Cover beam prefabricating method

Abstract

The capping beam prefabricating method comprises the steps that profile steel matched with a prefabricated capping beam in shape is manufactured, and a plurality of sets of web members used for supporting are arranged in the profile steel in the length direction; providing two groups of movable auxiliary devices; the two sets of movable auxiliary devices are moved to the two ends of the profile steel correspondingly, and the profile steel is hung and fixed to the lower portion of the top plate through the mounting assembly; the profile steel is transported to a pouring position through the two sets of movable auxiliary devices, the mounting frame is adjusted to ascend through the lifting assembly, and the bottom end of the supporting assembly is adjusted to descend through the lifting assembly, so that the positions of the movable auxiliary devices are fixed; binding a plurality of groups of reinforcing steel bars on the outer side of the profile steel, and erecting formworks below and around the profile steel; and carrying out a concrete pouring process. In the capping beam prefabricating process, the use stability of the profile steel is guaranteed through the auxiliary assembly, and by supporting the profile steel, reinforcing steel bars can be bound rapidly, a formwork can be erected rapidly, and rapid prefabricating forming operation can be assisted conveniently.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and particularly relates to a cap beam prefabrication method. Background Art

[0002] The C-type material yard unloader platform is a key facility for unloading operations. Its main functions include: Material Transfer: Providing an operating platform for unloaders, allowing materials to be transferred from transport vehicles to the material yard storage area. Precision Unloading: Unloaders travel on the platform to unload ore, coal, and other materials as needed to a designated location for subsequent storage or processing. Connecting the Transportation System: The platform connects front-end transport vehicles with back-end material yard conveying equipment, ensuring the continuity of the material transportation process.

[0003] During the construction of the C-type material yard unloading platform, the platform's cap beam is cast on site. During the on-site casting construction process, a large number of people are required to participate in operations such as formwork installation and concrete pouring, and tower cranes, concrete conveying equipment, etc. are required. The machinery rental and labor costs are high, which increases the cost of construction. In addition, during the on-site casting construction process, formwork erection, steel bar binding, concrete pouring and maintenance must be completed on site. The process is cumbersome and depends on weather conditions (work needs to be stopped in case of bad weather). The overall construction period is long. In addition, the cap beam bears a large weight, and the current cap beam is not strong enough. Summary of the Invention

[0004] The purpose of the present invention is to provide a cap beam prefabrication method, which can solve the problems in the prior art of long construction period of cap beams cast on site and insufficient strength of the cap beams.

[0005] The technical solutions adopted by the present invention are as follows:

[0006] A cap beam prefabrication method comprises the following steps:

[0007] Producing a steel section that matches the shape of the prefabricated cap beam, with multiple sets of web members for support arranged inside the steel section along the length direction;

[0008] Two sets of movable auxiliary devices are provided, the movable auxiliary devices include a top plate, and a mounting assembly for detachably connecting to the steel section is provided on the top plate; two sets of support structures are symmetrically provided below the top plate, and each set of the support structures includes a mounting frame and a support assembly, the lower end of the mounting frame is equipped with a moving wheel, and a lifting assembly for lifting the mounting frame is provided on the top plate, and the bottom end of the support assembly is retractable. A linkage assembly for auxiliary linkage is provided between the support assembly and the mounting frame in each set of the support structures, and when the lifting assembly drives the mounting frame to move in one direction, the bottom end of the support assembly moves in the opposite direction under the drive of the linkage assembly;

[0009] Move the two sets of movable auxiliary devices to the two ends of the steel section respectively, and hang and fix the steel section below the top plate through the mounting assembly;

[0010] The steel sections are transported to the casting location using two sets of movable auxiliary devices, and the mounting frame is raised by adjusting the lifting assembly, and the bottom end of the support assembly is lowered, so that the position of the movable auxiliary devices is fixed;

[0011] Tie multiple sets of steel bars on the outside of the steel section, and support formwork below and around the steel section;

[0012] The concrete pouring process is carried out, and the pouring is stopped when the concrete is poured to a height higher than the set height of the bottom of the steel section. After the concrete is solidified, the two sets of the movable auxiliary devices are removed, and then the pouring is continued to form the prefabricated cap beam.

