Square silo wall slip form construction system

Abstract

The invention discloses a squat silo wall slip form construction system, which belongs to the technical field of squat silo wall construction, and is characterized in that a plurality of support guide rods are uniformly and longitudinally arranged in the circumferential direction of the center of a constructed silo wall, and are arranged in a slip form for pouring and fixing; the formwork supporting device comprises a lifting frame and an enclosure. A plurality of groups of lifting frames are uniformly arranged along the center of the built silo wall in the circumferential direction and are used for supporting and connecting the sliding template; two layers of enclosures are longitudinally arranged along the outer side of the silo wall, each layer of enclosure comprises two groups of inner enclosures and outer enclosures, and the inner enclosures and the outer enclosures are arranged on the lifting frame and used for supporting the sliding formwork and guaranteeing roundness; the operation platform is connected to the lifting frame; the hydraulic lifting device comprises a plurality of groups of hydraulic jacks corresponding to the supporting guide rods; the hydraulic jack sleeves the outer side of the supporting guide rod, and the bottom fixed end is fixedly arranged on the lifting frame; the top moving end is in pin connection with the supporting guide rod; the monitoring device is arranged on the lifting frame and used for monitoring levelness, perpendicularity and roundness. The method has the advantages of safety and stability.

Description

Technical Field

[0001] The present invention belongs to the technical field of the construction technology of the silo wall of a shallow silo, and more specifically relates to a slip form construction system for the silo wall of a shallow silo. Background Art

[0002] As a type of silo with a large single storage capacity, a small floor area per unit of stored grain, reasonable structural stress, and high mechanization level, shallow silos are widely used in the grain industry. In recent years, the integral slip form process is usually adopted for the construction of the silo wall of a shallow silo, which is an efficient construction process and is widely used in large-scale grain storage warehouse projects. The slip form construction has the construction characteristic of forming at one time. Correspondingly, the overall levelness of the slip form operation system, the perpendicularity of the silo wall, and anti-torsion are the control key points in the slip form construction. Due to the high-frequency repeated use of the formwork and the simultaneous operation of multiple lifting frames 4, there will be a height difference in the formwork fixed by multiple lifting frames 4. During the slip form process, the operation platform 3 should be kept horizontal, and the relative height difference of the jacks shall not be greater than 50 mm, and the lifting difference between two adjacent jacks shall not be greater than 25 mm. Therefore, it is necessary to monitor the levelness, the perpendicularity of the silo wall, and the torsion degree in real time during the construction process. How to provide a slip form construction system for the silo wall of a shallow silo that can solve the above problems is an urgent problem for those skilled in the art. Summary of the Invention

[0003] In view of this, the present invention provides a slip form construction system for the silo wall of a shallow silo, and adopts the following technical solutions:

[0004] A slip form construction system for the silo wall of a shallow silo includes a formwork support device, a hydraulic lifting device, a support guide rod, a sliding formwork, an operation platform, and a monitoring device; a plurality of the support guide rods are longitudinally arranged circumferentially and uniformly along the center of the constructed silo wall, and are all cast and fixed inside the sliding formwork; the formwork support device includes a lifting frame and a hoop; a plurality of groups of the lifting frames are arranged circumferentially and uniformly along the center of the constructed silo wall, corresponding to the support guide rods, and are used for supporting and connecting the sliding formwork; two layers of hoops are longitudinally arranged along the outer side of the silo wall, and each layer of hoop includes two groups of inner hoops and outer hoops, which are arranged on the lifting frame and are used for supporting the sliding formwork and ensuring roundness; the operation platform is connected to the lifting frame; the hydraulic lifting device includes a plurality of groups of hydraulic jacks corresponding to the support guide rods; the hydraulic jacks are sleeved outside the support guide rods, and the fixed ends at the bottom are fixedly arranged on the lifting frame; the movable ends at the top are pin-connected to the support guide rods; the monitoring device is arranged on the lifting frame and is used for monitoring the levelness, perpendicularity, and roundness.

[0005] Further, the lifting frame includes two columns, a cross beam, and two cantilever beams; the two columns are respectively an inner column and an outer column; the upper ends of the two columns are both welded to the cross beam, and the middle parts of the two cantilever beams are respectively bolt-connected to the lower parts of the two columns.

[0006] Furthermore, the sliding formwork includes an inner formwork and an outer formwork; a steel bracket is bolted below the connection of the middle part of the upright column to the operation platform; both groups of steel brackets extend between the two upright columns and are used to support and connect the inner formwork and the outer formwork.

