Fabricated capping beam and pier column construction operation protection platform

Abstract

The utility model provides an assembly type cover beam and pier column construction operation protection platform, which belongs to the technical field of cover beam and pier column construction, and comprises a platform, the inside of the platform is of a hollow structure, an adjusting mechanism is arranged in the platform, and a protection mechanism is arranged on the top surface of the platform; the adjusting mechanism comprises a motor fixedly connected to the side wall of the platform, two bidirectional threaded rods are rotationally connected to the two ends of the interior of the platform, transmission wheels are fixedly connected to the two bidirectional threaded rods, and the two transmission wheels are in transmission connection through a belt. The adjusting mechanism is arranged, the construction gap can be controlled within the safety gap range of 20 cm, the safety performance of the protection platform is improved, and meanwhile the customized construction cost is reduced; and meanwhile, a protection mechanism is arranged, so that a worker can fold or unfold and fix the transverse protective fence and the vertical protective fence conveniently, the mounting and dismounting time of the protective fence is saved, and secondary use is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of cap beam and pier column construction, and in particular relates to an assembled cap beam and pier column construction operation protection platform. Background Art

[0002] The construction of cap beams and piers involves high-altitude operations, and protective platforms need to be set up to protect the workers. Traditional safety protection measures for cap beams and pier construction mainly use methods such as setting up scaffolding protection and using simple fences welded with steel bars.

[0003] In the design stage before bridge construction, the distance between adjacent piers or the length of the cap beam is often fixed or regularly the same. In response to different construction conditions, the inner diameter of the pier or the width of the cap beam will change. When encountering piers with smaller inner diameters or cap beams with narrower widths, the traditional construction protection platform has a fixed structure and a large reserved construction area in the middle, which will lead to a large construction gap between the protection platform and the pier or cap beam. There are great safety hazards for construction workers working on top. Customizing a construction platform with a corresponding width according to road conditions will increase construction costs.

[0004] Existing guardrails are generally fixed by simple methods such as steel bar welding, which makes the installation and disassembly process inconvenient, and is cumbersome and time-consuming when needed for secondary use, increasing construction time. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an assembled cap beam and pier column construction operation protection platform.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A platform, wherein the interior of the platform is a hollow structure, an adjusting mechanism is arranged inside the platform, and a protective mechanism is arranged on the top surface of the platform;

[0008] The adjusting mechanism includes a motor fixedly connected to the side wall of the platform, two bidirectional threaded rods are rotatably connected at both ends of the platform, and the two bidirectional threaded rods are fixedly connected to transmission wheels. The two transmission wheels are connected by belt transmission, and one of the two bidirectional threaded rods is fixedly connected to the output end of the motor. The spiral directions of the threads at both ends of the two bidirectional threaded rods are opposite. Two hidden plates are threadedly matched with the bidirectional threaded rods, and the two hidden plates are respectively threadedly matched with the two ends of the bidirectional threaded rod.

[0009] The protective mechanism includes columns fixedly connected to the four corners of the top surface of the platform, a first rotating rod and a second rotating rod are rotatably connected between the columns, a horizontal guardrail and a vertical guardrail are respectively fixedly connected to the first rotating rod and the second rotating rod, and a protective net is fixedly connected to the horizontal guardrail and the vertical guardrail, and the horizontal guardrail and the vertical guardrail are fixedly connected to the columns through a fixing component.

[0010] Preferably, the fixing assembly includes threaded holes opened on the column, the transverse guardrail and the vertical guardrail, the transverse guardrail is threadedly connected to the column through a first high-strength bolt, and the vertical guardrail is threadedly connected to the column through a second high-strength bolt.

[0011] Preferably, the platform comprises I10 I-beams and I16 I-beams, and the I10 I-beams and I16 I-beams are fixedly connected by high-strength bolts.

[0012] Preferably, a plurality of threaded holes are provided on the top surface of the platform, and a plurality of protective plates are movably connected to the top surface of the platform through bolts.

[0013] Preferably, the platform side wall is provided with a vertical Z-shaped ladder, the bottom end of the vertical Z-shaped ladder is fixedly connected to the ground, and the top end side wall of the vertical Z-shaped ladder is fixedly connected to the platform side wall.

[0014] Preferably, the hidden plate is slidably connected to the hollow structure of the platform, and a lubricating coating is provided on the hidden plate.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The utility model is provided with an adjustment mechanism, which drives the two-way threaded rod to rotate through a motor to extend the hidden plate, thereby controlling the construction gap within a safe gap range of 20 cm, thereby improving the safety performance of the protection platform and reducing the customized construction cost. At the same time, a protection mechanism is provided, which folds or unfolds the horizontal guardrail and the vertical guardrail by adjusting the first high-strength bolt and the second high-strength bolt on the column, thereby saving the time for installing and disassembling the guardrail and facilitating secondary use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of an upward analysis of an assembled cap beam and pier column construction protection platform proposed by the utility model;

[0018] Figure 2 for Figure 1 A magnified image of point A;

[0019] Figure 3 for Figure 1 A magnified view of point B;

[0020] Figure 4 for Figure 1 The utility model provides a schematic diagram of the upward structure of an assembled cap beam and pier column construction protection platform.

