Vertical prestressed steel bar positioning and anti-collision frame suitable for double-layer structure

Abstract

The utility model discloses a vertical pre-stressed steel bar positioning and anti-collision frame suitable for a double-layer structure, which comprises a steel bar positioning plate and a steel bar positioning plate which are shaped like a Chinese character'hui 'and are both provided with scale marks, the steel bar positioning plate is of a detachable combined structure, and the internal width of the steel bar positioning plate is adjustable so as to be suitable for various arrangement forms such as longitudinal or transverse arrangement forms of steel bars. The steel bar positioning plate and the steel bar positioning plate are reliably connected through the positioning plate connecting piece or directly through a bolt so as to be suitable for positioning of steel bars in different construction stages, and the steel bar positioning clamp is fixed to the steel bar positioning plate and used for being clamped and fixed to an upper structure steel bar. Precise control over the distance between the steel bars is achieved through the steel bar positioning plates and the positioning clamps, the steel bars are limited through the steel bar positioning plates, the situation that the tensioning ends of the steel bars collide with the steel bars is avoided, and meanwhile the plane position and perpendicularity of the steel bars are effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to prestressed construction technical field especially relates to a vertical prestressed steel bar positioning and anti -collision frame suitable for double -deck structure. BACKGROUND

[0002] Vertical prestressed steel bar is widely used in the consolidation of double -deck structure in bridge engineering, such as between cap and pier column, between pier column and bent cap or between cap and bent cap when there is no pier column. When vertical prestressed steel bar is applied, the number of steel bars is generally more and the length is longer. According to the existing design and construction case, a special steel bar positioning device is not used in the current construction process, which leads to the conditions that the position of steel bar is easily deviated, the perpendicularity is poor and the tensioning end and the upper structure reinforcement conflict, resulting in excessive prestress loss and failing to meet the original design requirements. Therefore, a special positioning frame is needed, which not only limits the position of steel bar, but also limits the upper structure reinforcement, realizes the accurate positioning of steel bar and the perpendicularity meeting the requirements, and avoids the conflict between the tensioning end of steel bar and the upper structure reinforcement. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model provides a vertical prestressed steel bar positioning and anti -collision frame suitable for double -deck structure for limiting the position of prestressed steel bar and upper structure reinforcement, realizing the accurate positioning of steel bar and the perpendicularity meeting the requirements, and avoiding the conflict between the tensioning end of steel bar and the upper structure reinforcement.

[0004] The utility model realizes the above technical purpose through the following technical scheme.

[0005] A vertical prestressed steel bar positioning and anti -collision frame suitable for double -deck structure, including the reinforcement positioning plate that is " back " shape and all along length direction is provided with scale line, steel bar positioning plate, wherein, steel bar is inserted and is installed fixed in steel bar positioning plate, realizes positioning through scale line, steel bar positioning plate is adjustable detachable structure, by concave steel bar positioning plate B and long strip board shape steel bar positioning plate A is combined by bolt and accessory, still include the reinforcement positioning card that is used in the upper structure construction stage with reinforcement positioning plate is used in match, the positioning plate connecting piece that is used for realizing the connection of reinforcement positioning plate and steel bar positioning plate, lower structure construction stage, reinforcement positioning plate and steel bar positioning plate are connected through bolt and accessory, and reinforcement positioning plate both ends are installed with the temporary support bolt of positioning frame, and the temporary support steel bar of positioning frame is welded below the temporary support steel bar of positioning frame, and the main reinforcement of lower structure is welded with the temporary support steel bar of positioning frame.

[0006] Further, the steel bar positioning plate B is located below the steel bar positioning plate A, the steel bar positioning plate B is a concave structure, long holes are formed in the width direction at both ends of the steel bar positioning plate B, the steel bar positioning plate A is a long strip plate structure with mounting holes formed at both ends, and the steel bar positioning plate A is fixed at both ends of the long hole of the steel bar positioning plate B through bolts.

