Structure for carrying out roof reticulated shell construction by utilizing sliding of travelling crane

Abstract

The utility model provides a structure for carrying out roof reticulated shell construction through traveling crane sliding. The structure comprises a large-span top rail, a traveling crane, a bottom bearing platform, a ring lock scaffold and a supporting jig frame. The crane stretches across the large-span top rail, the bottom bearing platform is arranged on the upper portion of a crane main beam, the ring lock scaffold is erected on the bottom bearing platform, the supporting jig frame is supported at the upper end of the ring lock scaffold, and the crane drives the bottom bearing platform and the ring lock scaffold to move. By utilizing the characteristics of the travelling crane equipment, the construction structure is arranged, so that the construction structure has the advantages of flexibility, small construction amount, high matching degree with the travelling crane and no mutual interference with the travelling crane.

Description

Technical Field

[0001] The utility model relates to the technical field of roof construction, in particular to a structure for constructing a roof grid shell by utilizing a sliding vehicle. Background Art

[0002] Traditional steel structure sliding construction adopts the structure cumulative sliding construction process. This process is to set up a structure assembly docking platform on the outside, and the platform can be set up using standard section supports or scaffolding that can be rented on the market.

[0003] Before the sliding construction, track embedded parts need to be buried under the structure in advance and the sliding track needs to be installed. After the structure is located above the docking platform and one structural unit is assembled, one structural unit is slid forward according to the sliding unit division, and the sliding rate is about 3m~5m / h. After the first unit is slid into place, the second structural unit is assembled, and after being connected to the first unit as a whole, it continues to slide one structural unit. Subsequent structural units are advanced in this order.

[0004] Traditional structural sliding has many technical and on-site production problems: (1) The number of measures is large, and the economic benefits are low for projects with a small overall steel consumption; (2) Steel structure construction requires early intervention on site to install embedded parts and tracks; (3) The sliding crawling equipment needs to be set up separately, and the equipment installation needs to be considered after it is installed, which is a cumbersome process; (4) Sliding monitoring is difficult, and a maintenance passage needs to be set up next to the sliding track to ensure smooth construction; (5) The erection of the assembly platform will interfere with other professional construction, resulting in cross-operation and certain safety risks.

[0005] In order to solve the above problems, those skilled in the art are looking for new solutions. Utility Model Content

[0006] The utility model aims to address the deficiencies of the prior art, thereby providing a structure which has flexibility, small construction volume, high coordination with a crane and no mutual interference, and utilizes the sliding of a crane to carry out roof grid shell construction.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a structure for roof lattice shell construction using a sliding crane, including a large-span top rail, a crane, a bottom load-bearing platform, a disc buckle scaffold and a supporting frame;

[0008] The crane crosses over the large-span top rail, the bottom load-bearing platform is arranged on the upper part of the crane main beam, the disc-lock scaffolding is erected on the bottom load-bearing platform, the supporting frame is supported on the upper end of the disc-lock scaffolding, and the crane drives the bottom load-bearing platform and the disc-lock scaffolding to move.

[0009] Based on the above, the bottom load-bearing platform is a simply supported beam frame structure mainly composed of H-shaped steel, the chords of the simply supported beam frame structure are arranged in at least three rows, and the webs of the simply supported beam frame structure are evenly spaced.

[0010] Based on the above, the distribution span of the web members is ≥900mm.

[0011] Based on the above, the disc-lock scaffolding is arranged in the form of a high middle portion and low ends, and the span of the disc-lock scaffolding is the same as the distributed span of the web members.

[0012] Based on the above, the lower end of the disc-locked scaffolding is connected to the hoist of the crane main beam through a fastener steel pipe scaffolding.

[0013] Based on the above, the diagonal bars in the disc-lock scaffolding are distributed at intervals of two spans.

[0014] Based on the above, the supporting frame includes a mandrel, a supporting angle steel and a steel plate, the length of the steel plate is greater than the span of the disc buckle scaffolding, the mandrel is welded to the upper end of the steel plate, and the supporting angle steel is connected between the mandrel and the steel plate.

[0015] The utility model has substantial characteristics and progress compared with the prior art. Specifically, the utility model has the following advantages:

[0016] 1. The splicing operation platform is set above the crane, which occupies a small area and alleviates the problem of spatial interference between subcontracting operations. The flexibility is greatly improved and it is suitable for scenes with small steel consumption.

[0017] 2. The driving sliding synchronization is better, which helps to ensure the installation accuracy. The structure will not be offset when it is placed due to the asynchronous movement of the sliding and creeping machinery, or even cause excessive stress and structural cracking.

[0018] 3. Compared with the traditional sliding crawling design, it requires fewer measures, reduces installation costs, and greatly improves construction convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of a structure for constructing a roof grid shell by utilizing a sliding crane in the utility model.

[0020] Figure 2 It is a partial schematic diagram of a structure of the utility model for carrying out roof grid shell construction by utilizing the sliding movement of a traveling crane.

[0021] Figure 3 It is a schematic diagram of the bottom load-bearing platform.

[0022] Figure 4 It is a schematic diagram of the tire support frame.

[0023] Figure 5 It is a schematic diagram of the connection between the disc-lock scaffolding and the sweeping rod.

[0024] Figure 6 This is a schematic diagram of the construction site.

[0025] 1. Top rail; 2. Crane; 3. Bottom load-bearing platform; 4. Disc scaffolding; 5. Support frame; 31. Chord; 32. Belly bar; 41. Sweeping rod; 42. Steel pipe scaffolding; 51. Top rod; 52. Support angle steel; 53. Steel pad. DETAILED DESCRIPTION

[0026] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0027] like Figure 1 and Figure 6 As shown, a structure for constructing a roof grid shell by using a sliding crane includes a large-span top rail 1, a crane 2, a bottom load-bearing platform 3, a coiled scaffold 4 and a supporting frame 5.

