CN220036067U - Large-span combined construction platform - Google Patents

Abstract

The utility model relates to a large-span combined construction platform. The large-span combined construction platform comprises a central column, a plurality of bailey beams and a column top weldable disc piece, wherein the column top weldable disc piece comprises a top ring disc, a central cylinder and a bottom ring disc which are welded in sequence, the central column comprises three sub-columns, each sub-column is formed by sequentially connecting a weldable top column and a plurality of standard columns from top to bottom through flange plates and bolts, and the weldable top columns of the three sub-columns are respectively welded on the lower surface of the bottom ring disc of the column top weldable disc piece; each Bailey beam comprises a weldable non-standard frame, a plurality of standard frames and an outer connecting frame which are sequentially connected, wherein the inner side of the weldable non-standard frame extends out to form a weldable end part, and each weldable end part is welded on the upper surface of a top annular disc of the column top weldable disc piece. The utility model has simple structure, convenient installation, saving money and labor and is suitable for constructing the cone top of the silo.

Description

Large-span combined construction platform

Technical Field

The utility model relates to a large-span combined construction platform.

Background

Along with economic development, in order to adapt to the storage requirement, more and more large-scale silo structures appear, the height and the span of the silo structures are continuously improved, and the roof construction difficulty at the top of the silo structures is also increased.

The Chinese patent publication No. CN 112854702A on 2021.05.28 discloses a large-span silo roof construction platform which comprises a bottom column, a middle column, a top column, a bailey frame, a connecting piece, a backing plate and a formwork scaffold, wherein each structure is prefabricated independently and spliced and installed on a construction site to form an integral structure. This roofing high altitude construction platform segmentation installation, it is quick convenient to set up, can reduce construction cost consumption effectively, increases construction operation convenience, and the support of bailey frame is accomplished together to sill pillar, center pillar and jack-up cylinder silo section of thick bamboo wall, has shared the atress of cylinder wall, and construction platform stable in structure, and the bailey frame has the multirow, and the dead weight of single bailey frame of arranging is little, easily handling and installation, connects reliable and stable between each structure, and the security is also better, can adapt to various large-span structures and high altitude construction, and application scope is wide. The utility model also provides a method for erecting the large-span silo roof construction platform.

The existing silo is large in diameter, and the number of all bailey frames of a construction platform is large, so that the jacking columns are necessarily large enough to support the inner ends of a plurality of bailey frames, so that the center column (comprising the jacking columns, the middle column and the bottom column) is large in diameter, heavy in weight, cumbersome to lift and install, and when the angle is slightly deviated, pin holes on triangular supports at the inner ends of the bailey frames cannot be aligned with pin holes on corresponding brackets, and bolts cannot be inserted for fixing.

Disclosure of Invention

The utility model aims to overcome the defects that in the prior art, the center column is large in diameter, heavy in weight and complex in lifting and mounting, and pin holes on triangular support frames at the inner ends of bailey frames are difficult to align with pin holes on corresponding brackets.

In order to solve the technical problems, the large-span combined construction platform comprises a central column and a plurality of bailey beams, wherein the bailey beams are uniformly distributed in a radial shape around the central column, the inner end of each bailey beam is directly or indirectly fixed on the top end of the central column, the outer end of each bailey beam is directly or indirectly fixed on the wall of a matched silo, supporting rods are uniformly paved on each bailey beam, a flat plate is paved on the supporting rods, the large-span combined construction platform further comprises a column top weldable disc piece, the column top weldable disc piece comprises a top ring disc, a central cylinder and a bottom ring disc which are sequentially welded,

the center column comprises three sub-columns, each sub-column is formed by sequentially connecting a weldable jacking column and a plurality of standard columns from top to bottom through a flange plate and bolts, the three sub-columns are uniformly distributed around the axial lead of the column top weldable disc piece, and the weldable jacking columns of the three sub-columns are respectively welded on the lower surface of the bottom annular disc of the column top weldable disc piece; each Bailey beam comprises a weldable non-standard frame, a plurality of standard frames and an outer connecting frame which are sequentially connected from inside to outside, wherein a weldable end part extends out of the inner side of each weldable non-standard frame, and each weldable end part is welded on the upper surface of a top ring disc of a column top weldable disc piece.

So designed, three welded top posts and several standard posts are connected to the component posts via flanges and bolts to replace the central post, so that the weight is greatly reduced. During installation, the column top weldable disc piece is welded at the top ends of the three sub-columns, the inner ends of all the bailey beams are welded on the upper surface of the column top weldable disc piece through the weldable end parts of the weldable non-standard frames, and the welding method is used for replacing a pin joint mode, so that the safety and convenience are realized, and the trouble of pin joint is avoided.

