Panel concrete secondary plastering operation trolley and construction method thereof

Abstract

The invention discloses a panel concrete secondary plastering operation trolley which comprises a trolley frame, and the length of the trolley frame is matched with the width of a panel concrete secondary plastering operation platform. High supporting leg structures are arranged at the two ends of the trolley frame respectively, jacking mechanisms are arranged on the opposite inner sides of the two high supporting leg structures, and lifting devices are arranged on the two sides of the trolley frame. The invention further discloses a construction method of the panel concrete secondary plastering operation trolley. The working platform solves the problems that according to an existing working platform for concrete manual plastering, potential safety hazards exist in secondary plastering, and the apparent quality is prone to damage.

Description

Technical Field

[0001] The invention belongs to the technical field of dam pouring and plastering construction, and specifically relates to a panel concrete secondary plastering operation trolley, and also relates to a construction method of the panel concrete secondary plastering operation trolley. Background Art

[0002] The dam of a large-scale water conservancy hub project is usually a gravel reinforced concrete face rockfill dam. The face plate is cast on the slope using a slip form. During casting, the surface is finished with one or two plasterings to ensure that the appearance quality of the face plate meets the requirements. As the main anti-seepage body of a water conservancy hub project, after the face plate concrete is cast, it is first necessary to use a wooden trowel for preliminary leveling to remove the slurry and bubbles on the concrete surface and make the surface initially level; after the initial plastering is completed, a secondary plastering and calendering is performed. After the concrete surface is slightly dry, an iron trowel is used for secondary plastering to improve the density and flatness of the concrete surface and reduce the occurrence of cracks.

[0003] At present, the primary plastering platform can be connected to the slipform by welding or bolts, and can be lifted and lowered together with the slipform, so as to facilitate manual primary plastering. Traditional secondary plastering uses safety ropes to pull manual plastering, the secondary surface collection platform is a liftable trolley, and the slipform is connected by an electric hoist plus a lifting lug, but the manual plastering speed is slow, and based on the different plastering experience of different workers, it needs to be inspected and trimmed with a ruler after installation. Because workers step on the panels that have been plastered, the surface quality of some parts cannot be guaranteed; secondly, workers stand vertically on the slope of the panel surface, holding too many tools in their hands, and the safety risk is too high, which is not conducive to safe construction. On the slope surface with a length of hundreds of meters, the construction workers squat on the newly vibrated concrete surface with a safety rope for the secondary plastering operation platform for concrete, which is inefficient. Due to the large area and high height of the panel, there are huge safety hazards, and it is easy to cause damage to the surface quality. The construction quality is difficult to control. Based on these unfavorable factors, the construction progress of reinforced concrete panel dams is greatly affected, which has become a major problem in the pouring and plastering construction of dams. Summary of the invention

[0004] One purpose of the present invention is to provide a panel concrete secondary plastering operation trolley, which solves the problems of the existing concrete manual plastering operation platform, the secondary plastering having potential safety hazards and the easy destruction of the surface quality.

[0005] Another object of the present invention is to provide a construction method for a trolley for secondary plastering of panel concrete.

[0006] A technical solution adopted by the present invention is that a panel concrete secondary plastering operation trolley includes a trolley frame, the length of the trolley frame is adapted to the width of the panel concrete secondary plastering operation platform; high leg structures are respectively arranged at both ends of the trolley frame, jacking mechanisms are arranged on the inner sides of the two high leg structures, and lifting devices are arranged on both sides of the trolley frame.

[0007] The present invention is also characterized in that: The trolley frame includes a supporting base plate, which is rectangular in shape. Cross beams are arranged in parallel on both side edges of the upper surface of the supporting base plate along the length direction. A horizontal beam is arranged in parallel between the two cross beams. A number of longitudinal beams are arranged vertically and equidistantly between the two cross beams. The longitudinal beams vertically penetrate the horizontal beams and are welded as one piece. A number of webs are vertically and equidistantly connected between the horizontal beams and the cross beams. Reinforcing ribs are arranged horizontally between the two longitudinal beams at the ends of the cross beams.

