A steel structure roof truss sliding connection structure and industrial plant

Abstract

The invention discloses a steel structure roof truss sliding connection structure and an industrial plant. In a spatial rectangular coordinate system with X, Y and Z axes as coordinate axes, the steel structure roof truss sliding connection structure comprises a steel roof truss support (4), a wear-resistant lubricating plate (8), a lubricating plate limiting frame (6) and a cantilevered corbel (3) arranged in sequence along the Z axis direction. The upper surface of the wear-resistant lubricating plate (8) is parallel to the plane where the X axis and the Y axis are located. The wear-resistant lubricating plate (8), the lubricating plate limiting frame (6) and the cantilevered corbel (3) are relatively fixed. The steel structure roof truss support (4) can move along the X axis direction and the Y axis direction on the wear-resistant lubricating plate (8). The steel structure roof truss sliding connection structure simultaneously realizes the requirements of transverse (span direction) and longitudinal (length direction) expansion joints through sliding connections between steel structures, and ensures the overall safety and stability of the plant.

Description

Technical Field

[0001] The invention relates to the field of steel structure buildings, in particular to a steel structure roof truss sliding connection structure, and also to an industrial plant containing the steel structure roof truss sliding connection structure. Background Art

[0002] In the current single-story industrial steel structure plant design and implementation projects, when considering the impact of temperature changes, the plant temperature section length needs to meet the steel structure design standard requirements. When the horizontal or vertical length of the plant exceeds the temperature section value required by the design standard, it is necessary to set a horizontal or vertical expansion joint. According to the design characteristics of industrial plants, expansion joints are generally realized through steel structure roof truss connections.

[0003] At present, the expansion joint form of steel structure factory roof trusses adopted by the design institute is only realized by considering the transverse (span direction) deformation of the factory building. When it is necessary to set both transverse (span direction) and longitudinal (length direction) expansion joints due to the influence of process design and site characteristics, there is no suitable roof truss connection form to meet the design requirements.

[0004] For example, in the prior art, the node plate at the end of the roof truss is vertically fixed to the steel structure factory column and disconnected horizontally. The deformation of the node plate is used to release the deformation between the roof truss and the column, thereby ensuring the transmission of vertical loads and serving as a temperature deformation expansion joint of the factory.

[0005] The existing technology can play the role of factory expansion joints, but according to its node connection method, this roof truss sliding connection form can only ensure the deformation release of the factory along the span direction. When bidirectional deformation release is performed according to the actual situation of the factory, and it serves as a horizontal (span direction) and longitudinal (length direction) expansion joint at the same time, this roof truss sliding connection form cannot meet its requirements. Summary of the invention

[0006] In order to enable the steel structure roof truss to simultaneously meet the requirements of lateral and longitudinal expansion and contraction movement, the present invention provides a steel structure roof truss sliding connection structure and an industrial plant. The steel structure roof truss sliding connection structure simultaneously realizes the requirements of lateral (span direction) and longitudinal (length direction) expansion joints through sliding connections between steel structures, and ensures the overall safety and stability of the plant.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a steel structure roof truss sliding connection structure, in a spatial rectangular coordinate system with X, Y and Z axes as coordinate axes, the steel structure roof truss sliding connection structure includes a steel roof truss support, a wear-resistant lubrication plate, a lubrication plate limit frame and a cantilevered corbel arranged in sequence along the Z-axis direction, the upper surface of the wear-resistant lubrication plate is parallel to the plane where the X-axis and the Y-axis are located, the wear-resistant lubrication plate, the lubrication plate limit frame and the cantilevered corbel are relatively fixed, and the steel roof truss support can move on the wear-resistant lubrication plate along the X-axis direction and the Y-axis direction.

[0008] The lubrication plate limit frame comprises a limit base plate and an inner limit frame, the lower end of the inner limit frame is connected to the limit base plate, the wear-resistant lubrication plate is matched and arranged in the inner limit frame, and the wear-resistant lubrication plate, the limit base plate and the cantilevered corbel are stacked in sequence from top to bottom.

