Steel truss structure of stock bin

Abstract

The utility model relates to the technical field of steel structure buildings, and discloses a stock bin steel truss structure, which comprises a stock bin main body, a plurality of trusses, a plurality of steel beams and a plurality of steel beams, the hanging component comprises a hanging main body and a transverse supporting rod connected between the hanging main body and the stock bin main body; the hanging body comprises a bearing bottom frame and a hanging rod connected between the bearing bottom frame and the stock bin body, the bearing bottom frame comprises two longitudinal beams arranged at intervals and a plurality of cross beams connected between the two longitudinal beams, and at least one end of each cross beam is telescopically connected with the corresponding longitudinal beam through a telescopic sleeve rod. The steel truss structure can freely rotate through hinging to absorb deformation caused by displacement of a bottom support, and the design that the cross beams and the longitudinal beams of the hanging components are telescopically connected through the telescopic sleeve rods is adopted, so that node constraint can be released, structural displacement can be absorbed, and the problems that in the prior art, a storage bin truss structure cannot adapt to settlement and lateral displacement of a foundation, and the construction cost is low are effectively solved. And the potential safety hazard is high.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure buildings, in particular to a silo steel truss structure. Background Art

[0002] Large bulk cargo closed storage can prevent dust from spilling out, which meets the requirements of green and environmental protection. Large bulk cargo strip silos are the main type of bulk cargo storage. In large-span steel structure projects, some areas have poor geological conditions, deep miscellaneous fill and unfavorable soil layers, soft soil layers or liquefied soil layers, and poor stability. Special treatment of the foundation is required to meet the deformation and bearing capacity requirements of the upper steel structure, which greatly increases the project cost and will cause safety hazards to the upper steel structure due to uncontrollable settlement or lateral displacement of the foundation. The traditional steel truss structure constraint section is an over-static structure, and the structural section is a fixed rigid component that cannot adapt to the settlement and lateral displacement of the bottom support. Utility Model Content

[0003] In view of this, the utility model provides a silo steel truss structure to solve the problem in the prior art that the silo truss structure cannot adapt to the settlement and lateral displacement of the foundation and has high safety hazards.

[0004] The utility model provides a silo steel truss structure, comprising:

[0005] The silo body includes a plurality of trusses arranged in sequence along the length direction of the silo body, and each truss includes two truss beams hinged to each other at the upper ends;

[0006] A hanging component is arranged at the top of the silo body and is used to install the unloading device. The hanging component includes a hanging body and a transverse support rod fixedly connected between the hanging body and the silo body;

[0007] The hanging body includes a supporting frame and a hanging rod connected between the supporting frame and the silo body. The supporting frame includes two longitudinal beams arranged at intervals and a plurality of cross beams connected between the two longitudinal beams. At least one end of the cross beam is telescopically connected to the longitudinal beam by a telescopic sleeve rod.

[0008] Beneficial effect: The steel truss structure provided in the above embodiment is suitable for soft foundations, and its constraint section is a statically determinate structure, similar to two steel plates hingedly connected at the top by connecting parts such as pins. With such a design, when the support at the bottom of the steel truss structure settles and shifts sideways, the steel truss structure can rotate freely through the hinge to absorb the deformation caused by the displacement of the bottom support, allowing the foundation to settle and shift sideways. Therefore, the foundation does not need to be specially treated, and a low-cost independent foundation can be used. The foundation plan is simple, which can reduce construction costs and shorten the construction period. In addition, through the hanging component set on the top of the silo body, unloading devices such as hanging belt conveyors and unloaders can pass through for material transportation and unloading. Moreover, the design of the telescopic connection between the crossbeam and the longitudinal beam of the hanging component adopts a telescopic sleeve rod, which can release the node constraint, absorb the structural displacement, and avoid structural damage caused by rigid connection, effectively solving the problem that the silo truss structure in the prior art cannot adapt to the settlement and lateral displacement of the foundation and has high safety hazards.

[0009] In an optional embodiment, the longitudinal beam includes a first longitudinal beam and a second longitudinal beam which are spaced apart from each other, one end of the cross beam is fixedly connected to the first longitudinal beam, and the other end of the cross beam is telescopically connected to the second longitudinal beam via a telescopic sleeve rod.

[0010] Beneficial effect: A sliding node is formed between the other end of the crossbeam and the longitudinal beam, and a triangular stable structure is formed between the sliding node and the two side hangers, the transverse struts and the silo body. The stability is relatively high and will not shake at will. Only when the main structure of the silo is displaced or settled, the node between the crossbeam and the second longitudinal beam will slide horizontally, thereby absorbing the structural displacement, better adapting to the settlement and lateral displacement of the foundation, and effectively avoiding structural damage caused by rigid connection.

[0011] In an optional embodiment, the telescopic sleeve includes:

[0012] A telescopic rod, fixedly arranged on the crossbeam;

[0013] The outer sleeve is fixedly arranged on the second longitudinal beam, and the telescopic rod extends into the outer sleeve and can be telescopically moved in the outer sleeve.

