A steel structure for coal storage shed

Abstract

The present invention relates to a steel structure for coal storage shed, comprising a supporting foundation and a truss structure arranged thereon, wherein the truss structure comprises N1 arch trusses and N2 longitudinal trusses, wherein the longitudinal trusses and the arch trusses are welded to form N1*N2 connection points ZH; the lower left and lower right parts of the arch trusses are respectively provided with steel cable connection nodes ZG, the adjacent steel cable connection nodes ZG are connected by side main steel cables, and the lower left and lower right ends are respectively provided with steel cable connection nodes ZD; the adjacent connection nodes ZH form a rectangular array A, the adjacent connection nodes ZH and the steel cable connection nodes ZG form a rectangular array B, and the adjacent steel cable connection nodes ZG and the steel cable connection nodes ZD form a rectangular array C; the diagonals of each matrix are connected by inclined steel cables; the first arch truss and the N1th arch truss are both connected to the supporting foundation by a plurality of steel cables. The steel structure of the technical solution is matched with the PVC membrane cloth for use, has good structural stability, low cost, and short construction period.

Description

Technical Field

[0001] The invention relates to the technical field of steel structures, and in particular to a steel structure for a coal storage shed. Background Art

[0002] In order to meet environmental protection requirements, coal yards need to store the mined coal in a closed manner, and correspondingly, closed coal unloading sites need to be built and equipped.

[0003] Coal storage sheds in the prior art are generally divided into two types, one is a steel structure type and the other is an air membrane type.

[0004] Both of the above structures have their own defects:

[0005] (1) The steel structure is a traditional building steel structure format. Due to the limitations of the production specifications of the cover plate, the beams and columns are densely arranged, the cost is high, the construction period is long, and the maintenance cost is high.

[0006] (2) The air membrane type coal storage shed needs to be continuously inflated, which requires a dedicated air compressor and power supply, which consumes a lot of resources. In addition, the service life of the air membrane is short and it is more susceptible to accidental damage. After it ages or is damaged, it needs to be replaced, and the maintenance and replacement costs are high.

[0007] Therefore, the coal yard is in urgent need of a coal storage shed with stable structure, short construction period, low cost and high reliability. Summary of the invention

[0008] The technical problem to be solved by the present invention is to make up for the deficiencies of the prior art and provide a steel structure for a coal storage shed.

[0009] To solve the above technical problems, the technical solution of the present invention is:

[0010] A steel structure for a coal storage shed comprises a supporting foundation and a truss structure, wherein the truss structure is arranged on the supporting foundation through a connecting structure;

[0011] The truss structure includes N1 arch trusses and N2 longitudinal trusses. The N1 arch trusses are arranged in sequence from front to back at a certain interval, and the N2 longitudinal trusses are arranged from left to right at a certain interval. Each longitudinal truss is welded to the N1 arch trusses to form N1*N2 connection points ZH.

[0012] The lower left and lower right parts of the N1 arch trusses are respectively provided with steel cable connection nodes ZG, and adjacent steel cable connection nodes ZG are connected by side main steel cables; the steel cable connection node ZG of the lower left part of the arch truss is located between the lower left end of the arch truss and the first longitudinal truss; the steel cable connection node ZG of the lower right part of the arch truss is located between the lower right end of the arch truss and the N2th longitudinal truss;

[0013] The lower left and right ends of the N1 arch trusses are each provided with a steel cable connection node ZD;

[0014] Adjacent connection nodes ZH form a rectangular array A, adjacent connection nodes ZH and cable connection nodes ZG form a rectangular array B, and adjacent cable connection nodes ZG and cable connection nodes ZD form a rectangular array C; the diagonals of rectangular array A, rectangular array B and rectangular array C are all connected by inclined cables;

[0015] The first arch truss is connected to the supporting foundation through a plurality of front longitudinal steel cables, and the connection point between the front longitudinal steel cables and the supporting foundation is located in front of the first arch truss; the N1th arch truss is connected to the supporting foundation through a plurality of rear longitudinal steel cables, and the connection point between the rear longitudinal steel cables and the supporting foundation is located behind the N1th arch truss.