[0009] The inner limit frame is a rectangular structure, and a first positioning lower upright plate and a second positioning lower upright plate are fixed outside the inner limit frame. The first positioning lower upright plate is parallel to the plane where the X-axis and the Z-axis are located, and the second positioning lower upright plate is parallel to the plane where the Y-axis and the Z-axis are located. The upper end of the inner limit frame is connected to the upper limit horizontal plate.

[0010] The steel roof truss support is connected with a first positioning upper vertical plate and a second positioning upper vertical plate, the first positioning upper vertical plate is parallel to the plane where the X-axis and the Z-axis are located, the second positioning upper vertical plate is parallel to the plane where the Y-axis and the Z-axis are located, the first positioning upper vertical plate is detachably connected to the first positioning lower vertical plate, and the second positioning upper vertical plate is detachably connected to the second positioning lower vertical plate.

[0011] The steel roof truss support includes a support lower bottom plate, a support upper bottom plate, a support transverse plate and a support longitudinal plate. The support lower bottom plate and the support upper bottom plate are parallel to the plane where the X-axis and the Y-axis are located, the support transverse plate is parallel to the plane where the X-axis and the Z-axis are located, the support longitudinal plate is parallel to the plane where the Y-axis and the Z-axis are located, and the middle part of the support transverse plate intersects with the middle part of the support longitudinal plate.

[0012] The support transverse plate is connected to the first positioning upper plate, the support longitudinal plate is connected to the second positioning upper plate, the outer end of the support transverse plate is connected to the outer end of the support longitudinal plate through an arc-shaped dustproof steel plate, the upper end of the arc-shaped dustproof steel plate is connected to the lower surface of the support upper base plate, and the lower end of the arc-shaped dustproof steel plate contacts the upper surface of the upper limit transverse plate.

[0013] The outer sleeve of the lubrication plate limit frame is provided with a canvas dust cover, which is in a cylindrical structure. The upper end of the canvas dust cover is fixedly sleeved outside the arc-shaped dustproof steel plate through a stainless steel hoop, and the lower end of the canvas dust cover is fastened and fixed.

[0014] A stainless steel plate is provided between the steel roof truss support and the wear-resistant lubricating plate. The wear-resistant lubricating plate and the stainless steel plate are stacked and arranged. The stainless steel plate is connected and fixed to the steel roof truss support. The wear-resistant lubricating plate is an ultra-high molecular weight polyethylene plate. The upper surface of the wear-resistant lubricating plate is provided with circular grooves arranged in regular rows and columns.

[0015] An industrial plant comprises plant steel columns, a steel roof truss and the above-mentioned steel structure roof truss sliding connection structure, one end of the cantilevered corbel is located in the plant steel column, and the steel roof truss is connected and fixed to a steel roof truss support.

[0016] The steel roof truss is connected with a pointer, which includes a vertical pole section, a horizontal pole section and an upright pointed section connected in sequence. A scale table is provided on the lower surface of the cantilevered corbel. The scale lines in the scale table are parallel to the X-axis and the Y-axis respectively. The upper end of the pointed section is located directly below the zero point position of the scale table.

[0017] The beneficial effects of the present invention are as follows: the steel structure roof truss sliding connection structure expands the setting form of expansion joints in industrial plants, and satisfies the requirements of expansion deformation in the horizontal direction (span direction) and the longitudinal direction (length direction) through one node, thereby reducing the complexity of construction and expanding the possibility of implementing plant process design, thereby ensuring the safety and stability of the plant, further saving investment and bringing better economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] Figure 1 It is a front view of the sliding connection structure of the steel structure roof truss of the present invention.

[0020] Figure 2 yes Figure 1 An enlarged schematic diagram of the support area of ​​the steel roof truss.

[0021] Figure 3 yes Figure 2 Cross-sectional view along AA direction.

[0022] Figure 4 yes Figure 2 Cross-sectional view along direction BB.

[0023] Figure 5 yes Figure 2 Cross-sectional view along CC direction.

[0024] Figure 6 yes Figure 2 Cross-sectional view along DD direction.

[0025] Figure 7 yes Figure 2Cross-sectional view along EE direction.