[0008] The high outrigger structure comprises a rear wheel outrigger and a front wheel outrigger. A front wheel slideway is vertically arranged on the longitudinal beam at each end, and a rear leg slideway is obliquely arranged on the longitudinal beam at each end. The rear leg slideway is located directly behind the front wheel slideway.

[0009] The front wheel slide includes a front column slide, which is fixed on the longitudinal beam at the end, and the front column slide is slidably clamped on the front column, and a front column pressure plate is arranged on the front column, and the front column is slid to a fixed position by the front column pressure plate for fastening and locking; the rear leg slide includes a rear column slide, which is fixed on the longitudinal beam at the end, and the rear column slide is located directly behind the front column slide, and the angle between the rear column slide and the vertical direction is 32°, and the rear column slide is slidably clamped on the rear column, and a rear column pressure plate is arranged on the rear column, and the rear column is slid to a fixed position by the rear column pressure plate for fastening and locking; the bottoms of the front column and the rear column are connected to tires, and locking devices are arranged on the tires.

[0010] A cross bar is arranged above the horizontal beam, and a number of diagonal bars a are connected between the cross bar and the cross beam on one side, and a tie rod is arranged on the diagonal between every two adjacent diagonal bars a, and every two adjacent tie rods are arranged according to staggered diagonals; a number of diagonal bars b are connected between the cross bar and the cross beam on the other side, and every two diagonal bars b are arranged at an interval of three diagonal bars a, and the diagonal bars a and the diagonal bars b are symmetrically arranged along the axis of the supporting bottom plate, and the diagonal bars a and the diagonal bars b are symmetrically arranged on both sides of the cross bar and are connected by relative welding.

[0011] The horizontal beam is made of 22B I-steel, and the web is made of No. 10 channel steel or No. 10 I-steel; the stiffeners and longitudinal beams are made of B channel steel, and the tie rods are made of angle steel or steel bars; the crossbar, diagonal bar a, and diagonal bar b are all made of 100mm*100mm hollow square steel, and the steel plate thickness δ is 5mm; the supporting bottom plate is made of 1500mm*14200mm steel plate, and the steel plate thickness δ is 6mm.

[0012] The jacking mechanism adopts a screw jacking machine, and the screw jacking machines are arranged oppositely on both ends of the beam.

[0013] The lifting device includes a steel support, which is arranged at both ends of the beam and above the reinforcing ribs. The steel support is provided with lifting ears. An electric hoist is arranged in front of the beam on one side of the trolley frame. The electric hoist is hinged to the lifting ear. The distance between the trolley frame and the sliding formwork can be adjusted by adjusting the electric hoist.

[0014] The trolley frame is towed to the rear end of the sliding formwork through two sets of electric traction mechanisms and traction wire ropes. The towing distance between the trolley frame and the sliding formwork is controlled at 3m-8m.

[0015] Another technical solution adopted by the present invention is a construction method of a panel concrete secondary plastering operation trolley, which adopts a panel concrete secondary plastering operation trolley and is specifically implemented according to the following steps: the trolley frame is connected to the slipform by an electric hoist, and the distance between the secondary plastering trolley and the slipform is adjusted by adjusting the electric hoist; According to the condensation condition of the concrete surface, the platform frame automatically adjusts to climb up or slide down by using the driving force of the electric hoist, realizing synchronous operation with the sliding membrane or using the electric hoist to adjust the operation autonomously; The trolley frame adopts an electric hoist to connect and fix the slipform. The trolley frame has no autonomous climbing power and can only be raised and lowered autonomously. The power of the winch to pull the slipform drives the operation of the secondary plastering trolley. A double screw jack is used to raise or lower the trolley vertically.

