Sliding Formwork Elevator Platform Height Adjustment
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Solution Overview
Problem
Existing methods for adjusting the conveying height of elevator systems in high-rise buildings under construction are inefficient, often requiring a construction crane and leaving 3-5 floors inaccessible due to the need for additional space and support structures, which increases construction time and effort.
Innovation Solution
A method utilizing a sliding formwork to support a first displaceable platform, allowing it to be moved closer to the current construction status without the need for a construction crane, and incorporating a sliding formwork with anchors to absorb the weight of the platform and tools, enabling the elevator system to be extended in height efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a construction crane is used to move the temporary machine room, then the elevator system can be positioned at higher floors, but the construction process becomes dependent on crane availability and increases construction time
Solution Approach 1:
The patent introduces a movable platform as an intermediary device that can be raised and lowered within the elevator shaft using a winch mechanism. This platform serves as a temporary support structure that allows the temporary machine room to be repositioned without requiring external construction cranes, thereby eliminating dependency on crane availability and reducing construction time.
Solution Approach 2:
The patent implements a self-contained lifting system within the elevator shaft that uses a winch mechanism to raise and lower the movable platform. This self-service mechanism eliminates the need for external construction cranes, allowing the elevator system to be repositioned independently based on construction progress.
2Reliability
If additional space is maintained above the temporary machine room for auxiliary platforms and roof structures, then safety requirements are met, but the elevator cannot reach the highest floors under construction
Solution Approach 1:
The patent employs a dynamic movable platform that can be raised and lowered as needed. The platform maintains sufficient space for safety requirements when at lower positions, but can be raised closer to the highest floors under construction when safety conditions permit, thereby providing dynamic adaptability between safety requirements and elevator accessibility.
Solution Approach 2:
The patent implements preliminary safety measures by providing a movable platform that can be positioned to maintain required safety distances from the highest floors. The platform is designed to accommodate future construction needs, allowing safety requirements to be met in advance while enabling the elevator to reach higher floors as construction progresses.
3Productivity
If the temporary machine room is positioned closer to the highest floor, then more floors become accessible to the elevator, but the support structure becomes more complex
Solution Approach 1:
The patent extracts the support function from complex external structures and integrates it into a simple movable platform system. The platform is supported by the elevator shaft structure itself rather than requiring additional auxiliary platforms or complex support structures, thereby simplifying the overall system while enabling closer positioning of the temporary machine room to the highest floors.
Data Source
Figure 1
AI summary
The invention relates to a method for changing the travel height of an elevator system (13) in a building under construction, wherein the elevator system (13) comprises an elevator shaft (15) with a first movable platform (25) that limits the travel height upwards. The first movable platform (25) is moved upwards in the elevator shaft (15), being supported by a slipform (17) during this movement. The invention further relates to a slipform (17) for carrying out the method.