Landing-frame-free self-balancing structure for warehouse roof construction

Abstract

The utility model belongs to the field of building construction, and particularly relates to a landing-frame-free self-balancing structure for silo top plate construction, which comprises a poured silo structure, slip form equipment, a pre-embedded steel corbel positioned on the inner wall of the poured silo structure, and an adjustable silo top supporting structure hung to the pre-embedded steel corbel through a sling of the slip form equipment, the adjustable cylinder top supporting structure comprises a center cylinder, an upper end supporting beam, a lower end supporting beam, an upper I-shaped ring beam, a lower I-shaped ring beam and a roof truss, wherein the upper end supporting beam and the lower end supporting beam are arranged along the periphery of the center cylinder in a radiation mode; the lower ends of the roof trusses are connected with the embedded steel corbels, the upper ends of the roof trusses are connected with the upper I-shaped ring beam on the periphery of the upper end supporting beam, the bottom ends of the roof trusses are connected with the lower I-shaped ring beam through inhaul cables in a pulling mode, and longitudinal reinforcing trusses are erected between the adjacent roof trusses. The utility model has the beneficial effects that not only is the erection of an ultrahigh template avoided, but also the horizontal upsetting moment can be counteracted, so that the safe construction of the silo top is facilitated.

Description

Technical Field

[0001] The utility model belongs to the field of building construction, and in particular relates to a ground-free frame self-balancing structure used for warehouse roof construction. Background Art

[0002] In the entire production and operation system of coal and grain storage plants, silos are indispensable as facilities for transfer and storage. Silos are mostly tall cylinders with sloped or funnel-shaped tops, which change the traditional loose stacking method to high-level bundle stacking in a closed space, which not only saves floor space, but also ensures the closed storage environment and reduces the impact on the surrounding environment.

[0003] At present, the silo structure has a slope or funnel-shaped top, and it is difficult to set up the formwork during the pouring process. The traditional ground support frame is set up with a high height of vertical poles, and the large slope of the silo top will produce a large overturning moment on the vertical poles of the ground support frame, which not only poses a greater challenge to the structural safety, but also requires the arrangement of additional vertical poles to maintain the stability of the frame. Therefore, the traditional solution is neither economical nor safe. Utility Model Content

[0004] In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides a ground-free self-balancing structure for silo roof construction, which not only avoids the erection of super-high and large formwork, but also offsets the horizontal overturning moment, thereby facilitating safe construction of the silo roof.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A self-balancing structure for a floor-free silo roof construction, comprising: a cast silo tube structure, a slipform device arranged on the top of the tube wall of the cast silo tube structure, a pre-buried steel bracket located on the upper part of the inner wall of the cast silo tube structure, and an adjustable tube top support structure, wherein the adjustable tube top support structure is suspended and connected to the pre-buried steel bracket through a sling connected to the slipform device;

[0007] The adjustable cylinder top support structure includes a central cylinder, upper support beams radially arranged around the top of the central cylinder, lower support beams radially arranged around the bottom of the central cylinder, upper I-shaped ring beams arranged around the outer periphery of the upper support beams, lower I-shaped ring beams arranged around the outer periphery of the lower support beams, and a roof truss;

[0008] One end of the upper support beam is fixedly connected to the top of the center tube, and the other end is fixedly connected to the upper I-shaped ring beam; one end of the lower support beam is fixedly connected to the bottom of the center tube, and the other end is fixedly connected to the lower I-shaped ring beam; the lower end of the roof truss is connected to the embedded steel corbel, and the upper end is connected to the upper I-shaped ring beam on the periphery of the upper support beam, and the bottom end of the roof truss is connected to the lower I-shaped ring beam by a cable, and a longitudinal reinforcing truss is erected between adjacent roof trusses.

[0009] Preferably, the roof trusses are arranged symmetrically about the central tube, and the roof trusses as a whole are distributed in an umbrella shape with the central tube as the center; the longitudinal reinforcement trusses as a whole are an annular structure with the central tube as the center.

[0010] Preferably, both ends of the longitudinal reinforcement truss intersect with the roof truss and are fixedly connected to form a stable whole.

[0011] Preferably, the longitudinal reinforcement truss is erected at the upper middle part of the roof truss.

[0012] Preferably, it also includes a hydraulic support rod arranged at the connecting position of the roof truss and the bottom end of the longitudinal reinforcement truss, and a hoop support corbel arranged in the vertical direction of the central tube, and the hydraulic support rod is fixedly connected to the hoop support corbel.

[0013] Preferably, the hoop support corbel includes a hoop which is sleeved on the outer periphery of the center tube and fixedly connected thereto, and a support plate which is arranged on the outer periphery of the hoop, wherein the support plate is an I-beam, and the support plate is fixedly connected to the hydraulic support rod.