[0013] In some embodiments, the lower end of the mounting frame is connected to the moving wheel via a mounting seat.

[0014] In some embodiments, the mounting assembly includes a threaded rod threadably connected to the top plate, a driving wheel is fixed to the upper end of the threaded rod, and a threaded hole for threaded connection to the threaded rod is formed at the upper end of the steel section.

[0015] In some embodiments, a lifting frame is provided above the top plate, and the bottom of the lifting frame is fixedly connected to the tops of the two mounting frames via sliding rods. The top plate is slidably sleeved on the sliding rods, and a through-hole is provided on the lifting frame. The upper end of the threaded rod passes through the through-hole and is connected to a driving wheel located above the lifting frame.

[0016] In some embodiments, the lifting assembly includes a threaded sleeve fixed on the lifting frame, a screw rod is threadedly engaged on the threaded sleeve, one end of the screw rod is rotatably connected to the upper end of the top plate, and the other end of the screw rod is fixed with a handle for auxiliary driving.

[0017] In some embodiments, the support assembly includes a support plate fixed to the lower end of the top plate, and the support plate is slidably connected to a support seat via a sliding assembly.

[0018] In some embodiments, the sliding assembly includes a sliding groove opened on the support plate, the sliding groove is T-shaped, a slide plate adapted to the sliding groove is slidably connected to the sliding groove, and the support seat is fixed to the lower end of the slide plate.

[0019] In some embodiments, the linkage assembly includes a first rack fixed to one side of the mounting frame, a second rack fixed on the slide, a gear is provided between the first rack and the second rack, the gear is meshed with the first rack and the second rack, and a lifting assembly for assisting in lifting the gear is provided on the top plate.

[0020] In some embodiments, the hanging assembly includes a hanger fixed to the lower end of the top plate, the hanger is rotatably connected to a mounting shaft, and the gear is centrally fixed on the mounting shaft.

[0021] In some of the embodiments, the cap beam is a cap beam of a C-type material yard unloading platform.

[0022] Compared with the prior art, the present invention has at least one of the following advantages or beneficial effects:

[0023] 1. The present invention forms and processes the cap beam in a prefabricated manner, which can be carried out simultaneously with the on-site column foundation construction, shortening the overall construction period. After the cap beam is transported to the site, it is quickly spliced ​​by hoisting equipment, reducing the time for high-altitude operations and on-site wet operations, and significantly improving construction efficiency.

[0024] 2. In the process of prefabrication of the cap beam, the present invention embeds steel sections and steel bars inside the template, and provides auxiliary support of web bars inside the steel sections, thereby increasing the service strength of the cap beam after casting construction.

[0025] 3. During the cap beam prefabrication process, the present invention ensures the stability of the steel sections through auxiliary components, and through the support of the steel sections, the steel bars can be quickly tied and the formwork can be set up, which is convenient for assisting the rapid prefabrication and forming operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the three-dimensional structure of the steel section in an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of the movable auxiliary device connected to the steel section and tied with the steel bars in an embodiment of the present invention;

[0028] Figure 3 Schematic diagram of the structure of the prefabricated cap beam in an embodiment of the present invention

[0029] Figure 4 is a three-dimensional diagram of a movable auxiliary device according to an embodiment of the present invention;

[0030] Figure 5 This is a front view of the movable auxiliary device in an embodiment of the present invention;

[0031] Figure 6 Schematic diagram of the structure of the sliding assembly in an embodiment of the present invention.