[0007] Further, the steel bar positioning plate A and the steel bar positioning plate B are provided with a sawtooth structure on the outer side, which is used for binding connection of the steel bar positioning plate and the steel bar, and the steel bar is limited.

[0008] Further, the steel bar positioning plate A and the steel bar positioning plate B are provided with a sawtooth structure on the outer side, which is used for binding connection of the steel bar positioning plate and the steel bar, and the steel bar is limited.

[0009] Further, the steel bar positioning plate A and the steel bar positioning plate B are provided with a sawtooth structure on the outer side, which is used for binding connection of the steel bar positioning plate and the steel bar, and the steel bar is limited.

[0010] The utility model has the advantages of the following beneficial effects:

[0011] The vertical pre-stressed steel bar positioning and conflict prevention frame is designed, the position deviation of the steel bar, the poor verticality and the conflict between the tensioning end and the upper structure main reinforcement in the construction process of the prior art are effectively solved, the accurate positioning of the steel bar is realized, the verticality of the steel bar is ensured to meet the requirements, and the conflict between the tensioning end of the steel bar and the upper structure reinforcement is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a steel bar positioning plate plane schematic view that the utility model discloses a steel bar positioning plate plane schematic view;

[0013] Figure 2 It is a steel bar positioning plate installation plane schematic view that the utility model discloses a steel bar positioning plate installation plane schematic view;

[0014] Figure 3 It is a steel bar positioning plate installation side surface schematic view that the utility model discloses a steel bar positioning plate installation side surface schematic view;

[0015] Figure 4 It is a steel bar positioning plate installation side surface schematic view that the utility model discloses a steel bar positioning plate installation side surface schematic view;

[0016] Figure 5 It is a steel bar positioning plate installation side surface schematic view that the utility model discloses a steel bar positioning plate installation side surface schematic view;

[0017] Figure 6 It is a steel bar positioning plate installation side surface schematic view that the utility model discloses a steel bar positioning plate installation side surface schematic view;

[0018] Figure 7 This is the elevation view of the positioning and anti-conflict rack of the present utility model during the construction stage of the lower structure;

[0019] Figure 8 This is the elevation view of the positioning and anti-conflict rack of the present utility model during the construction stage of the upper structure.

[0020] In the figure: 1 - steel bar positioning plate, 2 - steel bar positioning plate A, 3 - steel bar positioning plate B, 4 - scale line, 5 - steel bar positioning card, 6 - positioning plate connecting part, 7 - steel bar, 8 - temporary support bolt for positioning rack, 9 - temporary support steel bar for positioning rack, 10 - bolt, 11 - nut, 12 - lower gasket, 13 - upper gasket, 14 - steel bar of upper structure. Specific implementation mode

[0021] The present utility model will be further described below in conjunction with the attached drawings and specific embodiments, but the protection scope of the present utility model is not limited thereto.

[0022] As Figures 1 to 8 shown, the vertical prestressed steel bar positioning and anti-conflict rack applicable to the double-layer structure of the present utility model includes a steel bar positioning plate 1, a steel bar positioning plate A 2, a steel bar positioning plate B 3, a steel bar positioning card 5, a positioning plate connecting part 6, a temporary support bolt 8 for the positioning rack and the supporting bolts 10, nuts 11 and gaskets.

[0023] As Figure 1 shown, the steel bar positioning plate 1 is a long and narrow "return" - shaped steel plate, and the long strip hole inside it is used for fixed connection of the bolt 10 in any length direction. A scale line 4 is also marked along the length direction on one side of the steel bar positioning plate 1, which is used for controlling the spacing of the subsequent steel bar positioning cards 5.

