Connecting piece and assembly type steel structure supporting platform system

Abstract

The invention discloses a connecting piece and an assembly type steel structure supporting platform system, and particularly relates to the technical field of steel frame structures, the connecting piece is used for connecting a first part and a second part, the connecting piece comprises a trepanning connecting filling plate, an eccentric trepanning circular plate and a connecting clamping plate, and hole sites in the eccentric trepanning circular plate are eccentrically arranged; the eccentric trepanning circular plate can be rotated to realize local fine adjustment of end connection, so that the installation error of parts can be overcome, the vertical web member of the whole truss can be better installed, and the two ends of the vertical web member can be adjusted, so that a proper field installation angle can be found, and effective installation can be carried out.

Description

Technical Field

[0001] The present invention relates to the technical field of steel frame structures, and particularly relates to a connecting piece and an assembled steel structure support platform system. Background Art

[0002] Silos and other structures are often used for storing bulk materials, which are divided into two major categories: agricultural silos and industrial silos. Agricultural silos are used to store grains, feeds, etc., while industrial silos are used to store coke, cement, etc. Due to their large height and diameter, the construction is complex, and the sizes of each type of silo vary according to different standards, so it is necessary to specially assemble silo structures of specific sizes. Therefore, the sizes of their steel structure support platforms are also different. At the same time, it is difficult to demolish the platform after installation and use. Often, on-site cutting is used, so the steel structure support platform is only used once and cannot be recycled. Subsequently, remelting steel causes a great waste of energy.

[0003] The traditional solution uses steel bars as the tension members of the lower chord. It is necessary to use turnbuckles to apply pre-tightening force to resist the self-weight deflection of the steel bars to form the stiffness of the truss. However, it is difficult to control the pre-tightening force during actual construction. Excessive pre-tightening force will cause the steel bars to break, resulting in the failure and damage of the structure, posing a safety hazard. In today's pursuit of sustainable development, the reuse of building materials is very necessary. Therefore, it is urgent to develop an assembled, disassembled, and integrated steel structure support platform. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a connecting piece and an assembled steel structure support platform system, which solve at least one of the technical problems proposed in the background art.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the technical solution adopted by the present invention is:

[0008] In the first aspect, a connecting piece is provided for connecting a first component and a second component. The connecting piece includes:

[0009] An opening connection filler plate, one end of which is fixedly connected to the first component;

[0010] An eccentric opening circular plate, which is installed at the hole position of the opening connection filler plate; a through hole is provided at the eccentric position of the eccentric opening circular plate;

[0011] A connection splint, one end of which is fixedly connected to the second component;

[0012] Moreover, the opening connection filling plate is inserted into the connection clamping plate, and the pin shaft penetrates through the connection clamping plate and passes through the through hole at the eccentric position of the eccentric opening circular plate.

[0013] Preferably, one end of the connection clamping plate is fixed with an end plate, and is fixedly connected to the second component through the end plate.

[0014] Preferably, a positioning pin is further included for limiting the pin shaft.

[0015] In a second aspect, an assembled steel structure support platform system is further provided, including:

[0016] A cross-shaped main truss, the upper and lower chord members of the cross-shaped main truss are connected by vertical web members;

[0017] A circumferential connection truss, the end parts of the upper chord members of the cross-shaped main truss are connected through the circumferential connection truss; the middle positions of the lower chord members of the cross-shaped main truss are connected through the circumferential connection truss;

[0018] A circumferential edge sealing beam, the end parts of the lower chord members of the cross-shaped main truss are connected through the circumferential edge sealing beam, and a plurality of secondary trusses are connected between the circumferential connection truss and the circumferential edge sealing beam;

[0019] A first-level circumferential secondary beam, a first-level circumferential secondary beam is arranged at the upper chord three-point position of the secondary truss;

[0020] Moreover, the cross-shaped truss and the vertical web member, the circumferential connection truss and the vertical web member, and the secondary truss and the vertical web member are all connected through the above-mentioned connecting pieces.

