A steel structure roof structure in high altitude areas and its construction method

Abstract

The present invention relates to the technical field of building roofs. The present invention discloses a steel structure roof structure in high-altitude areas and its construction method, which includes two groups of support columns distributed linearly. Two adjacent support columns in the transverse direction are connected by a support cross beam. A vertical support member is fixedly connected to the middle of the top surface of the support cross beam. A plurality of slope connection blocks are fixedly connected to the top surface of the support cross beam. A plurality of U-shaped purlins are fixedly connected between two adjacent support cross beams; the heat insulation platform supports and fixes the U-shaped purlins and the vertical support members, and after building a heat insulation layer at the heat insulation platform, a spacing is formed between the heat insulation platform and the ceiling layer, and the space between the heat insulation platform and the ceiling layer can be used to insert waterways, airways, and circuits, and the fixed nodes are concentrated between the heat insulation platform and the ceiling layer, taking advantage of the relatively stable room temperature to solve the problem of the influence of the large day-night temperature difference in high altitude on the fixed nodes of the roof purlins.

Description

Technical Field

[0001] The present invention relates to the technical field of building roofs, and specifically to a steel structure roof structure and a construction method thereof in high-altitude areas. Background Art

[0002] In high-altitude areas, the temperature difference between day and night is large. The roof frame of the steel structure is mainly fixed in the form of bolts or welding. The purlins provide grid-shaped support for the roof laying surface. Between the purlins and the ridge, they are fixed in the form of self-tapping screws, bolts or a combination of welding. Figure 9 It can be clearly seen that with the increase in the laying density of the purlins, a large number of fixed nodes are generated between the purlins and the ridge. The fixed nodes are infinitely close to the roof surface. Due to the temperature difference between day and night, the change in temperature is more likely to act on the fixed nodes. Therefore, the purlin fixed nodes in high-altitude areas are easily loosened due to the thermal expansion and contraction of steel. Summary of the Invention

[0003] The purpose of the present invention is to provide a steel structure roof structure and a construction method thereof in high-altitude areas. By using a bent integrally formed purlin for longitudinal lifting and sinking the purlin, while forming a double-layer space, the fixed nodes are close to the interior, reducing the influence of thermal expansion and contraction of the temperature difference between day and night on the nodes, and at the same time meeting the layout of indoor waterways, airways, and circuits and the reinforcement support for the C-shaped purlins, so as to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A steel structure roof structure in high-altitude areas includes two groups of support columns distributed linearly. Between the support columns in the same group, they are connected by column connecting beams. Between two adjacent support columns horizontally, they are connected by support crossbeams. The bottom surfaces of the support crossbeams and the column connecting beams are flush and are enclosed by a plurality of ceiling keels to form a ceiling surface;

[0006] In the middle of the top surface of the support crossbeam, a vertical support member is fixedly connected. A plurality of slope connection blocks are fixedly connected to the top surface of the support crossbeam. A plurality of C-shaped purlins are fixedly connected between two adjacent support crossbeams. The C-shaped purlins are fixed at the inclined surface of the slope connection blocks. A top beam is inserted into the vertical support member. The top beam and the C-shaped purlins cooperate to form a roof installation surface;

[0007] At one end of the side of the C-shaped purlin close to the slope connection block, a heat insulation platform connection hole is opened. On the vertical support member, a hole body is opened at the same horizontal plane as the heat insulation platform connection hole;

[0008] There is a heat insulation platform between the ceiling surface and the roof installation surface. The heat insulation platform includes heat insulation layer purlins and circular insertion rods. The heat insulation platform is fixedly inserted through the circular insertion rods, the connection holes of the heat insulation platform, and the holes of the vertical support members. The heat insulation layer purlins are laid perpendicular and equidistantly to the circular insertion rods.

[0009] As a further solution of the present invention: Two adjacent support beams form a spanning unit, and the C-shaped purlins between each spanning unit are staggered.