[0014] Beneficial effect: the telescopic rod is extended into the outer sleeve, and the extension length of the telescopic rod is greater than the sliding amount of the crossbeam, and a sliding space is reserved between the outer sleeve and the crossbeam to release the displacement caused by structural deformation.

[0015] In an optional embodiment, a plastic bushing is fixedly sleeved on the outer periphery of the telescopic rod.

[0016] Beneficial effect: The plastic bushing provided on the outer periphery of the telescopic rod can effectively reduce the friction coefficient of the contact surface, thereby preventing the telescopic rod from being mechanically stuck with the outer sleeve during the telescopic process.

[0017] In an optional embodiment, the cross beam and the longitudinal beam are respectively H-shaped steel beams with webs;

[0018] The telescopic rod is welded and fixed on the web of the cross beam, and the outer sleeve is welded and fixed on the web of the second longitudinal beam;

[0019] A first reinforcing rib is arranged between the cross beam and the telescopic rod, and a second reinforcing rib is arranged between the second longitudinal beam and the outer sleeve.

[0020] Beneficial effect: The first reinforcing rib can effectively increase the structural strength of the telescopic rod, and the second reinforcing rib can effectively increase the structural strength of the outer sleeve.

[0021] In an optional embodiment, the truss beam includes a first truss beam and a second truss beam which are hinged to each other at the upper ends, a first ear plate is fixedly provided at the upper end of the first truss beam, a second ear plate is fixedly provided at the upper end of the second truss beam, the second ear plate includes two ear plates arranged at intervals, the first ear plate is inserted between the two second ear plates and connected by a pin shaft.

[0022] Beneficial effect: The two second ear plates arranged at intervals not only facilitate the pin connection, but also the two second ear plates are limited on both sides of the first ear plate to form a certain limit, thereby improving the stability between the first truss beam and the second truss beam.

[0023] In an optional embodiment, the truss beam includes two upper chords and one lower chord, the two upper chords are connected by a plurality of first web members, and the upper chord and the lower chord are connected by a plurality of second web members;

[0024] There are two groups of pins, and the two groups of pins are connected between the two upper chords of the first truss beam and the two upper chords of the second truss beam in a one-to-one correspondence.

[0025] Beneficial effect: By connecting the two upper chords of the two truss beams through two sets of pins, the connection between the two truss beams can be made more stable and reliable and not easy to loosen.

[0026] In an optional embodiment, first end plates are fixedly provided at the ends of the two upper chords of the first truss beam, respectively, and first ear plates are fixedly provided on the first end plates;

[0027] The ends of the two upper chords of the second truss beam are respectively fixedly provided with second end plates, and the second end plates are fixedly provided with second ear plates at intervals;

[0028] Pin holes are respectively provided on the first ear plate and the second ear plate, and fifth reinforcing ribs are respectively fixedly provided between the first ear plate and the first end plate, and between the second ear plate and the second end plate.

[0029] Beneficial effects: The first end plate and the second end plate are provided to facilitate the fixation of the first ear plate and the second ear plate, and the fifth reinforcing rib is provided to increase the structural strength of the first ear plate and the second ear plate, thereby ensuring the lateral stability of the ear plate.

[0030] In an optional embodiment, the bottoms of the first truss beam and the second truss beam are respectively hinged to the ground foundations located on both sides of the silo body through ball joint supports.

[0031] Beneficial effect: The first truss beam and the second truss beam are connected to the ground foundation through the ball joint support, and can be rotated 360 degrees in any direction.

[0032] In an optional embodiment, a cross rib is fixedly provided at the lower end of the lower chord, the bottom of the lower chord is flush with the bottom of the cross rib and is welded and fixed with a bottom plate, and the ball joint support includes a lower support and an upper top plate installed on the lower support;

[0033] A lining plate groove is provided on the surface of the lower support facing the upper top plate, and a flat PTFE slide plate, a spherical PTFE slide plate and a spherical PTFE slide plate are arranged in the lining plate groove from top to bottom, and the spherical PTFE slide plate is located between the lower support and the spherical PTFE slide plate;

[0034] The bottom plate is welded and fixed on the upper top plate, the ground foundation includes a concrete column and an embedded steel plate fixed above the concrete column, and the lower chord is welded and fixed on the embedded steel plate.

