High-rise cantilever curtain wall construction platform and erecting method

Abstract

The invention discloses a high-rise cantilever curtain wall construction platform and an erecting method, vertical square steel pipes of the construction platform are arranged between the top surfaces and the bottom surfaces of upper and lower structure boundary beams on the outer edge of a building top layer structure, horizontal cantilever steel beams are inserted into the vertical square steel pipes, and fixing hoops are arranged to lock the horizontal cantilever steel beams; the telescopic adjusting steel inclined supporting rod is arranged between the bottom end of the vertical square steel pipe and the overhanging end of the horizontal overhanging steel beam, and a fastener steel pipe support is arranged between the middles of the vertical square steel pipe and the horizontal overhanging steel beam. According to the method, a bracket platform is designed and manufactured through BIM, and steel embedded parts are arranged on the top faces and the bottom faces of upper and lower structure boundary beams; the bracket platform is hoisted to the position between the upper structure boundary beam and the lower structure boundary beam and welded to the steel embedded part, and a scaffold is erected on the bracket platform; after the curtain wall is installed, the scaffold is dismantled, welding points are cut off, and the bracket platform is hoisted to the ground to be disassembled and dismantled. According to the construction platform and the erecting method, the construction efficiency and safety of the curtain wall are improved, and a relatively isolated and safe operation platform is provided for construction of the cantilever curtain wall.

Description

Technical Field

[0001] The present invention relates to the technical field of high-rise cantilever curtain wall construction, and in particular to a high-rise cantilever curtain wall construction platform and an erection method. Background Art

[0002] For aesthetic purposes, high-rise buildings, often designed as landmarks, often feature various types of cantilevered eaves, making them stand out from the crowd. Some high-rise buildings' eaves resemble inverted staircases, with the eaves cantilevering further outward as the building rises, almost like a cap. However, this design presents significant construction challenges, especially for curtain wall construction. For smaller spans, such as those under three meters, traditional cantilevered I-beams and scaffolding work platforms can be used. However, as the height and span of the eaves increase, the traditional cantilevered I-beam + scaffolding work platform model can no longer meet demand, necessitating the use of various specialized mechanical measures. This significantly increases construction costs and difficulty, and poses potential safety risks. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a high-rise cantilever curtain wall construction platform and erection method. The construction platform and erection method effectively improve the efficiency and safety of curtain wall construction and reduce costs. At the same time, combined with BIM technology for precise simulation, it ensures accurate control of the production and erection process, and provides a relatively isolated and safe working platform for cantilever curtain wall construction.

[0004] In order to solve the above technical problems, the high-rise cantilever curtain wall construction platform of the present invention includes vertical square steel tubes, horizontal cantilever steel beams and retractable adjustable steel diagonal braces. The vertical square steel tubes are vertically spaced between the top and bottom surfaces of the upper and lower structural side beams at the outer edge of the building's top structure. The horizontal cantilever steel beams are inserted into the vertical square steel tubes and fixed clamps are provided on both sides of the vertical square steel tubes to lock the horizontal cantilever steel beams. The retractable adjustable steel diagonal braces are provided between the bottom end of the vertical square steel tubes and the cantilevered end of the horizontal cantilever steel beams. A fastener steel tube support is provided between the middle of the retractable adjustable steel diagonal brace and the middle of the horizontal cantilever steel beam.

[0005] Furthermore, an upper pull rod is provided between the cantilevered end of the horizontal cantilever steel beam and the upper structural side beam at the outer edge of the top structure of the building.

[0006] Furthermore, it also includes horizontal connecting steel beams, the horizontal cantilever steel beams are provided with sockets at intervals, the horizontal connecting steel beams are sequentially inserted into the sockets of the horizontal cantilever steel beams, and the horizontal cantilever steel beams and the horizontal connecting steel beams are vertically and horizontally crossed to form a construction platform plane.

[0007] Furthermore, a fixed clamp is provided at the connection node between the horizontal cantilever steel beam and the horizontal connecting steel beam to lock the relative position.

[0008] Furthermore, the surfaces of the horizontal cantilever steel beams and the horizontal connecting steel beams are fully covered with hard cover plates.

[0009] Furthermore, the hard cover is provided with an inspection door via a hinge.