[0007] Furthermore, the cantilever beam includes an inner cantilever beam and an outer cantilever beam. One ends of the inner cantilever beam and the outer cantilever beam respectively support the sliding formwork, and the other ends extend inward and outward of the bin wall; a hanging basket is arranged below the cantilever beam.

[0008] Furthermore, an operation platform is connected to the middle part of the upright column, and a diagonal brace is arranged between the bottom of the operation platform and the upright column to support the operation platform; one end of the diagonal brace is welded to the upright column, and the other end is bolted to the operation platform.

[0009] Furthermore, the upper layer of the two-layer circumferential ring is arranged at the middle part of the upright column and welded to the steel bracket, and the lower layer of the circumferential ring is arranged at the lower part of the upright column and welded to the cantilever beam; in each layer of the circumferential ring, a group of inner circumferential rings and outer circumferential rings are respectively bolted to the outer sides of the inner formwork and the outer formwork, and the other group of inner circumferential rings and outer circumferential rings are respectively bolted to the outer sides of the two upright columns.

[0010] Furthermore, the hydraulic lifting device further includes an oil circuit and a hydraulic control console. The hydraulic control console is arranged on the operation platform and is connected to the hydraulic chamber of the hydraulic jack through the oil circuit; the oil circuit includes a main oil circuit, a branch oil circuit and a sub-branch oil circuit. The main oil circuit includes an oil inlet circuit and an oil return circuit. One ends of both are connected to the oil tank of the hydraulic control console, and the other ends are connected to multiple branch oil circuits through an oil distributor; the other end of each branch oil circuit is connected to multiple sub-branch oil circuits through an oil distributor and is connected to the hydraulic jack through the sub-branch oil circuit.

[0011] Furthermore, the monitoring device includes a controller, a level monitoring unit, a verticality monitoring unit and a roundness monitoring unit; the level monitoring unit, the verticality monitoring unit and the roundness monitoring unit are all connected to the controller;

[0012] The level monitoring unit includes a level corresponding to the lifting frame, and the level is arranged on the outer side of the outer upright column on the operation platform;

[0013] The verticality monitoring unit includes a marking ring, a displacement sensor and a plumb bob; the marking ring is arranged on one side of the bin wall; the displacement sensor is arranged on the marking ring; the upper end of the plumb bob is connected to the lifting frame, and the other end is suspended above the displacement sensor; the displacement sensor is electrically connected to the controller and is used to sense the position of the plumb bob;

[0014] The roundness monitoring unit includes a central disc, a tie rod and a tension sensor; the central disc is arranged at the central position inside the shallow silo; multiple groups of tie rods are correspondingly arranged along the center of the central disc and the lifting frame, one end of each tie rod is welded to the central disc, and the other end is fixedly connected to the lifting frame through a turnbuckle; the tension sensor is arranged between the turnbuckle and the lifting frame and is electrically connected to the controller for monitoring the tension received by the tie rod.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The present invention provides a slip form construction system for the wall of a shallow silo. By setting up monitoring devices to monitor the levelness, verticality and roundness during the construction process, monitoring data can be obtained in a timely manner for timely adjustment, so as to avoid serious quality problems or safety accidents during the entire slip form process.

[0017] 2. The present invention sets up two layers of hoops, and two groups of inner hoops and outer hoops are arranged in each layer of hoops to support the slip form and the lifting frame, which can ensure the stability and roundness of the slip form and the lifting frame at the same time, and avoid the deformation of the silo wall due to large errors during the slip form process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of the lifting frame of the present invention.

[0020] Figure 2 It is a schematic layout diagram of the oil circuit of the present invention.

[0021] Figure 3 It is a schematic structural diagram of the roundness monitoring unit of the present invention.

[0022] Among them, in the figure:

[0023] 1 - support guide rod; 2 - slip form; 3 - operation platform; 4 - lifting frame; 5 - hydraulic jack; 6 - hoop; 7 - column; 8 - cross beam; 9 - cantilever beam; 10 - steel support; 11 - hanging basket; 12 - diagonal brace; 13 - hydraulic control console; 14 - marking ring; 15 - displacement sensor; 16 - plumb bob; 17 - central disc; 18 - tie rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to the attached Figures 1 - 3 , the present invention provides a slip form construction system for the wall of a shallow silo, including a formwork support device, a hydraulic lifting device, support guide rods 1, a sliding formwork 2 and an operation platform 3.

