Modularized single-rail hoisting system for mounting high-altitude hollow-layer curtain wall and construction method

Abstract

The invention provides a modular monorail hoisting system for mounting a high-altitude hollow-layer curtain wall and a construction method, and belongs to the technical field of modular monorail hoisting for mounting curtain walls, the modular monorail hoisting system comprises I-shaped steel rails, and jacking supports are arranged beside the I-shaped steel rails; the top of the cross beam is used for erecting an I-shaped steel rail; the cross beam is used for being in rigid connection with a scaffold arranged on the ground through bolts. And the cross beam extends to a retraction area of a track route according to the preset track route of the I-shaped steel track and bypasses a structural shield on the track route. The problems that in the prior art, tower crane arm extension is limited and cannot cover a working face due to retraction into a floor during installation of a hanging garden hollow curtain wall of a high-rise building, a floor adopts a prefabricated prestressed hollow slab, so that the structure is light, the bearing capacity is weak, a hoisting point cannot be pre-buried, the risk of manual carrying aloft work is greatly increased, and the efficiency is low are effectively solved. And the high-precision positioning requirement of the curtain wall unit is difficult to meet.

Description

Technical Field

[0001] The present invention belongs to the technical field of modular monorail hoisting for curtain wall installation, and in particular relates to a modular monorail hoisting system and a construction method for high-altitude void-layer curtain wall installation. Background Art

[0002] A cantilever curtain wall (also known as an overhead curtain wall) is a curtain wall system installed in a building's vertical space, spanning multiple floors without physical floor slabs. It is commonly found in the atriums or rooftops of super-high-rise buildings. Its design and construction require addressing unique challenges, such as large spans and high-altitude operations.

[0003] As mentioned in the prior art patent publication "CN219604826U," the construction of cantilevered curtain walls is also gaining traction. However, in the installation of cantilevered curtain walls in high-rise buildings, particularly in the recessed structural areas between the 9th and 12th (18th and 21st) floors (12.6 meters high), traditional hoisting technology faces fundamental challenges. The recessed floors limit the reach of the tower crane, preventing it from covering the work surface. Furthermore, the floor slabs are constructed using prefabricated, prestressed hollow-core slabs, which are lightweight but weak in load-bearing capacity, making it impossible to pre-embed lifting points. While manual handling can circumvent mechanical limitations, it significantly increases the risks of high-altitude operations and is inefficient, making it difficult to meet the high-precision positioning requirements of curtain wall units. This series of contradictions has made cantilevered curtain wall installation a technical blind spot in high-altitude construction, urgently requiring an innovative solution that circumvents structural limitations while balancing safety and efficiency. Summary of the Invention

[0004] In order to solve the defects in the existing technology, the present invention provides a modular monorail lifting system and construction method for the installation of high-altitude cantilever curtain walls, which effectively solves the problems in the existing technology that in the installation of cantilever curtain walls of sky gardens in high-rise buildings, the tower crane arm span is limited and cannot cover the working surface due to the retracted floors, and the floor slabs are made of prefabricated prestressed hollow slabs, which makes the structure lightweight but has weak bearing capacity, and it is impossible to pre-embed lifting points. The risk of manual high-altitude handling operations is greatly increased and the efficiency is low, and it is difficult to meet the high-precision positioning requirements of the curtain wall units.

[0005] The present invention utilizes the following technical solutions.

[0006] A modular monorail hoisting system for installing high-altitude void-layer curtain walls, comprising: I-beam track, with a top support next to the I-beam track; The top of the crossbeam is used to set up the I-beam track; the crossbeam is used to rigidly connect with the scaffolding set on the ground through bolts; The crossbeam extends along the preset I-beam track to the indented area of ​​the track and bypasses any structural obstructions on the track. Furthermore, the I-beam track uses I-152x102x17.86kg / m I-beam as the main track.

[0007] Furthermore, the crossbeam is made of S275 steel.

[0008] Furthermore, the bolts are M12 / M16 galvanized bolts.

[0009] Furthermore, the structure for rigidly connecting the beam to the scaffolding by bolts includes: Two adjustable plywoods, one adjustable plywood is arranged on the top of the beam, and the other adjustable plywood is arranged between the top of the scaffolding and the bottom of the beam. The top of the adjustable plywood and the bottom of the adjustable plywood are respectively connected to the bottom of the beam and the top of the scaffolding. The two adjustable plywoods are arranged vertically opposite to each other, and the two sides of the two adjustable plywoods arranged vertically opposite to each other are screwed together by two bolts.

