Template suspension device in middle of superposed beam

Abstract

The utility model relates to the technical field of bridge construction auxiliary devices, in particular to a composite beam middle position formwork suspension device which comprises composite beams, composite beam box chambers are arranged in the composite beams, box chamber supporting assemblies are fixedly installed in the composite beam box chambers, beam bottom protection assemblies are fixedly installed between the composite beams, and the beam bottom protection assemblies are fixedly installed between the composite beams. A bridge deck supporting assembly is arranged above the beam bottom protection assembly and fixedly connected with the superposed beam, side wing supporting assemblies are fixedly connected to the two sides of the superposed beam, and a plurality of fixing assemblies are fixedly connected to the two sides of each side wing supporting assembly. Some existing suspension formwork devices have defects in the aspects of structural design and practicability, in the construction process of a steel-concrete composite beam bridge deck slab, downlink road traffic can be possibly affected, and the requirements for convenient installation and construction safety and quality guaranteeing of suspension devices can not be met possibly.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge construction auxiliary device technical field especially is a kind of superposed beam middle position formwork suspension device. BACKGROUND

[0002] The influence on downlink traffic in cross-road construction has been the key control project in engineering construction, especially in the process of adopting steel-concrete composite beam to construct bridge deck, the traditional formwork support mode such as full-frame support cannot be applied in some cases, for example, the space under bridge is limited, etc. The existing some formwork suspension device has deficiencies in structural design and practicability, and may cause influence on downlink road traffic in steel-concrete composite beam bridge deck construction, and may not meet the requirements of facilitating installation of suspension device and guaranteeing construction safety and quality. SUMMARY

[0003] The main purpose of the utility model is to provide a kind of superposed beam middle position formwork suspension device, to solve the problems that the existing some formwork suspension device in related technology has deficiencies in structural design and practicability, and may cause influence on downlink road traffic in steel-concrete composite beam bridge deck construction, and may not meet the requirements of facilitating installation of suspension device and guaranteeing construction safety and quality.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a kind of superposed beam middle position formwork suspension device is provided, including superposed beam, the superposed beam box chamber is equipped in the superposed beam, box chamber support assembly is fixedly installed in the superposed beam box chamber, beam bottom protection component is fixedly installed between the superposed beam, bridge deck support component is equipped above the beam bottom protection component, the bridge deck support component is fixedly connected with superposed beam, side wing support component is fixedly connected on the both sides of the superposed beam, a plurality of fixed components are fixedly connected on the both sides of the side wing support component.

[0005] Further, the box chamber support assembly at least includes a plurality of disc buckle supports, the disc buckle supports are fixedly installed in the superposed beam box chamber, secondary beams are fixedly installed between the disc buckle supports, main beams are fixedly installed at the top of the disc buckle supports, a plurality of support blocks are fixedly installed above the main beams, bamboo plywood is fixedly installed on the support blocks.

[0006] Further, the beam bottom protection component at least includes a plurality of reserved hooks, the reserved hooks are all fixedly installed on the inner wall upper end of superposed beam.

[0007] Further, the first wire tightener is threadedly connected with the first steel wire, the second wire tightener is threadedly connected with the second steel wire.

[0008] Further, the lower end of the composite beam is fixedly installed with a plurality of reserved rings on both sides, vertical pipes are arranged between the reserved rings, a plurality of horizontal pipes are fixedly installed between the vertical pipes, and bamboo plywood is arranged between the horizontal pipes, and the bamboo plywood is threadedly connected with the second steel wire rope.

[0009] Further, the bridge deck slab support assembly comprises a plurality of horse stools, the horse stools are fixedly installed on both sides of the top end of the composite beam, the bridge deck slab concrete is laid under the horse stools, double-spliced channel steels are fixedly installed between the horse stools, and two hanging rods are threadedly connected in the double-spliced channel steels.

[0010] Further, a gasket is arranged between the hanging rod and the double-spliced channel steel, a plurality of square woods are arranged in the composite beam, the square woods are threadedly connected with the hanging rods, a plurality of bridge deck slab support blocks are fixedly arranged above the square woods, and the bamboo plywood is fixedly installed between the bridge deck slab concrete and the support blocks.