[0026] Figure 8 yes Figure 6 Cross-sectional view along the FF direction.

[0027] Fig. 9 yes Figure 1 An enlarged schematic diagram of the middle cantilever corbel area.

[0028] Fig.10 yes Fig. 9 Cross-sectional view of the middle cantilever corbel along the GG direction.

[0029] Fig.11 yes Fig. 9 Sectional view of the middle cantilever corbel along the HH direction.

[0030] 1. Steel columns of the factory building; 2. Steel roof trusses; 3. Cantilevered corbels; 4. Steel roof truss supports; 5. Canvas dust cover; 6. Lubricating plate limit frame; 7. Stainless steel hoop; 8. Wear-resistant lubricating plate; 9. Stainless steel plate;

[0031] 21. Pointer; 22. Vertical pole section; 23. Horizontal pole section; 24. Pointed head section;

[0032] 31. Scale table;

[0033] 41. Support lower bottom plate; 42. Support upper bottom plate; 43. Support horizontal plate; 44. Support vertical plate; 45. Curved dustproof steel plate;

[0034] 61. Limiting bottom plate; 62. Inner limiting frame; 63. Outer limiting frame; 64. First positioning lower vertical plate; 65. Second positioning lower vertical plate; 66. Upper positioning horizontal plate; 67. First positioning upper vertical plate; 68. Second positioning upper vertical plate. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] A steel structure roof truss sliding connection structure, in a spatial rectangular coordinate system with X, Y, and Z axes as coordinate axes, the steel structure roof truss sliding connection structure includes a steel roof truss support 4, a wear-resistant lubricating plate 8, a lubricating plate limit frame 6, and a cantilevered corbel 3 connected in sequence along the Z axis direction, the upper surface of the wear-resistant lubricating plate 8 is parallel to the plane where the X axis and the Y axis are located, the wear-resistant lubricating plate 8, the lubricating plate limit frame 6, and the cantilevered corbel 3 are relatively fixed, and the steel roof truss support 4 can move on the wear-resistant lubricating plate 8 along the X axis direction (transverse) and the Y axis direction (longitudinal), such as Figures 1 to 7 shown.

[0037] In this embodiment, the lubrication plate limit frame 6 includes a limit base plate 61, an inner limit frame 62 and an outer limit frame 63. The wear-resistant lubrication plate 8 and the limit base plate 61 are stacked up and down. The limit base plate 61 is parallel to the plane where the X-axis and the Y-axis are located. The inner limit frame 62 is sleeved in the outer limit frame 63. The lower end of the inner limit frame 62 and the lower end of the outer limit frame 63 are both connected and fixed to the upper surface of the limit base plate 61. The wear-resistant lubrication plate 8 is matched and arranged in the inner limit frame 62. The wear-resistant lubrication plate 8, the limit base plate 61 and the cantilevered corbel 3 are stacked in sequence from top to bottom.

[0038] In this embodiment, the inner limit frame 62 and the outer limit frame 63 are both rectangular frame structures, and a first positioning lower vertical plate 64 and a second positioning lower vertical plate 65 are fixed between the inner limit frame 62 and the outer limit frame 63. The first positioning lower vertical plate 64 is parallel to the plane where the X axis and the Z axis are located, and the second positioning lower vertical plate 65 is parallel to the plane where the Y axis and the Z axis are located. The upper end of the inner limit frame 62 is connected to an upper limit horizontal plate 66. The projection area of ​​the lower end of the steel roof truss support 4 on the plane where the X axis and the Y axis are located is smaller than the projection area of ​​the wear-resistant lubricating plate 8 on the plane where the X axis and the Y axis are located, as shown in FIG. Figure 2 and Figure 3 In addition, the lubricating plate limit frame 6 may include an outer limit frame 63, or the lubricating plate limit frame 6 may not include the outer limit frame 63.

[0039] In this embodiment, the steel roof truss support 4 is connected with a first positioning upper vertical plate 67 and a second positioning upper vertical plate 68. The first positioning upper vertical plate 67 is parallel to the plane where the X-axis and the Z-axis are located, and the second positioning upper vertical plate 68 is parallel to the plane where the Y-axis and the Z-axis are located. The first positioning upper vertical plate 67 is detachably connected to the first positioning lower vertical plate 64, and the second positioning upper vertical plate 68 is detachably connected to the second positioning lower vertical plate 65.