[0010] Furthermore, one end of the crossbeam is fixedly connected to one end of the wind-resistant cable, and the other end of the wind-resistant cable is fixedly connected to the ground.

[0011] Furthermore, the structure in which the other end of the wind-resistant cable is fixedly connected to the ground includes: Bottom support plate, the bottom support plate is fastened to the ground by expansion bolts; Two baffles are symmetrically arranged in the middle of the bottom support plate; The other end of the wind-resistant cable is inserted into the two baffles to be fixedly connected with the top wall of the bottom support plate.

[0012] Furthermore, the other end of the beam is used to install the I-beam track, and an electric hoist is provided at the bottom of the other end of the beam, and a sling is connected to the electric hoist.

[0013] Furthermore, a second electric hoist is provided on one side of the I-beam track, and a second sling is connected to the second electric hoist.

[0014] A construction method of a modular monorail hoisting system for installing a high-altitude void-layer curtain wall, comprising: Step 1: Scaffolding erection: According to the indentation range of the cantilevered floor structure, erect the full-floor scaffolding, ensure that the distance between the vertical poles of the scaffolding is ≤1.5m, the distance between the horizontal poles of the scaffolding is ≤1.8m, and set diagonal braces on the scaffolding to enhance the overall stability; Step 2: Mark the beam installation position on the top of the scaffolding according to the indentation area; Step 3: Beam installation: rigidly connect the S275 steel beam to the scaffolding poles with M16 bolts; Step 4: Install a wind-resistant cable at one end of the beam, install an I-beam track at the other end of the beam, and connect the I-beam track to the beam with M12 bolts; Step 5: Hang a 5T electric hoist on the I-beam track to carry out the curtain wall hoisting operation of the cantilever floor.

[0015] The beneficial effects of the present invention are as follows: The present invention completely gets rid of the dependence on the floor structure through the scaffolding-integrated monorail hoisting design: the outriggers and I-beam tracks are directly anchored to the scaffolding body to distribute the load to the overall support system, avoiding the risk of local compression of the hollow slab; at the same time, modular components (such as adjustable M12 bolts and wind-resistant cable anchors) enable flexible extension and rapid disassembly and assembly of the track in the indented area. Combined with high-strength steel (S275) and precise mechanical calculations, it not only ensures stability at a floor height of 12.6 meters, but also meets the positioning requirements in a small space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a top plan structural diagram of the modular monorail hoisting system for installing high-altitude void-layer curtain walls in the present invention; Figure 2 This is a front plan view of the modular monorail hoisting system for installing high-altitude void-layer curtain walls in the present invention; Figure 3 It is a planar structural diagram of a structure in which the other end of the wind-resistant cable of the modular monorail hoisting system for installing the high-altitude void-layer curtain wall of the present invention is fixedly connected to the ground.

[0017] Figure numerals: 1. I-beam track; 2. Top support; 3. Crossbeam; 4. Bolt; 5. Scaffolding; 6. Adjustable plywood; 7. Wind-resistant cable; 8. Electric hoist 1; 9. Sling 1; 10. Bottom support plate; 11. Baffle; 12. Electric hoist 2; 13. Sling 2; 14. Cantilever curtain wall. DETAILED DESCRIPTION

[0018] When installing curtain walls in the sky gardens of high-rise buildings, particularly in the recessed structural areas between floors 9 and 12 (18 and 21) (12.6 meters high), traditional lifting technology faces fundamental challenges. The recessed floors limit the reach of the tower crane, preventing it from covering the work surface. Furthermore, the floor slabs are constructed using prefabricated, prestressed hollow-core slabs, which are lightweight but weak in load-bearing capacity, making it impossible to embed lifting points. While manual handling can circumvent mechanical limitations, it significantly increases the risks of high-altitude operations and is inefficient, making it difficult to meet the high-precision positioning requirements of curtain wall units. This series of contradictions makes curtain wall installation in the sky gardens a technical blind spot in high-altitude construction, urgently requiring an innovative solution that can circumvent structural limitations while balancing safety and efficiency.

