Large-span steel structure corridor sliding assembly construction technology

Abstract

The invention relates to a large-span steel structure corridor sliding assembly construction process, and aims to solve the problems of high difficulty, low efficiency, difficulty in dismounting an auxiliary structure and the like in large-span steel structure corridor construction by a traditional hoisting method. According to the process, mounting of a longitudinal triangular truss, a middle shaft small truss and an outrigger is completed by assembling a door-type steel truss column truss on the ground or a roof, mounting a sliding rail and assembling a truss beam and the door-type steel truss. And the assembled door-type steel truss combination slides, the steps are repeated on the two sides, and finally the two-large-area steel structure corridor formed by assembling seven door-type steel trusses is formed. According to the process, the Z-shaped sliding rails and the detachable rollers are adopted, so that all mounting auxiliary parts can be independently separated from the truss structure after the structure is mounted, the construction efficiency is improved, the cost is reduced, and the aesthetic property and the functionality of the structure are ensured. The technology is suitable for rapid and efficient construction of the large-span steel structure corridor and has remarkable economic benefits and social benefits.

Description

Technical Field

[0001] The present invention relates to the technical field of aerial corridor structures, and in particular to a sliding assembly construction process for a large-span steel structure corridor. Background Art

[0002] In modern construction projects, large-span steel structure corridors are widely used due to their structural stability and span advantages. The traditional construction method of large-span steel structure corridors mainly relies on heavy lifting equipment for hoisting operations. This method has the following limitations:

[0003] Lifting is difficult: For large-span steel structure corridors, traditional lifting methods require large lifting machinery during the construction process, which not only increases construction costs, but also places high demands on the space and environment of the construction site, limiting construction flexibility.

[0004] Low construction efficiency: Hoisting operations are affected by many factors such as weather and site conditions, making construction efficiency difficult to guarantee. Especially in complex or restricted construction environments, the efficiency and safety of hoisting operations are difficult to effectively control.

[0005] Auxiliary structures are difficult to dismantle: In traditional sliding assembly methods, auxiliary structures such as sliding tracks and rollers often need to be retained as part of the permanent structure, which not only affects the aesthetics of the structure, but also increases the weight of the structure and reduces its bearing capacity.

[0006] Installation auxiliary parts are difficult to remove: In traditional construction methods, auxiliary parts such as rollers are difficult to remove after the structure is installed. This not only increases the difficulty of subsequent maintenance, but also affects the overall performance of the structure. Summary of the Invention

[0007] In response to the above problems, the present invention proposes a sliding assembly construction process for a large-span steel structure corridor, which aims to solve the deficiencies in the existing technology, improve construction efficiency, reduce construction costs, and ensure the aesthetics and functionality of the structure through innovative construction technology. This process achieves efficient and safe construction of a large-span steel structure corridor through the steps of ground or roof assembly, sliding track installation, truss beam assembly, portal steel truss assembly, longitudinal triangular truss and central axis small truss, and cantilever beam installation. In particular, the design of the Z-shaped sliding track and detachable rollers adopted in the present invention enables all installation auxiliary parts to be independently separated from the truss structure after the structure is installed, greatly improving the convenience of disassembly of the auxiliary parts, while also ensuring the aesthetics and bearing capacity of the structure. The present invention is implemented using the following technical solutions:

[0008] A sliding assembly construction process for a long-span steel structure corridor. The steel structure corridor is a steel truss membrane structure. The middle part of the length direction is broken into two large sections, one on the left and the other on the right. Each large section is assembled from seven portal steel trusses and installed on the steel plates embedded in the roof column base. Removable rollers are installed at the column base of the portal steel trusses, and removable sliding tracks are provided on the roof to limit the movement of the rollers. The process includes the following steps:

[0009] Step 1: Column truss assembly: Assemble the column truss of the portal steel truss on the ground or roof;

[0010] Step 2: Sliding track installation: Install the two sliding tracks on the roof mounting frame through embedded bolts. The two sliding tracks pass through all the embedded column foot steel plates on both sides.

[0011] Step 3: Assemble the truss beam: Assemble the truss beam on the tire frame;

[0012] Step 4: Assembling the portal steel truss;

[0013] Step 5: Install the longitudinal triangular trusses, central axis small trusses and cantilever beams between the truss beams;

[0014] Step 6: Slide the assembled portal steel truss assembly and start assembling the next two portal steel trusses;

[0015] Step 7: After completion, assemble the longitudinal small trusses and caps between the portal steel trusses;

[0016] Step 8: Similarly, a large steel structure corridor composed of seven portal steel trusses is formed on one side;

[0017] Step 9: Follow steps 1 to 8 to complete the installation, sliding, and connection of a large steel structure corridor on the other side, which is composed of seven portal steel trusses.