[0024] As Figure 2 、 3As shown, the steel bar positioning plate is a "hui" shaped structure, which includes two narrow and long steel bar positioning plates A2 and a steel bar positioning plate B3. The steel bar positioning plate A2 and the steel bar positioning plate B3 are assembled and fixed at both ends by bolts 10, nuts 11, upper gaskets 13 and lower gaskets 12 to form a "hui" shaped structure. The "hui" shaped structure is used for limiting the steel bar 7, and the internal width of the "hui" shaped structure is adjustable to adapt to various arrangement forms of the steel bar 7 in the longitudinal or transverse direction. The "hui" shaped structure is marked with a scale line 4 along the length direction for controlling the spacing of the steel bar 7. Specifically, the steel bar positioning plate B3 is located below the steel bar positioning plate A2. The steel bar positioning plate B3 is similar to a concave shaped structure, and long holes are formed at both ends of the steel bar positioning plate B3 along the width direction so that the internal width of the "hui" shaped structure formed by subsequent combination is adjustable. The steel bar positioning plate A2 is a long strip plate structure, and mounting holes are formed at both ends of the steel bar positioning plate A2. The steel bar positioning plate A2 is fixed at the long hole positions of both ends of the steel bar positioning plate B3 by bolts 10 and corresponding accessories, and the fixed position is adjustable, that is, the internal width of the "hui" shaped structure formed by combination is adjustable, and the steel bar positioning plate A2 is marked with a scale line 4 along the length direction. The outer sides of the steel bar positioning plate A2 and the steel bar positioning plate B3 are provided with sawtooth structures for reliable binding of the steel bar positioning plate and the steel bar 7 by subsequent wire binding, and limiting the steel bar 7.

[0025] As shown in Figure 4 , 6 , in actual application, the steel bar positioning card 5 is used with the steel bar positioning plate 1 during the construction stage of the upper structure. The steel bar positioning card 5 adopts a "U" shaped steel plate, which is connected with the steel bar positioning plate 1 by bolts 10, nuts 11, upper gaskets 13 and lower gaskets 12 to accurately control the spacing of the upper structure steel bar 14.

[0026] As shown in Figure 5 , 7 , 8, in actual application, the positioning plate connecting piece 6 adopts a "[" shaped steel plate, which reliably connects the steel bar positioning plate 1 and the steel bar positioning plate by bolts 10, nuts 11, upper gaskets 13 and lower gaskets 12 during the construction stage of the upper structure. The purpose is to sink the steel bar positioning plate to avoid the conflict between the steel bar positioning plate and the upper structure steel bar 14 and the tensioning end of the steel bar 7, and to realize the whole process control of the position and perpendicularity of the steel bar 7.

[0027] As shown in Figure 7 , in actual application, the steel bar positioning plate 1 and the steel bar positioning plate are reliably connected by bolts 10, nuts 11, upper gaskets 13 and lower gaskets 12 during the construction stage of the lower structure, and positioning frame temporary support bolts 8 are installed at both ends of the steel bar positioning plate 1 for lifting and positioning the positioning and conflict prevention frame during the construction of the lower structure. The positioning frame temporary support bolts 8 are relatively long and can be welded and connected with the lower positioning frame temporary support steel bars 9 for multiple times, and the positioning frame temporary support steel bars 9 are reliably welded with the main steel bars of the lower structure.

[0028] As shown in Figures 1 to 8As shown, the utility model discloses a steel bar positioning plate 1, steel bar positioning plate as the main body, steel bar positioning plate 1 and steel bar positioning plate two perpendicular intersection and according to the position arrangement of steel bar 7, adopt positioning plate connecting piece 6 reliable connection of steel bar positioning plate 1 and steel bar positioning plate, install steel bar positioning card 5 on steel bar positioning plate 1 according to the spacing of upper structure steel bar 14, adopt the bolt 10 of matched set, nut 11, gasket reliable connection between each component, form firm frame structure, limit the position of steel bar 7 and upper structure steel bar 14.

