Construction Elevator Guide Rail Assembly via Cable Lifting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing elevator systems for high-rise construction sites face challenges in safely and efficiently adapting to increasing building heights, requiring heavy machinery and disrupting operations when adjusting lifting heights.
Innovation Solution
A self-moving construction-phase elevator system with a cable-based lifting device, comprising an upper and lower protection platform, and an assembly platform that can be elongated upwards, allowing for efficient growth and evacuation processes without interrupting operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If heavy machine platforms are used to lift guide rails in conventional climbing lifts, then the lifting capability is sufficient, but the ease of operation deteriorates due to the heavy weight and difficulty in handling
Solution Approach 1:
The system divides the lifting function into two separate components: a stationary machine platform fixed at the top of the elevator shaft that provides the lifting force, and a movable guide rail assembly that is lifted separately. This segmentation allows the machine platform to remain lightweight while still providing sufficient lifting capability for the guide rails.
Solution Approach 2:
A cable-based lifting device acts as an intermediary between the stationary machine platform and the movable guide rail assembly. The cable transmits the lifting force from the stationary platform to the guide rails, enabling easy handling and positioning of the guide rails without requiring the machine platform itself to be heavy.
2Adaptability or versatility
If the elevator shaft height increases to accommodate growing buildings, then the adaptability improves, but the device complexity increases due to the need for continuous adjustments
Solution Approach 1:
The system transitions from a static guide rail installation to a dynamic, modular assembly process. Guide rail sections can be easily added, removed, or repositioned using the movable assembly platform and cable-based lifting device, allowing the elevator shaft to adapt to changing building heights without complex reconfiguration.
Solution Approach 2:
The stationary machine platform and cable-based lifting device are pre-installed at the top of the elevator shaft, enabling guide rail sections to be assembled and positioned in advance before being permanently installed. This preliminary action simplifies the overall adjustment process as the building grows.
3Productivity
If construction-phase elevator operations continue without interruption, then the productivity is maintained, but the safety deteriorates when adjustments are made to the lifting height
Solution Approach 1:
The stationary machine platform and cable-based lifting device enable guide rail adjustments to be performed without interrupting the construction-phase elevator operations. The lifting mechanism can extend or reposition guide rails while the elevator car continues to transport workers and materials, maintaining continuous productive action.
Solution Approach 2:
The system uses temporary, easily replaceable guide rail sections and a simple cable-based lifting mechanism for adjustments, rather than complex permanent structures. This allows for safe, reversible modifications to the elevator shaft height without compromising the safety or integrity of the permanent elevator installation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables continuous transportation of construction workers and materials during the construction period, and users of occupied premises, with lightweight and easily handled platforms, reducing operational disruptions and enhancing safety through quick setup and evacuation capabilities.
Implementation Method 1
a cable-based lifting device (8), with which the assembly platform (6) can be moved in the vertical direction
Data Source
AI summary
An elevator system for a building, wherein an elevator shaft becomes taller as the building height increases during a construction phase, includes a self-moving construction-phase elevator car guided on a guide rail section(s) for conveying persons or goods during the construction phase, an assembly platform arranged above the car from which the guide rail section is elongated upwards in a rail assembly phase, an upper protection platform temporarily fixed in the elevator shaft on which the assembly platform is suspended via a cable-based lifting device or is suspended in the rail assembly phase, a lower protection platform, wherein the assembly platform is moved vertically between the upper platform and the lower platform by the lifting device during the rail assembly phase, and a docking device temporarily suspending the car on the lower platform to secure the car for evacuations, the docking device connecting the car to the lifting device.