[0018] Step 10: Install and tension the membrane material, then remove the sliding track first, and then remove the rollers at the column base to complete the installation of the membrane structure, forming two large steel truss membrane structures.

[0019] Furthermore, the sliding track includes a bottom plate and a top plate parallel to each other, a vertical plate is vertically arranged between the bottom plate and the top plate, the bottom edge and the top edge of the vertical plate are respectively welded to one side of the bottom plate and the top plate to form a Z shape, and the bottom plate is connected to the ground by embedded bolts, and the top plate and the vertical plate form a track space for limiting the movement of the roller; the roller is a single-sided roller, which is arranged on the outside of the column foot and embedded in the track space formed by the top plate and the vertical plate.

[0020] Furthermore, the assembly of the portal steel truss in step four includes the following steps: first, the column trusses on both sides are respectively installed in the sliding tracks on both sides, and detachable rollers are installed at the bottom of the column trusses, and then the truss beam is raised by a hydraulic jacking device, and the column trusses on both sides are slid to the two ends of the truss beam, and then the truss beam is slowly lowered by the hydraulic jacking device until the bottom of the truss beam contacts the top of the column truss, and the truss beam is welded to the column truss. After acceptance, the hydraulic jacking device is removed.

[0021] Furthermore, the installation of the longitudinal triangular trusses, the central axis small trusses and the cantilever beams between the truss beams in step five includes the following steps: assembling the longitudinal triangular trusses, the central axis small trusses and the cantilever beams for connecting the portal steel trusses on the ground or roof; after the assembly is completed, welding the two ends of the two longitudinal triangular trusses to the two ends of the truss beams of the two adjacent portal steel trusses, and the two longitudinal triangular trusses are parallel to each other; then, the two ends of the central axis small trusses are connected to the middle of the truss beams of the two adjacent portal steel trusses; finally, welding the two ends of the cantilever beam to the two ends of the truss beams of the two adjacent portal steel trusses to form a portal steel truss combination.

[0022] Furthermore, the sliding of the assembled portal steel truss combination in step six and the start of assembling the next two portal steel trusses include the following steps: sliding the assembled portal steel truss combination to the designed position so that its column base coincides with the corresponding embedded column base steel plate, and after confirming that the installation position is the same as the designed position, welding the column base and the embedded column base steel plate to each other, and starting to assemble the next two portal steel trusses.

[0023] Furthermore, after the completion of step seven, the assembly of the longitudinal small trusses and cap heads between the portal steel trusses includes the following steps: two longitudinal small trusses are set between the truss beams of two adjacent portal steel trusses, and the longitudinal small trusses are connected by four connecting rods, and one end of each of the four connecting rods is welded to the same-side end points of the two truss beams and the two end points of the central axis small truss, and the other end of each of the four connecting rods is welded to each other at a fixed point, which is at the center point of the quadrilateral formed by the same-side end points of the two truss beams and the two end points of the central axis small truss, and the cap head is vertically welded to the fixed point.

[0024] The sliding assembly construction process of a large-span steel structure corridor of the present invention has the following significant beneficial effects:

[0025] This construction process can completely abandon the traditional lifting means, greatly reducing the difficulty of splicing large-span steel structure corridors; in addition, the traditional sliding assembly means cannot remove the sliding track. When the truss is slid, the sliding track can only be permanently retained as a part of the truss structure, which not only affects the appearance, but also increases the overall burden of the truss, resulting in a decrease in its bearing capacity. The Z-shaped sliding track of the present invention can not only serve as a limiting track for the sliding assembly of the truss, but can also be removed after the sliding assembly of the truss is completed. At the same time, its detachable rollers are connected between the column feet and the pre- After the embedded column base steel plate welding connection is stable, it can also be removed together, that is, all the installation auxiliary parts can be independently separated from the truss structure, so that the entire large-span steel structure corridor can fully meet the design requirements, greatly improving the installation efficiency of the large-span steel structure corridor; furthermore, the setting of the single-sided roller can not only provide sufficient welding space for the column base and the embedded column base steel plate, but also can remove the roller shaft on the side of the column base where the roller is not set, so as to facilitate the removal of the roller after the sliding track is removed. The disassembly is very convenient, which greatly improves the convenience of disassembly of the auxiliary parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the steel structure corridor of the present invention.

