CN214696763U - Super high-rise large cantilever steel truss construction platform - Google Patents
Super high-rise large cantilever steel truss construction platform Download PDFInfo
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- CN214696763U CN214696763U CN202022282317.2U CN202022282317U CN214696763U CN 214696763 U CN214696763 U CN 214696763U CN 202022282317 U CN202022282317 U CN 202022282317U CN 214696763 U CN214696763 U CN 214696763U
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Abstract
The utility model discloses a super high-rise large cantilever steel truss construction platform, which adopts triangular trusses as standard trusses, and every two standard trusses are connected through connecting beams to form a hoisting joint; the standard truss is formed by connecting a platform main beam, a main inclined support, a vertical support, a secondary inclined support and an inter-support beam; the coupling beam comprises an upper coupling beam for connecting two adjacent platform main beams, a middle inner coupling beam for connecting two adjacent vertical supports, a middle outer coupling beam for connecting two adjacent main inclined struts and inclined web members for connecting the vertical supports and the main inclined struts; the platform main beam and the main inclined strut are integrally stressed with the finished structure through the embedded part; aiming at the construction of a super high-rise large cantilever structure, a cantilever steel truss platform is erected on the lower layer of the cantilever steel truss platform and serves as a supporting platform of a cantilever structure formwork support body, and meanwhile, the problem of conflict between the cantilever steel truss platform and the construction of a climbing frame is solved through secondary disassembly and assembly of the climbing frame, so that the structure construction quality can be guaranteed, the safety of field construction can be guaranteed, the construction period is shortened, and the engineering cost is saved.
Description
Technical Field
The utility model belongs to building engineering construction field provides a super high-rise steel truss construction platform of encorbelmenting greatly very much.
Background
With the emergence of super high-rise buildings like spring bamboo shoots, real estate companies pursue diversification and viewing requirements of the form of the outer vertical face of the building, and a plurality of super-long overhanging structures are often arranged in the building structure design, which brings great difficulty and insecurity to construction. The low-rise building is cantilevered greatly, and a full frame is usually selected to be erected as a formwork support of the cantilever structure for construction. However, the large cantilever for the high-rise building cannot be applied to full-hall frame construction, the height of the frame body is too high and exceeds the set height allowed by the specification, the safety and the overall stability are poor, and safety accidents such as collapse and high falling are easy to happen.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a super high-rise steel truss construction platform of encorbelmenting greatly for solve super high-rise building structure of encorbelmenting greatly (highly be greater than or equal to 200m, length of encorbelmenting is greater than or equal to 6m) can't be through setting up the difficult problem of full hall formwork construction.
The technical scheme of the utility model is that: a super high-rise large cantilever steel truss construction platform adopts triangular trusses as trusses, and every two trusses are connected through a connecting beam to form a hoisting joint 3; the truss is formed by connecting a platform main beam 4, a main inclined support 5, a vertical support 6, a secondary inclined support 7 and an inter-support beam 8; the coupling beams comprise upper coupling beams 9 for connecting two adjacent platform main beams 4, middle inner coupling beams 10 for connecting two adjacent vertical supports 6, middle outer coupling beams 11 for connecting two adjacent main inclined struts 5 and inclined web members 12 for connecting the vertical supports 6 and the main inclined struts 5; the platform main beam 4 and the main inclined strut 5 form integral stress with the finished structure 14 through the embedded part 13; after the hoisting is finished, fully laying a steel plate 16 on the platform and fully welding the steel plate with the main beam 4 of the platform, and arranging safety protection railings 17 on three sides of the adjacent edge of the platform; 3 lifting lugs 18 are arranged on the platform girder 4 of each truss.
Furthermore, the steel truss is made of 18# I-shaped steel, the strength of the steel is Q235, the connection mode of the steel sections of all the parts is welding, the welding rod is E43, the height of the welding line is hf and 6mm, and the welding line L is 100mm double-sided welding.
Furthermore, the embedded part 13 is made of Q235 steel plates, the size is 510 multiplied by 300 multiplied by 20mm, six HRB400 steel bars 15 with the diameter of 20mm and the length of 500mm are subjected to plug welding through holes on the steel plates, the steel bars are arranged in 3 rows along the length direction of the steel plates at the interval of 230mm, and are arranged in 2 rows along the short direction of the steel plates at the interval of 260 mm.
