Large-span high-free inclined steel truss upper support hanger structure and construction method

Abstract

The invention discloses a large-span high-free inclined steel truss upper support hanger structure which is mounted on a steel truss beam and comprises an upper holding pole, a lower holding pole, a locking fastener, a locking screw rod, a rotating base, a hanging rod and a bottom support cross arm, an upper holding pole, a lower holding pole, a locking fastener and a locking screw system for the inclined steel truss girder are designed and can be firmly fixed to the steel truss girder, and the structural strength of the root is guaranteed; notches are formed in the locking long holes in the upper holding pole and the lower holding pole, so that the whole structure can be firmer; the adapter sleeve is arranged between the suspender and the pin joint lug plate, the suspender, the pin joint lug plate and the adapter sleeve are fixed through the pin, and then the adapter sleeve and the suspender are fixed through the reinforcing bolt, so that the hinged joint part of the suspender has very high joint strength, and the large-span high-free strength requirement is ensured; through the cooperation of the three means, the structural strength of the support hanger arranged on the inclined steel truss under the condition that the perpendicularity of the hanger rod needs to be guaranteed for the steel pipe which is large in longitudinal span, large in diameter and high in air.

Description

Technical Field

[0001] The present invention belongs to the field of construction of mechanical and electrical pipelines in steel truss buildings, and particularly relates to a support and hanger structure and construction method for large-span high-overhanging inclined steel trusses. Background Art

[0002] Steel truss buildings are a type of building form mainly made of steel and supported by a truss structure. The truss structure is composed of multiple triangular units and has the advantages of high strength, light weight, and large span, and is widely used in large-span buildings such as stadiums, exhibition halls, and airport terminals.

[0003] In conventional concrete roofs, anchor bolts are usually used to fix the suspender rods, and a cross arm is installed at the bottom end of the suspender rod to form a support and hanger. For the installation of pipelines required for mechanical and electrical engineering on the inclined steel trusses above large venues, in steel structures where the roof is composed of steel truss beams, there are usually two measures when constructing support and hangers: The first is to directly weld the suspender rods on the steel truss beam, and a cross arm is installed at the bottom end of the suspender rod to form a support and hanger. However, welding after the steel truss beam is slid into place will change its stress state and bring negative impacts; the other is to use a hoop to fix and wrap the steel truss beam, and then install the suspender rod on the hoop.

[0004] However, with the development of steel structure buildings, there are more and more forms of steel truss roofs, and there appears a structural form of inclined steel truss beams with non-horizontal upper and lower surfaces. Moreover, during the construction of spiral smoke exhaust pipes with a large span (more than 100 meters long), a large diameter (1400 mm), and a large overhanging suspension height (the distance between the pipe and the steel truss beam is 3 - 6 m) above the catwalk layer. In this working condition, if the form of the support and hanger is to directly weld the suspender rod on the steel truss beam and install a cross arm at the bottom end of the suspender rod to form a support and hanger, there will be negative impacts due to the change of its stress state during welding. If the form of the support and hanger is to use a hoop to fix and wrap the steel truss beam and then install the suspender rod on the hoop, there is a problem of poor combination stability between the hoop and the steel truss beam, and there is also a problem of difficulty in combining the suspender rod with the inclined hoop due to the inclination of the steel truss beam. Even if the hoop and the suspender rod are connected by pin hinges, there will be a problem of weak nodes due to the large distance between the pipe and the steel truss. Summary of the Invention