[0014] Preferably, the hoop support corbel is arranged in the middle position of the central tube.

[0015] Preferably, the slipform equipment includes truss support columns embedded in the cast silo structure, beams fixedly connected to the truss support columns, hanging devices suspended from the beams, and a working platform, and the roof trusses are tied together by slings installed on the hanging devices.

[0016] Preferably, the upper support beam and the lower support beam are square tube cross-sections respectively, and the number of the upper support beam and the number of the lower support beam are 6 respectively.

[0017] The cast silo tube structure is an annular tube wall structure perpendicular to the ground.

[0018] Beneficial Effects

[0019] The beneficial effects of the utility model are:

[0020] (1) The overall force of the structure of the utility model is reasonable, the structural layout is simplified, and materials are saved. The vertical load is mainly borne by the cast tube wall and the unremoved slipform equipment, and the horizontal load is coordinated and balanced by the circumferentially arranged roof trusses using I-shaped ring beams, upper support beams, and lower support beams.

[0021] (2) The inner circle force is transferred to the cast cylinder wall structure through the roof truss, longitudinal reinforcement truss and cables, and the existing structure is used to bear the force, which greatly improves safety and reduces material consumption.

[0022] (3) The structure of the utility model avoids the need to erect a construction floor stand, thereby saving labor and materials while improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the installation of the self-balancing structure of the floor-free stand of the utility model;

[0024] Figure 2 This is a vertical layout diagram of the adjustable barrel top support structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the installation of the roof truss and longitudinal reinforcement truss of the self-balancing structure of the utility model without ground frame;

[0026] Figure 4 This is a structural schematic diagram of the self-balancing structure roof truss without floor-standing frame of the utility model;

[0027] Figure 5 This is a structural schematic diagram of the longitudinal reinforcement truss of the self-balancing structure of the non-ground-mounted frame of the utility model;

[0028] Figure 6 It is a structural schematic diagram of the central tube, the upper end support beam, and the upper I-shaped ring beam of the utility model self-balancing structure of the floor-free frame;

[0029] Figure 7 It is a structural schematic diagram of the central tube, the lower end support beam, and the lower I-shaped ring beam of the utility model non-ground frame self-balancing structure;

[0030] Figure 8 It is a structural schematic diagram of a self-balancing structure hoop supporting a corbel of a utility model floor-free stand.

[0031] In the figure: 1. Cast silo tube structure, 2. To-be-cast silo tube structure, 3. Slipform equipment, 3-1. Truss support column, 3-2. Crossbeam, 3-3. Hanging device, 3-4. Working platform, 4. Sling, 5. Embedded steel corbel, 6. Adjustable cylinder top support structure, 6-1. Center cylinder, 6-2. Upper support beam, 6-3-1. Upper I-shaped ring beam, 6-3-2. Lower I-shaped ring beam, 6-4. Lower support beam, 6-5. Hoop support corbel, 6-6. Hydraulic support rod, 6-7. Roof truss, 6-8. Longitudinal reinforcement truss, 6-9. Cable, 6-10. Truss connecting key. DETAILED DESCRIPTION

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0033] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] like Figure 1 As shown, the present embodiment provides a ground-free self-balancing structure for silo roof construction, comprising: a cast silo tube structure 1, a silo tube structure to be cast 2 located at the top of the silo tube, a slipform device 3 arranged at the top of the tube wall of the cast silo tube structure 1, an embedded steel corbel 5 located at the upper part of the inner wall of the cast silo tube structure 1, and an adjustable tube top support structure 6.

[0035] The cast silo tube structure 1 is an annular tube wall structure perpendicular to the ground, and the top of the tube wall is provided with a slipform device 3 used in the previous casting. The slipform device 3 is an existing structure in the prior art, including a truss support column 3-1 buried in the cast silo tube structure 1, a crossbeam 3-2 fixedly connected to the truss support column 3-1, a hanging device 3-3 hanging below the crossbeam 3-2, and a working platform 3-4. The hanging device 3-3 is connected to the sling 4. The adjustable tube top support structure 6 is hung by the sling 4 connected to the slipform device 3 and connected to the embedded steel bracket 5.

[0036] The schematic diagram of the adjustable cylinder top support structure 6 is as follows Figure 2 As shown, it includes a central tube 6-1, upper support beams 6-2 arranged radially around the top of the central tube 6-1, lower support beams 6-4 arranged radially around the bottom of the central tube 6-1, an upper I-shaped ring beam 6-3-1 arranged on the outer periphery of the upper support beam 6-2, a lower I-shaped ring beam 6-3-2 arranged on the outer periphery of the lower support beam 6-4, a roof truss 6-7, and a longitudinal reinforcement truss 6-8.