[0016] The beneficial effects of the present invention are as follows: the structure of the panel concrete secondary plastering operation trolley of the present invention is simple and firm, and it is easy to install and move, which improves the quality of panel concrete, simplifies the construction process, optimizes the construction technology, makes the process connection close, effectively guarantees the quality of concrete, makes it easy to find and deal with the defects on the panel surface in time, achieves the best concrete pouring, shortens the construction period and requires fewer people, which not only improves work efficiency but also ensures the safety of operators. The panel concrete secondary plastering operation trolley of the present invention is flexible to transport, convenient to construct, highly safe, and has significant social and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the secondary plastering operation trolley for panel concrete of the present invention; Figure 2 It is a side view of the panel concrete secondary plastering operation trolley of the present invention; Figure 3 It is a structural schematic diagram of the trolley frame of the present invention; Figure 4 It is a schematic diagram of the high outrigger structure of the present invention.

[0018] In the figure, 1. trolley frame, 2. jacking mechanism, 3. lifting device, 4. front wheel slide, 5. rear leg slide, 6. rear wheel support leg, 7. front wheel support leg, 8. side mold, 9. steel bracket, 10. front column slide, 11. front column, 12. front column pressure plate, 13. rear column slide, 14. rear column, 15. rear column pressure plate, 16. tire, 17. lifting ear, 18. cross bar, 19. horizontal beam, 20. cross beam, 21. diagonal bar a, 22. pull rod, 23. web, 24. horizontal bar, 25. longitudinal beam, 26. diagonal bar b, 27. supporting bottom plate. DETAILED DESCRIPTION

[0019] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1 The structure of the panel concrete secondary plastering operation trolley of the present invention is as follows: Figure 1 and Figure 2 As shown, it includes a trolley frame 1, the length of which is adapted to the width of the panel concrete secondary plastering work platform; high leg structures are respectively arranged at both ends of the trolley frame 1, and jacking mechanisms 2 are arranged on the inner sides of the two high leg structures, and lifting devices 3 are arranged on both sides of the trolley frame 1.

[0021] Example 2 like Figure 3 As shown, the trolley frame 1 includes a supporting base plate 27, which is rectangular. Cross beams 20 are arranged in parallel on both side edges of the upper surface of the supporting base plate 27 along the length direction. A horizontal beam 19 is arranged in parallel between the two cross beams 20. A plurality of longitudinal beams 25 are arranged vertically and equidistantly between the two cross beams 20. The longitudinal beams 25 vertically penetrate the horizontal beams 19 and are welded as one piece. A plurality of webs 23 are vertically and equidistantly connected between the horizontal beams 19 and the cross beams 20. A reinforcing rib 24 is horizontally arranged between the two longitudinal beams 25 at the ends of the cross beam 20.

[0022] The high outrigger structure includes a rear wheel outrigger 6 and a front wheel outrigger 7. A front wheel slide 4 is vertically arranged on the longitudinal beam 25 at each end, and a rear leg slide 5 is obliquely arranged on the longitudinal beam 25 at each end. The rear leg slide 5 is located directly behind the front wheel slide 4.

[0023] like Figure 4As shown, the front wheel slide 4 includes a front column slide 10, which is fixed on the longitudinal beam 25 at the end, and the front column slide 10 is slidably clamped to the front column 11, and a front column pressure plate 12 is arranged on the front column 11, and the front column 11 is slid to a fixed position by the front column pressure plate 12 for fastening and locking; the rear leg slide 5 includes a rear column slide 13, and the rear column slide 13 is fixed on the longitudinal beam 25 at the end, and the rear column slide 13 is located directly behind the front column slide 10, and the angle between the rear column slide 13 and the vertical direction is 32°, and the rear column slide 13 is slidably clamped to the rear column 14, and a rear column pressure plate 15 is arranged on the rear column 14, and the rear column 14 is slid to a fixed position by the rear column pressure plate 15 for fastening and locking; the bottoms of the front column 11 and the rear column 14 are both connected to the tire 16, and a locking device is arranged on the tire 16.