[0021] Preferably, secondary beams are arranged between the circumferential connection truss and the circumferential edge sealing beam and between the secondary trusses.

[0022] Preferably, the circumferential connection truss, the circumferential edge sealing beam and the first-level circumferential secondary beam are all segmented.

[0023] Preferably, a plurality of circumferential connection segments are connected end to end by bolts to form the circumferential connection truss.

[0024] Preferably, the cross-shaped main truss includes two trapezoidal trusses arranged perpendicularly.

[0025] Preferably, the secondary trusses are all segmented and are formed by connecting end to end by bolts through straight connection segments.

[0026] Preferably, the two trapezoidal trusses are connected through a cross-shaped joint located at the central position.

[0027] (III) Beneficial effects

[0028] The present invention provides a connecting piece and an assembled steel structure support platform system, which have the following beneficial effects compared with the prior art:

[0029] Through the design of the connecting piece, the assembled construction can be realized safely and reliably, the problem that the on-site assembly cannot be carried out can be effectively solved, the installation angle of the component can be adjusted to better reduce the construction difficulty caused by the design and processing errors, and finally it can be disassembled and reused after the construction is completed, realizing the problem of the difficulty of using the steel structure support platform as a turnover material. And through the setting of the pin shaft, all web members are two-force members, so that they only bear the tensile or compressive force in the axial direction of the rod and do not bear the bending moment, which can effectively improve the structural collapse caused by the insufficient bearing capacity of the web members. Brief Description of the Drawings

[0030] The present invention will be further described below with reference to the drawings and embodiments:

[0031] Figure 1 is the overall schematic diagram of the connecting piece of the present invention;

[0032] Figure 2 is the overall schematic diagram of the connecting piece of the present invention with one side connecting splint removed;

[0033] Figure 3 is the connection schematic diagram of the connecting piece of the present invention and the vertical web member;

[0034] Figure 4 is the connection schematic diagram of the open-hole connection filling plate and the first component of the present invention;

[0035] Figure 5 is a partial frame diagram of the assembled steel structure support platform system of the present invention;

[0036] Figure 6 is the three-dimensional diagram of the cross-shaped main truss, circumferential connecting truss and secondary truss involved in the present invention;

[0037] Figure 7 is the three-dimensional diagram of the cross-shaped main truss, circumferential connecting truss, secondary truss, primary secondary beam and circumferential edge-sealing beam involved in the present invention;

[0038] Figure 8 is the overall three-dimensional diagram of the assembled steel structure support platform of the present invention;

[0039] Figure 9 is the connection schematic diagram of the open-hole connection filling plate and the straight connection section of the present invention;

[0040] Figure 10 is the circumferential connection section schematic diagram of the present invention;

[0041] Figure 11 is the joint schematic diagram of the present invention;

[0042] Figure 12 is the partial three-dimensional diagram of the cross-shaped main truss of the present invention;

[0043] Among them, the first component 1, the second component 2, the opening connection filling plate 3, the eccentric opening circular plate 4, the connection clamping plate 5, the end plate 501, the pin shaft 6, the positioning pin 601, the cross-shaped main truss 7, the cross-shaped joint 701, the standard section steel pipe 702, the circumferential connection truss 8, the circumferential connection section 801, the circumferential edge-sealing beam 9, the secondary truss 10, the straight connection section 101, the first-level circumferential secondary beam 11, the second-level secondary beam 12, the vertical web member 13, the joint 14, and the trapezoidal truss 15. Specific implementation method

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. 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.

[0046] To better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners:

[0047] As shown in the attached Figures 1-10 drawing, the present invention provides a connecting member and an assembled steel structure support platform system. The assembled steel structure support platform system is composed of a cross-shaped main truss 7, a circumferential connection truss 8, a secondary truss 10, a first-level circumferential secondary beam 11, a second-level secondary beam 12, and a circumferential edge-sealing beam 9. The vertical web members 13 of the cross-shaped main truss 7, the circumferential connection truss 8, and the secondary truss 10 are all connected by connecting members.