[0035] Beneficial effects: The cross ribs are arranged to facilitate the welding and fixing of the lower chord and the bottom plate. The flat PTFE slide plate and the spherical PTFE slide plate can reduce the friction of the contact surface, and the device has the properties of wear resistance, impact resistance, low temperature resistance and self-lubricating. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 This is a schematic diagram of the axial structure of the silo steel truss structure in the embodiment of the utility model;

[0038] Figure 2 for Figure 1 A top view of

[0039] Figure 3 This is a front view of the steel truss structure of the silo in the embodiment of the utility model;

[0040] Figure 4 This is a front view of the silo steel truss structure in the embodiment of the utility model when it is in working state;

[0041] Figure 5 This is an axonometric view of a portion of the silo steel truss structure in an embodiment of the utility model;

[0042] Figure 6 It is an enlarged view of the details of the connection between the cross beam and the longitudinal beam in the embodiment of the utility model;

[0043] Figure 7 for Figure 6 Schematic diagram of the structure from the middle AA perspective;

[0044] Figure 8 It is an enlarged view of the details of the connection between the first truss beam and the second truss beam in the embodiment of the utility model;

[0045] Fig. 9 for Figure 8 Schematic diagram of the structure from the perspective of the middle BB;

[0046] Fig.10 This is a structural schematic diagram of a first implementation of the pin shaft in the embodiment of the utility model;

[0047] Fig.11 This is a structural schematic diagram of a second implementation of the pin in the embodiment of the utility model;

[0048] Fig.12 It is an enlarged view of the connection between the lower chord rod, the ball joint support and the ground foundation in the embodiment of the utility model;

[0049] Fig.13 A cross-sectional view of a ball joint support in an embodiment of the utility model;

[0050] Fig.14 It is an enlarged view of the connection between the outer protection and the upper chord in the embodiment of the utility model.

[0051] Description of reference numerals:

[0052] 10. Silo body;

[0053] 11. Truss;

[0054] 111, first truss beam; 1111, first ear plate; 1112, first end plate; 1113, fifth reinforcing rib;

[0055] 112, second truss beam; 1121, second ear plate; 1122, second end plate;

[0056] 1101, upper chord; 1102, lower chord; 11021, cross rib; 11022, bottom plate; 11023, ring rib; 1103, first web member; 1104, second web member; 1105, pin; 11051, pin body; 11052, first cover plate; 11053, second cover plate;

[0057] 12. Cable;

[0058] 20. Hanging components;

[0059] 21. hanging body; 211. longitudinal beam; 2111. first longitudinal beam; 21111. connecting convex plate; 21112. fourth reinforcing rib; 2112. second longitudinal beam; 212. cross beam; 213. hanging rod;

[0060] 22. transverse support rod; 221. third reinforcing rib;

[0061] 23. telescopic sleeve; 231. telescopic rod; 2311. plastic bushing; 232. outer sleeve; 233. first reinforcing rib; 234. second reinforcing rib;

[0062] 30. Unloading device;

[0063] 40. Ball joint support; 41. Lower support; 42. Upper top plate; 43. Plane PTFE slide plate; 44. Ball crown lining plate; 45. Spherical PTFE slide plate; 46. Stainless steel plate;

[0064] 50. Ground foundation; 51. Concrete column; 52. Embedded steel plate;

[0065] 60. External protection; 61. Membrane material; 62. Rib plate;

[0066] 70. Gantry; 80. Coal storage line. DETAILED DESCRIPTION

[0067] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0068] In large-span steel structure projects, some areas have poor geological conditions, deep miscellaneous fill and unfavorable soil layers, soft soil layers or liquefied soil layers on the site, and poor stability. Special foundation treatment is required to meet the deformation and bearing capacity requirements of the upper steel structure, which greatly increases the project cost and poses a safety hazard to the upper steel structure due to uncontrollable settlement or lateral displacement of the foundation.

[0069] The constraint section of the traditional steel truss structure is an over-static structure. The structural section is a rigid plate, which is constrained by two hinged supports. Each longitudinal truss is connected by a number of connecting trusses and rigid tie rods. It has a large rigidity and cannot adapt to large support settlement and lateral displacement.

[0070] Combine the following Figures 1 to 14 , describing an embodiment of the utility model.

[0071] According to the embodiments of the utility model, on the one hand, the utility model provides a silo steel truss structure, including a silo main body 10 and a hanging component 20, the silo main body 10 includes a plurality of trusses 11 arranged in sequence along the length direction of the silo main body 10, each truss 11 includes two truss beams hinged to each other at the upper ends; the hanging component 20 is arranged at the top position inside the silo main body 10, for installing a unloading device 30, the hanging component 20 includes a hanging body 21 and a transverse support rod 22 fixedly connected between the hanging body 21 and the silo main body 10; the hanging body 21 includes a supporting base frame and a hanging rod 213 connected between the supporting base frame and the silo main body 10, the supporting base frame includes two longitudinal beams 211 arranged at intervals and a plurality of cross beams 212 connected between the two longitudinal beams 211, at least one end of the cross beam 212 is telescopically connected to the longitudinal beam 211 by a telescopic sleeve rod 23.