[0028] Figure 2 It is a schematic diagram of the sliding structure of the portal steel truss of the present invention.

[0029] Figure 3 Schematic diagram of the sliding track of the present invention.

[0030] Figure 4 It is a schematic diagram of assembling the truss beam of the present invention.

[0031] Figure 5 This is a schematic diagram of assembling the portal steel truss of the present invention.

[0032] Figure 6 This is a schematic diagram of the installation of the longitudinal triangular trusses, the central axis small trusses and the cantilever beams between the truss beams of the present invention.

[0033] Figure 7 It is a schematic diagram of welding the column base and the embedded column base steel plate of the present invention.

[0034] Figure 8 This is a schematic diagram of a single-sided steel structure corridor of the present invention.

[0035] Figure 9 This is a schematic diagram of the steel truss membrane structure of the present invention.

[0036] Description of reference numerals:

[0037] 100-Gateway steel truss, 101-Embedded column foot steel plate, 102-Roller, 103-Sliding track, 104-Column truss, 105-Embedded bolts, 106-Truss beam, 107-Longitudinal triangular truss, 108-Central axis small truss, 109-Cantilever beam, 110-Longitudinal small truss, 111-Cap head, 112-Bottom plate, 113-Top plate, 114-Vertical plate. DETAILED DESCRIPTION

[0038] The following description of the embodiments will help the public better understand the present invention, but the specific embodiments given by the applicant cannot and should not be regarded as limitations on the technical solutions of the present invention. Any changes to the definitions of components or technical features, or formal rather than substantive changes to the overall structure should be regarded as the scope of protection defined by the technical solutions of the present invention.

[0039] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," and "fixed" should be interpreted broadly. For example, these terms may refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; internal communication between two components; surface contact only; or surface contact through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0040] Example 1:

[0041] See also Figure 1 and Figure 2A sliding assembly construction process for a large-span steel structure corridor. The steel structure corridor is a steel truss membrane structure. The middle part of the length direction is broken and divided into two large pieces on the left and right. Each large piece is assembled by seven portal steel trusses 100 and installed on the pre-buried column foot steel plate 101 on the roof. Removable rollers 102 are installed at the column foot of the portal steel truss 100. Removable sliding tracks 103 are set on the roof to limit the movement of the rollers 102. The sliding tracks 103 are used to limit the movement of the rollers 102. 3 includes a bottom plate 112 and a top plate 113 parallel to each other, a vertical plate 114 is vertically arranged between the bottom plate 112 and the top plate 113, the bottom edge and the top edge of the vertical plate 114 are welded to one side of the bottom plate 112 and the top plate 113 respectively to form a Z shape, and the bottom plate 112 is connected to the ground by embedded bolts 105, and the top plate 113 and the vertical plate 114 form a track space to limit the movement of the roller 102; the roller 102 is a single-sided roller. The wheel 102 is arranged on the outside of the column foot and embedded in the track space formed by the top plate 113 and the vertical plate 114. The above arrangement can not only serve as a limiting track for the sliding assembly of the truss, but also can be removed after the sliding assembly of the truss is completed. At the same time, its detachable roller 102 can also be removed together after the column foot and the embedded column foot steel plate 101 are welded and stabilized, that is, all the installation auxiliary parts can be independently separated from the truss structure, so that the entire long-span steel structure corridor can fully meet the design requirements, greatly improving the installation efficiency of the long-span steel structure corridor; furthermore, the arrangement of the unilateral roller 102 can not only provide sufficient welding space for the column foot and the embedded column foot steel plate 101, but also can remove the rotating shaft of the roller 102 on the side of the column foot where the roller 102 is not arranged, thereby facilitating the removal of the roller 102 after the sliding track 103 is removed, and the disassembly is very convenient, which greatly improves the convenience of disassembly of the auxiliary parts; comprising the following steps:

[0042] Step 1: Assembling the column truss 104: Assembling the column truss 104 of the portal steel truss 100 on the ground or roof;

[0043] Step 2: See Figure 3 , Installation of sliding rails 103: Install the two sliding rails 103 on the installation frame of the roof through the embedded bolts 105 respectively, and the two sliding rails 103 pass through all the embedded column foot steel plates 101 on both sides respectively;

