Single-layer ellipsoidal reticulated shell dome sliding device

Abstract

The utility model relates to the technical field of steel structure roof pavement, and particularly discloses a single-layer ellipsoidal reticulated shell dome sliding device which comprises a temporary support unit, a sliding unit and a sliding support, the temporary support unit is vertically arranged on the ground in the sliding direction, and the top face of the temporary support unit is flush and used for being in lap joint with the sliding unit; the sliding unit comprises a sliding rail, a sliding beam, a hydraulic crawler and a rail pressing plate, the sliding support is used for bearing the reticulated shell dome from the lower portion and comprises a first supporting truss, a second supporting truss, a plurality of connecting trusses and a bracket, the first supporting truss, the second supporting truss and the bracket respectively comprise a plurality of stand columns, and the top end height of the stand columns is arranged along the radian of the bottom face of the reticulated shell dome. According to the scheme, the problems that an existing single-layer ellipsoidal reticulated shell dome is large in hoisting installation construction difficulty and large in construction period influence can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure roof paving, in particular to a single-layer ellipsoidal lattice shell dome sliding device. Background Art

[0002] With the rapid economic and social development of my country and the increasing investment in national infrastructure, a large number of steel structures are being used in transportation projects. Within these steel structure projects, a large number of glass and metal domes are being constructed. Traditional glass and metal domes require the use of large lifting equipment such as truck cranes and tower cranes for installation and alignment. The construction of single-layer ellipsoidal lattice shell domes presents significant challenges, including the assembly, hoisting, and precise positioning of the steel structure. This is particularly true for the top plane of the single-layer lattice shell, which cannot be installed using conventional methods. Currently, lattice shells are mostly installed by hoisting, a method that is difficult to operate and inconvenient. Furthermore, traditional hoisting can cause collisions with the concrete structure. Furthermore, traditional construction methods require the completion of the substructure before the top surface can be installed, significantly impacting the construction schedule. Therefore, our company has developed a new sliding device specifically for single-layer ellipsoidal lattice shell domes. Utility Model Content

[0003] The utility model provides a single-layer ellipsoidal lattice shell dome sliding device to solve the problems of great difficulty in the existing single-layer ellipsoidal lattice shell dome hoisting installation and construction, and great impact on the construction period.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is as follows: a single-layer ellipsoidal lattice shell dome sliding device, including a temporary support unit, a sliding unit, and a sliding support. The temporary support unit is vertically arranged on the ground along the sliding direction. The top surface of the temporary support unit is flush and used to overlap the sliding unit. The sliding unit includes a sliding track, a sliding beam, a hydraulic crawler, and a track pressure plate. The sliding beam is set up in parallel above the temporary support unit. The sliding track is set up in parallel above the sliding beam through the track pressure plate. The hydraulic crawler is connected between the sliding track and the sliding support. The sliding bracket is used to support the grid shell dome from below. The sliding bracket includes a supporting truss 1, a supporting truss 2, a plurality of connecting trusses, and a bracket. The supporting truss 1 and the supporting truss 2 are arranged in parallel along the width of the grid shell dome. The connecting truss is connected along the length between the supporting trusses 1 and 2. One supporting truss 1 and one supporting truss 2 constitute a supporting portion. The two supporting portions are connected by a bracket. The two supporting portions are symmetrically arranged along the bracket. The supporting trusses 1, 2 and the bracket respectively include a plurality of columns. The top height of the columns is set along the curvature of the bottom surface of the grid shell dome.

[0005] The basic principle of this scheme is: the lattice shell dome is evenly supported by supporting trusses arranged in parallel at intervals along the width direction of the lattice shell dome, and the supporting trusses 1 and 2 are connected into one frame by connecting trusses distributed at intervals along the length of the supporting trusses, and then the two frames are connected by brackets, and the bottom surface of the dome is supported by the columns of the trusses and brackets, and then the sliding bracket is seated on the sliding track, and the sliding bracket is pushed by the hydraulic crawler, so that the sliding bracket as a whole drives the dome to slide on the track to the desired position.

