Mobile assembled revetment pier construction scaffold and construction method thereof
By moving the prefabricated shore protection pier construction scaffolding, the rapid movement and continuous construction of the scaffolding is achieved using cantilever beams and track systems, solving the problem of frequent construction and demolition in traditional construction, improving construction efficiency and safety, and is suitable for multi-stage shore protection construction.
Patent Information
- Application Number
- CN202010992109.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-09-21
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2040-09-21
AI Technical Summary
During the construction of the bank protection construction, especially during the pouring of concrete piers, scaffolding needs to be frequently built and demolished, resulting in low construction efficiency, high cost and high risk. In addition, traditional methods cannot achieve rapid continuous construction, making it difficult to meet the construction needs of long-distance multi-stage bank protection. .
A mobile prefabricated shore guard pier construction scaffolding was designed. By setting tracks and cantilever beams with walking wheels at the top of the pile foundation, the scaffolding was moved and continuously built, and multi-layer foot pedals and guardrail structures were provided to ensure the safety of construction personnel. , and through the removable tie rod and connecting rod connection, the scaffolding can be flexibly moved and fixed construction.
The rapid construction of multiple sections of the shore protection pier columns along the river bank has been achieved, the construction efficiency has been improved, the construction time and cost has been saved, and a safe and reliable construction environment has been provided, and it is suitable for the shore protection construction of inland rivers or offshore.
Smart Images
Figure CN111979977B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of riverbank protection construction, in particular to a mobile assembled revetment pier construction scaffold and a construction method thereof. Background Art
[0002] Bank protection is an engineering measure to artificially reinforce the original coastal slope to prevent the invasion and scouring of waves and water flow and the action of groundwater to maintain the stability of the shoreline. The outer side is affected by waves and water flow, and the inner side is also subject to soil pressure and groundwater pressure. Vertical hard bank protection is a common form of bank protection. Its bank wall structure can resist the scouring and invasion of water waves, provide reliable bearing capacity, and maintain the safe use of the overall bank protection. It can also create the requirement that people can get close to the water at the shore, so it is widely used in the urban riverside environment. During construction, the pile foundation erected on the edge of the waterside is used as the foundation, and the abutment and piers are set on top. Finally, the crown beam is connected in series above the pier, and the retaining plate is laid on the inner side of the pier to prevent the landslide of the shore soil.
[0003] Bank protection construction is a time-consuming, difficult and dangerous construction project. Especially when pouring concrete for vertical concrete piers, it is usually necessary to build a full-height scaffolding on the river bank until it reaches the top of the pier, then arrange and weld the steel bar skeleton, install the formwork, etc., and finally pour the concrete. After the concrete solidifies and the formwork is removed for maintenance, the construction of the pier is completed. When the pouring of the pier of a section of the bank protection is completed, the scaffolding needs to be dismantled and transported to the next section of the bank protection construction site, and the scaffolding needs to be rebuilt and the construction is repeated. This results in low overall efficiency of the bank protection construction and is time-consuming and labor-intensive. Summary of the invention
[0004] A mobile assembled revetment pier construction scaffold can realize the rapid and continuous construction of pier columns in river bank protection construction, avoiding the process of repeatedly building scaffolds, and has the advantages of greatly shortening the project progress, facilitating construction, and saving construction costs.
[0005] The technical solution is achieved through the following:
[0006] The mobile assembled revetment pier construction scaffolding has a cap at the top of the pile foundation, and tracks are set at the edges of both sides of the cap. Cantilever beams with running wheels are evenly arranged on the tracks. The cantilevered parts of the cantilever beams extend out of the cap. The cantilever beams on both sides are respectively connected to the scaffolds and extend upward, and the footrests are fixed on the scaffolds. The scaffolds on both sides, which are built with the cantilever beams as the foundation, provide construction workers with space for construction operations around the piers, and play the same role as the traditional full-floor scaffolding. In the present invention, the length of the scaffolding can be used for the construction of several piers at the same time, and it is optimal to be used for the construction of four piers at the same time; the cantilever beam can move on the track by relying on the running wheels installed at the bottom. The track can be laid after the pile foundation and the cap are completed. The laying length can be the full length of the cap. When the position of the cantilever beam needs to be positioned, the position of the running wheel can be fixed by using a wedge block.
