UHPC thin-wall shell cover beam construction device

Through the UHPC thin-walled shell cap beam construction device, combined with the construction trolley and forming mold, the continuous pouring and maintenance of the concrete bridge is achieved, which solves the efficiency and environmental impact problems of on-site construction, improves construction efficiency and shortens the construction period.

CN223354505UActive Publication Date: 2025-09-19CCCC SHEC WUHAN PORT NEW MATERIALS +1
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Patent Information

Application Number
CN202422780253.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-09-19
Estimated Expiration
2034-11-14

AI Technical Summary

Technical Problem

The existing technology in concrete bridge construction has the following problems: large on-site workload, complex construction procedures, long construction period, difficult to ensure quality, large land occupation and great impact on the environment. In addition, the on-site pouring method has a serious impact on traffic and cannot achieve continuous pouring and maintenance.

Method used

The UHPC thin-walled shell cap beam construction device is used, combined with a construction trolley and forming molds. Through continuous transportation and pouring, uninterrupted construction and static maintenance are achieved. Positioning devices and lifting equipment are used for precise positioning and rapid replacement of molds, shortening the construction period.

Benefits of technology

The continuous pouring and curing of concrete cap beam construction was achieved, which improved production efficiency, shortened the construction period, and reduced the impact on the environment and traffic interference.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a UHPC thin-wall shell cover beam construction device which comprises a construction trolley, a positioning device arranged on the front side of the construction trolley, a detachable forming mold arranged above the construction trolley and hoisting equipment arranged above the construction trolley and the forming mold, the construction trolley comprises a trolley chassis, and a plurality of roller sets are symmetrically arranged below the trolley chassis. Distance measuring sensors are arranged on the front side and the rear side of the trolley chassis, a trolley supporting plate is arranged on the upper portion of the trolley chassis, a hydraulic buffer is arranged between the trolley chassis and the roller set, and a hydraulic ejector rod is further arranged on the lower portion of the trolley chassis. After pouring, the bent cap needing to be maintained is transported to a planned standing maintenance area through the construction trolley to be arranged in order, continuous pouring, uninterrupted construction, simultaneous construction and simultaneous standing maintenance can be carried out through the device, the production efficiency is improved, and the construction period is shortened.
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Description

Technical Field

[0001] The utility model relates to the field of UHPC thin-walled shell cap beam construction, in particular to a UHPC thin-walled shell cap beam construction device. Background Art

[0002] For the construction of concrete bridges, concrete construction is usually carried out on site, and cast-in-place concrete construction requires a large number of formworks and temporary supports. Therefore, there are disadvantages such as large on-site workload, complex construction procedures, long construction period, relatively difficult to ensure construction quality, large construction area and high construction risks. It not only consumes a lot of energy, but also has an adverse impact on the surrounding environment. In addition, the supports and cap beam formwork erected on site are prone to defects, which will also have an adverse effect on the quality of the cap beam. In addition, when constructing a cast-in-place concrete bridge, the construction quality of the bridge will also be limited by many factors such as construction space, seasonal climate, and surrounding environment. In addition, the construction of the bridge will have a serious impact on the road traffic under the bridge, and even require the interruption of road traffic under the bridge.

[0003] For this reason, prefabricated concrete has also come into being. However, for the construction method of hoisting and placing the integral precast concrete cap beam, although the impact of construction on traffic under the bridge is reduced compared with the construction method of pouring concrete on site, the construction of a set of thin-walled shell cap beams often requires dozens of hours of static curing after pouring. During this curing process, the mold cannot continue to pour the next round of casting. Therefore, a device that can continuously perform pouring and curing is needed to achieve uninterrupted construction, simultaneous construction and static curing, improve production efficiency, and shorten the construction period. Utility Model Content

[0004] The main purpose of the utility model is to provide a UHPC thin-walled shell cap beam construction device, which solves the problem that in the molding process of precast concrete cap beams, a set of thin-walled shell cap beams must be left to stand for several hours for curing after casting, and this set of molds cannot continue to be cast in the next round during the curing process.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a UHPC thin-walled shell cap beam construction device, including a construction trolley, a positioning device is provided on the front side of the construction trolley, a detachable forming mold is provided above the construction trolley, and a lifting device is provided above the construction trolley and the forming mold;

[0006] The construction trolley includes a trolley chassis, multiple roller groups are symmetrically arranged at the bottom of the trolley chassis, distance measuring sensors are provided on the front and rear sides of the trolley chassis, a trolley support plate is provided above the trolley chassis, a hydraulic buffer is provided between the trolley chassis and the roller group, and a hydraulic jack is also provided at the bottom of the trolley chassis.