[0029] Refer to Figures 1 to 8 The construction application method of the vertical prestressed steel bar positioning and conflict prevention frame suitable for the double-layer structure is as follows:

[0030] S1: in the lower structure construction stage, the positioning and conflict prevention frame is assembled: taking the steel bar positioning plate 1 and the steel bar positioning plate as the main body, first, the internal width of the steel bar positioning plate is determined according to the arrangement of the steel bar 7, then the steel bar positioning plate A2 and the steel bar positioning plate B3 are reliably connected at both ends through the bolt 10, the nut 11, the upper gasket 13 and the lower gasket 12, the steel bar positioning plate 1 and the steel bar positioning plate are reliably connected through the bolt 10, the nut 11, the upper gasket 13 and the lower gasket 12, and a frame structure consistent with the plane arrangement of the steel bar 7 is formed, and then the temporary support bolt 8 of the positioning frame is installed at both ends of the steel bar positioning plate 1; the installation of the positioning plate connecting piece 6 is not involved in this stage.

[0031] S2: in the lower structure construction stage, after the installation of the lower structure steel bar is completed, the position adjustment and fixation of the positioning and conflict prevention frame are carried out before the installation of the prestressed steel bar 7: the plane position of the positioning and conflict prevention frame is determined according to the position of the steel bar 7, the temporary support steel bar 9 of the positioning frame is welded below the temporary support bolt 8 of the positioning frame, the temporary support steel bar 9 of the positioning frame is reliably welded with the main steel bar of the lower structure, the lifting and fixation of the positioning and conflict prevention frame are facilitated, the conflict between the positioning and conflict prevention frame and the lower structure is avoided, and the concrete pouring construction of the lower structure is not affected.

[0032] S3: in the lower structure construction stage, the steel bar 7 is installed, the steel bar 7 is installed by penetrating through the steel bar positioning plate according to the plane design position of the steel bar 7, the position of the steel bar 7 is positioned through the scale line 4, after the position is determined, the prestressed steel bar 7 is firmly bound with the steel bar positioning plate A2 and the steel bar positioning plate B3 by using the binding wire, and the sawtooth structure arranged on the outer side of the steel bar positioning plate A2 and the steel bar positioning plate B3 can avoid the sliding of the binding wire.

[0033] S4: pouring the concrete of the lower structure.

[0034] S5: in the lower structure construction stage, the temporary support bolt 8 of the positioning frame and the temporary support steel bar 9 of the positioning frame are disconnected.

[0035] S6: upper structure construction stage, positioning and anti-collision frame reorganization: the steel bar positioning plate 1 is separated from the steel bar positioning plate, the steel bar positioning plate 1 and the steel bar positioning plate are connected reliably by using the positioning plate connecting piece 6 through the bolt 10, the nut 11, the upper gasket 13 and the lower gasket 12, and then the steel bar positioning card 5 and the steel bar positioning plate 1 are connected reliably through the bolt 10, the nut 11, the upper gasket 13 and the lower gasket 12, and the position of the steel bar positioning card 5 is positioned through the scale line 4 in the process.

[0036] S7: upper structure construction stage, positioning and anti-collision frame fixing: the positioning and anti-collision frame is lifted as a whole first, and then the outermost skeleton steel of the upper structure (i.e. the upper structure steel 14) is installed, the steel bar positioning card 5 is clamped on the upper structure steel 14 after the positioning and installation of the upper structure steel 14 are completed, the plane and vertical position of the positioning and anti-collision frame are fixed, the perpendicularity of the steel bar 7 needs to be reviewed in this step, the deviation is adjusted in time if it is large, and the wire is used to bind and fasten firmly, whether the steel bar 7 is in the middle position of the adjacent steel bar is reviewed, and the position of the steel bar positioning card 5 is adjusted in time if it is eccentric.

[0037] S8: after the positioning and anti-collision frame is fixed, the remaining skeleton steel, the stirrup and the tensioning end of the steel bar 7 of the upper structure are installed in sequence.