[0005] The present invention provides a support and hanger structure and construction method for large-span high-overhanging inclined steel trusses, aiming to solve the construction problem of setting support and hangers for steel pipes with a large longitudinal span, a large diameter, and a high overhanging height on inclined steel trusses.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A support and hanger structure for large-span high-overhanging inclined steel trusses, installed on a steel truss beam, includes an upper holding rod, a lower holding rod, a locking fastener, a locking screw, a rotating base, a suspender rod, and a bottom cross arm; The upper lifting rod is arranged at the top of the steel truss beam and extends beyond the steel truss beam at both ends, presenting an inclined shape matching the steel truss beam. The upper lifting rod is square-tubular and has a locking area with concave corners at the four corners of the cross-section of the upper lifting rod. A locking long hole extending along the length direction is opened at the bottom end of the upper lifting rod. The lower lifting rod is arranged at the bottom of the steel truss beam and extends beyond the steel truss beam at both ends, presenting an inclined shape matching the steel truss beam. The lower lifting rod is square-tubular and has a locking area with concave corners at the four corners of the cross-section of the lower lifting rod. A perforation for connecting the rotating base is opened at the bottom end of the lower lifting rod. The locking fasteners include a first fixed lock at the top of the upper lifting rod and a first locking lock at the bottom of the upper lifting rod respectively arranged at both ends of the upper lifting rod, and a second locking lock at the top of the lower lifting rod and a second fixed lock at the bottom of the lower lifting rod respectively arranged at both ends of the lower lifting rod. The first fixed lock is C-shaped and buckles downward on the top of the upper lifting rod. The two side edges of the first fixed lock and the first locking lock are respectively located in the locking area of the upper lifting rod. The two side edges of the second fixed lock and the second locking lock are respectively located in the locking area of the lower lifting rod. A long hole for passing through the rotating base is opened at the bottom end of the lower lifting rod. The locking screw sequentially passes through the second fixed lock, the lower lifting rod, the second locking lock, the first locking lock, the upper lifting rod and the first fixed lock from bottom to top. The nut of the locking screw is located at the bottom of the lower lifting rod. A second locking nut is threadedly connected to the locking screw at the top end of the second locking lock, a first locking nut is threadedly connected to the locking screw at the bottom end of the first locking lock, and a fixed nut is threadedly connected to the locking screw at the top end of the first fixed lock. The rotating base includes a connecting plate at the bottom end of the lower lifting rod, a base bolt connecting the connecting plate and the lower lifting rod, and pin-connected ear plates integral with the connecting plate. Two pin-connected ear plates are arranged at intervals. The suspension rod is provided with a plurality of connecting holes, and the top end is hinged to the two pin-connected ear plates by pins and is vertical. The bottom support cross beam is fixedly connected to the bottom end of the suspension rod and is used for carrying pipelines.

[0007] As a preferred solution of this embodiment, the surfaces of both sides of the bottom end of the upper lifting rod cooperating with the first locking lock are outwardly inclined outer locking surfaces, and the inner sides of the two side edges of the first locking lock are locking extrusion surfaces cooperating with the outer locking surfaces. The surfaces of both sides of the top end of the lower lifting rod cooperating with the second locking lock are outwardly inclined outer locking surfaces, and the inner sides of the two side edges of the second locking lock are locking extrusion surfaces cooperating with the outer locking surfaces.

[0008] As a preferred solution of this embodiment, a transition sleeve is arranged on the outer side of the top end of the suspension rod. The pin passes through the two pin-connected ear plates, the transition sleeve and the suspension rod, and the transition sleeve and the suspension rod are also connected by two reinforcing bolts.

[0009] As a preferred solution of this embodiment, the connecting hole is a rectangular hole, and a rectangular block matching the rectangular hole is arranged in the middle of the reinforcing bolt, and the thickness of the rectangular block is less than the thickness of the hanging rod.

[0010] As a preferred solution of this embodiment, an upward arc-shaped limiting sliding support is further fixedly connected to the top of the bottom support crossbar, and both ends of the limiting sliding support are fixed on the hanging rod.

[0011] As a preferred solution of this embodiment, a limiting crossbar is further arranged on the top of the pipeline, and both ends of the limiting crossbar are respectively fixed on two hanging rods.