[0007] In a preferred embodiment, the positioning device includes a positioning housing, a plurality of fixed feet are provided around the periphery of the positioning housing, a second hydraulic push rod is provided above the positioning housing, a flip seat is provided on one side of the positioning housing, and a flippable positioning baffle is provided between the flip seats;

[0008] Rear limit plates are symmetrically provided on both sides of the second hydraulic push rod, and a front limit plate is provided on one side of the positioning baffle.

[0009] In the preferred embodiment, a connecting rod is provided between the positioning baffle and the output end of the second hydraulic push rod, and a movable joint is provided at the output end of the second hydraulic push rod, and the movable joint is movably connected to the connecting rod.

[0010] In the preferred embodiment, the maximum forward flipping angle of the positioning baffle is 90 degrees. After the positioning baffle is retracted and lowered backward, its height is lower than the top end of the second hydraulic push rod. The height of the positioning baffle will be limited by the rear limit plate when it is retracted and lowered backward.

[0011] In the preferred embodiment, the forming mold includes a mold outer wall, the mold outer wall is U-shaped, the bottom of the inner bottom of the mold outer wall is provided with a bottom template, and swingable support templates are provided on both sides of the bottom template, and the bottom template is hinged to the support template.

[0012] In the preferred embodiment, a first hydraulic push rod is provided between the supporting template and the outer wall of the mold, and the first hydraulic push rod is used to push the supporting template to swing;

[0013] A vibrator is also provided under the outer wall supporting the formwork.

[0014] In a preferred embodiment, a plurality of drainage holes penetrating into the interior of the outer wall of the mold are provided below the outer wall of the mold, and a liftable valve plate is provided inside the drainage holes.

[0015] In a preferred embodiment, a hydraulic cylinder is connected above the valve plate, and the hydraulic cylinder is used to control the lifting and lowering of the valve plate.

[0016] In a preferred embodiment, the forming mold and the construction trolley are connected by bolts.

[0017] The utility model provides a UHPC thin-wall shell cap beam construction device. The device combines a forming mold with a construction trolley. After pouring, the cap beams that need to be cured are transported to a planned static curing area by the construction trolley and arranged in order. When the previous construction trolley drives out of the lifting equipment, the next construction trolley continues to move to the bottom of the lifting equipment to continue pouring, and continuous pouring is performed in this way. The device can perform continuous pouring and uninterrupted construction. Construction and static curing are carried out at the same time, thereby improving production efficiency and shortening the construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a cross-sectional view of the construction trolley and positioning device of the utility model;

[0020] Figure 2 This is an axonometric view of the construction trolley of the present utility model;

[0021] Figure 3 This is a front view of the construction trolley of the utility model;

[0022] Figure 4 It is a schematic diagram of the construction process of the utility model;

[0023] Figure 5 This is a schematic diagram of the maintenance of the UHPC thin-walled shell of the utility model;

[0024] Figure 6 It is an axonometric view of the positioning device of the utility model;

[0025] Figure 7 It is an axonometric view of the positioning device of the present invention from another direction.

[0026] In the figure: construction trolley 1; trolley chassis 101; hydraulic push rod 102; distance sensor 103; trolley support plate 104; roller group 105; hydraulic buffer 106; forming mold 2; mold outer wall 201; drainage hole 202; hydraulic cylinder 203; valve plate 204; support template 205; first hydraulic push rod 206; mold bottom plate 207; bottom template 208; vibrator 209; positioning device 3; positioning shell 301; second hydraulic push rod 302; positioning baffle 303; connecting rod 304; fixed foot 305; flip seat 306; front limit plate 307; rear limit plate 308; movable joint 309; lifting equipment 4, cover plate 5. DETAILED DESCRIPTION

[0027] Example 1

[0028] like Figure 1-7 As shown, a UHPC thin-walled shell cap beam construction device includes a construction trolley 1, a positioning device 3 is provided on the front side of the construction trolley 1, a detachable forming mold 2 is provided above the construction trolley 1, and a lifting device 4 is provided above the construction trolley 1 and the forming mold 2;

[0029] The construction trolley 1 includes a trolley chassis 101, a plurality of roller groups 105 are symmetrically provided below the trolley chassis 101, distance sensors 103 are provided on the front and rear sides of the trolley chassis 101, a trolley support plate 104 is provided above the trolley chassis 101, a hydraulic buffer 106 is provided between the trolley chassis 101 and the roller group 105, and a hydraulic jack 102 is also provided below the trolley chassis 101.