[0048] Specifically, as Figures 1-4 shown in the drawing, the above-mentioned connecting member is used for connecting the first component 1 and the second component 2. The connecting member includes an opening connection filling plate 3, an eccentric opening circular plate 4, and a connection clamping plate 5. One end of the opening connection filling plate 3 is fixedly connected to the first component 1; the eccentric opening circular plate 4 is installed at the hole position of the opening connection filling plate 3; a through hole is provided at the eccentric position of the eccentric opening circular plate 4; one end of the connection clamping plate 5 is fixedly connected to the second component 2;

[0049] and, the opening connection filling plate 3 is inserted into the connection clamping plate 5, and the pin shaft 6 penetrates through the connection clamping plate 5 and passes through the through hole at the eccentric position of the eccentric opening circular plate 4;

[0050] Furthermore, in order to facilitate the realization of fixed connection, one end of the connection clamping plate 5 is fixed with an end plate 501, and the end plate is fixedly connected to the second component 2, specifically, it can be welding or bolt connection.

[0051] The eccentrically - perforated circular plate 4 is placed at the hole position of the perforated connecting filler plate 3, and the pin shaft 6 is located at the hole position of the eccentrically - perforated circular plate 4. The connecting splint 5 is welded to the vertical web member 13. The perforated connecting filler plate 3 is inserted into the connecting splint 5, and the pin shaft 6 is limited and fixed by the positioning pin 601.

[0052] Specifically, in the embodiment of the present invention, the first component 1 can be a steel pipe member, and then the two ends of the steel pipe member are connected to the cross - shaped main truss 7, the circumferential connecting truss 8, and the secondary truss 10 through bolts, and the second component 2 is the vertical web member 13.

[0053] Through the above - mentioned connecting pieces, when installing on - site, since the hole positions in the eccentrically - perforated circular plate 4 are eccentrically arranged, the eccentrically - perforated circular plate 4 can be rotated to achieve local fine - tuning of the end connection. In this way, the installation error of the components can be overcome, enabling the vertical web members 13 of the entire truss to be better installed. Both ends of the vertical web member 13 can be adjusted to find a suitable on - site installation angle for effective installation.

[0054] Furthermore, an assembled steel - structure support platform system provided by the embodiment of the present invention, as Figure 5 - as shown in Fig. 12, includes a cross - shaped main truss 7, a circumferential connecting truss 8, a circumferential edge - sealing beam 9, and a first - level circumferential secondary beam 11; as Figure 12 shown, the upper and lower chord members of the cross - shaped main truss 7 are connected by vertical web members 13, and the end of the upper chord member of the cross - shaped main truss 7 is connected by the circumferential connecting truss 8; the middle position of the lower chord member of the cross - shaped main truss 7 is connected by the circumferential connecting truss 8;

[0055] The end of the lower chord member of the cross - shaped main truss 7 is connected by the circumferential edge - sealing beam 9, and a plurality of secondary trusses 10 are connected between the circumferential connecting truss 8 and the circumferential edge - sealing beam 9; the first - level circumferential secondary beam 11 is arranged at the upper chord three - point of the secondary truss 10;

[0056] And the cross - shaped main truss 7 and the vertical web member 13, the circumferential connecting truss 8 and the vertical web member 13, and the secondary truss 10 and the vertical web member 13 are all connected by the above - mentioned connecting pieces.

[0057] And based on Figures 5-8 , and Figure 12 shown, the upper and lower chord members of the cross - shaped main truss 7 are connected by vertical web members 13. Moreover, the upper and lower circumferential connecting trusses 8 are also connected by vertical web members 13, that is, the circumferential connecting truss 8 adopts a vierendeel truss and only vertical web members 13 are provided. The secondary truss 10 also has vertical web members 13.