[0011] Further, the side wing support assembly comprises a fixed column, the fixed column is fixedly connected with the composite beam, a top support is fixedly installed at the center of the side edge of the composite beam, the top support is fixedly connected with a vertical column, the fixed column is fixedly connected with a horizontal column, and the vertical column and the horizontal column are fixedly connected.

[0012] Further, a support column is arranged on one side of the vertical column and the horizontal column, the support column is fixedly connected with the vertical column and the horizontal column at two ends respectively, a plurality of wooden wedges are fixedly arranged on the horizontal column, and a protective net support column is fixedly installed above one end of the horizontal column.

[0013] Further, the fixing assembly comprises a fixing assembly main body, two arc faces are arranged at the bottom of the fixing assembly main body, screw holes are arranged on both sides of the arc faces, and bolts are threadedly connected in the screw holes.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the influence on the downlink traffic in the road-crossing construction has been the key control project in the engineering construction, especially in the process of constructing the bridge deck slab by adopting the steel-concrete composite beam, the horizontal pipe and the bamboo plywood are fixed by arranging the fixing assembly, so that the construction personnel will not easily shake when walking and working;

[0015] By arranging the second wire tightener, the steel wire rope is divided into the first steel wire rope and the second steel wire rope, the installation position does not need to be assisted by a ladder to threadedly connect the first wire tightener with the first steel wire rope on the top, only needs to be stood on the bamboo plywood, the first wire tightener is threadedly connected with the first steel wire rope, the first wire tightener is hung on the reserved hook after the first wire tightener is threadedly connected with the first steel wire rope, the second steel wire rope is connected with the bamboo plywood, and finally the first steel wire rope and the second steel wire rope are connected through the second wire tightener, so that the suspension device is convenient to install and will not affect the traffic of the road below.

[0016] Through setting the side wing support assembly, construction safety is ensured when the outermost laminated beam is constructed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a box chamber support assembly structure schematic view of the utility model;

[0019] Figure 3 It is a beam bottom protection assembly structure schematic view of the utility model;

[0020] Figure 4 It is a bridge deck support assembly structure schematic view of the utility model;

[0021] Figure 5 It is a side wing support assembly structure schematic view of the utility model;

[0022] Figure 6 It is a fixed assembly structure schematic view of the utility model.

[0023] Illustration: 1, laminated beam; 2, laminated beam box chamber; 3, box chamber support assembly; 4, beam bottom protection assembly; 5, bridge deck support assembly; 6, side wing support assembly; 7, fixed assembly; 8, bamboo plywood; 31, disc buckle support; 32, secondary ridge; 33, main ridge; 34, support block; 41, reserved hook; 42, first wire tightener; 43, first steel wire rope; 44, second wire tightener; 45, second steel wire rope; 46, reserved ring; 47, vertical pipe; 48, horizontal pipe; 51, horse stool; 52, double-spliced channel steel; 53, suspender; 54, gasket; 55, square wood; 56, bridge deck support block; 57, bridge deck concrete; 61, fixed column; 62, shore; 63, vertical column; 64, support column; 65, horizontal column; 66, wooden wedge; 67, protective net support column; 71, fixed assembly main body; 72, camber; 73, screw hole; 74, bolt. DETAILED DESCRIPTION

[0024] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0025] Please refer to Figures 1-6The embodiment shown aims to provide a template suspension device for the middle position of a composite beam, comprising a composite beam 1, a composite beam chamber 2 arranged in the composite beam 1, a chamber support assembly 3 fixedly arranged in the composite beam chamber 2, a beam bottom protection assembly 4 fixedly arranged between the composite beams 1, a bridge deck support assembly 5 arranged above the beam bottom protection assembly 4, the bridge deck support assembly being fixedly connected with the composite beam 1, side wing support assemblies 6 fixedly connected with the composite beam 1 on both sides, a plurality of fixing assemblies 7 fixedly connected with the side wing support assemblies 6 on both sides, and a plurality of steel beam shear studs fixedly arranged on the surface of the composite beam 1.