[0019] To address these challenges, the present invention utilizes a scaffolding-integrated monorail hoisting design, completely eliminating reliance on the floor structure. Outriggers and I-beam rails are directly anchored to the scaffolding body, distributing the load to the overall support system and avoiding the risk of localized compression on the hollow slab. Furthermore, modular components (such as adjustable M12 bolts and wind-resistant cable anchors) enable flexible extension and rapid assembly and disassembly of the rails within the setback area. Combining high-strength steel (S275) with precise mechanical calculations ensures stability at a 12.6-meter floor height while meeting positioning requirements within confined spaces. This invention, centered on structural adaptability, provides a safe, efficient, and economical integrated solution for the construction of complex cantilevered curtain walls.

[0020] To make the objectives, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely express the technical solutions of the present invention. The embodiments expressed in this application are only part of the embodiments of the present invention, not all of the embodiments. Based on the spirit of the present invention, other embodiments obtained by ordinary technicians in this field without making creative work are all within the scope of protection of the present invention.

[0021] like Figures 1 to 3 As shown, a modular monorail hoisting system for installing high-altitude void-layer curtain walls includes: I-beam track 1, with a top support 2 provided next to the I-beam track 1; A crossbeam 3, the top of which is used to mount the I-steel track 1; the crossbeam 3 is rigidly connected to a scaffolding 5 on the ground via bolts 4; The crossbeam 3 extends along the preset trajectory of the I-beam track 1 to the indented area of ​​the trajectory and bypasses any structural obstructions on the trajectory. The core function of the jacking support 2 installed alongside the I-beam track 1 is to ensure the stability, accuracy, and long-term safe operation of the track structure through an adjustable support system. It withstands the cyclical impact loads (such as vibration and lateral forces) generated by the I-beam track 1 under external influences, distributing them to the substructure via the jacking support chassis to prevent displacement or deformation of the I-beam track 1. The modular monorail hoisting system for the entire high-altitude cantilever curtain wall installation is supported by scaffolding to avoid localized pressure on the precast hollow-core floor slabs.

[0022] In a preferred but non-limiting embodiment of the present invention, the I-beam track 1 uses I-152x102x17.86kg / m I-beam as the main track.

[0023] The I-152x102x17.86kg / m I-beam is a standard hot-rolled I-beam (I-section steel) with a height of 152mm, a leg width of 102mm, and a theoretical weight of approximately 17.86kg / m. Based on the general advantages and characteristics of this I-152x102x17.86kg / m I-beam, its core strengths lie in its excellent bending resistance and structural stability. Its I-shaped cross-section (wide flanges and narrow webs) efficiently distributes loads, allowing it to withstand significant bending stresses without deformation. This makes it suitable for flexural members such as beams and columns, enhancing the load-bearing safety of building frames.

[0024] In a preferred but non-limiting embodiment of the present invention, the crossbeam 3 is made of S275 steel.

[0025] S275 steel is a structural steel in the European standard (EN 10025), combining strength and toughness. Its high strength (yield strength ≥ 275MPa) combined with high elongation (≥ 22%) has excellent impact fatigue resistance56. It also has outstanding low-temperature toughness (for example, S275J2 has an impact energy ≥ 27J at -20℃), making it suitable for projects in extremely cold regions.

[0026] In a preferred but non-limiting embodiment of the present invention, the bolt 4 is a M12 / M16 galvanized bolt.

[0027] M12 / M16 galvanized bolts offer significant advantages in engineering applications due to their surface treatment and specification characteristics. The hot-dip galvanized layer has a uniform thickness (50–85μm), providing over 50 years of rust protection in rural environments and 20 years without maintenance in coastal / industrial areas, far exceeding the performance of bolts with ordinary coatings.

[0028] In a preferred but non-limiting embodiment of the present invention, the structure for rigidly connecting the crossbeam 3 to the scaffold 5 via bolts 4 includes: Two adjustable plywood 6, one adjustable plywood 6 is set at the top of the beam 3, and the other adjustable plywood 6 is set between the top of the scaffolding 5 and the bottom of the beam 3, the top of the adjustable plywood 6 and the bottom of the adjustable plywood 6 are respectively connected to the bottom of the beam 3 and the top of the scaffolding 5, and the two adjustable plywood 6 are arranged vertically opposite to each other, and the two sides of the two adjustable plywood 6 arranged vertically opposite to each other are screwed together by two bolts 4.

[0029] The crossbeam 3 is rigidly connected to the scaffold 5 via bolts 4, which can achieve rapid assembly and disassembly and load distribution.

[0030] In a preferred but non-limiting embodiment of the present invention, one end of the crossbeam 3 is fixedly connected to one end of the wind-resistant cable 7, and the other end of the wind-resistant cable 7 is fixedly connected to the ground.