[0012] A construction method for the upper support and hanger structure of a large-span high-overhanging inclined steel truss includes the following steps. Step 1. Detailed design, including BIM pipe layout, pipe layout checking, model combination with Tekla model, model checking, deepened layout of adjustable-angle assembled support and hanger, force calculation, and determination of the specifications of support and hanger components. Step 2. Measurement and checking, including measuring and positioning the steel truss that has been slid and positioned, marking the center of the positioning point, and checking the point position. Step 3. Material preparation and processing: including upper holding rod, lower holding rod, locking fastener, and rotating base. Step 4. Hoop installation: The construction workers align the centers of the upper holding rod and the lower holding rod with the marked and rechecked center cross mark, pass the locking screw from bottom to top, and then tighten the second locking nut, the first locking nut, and the fixing nut. Step 5. Ground assembly: Fix the bottom support crossbar and the hanging rod, then sleeved the adapter sleeve on the hanging rod, and fix the adapter sleeve and the hanging rod through the reinforcing bolt. Step 6. Lift the whole and connect the hanging rod, the adapter sleeve, and the pin-connected ear plate with pins. Step 7. Pipeline installation: After the support and hanger pass the acceptance, install the limiting sliding support, then install the pipeline, and finally install the limiting crossbar.

[0013] The beneficial effects of the present invention are as follows: In this embodiment, for steel pipes with a large longitudinal span, large diameter, and high elevation, support hangers are provided on the inclined steel truss. The means adopted are as follows: 1) A system of upper holding rods, lower holding rods, locking fasteners, and locking screws is designed for the inclined steel truss beam, which can be firmly fixed on the steel truss beam, ensuring the structural strength of the root; 2) There are gaps at the locking long holes on the upper and lower holding rods. Through the cooperation of the outwardly inclined locking surface and the locking extrusion surface, after locking, the upper and lower holding rods can form a holding force with the steel structure beam at the position of the gap, making the overall structure more firm; 3) A transition sleeve is provided between the suspension rod and the pin-connected ear plate. The pin fixes the three, and then the transition sleeve and the suspension rod are fixed through the reinforcement bolts, making the joint part of the suspension rod articulated have very high joint strength, ensuring the strength requirements for large-span and high-elevation. Through the cooperation of the above three means, the structural strength of the support hanger set on the inclined steel truss for steel pipes with a large longitudinal span, large diameter, and high elevation while ensuring the verticality of the suspension rod is realized. The suspension rod can be rotated to the vertical direction through the pin connection of the rotating base. Compared with the current construction method, 1) It avoids the negative impact brought by changing the stress state after welding the steel truss in place by sliding, and successfully solves the problem that the suspension rod cannot be vertically rooted; 2) It overcomes the problems of long overall processing and production cycle of the traditional method of welding the common section steel to the steel truss for rooting, high requirements for the technical level, physical fitness of welders and environmental factors during the welding of the hanger root, difficult to guarantee the welding quality, and the welding quality has a great influence on the vertical bearing capacity of the support hanger, and the safety and reliability of high-altitude welding operations are poor; 3) A system of upper holding rods, lower holding rods, locking fasteners, and locking screws is designed for the inclined steel truss beam, which can be firmly fixed on the steel truss beam, ensuring the structural strength of the root; there are gaps at the locking long holes on the upper and lower holding rods, making the overall structure more firm; a transition sleeve is provided between the suspension rod and the pin-connected ear plate. The pin fixes the three, and then the transition sleeve and the suspension rod are fixed through the reinforcement bolts, making the joint part of the suspension rod articulated not only have very high joint strength, ensuring the strength requirements for large-span and high-elevation, but also having adjustable angles; 4) The innovative application of the adjustable-angle assembled support hanger construction method in this project shortens the node construction period of this part from the original planned 60 days to 45 days, and reduces the labor employment from the original planned 240 man-days to 90 man-days, saving a large amount of costs Other features and advantages of the present invention will be described in the following specification, and will be partially obvious from the specification, or will be understood by implementing the present invention; the main purpose and other advantages of the present invention can be realized and obtained through the solutions specifically pointed out in the specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2It is a schematic structural diagram of the rotating base in the embodiment of the present invention; Figure 3 It is a side view of the upper holding rod in the embodiment of the present invention; Figure 4 It is a schematic structural diagram of the rotating base in the embodiment of the present invention; Figure 5 It is a schematic structural diagram of the reinforcing bolt in the embodiment of the present invention.