[0006] The beneficial effects of this scheme are as follows: At present, most grid shells are installed by hoisting. This method is difficult to operate and has low convenience. In addition, the traditional construction method requires the completion of the lower structure before the top surface can be installed, which has a great impact on the construction period. This scheme sets a sliding bracket composed of a supporting truss 1, a supporting truss 2, a connecting truss, and a bracket according to the grid shell dome structure. The dome part of the grid shell is supported and slid separately to ensure the stability and integrity of the curved dome during sliding, thereby greatly improving the safety of the roof grid work and the convenience of construction operation.

[0007] Furthermore, the first supporting truss and the second supporting truss each include six columns, and the bracket includes four columns.

[0008] Furthermore, the connecting trusses include connecting truss 1, connecting truss 2, connecting truss 3, and connecting truss 4. Each connecting truss includes two chords arranged horizontally along the height. The two ends of the chords are connected by columns to form a frame. Two webs are arranged at the vertices of the frame. The upper ends of the two webs are connected to the midpoint of the upper chord, and the lower ends of the two webs are connected to the two end points of the lower chord.

[0009] Furthermore, a track pressure plate is provided every 500 mm along the length of the sliding track.

[0010] Furthermore, the temporary support includes temporary support one and temporary support two. Temporary support one is vertically erected on the ground at an elevation of +9.6m, and temporary support two is vertically erected at an elevation of -10.73m. The upper ends of the two temporary supports are flush.

[0011] Furthermore, the supporting trusses, connecting trusses and brackets are all constructed using round tubes.

[0012] Furthermore, four sliding tracks are arranged at intervals along the width direction of the lattice shell dome. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A three-dimensional diagram of a lattice shell dome in an embodiment of the present utility model;

[0014] Figure 2 This is a front view of the lattice shell dome in the embodiment of the present utility model;

[0015] Figure 3 This is a side view schematic diagram of a temporary support unit in an embodiment of the present utility model;

[0016] Figure 4 This is a schematic diagram of sliding in an embodiment of the present utility model;

[0017] Figure 5 This is a schematic diagram of sliding in an embodiment of the present utility model;

[0018] Figure 6 This is a schematic diagram of the hoisting in the embodiment of the utility model;

[0019] Figure 7 This is a schematic diagram of a sliding bracket in an embodiment of the present utility model;

[0020] Figure 8 This is a schematic diagram of a supporting truss 1 in an embodiment of the present utility model;

[0021] Figure 9 This is a schematic diagram of a second supporting truss in an embodiment of the present invention;

[0022] Figure 10 This is a schematic diagram of a connecting truss 1 in an embodiment of the present invention;

[0023] Figure 11 This is a schematic diagram of the second connecting truss in the embodiment of the present utility model;

[0024] Figure 12 This is a schematic diagram of the connecting truss three in the embodiment of the present utility model;

[0025] Figure 13 A schematic diagram of a connecting truss 4 in an embodiment of the present invention;

[0026] Figure 14 A schematic diagram of a bracket in an embodiment of the present utility model;

[0027] Figure 15 This is a top view of the sliding track in the embodiment of the utility model;

[0028] Figure 16 A longitudinal sectional view of the sliding track in an embodiment of the present utility model;

[0029] Figure 17 This is a schematic diagram of a track pressing plate in an embodiment of the present utility model;

[0030] Figure 18 This is a weight diagram of each part of the lattice shell dome in the embodiment of the present utility model; DETAILED DESCRIPTION

[0031] The following is further described in detail through specific implementation methods:

[0032] The figure marks in the drawings of the specification include: temporary support 101, temporary support 2 102, sliding beam 2, sliding track 3, temporary support 4, hydraulic crawler 5, sliding support 6, sliding part 001, lifting part 002, connecting truss 1 71, connecting truss 2 72, connecting truss 3 73, connecting truss 4 74, supporting truss 1 81, supporting truss 2 82, bracket 9, column 111, web 112, chord 1 113, chord 2 114, track pressure plate 12.