After the matched building is finished, when the large-span combined construction platform is dismantled, the welding seam on the column top weldable disc piece is cut by gas. The standard column, the standard frame and the outer connecting frame of each Bailey beam can be repeatedly used, and only three branch-column weldable jacking columns, each weldable end part and the column top weldable disc parts are subjected to gas cutting and affected by different design diameters and heights of silos to be built, so that the parts cannot be repeatedly used and are cut without loss.

As optimization, a plurality of reinforcing rib plates are welded on the outer wall of the central cylinder, two ends of each reinforcing rib plate are respectively welded on a top circular disc and a bottom circular disc, the top circular disc comprises a dial plate and a base disc which are overlapped up and down, threaded holes and through holes are respectively formed in the top circular disc and the base disc, the threaded holes and the through holes are opposite one to one, screws are respectively penetrated, and the threaded holes and the through holes are connected through the screws; each of the weldable ends is welded to the upper surface of the dial; the bottom ring disk comprises a base disk and a dial plate which are overlapped up and down and are respectively provided with a through hole and a threaded hole, the through holes and the threaded holes are opposite one to one, screws are respectively penetrated, and the through holes and the threaded holes are connected through the screws; the three sub-columns are welded on the lower surface of the dial plate of the bottom ring disk, the outer end surfaces of all the screws are flush with the surface of the dial plate where the screws are positioned, and the two ends of each reinforcing rib plate are welded on the base disk of the top ring disk and the base disk of the bottom ring disk respectively. When the large-span combined construction platform is dismantled after the construction is completed, only two dials on the column top weldable disc piece are cut as far as possible when a welding line is cut by gas, the weldable top column and each weldable end part are protected as far as possible, then the weldable top column and each weldable end part are polished respectively, and when the large-span combined construction platform is used next time, only two damaged dials are detached and replaced by new dials.

The large-span combined construction platform has the advantages of simple structure, convenient installation, saving money and labor and being suitable for constructing the conical top of the silo.

Drawings

The large-span combined construction platform is further described below with reference to the accompanying drawings:

fig. 1 is a schematic front view of a center post, a post-top weldable disc member, and a plurality of bailey beams of a first embodiment of the large-span modular construction platform;

fig. 2 is a schematic top view of a column top weldable disc and multiple bailey beams of a first embodiment of the large-span modular construction platform;

fig. 3 is a schematic top view (with a flat plate omitted) of the first embodiment of the large-span modular construction platform;

fig. 4 is a schematic perspective view of a column top weldable disc member according to a second embodiment of the large-span modular construction platform;

fig. 5 is an exploded view of the pole top weldable disc of fig. 4.

In the figure: the steel plate welding machine comprises a Bailey beam 1, a weldable non-standard frame 11, a weldable end 111, a standard frame 12, an outer connecting frame 13, a matched silo wall 2, a supporting rod 3, a column top weldable round plate part 4, a top round plate 41, a central cylinder 42, a bottom round plate 43, a reinforcing rib plate 44, a dial plate 45, a base plate 46, a threaded hole 47, a through hole 48, a screw 49, a split column 5, a weldable top column 51, a standard column 52 and a flange 6.

Description of the embodiments

Embodiment one: as shown in fig. 1-2, the large-span combined construction platform comprises a central column and a plurality of bailey beams 1, wherein the bailey beams 1 are uniformly distributed in a radial line shape around the central column, the inner end of each bailey beam 1 is directly or indirectly fixed on the top end of the central column, and the outer end of each bailey beam 1 is directly or indirectly fixed on a matched silo wall 2. As shown in fig. 3, support rods 3 are uniformly laid on each beret beam 1, and a flat plate (not shown in the figure) is laid on the support rods 3.

The method is characterized in that: it further comprises a top-of-column weldable disc member 4, the top-of-column weldable disc member 4 comprising a top annular disc 41, a central cylinder 42 and a bottom annular disc 43, welded in sequence.

The center column comprises three sub-columns 5, each sub-column 5 is formed by sequentially connecting a weldable top column 51 and a plurality of standard columns 52 from top to bottom through a flange 6 and bolts, the three sub-columns 5 are uniformly distributed around the axial lead of the column top weldable disc piece 4, and the weldable top columns 51 of the three sub-columns 5 are respectively welded on the lower surface of the bottom annular disc 43 of the column top weldable disc piece 4; each bailey beam 1 comprises a weldable non-standard frame 11, a plurality of standard frames 12 and an outer connecting frame 13 which are sequentially connected from inside to outside, wherein a weldable end 111 extends from the inner side of each weldable non-standard frame 11, and each weldable end 111 is welded on the upper surface of the top annular disc 41 of the column top weldable disc member 4.