[0040] In this embodiment, the steel roof truss support 4 includes a support lower base plate 41, a support upper base plate 42, a support transverse plate 43 and a support longitudinal plate 44. The support lower base plate 41 and the support upper base plate 42 are parallel to the plane where the X-axis and the Y-axis are located. The support lower base plate 41 and the wear-resistant lubrication plate 8 are stacked, the support transverse plate 43 is parallel to the plane where the X-axis and the Z-axis are located, the support longitudinal plate 44 is parallel to the plane where the Y-axis and the Z-axis are located, and the middle part of the support transverse plate 43 intersects with the middle part of the support longitudinal plate 44 to form a cross structure.

[0041] In this embodiment, the support transverse vertical plate 43 is detachably connected to the first positioning upper vertical plate 67, and the support longitudinal vertical plate 44 is detachably connected to the second positioning upper vertical plate 68. The outer end of the support transverse vertical plate 43 is connected to the outer end of the support longitudinal vertical plate 44 through an arc-shaped dustproof steel plate 45. The arc-shaped dustproof steel plate 45 is located between the support lower bottom plate 41 and the support upper bottom plate 42. The upper end of the arc-shaped dustproof steel plate 45 is connected to the lower surface of the support upper bottom plate 42. The four arc-shaped dustproof steel plates 45 form a cylindrical structure. The lower end of the arc-shaped dustproof steel plate 45 contacts the upper surface of the upper limit horizontal plate 66. There are four upper limit horizontal plates 66, such as Figure 5 shown.

[0042] In this embodiment, the lubricating plate limit frame 6 is provided with a canvas dust cover 5, which is a cylindrical structure. The upper end of the canvas dust cover 5 is fixedly sleeved on the arc-shaped dustproof steel plate 45 through a stainless steel hoop 7, and the lower end of the canvas dust cover 5 is fastened and fixed. Figure 6 and Figure 8 shown.

[0043] In this embodiment, a stainless steel plate 9 is provided between the steel roof truss support 4 and the wear-resistant lubricating plate 8. The support lower base plate 41, the stainless steel plate 9 and the wear-resistant lubricating plate 8 are stacked and connected from top to bottom. The stainless steel plate 9 is connected and fixed to the steel roof truss support 4. The wear-resistant lubricating plate 8 is an ultra-high molecular weight polyethylene plate. The upper surface of the wear-resistant lubricating plate 8 is provided with circular grooves arranged in regular rows and columns, and lubricating silicone grease is provided in the grooves.

[0044] The wear-resistant lubricating plate 8 is a commercially available product, and the density of the wear-resistant lubricating plate 8 is 0.93 / cm 3 Up to 0.98g / cm 3 The ball indentation hardness of the wear-resistant lubricating plate 8 is 26.4MPa to 39.6MPa, the tensile strain at break of the wear-resistant lubricating plate 8 is greater than or equal to 250%, the tensile strength of the wear-resistant lubricating plate 8 is greater than or equal to 30MPa, the elastic modulus of the wear-resistant lubricating plate 8 is 680MPa to 1020MPa, and the thickness of the wear-resistant lubricating plate 8 is 7mm to 8mm.

[0045] In addition, the first positioning upper plate 67 can be connected to the steel roof frame support 4 (detachably connected or non-detachably connected), for example, the support horizontal plate 43 of the steel roof frame support 4 is connected to the first positioning upper plate 67, or the first positioning upper plate 67 can also be connected to the steel roof frame 2, such as Figure 2 The detachable connection can be made by bolt connection or other existing connection methods, and the fixed connection can be made by welding or other existing connection methods.

[0046] An industrial plant is introduced below, which comprises a plant steel column 1, a steel roof truss 2 and the above-mentioned steel structure roof truss sliding connection structure, the cantilevered corbel 3 is in a horizontal state, one end of the cantilevered corbel 3 is fixed in the plant steel column 1, and the steel roof truss 2 is connected and fixed to the steel roof truss support 4.