[0044] Step 3: See Figure 4 , assembling the truss beam 106: assembling the truss beam 106 on the tire frame;

[0045] Step 4: See Figure 5, assemble the portal steel truss 100: first install the column trusses 104 on both sides into the sliding tracks 103 on both sides respectively, and install detachable rollers 102 at the bottom of the column trusses 104, then raise the truss beam 106 through the hydraulic jacking device, slide the column trusses 104 on both sides to the two ends of the truss beam 106, and then slowly lower the truss beam 106 through the hydraulic jacking device until the bottom of the truss beam 106 contacts the top of the column truss 104, weld the truss beam 106 to the column truss 104, and remove the hydraulic jacking device after acceptance.

[0046] Step 5: See Figure 6 , installation of the longitudinal triangular trusses 107, the central axis small trusses 108 and the cantilever beams 109 between the truss beams 106: assemble the longitudinal triangular trusses 107, the central axis small trusses 108 and the cantilever beams 109 for connection between the portal steel trusses 100 on the ground or roof. After the assembly is completed, the two ends of the two longitudinal triangular trusses 107 are respectively welded to the two ends of the truss beams 106 of the two adjacent portal steel trusses 100. The two longitudinal triangular trusses 107 are parallel to each other, and then the two ends of the central axis small trusses 108 are respectively connected to the middle parts of the truss beams 106 of the two adjacent portal steel trusses 100. Finally, the two ends of the cantilever beam 109 are respectively welded to the two ends of the truss beams 106 of the two adjacent portal steel trusses 100 to form a portal steel truss 100 combination;

[0047] Step 6: See Figure 7 , slide the assembled portal steel trusses 100 and start assembling the next two portal steel trusses 100: slide the assembled portal steel trusses 100 to the designed position so that the column feet coincide with the corresponding pre-buried column foot steel plates 101. After confirming that the installation position is the same as the designed position, weld the column feet and the pre-buried column foot steel plates 101 to each other, and start assembling the next two portal steel trusses 100;

[0048] Step 7: See Figure 6 , after completion, assemble the longitudinal small trusses 110 and cap heads 111 between the portal steel trusses 100: set two longitudinal small trusses 110 between the truss beams 106 of two adjacent portal steel trusses 100, and the longitudinal small trusses 110 are connected by four connecting rods, and one end of each of the four connecting rods is welded to the same-side end points of the two truss beams 106 and the two end points of the central axis small truss 108, and the other ends of each of the four connecting rods are welded to each other at a fixed point, which is the center point of the quadrilateral formed by the same-side end points of the two truss beams 106 and the two end points of the central axis small truss 108, and the cap head 111 is vertically welded to the fixed point;

[0049] Step 8: See Figure 8 , and so on, forming a large steel structure corridor on one side which is assembled by seven portal steel trusses 100;

[0050] Step 9: See Figure 1 According to steps 1 to 8, the installation, sliding and connection process of a large steel structure corridor on the other side, which is assembled by seven portal steel trusses 100, is completed;

[0051] Step 10: See Figure 9 , the membrane material is installed and tensioned, and then the sliding track 103 is removed first, and then the roller 102 of the column foot is removed to complete the installation of the membrane structure, forming two large steel truss membrane structures.

[0052] Those skilled in the art should understand that they can implement variations by combining the prior art with the above embodiments, which will not be described in detail here. Such variations do not affect the essence of the present invention and will not be described in detail here.

[0053] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-mentioned disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solutions of the present invention, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solutions of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims

1. A sliding assembly construction process for a large-span steel structure corridor, wherein the steel structure corridor is a steel truss membrane structure, the middle portion of the length direction is disconnected and divided into two large pieces on the left and right, each large piece is assembled from seven portal steel trusses (100), and is installed on a pre-buried column foot steel plate (101) on the roof, detachable rollers (102) are installed at the column foot of the portal steel trusses (100), and detachable sliding tracks (103) are provided on the roof to limit the movement of the rollers (102), characterized in that: The following steps are involved: Step 1: Assembling the column truss (104): Assembling the column truss (104) of the portal steel truss (100) on the ground or roof; Step 2: Installation of the sliding rails (103): Install the two sliding rails (103) on the installation frame of the roof through the embedded bolts (105), and the two sliding rails (103) pass through all the embedded column foot steel plates (101) on both sides respectively; Step 3: Assembling the truss beam (106): Assembling the truss beam (106) on the tire frame; Step 4: Assembling the portal steel truss (100); Step 5: Install the longitudinal triangular truss (107) and the central axis small truss (108) and the cantilever beam (109) between the truss beams (106); Step 6: Slide the assembled portal steel trusses (100) and start assembling the next two portal steel trusses (100); Step 7: After completion, assemble the longitudinal small trusses (110) and caps (111) between the portal steel trusses (100); Step 8: Similarly, a large steel structure corridor is formed on one side, which is assembled by seven portal steel trusses (100); Step 9: According to steps 1 to 8, complete the installation, sliding and connection process of a large steel structure corridor on the other side, which is assembled from seven portal steel trusses (100); Step 10: Install and tension the membrane material, then remove the sliding track (103) first, then remove the roller (102) of the column foot, and complete the membrane structure installation to form two large steel truss membrane structures.