[0032] In the figure: 101, steel section; 102, web; 103, steel bar; 201, top plate; 202, mounting frame; 203, mounting seat; 204, moving wheel; 301, threaded rod; 302, driving wheel; 303, threaded hole; 401, lifting frame; 402, sliding rod; 501, threaded sleeve; 502, screw rod; 503, handle; 601, support plate; 602, support seat; 701, slide groove; 702, slide plate; 801, first rack; 802, second rack; 803, gear; 901, hanger; 902, mounting shaft. DETAILED DESCRIPTION

[0033] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following examples. It should be understood that the following text is only used to describe one or more specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0034] like Figures 1 to 6 As shown, this embodiment discloses a cap beam prefabrication method. Specifically, the cap beam is a cap beam of a C-shaped material yard unloading platform. The cap beam prefabrication method includes the following steps:

[0035] Step S1, making a steel section 101 that matches the shape of the prefabricated cap beam (the shape and size of the steel section 101 can be designed according to the design drawing of the prefabricated cap beam), and multiple groups of web members 102 for supporting the steel section 101 are arranged inside the steel section 101 along the length direction.

[0036] Step S2, providing two groups of movable auxiliary devices, which include a top plate 201, and a mounting assembly for detachably connecting to the steel section 101 is provided on the top plate 201; two groups of support structures are symmetrically arranged below the top plate 201, and each group of support structures includes a mounting frame 202 and a support assembly, and the lower end of the mounting frame 202 is installed with a moving wheel 204 for auxiliary movement through a mounting seat 203, and a lifting assembly for lifting the mounting frame 202 is provided on the top plate 201, and the bottom end of the support assembly is retractable, and a linkage assembly for auxiliary linkage is provided between the support assembly and the mounting frame 202 in each group of support structures. When the lifting assembly drives the mounting frame 202 to move in one direction, the bottom end of the support assembly moves in the opposite direction driven by the linkage assembly.

[0037] Specifically, the mounting assembly includes a threaded rod 301 threadedly connected to the top plate 201. A driving wheel 302 is fixed to the upper end of the threaded rod 301. The upper end of the steel section 101 is provided with a threaded hole 303 for threaded connection with the threaded rod 301. Therefore, when the steel section 101 needs to be fixed, the driving wheel 302 drives the threaded rod 301 to rotate. During the rotation of the threaded rod 301, the front end of the threaded rod 301 is threadedly connected to the threaded hole 303 of the steel section 101, thereby completing the installation and connection between the auxiliary device and the steel section 101.

[0038] A lifting frame 401 is disposed above the top plate 201. The bottom of the lifting frame 401 is fixedly connected to the tops of the two mounting frames 202 via sliding rods 402 (i.e., the upper ends of the sliding rods 402 are fixed to the lifting frame 401, and the lower ends of the sliding rods 402 are fixed to the mounting frames 202). The top plate 201 slides over the sliding rods 402. The lifting frame 401 has through-holes through which the upper ends of the threaded rods 301 pass and connect to the drive wheels 302 located above the lifting frame 401. The lifting frame 401 and multiple sets of sliding rods 402 facilitate the sliding connection of the mounting frames 202.

[0039] The above-mentioned lifting assembly includes a threaded sleeve 501 fixed on the lifting frame 401, and a screw rod 502 is threadedly engaged on the threaded sleeve 501. One end of the screw rod 502 is rotatably connected to the upper end of the top plate 201, and the other end of the screw rod 502 is fixed with a handle 503 for auxiliary driving; the above-mentioned support assembly includes a support plate 601 fixed to the lower end of the top plate 201, and a support seat 602 is slidably connected to the support plate 601 through a sliding assembly.

[0040] It should be noted here that: by driving the support base 602 below the support plate 601, the support base 602 is abutted against the ground, and the abutment between the support base 602 and the ground ensures the stability of the support.

[0041] The sliding assembly includes a slide groove 701 provided on the support plate 601 . The slide groove 701 is T-shaped. A slide plate 702 adapted to the slide groove is slidably connected to the slide groove 701 . The support base 602 is fixed to the lower end of the slide plate 702 .