[0024] Example 3 A cross bar 18 is arranged above the horizontal beam 19, and a plurality of diagonal bars a21 are connected between the cross bar 18 and a cross bar 20 on one side, and a pull rod 22 is arranged on the diagonal between every two adjacent diagonal bars a21, and every two adjacent pull rods 22 are arranged according to staggered diagonals; a plurality of diagonal bars b26 are connected between the cross bar 18 and the cross bar 20 on the other side, and every two diagonal bars b26 are arranged at intervals of three diagonal bars a21, and the diagonal bars a21 and the diagonal bars b26 are symmetrically arranged along the axis of the supporting bottom plate 27, and the diagonal bars a21 and the diagonal bars b26 are symmetrically arranged on both sides of the cross bar 18 and are connected by relative welding.

[0025] Example 4 The horizontal beam 19 is made of 22B I-steel, and the web 23 is made of No. 10 channel steel or No. 10 I-steel; the reinforcing ribs 24 and the longitudinal beam 25 are both made of 22B channel steel, and the tie rod 22 is made of angle steel or steel bar.

[0026] The horizontal bar 18, the diagonal bar a21 and the diagonal bar b26 are all made of 100mm*100mm hollow square steel, and the steel plate thickness δ is 5mm.

[0027] The supporting bottom plate 27 is made of 1500mm*14200mm steel plate with a thickness of 6mm. The channel steel and I-beam components are welded on the supporting bottom plate 27 to ensure the stability of the overall span.

[0028] The jacking mechanism 2 adopts a screw jacking machine, and the screw jacking machines are arranged on both ends of the beam 20. The beam 20 is the basis for installing the screw jacking machine. The platform frame 1 is lifted and lowered by the screw jacking machine installed on the beam 20 to ensure the distance from the concrete surface. The screw jacking machine is connected to the control system to control the extension and retraction of the screw jacking machine.

[0029] The panel concrete secondary finishing operation trolley of the present invention is made of steel, and its structural dimensions, steel specifications and models need to be selected through theoretical calculation according to the length of the slope panel, the load and the floating condition of the mold body to avoid excessive deflection. The trolley frame 1 is welded with high-strength square steel, and the trolley frame 1 is connected to the tire through a high-leg structure. The double-screw jacking machine is used for the lifting of the trolley frame 1 to meet the construction needs and ensure the distance from the concrete surface. After the trolley frame 1 is fixed, no displacement occurs, the shaking is reduced, and the safety of the construction site is ensured.

[0030] A side form 8 is arranged on one side of the screw jack, and the side form 8 bears the horizontal load generated when pouring concrete, and forms a closed space with the slip form, so that concrete can flow in from the bottom and fully fill the entire space of the panel.

[0031] The lifting device 3 includes a steel support 9, which is arranged at both ends of the cross beam 20. The steel support 9 is located above the reinforcing rib 24. A lifting ear 17 is arranged on the steel support 9. An electric hoist is arranged in front of the cross beam 20 on one side of the trolley frame 1. The electric hoist is hinged to the lifting ear 17. The distance between the trolley frame 1 and the sliding formwork is adjusted by adjusting the electric hoist.

[0032] The trolley frame 1 is towed to the rear end of the sliding formwork by traction wire ropes through two sets of electric traction mechanisms. The towing distance between the trolley frame 1 and the sliding formwork is controlled at 3m-8m to avoid the trolley frame 1 from deviating during movement and causing safety accidents.

[0033] A counterweight device is provided on the trolley frame 1 , and the counterweight device is pressed on the supporting bottom plate 27 . The counterweight device is used to prevent the trolley frame 1 from floating when the angle of the construction surface is too large.