[0010] As a further solution of the present invention: The width of the slope connection block can accommodate the fixation of two C-shaped purlins at the same time, and the number of C-shaped purlins in each spanning unit corresponds to the number of slope connection blocks on the top surface of a single support beam.

[0011] As a further solution of the present invention: Heat insulation layer purlins are distributed on both sides of the vertical support member and the ends of the C-shaped purlins, and the heat insulation layer purlins are in contact with the side surfaces of the vertical support member and the end sides of the C-shaped purlins.

[0012] As a further solution of the present invention: The circular insertion rods and the ceiling keels are staggered, and the fixing nodes of the heat insulation layer purlins and the circular insertion rods are vertically corresponding to the midlines of two adjacent ceiling keels.

[0013] As a further solution of the present invention: A roof steel lining foam board is laid between the top beam and the C-shaped purlins, and a lying strip is installed on the top surface of the vertical support member.

[0014] As a further solution of the present invention, a construction method for a steel structure roof structure in a high-altitude area includes:

[0015] S1: First, install the support columns, and synchronously install the column connection beams and support beams to form a basic rectangular frame;

[0016] S2: Install the C-shaped purlins and the top beam, fix the C-shaped purlins to the slope connection blocks, and fix the top beam to the vertical support members to form a roof surface frame;

[0017] S3: Establish a heat insulation platform with the connection holes of the heat insulation platform as the reference horizontal plane. The circular insertion rods pass through the connection holes of the heat insulation platform and the holes of the vertical support members. The heat insulation layer purlins are perpendicular to the circular insertion rods and form multiple fixing nodes with the circular insertion rods. Moreover, the C-shaped purlins and the vertical support members are fixedly clamped by two heat insulation layer purlins, and heat insulation surface construction is carried out on the surface of the heat insulation platform;

[0018] S4: Lay the ceiling keel with the bottom surface of the support cross beam connected to the column as the reference horizontal plane, and install the ceiling on the ceiling installation surface formed by the ceiling keel. The ceiling is fixedly connected to the ceiling keel. At the same time, the connection nodes between the midline of the ceiling and the insulation layer purlin and the round plug are fixed by suspender rods.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] Fix the column connecting beam and the support cross beam below the top end of the support column, and cooperate with the combination of the ceiling keel and the support cross beam to form a sunken ceiling surface. At the same time, utilize the height-lifting characteristic of the C-shaped purlin. After the C-shaped purlin is connected to the support cross beam, the connecting end of the C-shaped purlin descends and the height of the roof surface remains unchanged, thus forming a longitudinal spacing. Build an insulation platform with the C-shaped purlin. The insulation platform supports and fixes the C-shaped purlin and the vertical support members. After building the insulation layer at the insulation platform, a spacing is formed between the insulation platform and the ceiling layer. The space between the insulation platform and the ceiling layer can be used to insert waterways, airways, and circuits, and the fixed nodes are concentrated between the insulation platform and the ceiling layer. Utilize the relatively stable room temperature characteristic to solve the problem of the influence of the large day-night temperature difference at high altitude on the fixed nodes of the roof purlin. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a three-dimensional schematic diagram of a steel structure roof structure in a high-altitude area;

[0023] Figure 2 It is a schematic diagram after removing the roof steel lining foam board in a steel structure roof structure in a high-altitude area;

[0024] Figure 3 At Figure 2 It is a schematic diagram after removing the insulation layer and the ceiling on the basis of

[0025] Figure 4 For Figure 3 It is a schematic diagram after removing the insulation platform and the ceiling keel on the basis of

[0026] Figure 5 For Figure 3 It is a three-dimensional schematic diagram after removing the ceiling keel on the basis of

[0027] Figure 6A three-dimensional schematic diagram of another perspective of a steel structure roof in high altitude areas;

[0028] Figure 7 A comparison schematic diagram of two fixing methods of C-shaped purlins in a steel structure roof in high altitude areas;