[0058] In the embodiment of the present invention, the cross-shaped main truss 7 is set as the main load-bearing structure. Rectangular steel is used for both the upper and lower chords of the cross-shaped main truss 7, and circular steel pipes are used for the vertical web members 13 and the diagonal web members. In the embodiment of the present invention, the cross-shaped truss 7, the circumferential connecting truss 8, and the secondary truss 10 are the first components 1, and the vertical web member 13 is the second component 2; rectangular tube sections are used for the upper and lower chords of the circumferential connecting truss 8, and circular steel pipe sections are used for the vertical web members 13.

[0059] Specifically, during the implementation process, the cross-shaped main truss 7 includes two trapezoidal trusses 15 arranged perpendicularly. Specifically, as Figure 12 shown, the length of the upper chord of the cross-shaped main truss 7 is greater than that of the lower chord of the cross-shaped main truss 7.

[0060] Between the circumferential connecting truss 8 and the surrounding circumferential supports, that is, it is tied to the circumferential edge beam 9 through the secondary truss 10 to form an integral structure. The upper chord of the cross-shaped main truss 7 and the secondary truss 10 are arranged at an angle; the lower chord of the cross-shaped main truss 7 and the secondary truss 10 are arranged horizontally, and thus a triangular plane truss outside the central horizontal range is formed through the secondary truss 10. The upper chord of the cross-shaped main truss 7 and the secondary truss 10 are connected through the joint 14, and the joint 14 has an angle.

[0061] The upper chord of the above-mentioned secondary truss 10 is under compression and directly bears the construction load of pouring concrete on the top of the reinforced concrete silo. The upper chord of the secondary truss 10 uses a rectangular steel pipe section; the lower chord of the secondary truss 10 is under tension. To improve the structural stiffness and redundancy, the lower chord of the secondary truss 10 also uses a rectangular steel pipe section.

[0062] To improve the circumferential stiffness of the structure and the overall torsional stiffness of the structure, a first-level circumferential secondary beam 11 is provided at the one-third point of the upper chord of the secondary truss 10. The first-level circumferential secondary beam 11 can also reduce the out-of-plane calculated length of the upper chords of the cross-shaped main truss 7 and the secondary truss 10, and prevent the upper chords of the cross-shaped main truss 7 and the secondary truss 10 from undergoing out-of-plane instability failure.

[0063] Between the circumferential connecting truss 8 and the circumferential edge beam 9, secondary beams 12 are provided between the secondary trusses 10. That is, the secondary beams 12 are provided in the direction perpendicular to the first-level circumferential secondary beam 11 as the lower supports of the silo top scaffolding.

[0064] In one embodiment, the circumferential connecting truss 8, the circumferential edge beam 9, and the first-level circumferential secondary beam 11 are all segmented.

[0065] Specifically, the circumferential connecting truss 8 is composed of multiple circumferential connecting segments 801 connected by bolts at the head and tail, as Figure 10As shown, the end of the circumferential connection segment 801 is provided with an end, and the ends of adjacent circumferential connection segments 801 are bolted together. Similarly, the circumferential edge beam 9 and the first-level circumferential secondary beam 11 can also be formed by bolt-connecting the ends of multiple circumferential connection segments 801 end to end.

[0066] In one embodiment, as Figure 12 shown, two trapezoidal trusses 15 are connected by a cross joint 701 located at the center position. That is, the four ends of the cross joint 701 are respectively bolted to the standard section steel pipe 702, thereby realizing the vertical connection of the two trapezoidal trusses 15.

[0067] In one embodiment, the circumferential connection truss 8 and the secondary truss 10 are connected by bolts at the joint 13. As Figure 5 shown and Figure 11 shown. Through the joint 13 with an angular setting, the cross main truss 7 and the secondary truss 10 are arranged at an angle.

[0068] In one embodiment, the secondary trusses 10 are all segmented and are formed by bolt-connecting the ends of the straight connection segments 101 end to end.

[0069] Specifically, the total height of the cross main truss 7 is 4.2 m. The heights of the upper and lower chords of the main truss are constant within the central horizontal range (a circle with a central diameter of 7 m), and outside the central horizontal range is a triangular planar truss. To improve the structural stiffness and redundancy.