[0015] Reference numerals: 1, steel truss beam; 2, upper holding rod; 3, lower holding rod; 4, locking fastener; 5, locking screw; 6, rotating base; 7, suspension rod; 8, bottom support crossbar; 9, locking long hole; 10, fixed lock 1; 11, locking lock 1; 12, locking lock 2; 13, fixed lock 2; 14, nut; 15, locking nut 2; 16, locking nut 1; 17, fixed nut; 18, connecting plate; 19, base bolt; 20, pin connecting ear plate; 21, connecting hole; 22, pin; 23, pipeline; 24, outward-tilting lock surface; 25, lock extrusion surface; 26, adapter sleeve; 27, reinforcing bolt; 28, rectangular block; 29, limiting sliding support; 30, limiting crossbar. Detailed implementation manners

[0016] The technical solution of the present invention will be described in detail below through embodiments. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, rather than being construed as a limitation to the technical solution of the present invention.

[0017] Combined with Figures 1-5 , a support and hanger structure for a large-span and high-overhang inclined steel truss is installed on the steel truss beam 1, and includes an upper holding rod 2, a lower holding rod 3, a locking fastener 4, a locking screw 5, a rotating base 6, a suspension rod 7, and a bottom support crossbar 8; The upper holding rod 2 is arranged at the top of the steel truss beam 1 and both ends extend beyond the steel truss beam 1, showing an inclined shape matching the steel truss beam 1. The upper holding rod 2 is in a square tube shape and has a lock area with inward concavities at the four corners of the cross-section of the upper holding rod 2. A locking long hole 9 extending along the length direction is opened at the bottom end of the upper holding rod 2; The lower holding rod 3 is arranged at the bottom of the steel truss beam 1 and both ends extend beyond the steel truss beam 1, showing an inclined shape matching the steel truss beam 1. The lower holding rod 3 is in a square tube shape and has a lock area with inward concavities at the four corners of the cross-section of the lower holding rod 3. A locking long hole 9 extending along the length direction is opened at the top end of the lower holding rod 3; The locking fastener includes a fixed locking buckle one 10 located at the top of the upper holding rod 2 and a locking buckle one 11 located at the bottom of the upper holding rod 2 respectively provided at both ends of the upper holding rod 2, and a locking buckle two 12 located at the top of the lower holding rod 3 and a fixed locking buckle two 13 located at the bottom of the lower holding rod 3 respectively provided at both ends of the lower holding rod 3. The fixed locking buckle one 10 is C-shaped and buckles downward on the top of the upper holding rod 2. The two side edges of the fixed locking buckle one 10 and the locking buckle one 11 are respectively located in the buckle area of the upper holding rod 2. The two side edges of the fixed locking buckle two 13 and the locking buckle two 12 are respectively located in the buckle area of the lower holding rod 3. A long hole for passing through the rotating base 6 is opened at the bottom end of the lower holding rod 3; The locking screw rod 5 passes through the fixed locking buckle two 13, the lower holding rod 3, the locking buckle two 12, the locking buckle one 11, the upper holding rod 2 and the fixed locking buckle one 10 in sequence from bottom to top. The nut 14 of the locking screw rod 5 is located at the bottom of the lower holding rod 3. A locking nut two 15 located at the top end of the locking buckle two 12, a locking nut one 16 located at the bottom end of the locking buckle one 11 and a fixing nut 17 located at the top end of the fixed locking buckle one 10 are threadedly connected on the locking screw rod 5; The rotating base 6 includes a connecting plate 18 located at the bottom end of the lower holding rod 3, a base bolt 19 connecting the connecting plate 18 and the lower holding rod 3, and a pin-connected ear plate 20 integral with the connecting plate 18. Two pin-connected ear plates 20 are arranged at intervals; The hanging rod 7 is provided with a plurality of connecting holes 21. The top end is hinged to the two pin-connected ear plates 20 by a pin 22 and is vertical; The bottom support cross arm 8 is fixedly connected to the bottom end of the hanging rod 7 and is used for carrying the pipeline 23.