[0042] It should be noted here that the sliding groove 701 and the sliding plate 702 facilitate the telescopic sliding of the support base 602 .

[0043] The above-mentioned linkage assembly includes a first rack 801 fixed to one side of the mounting frame 202, a second rack 802 is fixed on the slide 702, a gear 803 is arranged between the first rack 801 and the second rack 802, and the gear 803 is meshed with the first rack 801 and the second rack 802. A lifting assembly for assisting in lifting the gear 803 is provided on the top plate 201.

[0044] It should be noted here that: during the upward movement of the mounting frame 202, the first rack 801 is driven to move upward synchronously. During the movement of the first rack 801, the gear 803 is rotated by the mutual engagement transmission between the first rack 801 and the gear 803. During the rotation of the gear 803, the slide 702 is forced to move downward inside the slide groove 701 by the mutual engagement transmission between the gear 803 and the second rack 802. The moving wheel 204 is lifted off the ground by the retracting movement of the mounting frame 202 and the descending movement of the slide 702, and the support seat 602 is pressed against the ground, thereby being able to fix the steel section 101 well.

[0045] The above-mentioned lifting assembly includes a hanger 901 fixed to the lower end of the top plate 201, and a mounting shaft 902 is rotatably connected to the hanger 901. The gear 803 is centrally fixed to the mounting shaft 902. The hanger 901 and the mounting shaft 902 facilitate auxiliary lifting of the gear 803.

[0046] Step S3, move the two sets of movable auxiliary devices to the two ends of the steel section 101 respectively, and hang and fix the steel section 101 under the top plate 201 through the installation assembly; specifically, use the threaded connection between the above-mentioned threaded rod 301 and the top plate 201 of the steel section 101 to hang and fix the steel section 101 on the top plate 201. In order to further improve the connection strength between the two, a nut can be threadedly connected to the lower part of the threaded rod 301, and the nut is located inside the steel section 101.

[0047] It should be noted here that: during the use of the above-mentioned movable auxiliary device, the movable auxiliary device in the initial state is assisted by the movable wheels 204 on each group of mounting seats 203. Through the rotational support of each group of movable wheels 204, the entire movable auxiliary device can be moved quickly. By moving the movable auxiliary device, the top plate 201 on the auxiliary device is located above the steel section 101 and the two groups of mounting frames 202 are symmetrically arranged on both sides of the steel section 101.

[0048] In step S4, two sets of movable auxiliary devices are used to transport the steel section 101 to the casting position, and the mounting frame 202 is adjusted to rise through the lifting assembly, and the bottom end of the support assembly is lowered so that the movable wheel 204 rises off the ground, and the support seat 602 is lowered to rest against the ground, fixing the position of the movable auxiliary device so that it will not slide.

[0049] Specifically, the handle 503 is rotated, and the rotation of the handle 503 drives the screw rod 502 to rotate. During the rotation of the screw rod 502, the mutual engagement transmission between the screw rod 502 and the threaded sleeve 501 causes the lifting frame 401 to be forced to move upward, thereby driving the mounting frame 202 to rise, the moving wheel 204 to leave the ground, and the support seat 602 of the support assembly to descend and rest against the ground, thereby achieving the purpose of fixing the movable auxiliary device.

[0050] In step S5, multiple sets of steel bars 103 are tied to the outside of the steel section 101, and formwork is provided below and around the steel section 101. Since two sets of movable auxiliary devices suspend and fix the steel section 101 below the top plate 201, tying the steel bars 103 and supporting the formwork are relatively convenient and quick.

[0051] During the process of prefabrication of the cap beam, the stability of the steel section 101 is ensured by means of movable auxiliary components, and by hanging and fixing the steel section 101, the steel bars 103 can be quickly tied to the outside of the steel section 101, and the formwork used for prefabrication and casting construction can be quickly positioned and installed on the bottom and around the steel section 101, so as to assist in the rapid prefabrication and forming operation.