[0010] A method for erecting the above-mentioned high-rise cantilever curtain wall construction platform comprises the following steps: Step 1: Based on the high-rise cantilever curtain wall, use BIM modeling software tools to design and produce the bracket platform, conduct stress analysis on the retractable and adjustable steel diagonal braces and upper pull rods, and determine the optimal support angle; Step 2: Install steel embedded parts matching the vertical square steel pipes at intervals on the top and bottom surfaces of the upper and lower structural side beams at the outer edge of the building top structure; Step 3: Install a pulley sling on the main beam structure of the cantilever curtain wall to be constructed, set up lifting points on the bracket platform according to the force analysis calculation, and use the pulley sling and lifting points to lift the bracket platform assembled on the ground to the upper and lower structural side beams at the outer edge of the building's top structure between the top and bottom surfaces; Step 4: Weld the vertical square steel pipes of the bracket platform to the steel embedded parts on the upper and lower parts of the building's top structure, so that the bracket platform is fixed to the edge of the building's top structure to form a complete outward cantilevered bracket platform; Step 5: Use steel pipes to build a scaffolding on the bracket platform that matches the cantilever curtain wall shape. Set a positioning structure where the vertical steel pipes of the scaffolding come into contact with the bracket platform, and the top of the scaffolding faces close to the curtain wall construction area. Step 6. After the curtain wall is installed, first remove the scaffolding, then cut off the welds between the vertical square steel pipes and the embedded steel parts, then hoist the bracket platform to the ground, and finally disassemble and dismantle it.

[0011] Furthermore, the positioning structure includes a clamp and a short pipe provided on the top surface of the clamp, the clamp is provided on the horizontal cantilever steel beam or the horizontal connecting steel beam of the bracket platform, and the vertical steel pipe of the scaffolding is inserted into the short pipe.

[0012] Furthermore, when the span of the cantilever curtain wall to be constructed changes, the width of the bracket platform can be changed by changing the length and angle of the telescopically adjustable steel diagonal bracing rod to meet the needs of different curtain wall construction working widths.

[0013] Furthermore, the scaffolding is a disc-type scaffolding or a fastener-type steel pipe scaffolding frame. Since the high-rise cantilever curtain wall construction platform and erection method of the present invention adopt the above-mentioned technical scheme, that is, the vertical square steel pipes of the construction platform are vertically spaced between the top and bottom surfaces of the upper and lower structural side beams at the outer edge of the building's top structure, the horizontal cantilever steel beam is inserted into the vertical square steel pipe and fixed clamps are provided on both sides of the vertical square steel pipe to lock the horizontal cantilever steel beam, the telescopically adjustable steel diagonal brace is provided between the bottom end of the vertical square steel pipe and the cantilever end of the horizontal cantilever steel beam, and a fastener steel pipe support is provided between the middle part of the telescopically adjustable steel diagonal brace and the middle part of the horizontal cantilever steel beam. This method uses BIM modeling software tools to design and manufacture a support platform. Steel embedded parts matching the vertical square steel pipes are installed at intervals between the top and bottom surfaces of the upper and lower structural edge beams at the outer edge of the building's top structure. The support platform is hoisted to the space between the top and bottom surfaces of the upper and lower structural edge beams at the outer edge of the building's top structure, and the vertical square steel pipes and embedded steel parts are welded. A matching scaffolding is then erected on the support platform according to the curtain wall shape. After the curtain wall is installed, the scaffolding is removed, the welds between the vertical square steel pipes and embedded steel parts are cut, and the support platform is hoisted to the ground for disassembly and removal. This construction platform and erection method effectively improves the efficiency and safety of curtain wall construction and reduces costs. At the same time, it combines BIM technology for precise simulation, ensuring accurate control of the production and erection processes, and providing a relatively isolated and safe working platform for cantilever curtain wall construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the high-rise cantilever curtain wall construction platform structure of the present invention; Figure 2 This is a plan view of the construction platform; Figure 3 This is a schematic diagram of the positioning structure in this erection method. DETAILED DESCRIPTION

[0015] Implementation example Figure 1 and Figure 2 As shown, the high-rise cantilever curtain wall construction platform of the present invention includes a vertical square steel tube 1, a horizontal cantilever steel beam 2 and a telescopically adjustable steel diagonal brace 3. The vertical square steel tube 1 is vertically spaced between the top and bottom surfaces of the upper and lower structural side beams 4 and 5 at the outer edge of the building's top structure. The horizontal cantilever steel beam 2 is inserted into the vertical square steel tube 1 and fixed clamps 21 are provided on both sides of the vertical square steel tube 1 to lock the horizontal cantilever steel beam 2. The telescopically adjustable steel diagonal brace 3 is provided between the bottom end of the vertical square steel tube 1 and the cantilevered end of the horizontal cantilever steel beam 2. A fastener steel tube support 6 is provided between the middle of the telescopically adjustable steel diagonal brace 3 and the middle of the horizontal cantilever steel beam 2.