[0018] As a preferred solution of this embodiment, the surfaces of the two sides of the bottom end of the upper holding rod 2 that cooperate with the locking buckle one 11 are outwardly inclined outer inclined buckle surfaces 24. The inner sides of the two side edges of the locking buckle one 11 are buckle extrusion surfaces 25 that cooperate with the outer inclined buckle surfaces 24. The surfaces of the two sides of the top end of the lower holding rod 3 that cooperate with the locking buckle two 12 are outwardly inclined outer inclined buckle surfaces 24. The inner sides of the two side edges of the locking buckle two 12 are buckle extrusion surfaces 25 that cooperate with the outer inclined buckle surfaces 24.

[0019] As a preferred solution of this embodiment, a transition sleeve 26 is arranged on the outer side of the top end of the hanging rod 7. The pin 22 passes through the two pin-connected ear plates 20, the transition sleeve 26 and the hanging rod 7. The transition sleeve 26 and the hanging rod 7 are also connected by two reinforcing bolts 27.

[0020] As a preferred solution of this embodiment, the connecting holes 21 are rectangular holes. A rectangular block 28 that cooperates with the rectangular holes is arranged in the middle of the reinforcing bolt 27. The thickness of the rectangular block 28 is less than the thickness of the hanging rod 7 and can be inserted without rotation, which is convenient for construction.

[0021] As a preferred solution of this embodiment, an upwardly curved limiting sliding support 29 is further fixedly connected to the top of the bottom support cross arm 8. Both ends of the limiting sliding support 29 are fixed to the hanging rod 7 to reinforce the stability of the pipeline 23.

[0022] As a preferred solution of this embodiment, a limiting cross arm 30 is further arranged at the top of the pipeline 23. Both ends of the limiting cross arm 30 are respectively fixed to the two hanging rods 7 to reinforce the stability of the pipeline 23.

[0023] The construction method of this embodiment includes the following steps. Step 1: Deepening design, including BIM pipe comprehensive layout, pipe comprehensive checking, mold matching with Tekla model, model checking, deepening layout of adjustable-angle prefabricated pipe supports and hangers, force calculation, and determining the specifications of pipe support and hanger components. Step 2: Measuring and checking, including measuring and positioning the steel truss that has been slid and positioned in place, marking the center of the positioning point, and checking the point position. Step 3: Material preparation and processing: including the upper holding rod 2, the lower holding rod 3, the locking fastener 4, and the rotating base 6. Step 4: Hoop installation: The construction workers align the centers of the upper holding rod 2 and the lower holding rod 3 with the marked and rechecked central cross mark, pass the locking screw 5 from bottom to top, and then tighten the second locking nut 15, the first locking nut 16, and the fixing nut 17. Step 5: Ground assembly: Fix the bottom support cross arm 8 and the hanging rod 7, then sleeved the adapter sleeve 26 on the hanging rod 7, and fix the adapter sleeve 26 and the hanging rod 7 through the reinforcement bolt 27. Step 6: Lift the whole and connect the hanging rod 7, the adapter sleeve, and the pin-connected ear plate 20 with the pin 22. Step 7: Pipeline 23 installation: After the pipe support and hanger pass the acceptance, install the limiting sliding support 29, then install the pipeline 23, and finally install the limiting cross arm 30.