[0029] Figure 8 A front view schematic diagram of a steel structure roof in high altitude areas;

[0030] Figure 9 A fixing schematic diagram of the existing roof purlins;

[0031] In the figure: 1. Support column; 11. Column connecting beam; 2. C-shaped purlin; 21. Insulation platform connecting hole; 3. Support cross beam; 31. Slope connecting block; 32. Vertical support member; 4. Top beam; 5. Insulation platform; 51. Insulation layer purlin; 52. Round insertion rod; 6. Ceiling keel; 7. Roof steel lining foam board. Specific implementation mode

[0032] In high altitude areas, the temperature difference between day and night is large. The roof frame of the steel structure is mainly fixed by bolts or welding. The purlins provide grid-shaped support for the roof laying surface, and the purlins and the ridge are fixed by self-tapping screws, bolts or a combination of welding. Figure 9 It can be clearly seen that with the increase of the laying density of the purlins between the purlins and the ridge, a large number of fixing nodes are generated, and the fixing nodes are infinitely close to the roof surface. Due to the reason of the temperature difference between day and night, the change of temperature is more likely to act on the fixing nodes. Therefore, the fixing nodes of the purlins in high altitude areas are frequently affected by the thermal expansion and contraction of steel, and are very easy to loosen.

[0033] Please refer to Figures 1-8 : In this embodiment: It includes two groups of support columns 1 distributed linearly. The support columns 1 in the same group are connected by column connecting beams 11. The two adjacent support columns 1 in the horizontal direction are connected by support cross beams 3. The bottom surfaces of the support cross beams 3 and the column connecting beams 11 are flush and are enclosed by a plurality of ceiling keels 6 to form a ceiling surface.

[0034] Please refer to Figure 3, first, the support column 1 serves as the main longitudinal support. The bottom of the support column 1 can be fixedly connected to the pile foundation. To increase the structural stability, first, the column connecting beam 11 and the support cross beam 3 cooperate with the support column 1 to form a rectangular frame structure, which is the basic frame. However, to solve the problem that the purlin is close to the roof surface, resulting in frequent and direct influence on the fixed nodes due to heat and cold, the fixed nodes of the purlin are lowered. Therefore, the column connecting beam 11 and the support cross beam 3 are fixed in the area extending downward from the top of the support column 1. By reducing the heights of the column connecting beam 11 and the support cross beam 3 and cooperating with the ceiling keel 6 to enclose the surfaces of the column connecting beam 11 and the support cross beam 3, the ceiling surface of the internal house is formed.

[0035] A vertical support member 32 is fixedly connected to the middle of the top surface of the support cross beam 3. A plurality of slope connecting blocks 31 are fixedly connected to the top surface of the support cross beam 3. A plurality of U-shaped purlins 2 are fixedly connected between two adjacent support cross beams 3. The U-shaped purlins 2 are fixed at the inclined surfaces of the slope connecting blocks 31. A top beam 4 is inserted into the vertical support member 32. The top beam 4 and the U-shaped purlins 2 cooperate to form a roof installation surface.

[0036] The vertical support member 32 is fixed in the middle of the support cross beam 3. The top surface height of the vertical support member 32 is the highest point of the entire roof. If the span of the support cross beam 3 increases, support columns can be arranged at the bottom of the support cross beam 3. The support columns are located below the vertical support member 32 to support the middle of the support cross beam 3. The U-shaped purlins 2 are prefabricated in the form of non-cut welding bending processing to avoid cracking problems caused by heat and cold alternation in the area where the welding points are close to the roof area. The ends of the U-shaped purlins 2 are fixed to the slope connecting blocks 31, and the fixing method can be through bolts or welding or a combination of the two. At this time, due to the sunken design of the support cross beam 3, the fixed nodes of the U-shaped purlins 2 and the slope connecting blocks 31 are close to the indoor area, and the relatively constant temperature environment in the indoor area is utilized to improve the stability of the fixed nodes of the U-shaped purlins 2 and the slope connecting blocks 31. The length of the U-shaped purlin 2 is longer at the position closer to the vertical support member 32, so that the top surface of the U-shaped purlin 2 and the top beam 4 form a smooth inclined surface, thereby providing a support frame for the capping structure.

