave part of the embedded steel plate 4. The height of the adjustment bolt 71 can be adjusted by rotating to quickly solve the problem of the concave embedded steel plate 4 without damaging the bottom mold support 1 in the process. At the same time, since the adjustment bolt 71 is provided with a rubber pad 73, when solving the problem of the concave embedded steel plate 4, the rubber pad 73 can play a protective effect on the embedded steel plate 4 to prevent the adjustment bolt 71 from rubbing against the bottom of the embedded steel plate 4 during rotation, causing damage to the embedded steel plate 4.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention; the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction control device for embedded steel plates in a prestressed concrete box beam support, comprising a bottom form support (1), a clamping plate (2), a support outer frame (3), an embedded steel plate (4), a support anchor (5) and an embedded sleeve (6), characterized in that: The top of the bottom mold support (1) is provided with a support outer frame (3), a clamping plate (2) is provided between the bottom mold support (1) and the support outer frame (3), the support outer frame (3) comprises a connecting plate (31), the connecting plate (31) is arranged on the inner wall of the bottom of the support outer frame (3), a connecting pin (32) is connected to the connecting plate (31), the bottom of the support outer frame (3) is also connected to a support bar (33), an embedded steel plate (4) is provided inside the support outer frame (3), and the embedded steel plate (4 ) is provided with a plurality of connection holes (41), the embedded steel plate (4) is used to be installed in the cavity of the supporting outer frame (3), and is connected through the connecting pins (32) of the supporting outer frame (3) and the connecting holes (41) of the embedded steel plate (4), the bottom of the bottom mold support (1) is connected with a plurality of support anchors (5), and the embedded steel plate (4) is provided with a plurality of embedded sleeves (6), and the embedded steel plate (4) is fixed by the support anchors (5) and the embedded sleeves (6) cooperating with each other.

2. A prestressed concrete box girder support embedded steel plate construction control device according to claim 1, characterized in that: The bottom mold support (1) further comprises a support rib gap (101); the bottom mold support (1) is provided with a support rib gap (101); and the supporting outer frame (3) is installed in the support rib gap (101) of the bottom mold support (1).

3. A construction control device for embedded steel plates of prestressed concrete box beam supports according to claim 2, characterized in that: The supporting outer frame (3) further comprises a leveling top screw (8) and a side rubber plate. The bottom of the supporting outer frame (3) is connected to a plurality of leveling top screws (8), and both sides of the supporting outer frame (3) are connected to the side rubber plates.

4. A construction control device for embedded steel plates of prestressed concrete box beam supports according to claim 3, characterized in that: The support anchor (5) further comprises a gasket (51), and a gasket (51) is arranged on the periphery of the lower part of the support anchor (5).

5. A construction control device for embedded steel plates of prestressed concrete box beam supports according to claim 4, characterized in that: The bottom mold support (1) also includes a slide groove (102). A plurality of slide grooves (102) are provided at the bottom of the bottom mold support (1), and the bottom of the support anchor (5) is embedded in the slide groove (102) for sliding.

6. A construction control device for embedded steel plates in prestressed concrete box beam supports according to claim 5, characterized in that: The clamping plate (2) further comprises a slide groove, a positioning nut (72) and an adjusting bolt (71). The clamping plates (2) are provided with a plurality of pieces. The plurality of clamping plates (2) are distributed and arranged below the supporting outer frame (3). The clamping plates (2) at both ends of the bottom of the supporting outer frame (3) are provided with slide grooves. The bottoms of the plurality of clamping plates (2) are welded with positioning nuts (72). The positioning nuts (72) are internally threadedly connected with adjusting bolts (71). The adjusting bolts (71) are arranged at the bottom of the embedded steel plate (4).

7. A construction control device for embedded steel plates of prestressed concrete box beam supports according to claim 6, characterized in that: A rubber pad (73) is also connected between the embedded steel plate (4) and the adjusting bolt (71), a cavity (7301) is provided in the rubber pad (73), and the lower three quarters of the shaft of the leveling top screw (8) and the adjusting bolt (71) are provided with external threads, and the upper quarter of the shaft is provided with a smooth round rod, and the heads of the smooth round rods of the leveling top screw (8) and the adjusting bolt (71) are embedded in the cavity (7301) of the rubber pad (73).

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