[0037] One end of the upper support beam 6-2 is fixedly connected to the top of the central tube 6-1, and the other end is fixedly connected to the upper I-shaped ring beam 6-3-1; one end of the lower support beam 6-4 is fixedly connected to the bottom of the central tube 6-1, and the other end is fixedly connected to the lower I-shaped ring beam 6-3-2; in this embodiment, the upper support beam 6-2 and the lower support beam 6-4 are respectively square tube sections, and the number of the upper support beam 6-2 and the lower support beam 6-4 are respectively 6, such as Figure 6 and Figure 7 In addition, a plurality of truss connection keys 6-10 are respectively arranged on the outer periphery of the upper I-shaped ring beam 6-3-1 and the lower I-shaped ring beam, which are respectively used to connect with the upper end of the roof truss 6-7 and to connect with the lower end of the roof truss 6-7 through the cable 6-9, so as to realize the connection with the roof truss 6-7.

[0038] The lower end of the roof truss 6-7 is connected to the embedded steel corbel 5, and the upper end is connected to the upper I-shaped ring beam 6-3-1 on the outer periphery of the upper end support beam 6-2. The bottom end of the roof truss 6-7 is connected to the lower I-shaped ring beam through the cable 6-9. During installation, the roof truss 6-7 is fixed to the embedded steel corbel 5 through the cable 4 installed on the hanging device 3-3.

[0039] A longitudinal reinforcing truss 6-8 is erected between adjacent roof trusses 6-7. The longitudinal reinforcing truss 6-8 is erected at the middle and upper part of the roof truss 6-7, and both ends of the longitudinal reinforcing truss 6-8 are respectively crossed and fixedly connected with the roof truss 6-7 to form a stable whole.

[0040] During erection, the roof trusses 6-7 are arranged symmetrically about the central tube 6-1. After erection, the roof trusses 6-7 are distributed in an umbrella shape with the central tube 6-1 as the center, and the longitudinal reinforcement trusses 6-8 are annular structures with the central tube 6-1 as the center. Figure 3 As shown in the figure, the longitudinal reinforcement trusses 6-8 are two groups, which form two ring structures after being erected. The structure of the roof trusses 6-7 and the longitudinal reinforcement trusses 6-8 can be referred to Figure 4 , Figure 5 .

[0041] The ground-free self-balancing structure of the utility model also includes a hydraulic support rod 6-6 arranged at the connecting position of the bottom end of the roof truss 6-7 and the longitudinal reinforcement truss 6-8, and a hoop support bracket 6-5 arranged in the vertical direction of the central tube 6-1. The hydraulic support rod 6-6 is fixedly connected to the hoop support bracket 6-5 to stabilize the structural position when the silo structure adjustment is difficult.

[0042] The structural diagram of the hoop support corbel 6-5 is as follows Figure 8As shown, it includes a hoop sleeved on the outer periphery of the central tube 6-1 and fixedly connected thereto, and a support plate arranged on the outer periphery of the hoop, the support plate can be an I-beam structure, and the hydraulic support rod 6-6 is fixedly connected to the hoop support bracket 6-5 and the central tube 6-1 through the support plate. The hoop support bracket 6-5 is preferably arranged in the middle of the central tube 6-1.

[0043] The construction of the floor-free self-balancing structure of the warehouse roof construction using the utility model includes the following steps:

[0044] Step 1: Use the slipform equipment 3 to construct the cast silo structure 1 of the vertical silo, and construct it to about 500mm below the elevation of the top floor of the silo, and embed the steel bracket 5 on the inner wall of the cast silo structure 1.

[0045] Step 2: Use a tower crane and a truck crane to install two radially intersecting roof trusses 6-7 on the ground. The top ends of the two roof trusses 6-7 are respectively connected to the upper support beam 6-2 and the I-shaped ring beam at the top of the central tube 6-1, and the bottom ends of the two roof trusses 6-7 are respectively connected to the lower support beam 6-4 and the I-shaped ring beam at the bottom of the central tube 6-1 through cables 6-9.

[0046] Step 3: Use the hanging device 3-3 under the sliding formwork equipment 3 of the silo tube structure 1 that has been cast at the corresponding position to lift the two roof trusses 6-7 that have been spliced ​​on the ground to connect with the embedded steel bracket 5.

[0047] Step 4: After reaching the predetermined position, continue to adjust the retraction and extension of the bottom cable 6-9 of the roof truss 6-7 to adjust the warehouse roof structure; when adjustment is difficult, use the hydraulic support rod 6-6 set on the roof truss 6-7 and the hoop support bracket 6-5 around the center tube 6-1 to adjust the middle section.