[0007] The scaffolding is composed of multiple layers, each layer is provided with footboards, the inner side of the footboards is provided with connecting frame guardrails, and the outer side is provided with scissor brace guardrails. The footboards provide a basis for construction workers to walk on the scaffolding, and the connecting frame guardrails and scissor brace guardrails can not only provide safety protection for construction workers, but also its connecting frame and scissor brace also serve as a supplement to the scaffolding to improve the integrity and connection rigidity of the scaffolding; the footboards are all aluminum alloy profile pedals with anti-skid patterns on the surface, and have the advantages of light weight, high strength and anti-skid.
[0008] A tie rod is provided in the middle between the cantilever beams on both sides, and the tie rod is a detachable structure; a foot pedal can be laid between two adjacent tie rods. The tie rod plays the role of connecting the scaffolding structures on both sides, so that the scaffoldings on both sides are connected into one; the tie rod is removed when the scaffolding is in a walking and moving state to prevent it from colliding and interfering with the cast piers, and the tie rod is installed when the scaffolding is in a fixed construction state.
[0009] The top of the cantilever beams on both sides is connected by a truss, which has two connecting rods, and the lower part is a detachable connecting rod; a footrest can be laid between two adjacent trusses. The truss also serves to connect the scaffolding structures on both sides. The horizontal height of the lower connecting rod is higher than the top of the pier column. When the scaffolding is in the walking and moving state, it can be removed to realize the movement of the scaffolding. When the scaffolding is in the fixed construction state, the lower connecting rod is installed to increase the structural strength of the truss.
[0010] The two cantilever beams are grouped together, and a connecting frame guardrail and a scissor brace guardrail are arranged between the two cantilever beams; each group of cantilever beams is connected by a scaffold and a scissor brace guardrail. The ends of the two cantilever beams are connected, and the cantilever beams, the connecting frame guardrail and the scissor brace guardrail form a frame structure, which has better structural stability and prevents structural instability and deformation.
[0011] The cantilever beam is a trapezoid, the upper bottom edge of the trapezoid is installed on the inner side, the lower bottom edge of the trapezoid is installed on the outer side, and a plurality of weight-reducing holes are arranged in the middle of the trapezoid. The cantilever beam shape with a trapezoidal shape that is inclined upward can achieve effective support of the cantilever beam to the scaffolding, prevents the cantilever beam from bending and deformation, and has the technical characteristics of being light and high-strength.
[0012] The connecting frame guardrail is composed of a V-shaped connecting frame and a guard plate; it has the dual functions of protection and reinforcement.
[0013] The scissor support guardrail is composed of an X-shaped connecting frame and a guard plate; it has the dual functions of protection and reinforcement.
[0014] The construction method of the mobile assembled revetment pier construction scaffolding comprises the following steps:
[0015] (1) Pile foundation and cap are cast on the river bank. After the cap is maintained, tracks are laid on both sides of the cap;
[0016] (2) Arrange several cantilever beams with running wheels on the track. The running wheels are positioned on the track with wedge blocks. Then, build scaffolding upwards on the cantilever beams until it reaches above the preset pier height. Use trusses to connect the scaffolding on both sides at the top of the scaffolding. Use connecting rods to connect the scaffolding on both sides in the middle of the scaffolding. Then install foot pedals, connecting frame guardrails and scissor brace guardrails.
[0017] (3) Construction workers can use scaffolding to install the steel cage and casting formwork of the pier column and cast concrete on the pier column;
[0018] (4) After the pier column is cast and the formwork is removed for curing, the detachable connecting rods of the truss, the foot pedals associated with the truss, the middle tie rods, and the foot pedals associated with the tie rods are removed;
[0019] (5) Remove the wedge blocks on the track and move the scaffolding as a whole in the direction of construction progress until the scaffolding reaches the position where the new piers need to be cast, stop placing the wedge blocks to position them, and install the detachable connecting rods, tie rods, and their associated foot pedals of the truss;
[0020] (6) Repeat steps (2) to (5) until all the piers on one side of the river bank are completed, and then proceed to install the cap beam and retaining wall.
[0021] The present invention has outstanding substantive features and remarkable progress:
[0022] 1. The present invention can replace the traditional method of building a full-house scaffolding in the concrete pouring construction of the river bank pier, realize the rapid construction of a large number of river bank piers along the river bank over a long distance, facilitate the section-by-section flow operation, improve the construction efficiency, save a lot of energy and time of the construction workers, and save a lot of construction costs;
[0023] 2. The scaffolding of the present invention is easy to move, and the lower connecting rod and the pull rod of the truss are connected by bolt connection. The disassembly and installation can be completed by using common tools, and the disassembly and installation are convenient.
