Suspended Installation Platform for Spherical Latticed Shells

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Solution Overview

Problem

The existing installation methods for spherical latticed shell structures are complex, labor-intensive, and pose safety risks due to the large radius of the structures, requiring extensive on-site assembly of support frames, which increases construction costs and safety hazards.

Innovation Solution

An installation tool comprising a support frame, hoisting system, fixing frame, and stay rope assemblies with a movable adjusting device, allowing for the stable and efficient installation of latticed shell units by forming a stable stress system through adjustable stay ropes and a spliced circular ring fixing frame, facilitating synchronized installation and reducing the need for extensive on-site support frame assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If in-situ installation of spare parts is performed by erecting support frames in a full hall, then the spherical latticed shell structure can be installed, but huge workload, installation complexity, high measure expense, more spatial force bearing points, stress system conversion complexity and high safety risks are caused

Engineering Contradiction:
Improveinstallation safetyVSAvoidsupport frame system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the support frame system from the full hall installation process and replaces it with a suspended installation platform system. The installation platform is hung from the already-installed latticed shell units above, removing the need for extensive ground-based support frames and reducing installation complexity and safety risks.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies preliminary action by first installing a certain number of latticed shell units to form a stable stress system, then using these installed units as anchor points for the suspended installation platform. This preliminary installation creates the foundation for subsequent easier installation steps.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If in-situ installation of spare parts is performed by erecting support frames in a full hall, then the spherical latticed shell structure can be installed, but huge workload and high measure expense are caused

Engineering Contradiction:
Improveinstallation stabilityVSAvoidinstallation efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent introduces a dynamic suspended installation platform that can move along the radial direction and adjust its position. The platform's movable design allows workers to access different installation locations efficiently, improving productivity while maintaining installation stability through the stay rope assembly's adjustable tensioning system.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The installation platform serves multiple functions: it provides a working platform for assembly, a hoisting system for lifting components, a positioning system via stay ropes, and a movement mechanism along the radial direction. This multi-functionality reduces the need for multiple separate systems, improving both efficiency and stability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Volume of moving object

If an ordinary spherical latticed shell structure is larger in radius, then the structure can accommodate larger venues, but huge workload of erecting and removing the support frames in the full hall on site is caused

Engineering Contradiction:
Improvedome structure volumeVSAvoidinstallation time
Core Design Contradiction:
Volume of moving objectVSLoss of time

Solution Approach 1:

The patent segments the installation process into modular stages using the suspended platform approach. Each latticed shell unit is installed independently and then serves as an anchor for the next stage, allowing progressive outward expansion of large-radius structures without requiring complete full-hall support frame assembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of building support frames from the ground up in a full hall, the patent inverts the approach by suspending the installation platform from the already-installed upper structures and working downward and outward. This reversal eliminates the need for extensive ground-based support infrastructure.

Inventive Principle:
Principle #13The other way round (Inversion)

Data Source

PatentUS11629492B2Installation tool and method for spherical latticed shell structure
Publication Date: 2023.04.18 NO 1 CONSTR ENG CO LTD OF CHINA CONSTR THIRD ENG BUREAU CO LTD
  • US11629492B2 patent drawing
  • US11629492B2 patent drawing
  • US11629492B2 patent drawing

AI summary

An installation tool and method for spherical latticed shell structure is provided. The spherical latticed shell structure includes a plurality of latticed shell units. The installation tool includes a support frame, a hoisting system, a fixing frame and stay rope assemblies. The support frame is arranged on one side of a to-be-installed spherical latticed shell structure. The fixing frame is connected with the hoisting system. The hoisting system is arranged on the support frame for hoisting the fixing frame. The stay rope assemblies are connected with the fixing frame and the latticed shell units.