[0016] Furthermore, the truss structure also includes a pair of streamlined trusses arranged behind the N1th arch truss, the pair of streamlined trusses are symmetrically arranged about the left and right symmetric planes of the arch truss, the top ends of the streamlined trusses are welded to the N1th arch truss, and the bottom ends of the streamlined trusses are arranged on the supporting foundation through the connecting structure.

[0017] Furthermore, a lower reinforcing truss and an upper reinforcing truss are welded between the streamlined truss and the N1th arched truss, and a connecting truss is welded between the reinforcing truss and the upper reinforcing truss.

[0018] Furthermore, the connection structure is as follows: seismic bearings are provided at the connection points between the truss structure and the supporting foundation, the seismic bearings are fixedly connected to embedded steel plates, and the embedded steel plates are embedded in the supporting foundation.

[0019] Furthermore, the seismic bearing includes an upper bearing plate, a stainless steel plate, a plane skateboard, a spherical lining plate, a spherical skateboard and a lower bearing plate, the bottom of the upper bearing plate is provided with a conical groove with a lower opening, and the opening of the conical groove is a small diameter, and the top of the conical groove is a large diameter; the upper bearing plate and the lower bearing plate are matched through a conical surface; the spherical lining plate is arranged between the upper bearing plate and the lower bearing plate; the plane skateboard is arranged between the top of the spherical lining plate and the top of the conical groove of the upper bearing plate, and the lower part of the plane skateboard is embedded in the spherical lining plate; the stainless steel plate is arranged between the top of the spherical lining plate and the top of the conical groove of the upper bearing plate, surrounded by the outer periphery of the plane skateboard, and fixedly connected to the spherical lining plate; the spherical skateboard is arranged between the spherical lining plate and the lower bearing plate, and a part of the spherical skateboard is embedded in the lower bearing plate; the material of the plane skateboard and the spherical skateboard are both modified ultra-high molecular weight polyethylene.

[0020] Furthermore, the supporting foundation includes a ring beam and several concrete columns supporting the ring beam. The connection node J between the ring beam and the concrete column is cast in one piece of concrete. The ring beam includes a front portion, a rear portion, a left portion and a right portion of the ring beam. The embedded steel plates are all arranged at the corresponding connection nodes J, and the adjacent concrete columns are used to set up coal retaining walls or entrances and exits.

[0021] Furthermore, the front longitudinal steel cables and the rear longitudinal steel cables are connected to the supporting foundation in the following manner: the lower ends of the front longitudinal steel cables and the rear longitudinal steel cables are hinged to the ear plate A through the cable joint A, and the ear plate A is welded and fixed to the embedded steel plate; the inclined steel cables are connected to the truss structure in the following manner: both ends of the inclined steel cables are hinged to the ear plate B through the cable joint B, and the ear plate B is welded to the truss structure.

[0022] Furthermore, the arched trusses and the longitudinal trusses are formed by welding pipes.

[0023] Furthermore, the number N1 of the arch trusses is 6, and the number N2 of the longitudinal trusses is 3.

[0024] Furthermore, the lower left end and the lower right end of the first arch truss are connected by a front transverse steel lock, and the front longitudinal steel cable is divided into a front upper longitudinal steel cable and a front lower longitudinal steel cable, and the front upper longitudinal steel cable and the front lower longitudinal steel cable are both connected to the front transverse steel lock.

[0025] The beneficial effects that can be achieved by the present invention are:

[0026] (1) The span between the arch trusses and the span between the longitudinal trusses are not limited by the production specifications of the covering materials. They can maintain a larger span while meeting the overall strength and stiffness. They have low cost, less construction workload, short construction period and high reliability.

[0027] (2) The arrangement of the steel cables makes the entire cable truss structure more stable.