[0072] The steel truss structure provided in this embodiment is suitable for soft foundations, and its constraint section is a statically determinate structure, similar to the top of two steel plates being hingedly connected by connecting parts such as pins 1105. Such a design allows the steel truss structure to rotate freely through the hinge when the support at the bottom of the steel truss structure settles and moves sideways, absorbing the deformation caused by the displacement of the bottom support, allowing the foundation to settle and move sideways. Therefore, the foundation does not need to be specially treated, and a low-cost independent foundation can be used. The foundation scheme is simple, which can reduce construction costs and shorten the construction period. In addition, the hanging member 20 set on the top of the silo body 10 can be used for hanging belt conveyors and unloading machines and other unloading devices 30 for material transportation and unloading. Moreover, the cross beam 212 and the longitudinal beam 211 of the hanging member 20 are designed to be telescopically connected by using a telescopic sleeve rod 23, which can release the node constraint, absorb the structural displacement, and avoid structural damage caused by rigid connection, effectively solving the problem that the silo truss 11 structure in the prior art cannot adapt to the settlement and displacement of the foundation, and has a high safety hazard.

[0073] In the above embodiment, the longitudinal beam 211 is extended along the length direction of the silo body 10, and the length of the longitudinal beam 211 matches the length of the silo body 10. The suspension rods 213 and the transverse struts 22 each have multiple groups, and the number of groups of the suspension rods 213 and the transverse struts 22 are consistent with the number of trusses 11. Each group of suspension rods 213 includes multiple suspension rods 213, and the multiple suspension rods 213 are evenly distributed on both sides of the supporting frame and are respectively connected to the two truss beams on both sides. Each group of transverse struts 22 includes two transverse struts 22, and the two transverse struts 22 are correspondingly connected to the two sides of the supporting frame and between the two truss beams. Preferably, the transverse struts 22 are arranged horizontally.

[0074] In some embodiments, two adjacent trusses 11 are flexibly connected via cables 12, which can further adapt to support settlement and lateral displacement.

[0075] In some embodiments, the outer enclosure 60 of the silo body 10 is closed with a membrane material 61 without connecting purlins, and the membrane material 61 can adapt to the deformation of the steel structure.

[0076] In some more specific embodiments, the longitudinal beam 211 includes a first longitudinal beam 2111 and a second longitudinal beam 2112 that are spaced apart. One end of the cross beam 212 is fixedly connected to the first longitudinal beam 2111 , and the other end is telescopically connected to the second longitudinal beam 2112 via a telescopic sleeve rod 23 .

[0077] In the above embodiment, a sliding node is formed between the cross beam 212 and the second longitudinal beam 2112, and a triangular stable structure is formed between the sliding node and the two side suspension rods 213, the transverse support rods 22 and the silo body 10. The stability is relatively high and will not shake at will. Only when the structure of the silo body 10 is displaced or settled, the node between the cross beam 212 and the second longitudinal beam 2112 will slide horizontally, thereby absorbing the structural displacement, better adapting to the settlement and lateral displacement of the foundation, and effectively avoiding structural damage caused by rigid connection.

[0078] Furthermore, the telescopic sleeve 23 includes a telescopic rod 231 and an outer sleeve 232 . The telescopic rod 231 is fixedly disposed on the cross beam 212 , and the outer sleeve 232 is fixedly disposed on the second longitudinal beam 2112 . The telescopic rod 231 extends into the outer sleeve 232 and can be telescopically moved in the outer sleeve 232 .

[0079] In the above embodiment, the telescopic rod 231 extends into the outer sleeve 232, and the extension length of the telescopic rod 231 is greater than the sliding amount of the beam 212, and a sliding space is reserved between the outer sleeve 232 and the beam 212 to release the displacement caused by structural deformation.

[0080] Specifically, the telescopic rod 231 is a steel pipe, and the outer sleeve 232 is a steel sleeve. Both the telescopic rod 231 and the outer sleeve 232 are steel components, which have higher structural strength, stronger bearing capacity and stronger deformation resistance.

[0081] In some embodiments, a plastic bushing 2311 is fixedly mounted on the outer periphery of the telescopic rod 231 .

[0082] In the above embodiment, the plastic bushing 2311 provided on the outer periphery of the telescopic rod 231 can effectively reduce the friction coefficient of the contact surface, thereby preventing the telescopic rod 231 from being mechanically stuck with the outer sleeve 232 during the telescopic process.

[0083] Specifically, the portion of the telescopic rod 231 extending out of the cross beam 212 is provided with a plastic bushing 2311 , and the plastic bushing 2311 is a polytetrafluoroethylene plate wrapped around the extending portion of the telescopic rod 231 .

[0084] Preferably, the thickness of the plastic bushing 2311 is 10 mm.

[0085] In some embodiments, the cross beam 212 and the longitudinal beam 211 are respectively H-shaped steel beams with webs; the telescopic rod 231 is welded and fixed to the web of the cross beam 212, and the outer sleeve 232 is welded and fixed to the web of the second longitudinal beam 2112; a first reinforcing rib 233 is arranged between the cross beam 212 and the telescopic rod 231, and a second reinforcing rib 234 is arranged between the second longitudinal beam 2112 and the outer sleeve 232.