[0047] In this embodiment, the steel roof truss 2 is connected to a pointer 21, which includes a vertical rod section 22, a horizontal rod section 23 and an upright pointed section 24 connected in sequence. A scale table 31 is provided on the lower surface of the cantilevered corbel 3. The scale lines in the scale table 31 are parallel to the X-axis and the Y-axis respectively. The upper end of the pointed section 24 is located directly below the zero point position of the scale table 31. Figures 9 to 11 In actual use, the Z-axis direction corresponds to the vertical direction, and the plane where the X-axis and the Y-axis are located corresponds to the horizontal plane.

[0048] The following introduces the construction and use methods of the steel structure roof truss sliding connection structure and industrial plant.

[0049] First, follow Figures 1 to 11 The steel structure roof truss sliding connection structure and the industrial plant are constructed so that the upper end of the pointed section 24 is located directly below the zero position of the scale table 31, and then the first positioning upper plate 67 and the second positioning upper plate 68 are removed, so that the horizontal and vertical limits between the steel roof truss support 4 and the wear-resistant lubricating plate 8 are released, and the steel roof truss support 4 can move horizontally and / or vertically corresponding to the wear-resistant lubricating plate 8, the horizontal direction is the X-axis direction or the span direction), and the vertical direction is the Y-axis direction or the length direction.

[0050] The steel structure roof truss sliding connection structure uses the form of a wear-resistant lubricating plate, and places the steel roof truss 2 as a sliding body on the wear-resistant lubricating plate 8 of the cantilevered corbel 3. The steel roof truss 2 can move along the X-axis direction and the Y-axis direction. The transverse and longitudinal deformation of the factory building is released by the bidirectional sliding of the steel roof truss 2, so as to meet the requirements of bidirectional sliding and thus meet the setting of the bidirectional expansion joint of the factory building. At the same time, a lubricating plate limit frame 6 is set around the wear-resistant lubricating plate 8 to limit the influence of excessive deformation of the factory building on the structure. And a simple deformation measurement is performed by the pointer 21 set on the steel roof truss 2 and the scale table 31 set on the cantilevered corbel 3.

[0051] In addition, during the design of the industrial plant, it is also necessary to set the node form of the sliding connection of the roof truss at the connection between the corresponding plant truss and the column according to the requirements of the process and the actual situation on site, and in accordance with the requirements of the temperature section length in the design standard, so as to meet the design requirements of the two-way temperature deformation expansion joint. At the same time, the scheme of the present invention also provides the technical requirements of the wear-resistant lubricating plate, which is convenient for the construction party to purchase and make. In the node method, a canvas dust cover is set to ensure the dustproof of the node, thereby ensuring the durability of the node and meeting the design and use requirements.

[0052] The above is only a specific embodiment of the present invention, and cannot be used to limit the scope of the invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the protection scope of the present invention, should still fall within the scope of this patent. In addition, the technical features of the present invention can be freely combined with each other, with technical features and technical solutions, and with technical solutions.

Claims

1. A steel structure roof truss sliding connection structure, characterized in that: In a spatial rectangular coordinate system with X, Y and Z axes as coordinate axes, the steel structure roof truss sliding connection structure comprises a steel roof truss support (4), a wear-resistant lubricating plate (8), a lubricating plate limiting frame (6) and a cantilevered corbel (3) arranged in sequence along the Z axis direction, the upper surface of the wear-resistant lubricating plate (8) is parallel to the plane where the X axis and the Y axis are located, the wear-resistant lubricating plate (8), the lubricating plate limiting frame (6) and the cantilevered corbel (3) are relatively fixed, and the steel roof truss support (4) can move on the wear-resistant lubricating plate (8) along the X axis direction and the Y axis direction; The lubricating plate limiting frame (6) comprises a limiting bottom plate (61) and an inner limiting frame (62), the lower end of the inner limiting frame (62) is connected to the limiting bottom plate (61), the wear-resistant lubricating plate (8) is matched and arranged in the inner limiting frame (62), and the wear-resistant lubricating plate (8), the limiting bottom plate (61) and the cantilevered corbel (3) are stacked in sequence from top to bottom; The inner limit frame (62) is a rectangular structure. A first positioning lower vertical plate (64) and a second positioning lower vertical plate (65) are fixed outside the inner limit frame (62). The first positioning lower vertical plate (64) is parallel to the plane where the X-axis and the Z-axis are located. The second positioning lower vertical plate (65) is parallel to the plane where the Y-axis and the Z-axis are located. The upper end of the inner limit frame (62) is connected to an upper limit horizontal plate (66). A stainless steel plate (9) is provided between the steel roof frame support (4) and the wear-resistant lubricating plate (8), the wear-resistant lubricating plate (8) and the stainless steel plate (9) are stacked and connected, and the stainless steel plate (9) is connected and fixed to the steel roof frame support (4).