[0016] Preferably, an upper pull rod 7 is provided between the cantilevered end of the horizontal cantilever steel beam 2 and the upper structural side beam 4 at the outer edge of the top structure of the building.

[0017] Preferably, it also includes a horizontal connecting steel beam 8, and the horizontal cantilever steel beam 2 is provided with insertion holes at intervals. The horizontal connecting steel beam 8 is inserted into the insertion holes of the horizontal cantilever steel beam 2 in sequence, and the horizontal cantilever steel beam 2 and the horizontal connecting steel beam 8 are crossed vertically and horizontally to form a construction platform plane.

[0018] Preferably, a fixing clamp 81 is provided at the connection node between the horizontal cantilever steel beam 2 and the horizontal connecting steel beam 8 to lock the relative position.

[0019] Preferably, the surface of the horizontal cantilever steel beam 2 and the horizontal connecting steel beam 8 is fully covered with a hard cover 9. The hard cover seals the construction platform to ensure the safety of the upper workers; it also prevents the falling of objects and debris during the construction of the upper cantilever curtain wall from affecting the ground workers.

[0020] Preferably, the hard cover plate 9 is provided with an inspection door 91 via a hinge. The inspection door is used for reinforcement, disassembly, adjustment of the lower diagonal brace, etc.

[0021] A method for erecting the above-mentioned high-rise cantilever curtain wall construction platform comprises the following steps: Step 1: Based on the high-rise cantilever curtain wall, use BIM modeling software tools to design and produce a bracket platform, perform a force analysis on the telescopic adjustable steel diagonal bracing rods 3 and the upper pull rods 7, and determine the optimal support angle; Step 2: Steel embedded parts 41, 51 matching the vertical square steel pipe 1 are arranged at intervals on the top and bottom surfaces of the upper and lower structural side beams 4, 5 at the outer edge of the building top structure; Step 3: Install a pulley sling on the main beam structure of the cantilever curtain wall to be constructed, set lifting points on the bracket platform according to the force analysis calculation, and use the pulley sling and lifting points to lift the bracket platform assembled on the ground to the upper and lower structural side beams 4 and 5 at the outer edge of the building's top structure between the top and bottom surfaces; Step 4: Weld the vertical square steel tube 1 of the bracket platform to the steel embedded parts 41 and 51 on the upper and lower parts of the building top structure, so that the bracket platform is fixed to the edge of the building top structure to form a complete outward cantilevered bracket platform; Step 5: Use steel pipes to build a scaffold 10 on the bracket platform that matches the cantilever curtain wall shape. Set a positioning structure 102 where the vertical steel pipes 101 of the scaffold 10 contact the bracket platform. The top of the scaffold 10 is close to the curtain wall construction site. Step 6: After the curtain wall is installed, the scaffolding 10 is first dismantled, and then the welds between the vertical square steel pipe 1 and the embedded steel parts 41 and 51 are cut off, and then the bracket platform is hoisted to the ground and finally dismantled.

[0022] After the construction platform is installed, a matching scaffolding is set up according to the shape of the curtain wall. The separate setting of the construction platform and the scaffolding makes the construction platform universal, and the scaffolding can adapt to cantilever curtain walls of various shapes. The combination of the two can better meet the construction of various cantilever curtain walls of high-rise buildings.

[0023] Preferably, Figure 3 As shown, the positioning structure 102 includes a clamp 103 and a short pipe 104 provided on the top surface of the clamp 103. The clamp 103 is provided on the horizontal cantilever steel beam 2 or the horizontal connecting steel beam 8 of the bracket platform, and the vertical steel pipe 101 of the scaffolding 10 is inserted into the short pipe 104. The positioning structure is provided to prevent the scaffolding from slipping.

[0024] Preferably, when the span of the cantilever curtain wall to be constructed changes, the width of the bracket platform is changed by changing the length and angle of the telescopically adjustable steel diagonal brace 3 to meet the needs of different curtain wall construction widths.

[0025] Preferably, the scaffolding 10 is a disc-type scaffolding or a fastener-type steel pipe scaffolding frame.

[0026] This method involves processing a bracket platform directly below the large cantilever curtain wall, assembled from high-strength steel to ensure stability and reliability; adjustable support rods are installed at the bottom of the bracket platform, and the angle and extension length are adjusted according to actual needs to adjust the width of the cantilever platform; lightweight materials are used to make the cantilever part, reducing the overall weight and improving the convenience of curtain wall construction. The bracket platform is assembled and disassembled on the ground, reducing the amount of high-altitude work and improving safety; at the same time, this construction platform is mainly mechanically assembled, with less welding, which reduces environmental pollution compared to traditional processes and protects the health of operators; the laid hard cover plate should meet the load-bearing requirements of the operators' activities, and the material specifications are determined according to calculations. If the requirements are not met, stiffening plates are installed or replaced with metal walkway plates. This construction platform and erection method provide a relatively isolated and safe working platform for the construction of cantilever curtain walls.