[0031] One end of the crossbeam 3 is fixedly connected to one end of the wind-resistant cable 7, and the other end of the wind-resistant cable 7 is fixedly connected to the ground. This structure can act as a counterweight for this end of the crossbeam 3, avoiding the defect of uneven force on both ends of the crossbeam 3 and tilting and shaking under the action of external force when the electric hoist at the other end of the crossbeam 3 is working and carrying the I-beam track 1. The wind-resistant cable can be an 8mm steel wire rope. The advantages of 8mm steel wire rope mainly include high strength and wear resistance: 8mm steel wire rope has high tensile strength and wear resistance, can work stably in various harsh environments, and is suitable for occasions that need to withstand heavy loads and frequent use; good flexibility and elasticity: 8mm steel wire rope performs well at high speeds, operates stably and has low noise, and is suitable for use in occasions that require flexible operation.

[0032] In a preferred but non-limiting embodiment of the present invention, the structure in which the other end of the wind-resistant cable 7 is fixedly connected to the ground includes: The bottom support plate 10 is fastened to the ground by expansion bolts; Two baffles 11 are symmetrically arranged in the middle of the bottom support plate 10; The other end of the wind-resistant cable 7 extends into the two baffles 11 to be fixedly connected to the top wall of the bottom support plate 10 .

[0033] According to the bottom support plate 10, the bottom support plate 10 is fastened to the ground by expansion bolts; two baffles 11 are symmetrically arranged in the middle of the bottom support plate 10; the other end of the wind-resistant cable 7 is inserted into the two baffles 11 to be fixedly connected to the top wall of the bottom support plate 10, so that the other end of the wind-resistant cable 7 can be fixedly connected to the ground without being damaged.

[0034] In a preferred but non-limiting embodiment of the present invention, the other end of the beam 3 is used to install the I-beam track 1, and an electric hoist 8 is also provided at the bottom of the other end of the beam 3, and a sling 9 is connected to the electric hoist 8.

[0035] An electric hoist 8 is also provided at the bottom of the other end of the beam 3. The electric hoist 8 is connected to a sling 9, so that the beam 3 can also be used to hoist the cantilever curtain wall 14 through the electric hoist 8 and sling 9 in coordination with the sling 2 and electric hoist on the I-beam track 1.

[0036] In a preferred but non-limiting embodiment of the present invention, a second electric hoist 12 is provided on one side of the I-beam track 1 , and a second sling 13 is connected to the second electric hoist 12 .

[0037] An electric hoist 12 is provided on one side of the I-beam track 1 , and a structure to which a sling 13 is connected to the electric hoist 12 is connected to the curtain wall 14 of the hollow layer through the sling 12 and the electric hoist 12 is started for hoisting.

[0038] The construction method of a modular monorail hoisting system for installing a high-altitude void-layer curtain wall according to the present invention comprises: Step 1: Scaffolding erection: According to the indentation range of the cantilevered floor structure, erect the full-floor scaffolding, ensure that the distance between the vertical poles of the scaffolding is ≤1.5m, the distance between the horizontal poles of the scaffolding is ≤1.8m, and set diagonal braces on the scaffolding to enhance the overall stability; Step 2: Mark the beam installation position on the top of the scaffolding according to the indentation area; Step 3: Beam installation: rigidly connect the S275 steel beam to the scaffolding poles with M16 bolts; Step 4: Install a wind-resistant cable (8mm steel wire rope) at one end of the beam, install an I-beam track at the other end of the beam, and connect the I-beam track to the beam with M12 bolts; Step 5: Hang a 5T electric hoist on the I-beam track to carry out the curtain wall hoisting operation of the cantilever floor.

[0039] The innovative features of the present invention are: (1) Structural innovation: Scaffolding integrated design: Through the rigid connection between the beam and the I-beam track, the load is directly transferred to the scaffolding support system, completely avoiding the problem of insufficient bearing capacity of prefabricated hollow-core floor slabs.

[0040] (2) Material and process innovation High-strength and lightweight steel: S275 I-beam is selected to achieve a balance between lightweight and high bending resistance by optimizing cross-sectional parameters.

[0041] A distributed cable system with 8mm steel wire rope and M16 anchor bolts is used to stabilize the outriggers. During installation, the curtain wall units are suspended on one side, which creates an eccentric bending moment. The cables counteract this overturning moment by applying a counter-tensioning force. During high-altitude operations, wind loads can cause lateral movement of the track. The cables provide lateral restraint to limit movement.

