CN215107081U - Large-span silo roofing construction platform shore - Google Patents

Abstract

The utility model relates to the technical field of building, a large-span silo roofing construction platform fore-set is disclosed, its center pillar, fore-set, bailey frame, connecting piece, backing plate and the formwork scaffold frame that can cooperate construction platform, each structure is prefabricated alone and forms overall structure at job site concatenation installation. The roof high-altitude operation platform is installed in sections, is fast and convenient to set up, can effectively reduce construction cost consumption, increases construction operation convenience, supports of the Bailey frames are completed by the bottom column, the middle column and the top column silo walls, the stress of the silo cylinder walls is shared, the construction platform is stable in structure and high in shape, the Bailey frames are provided with multiple rows, the single row Bailey frames are small in self weight, easy to hoist and install, stable and reliable in connection among structures, good in safety, capable of adapting to various large-span structures and high-altitude construction, and wide in application range.

Description

Large-span silo roofing construction platform shore

Technical Field

The utility model relates to a construction technical field especially relates to a large-span silo roofing construction platform fore-set.

Background

Along with economic development, in order to adapt to storage requirements, larger and larger silo structures appear, the height and span of the silo structures are continuously improved, and the roof construction difficulty at the top of the silo structures is increased.

The roof construction of the existing silo structure usually adopts methods such as building an operation platform at high altitude and the like. The construction method of the high-altitude erection operation platform is that after the construction of the silo wall is completed, support members such as brackets and the like are arranged below the top of the silo, then bearing beams (section steel or a Bailey truss and the like) are installed on the support members such as the brackets and the like, and then full-span trusses are erected on the surfaces of the bearing beams to carry out construction of the silo concrete roof. In actual operation of the method, if a large-span concrete silo structure roof is met, the bearing main beams such as the section steel or the Bailey truss and the like need to have higher strength, rigidity and stability, so that the bearing main beams such as the section steel or the Bailey truss and the like have larger sections and can meet the stress requirement.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a large-span silo roofing construction platform fore-set, it has structural design ingenious, and the support effect is good, advantage such as security height.

Based on this, the utility model provides a large-span silo roofing construction platform, it includes fore-set bottom plate, fore-set section of thick bamboo wall and fore-set roof, the fore-set bottom plate with center pillar roof fixed connection, be equipped with the bracket on the fore-set section of thick bamboo wall, the fore-set roof with the junction welding of fore-set section of thick bamboo wall has the hanging rope ear, all be equipped with the hanging rope hole on the hanging rope ear, wear to be equipped with first connecting rope in the hanging rope hole, the other end of first connecting rope is connected with bailey frame.

In some embodiments of the present application, the rope hanging lugs are provided with a plurality of rope hanging holes and are uniformly distributed along the circumferential direction of the top column cylinder wall, and each rope hanging lug is provided with the first connecting rope.

In some embodiments of the present application, a top pillar reinforcing plate for connecting the bracket is arranged on the wall of the top pillar barrel, a reinforcing plate bottom supporting rib is arranged below the top pillar reinforcing plate, and the bracket is fixedly connected with the top pillar reinforcing plate.

In some embodiments of this application, the bracket includes bracket riser, bracket roof and bracket connecting plate, the bracket connecting plate with shore connection gusset plate welded connection, the bracket riser with bracket roof perpendicular to the bracket connecting plate and with bracket connecting plate welded connection, bracket roof level sets up, bracket riser perpendicular to the bracket roof just the bracket riser is equipped with more than two each be parallel to each other between the bracket roof.

In some embodiments of this application, be equipped with the coupling assembling that is used for connecting bailey frame on the bracket roof, coupling assembling includes ring channel-section steel, top connecting plate, engaging lug and set-square.

The embodiment of the utility model provides a pair of large-span silo roofing construction platform compares with prior art, and its beneficial effect lies in:

the utility model provides a large-span silo roofing construction platform fore-set includes fore-set bottom plate, fore-set section of thick bamboo wall and fore-set roof, is equipped with the bracket on the fore-set section of thick bamboo wall, accomplishes through the bracket and be connected with bailey frame, and the junction of fore-set roof and fore-set section of thick bamboo wall is equipped with the string ear simultaneously, is connected bailey frame and fore-set once more through first connecting rope to realize that bailey frame is connected twice with the fore-set, can effectively promote the connection effect of bailey post and fore-set, guarantee the stability of bailey frame.