[0028] (3) When used in combination with PVC membrane cloth, it can be used to store coal after being covered with PVC membrane cloth. It has better waterproof properties and low maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a three-dimensional structural diagram of an embodiment of the present invention;

[0030] Figure 2 is a front view of an embodiment of the present invention;

[0031] Figure 3 is a side view of an embodiment of the present invention;

[0032] Figure 4 is a top view of an embodiment of the present invention;

[0033] Figure 5 is a front view of an arched truss in an embodiment of the present invention;

[0034] Figure 6 is a schematic cross-sectional view of an arch truss and a longitudinal truss in an embodiment of the present invention;

[0035] Figure 7is a schematic main cross-sectional view of the embedded steel plate in the supporting foundation according to an embodiment of the present invention;

[0036] Figure 8 is a schematic top view of the embedded steel plate in the supporting foundation according to an embodiment of the present invention;

[0037] Fig. 9 is a schematic diagram of the connection between the arch truss and the supporting foundation in an embodiment of the present invention;

[0038] Fig.10 is a main cross-sectional view of a seismic bearing in an embodiment of the present invention;

[0039] Fig.11 is a top view of a seismic bearing in an embodiment of the present invention;

[0040] Fig.12 2 is a main schematic diagram of the connection method between the front longitudinal steel cable and the rear longitudinal steel cable and the supporting foundation in an embodiment of the present invention;

[0041] Fig.13 is a top view of the connection method between the front longitudinal steel cable and the rear longitudinal steel cable and the supporting foundation in an embodiment of the present invention;

[0042] Fig.14 This is a main schematic diagram of the connection method between the inclined steel cable and the truss structure in an embodiment of the present invention;

[0043] Fig.15 is a top view of the connection method between the inclined steel cable and the truss structure in an embodiment of the present invention;

[0044] Fig.16 Schematic diagram of the connection method of the front upper longitudinal steel cable, the front lower longitudinal steel cable and the front transverse steel lock in an embodiment of the present invention;

[0045] In the figure: 1-concrete column, 2-concrete horizontal brace, 3-concrete diagonal brace, 4-left part of ring beam, 5-left longitudinal truss, 6-side main steel cable, 7-slanted steel cable, 8-rear arch truss, 9-streamlined truss, 10-middle longitudinal truss, 11-front lower longitudinal steel cable, 12-front horizontal steel lock, 13-front part of ring beam, 14-front arch truss, 15-intermediate arch truss, 16-lower reinforcement truss, 17-connecting truss, 18-upper reinforcement truss, 19-right longitudinal truss, 20-embedded steel plate , 21-rebar, 22-shear plate; 23-seismic bearing, 231-upper bearing plate, 232-stainless steel plate, 233-plane slide plate, 234-spherical lining plate, 235-spherical slide plate, 236-lower bearing plate; 24-cable node A, 25-ear plate A, 26-front upper longitudinal cable, 27-rear longitudinal cable, 28-bolt, 29-nut, 30-right part of ring beam, 31-rear part of ring beam, 32-docking ear seat, 33-cable node B, 34-ear plate B. DETAILED DESCRIPTION

[0046] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Example

[0047] like Figure 1-Figure 4 As shown, a steel structure for a coal storage shed includes a supporting foundation and a truss structure. The truss structure is arranged on the supporting foundation through a connecting structure. The top of the truss structure is 39 meters above the ground.

[0048] The supporting foundation includes a ring beam and several concrete columns 1 supporting the ring beam. The height of the ring beam from the ground is 10.5 meters. The connection node J between the ring beam and the concrete column 1 is cast in one piece of concrete. The ring beam includes a front part 13, a rear part 31, a left part 4 and a right part 30 of the ring beam. The outer dimensions of the ring beam are 150 meters long from front to back and 105 meters wide from left to right. Concrete diagonal braces 3 are provided on the outside of the concrete column 1, and concrete cross braces 2 are provided between the concrete column 1 and the concrete diagonal braces 3. The concrete column 1, the concrete diagonal brace 3 and the concrete cross brace 2 form a stable triangular support, which makes the supporting foundation more stable. The space between adjacent concrete columns 1 is used to set a coal retaining wall or an entrance and exit.