[0037] An insulation platform connection hole 21 is opened at one end of the side of the U-shaped purlin 2 close to the slope connecting block 31. A hole body is opened on the vertical support member 32 at the same horizontal plane as the insulation platform connection hole 21. There is an insulation platform 5 between the ceiling surface and the roof installation surface. The insulation platform 5 includes an insulation layer purlin 51 and a circular insertion rod 52. The insulation platform 5 is fixedly inserted through the circular insertion rod 52, the insulation platform connection hole 21, and the hole body of the vertical support member 32. The insulation layer purlins 51 and the circular insertion rods 52 are laid vertically and equidistantly.

[0038] Due to the setting of the C-shaped purlin 2, a vertical distance is generated between the supporting surface and the fixing point. When the length of the C-shaped purlin 2 increases, it is easy to have a problem of force-induced bending. Therefore, a heat insulation platform connection hole 21 is opened near the slope connection block 31 of the C-shaped purlin 2. First, the round inserting rod 52 is inserted into the heat insulation platform connection hole 21. Please refer to Figure 3 , the round inserting rod 52 is inserted into the heat insulation platform connection hole 21 and spreads along the supporting cross beam 3. At this time, the heat insulation platform connection hole 21 and the C-shaped purlin 2 play a limiting role. At the same time, the round inserting rod 52 is fixed perpendicular to the heat insulation layer purlin 51. Multiple fixing points are generated between two adjacent heat insulation layer purlins 51, so as to reinforce the adjacent C-shaped purlins 2. At the same time, if the roof slope is too large, the vertical height of the C-shaped purlin 2 will increase. Through the fixing method of the heat insulation platform 5, the end points and non-horizontal rods of the C-shaped purlin 2 have two-point support, improving the force-bearing strength of the C-shaped purlin 2. And pipelines for ventilation, water supply, and power supply will also be set in the house. At this time, a heat insulation layer is set through the heat insulation platform 5, and the C-shaped purlin 2, the fixing nodes of the supporting cross beam 3, and the pipelines are located between the heat insulation layer and the ceiling layer, sealing and insulating the pipelines and the connection nodes of the C-shaped purlin 2 and the supporting cross beam 3 while reinforcing the C-shaped purlin 2 to meet the actual use requirements.

[0039] Two adjacent supporting cross beams 3 form a spanning unit, and the C-shaped purlins 2 between each spanning unit are staggered. When the roof steel-lined foam board 7 is used as the roof closing board, the roof steel-lined foam board 7 has good heat insulation effect and strength, and the roof steel-lined foam board 7 has good supporting effect. At this time, please refer to Figure 2 , the staggered C-shaped purlins 2 ensure the width of the C-shaped purlins 2 without increasing the width of the supporting cross beam 3 and the slope connection block 31. However, the gap between two adjacent C-shaped purlins 2 and between the C-shaped purlin 2 and the top beam 4 increases. At this time, it is fixed with the roof steel-lined foam board 7. And the roof steel-lined foam board 7 itself is light in weight, and the roof steel-lined foam board 7 has a certain strength, so it can make up for the deficiency of the large spacing of the C-shaped purlins 2.

[0040] The width of the slope connection block 31 can accommodate the fixation of two C-shaped purlins 2 at the same time. The number of C-shaped purlins 2 in each spanning unit corresponds to the number of slope connection blocks 31 on the top surface of a single supporting cross beam 3.

[0041] Please refer to Figure 7 , when the width of the slope connection block 31 can meet the fixation of two C-shaped purlins 2, the spacing of the C-shaped purlins 2 is significantly reduced at this time, and the design strength of this structure increases, which can be applied to areas with strong winds or connected with small-area roof closing units.