[0052] Step S6, performing a concrete pouring process, and stopping the pouring when the concrete is poured to a height higher than the set height at the bottom of the steel section 101, and removing the two sets of the movable auxiliary devices after the concrete solidifies, and then continuing the pouring to form the prefabricated cap beam.

[0053] By means of the movable auxiliary device, the steel section 101 can be located in the middle of the template and have a certain distance from the bottom template and the side template, thereby improving the service strength of the prefabricated cap beam.

[0054] The auxiliary device is supported by the moving wheels 204 on each group of mounting seats 203 in the initial state. The rotating support of each group of moving wheels 204 can make the entire auxiliary device move quickly. By moving the auxiliary device, the top plate 201 on the auxiliary device is placed above the steel section 101 and the two groups of mounting frames 202 are symmetrically arranged on both sides of the steel section 101. After the movement is completed, the threaded rod 301 is driven to rotate by the driving wheel 302. During the rotation of the threaded rod 301, the front end of the threaded rod 301 is threadedly connected with the threaded hole 303 on the steel section 101, and the installation connection of the auxiliary device and the steel section 101 after the movement is completed. After the auxiliary device is installed and connected to the steel section 101, the handle 503 is rotated, and the rotation of the handle 503 drives the screw rod 502 to rotate. During the rotation of the screw rod 502, the mutual meshing transmission between the screw rod 502 and the threaded sleeve 501 causes the lifting frame 401 to be forced to move upward. During the movement of the lifting frame 401, the connection action of the multiple sets of sliding rods 402 pulls the mounting frame 202 to move upward under force, and during the upward movement of the mounting frame 202, the first rack 801 is driven to move upward synchronously. During the movement of the first rack 801, the mutual meshing transmission between the first rack 801 and the gear 803 causes the gear 803 to rotate. During the rotation of the gear 803, the mutual meshing transmission between the gear 803 and the second gear causes the slide plate 702 to move downward under force inside the slide groove 701. Through the retracting movement of the mounting frame 202 and the descending movement of the slide plate 702, the moving wheel 204 is retracted and the support seat 602 under the support plate 601 is pushed against the ground. At this time, the steel section 101 is supported by the support plate 601 to ensure the stability of the steel section 101. By supporting the steel section 101, the template used for precast casting construction can be quickly positioned and installed around the steel section 101, which is convenient for assisting rapid precast forming operations.

[0055] The prefabricated cap beam of the present invention can be used in a construction method of a C-type material yard unloading vehicle platform, and the construction method includes:

[0056] S1: Column construction, using the pouring method to cast multiple groups of columns at the designated construction location.

[0057] S2: Form a prefabricated cap beam using the above method.

[0058] S3: Prefabricate to form composite beams.

[0059] S4: Assemble and install the prefabricated cap beam and the columns, use the lifting equipment to position and connect the prefabricated cap beam and the columns, and solidify them by formwork casting.

[0060] S5: Laying and installing the composite beams. Use lifting equipment to lay and install the composite beams between two adjacent prefabricated cap beams after assembly.

[0061] S6: Installation of the composite slab: Laying and installing the composite slab on the composite beam. After the laying is completed, a platform for the unloading vehicle is formed by pouring concrete on the composite slab.

[0062] In this solution, the cap beam and composite beam are formed and processed in a prefabricated manner, which can be carried out simultaneously with the on-site column foundation construction, shortening the overall construction period. After the cap beam and composite beam are transported to the site, they are quickly spliced ​​by hoisting equipment, reducing the time for high-altitude operations and on-site wet operations, and significantly improving construction efficiency. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be regarded as the scope of protection of the present invention. Structures, devices and operating methods that are not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified and limited.