2. The steel structure roof truss sliding connection structure according to claim 1, characterized in that: The steel roof truss support (4) is connected with a first positioning upper vertical plate (67) and a second positioning upper vertical plate (68), the first positioning upper vertical plate (67) is parallel to the plane where the X-axis and the Z-axis are located, the second positioning upper vertical plate (68) is parallel to the plane where the Y-axis and the Z-axis are located, the first positioning upper vertical plate (67) is detachably connected to the first positioning lower vertical plate (64), and the second positioning upper vertical plate (68) is detachably connected to the second positioning lower vertical plate (65).

3. The sliding connection structure of the steel structure roof truss according to claim 2 is characterized in that: The steel roof frame support (4) comprises a support lower bottom plate (41), a support upper bottom plate (42), a support transverse plate (43) and a support longitudinal plate (44). The support lower bottom plate (41) and the support upper bottom plate (42) are parallel to the plane where the X-axis and the Y-axis are located, the support transverse plate (43) is parallel to the plane where the X-axis and the Z-axis are located, and the support longitudinal plate (44) is parallel to the plane where the Y-axis and the Z-axis are located. The middle part of the support transverse plate (43) intersects with the middle part of the support longitudinal plate (44).

4. The steel structure roof truss sliding connection structure according to claim 3, characterized in that: The support transverse plate (43) is connected to the first positioning upper plate (67), the support longitudinal plate (44) is connected to the second positioning upper plate (68), the outer end of the support transverse plate (43) is connected to the outer end of the support longitudinal plate (44) through an arc-shaped dustproof steel plate (45), the upper end of the arc-shaped dustproof steel plate (45) is connected to the lower surface of the support upper bottom plate (42), and the lower end of the arc-shaped dustproof steel plate (45) contacts the upper surface of the upper limit transverse plate (66).

5. The sliding connection structure of the steel structure roof truss according to claim 4 is characterized in that: The lubricating plate limiting frame (6) is provided with a canvas dust cover (5) on its outer sleeve. The canvas dust cover (5) is in a cylindrical structure. The upper end of the canvas dust cover (5) is fixedly sleeved outside the arc-shaped dustproof steel plate (45) through a stainless steel hoop (7), and the lower end of the canvas dust cover (5) is fastened and fixed.

6. The sliding connection structure of the steel structure roof truss according to claim 1, characterized in that: The wear-resistant lubricating plate (8) is an ultra-high molecular weight polyethylene plate, and the upper surface of the wear-resistant lubricating plate (8) is provided with circular grooves arranged in regular rows and columns.

7. An industrial plant, characterized in that: The industrial plant comprises a plant steel column (1), a steel roof truss (2) and the steel structure roof truss sliding connection structure according to claim 1, one end of the cantilevered corbel (3) is located inside the plant steel column (1), and the steel roof truss (2) is connected and fixed to the steel roof truss support (4).

8. The industrial plant according to claim 7, characterized in that: The steel roof frame (2) is connected with a pointer (21), which comprises a vertical rod section (22), a horizontal rod section (23) and an upright pointed section (24) which are connected in sequence. A scale table is provided on the lower surface of the cantilevered corbel (3), and the scale lines in the scale table are parallel to the X-axis and the Y-axis respectively. The upper end of the pointed section (24) is located directly below the zero point position of the scale table.

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