Drawings

Fig. 1 is a schematic structural view of a large-span silo roof construction platform according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a bottom pillar according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a center pillar according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a schematic structural view of a support pillar according to an embodiment of the present invention;

fig. 6 is a front view of a corbel according to an embodiment of the present invention;

fig. 7 is a side view of a corbel according to an embodiment of the present invention;

fig. 8 is a schematic view of the connection between the bailey frames and the top pillars according to the embodiment of the present invention;

fig. 9 is a schematic view of the connection between the bailey frames and the walls of the silo according to the embodiment of the present invention.

In the figure, 1, a bottom column; 11. a bottom pillar base plate; 12. a wall of the bottom column; 13. a bottom pillar top plate; 14. A bottom pillar transverse stiffener; 15. a bottom pillar vertical stiffener; 16. embedding bolts in advance; 17. a bolt connecting plate; 18. a notch; 2. a center pillar; 21. a center pillar bottom plate; 22. a cylinder wall of the center pillar; 23. a center pillar top plate; 24. a center pillar transverse stiffener; 25. a center pillar vertical stiffener; 26. a walking platform; 261. a platform floor; 262. a platform rail; 263. a reinforcing cord; 264. a tripod; 265. a platform protective net; 3. a top pillar; 31. a top column bottom plate; 32. a top column wall; 33. a top pillar roof; 34. a top pillar reinforcement plate; 35. reinforcing plate bottom support ribs; 36. a bracket; 361. a bracket top plate; 362. a bracket vertical plate; 363. a bracket connecting plate; 364. circular ring channel steel; 365. a top connection plate; 366. connecting lugs; 367. a set square; 37. hanging rope ears; 38. a first connecting rope; 4. a pedestrian ladder; 41. a vertical rod; 42. a horizontal climbing pole; 43. a horizontal connecting rod; 44. a pedestrian ladder protective net; 5. a bailey frame; 51. a standard segment; 52. a triangular support frame section; 53. a second connecting rope; 6. a connecting member; 7. a base plate; 8. erecting a formwork scaffold; 9. bottom piers; 10. a silo floor; 20. a wall of the silo cylinder; 30. lifting lugs; 40. an iron box; 50. wood purlin.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

It should be understood that the present invention uses the terms "front", "back", etc. to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "front" information may also be referred to as "back" information, and "back" information may also be referred to as "front" information without departing from the scope of the present invention.

As shown in fig. 1 to 9, the utility model provides a large-span silo roofing construction platform, it includes bottom pillar 1, center pillar 2, the fore-set 3, bailey frame 5, the arc channel-section steel, backing plate 7 and formwork scaffold 8, particularly, construction platform's bottom pillar 1 is located on silo bottom plate 10, it includes bottom pillar bottom plate 11, bottom pillar section of thick bamboo wall 12 and bottom pillar roof 13, wear to be equipped with buried bolt 16 in advance on the bottom pillar bottom plate 11, buried bolt 16 passes in bottom pillar bottom plate 11 extends to silo bottom plate 10 and ties up together with the reinforcing bar in the silo bottom plate 10, realize effective connection of bottom pillar bottom plate 11 and silo bottom plate 10, buried bolt 16 is equipped with a plurality ofly, be connected through bolted connection board 17 between a plurality of buried bolt 16, at first ligature silo bottom plate 10 reinforcing bar and bottom mound 9 reinforcing bar during actual construction, hoist and mount bottom pillar 1 afterwards sets up buried bolt 16, buried bolt 16 sets up pouring silo bottom plate 10 concrete and mound 9 concrete with bottom pillar bottom plate 11 and buried bolt in advance after accomplishing The bolts 16 are poured in the bottom piers 9, the stable connection of the bottom column 1 and the silo bottom plate 10 is ensured, the bottom column transverse stiffening rib 14 is arranged on the bottom column cylinder wall 12, the bottom column vertical stiffening rib 15 perpendicular to the bottom column top plate 13 is arranged on the bottom column top plate 13, the overall stress condition of the bottom column 1 can be improved through the bottom column transverse stiffening rib 14 and the bottom column vertical stiffening rib 15, the structural stability of the bottom column 1 is improved, the overturning in use is avoided, and the safety of the large-span silo roof construction platform is ensured.