[0024] In this embodiment, a support hanger is arranged on an inclined steel truss for a steel pipe with a large longitudinal span, a large diameter and a high elevation. The means adopted are as follows: 1) A system of an upper holding rod 2, a lower holding rod 3, a locking fastener 4 and a locking screw rod 5 is designed for the inclined steel truss beam 1, which can be firmly fixed on the steel truss beam 1, ensuring the structural strength of the root; 2) There are notches at the locking long holes 9 on the upper holding rod 2 and the lower holding rod 3. Through the cooperation of the outward-inclined locking surface 24 and the locking extrusion surface 25, after locking, the upper holding rod 2 and the lower holding rod 3 can form a holding force with the steel structure beam at the position of the notch, making the overall structure more firm; 3) A transition sleeve is arranged between the suspender 7 and the pin-connected ear plate 20. The pin 22 fixes the three of them and then the transition sleeve and the suspender 7 are fixed through the reinforcing bolt 27, so that the joint part of the suspender 7 has very high joint strength, ensuring the strength requirements for a large span and high elevation; Through the cooperation of the above three means, the structural strength of the support hanger arranged on the inclined steel truss for a steel pipe with a large longitudinal span, a large diameter and a high elevation is realized under the condition that the verticality of the suspender 7 needs to be ensured. The suspender 7 can be rotated to the vertical direction through the pin connection of the rotating base 6. Compared with the current construction method, 1) The negative impact caused by changing the stress state of the steel truss by welding after the steel truss is slid into place is avoided, and the problem that the suspender 7 cannot be vertically rooted is successfully solved; 2) The overall processing and manufacturing cycle of the traditional method of welding the ordinary section steel to the steel truss for rooting is long. When welding the root of the hanger, high requirements are imposed on the technical level, physical fitness of the welding personnel and environmental factors, and it is difficult to ensure the welding quality. The welding quality has a great influence on the vertical bearing capacity of the support hanger, and the safety and reliability of high-altitude welding operations are poor; 3) A system of an upper holding rod, a lower holding rod, a locking fastener and a locking screw rod is designed for the inclined steel truss beam, which can be firmly fixed on the steel truss beam, ensuring the structural strength of the root; There are notches at the locking long holes on the upper holding rod and the lower holding rod, making the overall structure more firm; A transition sleeve is arranged between the suspender and the pin-connected ear plate. The pin fixes the three of them and then the transition sleeve and the suspender are fixed through the reinforcing bolt, so that the joint part of the suspender not only has very high joint strength, ensuring the strength requirements for a large span and high elevation, but also has adjustable angle; 4) The innovative application of the construction method of the adjustable-angle assembled support hanger in this project shortens the node construction period of this part from the original planned 60 days to 45 days, and reduces the labor employment from the original planned 240 man-days to 90 man-days, saving a large amount of costs.

[0025] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A large-span, high-altitude inclined steel truss upper support and hanger structure, characterized by: It is installed on a steel truss beam (1), and comprises an upper holding rod (2), a lower holding rod (3), a locking member (4), a locking screw (5), a rotating base (6), a hanging rod (7) and a bottom supporting cross arm (8); An upper holding rod (2) is arranged on the top of the steel truss beam (1) and has two ends extending beyond the steel truss beam (1) and is in an inclined shape matching the steel truss beam (1). The upper holding rod (2) is in a square tube shape and the four corners of the cross section of the upper holding rod (2) are all concave locking areas. The bottom end of the upper holding rod (2) is provided with a locking long hole (9) extending along the length direction. The lower holding rod (3) is arranged at the bottom of the steel truss beam (1) and has two ends extending beyond the steel truss beam (1) and is in an inclined shape matching the steel truss beam (1). The lower holding rod (3) is in a square tube shape and the four corners of the cross section of the lower holding rod (3) are all concave locking areas. The top end of the lower holding rod (3) is provided with a locking long hole (9) extending along the length direction. The locking member comprises a fixed locking buckle (10) and a locking locking buckle (11) located at the bottom of the upper holding rod (2), which are respectively arranged at two ends of the upper holding rod (2), and a locking locking buckle (12) and a fixed locking buckle (13) located at the top of the lower holding rod (3) and are respectively arranged at two ends of the lower holding rod (3). The fixed locking buckle (10) is C-shaped and buckled downward on the top of the upper holding rod (2). The two side edges of the fixed locking buckle (10) and the locking locking buckle (11) are respectively located in the locking area of ​​the upper holding rod (2). The two side edges of the fixed locking buckle (13) and the locking locking buckle (12) are respectively located in the locking area of ​​the lower holding rod (3). The bottom end of the lower holding rod (3) is provided with a through hole for connecting to a rotating base (6). The locking screw (5) passes through the second fixing lock buckle (13), the lower holding rod (3), the second locking lock buckle (12), the first locking lock buckle (11), the upper holding rod (2) and the first fixing lock buckle (10) in sequence from bottom to top; the nut (14) of the locking screw (5) is located at the bottom of the lower holding rod (3); the locking screw (5) is threadedly connected with the second locking nut (15) located at the top of the second locking lock buckle (12), the locking nut (16) located at the bottom of the first locking lock buckle (11) and the fixing nut (17) located at the top of the first fixing lock buckle (10); The rotating base (6) comprises a connecting plate (18) located at the bottom end of the lower holding rod (3), a base bolt (19) connecting the connecting plate (18) to the lower holding rod (3), and a pin-jointed ear plate (20) integral with the connecting plate (18), wherein two pin-jointed ear plates (20) are arranged at intervals; A suspension rod (7) is provided with a plurality of connection holes (21), and the top end of the suspension rod (7) is hingedly connected to two pin-jointed ear plates (20) through a pin (22) and is vertically oriented; The bottom supporting cross arm (8) is fixedly connected to the bottom end of the suspension rod (7) and is used to carry the pipeline (23).