[0026] It should be noted that after a series of component installations are completed, the following operations are required for further improvement:

[0027] Reinforcement processing: Before use, the reinforcement is straightened and rusted to ensure that the surface of the reinforcement is clean and flat without local bending. The processing and manufacturing of the reinforcement are concentrated in the processing shed. The finished products are marked and stacked according to the design number for identification and inspection. The configured reinforcement is transported to each construction point in batches by a flatbed trailer for installation.

[0028] Top reinforcement installation: After the top plate template is installed, the top plate reinforcement is bound. The binding sequence is from bottom to top. The upper and lower reinforcements are arranged in a plum blossom type by vertical structural reinforcement and welded to fix the top plate reinforcement. After the gasket block is set (the gasket block is made of C50 high-strength cement mortar, and the density is set according to the longitudinal and transverse directions), the embedded reinforcement is installed according to the position of the guardrail and the central separation zone. The embedded reinforcement must be firmly electrically welded with the top plate reinforcement to prevent displacement or falling during pouring. The embedded reinforcement at the expansion end is embedded with the corresponding reinforcement according to the design specified expansion joint type. The joint width and spacing should be controlled during embedding.

[0029] Concrete pouring: The concrete is steel fiber reinforced concrete. Pumped concrete is used for pouring the bridge deck on site. Due to the influence of the horse stool 51, large-span vibrating equipment cannot be used for vibration. Therefore, an insertion type and a vibrating beam are used for vibration. First, the concrete is manually leveled, then a vibrating rod is used for vibration, and then a vibrating beam is used for vibration and leveling. The inside of the formwork can only be vibrated by a vibrating rod and manually finished.

[0030] The top plate concrete is subjected to secondary finishing. The first finishing is performed after the concrete is vibrated and leveled, and the second finishing is performed when the concrete is near the initial setting to prevent early water loss causing surface cracking.

[0031] Maintenance: bridge deck slab concrete 57 belongs to large area thin layer component, easy to dry cracking, so after finishing a collection of pulp work to cover plastic film in time, prevent water evaporation too fast lead to concrete shrinkage cracking. After the concrete final setting, remove the plastic film, cover the geotextile for watering. Start to grow when not too much water, sprinkle a small amount of water to ensure humidity, prevent the concrete surface peeling, growing period is not less than seven days to ensure the strength of the concrete, avoid cracks, bridge deck pavement concrete growing period prohibit any vehicles on the road, also strictly prohibit the placement of goods on the surface, to avoid the concrete damage.

[0032] Formwork and support removal: formwork and support removal need to be removed after the concrete strength reaches 100%, the process needs to be temporarily controlled to the road below.

[0033] The fixing assembly 7 at least includes a fixing assembly body 71, two arc surfaces 72 are formed in the bottom of the fixing assembly body 71, screw holes 73 are formed in the two sides of the arc surfaces 72, and bolts 74 are threadedly connected in the screw holes 73;

[0034] A rectangular protrusion is arranged above the fixing assembly body 71, and the arc surfaces 72 are inverted semicircular grooves;

[0035] It should be noted that the arc surfaces 72 are respectively connected with the horizontal pipes 48, meanwhile, the bamboo-mesh board 8 arranged above the horizontal pipe 48 is provided with holes corresponding to the screw holes 73, so that the bolts 74 are threadedly connected with the screw holes 73 through the holes, thereby preventing the bamboo-mesh board 8 from shaking forward and backward, the width of the rectangular protrusion is the same as the gap width between the bamboo-mesh board 8 and the inner wall of the laminated beam 1, thereby preventing the bamboo-mesh board 8 from shaking left and right.

[0036] The box support assembly 3 at least includes a plurality of disc buckle supports 31, the disc buckle supports 31 are fixedly installed in the laminated beam box 2, secondary battens 32 are fixedly installed between the disc buckle supports 31, primary battens 33 are fixedly installed at the top ends of the disc buckle supports 31, a plurality of support blocks 34 are fixedly installed above the primary battens 33, and the bamboo-mesh boards 8 are fixedly installed on the support blocks 34;

