Construction Site Elevator System for High-Rise Access
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Solution Overview
Problem
Construction sites of high-rise buildings face challenges in safely accessing elevated work levels due to the gap between the top stop of jump lifts and the highest work level, which exceeds safe reach limits for workers.
Innovation Solution
A construction site elevator system comprising a frame structure and an integrated elevator, designed to be inserted into an elevator shaft and mounted at various positions, allowing for easy installation and repositioning to bridge the distance between the top stop of the jump lift and the top work level.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a jump lift with multiple platforms is used to transport people and materials, then transportation capability is improved, but the space requirement increases causing the top stop to be positioned 30-40m below the highest work level
Solution Approach 1:
The solution segments the transportation system into two distinct parts: the jump lift for material transport and a separate construction site elevator for personnel access to work levels. This segmentation allows each system to be optimized independently, with the elevator bridging the gap created by the jump lift's space requirements.
Solution Approach 2:
The construction site elevator acts as an intermediary system between the jump lift top stop and the highest work level. It provides a dedicated personnel transport solution that bridges the 30-40m gap without interfering with the jump lift's material handling function.
2Area of stationary object
If the top stop is positioned 30-40m below the highest work level, then jump lift platform space is sufficient, but worker safety is compromised as it exceeds safe reach limits
Solution Approach 1:
The construction site elevator serves as a safe intermediary transport method, eliminating the need for workers to safely reach across the 30-40m gap. It provides controlled, safe access to work levels while the jump lift maintains its platform space for material handling.
Solution Approach 2:
The construction site elevator is designed as a temporary, movable solution specifically for construction phases. It can be easily installed and dismantled as needed, providing safe worker access during the construction period without requiring permanent infrastructure.
3Reliability
If a complete elevator system is installed permanently, then transportation reliability is improved, but installation complexity and time increase
Solution Approach 1:
The construction site elevator is designed with dynamic, movable characteristics rather than being permanently fixed. The frame structure can be raised and repositioned along the elevator shaft as construction progresses, combining the reliability of a complete elevator system with the flexibility of temporary installation.
Solution Approach 2:
The elevator system is nested within a movable frame structure that can be inserted into the elevator shaft. This nested design allows the complete elevator system to be transported as a unit and installed quickly without complex on-site assembly of individual components.
4Adaptability or versatility
If the frame structure is designed to be insertable and mountable at different positions, then adaptability is improved, but structural complexity increases
Solution Approach 1:
The frame structure is designed with universal mounting capabilities that allow it to be positioned at various heights along the elevator shaft. Standardized mounting interfaces and adjustable positioning mechanisms provide multi-functionality, enabling the same structure to serve different construction stages without redesign.
Data Source
AI summary
A construction site elevator system temporarily bridges at least part of the distance between the top stop of a jump lift and the top work level on the construction site. The construction site elevator system includes a frame structure and an elevator within the frame structure, the frame structure being configured to be insertable into an elevator shaft and being mountable at different positions in the elevator shaft.