[0070] The connector provided in the embodiment of the present invention, as well as the prefabricated steel structure support platform system, has a simple structure and reasonable design, can realize rapid assembly construction, and has a high reuse rate. It can not only provide a steel structure construction support platform with sufficient bearing capacity and safety, but also can be adjusted to adapt to silo structures of different specifications and sizes by replacing different standard section steel pipes, so as to achieve the purpose of assembled and integrated installation construction and turnover use. And through the connector, the construction is guaranteed, and the connection angles of the steel pipes can be finely adjusted to minimize the defects brought to the components by construction stress, which can greatly accelerate the on-site construction and installation speed, thereby effectively reducing the construction period and saving costs.

[0071] Combined with a detailed embodiment, a prefabricated steel structure support platform system is provided. The cross main truss 7 composed of two vertically arranged trapezoidal trusses 15 is used as the main load-bearing structure. The total height of the cross main truss 7 is 4.2 m. The heights of the upper and lower chords of the cross main truss 7 are constant within the central horizontal range (a circle with a central diameter of 7 m), and outside the central horizontal range is a triangular planar truss. To improve the structural stiffness and redundancy, rectangular steel is used for both the upper and lower chords of the main truss, and circular steel pipes are used for the vertical and diagonal web members of the main truss.

[0072] The cross-shaped main trusses 7 are connected by the circumferential connecting trusses 8. The circumferential connecting trusses 8 adopt open-web trusses, with only vertical web members 13 provided. The upper and lower chords of the circumferential connecting trusses 8 adopt rectangular tube sections, and the vertical web members 13 adopt circular steel tube sections. The total height of the circumferential connecting trusses 8 is 4.2 m.

[0073] The circumferential connecting trusses 8 and the surrounding circumferential supports are tied together by 12 secondary trusses 10 to form an integral structure. The upper chords of the secondary trusses 10 are in compression and directly bear the construction load of pouring concrete on the top of the reinforced concrete silo. The upper chords of the secondary trusses 10 adopt rectangular steel tube sections; the lower chords of the secondary trusses 10 are in tension. To improve the structural stiffness and redundancy, the lower chords of the secondary trusses 10 also adopt rectangular steel tube sections.

[0074] To improve the circumferential stiffness of the structure and the overall torsional stiffness of the structure, a first-level circumferential secondary beam 11 is set at the one-third points of the upper chords of the 12 secondary trusses 10. The first-level circumferential secondary beam 11 can reduce the out-of-plane calculated length of the upper chords of the main and secondary trusses and prevent the out-of-plane instability failure of the upper chords of the main and secondary trusses. A second-level secondary beam 12 is set in the direction perpendicular to the first-level circumferential secondary beam 11 as the lower support point of the silo top scaffolding.

[0075] Specifically, during the construction process:

[0076] First, the assembly of the standard-section steel pipes and the joints is connected by bolts.

[0077] Secondly, when installing the steel pipes with connecting splints 5 on-site, due to the installation error between the standard-section steel pipes and the joints, the installation angle of the required steel pipes does not conform to the design drawings. Since the holes in the eccentrically opened circular plate 4 are eccentrically arranged, the eccentrically opened circular plate 4 can be rotated to realize the local fine adjustment of the end connection, so that the entire vertical web members 13 of the truss can be better installed. Both ends of the vertical web members 13 can be adjusted, so as to find a suitable on-site installation angle for effective installation.

[0078] Finally, the cross-shaped main trusses 7 and the secondary trusses 10 are connected by end plates and bolts using the segmented circumferential connecting trusses 8, circumferential edge beams 9 and first-level circumferential secondary beams 11.