Embodiment two: as shown in fig. 1-3, as shown in fig. 4 and 5, a plurality of reinforcing rib plates 44 are welded on the outer wall of the central cylinder 42, two ends of each reinforcing rib plate 44 are respectively welded on the top circular disc 41 and the bottom circular disc 43, the top circular disc 41 comprises a dial 45 and a base disc 46, the dial 45 and the base disc are overlapped up and down, threaded holes 47 and through holes 48 are respectively formed in the dial, the threaded holes 47 are opposite to the through holes 48 one by one, screws 49 are respectively penetrated, and the dial and the base disc are connected through the screws 49; each of the weldable ends 111 is welded to the upper surface of dial 45; the bottom ring disc 43 comprises a base disc 46 and a dial 45 which are overlapped up and down and are respectively provided with a through hole 48 and a threaded hole 47, the through holes 48 and the threaded holes 47 are opposite one to one, and screws 49 are respectively penetrated and connected through the screws 49; the three sub-columns 5 are welded on the lower surface of the dial 45 of the bottom ring disk 43, the outer end surfaces of all the screws 49 are flush with the surface of the dial 45 where they are located, and two ends of each reinforcing rib plate 44 are welded on the base disk 46 of the top ring disk 41 and the base disk 46 of the bottom ring disk 43 respectively, and the rest of the structure is as described in the first embodiment.

Constructing a traditional silo cone top construction platform with the diameter of 28 meters and the height of 40 meters, and constructing the construction period: about 60 days is required, and each cost is 12.88 ten thousand yuan. The large-span combined construction platform of the utility model with the same size is constructed, the construction period only needs 45 days, each cost only needs 7.0 ten thousand yuan, compared with two phases, the construction period is saved by 15 days, and the economy is saved: 12.88-7.0=5.88 ten thousand yuan.

Claims (2)

1. The utility model provides a large-span combination formula construction platform, includes center column and many bailey beams, and many bailey beams are radial evenly distributed around the center column, and the inner of every bailey beam is direct or indirect to be fixed on the center column top, and the outer of every bailey beam is direct or indirect to be fixed on the silo wall of joining in marriage, evenly lays the supporting rod on each bailey beam, lays dull and stereotyped on the supporting rod, its characterized in that: the column top welding disc piece comprises a top disc, a center cylinder and a bottom disc which are sequentially welded, wherein the center cylinder comprises three sub-cylinders, each sub-cylinder is formed by sequentially connecting a welding top cylinder and a plurality of standard cylinders from top to bottom through a flange and bolts, the three sub-cylinders are uniformly distributed around the axis of the column top welding disc piece, and the welding top cylinders of the three sub-cylinders are respectively welded on the lower surface of the bottom disc of the column top welding disc piece; each Bailey beam comprises a weldable non-standard frame, a plurality of standard frames and an outer connecting frame which are sequentially connected from inside to outside, wherein a weldable end part extends out of the inner side of each weldable non-standard frame, and each weldable end part is welded on the upper surface of a top ring disc of a column top weldable disc piece.

2. The large-span modular construction platform according to claim 1, wherein: a plurality of reinforcing rib plates are welded on the outer wall of the central cylinder, two ends of each reinforcing rib plate are respectively welded on a top circular disc and a bottom circular disc, the top circular disc comprises a dial plate and a base disc, the dial plate and the base disc are overlapped up and down, threaded holes and through holes are respectively formed in the top circular disc and the base disc, the threaded holes and the through holes are opposite one to one, screws are respectively penetrated, and the threaded holes and the through holes are connected through the screws; each of the weldable ends is welded to the upper surface of the dial; the bottom ring disk comprises a base disk and a dial plate which are overlapped up and down and are respectively provided with a through hole and a threaded hole, the through holes and the threaded holes are opposite one to one, screws are respectively penetrated, and the through holes and the threaded holes are connected through the screws; the three sub-columns are welded on the lower surface of the dial plate of the bottom ring disk, the outer end surfaces of all the screws are flush with the surface of the dial plate where the screws are positioned, and the two ends of each reinforcing rib plate are welded on the base disk of the top ring disk and the base disk of the bottom ring disk respectively.