[0033] The embodiment is basically as shown in the attached Figure 1 To the attached Figure 18 As shown:

[0034] like Figure 2 As shown, the single-layer ellipsoidal lattice shell dome in this embodiment is an ellipsoidal Phoenix Eye structure, 35 meters high and 100 meters long. It adopts a rib-ring single-layer steel lattice shell structure. The lattice shell rods are mainly welded box steel, with cross-sectional dimensions including B200x150x8, B300x200x20, B500x200x12, B800x300x35, etc. The lattice shell facade is divided into two construction zones: the sliding zone and the hoisting zone. The sliding zone is assembled first, and after sliding to the designed workstation, the hoisting zone is hoisted in sections. The sliding zone blocks weigh approximately 340 tons, and the hoisting zone blocks weigh between 4 tons and 20 tons.

[0035] like Figure 2 As shown, track routes numbered 12 to 15 are separated along the width direction of the lattice shell dome, which are the installation points of the sliding rails in the sliding jacking.

[0036] A single-layer ellipsoidal lattice shell dome sliding device includes a temporary support unit, a sliding unit, and a sliding support 6. The temporary support unit includes a temporary support 101 and a temporary support 102. The temporary support 101 is erected at an elevation of +9.6m on the ground, and the temporary support 102 is erected at an elevation of -10.73m. The tops of the two temporary supports are flush. The two temporary supports form a group. A group of temporary supports is respectively erected on the track routes numbered 12 to 15, so as to meet the support requirements over the width of the entire sliding zone.

[0037] A sliding unit is installed on top of each set of temporary supports. The sliding unit consists of a sliding track 3, a sliding beam 2, a hydraulic crawler 5, a temporary support 4, and a track pressure plate 12. The sliding beam 2 is laid along the track routes 12 to 15, with a sliding track 3 installed above each sliding beam 2. The track length is 60 meters, and the sliding track 3 uses 43 kg hot-rolled steel rails. The sliding track 3 is fixed to the sliding beam 2 by the track pressure plate 12. The sliding track 3 is used to withstand the vertical load during the sliding of the steel structure, provide a reaction point for the crawler, and provide a smooth path in the sliding direction. The temporary support 4 is used to temporarily secure the sliding support 6 during its installation.

[0038] The sliding bracket 6 is arranged according to the shape of the lattice shell structure. The sliding bracket 6 includes a supporting truss 1 81, a supporting truss 2 82, and a connecting truss 1 71, a connecting truss 2 72, a connecting truss 3 73, and a connecting truss 4 74 between the two trusses. Two supporting trusses and four connecting trusses form a frame, and a bracket 9 is connected between the two structures, so that the two structures are symmetrically arranged along the bracket 9 to form a sliding bracket 6 unit.

[0039] Specifically, such as Figures 7 to 14 As shown, support truss 1 (81) and support truss 2 (82) each include six columns 111. Two chords 114 connect adjacent columns 111. Diagonal web members 112 are located between the two central columns 111 and the two end columns 111. The difference between support truss 1 (81) and support truss 2 (82) is that the web members 112 at both ends of support truss 1 (81) are symmetrically arranged along the central axis, while the web members 112 at both ends of support truss 2 (82) are arranged in an upper right-to-lower left direction. Connecting trusses 1 (71) through 4 (71) each include two horizontally arranged chords 114. These two web members 112 connect from the midpoint of the upper chord to the ends of the lower chord, forming an isosceles triangle structure that balances stability and lightweight. Bracket 9 includes two horizontal chords 113. Eight vertical web members 112 are spaced along the length between the two chords 113. Vertical columns 111 are connected above the second, fourth, sixth, and eighth web members 112. Web members 112 are sequentially arranged diagonally within each square separated by the web members 112 and the chords. The entire lattice dome is supported from below by two supporting trusses and the multiple columns 111 of bracket 9, ensuring uniform force during sliding.