[0042] Thermal insulation layer purlins 51 are distributed on both sides of the ends of the vertical support member 32 and the U-shaped purlin 2, and the thermal insulation layer purlins 51 are in contact with the side surface of the vertical support member 32 and the side surface of the end of the U-shaped purlin 2.

[0043] Please refer to Figure 5 , when two adjacent thermal insulation layer purlins 51 are fixed to the round insertion rod 52, and at the same time the thermal insulation layer purlins 51 limit the U-shaped purlin 2 and the vertical support member 32, the thermal insulation layer purlins 51 can restrict the movement of the U-shaped purlin 2 and the vertical support member 32 along the axial direction of the round insertion rod 52. At the same time, the round insertion rod 52 can restrict the movement of the U-shaped purlin 2 and the vertical support member 32 along the axial direction of the thermal insulation layer purlins 51, thereby forming a composite strengthening surface. And the composite strengthening surface is still in a sunken design away from the roof, thereby reducing the environmental influence on the fixed nodes.

[0044] The round insertion rods 52 and the ceiling keels 6 are staggered. The fixed nodes of the thermal insulation layer purlins 51 and the round insertion rods 52 are vertically corresponding to the midlines of two adjacent ceiling keels 6.

[0045] The ceiling keels 6 move along the direction of the thermal insulation layer purlins 51. Since the bottom surface of the ceiling keels 6 is not flush with the bottom surfaces of the column connecting beams 11 and the support cross beams 3, fixing along the ceiling keels 6 will result in no support for the middle part of the top plate, that is, the part of the top plate between two adjacent ceiling keels 6. Therefore, the round insertion rods 52 and the ceiling keels 6 are staggered. The fixed nodes formed by the thermal insulation layer purlins 51 and the round insertion rods 52 can be suspended and fixed to the middle part of the top plate module installed on the ceiling in the form of suspenders and suspension ropes to ensure stability.

[0046] A batten is installed on the top surface of the vertical support member 32, and the batten can seal the splicing gap between two roof steel lining foam boards 7 to avoid water leakage problems.

[0047] Construction method:

[0048] S1: First, install the support columns 1, and synchronously install the column connecting beams 11 and the support cross beams 3 to form a basic rectangular frame;

[0049] S2: Install the U-shaped purlins 2 and the top beams 4, and fix the U-shaped purlins 2 to the slope connecting blocks 31, and fix the top beams 4 to the vertical support members 32 to form a roof surface frame;

[0050] S3: Establish the heat insulation platform 5 with the heat insulation platform connection hole 21 as the reference horizontal plane. The circular insertion rod 52 passes through the heat insulation platform connection hole 21 and the hole body of the vertical support member 32. The heat insulation layer purlin 51 is perpendicular to the circular insertion rod 52 and forms multiple fixed nodes with the circular insertion rod 52. Moreover, the U-shaped purlin 2 and the vertical support member 32 are clamped and fixed by two heat insulation layer purlins 51, and heat insulation surface construction is carried out on the surface of the heat insulation platform 5;

[0051] S4: Lay the ceiling keel 6 with the column connection beam 11 and the bottom surface of the support cross beam 3 as the reference horizontal plane, and install the ceiling on the ceiling installation surface formed by the ceiling keel 6. The ceiling is fixedly connected to the ceiling keel 6. At the same time, the connection node between the midline of the ceiling and the heat insulation layer purlin 51 and the circular insertion rod 52 is fixed by a suspension rod.