As shown in fig. 1, the center pillar 2 is disposed on the top of the bottom pillar 1 and is fixedly connected with the bottom pillar 1, as shown in the figure, the center pillar 2 includes a center pillar bottom plate 21, a center pillar wall 22 and a center pillar top plate 23, the center pillar bottom plate 21 and the bottom pillar top plate 13 are fixedly connected through a fastening bolt, a center pillar transverse stiffening rib 24 is disposed on the center pillar wall 22, a center pillar vertical stiffening rib 25 perpendicular to the center pillar top plate 23 is disposed on the center pillar top plate 23, the overall stress condition of the center pillar 2 can be improved by the center pillar transverse stiffening rib 24 and the center pillar vertical stiffening rib 25, the structural stability of the center pillar 2 is improved, and the safety of the large-span silo roof construction platform is ensured. Use lifting device during construction with center pillar 2 handling to the top of foundation 1, place center pillar 2 at the top of foundation 1 after aligning center pillar 2 and foundation 1, link together center pillar bottom plate 21 and foundation roof 13 through fastening bolt, realize being connected of center pillar 2 and foundation 1, accomplish the installation of center pillar 2.

It should be noted that, because the large-span silo structure is high, a plurality of center pillars 2 are usually required to be arranged in actual construction, and the plurality of center pillars 2 are connected in sequence and then are respectively connected with the bottom pillar 1 and the top pillar 3, so as to form a column structure which is stable in structure and meets the requirements in height. Particularly, connect first center pillar 2 on the foundation 1 through above-mentioned operation during the construction, later through hoisting equipment with second center pillar 2 handling to the top of first center pillar 2, second center pillar 2 aligns with first center pillar 2 after fall on first center pillar 2 with first center pillar 2 through fastening bolt fixed connection, repeat this process until the highly satisfied requirement of cylinder, later with the installation of 3 of fore-set post is accomplished to 2 tops of center pillar of 3 hoists to the fore-set post, whole process is reliable orderly.

Further, because center pillar 2 aligns and is connected with the foundation 1 after through the top of lifting device handling to foundation 1, consequently, in order to realize the quick butt joint of foundation 1 and center pillar 2, be equipped with notch 18 on the foundation roof 13, be equipped with on the center pillar bottom plate 21 with the corresponding tooth piece of notch 18 (not shown), the quick effectual completion location of accessible notch 18 and tooth piece when accomplishing hoist and mount of center pillar 2, notch 18 has promoted the accuracy of butt joint with setting up of tooth piece, reduced because of the inaccurate repeated condition of doing over again of butt joint, the indirect efficiency of construction that has promoted.

As shown in fig. 1, the top pillar 3 is disposed on the top of the center pillar 2 and is fixedly connected to the center pillar 2, the top pillar 3 includes a top pillar bottom plate 31, a top pillar wall 32, and a top pillar top plate 33, the top pillar bottom plate 31 is fixedly connected to the center pillar top plate 23, the top pillar wall 32 is provided with a bracket 36 for supporting the bailey bracket 5, and the top pillar top plate 33 is used for installing other facilities. During the construction, the hoisting equipment is also used for hoisting the top pillar 3 to the upper part of the middle pillar 2, the top pillar 3 is placed at the top part of the middle pillar 2 after the top pillar 3 is aligned to the middle pillar 2, the top pillar bottom plate 31 is connected with the middle pillar top plate 23 through the fastening bolt, the connection of the top pillar 3 and the middle pillar 2 is realized, and the installation of the top pillar 3 is completed.