[0024] 3. The overall structure of the present invention is firm and reliable, and the protective measures are complete. Construction workers can carry out construction at the pier column position from multiple angles and directions on the scaffolding platform, which is safe and reliable.
[0025] 4. The present invention can also be used for the construction of revetment piers in inland rivers or offshore, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention (fixed construction state);
[0027] Figure 2 This is a schematic diagram of the connection structure of a cantilever beam unit;
[0028] Figure 3 is a schematic diagram of a truss unit structure;
[0029] Figure 4 This is a schematic diagram of the main viewing direction structure of the present invention (fixed construction state);
[0030] Figure 5 for Figure 4 The enlarged structural diagram of position Ⅰ in the middle;
[0031] Figure 6 It is a schematic diagram of the structure of the present invention in a side view direction;
[0032] Figure 7 This is a schematic diagram of the structure of the present invention in a top view (fixed construction state);
[0033] Figure 8 It is a schematic diagram of the overall structure of the present invention (mobile state);
[0034] Fig. 9 This is a schematic diagram of the main viewing direction structure of the present invention (moving state);
[0035] Fig.10 This is a schematic diagram of the structure of the present invention in a top view (moving state);
[0036] Fig.11 This is a schematic diagram of the main viewing direction structure of Example 2 (fixed construction state);
[0037] Fig.12 This is a schematic diagram of the structure after the revetment is completed;
[0038] The serial numbers and component names in the figure are: 1. Pile foundation; 2. Cap; 3. Pier; 4. Cap beam; 5. Retaining board; 6. Track; 7. Travel wheel; 8. Cantilever beam; 81. Connecting frame guardrail; 82. Scissors-braced guardrail; 9. Scaffolding; 91. Pull rod; 92. Truss; 921. Removable connecting rod; 93. Foot pedal. DETAILED DESCRIPTION
[0039] Example 1
[0040] A mobile assembled revetment pier construction scaffolding has a single-row pile foundation 1, a cap 2 at the top of the pile foundation 1, tracks 6 at both side edges of the cap 2, cantilever beams 8 with running wheels 7 evenly distributed on the tracks 6, cantilevered portions of the cantilever beams 8 extend out of the outer side of the cap 2, scaffolds 9 are respectively connected to the cantilever beams 8 on both sides and extend upward, and foot pedals 93 are fixed on the scaffolds 9.
[0041] The scaffolding 9 is composed of multiple layers, each layer is provided with a footrest 93, the inner side of the footrest 93 is provided with a connecting frame guardrail 81, and the outer side is provided with a scissor support guardrail 82.
[0042] A pull rod 91 is provided in the middle between the cantilever beams 8 on both sides for connection, and the pull rod 91 is a detachable structure; a foot pedal 93 can be laid between two adjacent pull rods 91 .
[0043] A truss 92 is arranged on the top of the cantilever beams 8 on both sides for connection. The truss 92 has two connecting rods, and the lower part is a detachable connecting rod 921. A footrest 93 can be laid between two adjacent trusses 92.
[0044] The cantilever beams 8 are grouped as two, and a connecting frame guardrail 81 and a scissors-braced guardrail 82 are arranged between the two cantilever beams 8 to connect them; each group of cantilever beams 8 is connected by a scaffolding 9 and a scissors-braced guardrail 82.
[0045] The cantilever beam 8 is trapezoidal, the upper bottom edge of the trapezoid is installed on the inner side, the lower bottom edge of the trapezoid is installed on the outer side, and a plurality of weight-reducing holes are arranged in the middle of the trapezoid.
[0046] The connecting frame guardrail 81 is composed of a V-shaped connecting frame and a guard plate.
[0047] The scissors support guardrail 82 is composed of an X-shaped connecting frame and a guard plate.
[0048] The construction method of the mobile assembled revetment pier construction scaffolding comprises the following steps:
[0049] (1) Pile foundation and cap are cast on the river bank. After the cap is maintained, tracks are laid on both sides of the cap;
[0050] (2) Arrange several cantilever beams with running wheels on the track. The running wheels are positioned on the track with wedge blocks. Then, build scaffolding upwards on the cantilever beams until it reaches above the preset pier height. Use trusses to connect the scaffolding on both sides at the top of the scaffolding. Use connecting rods to connect the scaffolding on both sides in the middle of the scaffolding. Then install foot pedals, connecting frame guardrails and scissor brace guardrails.