[0026] A plurality of the support guide rods 1 are longitudinally arranged uniformly along the circumference of the center of the constructed silo wall, and are all cast and fixed in the sliding formwork 2, and are used as vertical steel bars of the silo wall steel structure and the climbing track of the hydraulic lifting device; the support guide rods 1 are made of Ф48.3×3.5mm steel pipes, and a plurality of them are longitudinally arranged, and the connection method between two adjacent support guide rods 1 is first socket and then welding.

[0027] The formwork support device includes a lifting frame 4 and a hoop 6; the lifting frame 4 includes two columns 7, a cross beam 8 and two cantilever beams 9; the two columns 7 are an inner column and an outer column respectively; the upper ends of the two columns 7 are both welded to the cross beam 8, and the middle parts of the two cantilever beams 9 are respectively bolt-connected to the lower parts of the two columns 7.

[0028] A plurality of groups of the lifting frames 4 are arranged uniformly along the circumference of the center of the constructed silo wall, and are arranged corresponding to the support guide rods 1, and are used as load-bearing members to bear all the loads of the construction equipment and the lateral tension of the concrete on the sliding formwork. The hydraulic lifting device includes a plurality of groups of hydraulic jacks 5 arranged corresponding to the support guide rods 1; the hydraulic jacks 5 are arranged on the lifting frame 4 and are used to support the climbing of the sliding formwork 2. The operation platform 3 is arranged on the lifting frame 4 and includes an inner platform and an outer platform, and is used for construction workers to carry out construction operations such as tying steel bars, pouring concrete, and finishing and smoothing the concrete, and to become a placement platform for construction equipment.

[0029] The sliding formwork 2 includes an inner formwork and an outer formwork, both of which are spliced by precast arc plates; a steel bracket 10 is bolted to the middle part of the column 7 below the connection of the operation platform 3; both groups of steel brackets 10 extend between the two columns 7 and are used to support and connect the inner formwork and the outer formwork; the inner formwork and the outer formwork form the sliding formwork 2 for pouring the silo wall, and angle steel is used as purlins on the back; when two groups of sliding formworks 2 are spliced, bolt connection is adopted to form a ring for pouring concrete.

[0030] The cantilever beam 9 includes an inner cantilever beam and an outer cantilever beam, one end of the inner cantilever beam and the outer cantilever beam respectively supports the sliding formwork, the middle bolt is connected to the column 7, and the other end is extended to the inside and outside of the warehouse wall; a hanging basket 11 is arranged at the lower part of the cantilever beam 9; the hanging basket 11 is used to check the demoulding strength of concrete after the warehouse wall is demoulded, to trim the warehouse wall, to deal with quality defects, to clean out reserved openings, embedded parts, and to smooth the original slurry, etc.; a protective railing is arranged on the outside of the hanging basket 11, and a safety net is arranged on the outside and the bottom to ensure construction safety.

[0031] An operating platform 3 is connected to the middle of the column 7, one end of the operating platform 3 is connected to the column 7 through a fastener, and the other end extends inside and outside the warehouse wall respectively; an inclined brace 12 is provided between the bottom of the operating platform 3 and the column 7 for supporting the operating platform 3; one end of the inclined brace 12 is welded to the column 7, and the other end is bolted to the operating platform 3.

[0032] In this embodiment, 58 lifting frames 4 are provided, and 58 groups of supporting guide rods 1 and hydraulic jacks 5 are respectively provided.

[0033] The enclosure 6 is longitudinally arranged in two layers along the outer side of the warehouse wall, the upper enclosure is arranged in the middle of the column 7, and the lower enclosure is arranged at the lower part of the column 7; the enclosure is formed by splicing multiple sections of arc channel steel; the upper enclosure is welded to the steel support 10, and the lower enclosure is welded to the cantilever beam 9; each layer of enclosure 6 includes two groups of inner enclosures and outer enclosures; one group of inner enclosures and outer enclosures are bolted to the outer sides of the inner and outer templates, respectively, and the other group of inner enclosures and outer enclosures are bolted to the outer sides of the two columns 7. The enclosure 6 transmits the deadweight of the sliding template 2, the friction resistance and lateral tension borne by the sliding template 2, and the deadweight and construction load directly transmitted from the operating platform 3 to the columns 7, ensuring the stability and roundness of the entire template support device.