[0030] The construction trolley 1 is also provided with a control module and a drive device. The control module includes a remote controller and an information processing module. The information processing module is used to process the distance parameters transmitted from the distance measuring sensor 103 and control the power output of the drive device according to the distance parameters, thereby controlling the travel speed of the construction trolley 1.

[0031] In the preferred embodiment, the positioning device 3 includes a positioning housing 301, a plurality of fixed legs 305 are provided around the periphery of the positioning housing 301, a second hydraulic push rod 302 is provided above the positioning housing 301, and a flip seat 306 is provided on one side of the positioning housing 301, and a flip positioning baffle 303 is provided between the flip seats 306;

[0032] Rear limit plates 308 are symmetrically provided on both sides of the second hydraulic push rod 302 , and a front limit plate 307 is provided on one side of the positioning baffle 303 .

[0033] In the preferred embodiment, a connecting rod 304 is provided between the positioning baffle 303 and the output end of the second hydraulic push rod 302 . A movable joint 309 is provided at the output end of the second hydraulic push rod 302 . The movable joint 309 is movably connected to the connecting rod 304 .

[0034] In the preferred embodiment, the maximum forward flipping angle of the positioning baffle 303 is 90 degrees. After the positioning baffle 303 is retracted and lowered backward, its height is lower than the top of the second hydraulic push rod 302. The height of the positioning baffle 303 will be limited by the rear limit plate 308 when it is retracted and lowered backward.

[0035] In the preferred embodiment, the molding mold 2 includes a mold outer wall 201, which is U-shaped. A bottom template 208 is provided at the bottom of the inner part of the mold outer wall 201, and swingable support templates 205 are provided on both sides of the bottom template 208. The bottom template 208 is hinged to the support template 205.

[0036] In the preferred embodiment, a first hydraulic push rod 206 is provided between the support template 205 and the outer wall 201 of the mold, and the first hydraulic push rod 206 is used to push the support template 205 to swing;

[0037] A vibrator 209 is further provided below the outer wall of the supporting formwork 205 .

[0038] In a preferred embodiment, a plurality of drainage holes 202 penetrating into the interior of the mold outer wall 201 are provided below the mold outer wall 201 , and a liftable valve plate 204 is provided inside the drainage hole 202 .

[0039] In a preferred embodiment, a hydraulic cylinder 203 is connected above the valve plate 204, and the hydraulic cylinder 203 is used to control the lifting and lowering of the valve plate.

[0040] In a preferred embodiment, the forming mold 2 and the construction trolley 1 are connected by bolts.

[0041] The specific operation method of a UHPC thin-walled shell cap beam construction device is as follows: a lifting device 4 is set up on a leveled reference surface in the casting construction area, and a positioning device 3 is arranged at an appropriate position below the gantry lifting device 4. A standard travel path for a construction trolley 1 is planned below the gantry, and through-beam sensors are arranged on both sides of the gantry. The forming mold 2 to be cast is connected to the construction trolley 1 with bolts, and the construction trolley 1 is remotely controlled to move in front of the lifting device 4, so that the construction trolley 1 travels below the gantry of the lifting device 4 according to the pre-set standard travel path.

[0042] When the construction trolley 1 travels to the point where the signal is blocked between the opposing sensors, the positioning device 3 will push the second hydraulic push rod 302 forward, causing the positioning baffle 303 to flip forward. When the positioning baffle 303 flips to 90 degrees, it is blocked by the front limit plate 307. At this time, the positioning baffle 303 is upright at 90 degrees. When the construction trolley 1 travels in front of the positioning baffle 303, the distance measuring sensor 103 at the front end of the construction trolley 1 detects the front positioning baffle 303. As the distance gradually approaches, the driving device of the construction trolley 1 gradually reduces the output of the driving force, and finally the front end of the construction trolley 1 is in contact with the positioning baffle 303. The hydraulic jack 102 under the construction trolley 1 is lifted downward until it just supports the ground, completing the positioning of the construction trolley 1 and the forming mold.

[0043] After the construction trolley 1 is positioned, the first hydraulic push rod 206 pushes the supporting formwork 205 to stand vertically to the bottom formwork 208. The inner formwork is laid on the supporting formwork 205 and the bottom formwork 208. After the laying is completed, a certain amount of concrete is added to the forming mold 2. After the filling is completed, the vibrator 209 is used to level the concrete liquid surface.