[0086] In the above embodiment, the first reinforcing rib 233 can effectively increase the structural strength of the telescopic rod 231 , and the second reinforcing rib 234 can effectively increase the structural strength of the outer sleeve 232 .

[0087] Specifically, the telescopic rod 231 is a steel pipe connected to the cross beam 212. The telescopic rod 231 is inserted into the web of the cross beam 212 for a certain length, and the inserted part is welded to the web of the cross beam 212. A first reinforcing rib 233 is provided at the insertion end of the telescopic rod 231, and the end of the telescopic rod 231 is welded to the first reinforcing rib 233. The first reinforcing rib 233 is provided on the left and right sides of the web of the cross beam 212, and is two symmetrical ribs, and three sides of each side are welded to the upper flange, lower flange and web of the cross beam 212, so as to ensure the stability of the upper flange and lower flange of the cross beam 212 and the strength of the connection of the telescopic rod 231.

[0088] Furthermore, the cross beam 212 and the longitudinal beam 211 respectively include an upper flange, a lower flange and a web fixed between the upper flange and the lower flange, and the second reinforcing rib 234 is welded to the upper flange, the lower flange and the web of the second longitudinal beam 2112 to improve the stability between the upper flange and the lower flange of the second longitudinal beam 2112.

[0089] Furthermore, the end of the transverse strut 22 is welded to the web of the second longitudinal beam 2112, and the transverse strut 22 and the outer sleeve 232 are respectively fixed on the left and right sides of the web. A third reinforcing rib 221 is also provided between the upper flange, the lower flange of the second longitudinal beam 2112 and the transverse strut 22, and the end of the transverse strut 22 is inserted into the third reinforcing rib 221, and the two are welded and fixed, thereby strengthening the strength and rigidity of the end of the transverse strut 22 on the side of the second longitudinal beam 2112.

[0090] Furthermore, a connecting convex plate 21111 is fixedly provided at the end of the first longitudinal beam 2111. Specifically, one end of the connecting convex plate 21111 is closely attached to the upper flange, lower flange and web of the first longitudinal beam 2111 and is fixed by welding, and the other end is extended, and the extended portion is welded and connected to the web of the cross beam 212. The width of the extended portion is smaller than the height of the web of the cross beam 212, leaving a welding space between the connecting convex plate 21111 and the web of the cross beam 212. The transverse brace 22 is fixedly connected to the outer wall of the web of the first longitudinal beam 2111. A fourth reinforcing rib 21112 is provided between the transverse brace 22 and the upper flange and lower flange of the first longitudinal beam 2111, which is used to increase the structural strength of the transverse brace 22 on the side of the first longitudinal beam 2111.

[0091] In some embodiments, the truss beam includes a first truss beam 111 and a second truss beam 112 which are hinged to each other at the upper ends. A first ear plate 1111 is fixedly provided at the upper end of the first truss beam 111, and a second ear plate 1121 is fixedly provided at the upper end of the second truss beam 112. The second ear plate 1121 includes two ear plates arranged at intervals. The first ear plate 1111 is inserted between the two second ear plates 1121 and connected through a pin shaft 1105.

[0092] In the above embodiment, the two second ear plates 1121 arranged at intervals not only facilitate the connection of the pin shaft 1105, but also the two second ear plates 1121 are limited on both sides of the first ear plate 1111, which can form a certain limit and improve the stability between the first truss beam 111 and the second truss beam 112.

[0093] Furthermore, in some embodiments, the truss beam includes two upper chords 1101 and one lower chord 1102, the two upper chords 1101 are connected by a plurality of first web members 1103, and the upper chord 1101 and the lower chord 1102 are connected by a plurality of second web members 1104; there are two groups of pins 1105, and the two groups of pins 1105 are connected one by one between the two upper chords 1101 of the first truss beam 111 and the two upper chords 1101 of the second truss beam 112.

[0094] In the above embodiment, two sets of pins 1105 are used to connect the two upper chords 1101 of the two truss beams, so that the connection between the two truss beams can be more stable and reliable and not easy to loosen.

[0095] Specifically, the two groups of pin shafts 1105 are located on the same horizontal axis, and the first truss beam 111 and the second truss beam 112 can rotate relative to the horizontal axis.

[0096] Furthermore, in some embodiments, the ends of the two upper chords 1101 of the first truss beam 111 are respectively fixed with first end plates 1112, and the first end plate 1112 is fixed with a first ear plate 1111; the ends of the two upper chords 1101 of the second truss beam 112 are respectively fixed with second end plates 1122, and the second ear plates 1121 are fixedly arranged on the second end plate 1122 at intervals; the first ear plate 1111 and the second ear plate 1121 are respectively provided with pin holes, and a fifth reinforcing rib 1113 is fixedly arranged between the first ear plate 1111 and the first end plate 1112, and between the second ear plate 1121 and the second end plate 1122.

[0097] In the above embodiment, the first end plate 1112 and the second end plate 1122 are provided to facilitate the fixation of the first ear plate 1111 and the second ear plate 1121, and the fifth reinforcing rib 1113 is provided to increase the structural strength of the first ear plate 1111 and the second ear plate 1121 to ensure the lateral stability of the ear plates.