[0034] The construction method of the panel concrete secondary plastering operation trolley of the present invention adopts the above-mentioned panel concrete secondary plastering operation trolley and is specifically implemented according to the following steps: The trolley frame 1 is connected to the sliding form by an electric hoist, and the distance between the secondary plastering trolley and the sliding form is adjusted by adjusting the electric hoist; According to the coagulation condition of the concrete surface, the trolley frame 1 automatically adjusts to climb upward or slide downward using the driving force of the electric hoist, thereby realizing synchronous operation with the sliding membrane or autonomously adjusting operation using the electric hoist.

[0035] The trolley frame 1 is connected to the fixed slipform by an electric hoist. The trolley frame 1 has no autonomous climbing power and can only be raised and lowered autonomously. The power of the winch to pull the slipform drives the operation of the secondary plastering trolley. A double-screw jack is used to raise or lower the trolley vertically to facilitate workers' plastering needs.

[0036] The panel concrete secondary plastering operation trolley of the present invention can rise along with the slipform on a slope surface with a length of hundreds of meters to ensure normal concrete plastering. At the same time, it can use an electric hoist to move up and down along the panel to ensure that the concrete is fully covered. The high-leg structure lifting platform frame 1 is easy, simple and reliable to operate, saving labor, time and money, and is widely used in high-slope concrete construction such as water conservancy, municipal administration, and environmental protection. Under the premise of ensuring construction safety, the present invention has a small footprint and is easy to install. It has good stability when placed on a 32° slope and can achieve the best force effect. It has low operating efficiency and low cost, is highly adaptable to different working conditions, and the whole machine continues to operate stably.

[0037] The construction method of the panel concrete secondary plastering operation trolley of the present invention has doubled the construction efficiency, ensured that the surface of the constructed panel is flat, and the surface of the formed panel will not be wavy due to the deflection and deformation of the trolley frame 1, thus avoiding rework, greatly reducing the unsafe operation of the operators, improving the surface quality of the panel concrete, and accelerating the construction progress.

Claims

1. A trolley for secondary plastering of panel concrete, comprising a trolley frame (1), wherein the length of the trolley frame (1) is adapted to the width of a trolley for secondary plastering of panel concrete; high leg structures are respectively arranged at both ends of the trolley frame (1), jacking mechanisms (2) are arranged on the inner sides of the two high leg structures, and lifting devices (3) are arranged on both sides of the trolley frame (1).

2. The panel concrete secondary plastering operation trolley according to claim 1, It is characterized in that The trolley frame (1) comprises a supporting bottom plate (27) which is rectangular in shape. A cross beam (20) is arranged in parallel on both side edges of the upper surface of the supporting bottom plate (27) along the length direction. A horizontal beam (19) is arranged in parallel between the two cross beams (20). A plurality of longitudinal beams (25) are arranged vertically and equidistantly between the two cross beams (20). The longitudinal beams (25) vertically penetrate the horizontal beams (19) and are integrally welded. A plurality of webs (23) are vertically and equidistantly connected between the horizontal beams (19) and the cross beams (20). A reinforcing rib (24) is arranged horizontally between the two longitudinal beams (25) located at the ends of the cross beams (20).

3. The panel concrete secondary plastering operation trolley according to claim 2, It is characterized in that The high outrigger structure comprises a rear wheel outrigger (6) and a front wheel outrigger (7), a front wheel slide groove (4) being vertically arranged on the longitudinal beam (25) at each end, and a rear leg slide groove (5) being obliquely arranged on the longitudinal beam (25) at each end, wherein the rear leg slide groove (5) is located directly behind the front wheel slide groove (4).

4. The panel concrete secondary finishing operation trolley according to claim 3, It is characterized in that The front wheel slide groove (4) includes a front column slide groove (10), the front column slide groove (10) is fixed on the longitudinal beam (25) at the end, the front column slide groove (10) is slidably connected to the front column (11), and a front column pressure plate (12) is provided on the front column (11). The front column (11) is slid to a fixed position by the front column pressure plate (12) to be fastened and locked; the rear leg slide groove (5) includes a rear column slide groove (13), the rear column slide groove (13) is fixed on the longitudinal beam (25) at the end, The rear column slide groove (13) is located directly behind the front column slide groove (10), and the angle between the rear column slide groove (13) and the vertical direction is 32 degrees. The rear column slide groove (13) is slidably engaged with the rear column (14), and a rear column pressing plate (15) is arranged on the rear column (14). The rear column (14) is slid to a fixed position by the rear column pressing plate (15) to be fastened and locked; the bottoms of the front column (11) and the rear column (14) are both connected to the tire (16), and the tire (16) is provided with a locking device.