2. The large-span, high-altitude inclined steel truss upper support and hanger structure according to claim 1 is characterized by: The surfaces on both sides of the bottom end of the upper holding rod (2) that cooperate with the locking buckle 1 (11) are outwardly inclined outwardly inclined locking buckle surfaces (24), and the inner sides of the two side edges of the locking buckle 1 (11) are locking buckle extrusion surfaces (25) that cooperate with the outwardly inclined locking buckle surfaces (24). The surfaces on both sides of the top end of the lower holding rod (3) that cooperate with the locking buckle 2 (12) are outwardly inclined outwardly inclined locking buckle surfaces (24), and the inner sides of the two side edges of the locking buckle 2 (12) are locking buckle extrusion surfaces (25) that cooperate with the outwardly inclined locking buckle surfaces (24).

3. The large-span, high-altitude inclined steel truss upper support and hanger structure according to claim 2 is characterized by: An adapter sleeve (26) is arranged on the outer side of the top end of the suspension rod (7), and the pin (22) passes through two pin-jointed ear plates (20), the adapter sleeve (26) and the suspension rod (7), and the adapter sleeve (26) and the suspension rod (7) are also connected by two reinforcing bolts (27).

4. The large-span, high-altitude inclined steel truss upper support and hanger structure according to claim 3 is characterized by: The connection hole (21) is a rectangular hole, and a rectangular block (28) matching the rectangular hole is arranged in the middle of the reinforcement bolt (27), and the thickness of the rectangular block (28) is smaller than the thickness of the suspension rod (7).

5. The large-span, high-altitude inclined steel truss upper support and hanger structure according to claim 4 is characterized by: The top of the bottom supporting cross arm (8) is also fixedly connected with an upwardly directed arc-shaped limiting slide support (29), and both ends of the limiting slide support (29) are fixed on the suspension rod (7).

6. The large-span, high-altitude inclined steel truss upper support and hanger structure according to claim 5 is characterized by: A limit cross arm (30) is also provided on the top of the pipeline (23), and the two ends of the limit cross arm (30) are respectively fixed on two suspension rods (7).

7. The construction method of a large-span, high-altitude inclined steel truss upper support and hanger structure according to any one of claims 1 to 6, characterized in that: The following steps are included: Step 1: Deepen the design, including BIM pipe layout, pipe verification, model matching with Tekla model, model verification, in-depth layout of adjustable angle assembled supports and hangers, force calculation, and determination of support and hanger component specifications; Step 2: Measurement and verification, including measurement and positioning of the slid-in-place steel trusses, center marking of positioning points, and point verification; Step 3: Material preparation and processing: including an upper holding rod (2), a lower holding rod (3), a locking member (4), and a rotating base (6); Step 4: Installation of the clamp: The construction worker aligns the center of the upper clamp (2) and the lower clamp (3) with the marked and verified center cross mark, inserts the locking screw (5) from bottom to top, and then tightens the locking nut 2 (15), the locking nut 1 (16) and the fixing nut (17); Step 5: Ground assembly: fix the bottom support cross arm (8) and the suspension rod (7), then put the adapter sleeve (26) on the suspension rod (7), and fix the adapter sleeve (26) and the suspension rod (7) by reinforcing bolts (27); Step 6: Lift the whole and connect the suspension rod (7), the adapter sleeve and the pin-jointed ear plate (20) with the pin (22); Step 7, installation of pipeline (23): After the support and hanger are accepted, install the limit slide (29), then install the pipeline (23), and finally install the limit cross arm (30).

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