[0098] Specifically, in this embodiment, the top of the truss 11 adopts a pin 1105 hinge node to release the settlement deformation caused by the weak foundation. Preferably, in order to improve the strength and rigidity of the node, in this embodiment, the end of the upper chord 1101 is thickened by a reducer, and the thickened upper chord 1101 is welded with a first end plate 1112 or a second end plate 1122, and a first ear plate 1111 is welded on the first end plate 1112 of the upper chord 1101 of the first truss beam 111 Two second ear plates 1121 are welded on the second end plate 1122 of the upper chord 1101 of the second truss beam 112. The static distance between the two second ear plates 1121 is 2 to 5 mm larger than the thickness of the first ear plate 1111, so that the first ear plate 1111 is conveniently inserted and clamped between the two second ear plates 1121. The first ear plate 1111 is connected through a hole of a pin 1105. The diameter of the pin 1105 is calculated according to the shear force received. The two ends of the pin 1105 are connected by a cover plate to prevent the pin 1105 from falling out.

[0099] Preferably, in order to ensure the lateral stability of the ear plate, two ribs are added to the outer side of the ear plate and welded to the ear plate and the end plate. The fifth reinforcing rib 1113 has two pieces, which are fixedly arranged on the two outer side walls of the two first ear plates 1111. The edges of the fifth reinforcing rib 1113 are respectively provided with avoidance grooves corresponding to the two second ear plates 1121, so that the first ear plate 1111 can be inserted between the two second ear plates 1121.

[0100] Furthermore, in this embodiment, there are two ways to connect the first ear plate 1111 and the second ear plate 1121: Fig.10 As shown, the first method is that one end of the pin body 11051 is provided with a first cover plate 11052 that is processed as a whole, and the other end is provided with a second cover plate 11053. The second cover plate 11053 is a circular plate. The outer diameter and thickness of the second cover plate 11053 are the same as the diameter of the first cover plate 11052. The inner diameter of the second cover plate 11053 is 2mm larger than the diameter of the pin 1105. After the pin 1105 passes through the ear plate, the second cover plate 11053 is then passed on the other end of the pin body 11051, and after being close to the second ear plate 1121, it is welded and fixed to the pin body 11051 around the outer side. Fig.11 As shown, the second method is that a first cover plate 11052 is integrally machined at one end of the pin shaft body 11051, and a thread is machined at the other end of the pin shaft 1105, the length of the thread must be greater than the length of the pin shaft 1105 exposed through the ear plate, the second cover plate 11053 is a circular plate, and the inner hole is a threaded hole. The second cover plate 11053 can be regarded as a nut. After the pin shaft body 11051 passes through the ear plate, the second cover plate 11053 is tightened and fixed on the pin shaft 1105 to prevent the pin shaft 1105 from falling out.

[0101] In some embodiments, the bottoms of the first truss beam 111 and the second truss beam 112 are respectively hinged to the ground foundation 50 located on both sides of the silo body 10 through ball joint supports 40.

[0102] In the above embodiment, the first truss beam 111 and the second truss beam 112 are connected to the ground foundation 50 through the ball joint support 40, and 360° rotation in any direction can be achieved.

[0103] Specifically, in some embodiments, in combination Figure 5 , Fig.12 , Fig.13 As shown, a cross rib 11021 is fixedly provided at the lower end of the lower chord 1102, the bottom of the lower chord 1102 is flush with the bottom of the cross rib 11021 and is welded and fixed with a bottom plate 11022, the ball joint support 40 includes a lower support 41 and an upper top plate 42 installed on the lower support 41; a lining plate groove is opened on the surface of the lower support 41 facing the upper top plate 42, and a flat polytetrafluoroethylene slide plate 43, a spherical crown lining plate 44 and a spherical polytetrafluoroethylene slide plate 45 are arranged in the lining plate groove from top to bottom, and the spherical polytetrafluoroethylene slide plate 45 is located between the lower support 41 and the spherical crown lining plate 44; the bottom plate 11022 is welded and fixed on the upper top plate 42, the ground foundation 50 includes a concrete column 51 and an embedded steel plate 52 fixedly arranged above the concrete column 51, and the ball joint support 40 is welded and fixed on the embedded steel plate 52.

[0104] In the above embodiment, the cross rib 11021 is provided to facilitate the welding and fixing of the lower chord 1102 and the bottom plate 11022. The planar Teflon slide plate 43 and the spherical Teflon slide plate 45 are provided to reduce the friction of the contact surface, and the device has the properties of wear resistance, impact resistance, low temperature resistance and self-lubricating.