[0051] (3) Construction workers can use scaffolding to install the steel cage and casting formwork of the pier column and cast concrete on the pier column;
[0052] (4) After the pier column is cast and removed for curing, the detachable connecting rods of the truss, the foot pedals associated with the truss, the middle tie rods, and the foot pedals associated with the tie rods are removed;
[0053] (5) Remove the wedge blocks on the track and move the scaffolding as a whole in the direction of construction progress until the scaffolding reaches the position where the new piers need to be cast, stop placing the wedge blocks to position them, and install the detachable connecting rods, tie rods, and their associated foot pedals of the truss;
[0054] (6) Repeat steps (2) to (5) until all the piers on one side of the river bank are completed, and then proceed to install the cap beam and retaining wall.
[0055] Example 2
[0056] The difference from Example 1 is that the pile foundation is in double rows, and the rest of the structure is the same as Example 1.
Claims
1. A construction method for a mobile assembled revetment pier construction scaffold, characterized in that it comprises the following steps: (1) Pile foundation and cap are cast on the river bank. After the cap is maintained, tracks are laid on both sides of the cap; (2) Arrange several cantilever beams with running wheels on the track. The running wheels are positioned on the track with wedge blocks. Then, build scaffolding upwards on the cantilever beams until it reaches above the preset pier height. Use trusses to connect the scaffolding on both sides at the top of the scaffolding. Use connecting rods to connect the scaffolding on both sides in the middle of the scaffolding. Then install foot pedals, connecting frame guardrails and scissor brace guardrails. (3) Construction workers can use scaffolding to install the steel cage and casting formwork of the pier column and cast concrete on the pier column; (4) After the pier column is cast and the formwork is removed for curing, the detachable connecting rods of the truss, the foot pedals associated with the truss, the middle tie rods, and the foot pedals associated with the tie rods are removed; (5) Remove the wedge blocks on the track and move the scaffolding as a whole in the direction of construction progress until the scaffolding reaches the position where the new piers need to be cast, stop placing the wedge blocks to position them, and install the detachable connecting rods, tie rods, and their associated foot pedals of the truss; (6) Repeat steps (2) to (5) until all the piers on one side of the river bank are completed, and then proceed to the installation of the cap beam and retaining wall; The top of the pile foundation (1) is a cap (2), and tracks (6) are arranged at the edges of both sides of the cap (2). Cantilever beams (8) with running wheels (7) are evenly arranged on the tracks (6), and the cantilevered parts of the cantilever beams (8) extend outward from the cap (2). The cantilever beams (8) on both sides are respectively connected to scaffoldings (9) extending upward, and footrests (93) are fixed on the scaffoldings (9); The cantilever beams (8) on both sides are connected by trusses (92) at the top, the trusses (92) have two connecting rods, and the lower part is a detachable connecting rod (921); a footrest (93) is laid between two adjacent trusses (92); The cantilever beam (8) is trapezoidal in shape, the upper bottom edge of the trapezoid is mounted on the inner side, the lower bottom edge of the trapezoid is mounted on the outer side, and a plurality of weight-reducing holes are arranged in the middle of the trapezoid.
2. The construction method of the mobile assembled revetment pier construction scaffold according to claim 1 is characterized by: The scaffolding (9) is composed of multiple layers, each layer is provided with a footrest (93), a connecting frame guardrail (81) is provided on the inner side of the footrest (93), and a scissor support guardrail (82) is provided on the outer side.
3. The construction method of the mobile assembled revetment pier construction scaffold according to claim 1 is characterized by: A pull rod (91) is provided in the middle between the cantilever beams (8) on both sides for connection, and the pull rod (91) is a detachable structure; a foot pedal (93) is provided between two adjacent pull rods (91).
4. The construction method of the mobile assembled revetment pier construction scaffold according to claim 1 is characterized by: Two cantilever beams (8) are grouped together, and a connecting frame guardrail (81) and a scissor brace guardrail (82) are arranged between the two cantilever beams (8) to connect them; each group of cantilever beams (8) is connected via a scaffold (9) and a scissor brace guardrail (82).
5. The construction method of the mobile assembled revetment pier construction scaffold according to claim 2 is characterized by: The connecting frame guardrail (81) is composed of a V-shaped connecting frame and a guard plate.
6. The construction method of the mobile assembled revetment pier construction scaffold according to claim 2 is characterized by: The scissor brace guardrail (82) is composed of an X-shaped connecting frame and a guard plate.