[0021] In the figure: 1 platform, 2 motor, 3 bidirectional threaded rod, 4 transmission wheel, 5 belt, 6 hidden plate, 7 column, 8 first rotating rod, 9 second rotating rod, 10 horizontal guardrail, 11 vertical guardrail, 12 protective net, 13I10 I-beam, 14I16 I-beam, 15 protective plate, 16 vertical Z-type ladder, 17 first high-strength bolt, 18 second high-strength bolt. DETAILED DESCRIPTION

[0022] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Reference Figure 1-Figure 4 , an assembled cap beam and pier column construction protection platform, including a platform 1, the platform 1 includes an I10 I-beam 13 and an I16 I-beam 14, the I10 I-beam 13 and the I16 I-beam 14 are fixedly connected by high-strength bolts, a plurality of threaded holes are opened on the top surface of the platform 1, and a plurality of protective plates 15 are movably connected on the top surface of the platform 1 by bolts. When the pier column is constructed, the protective plate 15 can be installed between the two pier columns to improve the safety performance. When the cap beam is constructed, the protective plate 15 can be disassembled for standby use to improve the application range of the platform. A vertical Z-shaped ladder 16 is arranged on the side wall of the platform 1, the bottom end of the vertical Z-shaped ladder 16 is fixedly connected to the ground, and the top side wall of the vertical Z-shaped ladder 16 is fixedly connected to the side wall of the platform 1. The staff can go up and down the platform 1 through the vertical Z-shaped ladder 16. The interior of the platform 1 is a hollow structure, an adjustment mechanism is arranged in the platform 1, and a protective mechanism is arranged on the top surface of the platform 1;

[0024] The adjustment mechanism includes a motor 2 fixedly connected to the side wall of the platform 1, and two bidirectional threaded rods 3 are rotatably connected at both ends of the platform 1. The two bidirectional threaded rods 3 are fixedly connected to a transmission wheel 4, and the two transmission wheels 4 are connected by a belt 5. One of the two bidirectional threaded rods 3 is fixedly connected to the output end of the motor 2, and the spiral directions of the threads at both ends of the two bidirectional threaded rods 3 are opposite. Two hidden plates 6 are threadedly matched on the bidirectional threaded rods 3, and the two hidden plates 6 are respectively threadedly matched with the two ends of the bidirectional threaded rods 3. The hidden plates 6 are slidably connected to the hollow structure of the platform 1, and a lubricating coating is provided on the hidden plates 6.

[0025] When in use, the bidirectional threaded rod 3 is driven to rotate by the motor 2, and the other bidirectional threaded rod 3 is driven to rotate synchronously under the transmission effect of the belt 5, so that the hidden plate 6 on the bidirectional threaded rod 3 is extended or retracted, and the construction gap can be accurately controlled within the safety gap range of 20 cm, thereby improving the safety performance of the protection platform and reducing the customized construction cost.

[0026] The protective mechanism includes columns 7 fixedly connected to the four corners of the top surface of the platform 1, and a first rotating rod 8 and a second rotating rod 9 are rotatably connected between the columns 7. A horizontal guardrail 10 and a vertical guardrail 11 are fixedly connected to the first rotating rod 8 and the second rotating rod 9 respectively. A protective net 12 is fixedly connected to the horizontal guardrail 10 and the vertical guardrail 11. Threaded holes are provided on the columns 7, the horizontal guardrail 10 and the vertical guardrail 11. The horizontal guardrail 10 is threadedly connected to the column 7 through a first high-strength bolt 17, and the vertical guardrail 11 is threadedly connected to the column 7 through a second high-strength bolt 18.

[0027] When in use, the staff removes or installs the first high-strength bolts 17 and the second high-strength bolts 18 on the column 7, and folds or unfolds the transverse guardrail 10 and the vertical guardrail 11 to save the time of installing and disassembling the guardrail and facilitate secondary use.

[0028] The functional principle of the utility model can be explained through the following operation modes:

[0029] When in use, the bidirectional threaded rod 3 is driven to rotate by the motor 2, and the other bidirectional threaded rod 3 is driven to rotate synchronously under the transmission effect of the belt 5, so that the hidden plate 6 on the bidirectional threaded rod 3 is extended or retracted, and the construction gap can be accurately controlled within the safety gap range of 20 cm, thereby improving the safety performance of the protection platform and reducing the customized construction cost.

[0030] When in use, the staff removes or installs the first high-strength bolts 17 and the second high-strength bolts 18 on the column 7, and folds or unfolds the transverse guardrail 10 and the vertical guardrail 11 to save the time of installing and disassembling the guardrail and facilitate secondary use.