Further, the steel plate 16 is a Q235 steel plate, the thickness is 10mm, and the paving width is the same as the width of the steel truss construction platform.
Furthermore, the lifting lugs 18 are made of Q235 steel plates, the size of each lifting lug is 100 multiplied by 10mm, a lifting hole is formed in the middle of each lifting lug, the diameter of each lifting lug is 45mm, the distance between each first lifting lug 18 and the front end of the corresponding platform girder 4 is 100mm, the distance between each second lifting lug and the front end of the corresponding platform girder 4 is 2550mm, and the distance between each third lifting lug and the front end of the corresponding platform girder 4 is 4550 mm.
Further, safety protection railing 17 adopts 50X 3mm square tube to make, including three vertical posts 19 and the horizontal railing 20 of twice, vertical post 19 height is 1200mm, and the horizontal interval is 1500mm, sets up the horizontal railing 20 of twice in 1200mm high range, and the interval is 600mm, sets up close mesh safety net 21 in the railing scope, sets up in the bottom 300mm within range and keeps off the sole 22.
The utility model discloses following profitable effect has:
the utility model discloses to the construction of super high-rise structure of encorbelmenting greatly, set up the steel truss platform of encorbelmenting in its one deck, as the supporting platform of the structure formwork support body of encorbelmenting, through the secondary dismouting to climbing the frame, solved the difficult problem of encorbelmenting steel truss platform and climbing the frame construction conflict simultaneously. The construction quality of the structure can be guaranteed, the safety of on-site construction can be guaranteed, the construction period is shortened, and the engineering cost is saved.
The utility model discloses a triangle-shaped truss constitutes a hoist and mount festival as the pin, per two pins. An embedded part is arranged on the boundary beam of the next layer of the large cantilever structure layer and is welded with the steel truss, so that an effective stress system is formed and is used for bearing construction loads in the process of erecting the cantilever plate formwork and the climbing frame.
The utility model discloses after the structure construction was accomplished, still can continue to utilize, multiple use such as operation platform as outer facade decoration, curtain installation and construction.
The utility model discloses but steel construction material recycle does not have the waste, and energy-concerving and environment-protective can reduce construction cost again.
The utility model discloses flexibility, suitability are stronger, can provide the reference for constructions such as super high-rise building structure of encorbelmenting.
Drawings
FIG. 1 is a plan view of the platform of the cantilever steel truss of the present invention;
FIG. 2 is a vertical view of the cantilever steel truss platform of the present invention;
FIG. 3 is a layout of middle horizontal struts and steel beams of the present invention;
FIG. 4 is a vertical view of the arrangement of the embedded parts;
FIG. 5 is a plan view of the arrangement of the embedded parts;
FIG. 6 is a cross-sectional view of a triangular steel truss at a middle structural beam of the present invention;
FIG. 7 is a cross-sectional view of a triangular steel truss at a middle structural column of the present invention;
FIG. 8 is a schematic view (front view) of a middle embedded part of the present invention;
FIG. 9 is a schematic view (side view) of a middle embedded part of the present invention;
FIG. 10 is a perspective view of a middle guard rail of the present invention;
fig. 11 is a schematic structural view after the steel plate is fully paved;
in the figure: 3. hoisting the joints; 4. a platform main beam; 5. a main diagonal brace; 6. vertical support; 7. a secondary diagonal bracing; 8. supporting the intermediate beam; 9. an upper coupling beam; 10. the middle inner side is connected with a beam; 11. the middle part of the beam is connected with the outer side of the beam; 12. a diagonal web member; 13. embedding parts; 14. the structure is finished; 15. reinforcing steel bars; 16. a steel plate; 17. a guard rail; 18. lifting lugs; 19. a vertical column; 20. a transverse rail; 21. a dense mesh safety net; 22. a foot baffle plate.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-11, a super high-rise large cantilever steel truss construction platform adopts triangular trusses as trusses, every two trusses are connected through a connecting beam to form a hoisting joint 3, and the hoisting joint 3 is composed of 10 hoisting joints in total; the truss is formed by connecting a platform main beam 4, a main inclined support 5, a vertical support 6, a secondary inclined support 7 and an inter-support beam 8; the coupling beams comprise upper coupling beams 9 for connecting two adjacent platform main beams 4, middle inner coupling beams 10 for connecting two adjacent vertical supports 6, middle outer coupling beams 11 for connecting two adjacent main inclined struts 5 and inclined web members 12 for connecting the vertical supports 6 and the main inclined struts 5; the platform main beam 4 and the main inclined strut 5 form integral stress with the finished structure 14 through the embedded part 13; after the hoisting is finished, fully laying a steel plate 16 on the platform and fully welding the steel plate with the main beam 4 of the platform, and arranging safety protection railings 17 on three sides of the adjacent edge of the platform; 3 lifting lugs 18 are arranged on the platform girder 4 of each truss.