[0042] (3) Innovation in construction efficiency Quick assembly and disassembly technology: Modular connectors enable “plug-in” installation of tracks and beams.

[0043] The beneficial effects of the present invention are as follows: The present invention completely gets rid of the dependence on the floor structure through the scaffolding-integrated monorail hoisting design: the outriggers and I-beam tracks are directly anchored to the scaffolding body to distribute the load to the overall support system, avoiding the risk of local compression of the hollow slab; at the same time, modular components (such as adjustable M12 bolts and wind-resistant cable anchors) enable flexible extension and rapid disassembly and assembly of the track in the indented area. Combined with high-strength steel (S275) and precise mechanical calculations, it not only ensures stability at a floor height of 12.6 meters, but also meets the positioning requirements in a small space.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not deviate from the spirit and scope of the present invention should be covered within the protection space of the claims of the present invention.

Claims

1. A modular monorail hoisting system for high-altitude curtain wall installation, characterized in that: include: I-beam track, with a top support next to the I-beam track; Crossbeam, the top of the crossbeam is used to erect the I-beam track; The crossbeam is used to rigidly connect with the scaffolding set on the ground through bolts; The crossbeam extends along the preset I-beam track to the indented area of ​​the track and bypasses any structural obstructions on the track.

2. The modular monorail hoisting system for high-altitude open-air curtain wall installation according to claim 1 is characterized in that: The I-beam track uses I-152x102x17.86kg / m I-beam as the main track.

3. The modular monorail hoisting system for high-altitude open-air curtain wall installation according to claim 2 is characterized in that: The crossbeam is made of S275 steel.

4. The modular monorail hoisting system for high-altitude open-air curtain wall installation according to claim 3 is characterized in that: The bolts are M12 / M16 galvanized bolts.

5. The modular monorail hoisting system for high-altitude open-air curtain wall installation according to claim 4 is characterized in that: The beams used to rigidly connect to the scaffolding by bolts include: Two adjustable plywoods, one adjustable plywood is arranged on the top of the beam, and the other adjustable plywood is arranged between the top of the scaffolding and the bottom of the beam. The top of the adjustable plywood and the bottom of the adjustable plywood are respectively connected to the bottom of the beam and the top of the scaffolding. The two adjustable plywoods are arranged vertically opposite to each other, and the two sides of the two adjustable plywoods arranged vertically opposite to each other are screwed together by two bolts.

6. The modular monorail hoisting system for high-altitude open-air curtain wall installation according to claim 5 is characterized in that: One end of the crossbeam is fixedly connected to one end of the wind-resistant cable, and the other end of the wind-resistant cable is fixedly connected to the ground.

7. The modular monorail hoisting system for high-altitude open-air curtain wall installation according to claim 6 is characterized in that: The structure in which the other end of the wind-resistant cable is fixedly connected to the ground includes: Bottom support plate, the bottom support plate is fastened to the ground by expansion bolts; Two baffles are symmetrically arranged in the middle of the bottom support plate; The other end of the wind-resistant cable is inserted into the two baffles to be fixedly connected with the top wall of the bottom support plate.

8. The modular monorail hoisting system for installing high-altitude void-layer curtain wall according to claim 7 is characterized in that: The other end of the beam is used to install the I-beam track. An electric hoist is also provided at the bottom of the other end of the beam, and a sling is connected to the electric hoist.

9. The modular monorail hoisting system for high-altitude open-air curtain wall installation according to claim 8 is characterized in that: A second electric hoist is provided on one side of the I-beam track, and a second sling is connected to the second electric hoist.

10. A construction method for a modular monorail hoisting system for installing a high-altitude void-layer curtain wall, characterized in that: include: Step 1: Scaffolding erection: According to the indentation range of the cantilevered floor structure, erect the full-floor scaffolding, ensure that the distance between the vertical poles of the scaffolding is ≤1.5m, the distance between the horizontal poles of the scaffolding is ≤1.8m, and set diagonal braces on the scaffolding to enhance the overall stability; Step 2: Mark the beam installation position on the top of the scaffolding according to the indentation area; Step 3: Beam installation: rigidly connect the S275 steel beam to the scaffolding poles with M16 bolts; Step 4: Install a wind-resistant cable at one end of the beam, install an I-beam track at the other end of the beam, and connect the I-beam track to the beam with M12 bolts; Step 5: Hang a 5T electric hoist on the I-beam track to carry out the curtain wall hoisting operation of the cantilever floor.

Images