[0049] The truss structure includes 6 arch trusses and 3 longitudinal trusses. The arch trusses and longitudinal trusses are welded by pipes. The main view of the arch truss is as follows: Figure 5 As shown, the cross-sections of the arch truss and longitudinal truss are as follows Figure 6 As shown. The wall of the steel pipe is generally thinner, and the cross-sectional turning radius is larger, so the compression and torsion resistance are good, and the material is saved. The steel pipe has a small contact surface area with the atmosphere, which is easy to protect. The rods are directly welded at the nodes, and there are no dead corners and grooves that are difficult to clean, paint, accumulate moisture and a large amount of dust, making maintenance more convenient. After the tubular components are closed at the entire length and the ends, the inside is not easy to rust, which is conducive to rust prevention and cleaning maintenance. The 6 arch trusses are arranged from front to back with an array distance of 21.5 meters. The first arch truss is called the front arch truss 14, the sixth arch truss is called the rear arch truss 8, and the four arch trusses in the middle are all called the inter-arch trusses 15; the three longitudinal trusses are arranged from left to right, with a horizontal spacing of 22 meters. The three longitudinal trusses are the left longitudinal truss 5, the middle longitudinal truss 10 and the right longitudinal truss 19, and each longitudinal truss is welded to the six arch trusses to form 18 connection points ZH.

[0050] The lower left and lower right parts of the six arch trusses are respectively provided with steel cable connection nodes ZG, and adjacent steel cable connection nodes ZG are connected by the side main steel cable 6; the steel cable connection node ZG of the lower left part of the arch truss is located between the lower left end of the arch truss and the left longitudinal truss 5; the steel cable connection node ZG of the lower right part of the arch truss is located between the lower right end of the arch truss and the right longitudinal truss 19;

[0051] The lower left and right ends of the six arch trusses are each provided with a steel cable connection node ZD;

[0052] Adjacent connection nodes ZH form a rectangular array A, adjacent connection nodes ZH and cable connection nodes ZG form a rectangular array B, and adjacent cable connection nodes ZG and cable connection nodes ZD form a rectangular array C; the diagonals of rectangular array A, rectangular array B and rectangular array C are all connected by inclined cables 7;

[0053] The front arch truss 14 is connected to the supporting foundation through a plurality of front longitudinal steel cables, and the connection point between the front longitudinal steel cables and the supporting foundation is located in front of the front arch truss 14; the lower left end and the lower right end of the front arch truss 14 are connected through a front transverse steel lock 12, and the front longitudinal steel cables are divided into a front upper longitudinal steel cable 26 and a front lower longitudinal steel cable 11, and both the front upper longitudinal steel cable 26 and the front lower longitudinal steel cable 11 are connected to the front transverse steel lock 12, and the connection structure is as shown in FIG. Fig.16 As shown, a pair of docking lugs 32 are fixed face to face on the front transverse steel lock 12 by bolts 28 and nuts 29. The lower end of the front upper longitudinal steel cable 26 and the upper end of the front lower longitudinal steel cable 11 are both hinged to the corresponding docking lugs 32. The angle between the front upper longitudinal steel cable 26 and the front lower longitudinal steel cable 11 is 152°. The rear arch truss 8 is connected to the supporting foundation through a plurality of rear longitudinal steel cables 27. The connection point between the rear longitudinal steel cables 27 and the supporting foundation is located behind the rear arch truss 8. The connection method between the front longitudinal steel cables and the rear longitudinal steel cables 27 and the supporting foundation is as shown in FIG. Fig.12 and Fig.13 As shown: the lower ends of the front longitudinal cable and the rear longitudinal cable 27 are hinged to the ear plate A25 through the cable joint A24, and the ear plate A25 is welded and fixed on the embedded steel plate 20; the connection method of the inclined cable 7 and the truss structure is as shown in Fig.14 and Fig.15 As shown: both ends of the inclined steel cable 7 are hinged to the ear plate B34 through the cable node B33, and the ear plate B34 is welded to the truss structure.

[0054] The truss structure also includes a pair of streamlined trusses 9 arranged behind the rear arched trusses 8, the pair of streamlined trusses 9 are symmetrically arranged about the left and right symmetric planes of the arched trusses, the top of the streamlined trusses 9 are welded to the rear arched trusses 8, and the bottom of the streamlined trusses 9 are arranged on the supporting foundation through the connecting structure; a lower reinforcing truss 16 and an upper reinforcing truss 18 are welded between the streamlined trusses 9 and the rear arched trusses 8, and a connecting truss 17 is welded between the reinforcing trusses 16 and the upper reinforcing trusses 18. The arrangement of the streamlined trusses 9 can effectively reduce the windward resistance, so that the wind resistance of the truss structure is enhanced.