[0040] Specifically, the materials used for the sliding bracket 6 are shown in the following table, wherein the column 111, the web 112, the chord 113, and the chord 2 114 correspond to Figures 8 to 14 The components of the supporting trusses 1-81 and 1-71 shown in FIG.

[0041]

[0042] In order to increase the sliding smoothness, this embodiment further adds a sliding pad, which falls above the sliding track 3 and is connected to the front end of the lattice shell structure by welding so as to slide together.

[0043] The specific implementation process is as follows:

[0044] Temporary supports and sliding beams 2 are laid along lines 12 to 15, and four sliding tracks 3 are laid parallel to the top surface of each sliding beam 2. The sliding tracks 3 are fixed to the sliding beam 2 through the track pressure plate 12. According to the drawings, the supporting trusses, connecting trusses, and brackets 9 are overlapped and welded into a sliding support 6 as a whole. The sliding support 6 is placed on the sliding track 3 and its lattice dome structure is supported from below. By installing the hydraulic crawler 5 and other pushing sliding components, it slides from the initial assembly position to the designed position along the track.

[0045] The above is only an embodiment of the present invention, and the commonly known specific structures and characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A single-layer ellipsoidal lattice shell dome sliding device, characterized by: It includes a temporary support unit, a sliding unit, and a sliding support. The temporary support unit is vertically arranged on the ground along the sliding direction. The top surface of the temporary support unit is flush and used to overlap the sliding unit. The sliding unit includes a sliding track, a sliding beam, a hydraulic crawler, and a track pressure plate. The sliding beam is set up in parallel above the temporary support unit. The sliding track is set up in parallel above the sliding beam through the track pressure plate. The hydraulic crawler is connected between the sliding track and the sliding support. The sliding bracket is used to support the grid shell dome from below. The sliding bracket includes a supporting truss 1, a supporting truss 2, a plurality of connecting trusses, and a bracket. The supporting truss 1 and the supporting truss 2 are arranged in parallel along the width of the grid shell dome. The connecting truss is connected along the length between the supporting trusses 1 and 2. One supporting truss 1 and one supporting truss 2 constitute a supporting portion. The two supporting portions are connected by a bracket. The two supporting portions are symmetrically arranged along the bracket. The supporting trusses 1, 2 and the bracket respectively include a plurality of columns. The top height of the columns is set along the curvature of the bottom surface of the grid shell dome.

2. The single-layer ellipsoidal lattice shell dome sliding device according to claim 1, characterized in that: The supporting truss 1 and the supporting truss 2 respectively include six columns, and the bracket includes four columns.

3. The single-layer ellipsoidal lattice shell dome sliding device according to claim 2, characterized in that: The connecting trusses include connecting truss 1, connecting truss 2, connecting truss 3, and connecting truss 4. Each connecting truss includes two chords arranged horizontally along the height. The two ends of the chords are connected by columns to form a frame. Two webs are arranged at the vertices of the frame. The upper ends of the two webs are connected to the midpoint of the upper chord, and the lower ends of the two webs are connected to the two end points of the lower chord.

4. The single-layer ellipsoidal lattice shell dome sliding device according to claim 3, characterized in that: The track pressing plate is provided every 500 mm along the length of the sliding track.

5. The single-layer ellipsoidal lattice shell dome sliding device according to claim 4, characterized in that: The temporary support includes a temporary support 1 and a temporary support 2. The temporary support 1 is vertically erected on the ground at an elevation of +9.6m, and the temporary support 2 is vertically erected at an elevation of -10.73m. The upper ends of the two temporary supports are flush.

6. The single-layer ellipsoidal lattice shell dome sliding device according to claim 5, characterized in that: The supporting trusses, connecting trusses and brackets are all constructed using round tubes.

7. The single-layer ellipsoidal lattice shell dome sliding device according to claim 6, characterized in that: Four sliding tracks are arranged at intervals along the width direction of the lattice shell dome.

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