[0037] It should be noted that the disc buckle supports 31 are made of φ60mm*3.2mm steel pipes, and are assembled by standard sections and other non-standard sections; the disc buckle supports 31 are supported by 20cm*10cm long wood pads, the vertical rod spacing is 1.5m in longitudinal direction, and the horizontal spacing is 0.9m; the primary battens 33 are made of 10cm*10cm wood, and the spacing is the same as the longitudinal spacing of the disc buckle supports 31; the secondary battens 32 are made of 5cm*5cm wood, and the 1.5cm thick bamboo-mesh boards 8 are arranged on the support blocks 34; during the installation of the disc buckle supports 31, the secondary battens 32 and the primary battens 33, the paint of the steel box girder has been sprayed, so the positions, where the disc buckle supports 31, the secondary battens 32 and the primary battens 33 contact the steel box girder, should be wrapped by geotextile to prevent the paint from being damaged.

[0038] The beam bottom protection assembly 4 at least includes a plurality of reserved hooks 41, which are fixedly installed on the upper end of the inner wall of the composite beam 1. The first wire tightener 42 is fixedly connected to the reserved hook 41. The first steel wire rope 43 is threadedly connected to the first wire tightener 42. The second wire tightener 44 is threadedly connected to the first steel wire rope 43. The second steel wire rope 45 is threadedly connected to the second wire tightener 44. A plurality of reserved rings 46 are fixedly installed on both sides of the lower end of the composite beam 1. The vertical pipes 47 are arranged between the reserved rings 46. A plurality of horizontal pipes 48 are fixedly installed between the vertical pipes 47. The bamboo-mesh board 8 is arranged between the horizontal pipes 48. The bamboo-mesh board 8 is threadedly connected to the second steel wire rope 45. The upper end of the first wire tightener 42 is provided with a hook. Threaded holes are formed in the lower end of the first wire tightener 42. Threaded holes are formed in both ends of the second wire tightener 44.

[0039] The upper end of the first wire tightener 42 is pulled with the reserved hook 41. The lower end of the first steel wire rope 43 is threadedly connected to the upper end of the first wire tightener 42. The lower end of the first wire tightener 42 is threadedly connected to the upper end of the second wire tightener 44. The lower end of the second wire tightener 44 is threadedly connected to the upper end of the second steel wire rope 45. The lower end of the second steel wire rope 45 is fixedly connected to the bamboo-mesh board 8. The vertical pipes 47 are clamped between the reserved rings 46. A plurality of horizontal pipes 48 are arranged in the vertical pipes 47. The intersection points of the vertical pipes 47 and the horizontal pipes 48 are fixed by the straps.

[0040] It should be noted that, since the distance between the adjacent composite beams 1 is 1.961 m, the downward road is a city road with heavy traffic. In order to prevent the bridge construction from adversely affecting the downward traffic, the bamboo-mesh board 8 is hoisted to the adjacent composite beams 1 to protect the bottom. The 1.5 m thick bamboo-mesh board 8 is used at the bottom to prevent the falling of objects. The 5×5 cm wooden bars are used as the horizontal ribs every 1 m to improve the stiffness of the bamboo-mesh board 8. Two φ48×3.5 steel pipes are arranged at the bottom of the wooden bars in the longitudinal direction of the bridge to protect the bottom. The threaded holes are reserved in advance at the top of the composite beam 1 during the manufacturing process to arrange the hooks. The hooks are removed after the concrete is poured.

[0041] The bridge deck slab support assembly 5 at least includes a plurality of horse stools 51, which are fixedly installed on both sides of the top end of the composite beam 1. The bridge deck concrete 57 is laid under the horse stools 51. The double-spliced channel steels 52 are fixedly installed between the horse stools 51. Two hangers 53 are threadedly connected in the double-spliced channel steels 52. The spacers 54 are arranged between the double-spliced channel steels 52 and the hangers 53. A plurality of square woods 55 are arranged in the composite beams 1. The square woods 55 are threadedly connected to the hangers 53. A plurality of bridge deck slab support blocks 56 are fixedly arranged above the square woods 55. The bamboo-mesh boards 8 are fixedly installed between the bridge deck concrete 57 and the bridge deck slab support blocks 56.