[0105] Specifically, in order to improve the node strength and rigidity at the ball joint bearing 40, the lower chord 1102 near one end of the ball joint bearing 40 is thickened by a reducer, and an annular rib 11023 is arranged in the pipe at the reducer and welded to the inner wall of the pipe to improve the strength and rigidity of the node. The bottom of the thickened lower chord 1102 is inserted into a cross rib 11021, and the bottom is flush. The length of the cross rib 11021 is consistent with the diameter of the bottom plate 11022, and the diameter of the bottom plate 11022 is larger than the diameter of the thickened lower chord 1102. The cross rib 11021 is welded to the lower chord 1102, and then the bottom of the lower chord 1102 and the bottom of the cross rib 11021 are welded to the bottom plate 11022. The cross rib 11021 is used to improve the strength and rigidity of the lower chord 1102 at the ball joint bearing 40.

[0106] Preferably, the lower chord 1102 of the truss beam includes a main section, a diameter-reducing section and an expanded section arranged in sequence from top to bottom, and a cross rib plate 11021 is fixedly arranged at the lower end of the expanded section and connected to the ball joint support 40. Annular ribs 11023 are respectively arranged at the connection position between the main section and the diameter-reducing section, and at the connection position between the diameter-reducing section and the expanded section to ensure the local stability of the node.

[0107] Preferably, the ball joint support 40 further includes a stainless steel plate 46 disposed between the upper top plate 42 and the flat polytetrafluoroethylene sliding plate 43 , and the wear resistance can be enhanced by the provision of the stainless steel plate 46 .

[0108] Furthermore, the upper heating chord 1101 on the outer side of the bottom of the truss 11 is welded to the thickened lower chord 1102, the intersection of the upper chord 1101 and the lower chord 1102 is inside the lower chord 1102 and the ring rib 11023 is welded, and finally the bottom plate 11022 is welded to the top plate of the finished ball joint support 40; the finished ball joint support 40 is welded to the embedded steel plate 52 on the top of the concrete column 51, and the upper top plate 42 of the finished ball joint support 40 can rotate 360 ​​degrees in any direction. The ball joint support 40 mainly includes an upper top plate 42, a stainless steel plate 46, a flat PTFE slide plate 43, a ball crown lining plate 44, a spherical PTFE slide plate 45 and a lower support 41. The stainless steel plate 46 is used to enhance wear resistance. The PTFE plate adopts PTFE-modified ultra-high analytical polyethylene, which has wear resistance, impact resistance, low temperature resistance and self-lubricating properties. The upper top plate 42 can achieve 360 ​​degrees of free rotation through the ball crown lining plate 44.

[0109] In some embodiments, the silo steel truss structure further includes an outer enclosure 60 disposed on the outer periphery or inner periphery of the silo body 10 . The outer enclosure 60 is closed with a membrane material 61 , and there is no need to connect purlins. The membrane material 61 can adapt to the deformation of the steel structure.

[0110] Optionally, the membrane material 61 is usually made of PTFE membrane material or PVC membrane material. The membrane material 61 is a flexible material that can adapt to large deformations of the structure. According to the enclosure requirements, the membrane material 61 can be placed externally or internally on the steel structure. The membrane material 61 is placed externally on the surface of the steel structure for sealing, and stiffening plates 62 are evenly spaced on the upper chord 1101 of the steel truss structure. The membrane material 61 is laid on top of the steel truss 11, and the membrane material 61 is tensioned on each stiffening plate 62 and connected with stainless steel bolts. A waterproof membrane is laid at the joints, and the waterproof membrane can be heat-sealed with the roofing membrane material 61 of the silo body 10.

[0111] Optionally, the silo steel truss structure further includes a door frame 70 and a coal storage line 80 disposed in the silo body 10 .

[0112] The silo steel truss structure provided in this embodiment has the following advantages:

[0113] (1) The restrained section of the steel truss structure is a statically determinate structure. The structural section is composed of two steel plates hingedly connected by a pin 1105, so that when the support sinks and moves sideways, the structure can rotate freely through the pin 1105 to absorb the deformation caused by the displacement of the bottom support.

[0114] (2) The foundation is allowed to settle and shift laterally, so no special treatment is required for the foundation, and a low-cost independent foundation can be used as the foundation solution.

[0115] (3) Two longitudinally adjacent trusses 11 are flexibly connected by cables 12 to adapt to the settlement and lateral displacement of the longitudinal support.

[0116] (4) A hanging belt conveyor and a discharger channel can be set on the top for material transportation and unloading. The hanging component 20 is released through node constraints to absorb structural displacement.

[0117] (5) The outer enclosure 60 is enclosed by a membrane material 61, and there is no need to connect purlins. The membrane material 61 can adapt to the deformation of the steel structure.

[0118] (6) The steel truss structure is easy to install and has a simple foundation plan, which can reduce construction costs and shorten the construction period.