Optionally, because the bottom pillar 1, all through fastening bolt fixed connection between center pillar 2 and the fore-set 3, fastening bolt needs operating personnel to reach the junction and install and debug, as shown in fig. 3 and fig. 4, be equipped with the walking platform 26 that supplies operating personnel to fall foot along the circumference of center pillar section of thick bamboo wall 22, walking platform 26 and the horizontal stiffening rib 24 fixed connection of center pillar, walking platform 26 includes platform bottom plate 261 and the platform railing 262 of locating platform bottom plate 261 tip, platform bottom plate 261 passes through fastening bolt fixed connection with the horizontal stiffening rib 24 of center pillar, the bottom of platform bottom plate 261 is equipped with the tripod 264 that increases walking platform 26 structural stability, be equipped with reinforcing rope 263 between platform railing 262 and the platform bottom plate 261, the platform railing 262 outside still is equipped with platform protection network 265. Based on walking platform 26's setting, operating personnel can follow walking platform 26 and look over the setting condition of the various structures of center pillar 2 fast, and operating personnel can accomplish the welding construction of various structures on walking platform 26 simultaneously, and outside platform protection network 265 prevented that operating personnel from accidentally falling out walking platform 26, this walking platform 26 structural design is ingenious, very big guarantee operating personnel's safety, promoted operating personnel's use and experienced.

It should be noted that, because the space is limited, the number of the brackets 36 is less than that of the bailey frames 5, and some of the brackets 36 will support a plurality of bailey frames 5 when in use, in order to ensure the connection strength between the brackets 36 and the top pillar tube wall 32, as shown in fig. 5 to 7, the top pillar reinforcement plate 34 and the reinforcement plate bottom support rib 35 are welded to the top pillar tube wall 32, the top pillar reinforcement plate 34 is disposed on the reinforcement plate bottom support rib 35, and the brackets 36 and the top pillar reinforcement plate 34 are welded to each other.

Further, as shown in fig. 6 and 7, the bracket 36 includes a bracket vertical plate 362, a bracket top plate 361 and a bracket connecting plate 363, the bracket connecting plate 363 is welded to the pillar reinforcement plate 34, the bracket vertical plate 362 and the bracket top plate 361 are perpendicular to the bracket connecting plate 363 and welded to the bracket connecting plate 363, the bracket top plate 361 is horizontally disposed, the bracket vertical plate 362 is perpendicular to the bracket top plate 361, and the bracket vertical plate 362 is provided with more than two bracket vertical plates 362 which are parallel to each other.

As shown in fig. 8 and 9, for the single-row bailey truss 5, it includes a plurality of standard segments 51 and two triangular support frame segments 52, after the standard segments 51 are spliced, the triangular support frame segments 52 are respectively connected to two ends of the standard segments 51, and the triangular support frame segments 52 are respectively connected to the corbels 36 and the silo wall 20.

The bailey frames 5 are used for providing foot falling points for erecting the formwork supporting scaffold 8, one ends of the bailey frames 5 are erected on the brackets 36 of the top column 3, the other ends of the bailey frames 5 are clamped into the silo cylinder wall 20, and due to the fact that the size of the silo structure is large, the bailey frames 5 are arranged in a plurality and all the bailey frames 5 are uniformly distributed in a scattering mode by taking the top column 3 as a circle center.

The connection of bailey truss 5 and bracket 36 is realized through the coupling assembling that sets up at bracket roof 361, specifically speaking, coupling assembling includes ring channel-section 364, top connecting plate 365, engaging lug 366 and set-square 367, ring channel-section 364 is located on bracket roof 361, top connecting plate 365 is located on ring channel-section 364, ring channel-section 364 still is connected with shore connection board 34 through set-square 367, after the set-square section 52 of bailey truss 5 was set up on top connecting plate 365, pass through fastening bolt fixed connection with engaging lug 366.

The connection of the triangular support frame section 52 to the silo wall 20 is realized by the iron box 40 and the wood beam 50. Specifically, when the pouring construction (slip form construction is generally adopted) of the silo cylinder wall 20 is performed, the iron box 40 is pre-buried in the silo cylinder wall 20 in advance, then the iron box 40 is poured in the silo cylinder wall 20, when the bailey truss 5 is hoisted, the triangular support frame section 52 at one end is slowly inserted into the iron box 40, and then the wooden balk 50 is plugged into the iron box 40 to seal the gap, so that the connection between the bailey truss 5 and the silo cylinder wall 20 is realized.