[0028] The crane 2 spans across the large-span top rail 1. The crane 2 is generally a crane structure that needs to be installed at the industrial site. The solution is based on the installation of the crane 2 before starting to execute. Since the self-propelled stability of the crane is much higher than the precision of the temporarily constructed sliding climbing frame structure, the construction accuracy can also be guaranteed by using the crane structure for construction.

[0029] The bottom load-bearing platform 3 is arranged on the upper part of the main beam of the crane 2, the disc-lock scaffolding 4 is erected on the bottom load-bearing platform 3, the supporting frame 5 is supported on the upper end of the disc-lock scaffolding 4, and the crane 2 drives the bottom load-bearing platform 3 and the disc-lock scaffolding 4 to move.

[0030] Specifically, in the present embodiment, the bottom load-bearing platform 3 is a simply supported beam frame structure mainly composed of H-shaped steel, and at least three chords 31 of the simply supported beam frame structure are arranged, and the webs 32 of the simply supported beam frame structure are evenly distributed, and the distribution span of the webs is ≥900mm. Since the on-site crane is in the form of a crane hanging between two beams, the middle span is relatively large. Therefore, three chords are arranged in the present embodiment to prevent the middle part of the web from being affected by the weight of the scaffolding and the structure from deflecting.

[0031] During the installation phase of the load-bearing platform, the crane system has been installed in place. In order to reduce the impact of the suspension system on the platform during platform sliding and to protect the finished products of the suspension system, the suspension system needs to be locked and the steel platform at the overlapping position of the projection needs to be suspended to form a frame structure for covering.

[0032] The coiled scaffolding 4 is arranged in a form of being high in the middle and low at both ends, and the span of the coiled scaffolding 4 is the same as the distributed span of the web members 32. Specifically, in this embodiment, the frame is calculated to be erected with a horizontal distance of 0.9m, a vertical distance of 0.9m, a step height of 1.0m, and the diagonal bars are arranged at intervals of two spans.

[0033] In order to ensure the horizontal displacement of the structure when it slides, a sweeping rod 41 is arranged at the lower part of the disc-locked scaffolding 4, and the sweeping rod 41 is connected to the hoist of the main beam of the crane through a fastener steel pipe scaffolding 42.

[0034] Generally, the roof is a drum-type node and is curved on one side. During assembly, an independent support frame 5 is required to ensure temporary fixing, and at the same time, the weight of the top structure is transmitted to the bottom load-bearing platform 3 through it and the buckle scaffolding 4.

[0035] The support frame 5 includes a mandrel 51, a support angle steel 52 and a steel pad 53. The length of the steel pad is greater than the span of the scaffolding, and the specifications are 1000mm in length and width and 12mm in thickness. The mandrel is welded to the upper end of the steel pad, and the support angle steel is connected between the mandrel and the steel pad to prevent the component from tilting. The mandrel adopts a round tube structure.

[0036] This scheme is experimentally constructed in the ultra-gravity centrifugal equipment pit, with a maximum depth of about 23m. Both sides are arched concrete rigid structural columns. If the traditional installation process is used, there is no flat transportation road around, it is difficult to operate the crane, it is impossible to assemble on the ground, and there is no condition to set up a sliding scaffolding operating platform on the ground. If the roof structure is sliding, it is necessary to temporarily add a track, which is extremely difficult to install, and an additional assembly operating platform with a height of nearly 40m is set up, which increases the installation cost.

[0037] The adoption of this solution solved a series of problems such as construction period, interference with subcontract construction, and large amount of operations.

[0038] Finally, it should be noted that: The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A structure for roof lattice shell construction using a sliding vehicle, characterized in that: It includes a large-span top rail, a crane, a bottom load-bearing platform, a disc-locked scaffold and a supporting frame; The crane crosses over the large-span top rail, the bottom load-bearing platform is arranged on the upper part of the crane main beam, the disc-lock scaffolding is erected on the bottom load-bearing platform, the supporting frame is supported on the upper end of the disc-lock scaffolding, and the crane drives the bottom load-bearing platform and the disc-lock scaffolding to move.

2. The structure for roof lattice shell construction using a sliding vehicle according to claim 1 is characterized in that: The bottom load-bearing platform is a simply supported beam frame structure mainly composed of H-shaped steel. The chord bars of the simply supported beam frame structure are arranged in at least three rows, and the web bars of the simply supported beam frame structure are distributed at equal intervals.

3. The structure for roof lattice shell construction using a sliding vehicle according to claim 2 is characterized in that: The distribution span of the web members is ≥900 mm.

4. The structure for roof lattice shell construction using a sliding vehicle according to claim 3 is characterized in that: The coiled scaffolding is arranged in a form of being high in the middle and low at both ends, and the span of the coiled scaffolding is the same as the distributed span of the web members.

5. The structure for roof lattice shell construction using a sliding vehicle according to claim 4 is characterized in that: The lower end of the disc buckle scaffold is connected with the hoisting hoop of the crane main beam through a fastener steel pipe scaffold.

6. The structure for roof lattice shell construction using a sliding vehicle according to claim 5 is characterized in that: The diagonal rods in the disc-lock scaffolding are distributed at intervals of two spans.

7. The structure for roof grid shell construction using a sliding vehicle according to claim 6 is characterized in that: The supporting frame includes a mandrel, a supporting angle steel and a steel plate. The length of the steel plate is greater than the span of the disc buckle scaffolding. The mandrel is welded to the upper end of the steel plate. The supporting angle steel is connected between the mandrel and the steel plate.

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