[0055] The above connection structure is specifically as follows: the connection between the truss structure and the supporting foundation is provided with an anti-seismic support 23, the anti-seismic support 23 is welded and fixed to the embedded steel plate 20, and the embedded steel plate 20 is embedded in the supporting foundation. Figure 7 and Figure 8As shown, a plurality of "J" shaped steel bars 21 are welded on the embedded steel plate 20, and a plurality of shear plates 22 are welded below the embedded steel plate 20. The "J" shaped steel bars 21 and the shear plates 22 are all cast in the supporting foundation. The embedded steel plates 20 are all arranged at corresponding connection nodes J.

[0056] The specific structure of the above-mentioned anti-seismic support 23 is as follows: Fig.10 and Fig.11 As shown: it includes an upper support plate 231, a stainless steel plate 232, a flat slide plate 233, a spherical lining plate 234, a spherical slide plate 235 and a lower support plate 236, the upper support plate 231 is used to be fixedly connected to the steel cable truss structure, and the lower support plate 236 is used to be fixedly connected to the embedded steel plate 20; the bottom of the upper support plate 231 is provided with a conical groove with a lower opening, and the opening of the conical groove is a small diameter, and the top of the conical groove is a large diameter; the upper support plate 231 and the lower support plate 236 are matched through a conical surface; the spherical lining plate 234 is arranged between the upper support plate 231 and the lower support plate 236; the flat slide plate 233 is arranged on the top of the spherical lining plate 234 The flat skateboard 233 is disposed between the top of the spherical lining plate 234 and the top of the conical groove of the upper support plate 231, and the lower part of the flat skateboard 233 is embedded in the spherical lining plate 234; the stainless steel plate 232 is disposed between the top of the spherical lining plate 234 and the top of the conical groove of the upper support plate 231, surrounds the outer periphery of the flat skateboard 233, and is fixedly connected to the spherical lining plate 234; the spherical skateboard 235 is disposed between the spherical lining plate 234 and the lower support plate 236, and a part of the spherical skateboard 235 is embedded in the lower support plate 236; the material of the flat skateboard 233 and the spherical skateboard 235 are both modified ultra-high molecular weight polyethylene, and the high molecular weight polyethylene material has excellent self-lubricating properties.

[0057] In the description of the present invention, words indicating orientation or positional relationship such as "inside", "outside", "upper", "lower", "front", and "back" are only used to facilitate the description of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] The above is only one embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiment. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications made without departing from the idea of ​​the present invention are all within the protection scope of the present invention.

Claims

1. A steel structure for a coal storage shed, characterized by: It includes a supporting foundation and a truss structure, wherein the truss structure is arranged on the supporting foundation through a connecting structure; The truss structure includes N1 arch trusses and N2 longitudinal trusses. The N1 arch trusses are arranged in sequence from front to back at a certain interval, and the N2 longitudinal trusses are arranged from left to right at a certain interval. Each longitudinal truss is welded to the N1 arch trusses to form N1*N2 connection points ZH. The lower left and right parts of the N1 arch trusses are each provided with a steel cable connection node ZG, and adjacent steel cable connection nodes ZG are connected via a side main steel cable (6); the steel cable connection node ZG at the lower left part of the arch truss is located between the lower left end of the arch truss and the first longitudinal truss; the steel cable connection node ZG at the lower right part of the arch truss is located between the lower right end of the arch truss and the N2th longitudinal truss; The lower left and right ends of the N1 arch trusses are each provided with a steel cable connection node ZD; Adjacent connection nodes ZH form a rectangular array A, adjacent connection nodes ZH and steel cable connection nodes ZG form a rectangular array B, and adjacent steel cable connection nodes ZG and steel cable connection nodes ZD form a rectangular array C; the diagonals of the rectangular array A, the rectangular array B and the rectangular array C are all connected by inclined cables (7); The first arch truss is connected to the supporting foundation via a plurality of front longitudinal steel cables, and the connection point between the front longitudinal steel cables and the supporting foundation is located in front of the first arch truss; the N1th arch truss is connected to the supporting foundation via a plurality of rear longitudinal steel cables (27), and the connection point between the rear longitudinal steel cables (27) and the supporting foundation is located behind the N1th arch truss.