[0119] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A silo steel truss structure, characterized in that: include: The silo body (10) comprises a plurality of trusses (11) arranged in sequence along the length direction of the silo body (10), and each truss (11) comprises two truss beams whose upper ends are hinged to each other; a hanging component (20) disposed at the top of the silo body (10) and used for installing a discharge device (30); the hanging component (20) comprises a hanging body (21) and a transverse support rod (22) fixedly connected between the hanging body (21) and the silo body (10); The hanging body (21) comprises a supporting base frame and a hanging rod (213) connected between the supporting base frame and the silo body (10); the supporting base frame comprises two longitudinal beams (211) arranged at intervals and a plurality of cross beams (212) connected between the two longitudinal beams (211); at least one end of the cross beam (212) is telescopically connected to the longitudinal beam (211) by a telescopic sleeve rod (23).

2. The silo steel truss structure according to claim 1 is characterized in that: The longitudinal beam (211) comprises a first longitudinal beam (2111) and a second longitudinal beam (2112) which are arranged at intervals; one end of the cross beam (212) is fixedly connected to the first longitudinal beam (2111), and the other end is telescopically connected to the second longitudinal beam (2112) via a telescopic sleeve rod (23).

3. The silo steel truss structure according to claim 2 is characterized in that: The telescopic sleeve rod (23) comprises: A telescopic rod (231) fixedly arranged on the crossbeam (212); The outer sleeve (232) is fixedly arranged on the second longitudinal beam (2112), and the telescopic rod (231) extends into the outer sleeve (232) and can be telescopically moved in the outer sleeve (232).

4. The silo steel truss structure according to claim 3 is characterized in that: A plastic bushing (2311) is sleeved and fixed on the outer periphery of the telescopic rod (231).

5. The silo steel truss structure according to claim 3 or 4, characterized in that: The cross beam (212) and the longitudinal beam (211) are respectively H-shaped steel beams with webs; The telescopic rod (231) is welded and fixed to the web of the crossbeam (212), and the outer sleeve (232) is welded and fixed to the web of the second longitudinal beam (2112); A first reinforcing rib (233) is provided between the cross beam (212) and the telescopic rod (231), and a second reinforcing rib (234) is provided between the second longitudinal beam (2112) and the outer sleeve (232).

6. The silo steel truss structure according to any one of claims 1 to 4, characterized in that: The truss beam comprises a first truss beam (111) and a second truss beam (112) whose upper ends are hinged to each other, a first ear plate (1111) is fixedly provided at the upper end of the first truss beam (111), a second ear plate (1121) is fixedly provided at the upper end of the second truss beam (112), the second ear plates (1121) include two ear plates (1121) arranged at intervals, the first ear plate (1111) is inserted between the two second ear plates (1121) and connected via a pin shaft (1105).

7. The silo steel truss structure according to claim 6, characterized in that: The truss beam comprises two upper chords (1101) and one lower chord (1102), the two upper chords (1101) are connected via a plurality of first web members (1103), and the upper chord (1101) and the lower chord (1102) are connected via a plurality of second web members (1104); The pins (1105) are provided in two groups, and the two groups of pins (1105) are connected between the two upper chords (1101) of the first truss beam (111) and the two upper chords (1101) of the second truss beam (112) in a one-to-one correspondence.

8. The silo steel truss structure according to claim 7, characterized in that: The ends of the two upper chords (1101) of the first truss beam (111) are respectively fixedly provided with first end plates (1112), and the first end plates (1112) are fixedly provided with the first ear plates (1111); The ends of the two upper chords (1101) of the second truss beam (112) are respectively fixedly provided with second end plates (1122), and the second ear plates (1121) are fixedly provided on the second end plates (1122) at intervals; The first ear plate (1111) and the second ear plate (1121) are respectively provided with pin holes, and a fifth reinforcing rib (1113) is respectively fixedly provided between the first ear plate (1111) and the first end plate (1112), and between the second ear plate (1121) and the second end plate (1122).

9. The silo steel truss structure according to claim 7, characterized in that: The bottoms of the first truss beam (111) and the second truss beam (112) are respectively hinged to the ground foundations (50) located on both sides of the silo body (10) through ball joint supports (40).

10. The silo steel truss structure according to claim 9, characterized in that: A cross rib (11021) is fixedly provided at the lower end of the lower chord (1102), the bottom of the lower chord (1102) is flush with the bottom of the cross rib (11021) and is welded and fixed with a bottom plate (11022), and the ball joint support (40) comprises a lower support (41) and an upper top plate (42) mounted on the lower support (41); A lining plate groove is provided on the surface of the lower support (41) facing the upper top plate (42), and a flat polytetrafluoroethylene plate (43), a spherical polytetrafluoroethylene plate (44) and a spherical polytetrafluoroethylene plate (45) are arranged in the lining plate groove in order from top to bottom, and the spherical polytetrafluoroethylene plate (45) is located between the lower support (41) and the spherical polytetrafluoroethylene plate (44); The bottom plate (11022) is welded and fixed on the upper top plate (42); the ground foundation (50) includes a concrete column (51) and an embedded steel plate (52) fixedly arranged above the concrete column (51); and the lower chord (1102) is welded and fixed on the embedded steel plate (52).

Images