Each bei lei puts up 5 the back and only is connected with silo section of thick bamboo wall 20 and fore-set 36 of 3, can't guarantee the stability between bei lei frame 5, consequently need set up the connecting piece 6 of connecting each bei lei frame 5, particularly the utility model discloses in the embodiment connecting piece 6 is the arc wall steel, and it sets up in bei lei frame 5's top, because the span of silo roofing is great, and bei lei frame 5's length is longer, and the arc wall steel is equipped with many and every arc wall steel at least with two rows of bei lei frame 5 fixed connection, guarantees the stability of whole bei lei frame 5 systems.

Backing plate 7 is laid on bailey frame 5's top and fore-set roof 33 for the formwork scaffold 8 of accomplishing the roof construction sets up on backing plate 7, because bailey frame 5's top is located to the arc channel steel of this application, consequently backing plate 7 directly lays on arc channel-section steel and fore-set roof 33 and carries out fixed connection with corresponding structure, and is further in the embodiment of the utility model provides an, backing plate 7 is the plank preferably, and the structure is light reliable, and the cost of manufacture is low, excellent in use effect.

Optionally, as shown in fig. 1 to 3, in some embodiments of the present application, the large-span silo roof construction platform further includes a pedestrian ladder 4 extending from the silo bottom plate 10 to the top column bottom plate 31, the pedestrian ladder 4 is disposed beside the column body composed of the bottom column 1, the middle column 2, and the top column 3, and includes a vertical rod 41, a plurality of horizontal climbing rods 42 and a plurality of horizontal connecting rods 43, where the horizontal connecting rods are uniformly disposed along the vertical rod, and a portion of the horizontal connecting rods 43 respectively extend to the lateral sides of the bottom column transverse stiffening rib 14 and the middle column transverse stiffening rib 24, and are then fixedly connected with the bottom column transverse stiffening rib 14 or the middle column transverse stiffening rib 24 through fastening bolts, the horizontal climbing rods 42 are uniformly disposed along the vertical rod 41, the vertical rod 41 is provided with two rows, and a pedestrian ladder protection net 44 is hung on one row of the vertical rods 41 far from the column body. Based on this, operating personnel can reach the foundation 1 and overhaul and maintain foundation 1 and center pillar 2 on arbitrary one deck center pillar 2 fast through people's bank of stairs 4, overhauls with handling personnel in the past and maintains and compare convenient and fast more, has promoted work efficiency, and construction experience in the operating personnel has also obtained the promotion.

Further, in order to prevent accidents occurring when the bailey truss 5 and the bracket 36 are separated, the safety degree of the bailey truss 5 is further improved, a rope hanging lug 37 is welded at the joint of the top post top plate 33 and the top post cylinder wall 32, the rope hanging lugs 37 are arranged in a plurality of numbers, the rope hanging lugs 37 are uniformly distributed along the circumferential direction of the top post cylinder wall 32, each rope hanging lug 37 is provided with a rope hanging hole, a first connecting rope 38 penetrates through the rope hanging holes, the other end of the first connecting rope 38 is connected with the bailey truss 5, the first connecting rope 38 is a second safety measure after the bailey truss 5 and the bracket 36 are connected, and the bailey truss 5 and the bracket 36 are prevented from being connected and failing to cause integral overturn of an integral roof construction system.

Similar to the structure, the silo wall 20 is provided with a lifting lug 30, a second connecting rope 53 penetrates through the lifting lug 30, and the other end of the second connecting rope 53 is connected with the bailey bracket 5. The second connecting rope 53 is a second safety measure after the bailey truss 5 is connected with the silo, and prevents the whole roof construction system from overturning due to the failure of the connection between the bailey truss 5 and the silo.

Additionally, the utility model also provides a method of setting up of large-span silo roofing construction platform, a serial communication port, including following step:

s1, embedding the embedded bolts 16 at the pouring position of the silo bottom plate 10, and carrying out concrete pouring construction on the silo bottom plate 10 and the silo wall 20;

s2, hoisting the bottom pillar 1 to the center of the silo bottom plate 10, installing the bottom pillar 1, and then pouring the bottom pier 9;

s3, after the strength of the bottom pier 9 meets the design requirement, hoisting the middle column 2 to the upper part of the bottom column 1, and fixing the bottom column 1 and the middle column 2 by using bolts;