[0042] It needs to be added that the double-punched channel steel 52 adopts a channel steel with a length of 200 cm as a bearing beam (longitudinal interval of 60 cm) arranged in the transverse bridge direction, the horse stool 51 adopts HRB335 φ32 steel, the suspender 53 adopts φ16 screw rod, the bottom die adopts 20 mm thick bamboo plywood 8, the longitudinal back ribs adopt 5 cm*5 cm square wood 55 with an interval of 20 cm, the transverse back ribs adopt 10 cm*10 cm square wood 55 (interval of 60 cm), and the bridge deck support assembly 5 is formed, and the load transmission is from top to bottom: double-punched channel steel 52→ suspender 53→ bamboo plywood 8→ bridge deck support block 56→ longitudinal square wood 55 back rib→ superimposed beam 1.

[0043] The side wing support assembly 6 at least comprises a fixed column 61, the fixed column 61 is fixedly connected with the superimposed beam 1, a center of a side edge of the superimposed beam 1 is fixedly installed with a top support 62, the top support 62 is fixedly connected with a vertical column 63, the fixed column 61 is fixedly connected with a horizontal column 65, the vertical column 63 and the horizontal column 65 are fixedly connected, one side of the vertical column 63 and the horizontal column 65 is provided with a support column 64, both ends of the support column 64 are fixedly connected with the vertical column 63 and the horizontal column 65 respectively, a plurality of wooden wedges 66 are fixedly arranged on the horizontal column 65, a protective net support column 67 is fixedly installed on one end of the horizontal column 65 in the upper side, and the vertical column 63, the support column 64 and the horizontal column 65 form a triangular support frame.

[0044] It needs to be added that, since the flange plate and the anti-collision guardrail are designed to be cast in place, the triangular support frame + square wood + bamboo plywood 8 is used as the bottom die, the triangular support frame is welded by φ60 mm*4 mm steel pipes, is installed along the longitudinal direction of the beam body, and has a longitudinal interval of 750 mm; before installation, a hole with a diameter of not less than φ30 mm is pre-punched in the flange plate side of the steel beam during the in-factory manufacturing process of the superimposed beam 1; the triangular support frame is connected with the upper flange plate of the superimposed beam 1 through bolts; the bottom of the triangular support frame is abutted firmly against the outermost side plate through the top support 62, and the contact surface is wrapped with geotextile to prevent the surface paint from being scratched; after the triangular support frame support is installed, the 15 mm wooden wedges 66 are laid on the upper side; the 100*100 mm square wood is laid on the upper side of the wooden wedges 66 with an interval of 30 cm; finally, the 15 mm bamboo plywood 8 is laid; the steel pipes are used to connect the vertical faces of the triangular support frame, three horizontal pull rods are arranged on the upper, middle and lower sides, and the protective guardrails are formed; after completion, the wire mesh, green mesh and skirting board are laid on the surface to prevent sundries from falling.

[0045] In the specific use, the superimposed beam 1 is installed in place, the beam bottom protection assembly 4 is installed between the superimposed beams 1, the box chamber support assembly 3 is installed in the superimposed beam box chamber 2, the bridge deck support assembly 5 and the side wing support assembly 6 are installed, the steel bars are bound, the concrete is poured, the concrete is cured, the post-pouring concrete is poured after 28 days, and the concrete is cured.

[0046] In order to further illustrate the technical means and effects taken by the utility model to achieve the predetermined utility model purposes, the following will be combined with the drawings and the preferred embodiments to specifically explain the specific embodiments, structures, features and effects of the utility model.

[0047] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as above with the preferred embodiment, it is not intended to limit the utility model. Any person skilled in the art can make some changes or modifications to the equivalent embodiments with the disclosed technical content without departing from the technical solution range of the utility model. Any modification, equivalent change and modification of the above embodiments according to the technical essence of the utility model still belong to the range of the technical solution of the utility model.

Claims

1. A formwork suspension device for the intermediate position of a composite beam, comprising a composite beam (1), characterized in that, The composite beam (1) is internally provided with a composite beam chamber (2), the composite beam chamber (2) is internally fixedly installed with a chamber support assembly (3), the composite beam (1) is fixedly installed with a beam bottom protection assembly (4), the beam bottom protection assembly (4) is provided with a bridge deck support assembly (5) above, the bridge deck support assembly is fixedly connected with the composite beam (1), the composite beam (1) is fixedly connected with a side wing support assembly (6) on both sides, and the side wing support assembly (6) is fixedly connected with a plurality of fixing assemblies (7) on both sides.