Claims

1. A high-rise cantilever curtain wall construction platform, characterized by: It includes vertical square steel tubes, horizontal cantilever steel beams and telescopically adjustable steel diagonal braces. The vertical square steel tubes are vertically spaced between the top and bottom surfaces of the upper and lower structural side beams at the outer edge of the building's top structure. The horizontal cantilever steel beams are inserted into the vertical square steel tubes and fixed clamps are provided on both sides of the vertical square steel tubes to lock the horizontal cantilever steel beams. The telescopically adjustable steel diagonal braces are provided between the bottom end of the vertical square steel tubes and the cantilevered end of the horizontal cantilever steel beams. A fastener steel tube support is provided between the middle of the telescopically adjustable steel diagonal braces and the middle of the horizontal cantilever steel beams.

2. The high-rise cantilever curtain wall construction platform according to claim 1 is characterized by: An upper pull rod is provided between the cantilevered end of the horizontal cantilever steel beam and the upper structural side beam at the outer edge of the top structure of the building.

3. The high-rise cantilever curtain wall construction platform according to claim 1 or 2, characterized in that: It also includes horizontal connecting steel beams. The horizontal cantilever steel beams are provided with insertion holes at intervals. The horizontal connecting steel beams are inserted into the insertion holes of the horizontal cantilever steel beams in sequence. The horizontal cantilever steel beams and the horizontal connecting steel beams are crossed vertically and horizontally to form a construction platform plane.

4. The high-rise cantilever curtain wall construction platform according to claim 3 is characterized by: The connection nodes of the horizontal cantilever steel beam and the horizontal connecting steel beam are provided with fixed clamps to lock the relative positions.

5. The high-rise cantilever curtain wall construction platform according to claim 3 is characterized by: The surfaces of the horizontal cantilever steel beams and the horizontal connecting steel beams are fully covered with hard cover plates.

6. The high-rise cantilever curtain wall construction platform according to claim 3 is characterized by: The hard cover plate is provided with an inspection door via a hinge.

7. A method for erecting a high-rise cantilever curtain wall construction platform according to any one of claims 1 to 6, characterized in that The steps include: Step 1: Based on the high-rise cantilever curtain wall, use BIM modeling software tools to design and produce the bracket platform, conduct stress analysis on the retractable and adjustable steel diagonal braces and upper pull rods, and determine the optimal support angle; Step 2: Install steel embedded parts matching the vertical square steel pipes at intervals on the top and bottom surfaces of the upper and lower structural side beams at the outer edge of the building top structure; Step 3: Install a pulley sling on the main beam structure of the cantilever curtain wall to be constructed, set up lifting points on the bracket platform according to the force analysis calculation, and use the pulley sling and lifting points to lift the bracket platform assembled on the ground to the upper and lower structural side beams at the outer edge of the building's top structure between the top and bottom surfaces; Step 4: Weld the vertical square steel pipes of the bracket platform to the steel embedded parts on the upper and lower parts of the building's top structure, so that the bracket platform is fixed to the edge of the building's top structure to form a complete outward cantilevered bracket platform; Step 5: Use steel pipes to build a scaffolding on the bracket platform that matches the cantilever curtain wall shape. Set a positioning structure where the vertical steel pipes of the scaffolding come into contact with the bracket platform, and the top of the scaffolding faces close to the curtain wall construction area. Step 6. After the curtain wall is installed, first remove the scaffolding, then cut off the welds between the vertical square steel pipes and the embedded steel parts, then hoist the bracket platform to the ground, and finally disassemble and dismantle it.

8. The method for erecting a high-rise cantilever curtain wall construction platform according to claim 7, characterized in that: The positioning structure includes a hoop and a short pipe arranged on the top surface of the hoop. The hoop is arranged on the horizontal cantilever steel beam or the horizontal connecting steel beam of the bracket platform, and the vertical steel pipe of the scaffolding is inserted into the short pipe.

9. The method for erecting a high-rise cantilever curtain wall construction platform according to claim 7, characterized in that: When the span of the cantilever curtain wall to be constructed changes, the width of the bracket platform can be changed by changing the length and angle of the telescopic adjustable steel diagonal bracing rod to meet the needs of different curtain wall construction working widths.

10. The method for erecting a high-rise cantilever curtain wall construction platform according to claim 7, characterized in that: The scaffold is a disc-type scaffold or a fastener-type steel pipe scaffold frame.

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