[0044] The lifting equipment 4 lifts the inner mold to the top of the forming mold 2 and replaces it to allow the concrete below to gradually form. After gradually forming, the construction trolley 1 moves out of the gantry and moves to the static curing area. After waiting for the concrete to solidify in the curing area, the first hydraulic push rod 206 pulls the support formwork 205 to open a certain angle. The demoulding angle is 3°~10°;

[0045] After the demoulding process is completed, high-temperature water is injected into the forming mold 2, and a heating device is manually arranged in the forming mold 2. Finally, a cover plate 5 is placed on the top of the forming mold 2 to seal it. The temperature of the high-temperature water is 85-90°C, and the curing time is 24 hours. The cover plate 5 avoids the first hydraulic push rod 206 in the covering forming mold 2.

[0046] After the maintenance is completed, the construction trolley 1 is moved to the drainage area, the hydraulic cylinder 203 is started to lift the valve plate 204 upward, the high-temperature water in the forming mold 2 is discharged, and the construction trolley 1 is moved to the lifting equipment 4 again, and the inner mold is removed according to the casting method. Finally, the forming mold is hoisted and unloaded in the construction area, and the construction trolley 1 returns to its original position to wait for the next round of cap beam construction.

[0047] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. Equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A UHPC thin-wall shell cap beam construction device, characterized by: The invention comprises a construction trolley (1), a positioning device (3) is provided on the front side of the construction trolley (1), a detachable forming mold (2) is provided above the construction trolley (1), and a lifting device (4) is provided above the construction trolley (1) and the forming mold (2); The construction trolley (1) comprises a trolley chassis (101), a plurality of roller groups (105) are symmetrically provided below the trolley chassis (101), distance sensors (103) are provided on the front and rear sides of the trolley chassis (101), a trolley support plate (104) is provided above the trolley chassis (101), a hydraulic buffer (106) is provided between the trolley chassis (101) and the roller group (105), and a hydraulic push rod (102) is further provided below the trolley chassis (101).

2. A UHPC thin-walled shell cap beam construction device according to claim 1, characterized in that: The positioning device (3) includes a positioning housing (301), a plurality of fixed feet (305) are provided around the positioning housing (301), a second hydraulic push rod (302) is provided above the positioning housing (301), a flip seat (306) is provided on one side of the positioning housing (301), and a flippable positioning baffle (303) is provided between the flip seats (306); Rear limit plates (308) are symmetrically provided on both sides of the second hydraulic push rod (302), and a front limit plate (307) is provided on one side of the positioning baffle (303).

3. A UHPC thin-walled shell cap beam construction device according to claim 2, characterized in that: A connecting rod (304) is provided between the positioning baffle (303) and the output end of the second hydraulic push rod (302). A movable joint (309) is provided at the output end of the second hydraulic push rod (302). The movable joint (309) is movably connected to the connecting rod (304).

4. A UHPC thin-walled shell cap beam construction device according to claim 3, characterized in that: The maximum angle of the positioning baffle (303) when flipped forward is 90 degrees. After the positioning baffle (303) is retracted backward, its height is lower than the top end of the second hydraulic push rod (302). The height of the positioning baffle (303) when retracted backward will be limited by the rear limit plate (308).

5. The UHPC thin-walled shell cap beam construction device according to claim 1, characterized in that: The forming mold (2) comprises a mold outer wall (201), the mold outer wall (201) is U-shaped, a bottom template (208) is provided at the bottom of the interior of the mold outer wall (201), swingable support templates (205) are provided on both sides of the bottom template (208), and the bottom template (208) and the support template (205) are hinged.

6. The UHPC thin-walled shell cap beam construction device according to claim 5, characterized in that: A first hydraulic push rod (206) is provided between the supporting template (205) and the outer wall (201) of the mold, and the first hydraulic push rod (206) is used to push the supporting template (205) to swing; A vibrator (209) is further provided below the outer wall of the supporting formwork (205).

7. The UHPC thin-walled shell cap beam construction device according to claim 5, characterized in that: A plurality of drainage holes (202) extending through the interior of the mold outer wall (201) are provided below the mold outer wall (201), and a liftable valve plate (204) is provided inside the drainage holes (202).

8. The UHPC thin-walled shell cap beam construction device according to claim 1, characterized in that: A hydraulic cylinder (203) is connected above the valve plate (204), and the hydraulic cylinder (203) is used to control the lifting and lowering of the valve plate.

9. The UHPC thin-walled shell cap beam construction device according to claim 1, characterized in that: The forming mold (2) and the construction trolley (1) are connected via bolts.