s4, after the bottom pillar 1 and the middle pillars 2 are fixedly connected, hoisting the other middle pillar 2 and hoisting the other middle pillar 2 to the upper side of the middle pillar 2, fixing the two middle pillars 2 by using bolts, and repeating the processes until all the middle pillars 2 are hoisted;

s5, hoisting the top pillar 3 to the upper part of the top center pillar 2, and fixing the center pillar 2 and the top pillar 3 by using bolts;

s6, hoisting the Bailey frames 5, respectively connecting two ends of each Bailey frame 5 with the top pillar 3 and the silo cylinder wall 20, wherein the Bailey frames 5 are provided with a plurality of Bailey frames 5, and each Bailey frame 5 is uniformly distributed in a scattering state by taking the top pillar 3 as the center of a circle;

s7, after the bailey frames 5 are hoisted, arc-shaped groove steel is paved on the tops of the bailey frames 5 and the top of the top pillar 3 to connect the bailey frames 5;

s8, after the arc channel steel is connected with the bailey frames 5, a base plate 7 is laid on the top surface of the arc channel steel;

and S9, erecting a formwork scaffold 8 on the top surface of the backing plate 7.

Furthermore, after the construction platform is erected, an operator can erect a template on the formwork support scaffold, bind and construct the reinforcing steel bars of the radial girders, the annular beams and the floor slabs, and pour and construct the radial girder concrete, the annular beam concrete and the floor slab concrete to complete the construction of the silo roof.

It should be noted that, because this large-span silo roofing construction platform is the concatenation formula structure, operating personnel can follow formwork scaffold frame and begin to demolish each part downwards in proper order after the construction is accomplished, and this construction platform can recycle, and the practicality is high.

To sum up, the utility model provides a large-span silo roofing construction platform, it includes sill pillar, center pillar, fore-set, bailey frame, connecting piece, backing plate and formwork scaffold, and each structure is prefabricated alone and forms overall structure at job site concatenation installation. Compared with the prior art, the roof high-altitude operation platform is installed in sections, is fast and convenient to erect, can effectively reduce construction cost consumption, and increases construction operation convenience, the bottom column, the middle column and the top column are combined to form a cylinder structure positioned in the center of the silo, the cylinder structure and the wall of the silo cylinder are used for supporting the Bailey truss together, stress on the wall of the silo cylinder is shared, and the construction platform is favorable for improving structural stability of the construction platform.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (5)

1. The utility model provides a large-span silo roofing construction platform fore-set, its characterized in that, includes fore-set bottom plate, fore-set section of thick bamboo wall and fore-set roof, fore-set bottom plate and construction platform's center pillar roof fixed connection, be equipped with the bracket on the fore-set section of thick bamboo wall, the fore-set roof with the junction welding of fore-set section of thick bamboo wall has the rope hanging ear, all be equipped with the rope hanging hole on the rope hanging ear, wear to be equipped with first connecting rope in the rope hanging hole, the other end of first connecting rope is connected with bailey frame.

2. The large-span silo roof construction platform top column as claimed in claim 1, wherein the rope hanging lugs are provided in plurality and uniformly distributed along the circumferential direction of the top column wall, and each rope hanging lug is provided with the rope hanging hole and the first connecting rope.

3. The large-span silo roof construction platform top column of claim 1, wherein a top column reinforcing plate for connecting the bracket is arranged on the wall of the top column, a reinforcing plate bottom supporting rib is arranged below the top column reinforcing plate, and the bracket is fixedly connected with the top column reinforcing plate.

4. The large-span silo roof construction platform shore of claim 3, characterized in that the bracket includes bracket riser, bracket roof and bracket connecting plate, the bracket connecting plate with shore gusset plate welded connection, the bracket riser with bracket roof perpendicular to the bracket connecting plate and with bracket connecting plate welded connection, bracket roof level sets up, bracket riser perpendicular to the bracket roof just the bracket riser is equipped with more than two each be parallel to each other between the bracket roof.

5. The large-span silo roof construction platform top column of claim 4, wherein the bracket top plate is provided with a connecting assembly for connecting a bailey bracket, and the connecting assembly comprises a circular channel steel, a top connecting plate, a connecting lug and a triangular plate.

Images