2. The formwork suspension device according to claim 1, wherein, The chamber support assembly (3) at least includes a plurality of disc buckle supports (31), the disc buckle supports (31) are fixedly installed in the composite beam chamber (2), the disc buckle supports (31) are fixedly installed with secondary beams (32) between, the disc buckle supports (31) are fixedly installed with main beams (33) at the top, a plurality of support blocks (34) are fixedly installed on the main beams (33), and bamboo-mesh boards (8) are fixedly installed on the support blocks (34).

3. The formwork suspension device according to claim 1, wherein the suspension device is a formwork suspension device for a composite beam intermediate position formwork. The beam bottom protection assembly (4) at least includes a plurality of reserved hooks (41), and the reserved hooks (41) are all fixedly installed on the inner wall of the composite beam (1) and are all fixedly installed on the inner wall of the composite beam (1).

4. The formwork suspension device according to claim 3, wherein the suspension device is configured to be attached to the formwork at a position between the first end and the second end of the formwork. The reserved hooks (41) are all fixedly connected with first wire tighteners (42), the first wire tighteners (42) are threadedly connected with first steel wire ropes (43), the first steel wire ropes (43) are threadedly connected with second wire tighteners (44), and the second wire tighteners (44) are threadedly connected with second steel wire ropes (45).

5. The formwork suspension device according to claim 4, wherein the suspension device is configured to be attached to the formwork at a position between the first end and the second end of the formwork. The lower ends of the composite beams (1) are all fixedly installed with a plurality of reserved rings (46) on both sides, vertical pipes (47) are arranged between the reserved rings (46), a plurality of horizontal pipes (48) are fixedly installed between the vertical pipes (47), bamboo-mesh boards (8) are arranged between the horizontal pipes (48), and the bamboo-mesh boards (8) are threadedly connected with the second steel wire ropes (45).

6. The formwork suspension device for a composite beam according to claim 1, wherein The bridge deck support assembly (5) at least includes a plurality of horse stools (51), the horse stools (51) are all fixedly installed on both sides of the top of the composite beam (1), bridge deck concrete (57) is laid under the horse stools (51), double-spliced channel steels (52) are all fixedly installed between the horse stools (51), and two hanging rods (53) are threadedly connected in the double-spliced channel steels (52).

7. The formwork suspension device according to claim 6, wherein the formwork suspension device is a formwork suspension device for a composite beam. The hanging rods (53) and the double-spliced channel steels (52) are all provided with gaskets (54), a plurality of square woods (55) are arranged in the composite beams (1), the square woods (55) are threadedly connected with the hanging rods (53), a plurality of bridge deck support blocks (56) are fixedly arranged above the square woods (55), and the bamboo-mesh boards (8) are fixedly installed between the bridge deck concrete (57) and the support blocks (56).

8. The formwork suspension device according to claim 1, wherein, The side wing support assembly (6) at least includes a fixed column (61), the fixed column (61) is fixedly connected with the composite beam (1), a roof support (62) is fixedly installed at the center of the side edge of the composite beam (1), the roof support (62) is fixedly connected with a vertical column (63), the fixed column (61) is fixedly connected with a horizontal column (65), and the vertical column (63) and the horizontal column (65) are fixedly connected.

9. The formwork suspension device according to claim 8, wherein the formwork suspension device is a formwork suspension device for a composite beam intermediate position formwork. The vertical column (63) and the cross column (65) are provided with a support column (64) on one side, the two ends of the support column (64) are fixedly connected with the vertical column (63) and the cross column (65) respectively, a plurality of wooden wedges (66) are fixedly arranged on the cross column (65), and a protective net support column (67) is fixedly installed above one end of the cross column (65).

10. The formwork suspension device according to claim 1, wherein, The fixing assembly (7) at least comprises a fixing assembly body (71), two arc surfaces (72) are formed in the bottom of the fixing assembly body (71), screw holes (73) are formed in the two sides of the arc surfaces (72), and bolts (74) are threadedly connected in the screw holes (73).

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