[0034] The hydraulic lifting device includes a hydraulic jack 5, an oil circuit and a hydraulic control console 13. The hydraulic control console 13 is arranged on the operating platform 3 and is connected to the liquid cavity of the hydraulic jack 5 through the oil circuit. After the hydraulic control console 13 is started, it pumps oil into multiple groups of hydraulic jacks 5 to lift them. When the hydraulic oil pressure disappears when the hydraulic jack 5 stops, the spring in the hydraulic jack 5 rebounds, and the hydraulic oil in the hydraulic jack 5 flows back to the hydraulic control console 13. The oil circuit includes a main oil circuit, a branch oil circuit and a branch oil circuit. The main oil circuit includes an oil inlet circuit and an oil return circuit. One end of the main oil circuit is connected to the oil tank of the hydraulic control console 13, and the other end is connected to multiple branch oil circuits through an oil distributor. The other end of each branch oil circuit is connected to multiple branch oil circuits through an oil distributor, and the hydraulic oil is transported to the hydraulic jack 5 through the branch oil circuit.

[0035] The 5 sets of hydraulic jacks are sleeved outside the support guide rod 1, the fixed end at the bottom is fixed on the cross beam 8 of the lifting frame 4, and the movable end at the top is pin-connected to the support guide rod 1. When the sliding formwork 2 is lifted, the top is pin-connected to the support guide rod 1, and the bottom of the hydraulic jack 5 drives the lifting frame 4 to move upward, thereby driving the sliding formwork 2 to be lifted; when the sliding formwork 2 is stationary, the pin connection at the top is cancelled, the movable end at the top is freely lifted, moved to the next connection point, and the top of the hydraulic jack 5 and the support guide rod 1 are pin-connected during the next lift.

[0036] The slip form construction system of the present invention further includes a monitoring device for monitoring the levelness, verticality and roundness; the monitoring device includes a controller, a levelness monitoring unit, a verticality monitoring unit and a roundness monitoring unit; the levelness monitoring unit, the verticality monitoring unit and the roundness monitoring unit are all connected to the controller.

[0037] The levelness monitoring unit includes a level corresponding to the lifting frame 4, and the level is arranged on the operation platform 3 outside the outer column 7. Construction workers can use the level to monitor the levelness of each lifting frame 4 after each slip form. When the slip form is lifted 300 mm each time, the maximum relative height difference of each hydraulic jack 5 is not greater than 16 mm, and the elevation difference between two adjacent hydraulic jacks 5 is not greater than 10 mm.

[0038] The verticality monitoring unit includes a marking ring 14, a displacement sensor 15 and a plumb bob 16; the marking ring 14 is arranged on one side of the silo wall; the displacement sensor 15 is arranged on the marking ring 14; the displacement sensor 15 and the plumb bob 16 are arranged corresponding to the lifting frame 4; the upper end of the plumb bob 16 is connected to the lifting frame 4, and the other end is suspended above the displacement sensor 15; the displacement sensor 15 is used to sense the position of the plumb bob 16, and during the lifting process, the displacement sensor 15 and the plumb bob 16 are used in cooperation to monitor the verticality and torsion of the silo wall in real time.

[0039] The roundness monitoring unit includes a central disc 17, a tie rod 18 and a tension sensor; the central disc 17 is arranged at the central position inside the shallow silo; multiple groups of tie rods 18 are arranged along the center of the central disc 17 corresponding to the lifting frame 4, one end is welded to the central disc 17, and the other end is connected and fastened to the lifting frame 4 through a swivel bolt; the tightness of the tie rod 18 can be adjusted by adjusting the swivel bolt, which can prevent the horizontal displacement of the root of the lifting frame 4 after the operation platform 3 is stressed and affect the roundness of the silo wall. The tension sensor is arranged between the swivel bolt and the lifting frame 4 and is used to monitor the tension received by the tie rod 18. The tension sensor is electrically connected to the controller to transmit the signal to the controller, and the position of the lifting frame 4 is adjusted by adjusting the swivel bolt to adjust the tie rod 18, so as to ensure the roundness of the silo wall.

[0040] In the present specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts among the embodiments can be referred to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the description in the method section.

[0041] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A slip form construction system for the wall of a shallow silo, characterized in that, It includes a formwork support device, a hydraulic lifting device, a support guide rod (1), a sliding formwork (2), an operation platform (3) and a monitoring device; a plurality of the support guide rods (1) are longitudinally arranged circumferentially and uniformly along the center of the constructed silo wall, and are all cast and fixed inside the sliding formwork (2); the formwork support device includes a lifting frame (4) and a hoop (6); a plurality of groups of the lifting frames (4) are arranged circumferentially and uniformly along the center of the constructed silo wall, corresponding to the support guide rods (1), and are used to support and connect the sliding formwork (2); two layers of the hoops (6) are longitudinally arranged along the outer side of the silo wall, and each layer of the hoop (6) includes two groups of inner hoops and outer hoops, which are arranged on the lifting frame (4) and are used to support the sliding formwork and ensure the roundness; the operation platform (3) is connected to the lifting frame (4); the hydraulic lifting device includes a plurality of groups of hydraulic jacks (5) corresponding to the support guide rods (1); the hydraulic jacks (5) are sleeved outside the support guide rods (1), and the fixed ends at the bottom are fixed on the lifting frame (4); the movable ends at the top are pin-connected to the support guide rods (1); the monitoring device is arranged on the lifting frame and is used to monitor the levelness, verticality and roundness.