[0038] S9: after the tensioning end of the steel bar 7 is positioned, the positioning and anti-collision frame is removed, the bolt connection between the steel bar positioning plate and the positioning plate connecting piece 6 is released first, and then the bolt connection between the steel bar positioning plate A2 and the steel bar positioning plate B3 is released, so that all the components of the positioning and anti-collision frame can be taken out.

[0039] S10: pouring the upper structure concrete, and tensioning the prestressed steel bar 7 after the strength.

[0040] The embodiment is a preferred implementation manner of the utility model, but the utility model is not limited to the above-mentioned implementation manner, any obvious improvement, replacement or modification made by the person skilled in the art without departing from the essential content of the utility model belongs to the protection scope of the utility model.

Claims

1. A vertical prestressed steel rod positioning and anti-collision frame suitable for a double-layer structure, characterized in that, The utility model provides a steel bar positioning plate (1) including a steel bar positioning plate (1) in the shape of a Chinese character '' and provided with scale lines (4) along the length direction, a steel bar positioning plate, a steel bar (7) is inserted and fixed in the steel bar positioning plate and is positioned through the scale lines (4), the steel bar positioning plate is the adjustable detachable structure, and the steel bar positioning plate B (3) in the shape of a Chinese character '' and the long strip board -shaped steel bar positioning plate A (2) are combined through bolt (10) and accessories, and the utility model also includes a steel bar positioning card (5) used in the upper structure construction stage and matched with the steel bar positioning plate (1), a positioning plate connecting piece (6) used for realizing the connection of the steel bar positioning plate (1) and the steel bar positioning plate, in the lower structure construction stage, the steel bar positioning plate (1) is directly connected with the steel bar positioning plate through bolt (10) and accessories, and the steel bar positioning plate (1) is provided with temporary support bolt (8) of positioning frame on both ends, the temporary support bolt (8) of positioning frame is welded with the temporary support steel bar (9) of positioning frame below, and the temporary support steel bar (9) of positioning frame is welded with the main reinforcement of lower structure.

2. The vertical prestressed steel bar positioning and conflict prevention frame suitable for a double-layer structure according to claim 1, characterized in that, The steel bar positioning plate B (3) is located below the steel bar positioning plate A (2), the steel bar positioning plate B (3) is in the shape of a Chinese character '' structure, long strip holes are formed in the width direction of both ends, the steel bar positioning plate A (2) is long strip board -shaped structure with mounting holes in both ends, and the steel bar positioning plate A (2) is fixed in the long strip hole position of both ends of the steel bar positioning plate B (3) through bolt (10).

3. The vertical prestressed steel bar positioning and conflict prevention frame suitable for a double-layer structure according to claim 2, characterized in that, The steel bar positioning plate A (2) and the steel bar positioning plate B (3) are provided with sawtooth structures outside and are used for binding connection of the steel bar positioning plate and the steel bar (7) through wire binding, so as to limit the steel bar (7).

4. The vertical prestressed steel bar positioning and conflict prevention frame suitable for a double-layer structure according to claim 1, characterized in that, The steel bar positioning card (5) is a '' U '' type steel plate, is fixed below the steel bar positioning plate (1) through bolt (10) and accessories and is positioned through scale lines (4), in the upper structure construction stage, the steel bar positioning card (5) is clamped on the upper structure steel bar (14) and realizes the fixation of the horizontal position and the vertical position of the anti -collision frame.

5. The vertical prestressed steel bar positioning and conflict prevention frame suitable for a double-layer structure according to claim 1, characterized in that, The positioning plate connecting piece (6) is a '' [ '' type steel plate, connects the steel bar positioning plate (1) and the steel bar positioning plate through bolt (10) and accessories and is used for sinking the steel bar positioning plate, avoids the conflict of the steel bar positioning plate and the upper structure steel bar (14) and the tensioning end of the steel bar (7), realizes the control of the position and the perpendicularity of the steel bar (7).

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