Claims

1. A cap beam prefabrication method, characterized in that: The steps include: Producing a steel section that matches the shape of the prefabricated cap beam, with multiple sets of web members for support arranged inside the steel section along the length direction; Two sets of movable auxiliary devices are provided, the movable auxiliary devices include a top plate, and a mounting assembly for detachably connecting to the steel section is provided on the top plate; two sets of support structures are symmetrically provided below the top plate, and each set of the support structures includes a mounting frame and a support assembly, the lower end of the mounting frame is equipped with a moving wheel, and a lifting assembly for lifting the mounting frame is provided on the top plate, and the bottom end of the support assembly is retractable. A linkage assembly for auxiliary linkage is provided between the support assembly and the mounting frame in each set of the support structures, and when the lifting assembly drives the mounting frame to move in one direction, the bottom end of the support assembly moves in the opposite direction under the drive of the linkage assembly; Move the two sets of movable auxiliary devices to the two ends of the steel section respectively, and hang and fix the steel section below the top plate through the mounting assembly; The steel sections are transported to the casting location using two sets of movable auxiliary devices, and the mounting frame is raised by adjusting the lifting assembly, and the bottom end of the support assembly is lowered, so that the position of the movable auxiliary devices is fixed; Tie multiple sets of steel bars on the outside of the steel section, and support formwork below and around the steel section; The concrete pouring process is carried out, and the pouring is stopped when the concrete is poured to a height higher than the set height of the bottom of the steel section. After the concrete is solidified, the two sets of the movable auxiliary devices are removed, and then the pouring is continued to form the prefabricated cap beam.

2. The cap beam prefabrication method according to claim 1, characterized in that: The lower end of the mounting frame is connected to the moving wheel through a mounting seat.

3. The cap beam prefabrication method according to claim 1, characterized in that: The mounting assembly includes a threaded rod threadedly connected to the top plate, a driving wheel is fixed to the upper end of the threaded rod, and a threaded hole for threaded connection with the threaded rod is opened at the upper end of the steel section.

4. The cap beam prefabrication method according to claim 3, characterized in that: A lifting frame is provided above the top plate, and the bottom of the lifting frame is fixedly connected to the tops of the two mounting frames by sliding rods. The top plate is slidably sleeved on the sliding rods. A through-hole is provided on the lifting frame, and the upper end of the threaded rod passes through the through-hole and is connected to the driving wheel located above the lifting frame.

5. The cap beam prefabrication method according to claim 4, characterized in that: The lifting assembly includes a threaded sleeve fixed on the lifting frame, a screw rod is threadedly engaged on the threaded sleeve, one end of the screw rod is rotatably connected to the upper end of the top plate, and the other end of the screw rod is fixed with a handle for auxiliary driving.

6. The cap beam prefabrication method according to claim 4, characterized in that: The support assembly includes a support plate fixed to the lower end of the top plate, and the support plate is slidably connected to a support seat via a sliding assembly.

7. The cap beam prefabrication method according to claim 6, characterized in that: The sliding assembly includes a sliding groove opened on the support plate, the sliding groove is T-shaped, a slide plate adapted to the sliding groove is slidably connected to the sliding groove, and the support seat is fixed to the lower end of the slide plate.

8. The cap beam prefabrication method according to claim 7, characterized in that: The linkage assembly includes a first rack fixed to one side of the mounting frame, a second rack fixed on the slide, a gear arranged between the first rack and the second rack, the gear being meshed with the first rack and the second rack, and a lifting assembly for assisting in lifting the gear is provided on the top plate.

9. The cap beam prefabrication method according to claim 8, characterized in that: The hoisting assembly includes a hanger fixed to the lower end of the top plate, the hanger is rotatably connected to a mounting shaft, and the gear is centrally fixed on the mounting shaft.

10. The cap beam prefabrication method according to claim 1, characterized in that: The cap beam is the cap beam of a C-shaped material yard unloading platform.

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