In the embodiment of the utility model, the pin shaped steel adopts 18# I-steel, Q235 is chooseed for use to steel intensity, and each part shaped steel connected mode is the welding, and the welding rod adopts E43, and the welding seam height is hf ═ 6mm, welding seam L ═ 100mm double-sided welding.
In the embodiment of the utility model, built-in fitting 13 adopts the Q235 steel sheet, and the size is 510X 300X 20mm, and six diameters of perforation plug welding are 20mm, length is 500 mm's HRB400 reinforcing bar 15 on the steel sheet, and the reinforcing bar is long to arranging 3 rows along the steel sheet, and interval 230mm arranges 2 rows, interval 260mm along the steel sheet short-direction.
In the embodiment, the steel sheet 16 adopts the Q235 steel sheet, and thickness is 10mm, lays the width with steel truss construction platform width.
In the embodiment of the utility model, the lifting lugs 18 are made of Q235 steel plates, the size is 100 multiplied by 10mm, the middle part is provided with a lifting hole, the diameter is 45mm, and the first lifting lug 18 is 100mm away from the front end of the platform girder 4 and is a lifting lug when being dismantled; the distance between the second lifting lug and the front end of the platform main beam 4 is 2550 mm; the distance between the third lifting lug and the front end of the platform girder 4 is 4550mm, and the third lifting lug is a lifting lug during installation.
In the embodiment, safety protection railing 17 adopts 50X 3mm square tube to make, including three vertical posts 19 and twice horizontal railing 20, vertical post 19 height is 1200mm, and the horizontal interval is 1500mm, sets up twice horizontal railing 20 in 1200mm high range, and the interval is 600mm, sets up close mesh safety net 21 in the railing scope, sets up the fender foot board 22 in the bottom 300mm within range.
The utility model discloses during the construction, the local concrete beam that the reply is connected with the steel platform increases the early strength agent of different degrees to keep remaining enough volume with the conditional concrete test block, gain the detection report, confirm that the concrete strength reaches 100% after, the installation that can hoist and mount the festival is fixed.
As the size of a single hoisting section exceeds the transportation range, the blanking parts are transported in advance in a processing plant according to a steel structure deepening drawing and transported to the site for assembly. Firstly, a simple jig frame is erected on the ground open space close to the horizontal projection position of the mounting platform, after the jig frame is erected, the tower crane is assembled in a matched mode, each part is assembled in a single piece according to a drawing, after the assembly is completed, the welding is checked and carried out without errors, a single hoisting section is formed after the welding is completed, and the tower crane is hoisted to a designated position to be sequentially mounted.
The platform dismantling sequence is opposite to the installation sequence, after a steel wire rope of the tower crane is connected with hoisting joints before dismantling, steel plate and steel beam members connected between every hoisting joint are dismantled firstly and transferred to a safety range in a building, then the connection pivot of the hoisting joints and the structure is dismantled, the dismantled members are fixed by adopting a manual hoist for ensuring safety, and the dismantling process is avoided from slipping.