2. The sliding assembly construction process for a large-span steel structure corridor according to claim 1 is characterized in that: The sliding track (103) includes a bottom plate (112) and a top plate (113) parallel to each other, a vertical plate (114) is vertically arranged between the bottom plate (112) and the top plate (113), the bottom edge and the top edge of the vertical plate (114) are respectively welded to one side of the bottom plate (112) and the top plate (113) to form a Z shape, and the bottom plate (112) is connected to the ground through embedded bolts (105), and the top plate (113) and the vertical plate (114) form a track space for limiting the movement of the roller (102); the roller (102) is a single-sided roller (102), which is arranged on the outside of the column foot and embedded in the track space formed by the top plate (113) and the vertical plate (114).

3. The sliding assembly construction process for a large-span steel structure corridor according to claim 1 is characterized in that: The assembly of the portal steel truss (100) in step 4 includes the following steps: first, the column trusses (104) on both sides are respectively installed in the sliding tracks (103) on both sides, and detachable rollers (102) are installed at the bottom of the column trusses (104), and then the truss beam (106) is raised by a hydraulic jacking device, and the column trusses (104) on both sides are slid to the two ends of the truss beam (106), and then the truss beam (106) is slowly lowered by the hydraulic jacking device until the bottom of the truss beam (106) contacts the top of the column truss (104), and the truss beam (106) is welded to the column truss (104). After acceptance, the hydraulic jacking device is removed.

4. The sliding assembly construction process for a large-span steel structure corridor according to claim 1 is characterized in that: The longitudinal triangular truss (107), the central axis small truss (108) and the cantilever beam (109) between the truss beams (106) of step five are installed. The invention comprises the following steps: assembling a longitudinal triangular truss (107), a central axis small truss (108) and a cantilever beam (109) for connecting the portal steel trusses (100) on the ground or the roof; after the assembly is completed, welding the two ends of the two longitudinal triangular trusses (107) to the two ends of the truss beams (106) of the two adjacent portal steel trusses (100), so that the two longitudinal triangular trusses (107) are parallel to each other; then, connecting the two ends of the central axis small truss (108) to the middle parts of the truss beams (106) of the two adjacent portal steel trusses (100); and finally, welding the two ends of the cantilever beam (109) to the two ends of the truss beams (106) of the two adjacent portal steel trusses (100) to form a portal steel truss (100) combination.

5. The sliding assembly construction process for a large-span steel structure corridor according to claim 1 is characterized in that: The step six of sliding the assembled portal steel truss (100) combination and starting to assemble the next two portal steel trusses (100) includes the following steps: sliding the assembled portal steel truss (100) combination to the designed position so that its column foot coincides with the corresponding pre-buried column foot steel plate (101); after confirming that the installation position is the same as the designed position, welding the column foot and the pre-buried column foot steel plate (101) to each other, and starting to assemble the next two portal steel trusses (100).

6. The sliding assembly construction process for a large-span steel structure corridor according to claim 1 is characterized in that: After the completion of step seven, the assembly of the longitudinal small trusses (110) and the caps (111) between the portal steel trusses (100) includes the following steps: two longitudinal small trusses (110) are set between the truss beams (106) of two adjacent portal steel trusses (100), and the longitudinal small trusses (110) are connected by four connecting rods, and one end of each of the four connecting rods is welded to the same-side end points of the two truss beams (106) and the two end points of the central axis small truss (108), and the other ends of each of the four connecting rods are welded to each other at a fixed point, which is the center point of a quadrilateral formed by the same-side end points of the two truss beams (106) and the two end points of the central axis small truss (108), and the caps (111) are vertically welded to the fixed point.

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