[0052] The above-mentioned is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A steel structure roof structure in a high-altitude area, comprising two groups of support columns (1) distributed linearly. The support columns (1) in the same group are connected by column connecting beams (11), and two laterally adjacent support columns (1) are connected by support cross beams (3). It is characterized in that: The bottom surfaces of the support cross beam (3) and the column connecting beam (11) are flush and are enclosed by a plurality of ceiling keels (6) to form a ceiling surface; In the middle of the top surface of the support cross beam (3), a vertical support member (32) is fixedly connected. A plurality of slope connection blocks (31) are fixedly connected to the top surface of the support cross beam (3). A plurality of C-shaped purlins (2) are fixedly connected between two adjacent support cross beams (3). The C-shaped purlins (2) are fixed at the inclined surfaces of the slope connection blocks (31). A top beam (4) is inserted into the vertical support member (32). The top beam (4) and the C-shaped purlins (2) cooperate to form a roof installation surface; At one end of the side surface of the C-shaped purlin (2) close to the slope connection block (31), a heat insulation platform connection hole (21) is provided. On the vertical support member (32), a hole body located in the same horizontal plane as the heat insulation platform connection hole (21) is provided; There is a heat insulation platform (5) between the ceiling surface and the roof installation surface. The heat insulation platform (5) includes a heat insulation layer purlin (51) and a circular insertion rod (52). The heat insulation platform (5) is fixedly inserted through the circular insertion rod (52) and the hole body of the vertical support member (32) and the heat insulation platform connection hole (21). The heat insulation layer purlins (51) are laid perpendicular and equidistantly to the circular insertion rod (52); 2. The steel structure roof structure in high altitude areas according to claim 1, characterized in that: Two adjacent support cross beams (3) form a spanning unit. The C-shaped purlins (2) between each spanning unit are staggeredly distributed; 3. The steel structure roof structure in a high altitude area according to claim 2, characterized in that: The width of the slope connection block (31) can accommodate the fixation of two C-shaped purlins (2) at the same time. The number of C-shaped purlins (2) in each spanning unit corresponds to the number of slope connection blocks (31) on the top surface of a single support cross beam (3); 4. A steel structure roof structure in a high altitude area according to claim 1, characterized in that: On both sides of the ends of the vertical support member (32) and the C-shaped purlin (2), the heat insulation layer purlins (51) are distributed, and the heat insulation layer purlins (51) are in contact with the side surface of the vertical support member (32) and the side surface of the end of the C-shaped purlin (2); 5. A steel structure roof structure in a high altitude area according to claim 1, characterized in that: The circular insertion rods (52) and the ceiling keels (6) are staggeredly distributed. The fixed nodes of the heat insulation layer purlins (51) and the circular insertion rods (52) are vertically corresponding to the midlines of two adjacent ceiling keels (6); 6. A steel structure roof structure in a high-altitude area according to claim 1, characterized in that: A roof steel lining foam board (7) is laid between the top beam (4) and the C-shaped purlin (2). A batten is installed on the top surface of the vertical support member (32); 7. A construction method for a steel structure roof structure in high altitude areas according to any one of claims 1-6, characterized in that: Including: S1: First, install the support columns (1), and synchronously install the column connecting beams (11) and the support cross beams (3) to form a basic rectangular frame; S2: Install the C-shaped purlins (2) and the top beam (4), fix the C-shaped purlins (2) to the slope connection blocks (31), and fix the top beam (4) to the vertical support member (32) to form a roof surface frame; S3: Establish an insulation platform (5) with the insulation platform connection hole (21) as the reference horizontal plane. The circular insertion rod (52) passes through the insulation platform connection hole (21) and the hole of the vertical support member (32). The insulation layer purlin (51) is perpendicular to the circular insertion rod (52) and forms multiple fixed nodes with the circular insertion rod (52). Moreover, the C-shaped purlin (2) and the vertical support member (32) are clamped and fixed by two insulation layer purlins (51), and insulation surface construction is carried out on the surface of the insulation platform (5); S4: Lay the ceiling keel (6) with the bottom surfaces of the column connecting beam (11) and the support cross beam (3) as the reference horizontal plane, and install the ceiling on the ceiling installation surface formed by the ceiling keel (6). The ceiling is fixedly connected to the ceiling keel (6). At the same time, the connection nodes between the midline of the ceiling and the insulation layer purlin (51) and the circular insertion rod (52) are fixed by hanging rods.

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