2. The slip form construction system for the wall of a shallow silo according to claim 1, wherein The lifting frame (4) includes two columns (7), a cross beam (8) and two cantilever beams (9); the two columns (7) are an inner column and an outer column respectively; the upper ends of the two columns (7) are welded to the cross beam (8), and the middle parts of the two cantilever beams (9) are bolted to the lower parts of the two columns (7) respectively.

3. The slip form construction system for the wall of a shallow silo according to claim 2, characterized in that, The sliding formwork (2) includes an inner formwork and an outer formwork; in the middle of the column (7) and below the connection part of the operation platform (3), a steel bracket (10) is bolted; both groups of the steel brackets (10) extend between the two columns (7) and are used to support and connect the inner formwork and the outer formwork.

4. A slip form construction system for the wall of a shallow silo according to claim 2, characterized in that, The cantilever beam (9) includes an inner cantilever beam and an outer cantilever beam. One ends of the inner cantilever beam and the outer cantilever beam respectively support the sliding formwork, and the other ends extend inward and outward of the silo wall; a hanging basket (11) is arranged below the cantilever beam (9).

5. The slip form construction system for the wall of a shallow silo according to claim 2, characterized in that, The middle part of the column (7) is connected to the operation platform (3), and a diagonal brace (12) is arranged between the bottom of the operation platform (3) and the column (7) and is used to support the operation platform (3); one end of the diagonal brace (12) is welded to the column (7), and the other end is bolted to the operation platform (3).

6. The slip form construction system for the wall of a shallow silo according to claim 3, characterized in that, In the two layers of the hoops (6), the upper layer of the hoop is arranged in the middle of the column (7) and welded to the steel bracket (10), and the lower layer of the hoop is arranged at the lower part of the column (7) and welded to the cantilever beam (9); in each layer of the hoop (6), one group of the inner hoop and the outer hoop are respectively bolted to the outer sides of the inner formwork and the outer formwork, and the other group of the inner hoop and the outer hoop are respectively bolted to the outer sides of the two columns (7).

7. A slip form construction system for the wall of a shallow silo according to claim 1, wherein, The hydraulic lifting device further includes an oil circuit and a hydraulic control console (13). The hydraulic control console (13) is arranged on the operation platform (3) and is connected to the liquid cavity of the hydraulic jack (5) through the oil circuit. The oil circuit includes a main oil circuit, a branch oil circuit and a sub-branch oil circuit. The main oil circuit includes an oil inlet circuit and an oil return circuit. One end of each is connected to the oil tank of the hydraulic control console (13), and the other end is connected to multiple branch oil circuits through an oil distributor. The other end of each branch oil circuit is connected to multiple sub-branch oil circuits through an oil distributor, and the hydraulic jack (5) is connected through the sub-branch oil circuit.

8. The slip form construction system for the wall of a shallow silo according to claim 2, characterized in that The monitoring device includes a controller, a level monitoring unit, a verticality monitoring unit and a roundness monitoring unit. The level monitoring unit, the verticality monitoring unit and the roundness monitoring unit are all connected to the controller. The level monitoring unit includes a level corresponding to the lifting frame (4). The level is arranged on the outer side of the outer column (7) and on the operation platform (3). The verticality monitoring unit includes a marking ring (14), a displacement sensor (15) and a plumb bob (16). The marking ring (14) is arranged on one side of the silo wall. The displacement sensor (15) is arranged on the marking ring (14). The upper end of the plumb bob (16) is connected to the lifting frame (4), and the other end is suspended above the displacement sensor (15). The displacement sensor (15) is electrically connected to the controller and is used to sense the position of the plumb bob (16). The roundness monitoring unit includes a central disc (17), a pull rod (18) and a tension sensor. The central disc (17) is arranged at the central position inside the shallow silo. Multiple groups of pull rods (18) are arranged corresponding to the lifting frame (4) along the center of the central disc (17). One end is welded to the central disc (17), and the other end is connected and fastened to the lifting frame (4) through a swivel bolt. The tension sensor is arranged between the swivel bolt and the lifting frame (4) and is electrically connected to the controller for monitoring the tension received by the pull rod (18).

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