5. The panel concrete secondary finishing operation trolley according to claim 4, It is characterized in that A cross bar (18) is arranged above the horizontal beam (19); a plurality of diagonal bars a (21) are connected between the cross bar (18) and the cross bar (20) on one side; a tie rod (22) is arranged on the diagonal line between every two adjacent diagonal bars a (21); and every two adjacent tie rods (22) are arranged along staggered diagonals; a plurality of diagonal bars b (26) are connected between the cross bar (18) and the cross bar (20) on the other side; every two diagonal bars b (26) are arranged at intervals of three diagonal bars a (21); the diagonal bars a (21) and the diagonal bars b (26) are symmetrically arranged along the axis of the supporting bottom plate (27); the diagonal bars a (21) and the diagonal bars b (26) are symmetrically arranged on both sides of the cross bar (18) and are connected by relative welding.

6. The panel concrete secondary finishing operation trolley according to claim 5, It is characterized in that The horizontal beam (19) is made of 22B I-steel, and the web (23) is made of No. 10 channel steel or No. 10 I-steel; the reinforcing ribs (24) and the longitudinal beam (25) are made of (22)B channel steel, and the tie rod (22) is made of angle steel or steel bar; the cross bar (18), the diagonal bar a (21), and the diagonal bar b (26) are all made of 100mm*100mm hollow square steel, and the steel plate thickness δ is 5mm; the supporting bottom plate (27) is made of 1500mm*14200mm steel plate, and the steel plate thickness δ is 6mm.

7. The panel concrete secondary finishing operation trolley according to claim 1, It is characterized in that The jacking mechanism (2) adopts a screw jacking machine, and the screw jacking machines are arranged opposite to each other at both ends of the crossbeam (20).

8. The panel concrete secondary finishing operation trolley according to claim 7, It is characterized in that The lifting device (3) comprises a steel support (9), the steel support (9) being arranged at both ends of the cross beam (20), the steel support (9) being located above the reinforcing rib (24), a lifting lug (17) being arranged on the steel support (9), and an electric hoisting hoist being arranged in front of the cross beam (20) on one side of the trolley frame (1), the electric hoisting hoist being hinged to the lifting lug (17), and the distance between the trolley frame (1) and the sliding formwork being adjusted by adjusting the electric hoisting hoist.

9. The panel concrete secondary finishing operation trolley according to claim 8, It is characterized in that The trolley frame (1) is towed to the rear end of the sliding formwork via two sets of electric traction mechanisms and traction steel wire ropes, and the towing distance between the trolley frame (1) and the sliding formwork is controlled within a range of 3m to 8m.

10. Construction method of the secondary plastering operation trolley for panel concrete, It is characterized in that The panel concrete secondary plastering operation trolley according to claim 9 is implemented in accordance with the following steps: the trolley frame (1) is connected to the slipform by an electric hoist, and the distance between the secondary plastering trolley and the slipform is adjusted by adjusting the electric hoist; According to the coagulation condition of the concrete surface, the platform frame (1) automatically adjusts to climb upward or slide downward by utilizing the driving force of the electric hoist, thereby realizing synchronous operation with the sliding membrane or autonomously adjusting operation by using the electric hoist; The trolley frame (1) is connected to the fixed slipform by an electric hoist. The trolley frame (1) has no autonomous climbing power and can only be raised and lowered autonomously. The power of the winch to pull the slipform drives the operation of the secondary plastering trolley. A double screw jack is used to raise or lower the trolley vertically.

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