[0048] Step 5: Advance in clockwise direction, using 3 pairs of sliding formwork equipment to move the two already in place roof trusses 6-7 forward to the adjacent roof trusses 6-7.

[0049] Step 6: erect the longitudinal reinforcing truss 6-8 between the two roof trusses 6-7, and repeat steps 3 to 5 until the annular skeleton of the roof truss 6-7 and the longitudinal reinforcing truss 6-8 are spliced.

[0050] Step 7: Release the sling 4 and set up a silo-shaped formwork on the top of the steel frame constructed above.

[0051] Step 8: pouring concrete: pouring concrete in the silo-shaped formwork to complete the construction of the silo structure 2 to be poured.

[0052] In the above construction method, the roof truss 6-7 is installed by the method of instantaneous needle pushing of two radial trusses. Each time a truss is pushed forward, it is connected through the longitudinal reinforcement truss 6-8, which improves the integrity and ensures the safety of construction. At the same time, the inner circle force is transmitted to the wall structure of the cast silo structure 1 through the roof truss 6-7, the longitudinal reinforcement truss 6-8 and the cable 6-9.

[0053] The above examples of the utility model are described in detail, but the content is only the preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A self-balancing structure for a floor-free frame used for silo roof construction, characterized in that include: A cast silo tube structure, a slipform device arranged on the top of the tube wall of the cast silo tube structure, an embedded steel bracket located on the upper part of the inner wall of the cast silo tube structure, and an adjustable tube top support structure, wherein the adjustable tube top support structure is suspended and connected to the embedded steel bracket through a sling connected to the slipform device; The adjustable cylinder top support structure includes a central cylinder, upper support beams radially arranged around the top of the central cylinder, lower support beams radially arranged around the bottom of the central cylinder, upper I-shaped ring beams arranged around the outer periphery of the upper support beams, lower I-shaped ring beams arranged around the outer periphery of the lower support beams, and a roof truss; One end of the upper support beam is fixedly connected to the top of the center tube, and the other end is fixedly connected to the upper I-shaped ring beam; one end of the lower support beam is fixedly connected to the bottom of the center tube, and the other end is fixedly connected to the lower I-shaped ring beam; the lower end of the roof truss is connected to the embedded steel corbel, and the upper end is connected to the upper I-shaped ring beam on the periphery of the upper support beam, and the bottom end of the roof truss is connected to the lower I-shaped ring beam by a cable, and a longitudinal reinforcing truss is erected between adjacent roof trusses.

2. The self-balancing structure of the floor-free stand according to claim 1, characterized in that: The roof trusses are arranged symmetrically about the central tube, and the roof trusses are distributed in an umbrella shape with the central tube as the center; the longitudinal reinforcement trusses are annular structures with the central tube as the center.

3. The self-balancing structure of the floor-free stand according to claim 1, characterized in that: The two ends of the longitudinal reinforcement truss respectively intersect with the roof truss and are fixedly connected to form a stable whole.

4. The self-balancing structure of the floor-free stand according to claim 1, characterized in that: The longitudinal reinforcement truss is erected on the upper middle part of the roof truss.

5. The self-balancing structure of the floor-free stand according to claim 1, characterized in that: It also includes a hydraulic support rod arranged at the connecting position of the roof truss and the bottom end of the longitudinal reinforcement truss, and a hoop support corbel arranged in the vertical direction of the central tube, and the hydraulic support rod is fixedly connected to the hoop support corbel.

6. The self-balancing structure of the floor-free stand according to claim 5, characterized in that: The hoop support corbel comprises a hoop which is sleeved on the outer periphery of the central tube and fixedly connected thereto, and a support plate which is arranged on the outer periphery of the hoop, and the support plate is fixedly connected to the hydraulic support rod.

7. The self-balancing structure of the floor-free stand according to claim 5, characterized in that: The hoop support corbel is arranged in the middle position of the central tube.

8. The self-balancing structure of the floor-free stand according to claim 1, characterized in that: The slipform equipment includes truss support columns embedded in the cast silo structure, beams fixedly connected to the truss support columns, hanging devices hanging below the beams, and a working platform. The roof trusses are tied together by slings installed on the hanging devices.

9. The self-balancing structure of the floor-free stand according to claim 1, characterized in that: The upper support beam and the lower support beam are square tube sections respectively, and the number of the upper support beam and the number of the lower support beam are 6 respectively.

10. The self-balancing structure of the floor-free stand according to claim 1, characterized in that: The cast silo tube structure is an annular tube wall structure perpendicular to the ground.

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