[0031] According to the construction status of the G329 Bengbu Changhuaiwei Huaihe River Bridge to Huaiyuan section first-class highway project, the staff verified the strength of the pier and cap beam construction platform and the overall stability of the platform, as follows:

[0032] Pier column and cap beam construction work platform:

[0033] (1) Regional wind load: 350N / m 2 ;

[0034] (2) Top horizontal load: 1KN / m;

[0035] (3) Two small vibrating machines: 300N;

[0036] (4) Considering three people working at the same time (75 kg / person), vertical load: 2250 N;

[0037] ① Guardrail strength verification:

[0038] The guardrail is mainly designed to withstand wind loads and horizontal thrusts that may be generated by construction workers, as follows:

[0039] Bending moment caused by wind load and thrust: M = 1000*1.2+420*0.6 = 1452 (N·m);

[0040] The calculated moment of inertia of the square hollow steel tube is: y =273584mm 4 ;

[0041] Maximum normal stress: After checking the specification, [σ]=210MPa, which meets the strength requirements.

[0042] ②I10 I-beam strength verification:

[0043] I10 I-beam is mainly considered to bear the vertical load and self-weight of personnel and construction machinery, as follows: Bending moment caused by the self-weight load of construction personnel and machinery:

[0044] M=2550*1.6*0.25+120*1.6 2 *0.125=1096.8(N·m)

[0045] According to the data, the section moment of inertia of I10 I-beam is: y =245*10 4 mm 4 ;

[0046] Maximum normal stress: After checking the specification, [σ]=210MPa, which meets the strength requirements.

[0047] Stability verification: After calculation, φ h =0.99, γx=1.05, f=210MPa.

[0048]

[0049] Build your own stability to meet requirements.

[0050] ③I16 I-beam strength verification:

[0051] I16 I-beam is mainly considered to bear the vertical load and self-weight of personnel and construction machinery, as follows:

[0052] Bending moment caused by the deadweight load of construction personnel and machinery:

[0053] M=2550*6.0*0.25+300*6.0 2 *0.125=5175(N·m)

[0054] According to the data, the section moment of inertia of I16 I-beam is: y =1130*10 4 mm 4 ;

[0055] Maximum normal stress:

[0056] After checking the specification, [σ]=210MPa, which meets the strength requirements.

[0057] Stability verification:

[0058] After calculation, φ h =0.64, γx=1.05, f=210MPa.

[0059]

[0060] Build your own stability to meet requirements.

[0061] After calculation: the strength of the guardrail meets the requirements, the strength and stability of I16 I-beams and I10 I-beams meet the requirements, and the overall stability of the pier and cap beam construction protection platform under wind loads meets the requirements.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An assembled cap beam and pier column construction protection platform, characterized in that: include: A platform (1), the interior of the platform (1) is a hollow structure, an adjustment mechanism is provided inside the platform (1), and a protection mechanism is provided on the top surface of the platform (1); The adjustment mechanism comprises a motor (2) fixedly connected to the side wall of the platform (1); two bidirectional threaded rods (3) are rotatably connected at both ends of the platform (1); the two bidirectional threaded rods (3) are fixedly connected to a transmission wheel (4); the two transmission wheels (4) are connected by a belt (5); one of the two bidirectional threaded rods (3) is fixedly connected to the output end of the motor (2); the spiral directions of the threads at the two ends of the two bidirectional threaded rods (3) are opposite; two hidden plates (6) are threadedly matched on the bidirectional threaded rods (3); the two hidden plates (6) are respectively threadedly matched with the two ends of the bidirectional threaded rods (3).

2. The assembled cap beam and pier construction protection platform according to claim 1 is characterized in that: in: The protective mechanism comprises columns (7) fixedly connected to the four corners of the top surface of the platform (1); a first rotating rod (8) and a second rotating rod (9) are rotatably connected between the columns (7); a transverse guardrail (10) and a vertical guardrail (11) are respectively fixedly connected to the first rotating rod (8) and the second rotating rod (9); a protective net (12) is fixedly connected to the transverse guardrail (10) and the vertical guardrail (11); threaded holes are provided on the columns (7), the transverse guardrail (10) and the vertical guardrail (11); the transverse guardrail (10) is threadedly connected to the columns (7) through a first high-strength bolt (17); and the vertical guardrail (11) is threadedly connected to the columns (7) through a second high-strength bolt (18).

3. The assembled cap beam and pier construction protection platform according to claim 1 is characterized in that: in: The platform (1) comprises an I10 I-beam (13) and an I16 I-beam (14), and the I10 I-beam (13) and the I16 I-beam (14) are fixedly connected by high-strength bolts.

4. The assembled cap beam and pier construction protection platform according to claim 1 is characterized in that: in: A plurality of threaded holes are provided on the top surface of the platform (1), and a plurality of protective plates (15) are fixedly connected to the top surface of the platform (1) by means of bolts.

5. The assembled cap beam and pier construction protection platform according to claim 1 is characterized in that: in: The side wall of the platform (1) is provided with a vertical Z-shaped ladder (16), the bottom end of the vertical Z-shaped ladder (16) is fixedly connected to the ground, and the top side wall of the vertical Z-shaped ladder (16) is fixedly connected to the side wall of the platform (1).

6. The assembled cap beam and pier construction protection platform according to claim 1 is characterized in that: in: The hidden plate (6) is slidably connected in the hollow structure of the platform (1), and a lubricating coating is provided on the hidden plate (6).

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