The manufacture and installation of the embedded part are strictly carried out according to the design requirements, and the installation positioning deviation of the embedded part cannot exceed [ -15mm, 15mm ]. The welding construction quality of the steel platform and the structural connection support is guaranteed, temporary fixation and wind and fire prevention measures are required to be set in the welding process. Before the section steel beams and the steel plates between the hoisting joints are installed, a double-layer dense mesh safety net is arranged in the area between the hoisting joints of the steel platform, and the specification and the quality of the safety net meet the requirements of relevant specifications so as to ensure the construction safety of operating personnel.
The embodiment can be adjusted according to actual conditions, and the embodiment only briefly describes the cantilever steel truss construction platform under specific conditions.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (6)
1. A super high-rise large-cantilever steel truss construction platform is characterized in that a triangular truss is adopted as a truss for the super high-rise large-cantilever steel truss construction platform, and every two trusses are connected through a connecting beam to form a hoisting joint (3); the truss is formed by connecting a platform main beam (4), a main inclined support (5), a vertical support (6), a secondary inclined support (7) and an inter-support beam (8); the coupling beams comprise upper coupling beams (9) for connecting two adjacent platform main beams (4), middle inner coupling beams (10) for connecting two adjacent vertical supports (6), middle outer coupling beams (11) for connecting two adjacent main inclined struts (5) and inclined web members (12) for connecting the vertical supports (6) and the main inclined struts (5); the platform main beam (4) and the main inclined strut (5) form integral stress with the finished structure (14) through the embedded part (13); after the hoisting is finished, fully laying a steel plate (16) on the platform and fully welding the steel plate with the platform main beam (4), and arranging safety protection railings (17) on three sides of the platform edge; 3 lifting lugs (18) are arranged on the platform main beam (4) of each truss.
2. The super high-rise large cantilever steel truss construction platform as claimed in claim 1, wherein the steel truss is 18# I-steel, the strength of the steel is Q235, the connection mode of the steel sections is welding, the welding rod is E43, the height of the welding seam is hf-6 mm, and the welding seam L-100 mm is double-sided welding.
3. The super high-rise large cantilever steel truss construction platform according to claim 1, wherein the embedded part (13) is made of Q235 steel plates with the size of 510 x 300 x 20mm, six HRB400 steel bars (15) with the diameter of 20mm and the length of 500mm are subjected to plug welding through holes in the steel plates, the steel bars are arranged in 3 rows along the length direction of the steel plates at the interval of 230mm, and in 2 rows along the short direction of the steel plates at the interval of 260 mm.
4. The super high-rise large cantilever steel truss construction platform as claimed in claim 1, wherein the steel plate (16) is Q235 steel plate with a thickness of 10mm and a laying width equal to the width of the steel truss construction platform.
5. The super high-rise large cantilever steel truss construction platform of claim 1, wherein the lifting lugs (18) are Q235 steel plates with the size of 100 x 10mm, a lifting hole is formed in the middle of the lifting lugs, the diameter of the lifting lugs is 45mm, the first lifting lug (18) is 100mm away from the front end of the platform girder (4), the second lifting lug is 2550mm away from the front end of the platform girder (4), and the third lifting lug is 4550mm away from the front end of the platform girder (4).
6. The super high-rise large cantilever steel truss construction platform according to claim 1, wherein the safety protection railings (17) are made of a 50 x 3mm square tube and comprise three vertical columns (19) and two transverse railings (20), the height of each vertical column (19) is 1200mm, the horizontal distance is 1500mm, the two transverse railings (20) are arranged within the height range of 1200mm, the distance is 600mm, a fine mesh safety net (21) is arranged within the railing range, and a foot blocking plate (22) is arranged within the bottom 300mm range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022282317.2U CN214696763U (en) | 2020-10-14 | 2020-10-14 | Super high-rise large cantilever steel truss construction platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022282317.2U CN214696763U (en) | 2020-10-14 | 2020-10-14 | Super high-rise large cantilever steel truss construction platform |
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| Publication Number | Publication Date |
|---|---|
| CN214696763U true CN214696763U (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022282317.2U Active CN214696763U (en) | 2020-10-14 | 2020-10-14 | Super high-rise large cantilever steel truss construction platform |
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| CN (1) | CN214696763U (en) |
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