2. The steel structure for coal storage shed according to claim 1 is characterized in that: The truss structure further comprises a pair of streamlined trusses (9) arranged behind the N1th arched truss, the pair of streamlined trusses (9) being symmetrically arranged about the left and right symmetric planes of the arched trusses, the top ends of the streamlined trusses (9) being welded to the N1th arched truss, and the bottom ends of the streamlined trusses (9) being arranged on a supporting foundation via the connection structure.

3. The steel structure for coal storage shed according to claim 2 is characterized in that: A lower reinforcing truss (16) and an upper reinforcing truss (18) are welded between the streamlined truss (9) and the N1th arched truss, and a connecting truss (17) is welded between the reinforcing truss (16) and the upper reinforcing truss (18).

4. The steel structure for coal storage shed according to claim 1 or 2, characterized in that: The connection structure is as follows: a seismic support (23) is provided at the connection between the truss structure and the supporting foundation; the seismic support (23) is fixedly connected to the embedded steel plate (20); and the embedded steel plate (20) is embedded in the supporting foundation.

5. The steel structure for coal storage shed according to claim 4 is characterized in that: The anti-seismic bearing (23) comprises an upper bearing plate (231), a stainless steel plate (232), a plane slide plate (233), a spherical lining plate (234), a spherical slide plate (235) and a lower bearing plate (236); the bottom of the upper bearing plate (231) is provided with a tapered groove with a lower opening, the opening of the tapered groove is a small diameter, and the top of the tapered groove is a large diameter; the upper bearing plate (231) and the lower bearing plate (236) are matched through a tapered surface; the spherical lining plate (234) is arranged between the upper bearing plate (231) and the lower bearing plate (236); the plane slide plate (233) is arranged at the top of the spherical lining plate (234) and the upper bearing plate (231) ), and the lower part of the plane slide plate (233) is embedded in the spherical lining plate (234); the stainless steel plate (232) is arranged between the top of the spherical lining plate (234) and the top of the conical groove of the upper support plate (231), surrounds the outer periphery of the plane slide plate (233), and is fixedly connected to the spherical lining plate (234); the spherical slide plate (235) is arranged between the spherical lining plate (234) and the lower support plate (236), and a part of the spherical slide plate (235) is embedded in the lower support plate (236); the material of the plane slide plate (233) and the spherical slide plate (235) is modified ultra-high molecular weight polyethylene.

6. The steel structure for coal storage shed according to claim 4 is characterized in that: The supporting foundation comprises a ring beam and a plurality of concrete columns (1) supporting the ring beam. The connection nodes J between the ring beam and the concrete columns (1) are integrally cast with concrete. The ring beam comprises a front ring beam portion (13), a rear ring beam portion (31), a left ring beam portion (4) and a right ring beam portion (30). The embedded steel plates (20) are all arranged at corresponding connection nodes J. Coal retaining walls or entrances and exits are arranged between adjacent concrete columns (1).

7. The steel structure for coal storage shed according to claim 4 is characterized in that: The front longitudinal steel cable and the rear longitudinal steel cable (27) are connected to the supporting foundation in the following manner: the lower ends of the front longitudinal steel cable and the rear longitudinal steel cable (27) are hinged to the ear plate A (25) through a cable joint A (24), and the ear plate A (25) is welded and fixed to the embedded steel plate (20); the inclined steel cable (7) is connected to the truss structure in the following manner: both ends of the inclined steel cable (7) are hinged to the ear plate B (34) through a cable joint B (33), and the ear plate B (34) is welded to the truss structure.

8. The steel structure for coal storage shed according to claim 1 is characterized in that: The arch truss and the longitudinal truss are formed by welding pipes.

9. The steel structure for coal storage shed according to claim 1 is characterized in that: The number N1 of the arch trusses is 6, and the number N2 of the longitudinal trusses is 3.

10. The steel structure for coal storage shed according to claim 1 is characterized in that: The left lower end and the right lower end of the first arch truss are connected via a front transverse steel lock (12), and the front longitudinal steel cable is divided into a front upper longitudinal steel cable (26) and a front lower longitudinal steel cable (11), and both the front upper longitudinal steel cable (26) and the front lower longitudinal steel cable (11) are connected to the front transverse steel lock (12).

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