[0079] In the embodiments of the present invention, through the designed connecting members, assembly construction can be achieved safely and reliably, the problem that on-site assembly cannot be carried out can be effectively solved, the installation angle of components can be adjusted to better reduce the construction difficulty caused by design and processing errors, and various sizes of silo-like structures can be adapted through standard parts. Finally, after the construction is completed, it can be disassembled and reused, realizing the problem of the difficulty of using the steel structure support platform as a reusable material. And through the setting of the pin shaft 6, all web members are two-force members, which only bear the tensile or compressive force in the axial direction of the rod and do not bear bending moment, which can effectively improve the structural collapse caused by insufficient bearing capacity of the web members. In the traditional scheme, steel bars are used as the tension members of the lower chord, and a turnbuckle is needed to apply a pre-tightening force to resist the self-weight deflection of the steel bars to form the stiffness of the truss; however, it is difficult to control the pre-tightening force in actual construction. Excessive pre-tightening force will cause the steel bars to break, resulting in structural failure and potential safety hazards. Compared with the traditional scheme, the embodiments of the present invention have clear stress and a clear force transmission path. The components are rigid members, which improve the structural stiffness and safety on the premise of reducing the steel consumption of the structure.

[0080] It should be noted that in this article, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0081] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A connector for connecting a first component (1) and a second component (2), characterized in that: The connecting piece comprises: An open hole connecting filler plate (3), wherein one end of the open hole connecting filler plate (3) is fixedly connected to the first component (1); An eccentric perforated circular plate (4), the eccentric perforated circular plate (4) being installed at the hole position of the perforated connecting filling plate (3); a through hole is provided at the eccentric position of the eccentric perforated circular plate (4); A connecting clamp (5), one end of the connecting clamp (5) being fixedly connected to the second component (2); Furthermore, the perforated connecting filler plate (3) is inserted into the connecting clamp plate (5), and the pin shaft (6) penetrates the connecting clamp plate (5) and passes through the eccentric through hole of the eccentric perforated circular plate (4).

2. The connector according to claim 1, characterized in that: An end plate (501) is fixed to one end of the connecting clamping plate (5), and is fixedly connected to the second component (2) via the end plate.

3. The connector according to claim 1, characterized in that: It also includes a positioning pin (601) for limiting the position of the pin shaft (6).

4. An assembled steel structure support platform system, characterized in that: include: A cross main truss (7), wherein the upper and lower chords of the cross main truss (7) are connected via a vertical web member (13); A ring-shaped connecting truss (8), wherein the ends of the upper chords of the cross main trusses (7) are connected via the ring-shaped connecting trusses (8); and the middle positions of the lower chords of the cross main trusses (7) are connected via the ring-shaped connecting trusses (8); Annular edge sealing beam (9), the lower chord ends of the cross main trusses (7) are connected via the Annular edge sealing beam (9), and the Annular connecting trusses (8) and the Annular edge sealing beam (9) are connected via a plurality of secondary trusses (10); A primary annular secondary beam (11), wherein the primary annular secondary beam (11) is arranged at the upper chord three-point point of the secondary truss (10); Furthermore, the cross truss (7) and the vertical web member (13), the annular connecting truss (8) and the vertical web member (13), and the secondary truss (10) and the vertical web member (13) are all connected via the connecting member described in claim 1.

5. The assembled steel structure support platform system according to claim 4 is characterized in that: Secondary secondary beams (12) are arranged between the annular connecting trusses (8) and the annular edge sealing beams (9) and between the secondary trusses (10).

6. The assembled steel structure support platform system according to claim 4 is characterized in that: The annular connecting trusses (8), the annular edge sealing beams (9) and the primary annular secondary beams (11) are all segmented.

7. The assembled steel structure support platform system according to claim 6 is characterized in that: A plurality of annular connection segments (801) are connected end to end by bolts to form an annular connection truss (8).

8. The assembled steel structure support platform system according to claim 4 is characterized in that: The cross main truss (7) comprises two vertically arranged trapezoidal trusses (15).

9. The assembled steel structure support platform system according to claim 4 is characterized in that: The secondary trusses (10) are all segmented and are connected by bolts at the head and tail of the straight connecting sections (101).

10. The assembled steel structure support platform system according to any one of claims 4 to 9, characterized in that: The two trapezoidal trusses (15) are connected via a cross joint (701) located at the center.

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